Trabajos react native en Reino Unido - Page 3

This role involves delivering high-quality React Native solutions and applying your software engineering expertise across teams.

Contract Lead JavaScript Developer Outside IR35 £500–£550p/d Fully Remote (UK) ⏳ 12 Months Opus is partnered with an early‑stage start‑up embarking on a true 0→1 platform build. They’re looking for a Contract Lead JavaScript Developer to take ownership of the architecture, define the tech stack, and build a high‑performing engineering team from the ground up. This is a hands‑on technical leadership role where you’ll shape the platform, influence product direction, and be central to discovery through to delivery. If you thrive in ambiguity, enjoy greenfield builds, and want genuine ownership — this one’s for you What You’ll Be Doing Leading a full 0–1 build for a start‑up platform Defining and owning the JavaScript-based tech stack Architecting a scalable, cloud‑native system Hands‑on development across frontend & backend Playing a key role in the discovery phase, shaping technical decisions Driving best practices around architecture, testing, and delivery Hiring and mentoring engineers + surrounding skillsets as the platform scales Working closely with founders, product, and stakeholders ️ Tech You’ll Be Using (or Defining) React Next.js Node.js TypeScript AWS Terraform Modern CI/CD, testing, and cloud-native tooling(You’ll have autonomy to shape and evolve this stack.) ✅ Ideal Experience Senior / Lead JavaScript experience on greenfield builds Strong React + Node + TypeScript background Proven system architecture experience Comfortable operating in start‑up / fast‑moving environments Experience scaling teams or mentoring engineers Confident making technical decisions with long-term impact Apply or send your CV to (url removed)

My Banking client is seeking to recruit a Senior Full Stack Developer (React & .NET Core) on an initial 6 month based in London. It is hybrid and will require 3x days onsite per week. About the Role We are seeking a highly experienced Senior Full Stack Developer with deep expertise in React JS on the front-end and C# .NET Core on the backend. The ideal candidate will have substantial hands-on experience developing scalable applications, strong exposure to cloud-native architectures, with experience in the financial sector. Experience with CI/CD, microservices, and event-driven architectures is essential, and knowledge of Python (pyspark) for data-driven workflows is advantageous Key Responsibilities Design, develop, and maintain full stack applications using React JS, C#.NET Core, and supporting technologies. Build high-performance backend services, RESTful APIs, and microservices with focus on scalability, maintainability, and resilience. Develop responsive, modular, and accessible UI components using React JS and modern JS/TS patterns. Collaborate closely with business stakeholders and risk, Regulatory Reporting and Finance domain experts to deliver solutions in these domains. Have a strong understanding of Power BI dashboards, data models, and analytical reports for business users. Work with DevSecOps to implement and optimize CI/CD pipelines, ensuring robust automated testing, deployment, and monitoring. Architect and contribute to event-driven and distributed system designs using technologies such as Kafka, Event Hub, or similar. Drive engineering best practices: code reviews, unit/integration testing, performance tuning, documentation, security scanning Contribute to cloud migration and modernization initiatives, especially in Azure or AWS environments. Mentor junior developers and collaborate within a cross-functional agile team. Required Skills & Experience: Technical Skills Extensive professional software development experience. Front-end: Strong proficiency in React.js, JavaScript/TypeScript, Redux/RTK, hooks, and modern UI patterns and architecture. Micro front-end experience is key having delivered micro front-end architectures, and creating a reusable component library Experience with Telemetry and observability of front-end applications Back-end: Expertise in C# .NET Core, C#, REST APIs, Web APIs, and microservices-based development. Experience in transforming monolithic applications into composable microservices, or modular monoliths is a plus. Python (pyspark): Some hands-on experience with distributed data processing, data pipelines, and analytic transformations. Power BI: Some experience developing dashboards, data models, DAX calculations, and enterprise-grade BI solutions. Strong understanding of data modeling, performance tuning, and governance in Power BI. Architecture: Strong knowledge of microservices, API design, event-driven architectures, and distributed systems. DevOps / CI/CD: Experience with Azure DevOps, Gitlab, GitHub Actions, or similar. Strong understanding of automated builds, testing, deployment, and monitoring

Lead Mobile Software Engineer – React Native (Hybrid) London (2 days onsite) The Role Own the evolution of a large-scale mobile platform as it transitions from a complex brownfield native estate to React Native. You’ll define architecture, guide tooling decisions, and lead a high-performing team—balancing speed, quality, and scalability in a real-world, high-traffic environment. What You’ll Do Lead React Native and hybrid mobile strategy across iOS & Android Navigate brownfield architecture and modernise legacy systems Decide when to go hybrid vs native Drive architecture, POCs, and integration (Swift/Kotlin + React Native) Shape tools, standards, and engineering practices Build, lead, and measure a high-performing team Remove blockers and accelerate delivery What You Bring Strong React Native experience at scale Background working in complex/brownfield environments Solid JavaScript/TypeScript + React skills Working knowledge of Swift and Kotlin Proven leadership and team-building experience Bonus Retail or high-scale consumer apps Native module bridging / WebView experience Big impact. Complex systems. Real ownership

Role: C#/.NET Full Stack Engineer Base Locations: London, Manchester, Newcastle or Glasgow Working Pattern: Hybrid, with flexibility for client assignments Overview We are seeking experienced Full Stack Engineers to support the delivery of modern digital solutions across a range of transformation programmes. This role sits within a multi-disciplinary engineering and consulting environment, working closely with architects, designers, product teams and client stakeholders. Key Responsibilities Design and build applications using ASP.NET Core, C# and modern JavaScript frameworks Develop responsive, accessible front-end interfaces using React, Angular or Blazor/Razor Contribute to cloud-native architectures on AWS or Azure Implement modern DevOps practices including CI/CD pipelines and automated testing Collaborate within agile teams to deliver high-quality, scalable software Integrate with relational and non-relational databases where requiredRequired Skills & Experience Strong commercial experience with ASP.NET Core and C# Experience building front-end applications using modern frameworks Cloud experience (AWS/Azure) CI/CD (GitHub, GitLab, Azure DevOps or Jenkins) Proficiency with Git workflows Experience working in agile environmentsDesirable Experience Docker, Docker Compose Terraform or other IaC tools EF Core, relational DB experience NoSQL (MongoDB, Cosmos DB) Microservices in Java/JS/TS Experience with LLM/AI integration frameworks (e.g., LangChain) Familiarity with modern design systemsAdditional Information A flexible benefits package is available to tailor to personal needs Applicants must have valid UK work authorisation This role may require travel to client sites

Solutions Architect, Central London An exciting Solutions Architect role with a salary of £100,000 plus bonus and career progression opportunities for a permanent role based in our Marylebone, London office. We are offering a fantastic opportunity for an experienced Solutions Architect at a market leading, dynamic and renowned property, technology and innovative, technology-based car parking company. Our client is a market leading, renowned UK business, established over 50 years ago. The company operates over 3500 sites across the UK and Ireland providing specialist services to a wide range of blue-chip clients. The role We are seeking technical polyglots who enjoy both technical architectural design, hands-on coding and peer reviews, though also like the idea of the equally important social/client-facing aspect of the role. The role is responsible for defining the development architecture across a blend of in-house bespoke solutions and 3rd party products and helping to shape the longer-term strategic development architecture for the organisation. It will also involve understanding key business processes and consider approaches to delivering the required capabilities, including identifying and assessing new technologies. You will be involved in designing, developing, and deploying AI-powered automation solutions that can transform operational processes at scale. You will be assisting the head of business solutions and other architects on developing architecture strategy and target architecture model. You will be working closely with delivery team members to coach and promote best-practice solution development architecture as well as supporting business analysts and product owners in planning and story-mapping for new development. You will act as technical design authority (TDA) for delivery of technical stories and produce technical documentation artefacts to support the delivery process. Main Responsibilities Duties will include: ·The design and implementation of best-in-class software architecture ·Produce and communicate clear technical designs to guide and contextualise solution development across products, services, projects, and systems, including applications, technologies, processes, and information which meet the business strategic needs. Create and maintain the architecture models and related reference data in our enterprise repository as part of your normal project tasks. Provide solution architecture deliverables, including current and target state architecture, standard definitions, reference models, architecture designs and patterns·Ensure that all work undertaken by you and your colleagues is of the highest quality and meets the agreed standards for software delivery. Support product managers in product decisions to maintain, refresh or retire services, or systems, including applications, technologies, processes, and information.·Participate actively in all team ceremonies (daily stand-up, team retros, sprint reviews, story-mapping, backlog refinement) helping the entire delivery team be the best that they can. Essential Skills: ·C# .NET Core, REST API Design and Development, API Management ·Document or No-SQL database solutions (particularly Elasticsearch) ·Messaging and microservices based architecture (Azure Service Bus, Azure Functions) ·Formal architecture documentation and diagramming techniques (BPMN, UML, Wireframing) ·Experience with AI tools and frameworks such as Claude code. ·Test and behaviour driven development strategies (TDD, BDD, Gopher) ·Agile Delivery Methodologies, SCRUM, SCRUMBAN ·Working in an agile environment using JIRA and Confluence ·Experience working in a data-centric organisation Desirable Skills ·React front-end development ·React. Native cross-platform mobile application development ·Android development (Java/Kotlin/Dagger2) ·Image Processing, ANPR (automated number plate recognition) and OCR library implementations ·Exposure to process modelling, for example in BPMN ·IoT relay control systems ·Networking security (firewalls and network traffic control) Forward Assist Recruitment is operating as an employment agency. Forward Assist Recruitment is an Equal Opportunities employer; we welcome applicants from all backgrounds

Job Title: Senior Full Stack Developer (React & C#.NET) Contract Length: 12 Months Location: London - 3 Days a week Daily Rate: Circa £650/Day (Inside IR35) About the Role Join our dynamic team as a Senior Full Stack Developer, where your expertise in React JS and C# .NET Core will shine! We are looking for a tech-savvy professional with a passion for building scalable applications within the financial sector. This is an exciting opportunity to work with cloud-native architectures and cutting-edge technologies. If you thrive in a collaborative environment and are eager to make an impact, we want to hear from you! Technical Skills Front-end: Strong proficiency in React.js, JavaScript/TypeScript, Redux/RTK, and modern UI patterns, develop framework is essential Back-end: Expertise in C# .NET Core, REST APIs, and microservices-based development is essential Python (pyspark): Experience with data pipelines and analytics is a plus. Power BI: Familiarity with developing dashboards and data models. Architecture: Knowledge of microservices, API design, and event-driven architectures. DevOps/CI/CD: Experience with Azure DevOps, GitLab, GitHub Actions, or similar tools. Cloud Platforms: Proficient in Azure or AWS (Azure preferred). Databases: Strong skills in SQL Server, PostgreSQL, or other relational databases. containerisation: Experience with Docker and Kubernetes. Key Responsibilities Design & Develop: Create and maintain full stack applications using React JS and C#.NET Core. Build Services: Develop high-performance backend services and RESTful APIs with a focus on scalability and resilience. Create UI Components: Craft responsive and modular UI components using React JS and modern JavaScript/TypeScript patterns. Collaboration: Work closely with business stakeholders and domain experts in Risk, Regulatory Reporting, and Finance. Power BI Expertise: utilise your knowledge of Power BI to develop dashboards and analytical reports. CI/CD Implementation: Collaborate with DevSecOps to optimise CI/CD pipelines, ensuring automated testing and deployment. Architecture Contribution: Contribute to event-driven and distributed system designs using technologies like Kafka or Event Hub. Mentorship: Guide junior developers and foster a collaborative atmosphere within a cross-functional agile team. Soft Skills A strong engineering mindset with a relentless curiosity. Excellent analytical and problem-solving abilities. Exceptional communication skills to interact with both technical and non-technical stakeholders. An agile mindset with experience in Scrum/Agile environments. Ability to work independently and lead technical solutions from start to finish. Why Join Us? Work on innovative projects that make a difference in the financial sector. Collaborate with a talented team in a vibrant environment. Enjoy a competitive daily rate and flexible working arrangements. If you are ready to take your career to the next level and contribute to exciting projects, apply now! We can't wait to meet you! 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

Full Stack Developer– London | Up to £60k (Remote Working) Hexwired has partnered with a company who are a leading company in the Software sector. They are looking for a Senior Full Stack Developer who will be building and maintaining the companies platforms. Although you will be working in a team you should be able to work under your own steam. 4+ years experience developing web and mobile applications using for this role: • JavaScript, • Node.js, Next.js, Express.js, • React/React Native, • .Net 4.8, 9/10, • C#, • HTML/CSS, • API Restful Services The salary for this Full Stack Developer role will be up to £60,000 per annum. The company are rapidly expanding and are at the forefront of their industry. They are looking to pay circa up to £60k dependent on experience along with an excellent benefits package. If you’re interested in this Full Stack Developer in London, please apply. For more information on this role, or any other jobs across; Embedded, C++ programming, Embedded Linux, Golang Development, Machine Learning, Data Science or Simulation contact us today

Senior Full-Stack Web Application Developer Role: Senior Web Application Developer (Full-Stack) Specialism(s): eCommerce, ASP.NET MVC 5, C#, React, Migrations, Microsites, Cloud-Native, HTML5/CSS3/JavaScript, API, CI/CD, IoC Containers, Agile Type: Contract, Daily Rate Duration: 3+ Months Location: London Pay Rate: £450 - £525 per day (Inside IR35 - via Umbrella) Start: ASAP/Urgent Senior Web Application Developer (Full-Stack) CPS Group UK are delighted to be working with a leading, globally recognized eCommerce brand to appoint a seasoned Senior Full-Stack Web Application Developer to play a key role in the migration of their eCommerce platform and microsites into ASP.NET MVC5 framework, along the roadmap towards a cloud-native architecture. The Senior Web Application Developer will be responsible for designing, building, and maintaining scalable, secure web applications that deliver complex solutions seamlessly across multiple platforms. high standards, attention to detail, and a forward-thinking mindset are required - helping shape coding best practices, modern coding standards, and supporting the journey toward a fully cloud-ready environment. Role Requirements • Develop and maintain complex web solutions using ASP.NET MVC 5, C#, and React * Support migration activities, ensuring clean architecture, scalable design, and efficient implementation * Produce secure, maintainable, scalable, and fault-tolerant code following SOLID principles and OO design patterns * Contribute to front-end development using HTML5, CSS3, JavaScript, and modern React components * Participate in architectural discussions and propose improvements * Participate in code reviews, mentoring team members and ensuring consistency and maintainability * Manage source control, branching, and deployments using GitLab or Azure pipelines * Integrate and maintain third-party services and APIs * Ensure smooth and stable release cycles across multiple websites and environments * Deliver high-quality, secure, and scalable code aligned with architectural standards Required Skills & Experience • Extensive development experience with a strong track record in bespoke eCommerce and enterprise web applications projects * Proven expertise on C#, ASP.NET MVC 5, SQL Server, Entity Framework * HTML5, CSS3, JavaScript, jQuery, and React experience. * Strong knowledge of Object-Oriented Programming, SOLID principles, and common design patterns. * Experience working with RESTful API design and integration; SOAP WebServices and XML/XPath * Skilled in using IoC containers (Autofac, Ninject) and unit testing frameworks * Experienced with CI/CD and DevOps pipelines (GitLab, Azure DevOps, TeamCity) * Proven experience working in Agile environments7 * Understanding of application and database performance tuning, troubleshooting, and optimization techniques. * Familiarity with enterprise CMS platforms (e.g., SDL Tridion) For more information or immediate consideration for this opportunity, please contact Charlie Grant at CPS Group UK on (phone number removed) or email (url removed) By applying to this advert you are giving CPS Group (UK) Ltd authority to hold and process your data for this specific role and any other roles we may deem suitable to you over time. We will not pass your data to any third party without your verbal or written permission to do so. All incoming and outgoing calls are recorded for training and compliance purposes. CPS Group (UK) Ltd is acting as an Employment Agency in relation to this vacancy. Our new privacy policy can be found here (url removed) src="(url removed)

Mobile Architect / 6 months / Fully remote / £450 - £520pd (Inside IR35) I am currently looking for a Mobile Architect to join a consultancy client of ours supporting a global FS company on a 6 month initial contract. This can be completed on a remote basis and has been determined inside IR35. Key skills & experience needed: Provide architecture advice and guidance to the mobile product team Work on high level design, governance and support across the team Report progress to portfolio architect Ideally come from an engineering back ground an able to converse effectively with the mobile engineering team Technical experience across mobile technologies such as IOS, Android, React Native, Flutter For this position we are looking for someone to start asap, so ideally you will be available within a maximum of 2 weeks notice. If interested, please apply with your latest CV and I will be in touch to discuss in more detail. Best, Connor