1 to 25 of 104 API Development Jobs in London

Senior .Net Developer, C#/VB.Net, API, SQL, NW London to £85K A Back End Developer is required to join this established financial software house based in North London. They work with some of the leading brands in retail and media, offering financial management systems developed in house … required with expertise in Visual Basic .NET, C#, SQL Server, and SAP Business One integration. The ideal candidate should have strong skills in RESTful API development, database optimization, and Azure DevOps pipeline management. Knowledge of API security, CI/CD automation, and Swagger documentation is recommended. Responsibilities ...

Software Engineer - API Development with Python London Certain Advantage are recruiting on behalf of our global client for a Software Engineer to work on a deal entry portal that feeds Enterprise Risk Management Systems (ETRMs). As a Software Engineer contractor you'll be expected to work independently … within defined work streams; using your understanding of large-scale application architecture and design, API development skills using Python, to design and develop solutions, as well as solve functional and technical problems regarding assigned applications and Infrastructure. You'll be expected to communicate and engage effectively with internal ...

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 … 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 ...

Full-Time About MAXTRAMAX MAXTRAMAX delivers innovative technology solutions that help organizations improve efficiency, security, and operational performance. Our expertise spans Artificial Intelligence, Software Development, Digital Transformation, Network Infrastructure, Cybersecurity, and Defense & Security Technology. We are expanding our AI capabilities and are seeking an experienced AI Software Engineer … implement emerging AI technologies. Collaborate with software developers, data engineers, and project stakeholders. Prepare technical documentation and architecture specifications. Support the full software development lifecycle using Agile and DevSecOps practices. Required Qualifications Bachelor's or Master's degree in Computer Science, Artificial Intelligence, Software Engineering, Data Science, Mathematics ...

Engineering community to develop our data and MLOps capability infrastructure Strong experience in software engineering with proficiency in a language such as Python for API development, data engineering and automation tasks A background in working with storage solutions such as PostgreSQL, MySQL, and BigQuery Experience in API … development using tools such as FastAPI or Flask , enabling data access and integration across systems Hands-on experience with dbt or Dataform, building modular, tested data models Experience orchestrating data pipelines with a modern orchestrator such as Dagster, Airflow, or Prefect Solid knowledge of cloud platforms (GCP and/ ...

will play a pivotal role in architecting and developing our next-generation web application and API. This role requires technical leadership, hands‐on development, and mentoring of junior developers. You will drive the adoption of best practices, ensuring scalability, security, and performance. If you are passionate about software development … eligible for visa sponsorship only for candidates that are already based in the UK. Key Responsibilities Technical Leadership: Lead the technical design and development of scalable, secure web applications and APIs, driving best practices across the development lifecycle. Architecture & Design: Oversee system architecture decisions, ensuring alignment with business ...

with some Pre-Sales experience to be based at the Company's Central London Offices. You will extensive and deep Expertise in following Application Development areas: Expertise in application architecture using modern technologies such as cloud native development, 12 factor Apps, microservices, serverless, API management, Kafka, etc. … Deep knowledge of Microservices, Containers, REST APIs development, API Management tools (e.g. MuleSoft, Apigee), Kafka Solution architect with broad expertise in wide range of digital technologies in areas of application platform development, web and mobile development, cloud, integration, security, etc. Application dev experience with at least ...

Salary range: £57,600 - £92,400 Contract type: Permanent What will you be doing? You will work as a software engineer specialising in Android development within a cross-functional Agile development team. You'll be working collaboratively with other highly skilled Android Engineers as well as iOS engineers … Quality Engineers, Designers and User Experience specialists on challenging customer-facing projects. As a Staff Engineer you will have responsibility for the development approach and provide technical assurance on complex IT projects. You will also use your knowledge of software engineering to support shaping of new projects and support ...

Salary range: £62,900 - £92,400 Contract type: Permanent What will you be doing? You will work as a software engineer specialising in Android development within a cross-functional Agile development team. You’ll be working collaboratively with other highly skilled Android Engineers as well as iOS engineers … Quality Engineers, Designers and User Experience specialists on challenging customer-facing projects. As a Staff Engineer you will have responsibility for the development approach and provide technical assurance on complex IT projects. You will also use your knowledge of software engineering to support shaping of new projects and support ...

looking for a Senior Full-Stack Developer to play a pivotal role in leading the design, development, and deployment of complex software solutions. You will architect and maintain data engineering pipelines, backend services, APIs, demonstrate consideration for design and UI/UX when building user interfaces, delivering reliable … databases, and containerisation (Docker). If this sounds of interest, we can't wait to hear from you! KEY RESPONSIBILITIES: Contribute to the design, development, and deployment of robust software solutions, promoting best practices throughout the software development lifecycle Contribute to architecting and maintaining complex data engineering pipelines ...

GenAI projects.As a Senior Developer, you will be at the driving innovation and delivering cutting-edge solutions. Your expertise will contribute to the development of our platform, shaping its capabilities and providing impactful solutions.Join our dynamic team and be part of a collaborative environment that fosters continuous learning … creativity. If you are passionate about machine learning, AI, and want to contribute to the platform capability development for our whole organization, we invite you to apply for the position of Technology Architecture in our AI Enablement Team.**Job responsibilities:*** Software Development: Design, develop, and maintain applications. Write ...

DescriptionRole Summary :We are seeking an experienced Java API Developer to join our Digital Asset development team. This is a hands‐on engineering role responsible for building and operating secure, resilient API services that power institutional digital asset capabilities—spanning digital custody, tokenization enablement, digital transfer agency … services and REST APIs that support digital asset product flows (custody, tokenization, TA, digital cash/settlement) and integrate cleanly into the broader platform.Build API services that participate in the platform’s centralized integration approach—supporting client/app onboarding and app-to-service integrations via an Integration ...

Description Role Summary : We are seeking an experienced Java API Developer to join our Digital Asset development team. This is a hands-on engineering role responsible for building and operating secure, resilient API services that power institutional digital asset capabilities-spanning digital custody, tokenization enablement, digital transfer … REST APIs that support digital asset product flows (custody, tokenization, TA, digital cash/settlement) and integrate cleanly into the broader platform. Build API services that participate in the platform’s centralized integration approach-supporting client/app onboarding and app-to-service integrations via an Integration ...

production‐grade software. This role is ideal for someone who enjoys working at pace in secure, technically challenging environments, with opportunities to contribute across API development, cloud‐native services and data integration. Typical responsibilities include: Developing software services using languages such as Java, JavaScript, TypeScript, Python or C++ … platforms, data services and streaming technologies Implement monitoring, logging and observability to support live service operation Support secure deployment and operation of applications across development, test and production environments Skills Required Experience working within the UK Security & Intelligence, defence or other secure government environments Strong knowledge of modern software ...

that enhance SBS products and client offerings. The ideal candidate will combine strong software engineering fundamentals with applied AI/ML expertise, enabling the development of scalable, production-grade AI systems in a regulated financial services environment. Location: UKor EU Hybrid/Remote: Remote (Ocasionaltravel required) Responsibilities AI Solution … Development Design, build, and deploy AI/ML models and intelligent applications across SBS platforms Develop solutions leveraging: Machine Learning (ML) Natural Language Processing (NLP) Generative AI (GenAI/LLMs) Translate business requirements into technical AI solutions that deliver measurable impact Model Deployment &MLOps Implement and manage ...

business needs. Salary range: £52,000 - £77,000 Contract type: Permanent Key Responsibilities You will work as a senior software engineer specialising in Android development within a cross-functional Agile development team. You’ll be working collaboratively with other highly skilled iOS Engineers as well as Android engineers … Analysts, Quality Engineers, Designers and User Experience specialists on challenging customer-facing projects. As a Senior iOS Engineer you will have responsibility for the development approach and provide technical assurance on complex IT projects. You will also use your knowledge of software engineering to support shaping of new projects ...

automation projects, helping to develop and improve the technology that supports the wider business.You will have the opportunity to work across the full development lifecycle, from designing and building new services through to testing, deployment and ongoing improvements. Working directly alongside the IT Manager and wider business, you will … your work and the opportunity to see the impact of the solutions you deliver.There will also be a strong focus on AI-assisted development, with the business actively using AI tools to improve development processes and automate manual tasks.Developer Requirements1-3 years' commercial software development experienceJavaScript, HTML ...

genre, handicap, origine, croyance religieuse et orientation sexuelle ou tout autre critère. Software Engineer – Edenred PayTech Location: London/Swindon Department: Technology & Product Development About Edenred PayTech Edenred PayTech is a leading global e-money institution, processing over €100bn in payments annually across more than 30 countries. We power … contribute to the design, implementation, and maintenance of new features and platform enhancements. You will work as part of a collaborative team, following best development practices to deliver high-quality software that meets business needs. Key Responsibilities Participate in the design, development, and testing of platform features adhering ...

operational teams, you'll help shape technical solutions while contributing to a culture of engineering excellence. You'll be involved in the full software development lifecycle, from architecture and design through to deployment and operational support, ensuring solutions are scalable, resilient and fit for purpose. Key responsibilities include:Designing … business requirements into robust technical designsContributing to software and system architecture decisionsBuilding and supporting high-performing CI/CD pipelines and engineering practicesApplying modern development standards, clean code principles and secure-by-design approachesSupporting testing, quality assurance and continuous improvement initiativesCollaborating with product managers, designers, security teams and engineers ...

operational teams, you'll help shape technical solutions while contributing to a culture of engineering excellence. You'll be involved in the full software development life cycle, from architecture and design through to deployment and operational support, ensuring solutions are scalable, resilient and fit for purpose. Key responsibilities include … robust technical designs Contributing to software and system architecture decisions Building and supporting high-performing CI/CD pipelines and engineering practices Applying modern development standards, clean code principles and secure-by-design approaches Supporting testing, quality assurance and continuous improvement initiatives Collaborating with product managers, designers, security teams ...

internet—the fundamental infrastructure that allows digital platforms to verify age and manage compliance globally without friction. Our core platform, anchored by the Compliance Development Kit (CDK) and AgeKit, is the trusted engine for the world’s largest game publishers and digital ecosystems. We replace fragmented, manual compliance with … unified API that handles age verification, parental consent, and regulatory logic across 200+ markets. Backed by top-tier venture capital firms like a16z and Lightspeed, k-ID is entering a phase of growth to define the standard for global digital safety. About The Role As an Forward Deploy Engineer ...

modernising its technology platforms and adopting agile, cloud-native solutions. We are seeking a Tech Lead to help drive this transformation and lead the development of scalable, secure, and high-performing systems. **Role Overview**As Senior software engineer you will be responsible for the technical leadership of a cross … functional agile team. You will guide software architectural decisions, contribute hands-on to development, mentor engineers, and ensure the delivery of robust software aligned with business objectives. **Key Responsibilities*** Lead the design and development of enterprise-grade applications using Java and related technologies* Define and enforce agreed coding ...

modernising its technology platforms and adopting agile, cloud-native solutions. We are seeking a Tech Lead to help drive this transformation and lead the development of scalable, secure, and high-performing systems. Role Overview As Senior software engineer you will be responsible for the technical leadership of a cross … functional agile team. You will guide software architectural decisions, contribute hands-on to development, mentor engineers, and ensure the delivery of robust software aligned with business objectives. Key Responsibilities Lead the design and development of enterprise-grade applications using Java and related technologies Define and enforce agreed coding ...

stakeholder exposure and the opportunity to influence how AI is adopted across a prestigious financial services environment. Key Responsibilities Lead the technical design and development of AI-driven proof-of-concepts, prototypes and lightweight applications that demonstrate measurable business value. Work directly with senior stakeholders, business teams and technology … software engineering practices. Design and implement integrations across multiple enterprise data sources, systems and applications, establishing scalable and reusable engineering patterns. Leverage AI-assisted development tools, including GitHub Copilot, to accelerate engineering delivery and experimentation. Collaborate with platform engineering, architecture, security and governance teams to ensure solutions align with ...

expert in generative AI and financial technology We'll Count on You To: Design and build transformative ML systems – Lead the development of advanced generative AI solutions, agentic workflows, RAG architectures, and intelligent platforms using PyTorch, modern ML frameworks, and large language models; write production-quality code that scales … understanding of MLOps, containerization (Docker, Kubernetes/AWS EKS), cloud platforms (AWS/Azure including Bedrock, SageMaker, Azure AI Search), workflow orchestration (Airflow), and API development for ML systems Software development fundamentals – Deep understanding of automated testing, source version control, code optimization, software architecture, and building scalable ...