React developer jobs in London - Page 4Crear alertas

Role: SC Cleared Microsoft Dynamics 365 Developer Perm Salary: 65,000 - 75,000 Location: Remote Role Overview We are looking to recruit a SC Cleared Microsoft Dynamics 365 Developer to play a key role in designing, building, and supporting complex Microsoft business solutions. This role focuses on high-quality delivery, strong platform engineering practices, and mentoring other developers, while contributing specialist expertise within defined project or programme scopes. You will work with a high degree of autonomy under general direction, applying agreed architectures, development standards, and secure coding practices across Dynamics 365 and the Microsoft Power Platform. You will also help resolve complex platform issues, support continuous improvement, and contribute to solution design and delivery decisions. Key Responsibilities Design and implement complex Dynamics 365 and Power Platform solutions within agreed project scope Develop, customise, and support Dynamics 365 (Sales and Customer Service) solutions Build scalable model-driven apps, canvas apps, and Power Automate flows aligned to agreed architectures and patterns Develop custom plugins, workflow activities, and integrations using C#, Microsoft Graph, and the Dataverse SDK Lead defined technical workstreams and collaborate with multidisciplinary delivery teams Apply and promote Power Platform development standards, patterns, and best practices Implement and enhance ALM practices using Power Platform Build Tools and Azure DevOps Conduct solution reviews and support quality assurance and testing activities, including automated and UAT testing Investigate and resolve complex platform issues, escalating where appropriate Mentor junior and mid-level developers, providing technical guidance and coaching Evaluate emerging Power Platform capabilities and provide evidence-based recommendations Support pre-sales activities through technical demonstrations and solution input Identify technical risks, propose mitigation strategies, and contribute to requirements refinement Plan and manage own workload to meet delivery timelines and quality expectations Actively contribute to agile delivery practices and continuous improvement initiatives Required Skills & Experience Strong experience with Microsoft Dynamics 365 (Customer Engagement) solution design and customisation Solid Power Platform experience including model-driven apps, canvas apps, Power Automate, and Power Pages Hands-on Dataverse experience (data modelling, relationships, business rules, and security) Strong C# development skills using the Dataverse SDK for plugins, workflows, and integrations Experience integrating Power Platform with Azure services, custom connectors, APIs, and Logic Apps Experience applying ALM principles using Azure DevOps and Power Platform Build Tools Solid JavaScript experience for client-side customisation and web resources Experience working in agile, multidisciplinary delivery teams Strong understanding of security concepts including Dataverse security and role-based access control Ability to communicate complex technical concepts clearly to technical and non-technical stakeholders Desirable Experience Experience delivering solutions in secure, regulated, or enterprise environments Background in public sector, government, defence, or highly regulated industries Microsoft certifications such as PL-400, PL-200, MB-400, or equivalent Experience with AI-enabled solutions using AI Builder, Copilot Studio, or Azure AI Services Experience with cloud-native Azure solutions integrated with Power Platform Knowledge of Power Platform governance and Center of Excellence practices Experience with PCF controls and modern web technologies (TypeScript, React) Understanding of Power Platform performance optimisation and profiling Experience with Azure integration services such as Service Bus, Event Grid, or API Management Personal Attributes Strong communicator with the ability to engage stakeholders at all levels Proactive, analytical problem-solver with attention to detail Comfortable working autonomously while mentoring and supporting others Highly organised, able to manage multiple priorities effectively Committed to high standards, secure development, and continuous improvement Positive leadership mindset with a strong delivery focus TPBN1_UKTJ

Full Stack Developer Remote-first (UK) | £80,000-£100,000 + equity We're hiring for a UK cyber security startup building a platform that helps organisations detect malicious open-source code and secure their software supply chain in real time. The product continuously scans dependencies, surfaces risk clearly, and helps teams prevent compromised packages from entering the codebase - without slowing engineering down. If you're a strong full stack engineer who enjoys building clean, scalable product and you're curious about cyber security, this is a chance to build something genuinely important. Why this is interesting (especially if you like cyber) Open source and third-party dependencies are now one of the biggest attack paths for modern organisations. This team is tackling that head-on with a platform designed for both engineering and security teams - offering malware detection, deep dependency visibility, and policy enforcement to stop bad code early. They're also part of a leading UK cyber security accelerator programme, supporting the next generation of high-growth security startups. The role You'll join a small, high-output engineering team and build customer-facing features end-to-end - front to back to cloud. You'll ship frequently, own features, and have real influence over architecture and product direction. This role includes LLM exposure, but the emphasis is practical integration via APIs (plugging LLM capabilities into workflows), not building research-heavy or RAG-first systems. What you'll do Build and ship product features across the stack (UI → API → cloud) Develop back-end services in Python, delivering reliable, well-tested APIs Build responsive, intuitive front-ends in React Work within an AWS serverless environment (event-driven services, APIs, scalable data patterns) Integrate external services (including LLM APIs) to enhance workflows and automation Collaborate closely with founders and product to shape requirements and deliver fast Improve reliability, performance, monitoring, and developer experience as the product scalesWhat you'll be building (product context) The platform focuses on software supply chain security, including capabilities such as: Detecting malicious or tampered open-source packages Providing deep insight into dependency trees and hidden risk Preventing compromised code from reaching production environments Helping organisations enforce security policies early in the SDLCWho you are You're a capable Full Stack Developer who has: Strong commercial experience building web applications with React and Python Hands-on experience in an AWS Serverless setup (Lambda, API Gateway, DynamoDB, event-driven architectures) Confidence integrating external APIs, including modern LLM/AI services A product mindset: you care about usability, clarity, and shipping value Comfort working in a startup environment - ownership, pace, and ambiguity An interest in cyber security or secure software development (no need to be an AppSec specialist already)Tech stack (high level) Frontend: React Backend: Python (APIs/services) Cloud: AWS Serverless AI: LLMs via API integrations (workflow enhancement + automation) experience is beneficial Package £80,000-£100,000 base salary (depending on experience) Equity opportunity Remote-first across the UK with flexibility and autonomy High impact: your work will directly shape the platform and customer experienceInterested? If you're excited by full stack engineering and want to build meaningful software in cyber security, get in touch with a CV / LinkedIn and a quick summary of what you've been working on recently (especially anything serverless or API integration heavy)

Job Advertisement: Python Developer - Equity Derivatives - 13029 Daily Rate: Negotiable via Umbrella Company Contract Length: 12 months with potential to extend Working Pattern: Full Time, Hybrid 2-3 days a week in the office Location: London Are you a passionate Python Developer eager to make an impact in the exciting world of Equity Derivatives? Our client is on the lookout for a dynamic mid-level developer to join their innovative team, dedicated to building a highly automated, fully Straight-Through Processing (STP) system that meets front-to-back business needs in the rapidly growing Structured Notes (SN) and Structured Products (SP) sectors. This is not just another job; it's an opportunity to contribute to the evolution of cutting-edge technology and process automation solutions that will help drive significant growth! What You'll Do: Collaborate with a vibrant team including platform teams, sales, trading, structuring, and operations to achieve collective success. Build applications, services, and tools aimed at automating pre-trade and post-trade activities, improving decision-making in the SN/SP landscape. Optimize the Treasury workstream to enhance STP Rates and support diverse team requests.Who You Are: A tech-savvy individual with experience in front-office equities derivatives systems. Previous experience with SN and SP is a bonus! Equipped with a degree in Computer Science or a related field. Proficient in designing and developing complex server-side functionality in Python. Familiar with SQL (preferably Oracle) and have basic Unix knowledge. A self-starter who thrives in an agile environment and is adept at juggling multiple priorities. Experienced within the financial services / banking sectorKey Responsibilities: Gain a deep understanding of our entire technology stack. Design and develop new features within existing Python services and create new services. Participate in agile planning with team members and write acceptance tests in coordination with QA. Provide Level 3 user support and engage effectively with business and platform partners. Enhance our CI pipeline and deployment strategies.Desired Skills: Experience with modern web UI technologies like HTML5, React, RESTful services, and Websockets. Knowledge of Structured Products (Notes, Warrants, Certificates) is advantageous.Why Join Us? Be part of the fastest-growing area in Equities Derivatives Technology. Collaborate with talented professionals and drive significant business growth. Enjoy a competitive daily rate that reflects your expertise and contributions.If you're ready to take on this challenge and make a difference, don't hesitate to apply! Let's innovate together and shape the future of Equity Derivatives. Apply Now! Join us in this exciting journey-your next big career move is just a click away! Please note we will be in touch within 48 hours if we have been shortlisted. Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you. We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention

Are you a Front End Developer with experience within the iGaming and Gambling sector looking for a new and exciting challenge? BENEFITS: up to £95k depending on experience, fully remote, excellent benefits package You will be joining a rapidly expanding company within the iGaming sector, who are committed to providing top-tier gaming experiences to players around the world. They have focused on bringing innovation, transparency, and player satisfaction to the forefront of the industry. And are recognised among the top brands within our market, blending sports betting and online casino entertainment on a cutting-edge, custom-built platform. As an experienced Senior Front-End Developer you will be joining a dynamic global development team. You will play a pivotal role in building visually appealing and high-performance web applications, working closely with our design team. As a key contributor, you will take design concepts and turn them into fully functional and responsive applications using ReactJS and Gatsby. If you're a frontend enthusiast with a focus on delivering seamless user experiences and a solid technical foundation, we’d love to hear from you. Core Responsibilities Build responsive, high-performance web applications using ReactJS. Develop reusable front-end components with a focus on scalability and maintainability. Integrate APIs and databases to deliver dynamic, data-driven features. Optimise web applications for speed, efficiency, and user experience. Write and maintain unit and integration tests to ensure code quality and stability. Participate in code reviews, providing constructive feedback and upholding best practices. Mentor junior developers, supporting their growth and technical development.Required Experience & Expertise Previous experience within the iGaming and Gambling Sector Strong background in front-end web development, specialising in ReactJS and Gatsby. Expert in HTML, CSS, and JavaScript, with a focus on creating responsive and accessible websites. Skilled in integrating data sources, such as REST APIs and databases, to develop dynamic and feature-rich applications. Knowledgeable in performance optimisation techniques to improve load speeds and search engine rankings. Experienced in writing unit and integration tests using tools like Jest and React Testing Library to ensure robust functionality.Desirable Skills Understanding of modern frontend tools and workflows. Knowledge of state management libraries such as Redux or Context API. Experience with version control systems like Git and continuous integration/deployment workflows. Familiarity with design systems and UI/UX principles.If you're passionate about frontend development and want to be part of a collaborative team shaping the future of web applications, we invite you to apply! Eligo Recruitment is acting as an Employment Business in relation to this vacancy. Eligo is proud to be an equal opportunity employer dedicated to fostering diversity and creating an inclusive and equitable environment for employees and applicants. We actively celebrate and embrace differences, including but not limited to race, colour, religion, sex, sexual orientation, gender identity, national origin, veteran status, and disability. We encourage applications from individuals of all backgrounds and experiences and all will be considered for employment without discrimination. At Eligo Recruitment diversity, equity and inclusion is integral to achieving our mission to ensure every workplace reflects the richness of human diversity

Software Developer Role Borehamwood We are small but growing company based in Borehamwood, seeking an experienced Software Developer to join our small but growing team in progressing the development of our bespoke software, and supporting the migration of legacy systems to the new architecture. As a key member of our team the Software Developer will play a pivotal role in shaping the platform and services that support a suite of mobile and web applications. Your responsibilities will include designing and developing robust, scalable, and secure backend systems, providing technical expertise across multiple squads as well as defining and enforcing the standards that ensure their integrity and compliance. Software Developer - Required Skills and Experience • Good Knowledge of .Net Framework and .Net Core., • Develop applications using C#., • These are mainly Web Services, Rest API and IP Communications., • Database queries using Entity Framework. WPF • Some knowledge of developing WPF user applications SQL. • To allow Creation of database queries and some database design. React • This is not essential but a helpful skill to have. SOLID • To allow software design / practice. Problem Solving • Ability to tackle bugs and problem solve in a live environment, with excellent communication skills to support engineer in the field. Software Developer - Experience • 3-5 years minimum, • Monday - Friday office hours, • Work Location: In person, • Full Time, Permanent position., • Salary £42,000- £50,000

Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. C# Developer (Architecture Focused) London, 3 days per week on site required 6-month initial contract £400.00 via umbrella per day The Opportunity We're looking for a senior C# Developer with a strong architectural focus to join a highly skilled engineering team working on business-critical systems at scale. This role sits at the heart of a major technology estate and offers the chance to modernise legacy platforms, shape technical direction, and contribute to secure, high-performance solutions. You'll work across both transformation initiatives and greenfield development, collaborating closely with engineering, DevOps, DBAs, and governance teams in a structured, enterprise environment. What You'll Be Doing Designing and developing applications using .NET Framework / .NET Core, React / TypeScript, Python, and relational databases Refactoring and modernising legacy systems to reduce technical debt and improve performance and reliability Embedding modern security patterns across APIs and services (authentication, authorisation, OWASP controls, secure access) Contributing to greenfield solutions, ensuring scalability, maintainability, and security from day one Optimising SQL Server and Oracle databases and supporting safe releases through change management processes Supporting production systems and collaborating across global technology teams What We're Looking For Strong experience with C#.NET in complex or enterprise environments Proven ability to modernise legacy applications Good architectural understanding and secure development mindset Experience with SQL Server and/or Oracle Comfortable working across the full SDLC in a controlled environment Candidates will ideally show evidence of the above in their CV to be considered please click the "apply" button. We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention. Please be advised if you haven't heard from us within 48 hours then unfortunately your application has not been successful on this occasion, we may however keep your details on file for any suitable future vacancies and contact you accordingly

Our client, an established media and events company, is currently recruiting a Front-end Developer to join their digital operations team. The Front-end Developer will be responsible for building dynamic websites to create engaging user-centric, responsive and accessible digital experiences. Key Responsibilities for the Front-end Developer: Participating in front-end development converting designs into clean, semantic, and responsive HTML/CSS/SCSS code, ensuring cross-browser and device compatibility Contributing to the implementation of React, Vue and vanilla JavaScript code Working closely with designers to implement and optimise designs, bridging the gap between visual design and technical functionality Skills Required for the Front-end Developer: Solid background within Front-end Development HTML and CSS JavaScript Knowledge of Design Software (Such as Figma or equivalent) Strong communication skills Please apply as directed

Our client is a market leading startup. They are the only company currently able to provide a full AI-driven solution to their market. They are looking for a developer to take ownership of the LiDAR room scanning journey. This role is critical to improving scan quality, 3D model accuracy, and overall stability of the LiDAR-to-portal pipeline. Key Responsibilities • Own and improve the end-to-end LiDAR scan journey, for mobile capture, • Work on 3D room reconstruction using LiDAR data and render accurate models, • Identify, fix, and proactively improve issues in existing LiDAR and 3D implementations, • Take responsibility for ongoing improvements without relying on legacy ownership Required Experience • Strong experience building mobile applications that use LiDAR, • Hands-on experience with Apple’s RoomPlan / ARKit / LiDAR APIs, • Experience capturing spatial data and turning it into usable 3D room models, • Strong Swift / iOS experience (especially for native LiDAR workflows), • Experience working with React Native, including bridging native modules, • Understanding of 3D rendering concepts and working with 3D engines (e.g. Three.js / similar) ALL APPLICANTS MUST BE FREE TO WORK IN THE UK Exposed Solutions is acting as an employment agency to this client. Please note that no terminology in this advert is intended to discriminate on any grounds, and we confirm that we will gladly accept applications from any person for this role

Full Stack Developer - Active SC, NPPV3, Java Up to £550 per day - Inside IR35 Remote 6 months My client is an instantly recognisable consultancy who require a Full Stack Developer with Active SC and NPPV3 clearance for a client within the public sector. Key Requirements: Proven commercial experience working as a Full Stack Developer within the Public Sector. Active SC and NPPV3 Clearance. Senior‑level expertise in either Java/Spring (Boot, Data JPA, Security) or JavaScript/TypeScript with React; mid‑level experience acceptable in the other Proven experience delivering high‑quality, cross‑functional solutions using microservices and micro‑frontend architectures Hands‑on experience with Java & Spring best practices, React, and cloud/data services including SNS, SQS, S3, Aurora/PostgreSQL, and OpenSearch Excellent communication skills. Nice to have: Technical leadership with the ability to identify delivery inefficiencies, escalate issues, and drive value.Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

Full Stack Python / JavaScript Developer - London - £60k 1-2 days per week in office My prestigious financial services client is looking to expand their digital transformation team and require an experienced Full Stack Developer with strong Python & JavaScript to join them working across a range of new initiatives Core skills across Python and JavaScript with experience in Django and/or React are an absolute must for this position Duties: • Work within a small team of developers, contributing to daily code reviews and merge requests. - Develop across the entire product stack - Take ownership of projects, from requirement gathering through to deployment - Mentor junior developers to support their technical growth. Skills & Experience: • Minimum of 3 years of experience as a full-stack developer across: Backend: Python, Django Frontend: JavaScript, React, Next.js Version Control: Git Beneficial Knowledge: • Azure - AI Full Stack Python / JavaScript Developer - London - £60k In accordance with the Employment Agencies and Employment Businesses Regulations 2003, this position is advertised based upon DGH Recruitment Limited having first sought approval of its client to find candidates for this position. DGH Recruitment Limited acts as both an Employment Agency and Employment Business

Our client is a market leading startup. They are the only company currently able to provide a full AI-driven solution to their market. Theyare looking for a developer to take ownership of the LiDAR room scanning journey. This role is critical to improving scan quality, 3D model accuracy, and overall stability of the LiDAR-to-portal pipeline. Key Responsibilities Own and improve the end-to-end LiDAR scan journey, for mobile capture Work on 3D room reconstructionusing LiDAR data and render accurate models Identify, fix, and proactively improve issues in existing LiDAR and 3D implementations Take responsibility for ongoing improvements without relying on legacy ownership Required Experience Strong experience building mobile applications that use LiDAR Hands-on experience with Apples RoomPlan / ARKit / LiDAR APIs Experience capturing spatial data and turning it into usable 3D room models Strong Swift / iOSexperience (especially for native LiDAR workflows) Experience working with React Native, including bridging native modules Understanding of 3D rendering conceptsand working with 3D engines (e.g. Three.js / similar) ALL APPLICANTS MUST BE FREE TO WORK IN THE UK Exposed Solutions is acting as an employment agency to this client. Please note that no terminology in this advert is intended to discriminate on any grounds, and we confirm that we will gladly accept applications from any person for this role. TPBN1_UKTJ

C# Full Stack Developer – Microsoft Stack | Hybrid Working Location: [Reading] Remote Salary: £60k - £80k doe Contract: Permanent We’re hiring multiple .NET Developers to join an ambitious tech‑driven business building a brand‑new financial platform from scratch. Work with modern tech, solve real engineering problems, and help shape a next‑gen product that makes complex risk management simple. What you’ll do Build and enhance financial applications using .NET, C# and Azure Develop fast, scalable APIs & microservices Work across front‑end (Angular/React/Vue) and back‑end Collaborate with a friendly, high‑performing team Integrate modern tooling and cloud‑native services Tech you’ll use .NET 10, C# 14, ASP.NET Core, Azure, SQL, TypeScript, JavaScript, Angular, React, Vue.js, .NET MAUI, Microservices, APIs, Docker, Kubernetes, GitHub Copilot. What we’re looking for Strong C# / .NET / .NET Core experience Azure & SQL knowledge API or microservices development Passion for clean code + learning new tech What’s in it for you Greenfield project Modern engineering culture Real ownership + growth If you love modern .NET and want to build something new, apply now. Contact me directly on (url removed)

Engineering Manager / Tech Lead (contract) I am recruiting a day rate contractor to assist my client who is going through digital transformation. The project involves consolidating local websites into one global website as well as consolidating multiple CMS (content management systems). This will suit an individual who has experience within web development such as full stack or front end with some backend experience. This is a senior role and would suit someone who is a hands-on engineering manager or a tech lead. Experience A full stack developer with an emphasis on front end technologies Experience of delivering on large (global) scale web digital transformation projects. CMS experience such as Sitefinity, WordPress, Kentico, Content AI or similar. Experience with solutions design, architecture. Any experience of working with a customer-focused brand, B2C would be useful. Worked on membership platforms, subscriptions platforms and any other E-commerce platforms. Experience with managing third party vendors, good stakeholder management skills Coding languages such as React, JavaScript, AngularJS, .Net, C#, TypeScript, HTML, CSS, This will be initially a six-month day rate contract inside IR35 via umbrella company from our supplier list. This is a hybrid role with a requirement of three days a week in the office based in central London. The rate is between £650 - £800 per day depending on experience. Please note you will receive an automated response advising you that we have received your CV. Morgan Philips Group is a global talent solutions business that disrupts conventional thinking in executive search, recruitment and talent consulting. We operate in over 18 markets in Europe, North & South America, Asia, and the Middle East & Africa. We understand that the future is digital and social, so we embrace the latest technology, including video ads and CVs, as well as social recruiting. Our innovative services are tailored to the new world of work yet we do not lose sight of the fact that employees be they existing and potential are ultimately human beings. We are committed to ensuring that all job applicants are treated equally, without discrimination because of gender, sexual orientation, marital or civil partner status, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability or age

Senior Front-End Developer (Creative Technologist) • 6-month contract (initially), • Market Rates, • Outside IR35, • Remote Working (plus x1 day per week in central London) The Opportunity Our client is seeking a Senior Creative Technologist / Senior Front-End Developer to play a pivotal role in shaping the future of the Client Design Practice for a $bn US tech platform and influence the delivery of globally recognised digital experiences, Joining a forward-thinking organisation at the intersection of design, technology and innovation, where you will help define how advanced prototypes and production-ready digital platforms are conceived, engineered and delivered, while working within a highly creative and technically ambitious environment. You will be consulting alongside the Technology Director, Lead Visual Designer and an established Offshore Development team to ensure creative ideas are not only technically achievable but executed to an exceptional standard. You will operate as a senior technical voice within the business, translating conceptual ideas into high-performance digital experiences while influencing architectural and technology decisions across a range of complex projects. NB: This role is remote-first, with collaborative in-person sessions in the central London office one day per week. Skills and Experience Essential • A proven pedigree with a minimum of 7 years’ professional front-end development experience, including senior or leadership responsibilities, • Expert knowledge of JavaScript, TypeScript, React and modern build pipelines, • Experienced in delivering technically complex prototypes and digital products with a strong background in creative technology and interactive digital experience development, • Advanced experience with animation frameworks such as GSAP, Lottie or Framer Motion, with experience integrating APIs, headless CMS platforms and cloud-based architectures, • Demonstrated experience collaborating across global and cross-functional teams, possessing strong communication skills with ability to engage both technical and creative stakeholders Desirable • Experience with web-based 3D technologies including Three.js, WebGL or shader development, • Exposure to AI or machine-learning driven creative workflows, • Previous experience within digital agencies, creative studios or innovation environments Applications: Please contact Edward here at ISR Recruitment to learn more about our client and how they are leading the way in developing the next generation of technology solutions within their sector through innovation and transformational technology?

Software Developer - Full Stack - C#, JavaScript, React Epsom £55,000 - £60,000 | Full-time, Permanent | Hybrid/Remote (after probation) No sponsorship offered The Opportunity Join a fast-growing UK SaaS company delivering innovative solutions to the Public Sector. We're looking for a Senior Software Developer who thrives on solving complex technical challenges in a collaborative environment. You'll be instrumental in designing, developing, and maintaining our flagship communication platform – a mature, trusted product serving thousands of users across government and local authorities. What You'll Do • Build and maintain high-quality software solutions that directly impact public services, • Collaborate with cross-functional teams to define and deliver technical solutions, • Drive best practices and participate in architectural decisions, • Optimise application performance, security, and scalability, • Mentor through code reviews and contribute to a culture of continuous improvement What We're Looking For Essential: • 5+ years' software development experience (SaaS environment preferred), • Strong proficiency in .NET, C#, JavaScript, and TypeScript, • Experience with modern frameworks (React/Angular/Vue.js and Node.js/.NET), • Solid knowledge of SQL and NoSQL databases, • Familiarity with DevOps practices and CI/CD pipelines, • Excellent problem-solving skills and ability to thrive in a fast-paced environment What's On Offer • Competitive salary up to £60,000, • Hybrid/remote working (after 3-month probation), • Health insurance (after 1st year), • Pension scheme, • Flexible working hours, • Clear career progression to Lead Developer roles, • Continuous learning through mentorship and training, • Central Epsom office (5 minutes from station) Ready to Make an Impact? If you're passionate about technology and want to work on solutions that matter to millions of UK citizens, we want to hear from you

Sanderson Government and Defence are supporting a commercial supplier to government in their search for a Cloud Application Developer to work out of either London, Manchester or Gloucestershire. This client, aside from offering a very strong package, offer an excellent development programme, with a real willingness to support both financially and otherwise. Tech wise, we have requirement for both Java and Python backend languages, and cloud experience would also be very helpful indeed. AWS is by far the most prevalent, but we will look at individuals with transferable experience in this area. Role Responsibilities Collaborate with project stakeholders to develop a strong understanding of the business environment, technical landscape, and organisational strategic objectives. Advise customers on emerging technologies and best-practice methodologies, designing and delivering innovative, automated solutions to complex challenges. Interpret and apply security policies, ensuring all implemented solutions meet required security standards. Design and implement highly available, scalable, and resilient systems. Desirable Skills and Technologies Proven experience with cloud platforms, including AWS, Azure, and Azure Virtual Desktop. Proficiency in programming languages such as Python, React, and Go. Experience deploying applications within cloud architectures, Hands-on experience with web application services. Familiarity with Test-Driven Development and Behaviour-Driven Development Experience in API design, development, and integration. Knowledge of monitoring and observability systems. Understanding of modern digital delivery processes and agile methodologies. Working knowledge of the Atlassian toolset. Experience with JavaScript front-end frameworks and core front-end technologies. Strong understanding of asynchronous programming concepts and associated design considerations. Knowledge of database schema design and query languages. Experience with source control and version management systems. Understanding of deploying and configuring AWS components in environments with strict security requirements. Awareness of identity, access management, and authentication mechanisms and related security tools. This role will require you to be willing and eligible to undergo a high level of UK security clearance. If you're interested in the above, apply or reach out to Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients. If you need any help or adjustments during the recruitment process for any reason , please let us know when you apply or talk to the recruiters directly so we can support you. TPBN1_UKTJ

Sanderson Government and Defence are supporting a commercial supplier to government in their search for a Cloud Developer to work out of either London, Manchester or Gloucestershire. This client, aside from offering a very strong package, offer an excellent development programme, with a real willingness to support both financially and otherwise. Role Responsibilities Collaborate with project stakeholders to develop a strong understanding of the business environment, technical landscape, and organisational strategic objectives. Advise customers on emerging technologies and best-practice methodologies, designing and delivering innovative, automated solutions to complex challenges. Interpret and apply security policies, ensuring all implemented solutions meet required security standards. Design and implement highly available, scalable, and resilient systems. Desirable Skills and Technologies Proven experience with cloud platforms, including AWS, Azure, and Azure Virtual Desktop. Proficiency in programming languages such as Python, React, and Go. Experience deploying applications within cloud architectures, Hands-on experience with web application services. Familiarity with Test-Driven Development and Behaviour-Driven Development Experience in API design, development, and integration. Knowledge of monitoring and observability systems. Understanding of modern digital delivery processes and agile methodologies. Working knowledge of the Atlassian toolset. Experience with JavaScript front-end frameworks and core front-end technologies. Strong understanding of asynchronous programming concepts and associated design considerations. Knowledge of database schema design and query languages. Experience with source control and version management systems. Understanding of deploying and configuring AWS components in environments with strict security requirements. Awareness of identity, access management, and authentication mechanisms and related security tools. This role will require you to be willing and eligible to undergo a high level of UK security clearance. If you're interested in the above, apply or reach out to Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients. If you need any help or adjustments during the recruitment process for any reason , please let us know when you apply or talk to the recruiters directly so we can support you. TPBN1_UKTJ

Role: - Visualisation Engineer Location: Harmondsworth, England (Waterside Office) , UK (Hybrid) (3 days onsite in a week is Mandatory) Duration: 6 Months Contract with possibility of renewal Note:- Candidates needs to travel to Europe once in a month (European country) Description:- The Visualisation Specialist will design and build enterprise-grade visualisations that deliver actionable insights at speed for British Airways initially, whilst ensuring frameworks can scale across all OpCos. This role demands consultancy-level frontend engineering expertise and the ability to balance velocity with strong engineering standards and discipline. Key Responsibilities :- Rapid prototyping: Design, develop and deliver user-friendly, visually compelling and robust dashboards using Tableau to meet urgent business needs Robust engineering: Architect and build production-grade, reusable dashboard solutions using modern frontend technologies, integrating with enterprise APIs and data sources Data transformation: Execute complex data wrangling, cleaning, and transformation tasks, primarily with SQL, to prepare datasets for dashboard usage Data processing: Use SQL and Python for data processing and analytics workflows Scalability & performance: Ensure solutions are modular, performant, and scalable across OpCos, with CI/CD, automated testing, and cloud-native deployment Operational integration: Embed visualisations into BA workflows, enabling real-time decisionmaking and measurable impact Communication: Work closely with stakeholders to gather and translate requirements into tech specifications and validate results. Collaboration: Communicate with Data Engineers and Analysts to ensure cohesive solutions deliver cohesive, high-quality solutions Multi-OpCo deployment: Design for interoperability and reusability across BA, Aer Lingus, Iberia, Vueling, etc Stakeholder engagement: Translate business requirements into impactful visual experiences; drive adoption and continuous improvement Required Skills & Experience:- 10+ years in dashboard creation and development, with strong command of Tableau, operating in AI/data environments Extensive experience in advanced SQL for data manipulation and transformation in complex datasets Professional background as a BI Developer, Analytics Engineer, Data Analyst, or a similar role involving dashboard development Strong communication skills and ability to work collaboratively with cross-functional teams Proven ability to integrate quickly into new teams and deliver immediate value (Preferred) Experience with Python for data processing or automation (Preferred) Strong knowledge of API integration. (Preferred) Hands-on experience with modern frontend frameworks (React, Next.js, Typescript, etc) (Preferred) Hands-on experience with cloud platforms (AWS preferred); familiarity with scalable deployment and integration Familiarity with airline or logistics data domains is a plus Initial co-location with BA teams in London is essential to ensure close collaboration. Candidates must also be prepared to travel internationally during later stages to facilitate group-wide deployment. TPBN1_UKTJ

Job Title: UI Developer Location: Bromley Working Pattern: Full Time, Hybrid - 3 days in the office Contract Length: 12 months with potential for extending Daily rate: Circa 700per day via an Umbrella Are you a passionate UI Developer looking to make an impact in the finance industry? Do you thrive on building modern, scalable, and user-friendly web interfaces? If so, we have an exciting opportunity for you to join our client's dynamic team! About the Role: As a UI Developer, you will be at the forefront of developing innovative user interfaces for a cutting-edge Generative AI platform. Collaborating with talented professionals in Global Markets Sales & Trading and Quantitative Strategies, you will harness the power of data to drive insights and transform business processes. Key Responsibilities: Design, develop, and maintain reusable UI components using React and TypeScript. Implement responsive and accessible interfaces that meet enterprise standards (e.g., WCAG). Collaborate with product managers, UX designers, and backend engineers to deliver high-quality features. Integrate with RESTful APIs and manage application state using Redux Toolkit and RTK Query. Incorporate Vercel AI SDKUI components to enhance chatbot functionality and user experience. Ensure code quality through unit and integration testing with Vitest and React Testing Library. Participate in code reviews and contribute to architectural decisions. Optimize performance and troubleshoot issues across various browsers and devices. What You Bring: Required Skills & Experience: Experience developing modern web applications with React and TypeScript. Expert knowledge in JavaScript/TypeScript Strong understanding of component-based architecture and state management. Hands-on experience in Python service-side development and APIs (e.g., FastAPI). Familiarity with testing frameworks (Vitest, React Testing Library) and pytest for Python. Experience with CI/CD tools and collaborative development workflows using Git/Bitbucket.Non-Technical Skills: Self-starter with excellent analytical and problem-solving abilities. Detail-oriented and highly organised. Strong communication skills to collaborate with business stakeholders and technical teams. Adaptable to shifting and competing priorities. Committed to delivering high-quality service.Preferred Qualifications: Experience with schema validation using Zod. Familiarity with component documentation tools (e.g., Storybook). Understanding of performance optimisation techniques for large-scale applications. Experience developing frameworks and tools specific to AI/ML Familiarity with cloud platforms and development in cloud environments. Why Join Us? At our client's organisation, you will enjoy a collaborative and inclusive workplace that values your contributions. They are committed to your professional growth and well-being, offering competitive benefits that support your physical, emotional, and financial health. This is more than just a job; it's an opportunity to work on innovative projects that make a difference. You'll be part of a team that believes in Responsible Growth, ensuring a positive impact on clients, communities, and shareholders. Ready to Make a Difference? If you're excited about leveraging your skills in a fast-paced environment and contributing to a groundbreaking Generative AI platform, we'd love to hear from you! Apply Today! Join us in shaping the future of finance through technology and innovation. Your journey starts here! We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention. Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you

I am working with a consultancy feeding into the public sector looking for a VueJS developer to join a project. Fully remote 6 month contract Inside IR35 SC eligible VueJs - (React developers considered) JavaScript Test Driven Development - (Unit Testing and Content Verification testing experience beneficial) Accessibility • WCAG Knowledge would be very beneficial but any experience developing Accessible frontends would be a big plus

Back-End developer (python and GCP) - hybrid London - £525 inside IR35 Exalto consulting are currently recruiting for a contract back-end developer who has great exposure to python programming, javascript, react and GCP, this is inside IR35 paying £525 per day and initially 6 months. Skills required for the role: •Expert knowledge of backend development with Python, Node.js and modern JavaScript frameworks •Experience with frontend technologies including React •Strong experience deploying and managing applications on Google Cloud Platform (GCP) •Proficiency in designing and integrating RESTful APIs •Demonstrated ability to implement automated testing strategies (unit, integration, regression) •Knowledge of security best practice, role and permission management, and data protection •Experience optimising performance and scalability for enterprise applications •Strong DevOps capability including CI/CD pipelines, automation and monitoring If you have the above experience and are looking for a new contract role please send your CV for immediate consideration as our client are looking to hire ASAP Back-End developer (python and GCP) - hybrid London - £525 inside IR35

Senior C#. NET Developer Location: London (Hybrid) Contract: 6 months IR35: Inside IR35 Our client, a leading global investment bank, is looking for an experienced C#. NET Developer to join their team on a 6-month contract. This role is pivotal in modernising and supporting business-critical applications while contributing to greenfield development initiatives. Key Responsibilities Design, build, and maintain server-side and client-side applications using .NET Framework/Core, React/TypeScript, and relational databases (SQL Server, Oracle). Refactor legacy systems to reduce technical debt and improve performance. Implement modern security patterns (OAuth2/OpenID Connect, OWASP principles). Optimise database queries and schemas; ensure safe migrations. Participate in CI/CD processes, code reviews, and adhere to Change Management procedures. Collaborate with cross-functional teams and provide occasional out-of-hours support. Essential Skills Strong proficiency in .NET Framework/Core. Experience with SQL Server and Oracle performance tuning. Knowledge of secure SDLC practices and OWASP principles. Hands-on experience with CI/CD pipelines and troubleshooting across Windows Servers and databases. Excellent communication and problem-solving skills. Desirable React/TypeScript Certifications in Azure/AWS, CISSP, or DevOps. Familiarity with Docker/Kubernetes, observability practices, and API gateways. Exposure to greenfield projects and Python scripting. Apply now to join a dynamic team and work on cutting-edge projects within a global investment banking environment

Senior/LeadShopifyDeveloper AboutUs Myclientisa ShopifyPlatinumPartner andoneoftheUKsleading digitalcommerceagencies ,helpingsomeoftheworldsmostexcitingbrandsbuild,scale,andoptimisetheironlinestores.OurteamispassionateaboutcraftingseamlesscustomerexperiencesandpushingthelimitsofShopifysecosystem. Astheycontinuetogrow,they'relookingfora Senior Developer tojoinourfullyremoteteamsomeonewhocantakeownershipofcomplexShopifyprojects,guideourdevelopmentteam,anddrivebestpracticesacrossourtechnicaldelivery. TheRole Asa Senior ShopifyDeveloper ,youllberesponsibleforleadingtechnicalbuildsacrossarangeofShopifyPlusprojects.Youllcollaboratecloselywithdesigners,projectmanagers,andotherdeveloperstodeliverperformant,scalable,andbeautifullycraftedecommerceexperiences. Youllalsoplayakeyroleinmentoringjuniordevelopers,definingcodingstandards,andcontributingtoarchitecturaldecisionsthatshapeourtechnicaldirectionasaPlatinumPartneragency. KeyResponsibilities Contribute to end-to-endShopifyandShopifyPlusdevelopmentprojects. Architect,develop,andmaintaincustomShopifythemesandapps. Implementclean,efficient,andreusablecodeusingmodernfront-endandback-endtechnologies. Collaboratewithcross-functionalteams(Design,UX,Strategy,QA,PM). Optimisesiteperformanceandscalability. Integratethird-partyAPIsandcustomfunctionalityusingShopifysAPIandGraphQL. StayaheadofemergingShopifyfeatures,trends,andbestpractices. Providementorshipandtechnicalleadershiptootherdevelopers. Participateincodereviews,technicalplanning,andprojectestimations.' RequiredSkills&Experience 4+yearsofprofessionalexperienceinwebdevelopment,withatleast3yearsspecialisingin Shopify/ShopifyPlusinaseniororleadposition. Deepunderstandingof ShopifysLiquid templatinglanguageandthemearchitecture. Strongproficiencyin HTML5,CSS3,JavaScript(ES6+),React/Vue ,andmodernfront-endbuildtools(Webpack,Vite,etc.). Experiencebuilding customShopifyapps using Node.js or RubyonRails . Familiaritywith Headless/Hydrogen/StorefrontAPI approaches. Provenexperiencewith ShopifyAPIs,GraphQL,andwebhooks . StrongunderstandingofecommerceprinciplesandUXbestpractices. Experienceleadingprojectsormentoringdevelopers. Excellentcommunicationandcollaborationskills. Mustbe basedintheUK withfullrighttowork. NicetoHave Experiencewith TypeScript . Familiaritywith headlessCMS platforms(e.g.Contentful,Sanity). Knowledgeof CI/CDpipelines andmodernDevOpsworkflows. Previousexperienceinan agencyenvironment . ThisroleoffersflexibleworkingandyoumustbebasedintheUK. 2Stageinterviewprocesswithinterviewslotsimmediatelyavailable. Applynowtobeconsidered. TPBN1_UKTJ

Job Role: Developer Working Model: Permanent Location: Hybrid London Salary: £70,000 + Bonus Are you a hands-on front-end developer who loves bringing exceptional digital experiences to life? Do you enjoy shaping world-class user interfaces using modern frameworks like Sitecore, React, Next.js, and SXA? This is an exciting opportunity to join a growing digital function as part of a new Product Experience (PX) Practice . You'll play a key role in elevating digital experiences across multiple platforms, working closely with cross-functional product teams to build intuitive, engaging, and high-performing user interfaces. About the Role You'll be responsible for converting UX design into high-quality UI components and building reusable, scalable component libraries across Sitecore JSS, SXA, and React/Next.js. You'll collaborate with UX, product, business, and technology teams to deliver user-centric solutions and support wider initiatives through ideation, POCs, and knowledge sharing. You'll also help drive best practices and raise standards in UI/UX across the organisation. Key Responsibilities Transform UX designs into UI components, workflows, and interfaces using React/Next.js and Sitecore. Build robust, reusable component libraries across Sitecore JSS, SXA, and React/Next.js. Partner with UX designers, product managers, and business analysts to embed user-centred design. Develop components to a high standard, following best practices and optimised performance. Contribute to reusable design systems and shared libraries used across projects. Engage with developers and cross-functional teams to advocate for user-centric solutions. Ensure solutions align with evolving UX standards, guidelines, and toolkits. Support POCs, design sprints, and innovation sessions. Enhance front-end experiences and overall UI/UX across digital products. Upskill colleagues in React, Sitecore, and front-end best practices. Essential Skills & Experience Strong experience as a Sitecore Developer, ideally within a complex or large-scale environment. Hands-on experience with Sitecore (JSS, SXA, component libraries) and React/Next.js. Experience using tools/services to manage Sitecore XPC (Managed Cloud Offering). Knowledge of front-end pipelines and tooling such as Gulp, NPM, Bower, Webpack. Practical GitHub experience and familiarity with full development lifecycle. Demonstrable experience building applications from scratch. Ability to interpret and follow brand guidelines and design standards. Deep understanding of user-centred design, accessibility, and responsive design principles. Strong communication, facilitation, and collaboration skills. Ability to quickly adopt and learn new technologies. Desirable Experience with Sitecore SXA, Pega, or Guidewire Digital platforms. Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients. If you need any help or adjustments during the recruitment process for any reason , please let us know when you apply or talk to the recruiters directly so we can support you. TPBN1_UKTJ

Senior Full Stack Developer Contract Length: Initial 1 month with strong potential for extension Location: Remote Day rate: £600 - £700 per day outside IR35 Data Idols are working with a private equity-backed data analytics and insights business, is seeking a Full Stack Developer to lead a discovery and assessment phase across its existing product platforms. The organisation operates multiple legacy systems and is looking to evaluate and define a clear re-platforming strategy, consolidating disparate applications into a single, modern, cloud-native platform. The goal is to simplify operations, improve scalability, and materially reduce long-term running costs. The Opportunity This is a senior, hands-on developer engagement with real influence. Reporting directly into the CIO, you'll take ownership of a structured discovery process, reviewing current platforms, understanding how they're used, and defining pragmatic options for the next-generation architecture. You'll work directly with existing systems: inspecting database schemas, reviewing source code and DevOps tooling, and collaborating with product teams to understand both custom-built and off-the-shelf application functionality. From there, you'll shape recommendations covering platform architecture, technology choices, and vendor selection. Skills & Experience Background working with PHP or WordPress Strong experience working with React Experience working with Javascript Comfortable acting as the primary technical owner Senior Full Stack Developer

Senior Software Engineer / Developer (LLM TypeScript Node API) London / WFH to £100k Are you a senior technologist with experience of productionising LLMs? You could be joining a scaling tech company that has developed a digital distribution platform transforming electronic trading in the institutional FX options market via a central marketplace where institutions can place, discover and match option interests electronically - improving liquidity and efficiency for all participants as the platform scales. As a Senior Backend Engineer you will collaborate with a small team of technologists and successful entrepreneurs to design and implement intelligent solutions to business needs, with a focus on TypeScript and Node backend systems as well as productionising LLMs. You'll help to ensure best practices are maintained and participate in code reviews to maintain sound engineering practices and share knowledge with the team. Location / WFH: There's a remote first policy, with the caveat that you'll meet up with the team in London once every two months, so you can work from home the majority of the time. About you: You have experience of building enterprise grade systems that are reliable, secure, maintainable and observable You have strong TypeScript, Node.js and Python backend development skills You have used AI tools (such as Claude.ai, Cursor) and are comfortable and interested in how to use them to improve efficiency You have experience with LLMs in production You have experience of building event-driven systems and public APIs You have a strong appreciation of SaaS, Kubernetes, Infrastructure as Code, GitOps, CI/CD practices and Cloud infrastructure (they use GCP but AWS experience is also fine) You have some experience with front end work using React (or similar) You're comfortable in a fast paced, sometimes ambiguous start-up environment with changing priorities You're collaborative and pragmatic with great communication skills What's in it for you: Salary to £100k Stock options 25 days holiday Impactful role with excellent career growth Remote working Apply now to find out more about this Senior Backend Engineer / Developer (LLM TypeScript Node.js) opportunity. TPBN1_UKTJ

Senior Developer - Full-Stack (C#, .NET, React, Azure) Location: Hybrid - London (1 day per week / fortnight onsite) Salary: Competitive up to £80000 + Excellent Benefits Type: Permanent Are you an experienced Senior Developer with strong full‑stack skills and a passion for modern cloud technologies? Do you enjoy leading by example, shaping technical solutions, and mentoring others? This is an exciting opportunity to join a forward‑thinking organisation that is investing heavily in digital transformation and cutting‑edge technology. About the Role As a Senior Developer, you'll play a key role in designing, developing and maintaining high‑quality software solutions across both enterprise and client‑facing environments. You'll work closely with developers, UX/UI designers, product teams and stakeholders to bring innovative ideas to life and deliver outstanding digital products. This position offers exposure to modern technologies, DevOps practices, and the opportunity to contribute to a culture of continuous improvement. You'll attend the London office once a week as part of a flexible hybrid model. What You'll Be Doing Deliver hands‑on full‑stack development with a strong focus on front‑end engineering and excellent UX. Build, maintain and support enterprise-grade and customer-facing applications. Collaborate with architects, business teams and project managers to translate concepts into practical technical solutions. Lead by example in coding standards, best practices and code reviews. Mentor junior and mid-level developers, supporting their growth and development. Assist with workstream planning, backlog management and driving team productivity. Manage external development partners or internal team members when required. Use modern DevOps methodologies to streamline delivery and increase efficiency.About You You will be a confident, proactive developer who enjoys solving problems, collaborating effectively, and taking ownership of your work. You'll bring: Proven experience delivering digital products using agile methodologies. Strong expertise in C#, .NET, React and Azure. Additional skills across JavaScript, HTML/CSS and Azure PaaS (Functions, Logic Apps, Cosmos DB, App Service, Service Bus). Knowledge of ARM/Bicep templates and SharePoint (beneficial). Solid understanding of software development principles and secure coding. Experience with DevSecOps and automated testing tools. A creative, detail-oriented and solutions-driven mindset. Ability to adapt in a fast-paced agile environment. Relevant development or cloud certifications (advantageous).What's on Offer A people-first culture that values individuality and contribution. A genuinely flexible working environment with hybrid options. Clear career progression pathways supported by structured development frameworks. Access to modern collaboration tools and environments. Opportunities to expand your skills across multidisciplinary teams. A supportive environment that encourages innovation, curiosity and continuous learning.Ready to Take the Next Step? If you're a Senior Developer looking for a challenging and rewarding role within a modern, forward‑thinking organisation, we'd love to hear from you. Apply now or get in touch for a confidential discussion. Modis International Ltd acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers in the UK. Modis Europe Ltd provide a variety of international solutions that connect clients to the best talent in the world. For all positions based in Switzerland, Modis Europe Ltd works with its licensed Swiss partner Accurity GmbH to ensure that candidate applications are handled in accordance with Swiss law. Both Modis International Ltd and Modis Europe Ltd are Equal Opportunities Employers. By applying for this role your details will be submitted to Modis International Ltd and/ or Modis Europe Ltd. Our Candidate Privacy Information Statement which explains how we will use your information is available on the Modis website

Application Testers, Solutions Architect, C# Developers & IT support engineers London 6-month contracts Hybrid working - 3 days a week onsite Max Rate £415 per day via umbrella (no Flex) Are you passionate about making an impact in financial services? Do you have the technical skills and experience to enhance and apply to our top tier clients working environment? We are recruiting for a range of technical roles for our client at their incredible London, Liverpool street based office. They are looking for Testers, Architects, Developers and Support engineers. The Application tester Is responsible for ensuring the quality and reliability of software applications through comprehensive testing strategies. This role involves designing, developing, and executing manual and automation test scripts to validate functionality, performance, and security across various platforms. The position requires collaboration with development teams to identify defects early, improve test coverage, and streamline the release process. The primary responsibility is to test applications, predominantly developed using MS.NET C# and backed by SQL Server or Oracle databases. Key tasks include understanding business requirements, creating test plans, writing and executing test cases, and performing both functional and non-functional testing using Azure Devops, XRAY and JIRA. It also includes defect tracking and management. Regression, Functional, emergency change and defect testing across systems in production. API testing, data validation, and batch process testing to ensure end-to-end system integrity.Designing and maintaining a test results dashboard to provide real-time visibility into project status, test execution progress, and key quality metrics for stakeholders. C#. Net Developer (Architecture Focused) Deliver, modernise, and support business-critical applications, frameworks and services across our stack (.NET Framework/.NET Core, HTML/CSS/TypeScript/React, Python, SQL Server, Oracle). The role focuses on refactoring legacy systems to reduce technical debt, improve reliability and performance, and embed modern security patterns across the service estate. In addition, the engineer will contribute to greenfield development initiatives, helping design and implement new solutions aligned with our strategic roadmap. Ready to Make a Difference? At our client's organisation, you will enjoy a collaborative and inclusive workplace that values your contributions. This is more than just a job; it's an opportunity to work on innovative projects that make a difference. You'll be part of a team that believes in Responsible Growth, ensuring a positive impact on clients, communities, and shareholders. If you're excited about leveraging your skills in a fast-paced environment and contributing to a groundbreaking technology, we'd love to hear from you! Apply Today! Join us in shaping the future through technology and innovation. Your journey starts here! We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention. Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you

Role: Front End Application Developer Location: Croydon (1 day per week onsite) Duration: 6 Months Day rate: £520 - £570 Inside IR35 Clearance: SC clearance required Role Overview We are looking for a skilled Front-End Application Developer to join a fast-paced engineering team working on modern, user-focused web applications. This role is hands-on and delivery-driven, with a strong emphasis on clean, scalable front-end development using React and TypeScript/JavaScript. You'll collaborate closely with backend developers, designers, and product stakeholders to build responsive, high-quality user interfaces and improve overall user experience. Key Responsibilities Design, build, and maintain front-end applications using React Develop clean, maintainable code using TypeScript and JavaScript (browser-based) Work closely with UX/UI designers to translate designs into high-quality user interfaces Integrate front-end components with APIs and backend services Ensure performance, accessibility, and cross-browser compatibility Contribute to code reviews and front-end best practices Support testing and quality assurance activitiesRequired Skills & Experience Strong experience with React Solid proficiency in TypeScript and JavaScript in the browser Experience building modern, responsive web applications Good understanding of HTML, CSS, and front-end architecture Familiarity with REST APIs and frontend integration patternsNice to Have Experience with Playwright for front-end or end-to-end testing Knowledge of automated testing strategies for UI applications Experience working in Agile or DevOps-driven teams

Location: London (3 days onsite, 2 days remote).After an extremely successful year, a Digital Agency is looking to expand its Web Development team for its growing and varied client base.You will be responsible for working closely with the Project Management & Design team - ultimately creating brilli

Role: Software Developer (React) – Up to £120,000 + Bonus + Package. React as a main language (modern JavaScript / TypeScript).

Full stack development experience using React + Python. React: AG Grid, Charting, WebSockets and data visualisation. We are currently recruiting full stack developers to join a trading technology team at a leading investment firm.

Good development skills and experience with ReactJs. Experience with reactive extensions. Work closely with the other developers in determining and following best development and architecture practice.

React Native Developer - Hybrid - Outside IR35 | React Native | FinTech | JavaScript | TypeScript. React Native Developer - Hybrid - Outside IR35 | React Native | FinTech | JavaScript | TypeScript. They’re looking for an experienced React Native Developer to join the team on a contract basis, cont

Frontend Engineer – React / TypeScript / Next.

Location: London (3 days onsite, 2 days remote).After an extremely successful year, a Digital Agency is looking to expand its Web Development team for its growing and varied client base.You will be responsible for working closely with the Project Management & Design team - ultimately creating brilli

As a Python Developer / Full Stack Engineer (Python Django React) you will receive a competitive package:. Python Developer / Full Stack Engineer (Python Django React) opportunity. Python Developer / Full Stack Engineer (Python Django React) Remote UK to £80k.

We’re seeking an experienced React Native Developer to join our growing team in the facilities management sector. Our stack includes TypeScript, Firebase, Expo, React Navigation, Reanimated and Vision Camera, alongside other high-quality React Native libraries. Collaborate with developers, designe

React: AG Grid, Charting, WebSockets and data visualisation. We are currently recruiting full stack developers to join a trading technology team at a leading investment firm. These roles are best suited for candidates with experience in full stack development using React and Python and particularly

React Native Developer - Hybrid - Outside IR35 | React Native | FinTech | JavaScript | TypeScript. React Native Developer - Hybrid - Outside IR35 | React Native | FinTech | JavaScript | TypeScript. They’re looking for an experienced React Native Developer to join the team on a contract basis, cont

Work closely with the other developers in determining and following best development and architecture practice. Good development skills and experience with ReactJs. Experience with reactive extensions.

Role: REMOTE Lead React Developer (Software Engineer Programmer Developer ReactJS React-JS React. REMOTE Lead React Developer (Software Engineer Programmer Developer ReactJS React-JS React. Strong experience as a Lead React Developer/Software Engineer/Programmer.

We are currently recruiting full stack developers to join a trading technology team at a leading investment firm. These roles are best suited for candidates with experience in full stack development using React and Python and particularly those who have built trading platforms from the ground up. Fu

Developer to work on a number of exciting upcoming projects. Developer (Interactive Installations). Developer (Interactive Installations).

If you are interested in this React Native App Lead position and meet the above requirements please apply immediately. Strong React Native development background.

Extensive experience with React & TypeScript.

We are currently recruiting full stack developers to join a trading technology team at a leading investment firm. These roles are best suited for candidates with experience in full stack development using React and Python and particularly those who have built trading platforms from the ground up. Fu

Full Stack Developer (80% React / 20% Java). Frontend-heavy Full Stack Developer. This is a high-impact role within a complex, state-driven environment, perfect for a React expert who is comfortable dipping into the Java backend when required.