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Role: Web & Mobile Application Developer Location: Weybridge, Surrey (Hybrid – 3 days per week in office)Right to Work: Cannot provide sponsorship Requirements: As this role is within the Financial Services industry, any employment offer will be subject to standard legal checks (Right to Work and Proof of Address), as well as a clear DBS check, an adverse financial credit check, and references from previous employers. Summary of Position We are seeking a talented developer to join our UK-based development team within a fast-growing, dynamic FinTech environment. You will be part of an agile team building advanced solutions for recoveries portfolio management, supporting clients across banking, lending, utilities, and telecoms. Our mission is to empower organisations with innovative technology that drives smarter recoveries and sets new industry standards. As a Web & Mobile Developer, you will take the lead in developing in-house platforms, including both B2B and B2C applications. This role involves hands-on work with mobile and web technologies, collaborating closely with internal teams and external stakeholders. We are looking for someone organised, analytical, and team-oriented—an excellent communicator in English, both written and verbal, with a professional and approachable manner. Key Responsibilities Reporting to the Lead Engineer, you will be required to: • Design, build, and configure web and mobile applications and APIs to meet business and application requirements, • Support existing applications and platforms, • Write testable, scalable, and efficient code and lead code reviews The ideal candidate will be self-motivated with a proven track record across the full software development lifecycle and comfortable working in a dynamic technical environment with an expanding customer base. Essential skills include: • Strong experience with React, C# (.NET), and SQL, • Frontend development expertise: CSS, HTML, Bootstrap, • Experience with APIs and web applications, • Solid knowledge of mobile application development, • Familiarity with programming and security best practices, • Experience in cloud application development (Azure), • Knowledge of coding best practices, • Experience in unit and integration testing, • Proficiency with GitHub and DevOps tools, • Ability to produce clear software documentation, • Strong troubleshooting and support skills, • Excellent knowledge of MS Office products, • Exceptional communication skills in English (written and verbal)

Application Support Engineer Our client is looking for an Application Support Engineer to join them ASAP. The role will be Hybrid working 2 days per week in the office. To be considered for the role, you must have the following essential skills & experience: Key experience & skills • Bachelor's degree in information technology, computer science, or a related field. ITIL Certification and Experience in supporting and administering MS SQL Databases, C# .net applications, • Proven experience in application support, with a track record of troubleshooting and resolving complex technical issues., • Solid understanding of database systems (SQL, MySQL, etc.) and web technologies (HTML, CSS, JavaScript)., • Proficiency in using support tools, incident ticketing systems, and knowledge base platforms to agreed SLA’s, • Excellent analytical and problem-solving skills, with a keen attention to detail., • Outstanding communication and interpersonal skills, with the ability to effectively interact with diverse stakeholders, • Customer-focused mindset with a passion for delivering exceptional support and exceeding client expectations., • Ability to thrive in a fast-paced, dynamic environment and work well both independently and collaboratively within a team., • Knowledge of IT security principles and practices., • Flexible in working outside of core business hours at short notice. Benefits • Annual performance-based bonus incentives, • Full private health insurance through our healthcare partner, Vitality Health, • BUPA Dental Insurance, • 23 days holiday, rising to 26 days per year’s service + all UK Bank Holidays, • Holiday buy/sell scheme, • Employer pension contributions up to 10%, • Employee assistance programme, • Work-life balance - flexible working and hybrid workplace Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted. Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisation We take our obligations to protect your personal data very seriously. Any information provided to us will be processed as detailed in our Privacy Notice, a copy of which can be found on our website

Entity: Technology Job Family Group: IT&S Group Job Description: Yalla is bp’s Internal Developer Platform (IDP), built on Kubernetes. It’s a core part of how we help teams build, ship, and run software with confidence. As a Staff Engineer on the Yalla team, you’ll work at the intersection of software engineering and infrastructure—shaping the experience of developers across bp and influencing how modern systems are built and operated at scale. You’ll play a key role in guiding the platform’s technical direction and supporting the engineers who build it. In this role, you will: * Lead architectural and design decisions for the Yalla platform and set clear engineering standards. * Partner with the head of engineering to shape priorities and ensure the platform evolves in the right direction. * Mentor engineers through design discussions, code reviews, and hands‑on coaching. * Build platform capabilities that help developers work more efficiently, securely, and reliably. * Write production‑ready code in TypeScript, Java, .NET, Python, and Go—and be comfortable learning new languages when needed. * Design and implement REST APIs, along with strong unit test coverage and thoughtful low‑level design. * Troubleshoot issues across infrastructure, networking, and Kubernetes using Linux tools. * Identify repetitive work (“toil”) and automate it using SRE and platform engineering practices. * Build systems with observability in mind so developers and operators have clear insight into how things behave. Core Engineering Skills * Strong coding skills and comfort working with data structures and algorithms. * Experience designing and building APIs. * Ability to apply design patterns in real systems. * A thoughtful approach to testing and quality. Platform & SRE Skills * Understanding of infrastructure and network design, including common failure modes. * Experience spotting engineering toil and automating it. * Deep knowledge of Kubernetes internals—scheduling, networking, controllers, and orchestration. * Ability to debug infrastructure, networking, and Kubernetes issues using Linux tools. * Strong understanding of metrics, logs, and traces, and how to build reliable systems with them. Leadership Skills * Ability to set technical direction and influence platform‑level decisions. * Experience guiding engineers through complex trade‑offs and design choices. * A collaborative approach to mentoring and helping others grow. * Confidence representing the team with senior stakeholders and working across teams. At BP, we support our people to grow in a diverse and exciting environment. We believe that our team is strengthened by diversity. There are many aspects of our employees’ lives that are significant, so we offer benefits to enable your work to fit with your life. These benefits can include flexible working options, a generous paid parental leave policy, excellent retirement benefits, among others. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform crucial job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation. Reinvent your career as you help our business meet the challenges of the future. Travel Requirement Up to 10% travel should be expected with this role Relocation Assistance: This role is not eligible for relocation Remote Type: This position is a hybrid of office/remote working Skills: Agility core practices, Agility core practices, API and platform design, Cloud Platforms, Collaboration, Communication, Configuration management and release, Continuous deployment and release, Creating a high performing team, Database Design, Digital Project Management, Documentation and knowledge sharing, Emerging technology monitoring, Facilitation, Information Security, Mentoring, Metrics definition and instrumentation, NoSql data modelling, Problem Solving, Relational Data Modelling, Risk Management, Scripting, Secure development, Service operations and resiliency, Software Design and Development {+ 7 more} Legal Disclaimer: We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, socioeconomic status, neurodiversity/neurocognitive functioning, veteran status or disability status. Individuals with an accessibility need may request an adjustment/accommodation related to bp’s recruiting process (e.g., accessing the job application, completing required assessments, participating in telephone screenings or interviews, etc.). If you would like to request an adjustment/accommodation related to the recruitment process, please ___. If you are selected for a position and depending upon your role, your employment may be contingent upon adherence to local policy. This may include pre-placement drug screening, medical review of physical fitness for the role, and background checks.

What You'll Be Doing Identify and implement infrastructure and application changes to support Gateway functionality and availability Produce detailed technical designs for change alongside the customer and Programme Manager Work daily with the Solution Owner and Engineering Lead to deliver en

A leading technology firm located in Greater London seeks an experienced Application Security Engineer. This role focuses on conducting application security reviews, designing secure architecture, and leading research initiatives to ensure the safety and privacy of user data.

As an Application Security Engineer (ASE) you will curate and manage the incoming security vulnerability submissions to some of the world's biggest companies' bug bounty programs. We routinely run security programs for cars, IoT devices, embedded systems, mobile applications, and more!. As an ASE at

They need a Security Engineer to join and help automate security processes, influence the architecture, and partner with Cloud and Data teams. They hire people from tech as commonly as from within finance, and they need a Senior Product Security Engineer to join their growing London office. The comp

As a security engineer, applications at WRITER, you'll be building the security foundations that protect the AI systems powering some of the world's most recognizable brands. You'll work at the intersection of application security, AI infrastructure, and developer enablement—partnering with engine

A major UK defence contractor is seeking an Application Design Engineer to support secure Gateway solutions.

A global software firm located in the United Kingdom is seeking an Application Security Engineer who will be key in ensuring secure-by-design principles across applications. Essential experience includes application security, familiarity with security tools, and strong communication skills. The succ

As a Senior Application Security Engineer, you’ll lead the application security practice within the IAG Loyalty security team, taking responsibility for key security KPIs in this area. As IAG Loyalty evolves into a Platform as a Service business, we’re looking for a talented and passionate Senio

The State Street Cyber Security Architecture & Engineering team is seeking an accomplished professional with proven expertise in Application Security (AppSec) and DevSecOps. Assist the development community to triage Dynamic Application Security Testing (DAST) and container scanning vulnerabilities,

The Application Security Engineer will play a key role within the Application Security team, providing hands‑on technical expertise, guidance, and enablement to development teams across Featurespace. Demonstrable experience in application security engineering, secure development, vulnerability man

If you’re an AppSec Engineer who’s been through hypergrowth and wants to build security in a fast-moving AI company, I want to speak with you. You’ll be working at the intersection of security + engineering, building tooling and secure by default patterns that help teams ship at speed includin

A leading fintech company in the UK is looking for a Security Engineer to enhance their product's security posture. The role includes driving security improvements, performing vulnerability assessments, and collaborating with development teams. Ideal candidates will have expertise in programming, De

The Application Security Engineer will play a key role within the Application Security team, providing hands‑on technical expertise, guidance, and enablement to development teams across Featurespace. Demonstrable experience in application security engineering, secure development, vulnerability man

Technical experience across other Privacy or Security disciplines, such as Application Security or Privacy. Application Security Engineer, Privacy. Your primary responsibility will be to deal with privacy vulnerabilities by designing and guiding Software Engineers through remediations, learning from

We're looking for an Application Security Engineer to join the ElevenLabs Security team. Identify, prioritise and remediate application security vulnerabilities, working directly with engineers and contributing to fixes where required, across the entire stack. Ship new security features which direct

The Security Department oversees security, compliance, GRC, and security operations for all Agoda. Senior/Staff Application Security Engineer (Bangkok based, relocation provided). Conduct application security reviews and perform penetration testing, ensuring alignment with compliance standards.

As an Application Security Engineer, you will be hands‑on and have wide-ranging impact for the security of Palantir:. This includes static and dynamic code analysis, security scanning, investigation of security reports from InfoSec, our bug bounty program, or other trusted partners, and direct wor

Trimble is seeking a highly experienced and passionate Senior Application Security Engineer to lead our Software Composition Analysis (SCA) and Static Application Security Testing (SAST) initiatives, with a primary focus on driving the strategic implementation and optimization of our SCA tool. This

A leading home improvement retailer based in Paddington, London, is seeking an Application Security Specialist to enhance its digital platforms. In this senior role, you will ensure web, mobile, and API applications are kept secure from evolving threats, while promoting security within development p

As an Application Security Engineer (ASE) you will curate and manage the incoming security vulnerability submissions to some of the world’s biggest companies’ bug bounty programs. At Bugcrowd, we handle application security assessment at an epic scale. As an ASE at Bugcrowd you will be exposed t

A fintech company based in Greater London is looking for an experienced Application Security Engineer. The successful candidate will ensure secure development practices, drive security strategy, and manage security controls across cloud environments. This role requires expertise in AWS security and

A leading technology firm in defence is seeking an Application Security Engineer (Technical SME) for a hybrid role in London or Bristol. Candidates should have a background in engineering, a strong problem-solving ability, and excellent communication skills.

Whether engineering a system to address a technical security hurdle, protecting our customers' data, or consulting on a wide range of security topics, you are empowered to engage and lead cross‑functionally. A large part of Thought Machine product security function is a greenfield challenge, we ar

Application Security Engineer (Technical SME). Background in systems engineering, electronics, aerospace, mechanical engineering, or related technical field. Opportunities to work on innovative, high-impact defence programmes that support national and allied security.

We are seeking a Senior Application Security Engineer to enhance our team and elevate our application security testing. Application Security Penetration Testing SDLC OWASP Security Automation. Deliver security products and consult with DevOps, supporting automated security testing in CI/CD pipelines

A leading global e-commerce company is seeking an experienced Application Security Engineer to join their team in Greater London. The role involves conducting security reviews, designing secure architectures, and collaborating with development teams to enhance security practices. Join a diverse and

Application Security Engineer, Amazon Application Security. The Application Security team focuses on working with builders to provide experiences that customers can trust, solving complex problems to protect the safety, security, and privacy of billions of lives worldwide. Conduct application securi

A leading fintech firm is looking for a Security Engineer to enhance product security by implementing cutting-edge measures against security risks. The ideal candidate should have expertise in programming, familiarity with web application security, and experience in a DevOps environment. This role i

A leading global payment technology company is seeking an Application Security Engineer to enhance application security across development teams. The ideal candidate will have a degree in Computer Science or related field along with experience in application security engineering and familiarity with

Proven experience as an Application Security Engineer or in a similar role focused on securing applications. Keeping up to date with the latest security threats, vulnerabilities, and trends in application security. Experience with security tools such as Burp Suite, SonarQube, Checkmarx, and other ap

A leading digital payments platform is seeking a skilled security professional to strengthen application security through rigorous testing and direct collaboration with engineering teams. Experience in web and mobile application security and a passion for emerging technologies will be key to your su

You'll work at the intersection of application security, AI infrastructure, and developer enablement—partnering with engineering teams to embed security into every line of code while ensuring our platform remains both powerful and trustworthy. As a security engineer, applications at WRITER, you'll

Will collaborate across Security, Engineering, Legal, and Compliance to ensure that systems, processes, and data handling meet EU regulatory standards and Strava’s global security expectations. We work across all security domains, including, but not limited to, product security, vulnerability mana

A leading payments technology company is seeking an Application Security Engineer to enhance application security and provide technical guidance across teams. This hybrid role focuses on application vulnerability support, secure development practices, and compliance with security standards. Ideal ca

As an Application Security Engineer, you will be the go-to expert for ensuring secure development practices and implementing robust security controls across cloud and application environments. As an Application Security Engineer, you will make a real impact by driving secure engineering practices, i

Whether engineering a system to address a technical security hurdle, protecting our customers' data, or consulting on a wide range of security topics, you are empowered to engage and lead cross‑functionally. A large part of Thought Machine product security function is a greenfield challenge, we ar

As a Security Engineer focused on Application Security, you will strengthen Neko Health’s software security posture within a regulated healthcare environment. Security Engineer, Application Security. You will lead secure development practices, embed security into engineering workflows, and partner

As a Senior Application Security Engineer, youll own and evolve how application security is designed, built, and operated across our products-ensuring banking-grade security without slowing teams down. Working closely with product, platform, and security partners, youll help shift AppSec from re

A healthcare technology company is seeking a Security Engineer specializing in Application Security to enhance their software security posture. Ideal candidates will have experience with application security tools and secure coding principles. The role involves driving secure development practices,

As an Application Security Engineer, you’ll play a key role in ensuring secure-by-design principles are applied across web and API-driven applications. Hands-on experience with security tooling (e. Relevant security certifications (e.

We are looking for an experienced application security engineer to join the Application Security team. The Amazon Application Security team focuses on working with our builders to provide experiences that our customers can trust. Our engineers invent, build, and sometimes break things to make them e

Support and help coordinate application‑layer security incidents and escalations, working closely with Engineering, Support, and other stakeholders to investigate, contain, and learn from issues. Vulnerability management & security tooling expertise, with a proven track record of implementing and