26 to 50 of 266 API Development Jobs in England

Role Summary :We are seeking a Java API Developer to join our Digital Asset development team. This is a hands-on software engineering role responsible for designing, developing, testing, and supporting RESTful APIs and backend services in a financial services environment. The role contributes to building reliable, secure … Java-based backend services and REST APIs that support financial services workflows and data use cases. Implement APIs in line with internal requirements for API design, security, versioning, and documentation, ensuring solutions are consistent and reusable. Collaborate with business and technology stakeholders to understand requirements, clarify edge cases ...

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 ...

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 ...

Full Stack Engineer within large-scale digital transformation programmes. Strong experience delivering projects within the public sector, ideally central government. Significant hands-on Java development experience. Strong knowledge of RESTful API development and microservices architecture. Front-end development expertise using technologies such as: React Angular TypeScript ...

Full Stack Engineer within large-scale digital transformation programmes. Strong experience delivering projects within the public sector, ideally central government. Significant hands-on Java development experience. Strong knowledge of RESTful API development and microservices architecture. Front-end development expertise using technologies such as: React Angular TypeScript ...

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 ...

summary The postholder will: The Integration Engineer is a senior technical role within the Trusts Digital Services function, responsible for the hands-on design, development, testing, deployment, and maintenance of clinical and corporate digital solutions. The post holder will work across integration, interoperability, automation, and application development … safe, high-quality, standards-compliant solutions that support patient care, operational efficiency, and workforce productivity. Working under the direction of the Solutions Design and Development Manager and in close collaboration with the wider Digital Services team, the post holder will contribute to the delivery of the Trusts Digital ...

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 ...

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 ...

critical systems Contribute to modernization of mainframe-based systems toward scalable, cloud-aligned architectures Maintain and enhance COBOL/DB2-based applications Advance distributed, API-driven, and event-based solutions Lead and mentor engineering teams and ensure adherence to team standards Ensure accurate, high-quality documentation and engineering deliverables … process strategies and standards Lead data assets within an Agile team according to enterprise standards and policies Spend approximately 50% of time on database development and testing and the remainder collaborating with partners on product/platform releases Collaborate with business, product, architecture, engineering, and delivery teams Prioritize sprint ...

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 ...

systems Coach and guide a small team of MLOps Engineers, Analytics Engineers and AI Engineers Collaborate with Data Science, Pricing, Data Engineering and Software Development teams Evolve Machine Learning and AI Engineering standards and frameworks Enhance data pipelines and engineering infrastructure for scaled ML and AI solutions Support data … acquisition, transformation, model discovery and development Ensure model auditability, versioning and data security Design and implement cloud AI Ops using Azure Optimise deployment of ML and AI model scoring code in production services Use CI/CD pipelines and manage deployment and versioning of data science and AI models ...

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 … 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 ...

develop and maintain secure, scalable and high-performance enterprise web applications. The ideal candidate must have hands-on experience in backend engineering, frontend architecture, API development, event-driven systems, databases, containerization, testing and CI/CD. The role also requires strong ownership, technical problem-solving, collaboration and mentoring … capabilities. Job Requirements Bachelors degree in Computer Science, Engineering or a related field, or equivalent education and professional experience. Minimum 10 years of software development experience with strong full stack application development exposure. Strong hands-on experience in Java-based backend development. Excellent proficiency in Spring Boot, Spring ...

home and support people to live healthier, more independent lives. We’re a supportive and inclusive organisation that values its people. We offer development opportunities, flexible working, and a strong focus on wellbeing. As a Disability Confident and equal opportunities employer, we welcome applicants from all backgrounds and experiences. … postholder will: The Integration Engineer is a senior technical role within the Trust’s Digital Services function, responsible for the hands-on design, development, testing, deployment, and maintenance of clinical and corporate digital solutions. The post holder will work across integration, interoperability, automation, and application development to deliver ...

Monday – FridayInterview Process: 3-stage processWhy SCC An inclusive workplaceExcellent package: solid basic and company benefitsHybrid working & core hours in line with role requirementsCareer development and life-long learning opportunitiesOpportunity to join Europe's largest privately-owned IT CompanyRole purpose: We are looking for an AI Engineer to design … existing business process or platform. What stays consistent across all of it is the approach: working with best-in-class foundation models via API, integrating cleanly with enterprise data and systems, and building things that work reliably in production — not just in a demo. You will work closely with ...

/SQL Server/REST APIs THE ROLE A growing, product-led software business is looking for a Software Engineer to join its Product Development team on a hybrid basis (two days a week on-site in Newark). This is a genuine blend of hands-on development … BENEFITS Salary of £35,000 - £40,000 Hybrid working - only two days a week on-site in Newark Full-lifecycle exposure across support, development and deployment Modern stack and up-to-date tooling, including AI-assisted development platforms International, product-led business with real scope to learn ...

supporting the team's transition from Power BI to Databricks and building out a broader data and application capability. The role combines full-stack development, data visualisation and API development, with experience across Databricks, Python, web development and APIs being particularly relevant. You'll be involved … designing and developing the technical infrastructure and API layers that sit behind applications, as well as proof-of-concept and early-stage solutions. A key part of the role will be technical leadership without direct people management - mentoring and upskilling a relatively junior team, helping establish best practices around ...

Tech: C#, Multithreading, Grindgain, Linq, SQL, Winforms Challenge: Greenfield Trading platform, API development, industry specific challenges Firm: Well-known Fintech Trading Platform Vendor, City of London, 30 man flat global Dev Team Pay: 80k, Bonus- 750 training budget, Pension, Life/Health, Some Flex WorkingC# Software Engineer – MultithreadingQuant … They provide valuations and pricing of derivatives to most of the buy side. This is an opportunity for an individual with a strong software development background. The applicant will be responsible for design, development and maintenance of my clients main pricing analytical library in C#. Quants Developers Must ...

Junior Frontend Developer Angular Developer – FintechTech: Angular, C# .net, Azure, SQL, Team City, GIT, TFSChallenge: Greenfield Trading platform, API development, industry specific challengesFirm: Well-known Insurtech software business, London, 10 man flat Dev TeamUp to 45,000Quant is urgently looking for an Angular Developer to join our high … profile client. Current challenges include cloud migration, greenfield trading platform development, and bank based API creation. Our client is a well known fintech software house in central London. This is an expansionary role building a greenfield financial modelling platform used by major finance business'.Working together with ...

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 ...

ASP.NET Developer – FintechTech: C# .net, Azure, SQL, Team City, GIT, TFS Challenge: Greenfield Trading platform, API development, industry specific challenges Firm: Well-known Insurtech software business, London, 10 man flat Dev Team Salary: 65,000Quant is urgently looking for an ASP.NET MVC Developer to join our high profile … client. Current challenges include cloud migration, greenfield trading platform development, and bank based API creation. Our client is a well known fintech software house in central London. This is an expansionary role building a greenfield financial modelling platform used by major finance business'.Working together with our team ...

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 ...

technical discussions. Collaborate with Product Management, DevOps, Quality Assurance, security specialists and other developers to manage dependencies and support iterative delivery. Apply secure development, data‐handling and responsible AI practices, including appropriate verification of AI‐assisted outputs and use of approved tools and accounts. Share knowledge with colleagues, contribute … practical improvements within the team’s scope. Degree in Computer Science, Software Engineering or a related discipline, or equivalent practical experience. Relevant professional software development experience delivering production code within a collaborative engineering environment. Practical development of web services, microservices or REST APIs using Python or a comparable ...