151 to 175 of 352 API Development Jobs

Senior Java Developer - Hybrid

Hiring Organisation
Genesis10
Location
Columbus, Ohio, United States
Employment Type
Permanent
Salary
USD Hourly
based on qualifications Position Overview: This role will support a large Card Servicing team within Enterprise Payments. The focus will be on backend development supporting card servicing applications and processor integrations. Key Responsibilities: Perform backend Java development for enterprise payment systems Develop and maintain REST APIs Support card … servicing applications and processor integrations Participate in an Agile/Scrum environment Primary Requirements: Strong backend Java development experience Spring Boot REST API development Enterprise application integration experience Experience working with backend processors Agile/Scrum experience Desired Skills: Credit card or debit card domain experience Payments ...

Senior Software Engineer

Hiring Organisation
Bright Purple Resourcing
Location
United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Fully remote within the UK 12 month fixed term contract with strong possibility for extension 33 days' annual leave Pension and private healthcare Professional development and a clear route to progression A supportive, mission-driven team Work that makes a visible difference to people's lives What … What you'll bring Extensive commercial experience with C#, .NET and SQL Strong Azure experience, including cloud adoption frameworks A proven track record in API development and modern system architecture Hands-on experience with CI/CD pipelines, version control, automated testing and code reviews A calm, practical ...

Senior Software Engineer

Hiring Organisation
Bright Purple Resourcing
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Fully remote within the UK 12 month fixed term contract with strong possibility for extension 33 days' annual leave Pension and private healthcare Professional development and a clear route to progression A supportive, mission-driven team Work that makes a visible difference to people's lives What … What you'll bring Extensive commercial experience with C#, .NET and SQL Strong Azure experience, including cloud adoption frameworks A proven track record in API development and modern system architecture Hands-on experience with CI/CD pipelines, version control, automated testing and code reviews A calm, practical ...

Senior Software Engineer

Hiring Organisation
Bright Purple Resourcing
Location
Poole, Dorset, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Fully remote within the UK 12 month fixed term contract with strong possibility for extension 33 days' annual leave Pension and private healthcare Professional development and a clear route to progression A supportive, mission-driven team Work that makes a visible difference to people's lives What … What you'll bring Extensive commercial experience with C#, .NET and SQL Strong Azure experience, including cloud adoption frameworks A proven track record in API development and modern system architecture Hands-on experience with CI/CD pipelines, version control, automated testing and code reviews A calm, practical ...

Junior Software Engineer (Data Products)

Hiring Organisation
Yapily
Location
London, United Kingdom
Salary
£ 70 K
/Sub, BigQuery, Cloud Storage Cross-functional Collaboration: Partnering with BI, infrastructure, and productteams to understand data requirements and deliver technical solutions. API Development: Helping build and document APIs that deliver a seamless dataexperience for internal and external stakeholders. Database Operations: Working with SQL and NoSQL databases, helping … understanding of CI/CD concepts. Problem-Solving Mindset: A proactive approach to debugging and a genuinecuriosity about how data flows through a system. API Awareness: Basic understanding of REST APIs and how microservicescommunicate. Educational Background: A degree in Computer Science, Software Engineering, ora related field (or equivalent practical ...

Core AI Engineer

Hiring Organisation
London Stock Exchange Group
Location
London, UK
Employment Type
Full-time
embrace diversity and actively seek to attract individuals with unique backgrounds and perspectives. We break down barriers and encourage teamwork, enabling innovation and rapid development of solutions that make a difference. Our workplace generates an enriching and rewarding experience for our people and customers alike. Our vision … operational workflows, accelerate engineering productivity and enhance customer outcomes. As a Core AI Engineer, you will play a leading technical role in the design, development and deployment of AI solutions across the organisation. You will combine software engineering, machine learning and AI platform expertise to turn innovative concepts into ...

Senior AI Engineer, Agentic Systems

Location
City of Westminster, England, United Kingdom
with Research, Product, and Engineering to rapidly prototype, test, and refine new capabilities through short feedback loops. Take solutions from prototype to production, including API development, CI/CD pipelines using GitHub Actions, and Kubernetes deployments across multiple environments using core AWS services such … Platform & Systems Self‐Sufficiency This is you if you're comfortable owning infrastructure end-to-end — deploying a database, designing a schema, shipping an API — without a dedicated platform or DevOps team. Experience designing APIs and deploying containerized services using Docker and Kubernetes. Bonus: Experience with graph‐aware retrieval ...

Senior Data Scientist, Agentic Systems

Location
Greater London, England, United Kingdom
with Research, Product, and Engineering to rapidly prototype, test, and refine new capabilities through short feedback loops. Take solutions from prototype to production, including API development, CI/CD pipelines using GitHub Actions, and Kubernetes deployments across multiple environments using core AWS services such … Platform & Systems Self‐Sufficiency This is you if you're comfortable owning infrastructure end-to-end — deploying a database, designing a schema, shipping an API — without a dedicated platform or DevOps team. Experience designing APIs and deploying containerized services using Docker and Kubernetes. Bonus: Experience with graph-aware retrieval ...

Senior Software Developer

Location
Bridgend, Wales, United Kingdom
Purpose** This role demands deep expertise in Microsoft Dynamics 365, Azure Cloud, and Microsoft Power Platform, paired with strong skills in web technologies, API development, and systems design. You will lead the customization and optimization of our Dynamics 365 CRM, mentor team members, and collaborate with technical leadership … Responsibilities** Relying on extensive experience and judgment, this role offers substantial latitude for decision-making with minimal oversight, including:**Microsoft Dynamics 365 CRM Development*** Customize and optimize Microsoft Dynamics 365 CRM to align with business requirements.* Integrate client APIs into Dynamics 365 using Azure Cloud services and Microsoft Power ...

Senior Data Platform Engineer (Python & Databricks)

Location
City of Edinburgh, Scotland, United Kingdom
About Codelitt At Codelitt, we are more than a product-development company. We are creators, innovators, and problem solvers. We partner with companies around the world to design and build meaningful digital products, modernize complex systems, and solve challenging technical problems. Our globally distributed team values technical excellence, ownership … platform. We process our payment in US dollars, however you can receive it in your local currency. What You’ll Do Data Platform Development Build and maintain components of a large-scale financial data platform. Develop reliable data pipelines for ingesting, transforming, and delivering financial data. Design data models ...

Senior Manager of Software Engineering

Hiring Organisation
JP Morgan Chase
Location
Glasgow, UK
Employment Type
Full-time
mentoring, and cross-team coordination. Job responsibilities* Builds and sustains a high performance engineering team through structured hiring, onboarding, regular one-to-ones, performance development, and active coaching of engineers at all levels* Creates an environment where engineers are empowered to do their best work, with clear goals, rapid … agile environment* Formal cloud training or certification on software engineering concepts and applied experience* Hands-on practical experience delivering system design, application development, testing, operational stability, scalability* Advanced in one or more programming language(s) such as go, java, python, terraform* Proficiency in automation and continuous delivery methods* Proficient ...

FullStack ASP.NET Developer - Insuretech

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Tech: JavaScript, ASP.NET MVC 5, Entity Framework Code First, Restful API, Angular, SQL, Azure Challenge: Greenfield platform, API development, industry specific challenges Firm: Well-known Insuretech business, City of London, 5 man flat Dev Team Pay: 75k, Bonus- 750 training budget, Pension, Life/Health, Some Flex … individualised, algorithmic financial products, bringing together investment banks, insurance companies, asset managers and commercial banks. You will be responsible for the design, planning and development of front-end solutions, based on industry requirements and resulting from cooperation with the team and our customers You will need to establish testing ...

Full Stack Developer

Hiring Organisation
CBSbutler
Location
London, UK
Employment Type
Full-time
responsible for developing and maintaining full-stack solutions, using Python (Flask) on the backend and JavaScript (React) on the frontend. Key skills: Strong Python development experienceHands-on experience with FlaskJavaScript & ReactREST API development and integrationFull-stack application developmentAgile development experienceActive SC Clearance - must be held ...

ASP.NET MVC Developer - Fintech50

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
invoicing market by storm. This is a brand new project to create an efactoring platform and CRM system from scratch. The ASP.NET MVC Development role is expansionary due to a brand new international platform being created. The ASP.NET MVC Developer will be involved in greenfield platform development for a global high demand high transaction payments gateway. The frontend development of their web platform in HTML5, Javascript, angular.js and CSS3 and the backend in ASP.NET MVC and noSQL (which will be gained in experience)The ASP.NET MVC Developer will be fully responsible for production, modification ...

Back-End Developer

Location
Belfast, Northern Ireland, United Kingdom
projects where innovation meets innovation, shaping user experiences that captivate and inspire. If you're driven to push the boundaries of App and Software development, this is your chance to make a significant impact. We are looking for an experienced and forward thinking Developer, who wishes to work … Strong understanding of MVC architecture , ORMs (Eloquent) , and service containers . Experience with MySQL databases, including schema design and query optimisation. Solid understanding of API development (REST, JSON). Proficient in Git and modern version control workflows (GitHub/Bitbucket). Experience with queuing systems (e.g. Laravel Queues ...

Software Engineers

Location
Douglas, Isle of Man, United Kingdom
Experience Software engineering and application development. Microsoft technologies including Azure, .NET, C#, Power Platform and associated services. Solution architecture and technical design. Salesforce development, administration or platform engineering, or transferable software engineering skills with the ability to develop Salesforce expertise. Cloud Operations Engineering, platform engineering, infrastructure engineering or site … reliability engineering. Test automation, quality engineering and automated testing frameworks. API development, application integration and distributed systems. DevOps tooling, CI/CD pipelines and automation practices. Monitoring, observability, incident management and operational resilience. Agile software delivery and modern engineering methodologies. Strong analytical, troubleshooting and problem-solving skills. Excellent ...

Mid-Level Full-Stack Software Engineer

Location
Greater London, England, United Kingdom
maintain robust APIs and user interfaces for our enterprise applications. The ideal candidate will be passionate about clean code, scalable architecture, and collaborative development, working closely with engineering and Product teams to build high quality products. Exposure to modern AI tools and services (such as GitHub Copilot or APIs … Core. Work with data from SQL (MS-SQL server) and NoSQL (MongoDb) databases and external APIs. Ensure secure coding practices are followed throughout the development lifecycle. Collaborate with cross-functional teams to integrate APIs with frontend and backend systems. Build and maintain responsive, accessible user interfaces using React, JavaScript ...

Full Stack Javascript Software Engineer

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Challenge: Greenfield Trading platform, API development, industry specific challenges Firm: Well-known Fintech Trading Platform Vendor, Surbiton, 30 man flat global Dev Team Pay: 80k, Bonus- 750 training budget, Pension, Life/Health, Some Flex WorkingFull Stack Javascript Software Engineer Quant Capital is urgently looking for a Full … pricing of derivatives to most of the buy side. I am seeking a full stack developer to work as part of a larger development team focused on driving innovation across a cloud-enabled, microservices platform for the Institutional & Investment Management divisionThis is an opportunity for an individual with ...

Junior Full Stack Javascript Software Engineer

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 70 K
Tech: Javascript, TypeScript, MongoDB, Angular, HTML5, CSS, BootstrapChallenge: Greenfield Trading platform, API development, industry specific challengesFirm: Well-known Fintech Trading Platform Vendor, City of London, 30 man flat global Dev TeamPay: 80k, Bonus- 750 training budget, Unlimited holiday, Pension, Life/Health, Some Flex WorkingJunior Full Stack Javascript … valuations and pricing of derivatives to most of the buy side.I am seeking a full stack developer to work as part of a larger development team focused on driving innovation across a cloud-enabled, microservices platform for the Institutional & Investment Management divisionThis is an opportunity for an individual with ...

Software Engineer

Location
United Kingdom
excellence. Operating in key financial centres across the Americas, Asia, Europe and the Middle East, our international presence offers a unique springboard for career development and cross-cultural immersion. Our side-by-side financial and legal services are similarly ripe for interdisciplinary learning and growth. The Maples Group looks … while continuously improving existing applications Upholding high code quality standards and ensuring comprehensive test coverage Ensuring security, stability, and capacity are embedded in the development and deployment of services Integrating software components and third-party apps Leveraging Azure Cloud services to boost performance and scalability Designing and deploying Infrastructure ...

Full Stack Engineer

Location
Knutsford, England, United Kingdom
scalable applications within modern cloud environments. DevOps, CI/CD & Automation - Exposure to engineering automation, deployment pipelines, and continuous integration practices. Database Design, Performance & API Integration - Experience with data modelling, API development, and messaging technologies such as Kafka and MQ. You may be assessed … role To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues. Accountabilities Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized ...

Senior Full Stack Engineer - Lyst Shop (11 Month FTC - Maternity Cover)

Location
Greater London, England, United Kingdom
shopping through AI and technology. We are looking for an experienced Senior Full-stack Engineer to join our Shop Experience team within the Product Development tribe. You will play a key role in shaping seamless, trustworthy, and high-performing shopping experiences for millions of users around the world. … product experiences are built by collaborative teams with strong technical foundations and a deep understanding of user needs. You will focus on: Full-stack Development: You will design, build, and evolve scalable web applications and backend services using React, TypeScript, and Python (Django). You’ll contribute across ...

Senior Platform Engineer (Cloud Media Platforms)

Location
Greater London, England, United Kingdom
IR35 Must have right to work in the UK and be based near London. Senior Platform Engineer (Cloud Media Platforms) providing technical design and development/implementation of systems that industrialise media workflows. Acting as the primary technical authority for Cloud NAS integration, media ingest pipelines, & automated metadata scripting. … similar workflows is required. You will need strong Cloud DevOps skill set, hands on scripting of either Python, Go, or Node.js for automation and API development, hands‐on expertise with AWS (preferred) or GCP and Infrastructure as Code (Terraform) etc Job Description Main Responsibilities Lead the architecture ...

Full Stack Developer - Intermediate

Hiring Organisation
Pinnacle Technical Resources
Location
Plano, Texas, United States
Employment Type
Permanent
Salary
USD 125 Hourly
Hire (CTH) Conversion Level: 602 Rate: $125/hour Interview Process: One round of onsite interview Coding assessment will cover both frontend and backend development Project Overview: This position supports the Card Benefits team, which manages credit card benefits and customer enrollment processes for those benefits. Must-Have Skills … Java - 30% react Strong hands-on experience with React.js and JavaScript Strong hands-on experience with Java and Spring Boot Full-stack development experience with the ability to work on both frontend and backend applications Experience with AWS cloud services - anything will work ECS, EKS and Lambda Ability ...

Senior Platform Engineer (Cloud Media Platforms)

Hiring Organisation
PCR Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £470/day Outside IR35 (TBC)
IR35 Must have right to work in the UK and be based near London. Senior Platform Engineer (Cloud Media Platforms) providing technical design and development/implementation of systems that industrialise media workflows. Acting as the primary technical authority for Cloud NAS integration, media ingest pipelines, & automated metadata scripting. … similar workflows is required. You will need strong Cloud DevOps skill set, hands on scripting of either Python, Go, or Node.js for automation and API development, hands-on expertise with AWS (preferred) or GCP and Infrastructure as Code (Terraform) etc Senior Platform Engineer (Cloud Media Platforms) Job Description ...