1 to 25 of 99 API Development Jobs in London

/CD processes • Investigate and resolve technical issues, defects, performance problems and production incidents • Address security, accessibility, privacy, resilience, scalability and performance throughout the development lifecycle • Contribute to technical documentation, knowledge sharing, development standards, patterns and best practices • Support an inclusive engineering culture and mentor colleagues where appropriate … Experience with RESTful APIs and integration with external or internal services Experience with automated unit and integration testing Experience using Git and modern software development workflows Understanding of clean code, modularity, maintainability, version control and design patterns Experience diagnosing and resolving application defects, performance issues and production problems Understanding ...

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 ...

Full Stack Mobile Engineer About the Role We are seeking an experienced Full Stack Mobile Engineer to join our mobile application development team. You will work closely with business stakeholders, product owners, designers, testers and fellow engineers to deliver high-quality digital products used by thousands of learners … driving instructors across the UK. The role has a strong focus on Java backend development, REST API development, database integration and end-to-end software delivery. Experience with Flutter is desirable, while knowledge of AWS and Sitecore would be advantageous. You will take ownership of features from ...

define technical requirements, make trade-offs and ensure that solutions are both sustainable and maintainable in the long term. Experience with mobile app development, particularly React Native, is a strong plus and a passion for promoting wellbeing and reducing stress through technology is essential. This role requires wearing many … including monitoring and maintenance Passionate about building innovative solutions and thriving as an individual contributor (IC) within a dynamic team Experience with mobile app development (React Native) is a plus, especially for those with strong web frontend experience An interest in reducing stress and promoting wellbeing through technology Experience ...

Focus on greenfield development and improvement of existing systems Build REST APIs Engineer microservices Evolve systems supporting card payments, treasury management, transaction booking, and crypto liquidity Develop predominantly with Java 25 on the backend and PostgreSQL Use Spring Boot for delivery Develop business logic with emphasis on clean, maintainable … delivery Collaborate with a talented team to create solutions that drive financial inclusion and transform how people manage money Requirements Demonstrable experience in Backend development, with fluency in Java Bachelor's Degree (or above) in Computer Science, Mathematics, Physics, or other Engineering/Science disciplines Quick learner with ...

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 3rdparty 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 ...

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 Solid knowledge of cloud platforms (GCP and/or AWS), with the ability to design and deploy data solutions at scale Experience with IAC and CI/CD pipelines to ensure reliable, repeatable ...

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 ...

world work better for people. Overview We are looking for an AI Developer to join our dynamic team and contribute to the design, development, and deployment of AI-powered applications and intelligent workflows. The ideal candidate will have a strong background in Python development, experience integrating … into production systems, and the ability to build scalable, secure, and high-performance applications. Experience with data processing, cloud-native architectures, and modern AI development patterns will be highly valued. Responsibilities Develop, test, and maintain AI-powered applications and intelligent workflows using Python in a cloud-native environment Design ...

C#/.NET and modern cloud-native technologies. This role is responsible for designing, building and delivering software solutions end-to-end, owning the development lifecycle from technical specification through implementation, testing, deployment and continuous improvement. As an AI-native engineer, you will use approved AI-assisted development … scalable applications using TypeScript, React, C#/.NET and related technologies. Translate business requirements into clear, structured and testable technical specifications, applying Spec-Driven Development principles. Write secure, maintainable and high-quality code that follows modern engineering standards and best practices. Design and build RESTful APIs, integrations and microservices ...

mobile applications that support an evolving digital strategy. The Role As a Digital Application Developer, you'll be involved in the full software development lifecycle, working closely with product, design and engineering teams to deliver secure, scalable and user-focused digital solutions. You'll contribute to the development … Skills & Experience We're interested in speaking with candidates who have experience in some of the following areas: React, TypeScript and modern JavaScript development Mobile application development using iOS and/or Android technologies API development and systems integration Software design principles and application architecture ...

have an opportunity to be part of re architecture and re-platforming initiatives on business process transformation.**Responsibilities: -*** Write code on one or more development platforms to deliver part or all of a feature, collaborating with Enterprise Architect and Senior engineers.* Respond to problems, questions, or situations by applying … established criteria to directly influence development outcomes. In doing so, use the right technology to solve technical challenges required to deliver all or part of small scale features and functions and/or supporting aspects of a larger program efforts.* Have responsibility for applications solution design and programming activities ...

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 ...

experienced Senior Full Stack Engineers to join a high-performing engineering team building and enhancing modern enterprise applications. This is a hands-on development role for engineers who enjoy working across the full technology stack, delivering scalable web applications, cloud-native services, and modern user experiences. The successful candidate … will have strong Java and Front End development experience, a passion for software engineering best practices, and experience working within Agile delivery teams. Key Responsibilities Design, develop and maintain scalable enterprise applications. Build modern Front-End applications using React (preferred) or Angular. Develop secure and performant backend services using ...

applications and user-facing digital platforms.Build, support, and enhance APIs and backend services using .NET/C# and Node.js. Work with AWS Lambda and API Gateway to support serverless application development. Develop and maintain integrations between Salesforce and internal systems using Celigo. Write, optimise, and troubleshoot SQL queries, stored … procedures, and database processes. Support Salesforce development using Apex and Aura Components. Deliver responsive, accessible, and high-performing front-end experiences. Implement designs from internal and external creative teams. Create and maintain HTML email templates for both B2C and B2B communications. Integrate third-party services and social media platforms ...

do. Founded in 2018, Parser is a boutique technology services and consulting firm helping global organisations solve complex business challenges through digital transformation, product development and AI enablement. We are a fast-growing team of 340+ engineers and consultants across Europe (UK, Spain, Portugal), the Americas (US, Argentina, Uruguay … define the right problems, shape solutions, and deliver technology-driven outcomes that create measurable business value. Our expertise spans software engineering, AI & data, product development, and customer experience, delivered by teams that combine strong technical depth with a consulting mindset. Why Join Us? If you are looking ...

Mentor junior developers where appropriate. Требования: Proven experience developing enterprise-scale, cloud-native applications; Strong understanding of software engineering principles, SOLID design and modern development practices; Experience building secure, scalable and maintainable software; Strong problem-solving, communication and stakeholder engagement skills; Comfortable working across front-end, back … within Agile delivery teams; Must be eligible for obtaining and maintaining UK SC Clearance; Proficiency in C# and .NET (ASP.NET Core), React, TypeScript, REST API development, SQL Server, Entity Framework and Microsoft Azure; Experience with Azure App Service, Azure Functions, Azure Service Bus, Azure SQL, Azure Storage, Microsoft ...

Remote arrangements) Department Shortform/Commercials & Digital Puppetry Employment Type Full‐time Core Software Blender (Advanced Rigging, Deformation, Geometry Nodes) Programming Python, Blender Python API, Modular Development, Git Specialization Character Rigging, Modular Systems, Digital Puppetry & Performance Capture Key Accolades Multiple BAFTA, Emmy, and Annie Award Winner; Broadcast Best … upstream (Modelling/LookDev) and downstream (Animation/Layout) departments, aligning technical deliverables with macro production schedules. Tooling, Automation, and Pipeline Maintenance Blender API Development: Read, debug, extend, and rewrite existing studio tools using Python and the Blender Python API . Build bespoke ...

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 ...

will be working for one of our high-profile trading clients within the financial services domain, contributing hands-on to a Java-based development team supporting a high-volume message processing environment. The team is heavily Java-focused, operating within a client ecosystem that relies extensively on Kafka, Kubernetes … handling, and backpressure management. Experience designing and developing cloud-native applications with a microservices architecture running on Docker/OpenShift/Kubernetes. Strong application development skills in Java, SQL (SQL Server, Oracle, etc.) and messaging platforms such as Kafka and MQ. Experience with the Spring framework and Spring Boot ...

gender expression, disability, origin, religious belief and sexual orientation or any other criteria.**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. … 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 ...

sukupuolen ilmaisusta, vammaisuudesta, alkuperästä, uskonnollisesta vakaumuksesta ja seksuaalisesta suuntautumisesta tai muista kriteereistä riippumatta.**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. … 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 ...

energized by technical leadership, modern cloud technologies, and building products at scale, we'd love to hear from you. Responsibilities Lead the design and development of large-scale software solutions that support critical business capabilities Shape technical architecture and engineering standards across multiple products and teams Build modern, cloud … design principles Contribute across the full technology stack, from user interfaces to APIs and backend services Mentor engineers and provide technical guidance on complex development initiatives Drive best practices in software quality, performance, security, and maintainability Collaborate closely with Product, Engineering, and Architecture teams to translate business needs into ...

energized by technical leadership, modern cloud technologies, and building products at scale, we'd love to hear from you. Responsibilities Lead the design and development of large-scale software solutions that support critical business capabilities Shape technical architecture and engineering standards across multiple products and teams Build modern, cloud … design principles Contribute across the full technology stack, from user interfaces to APIs and backend services Mentor engineers and provide technical guidance on complex development initiatives Drive best practices in software quality, performance, security, and maintainability Collaborate closely with Product, Engineering, and Architecture teams to translate business needs into ...