176 to 200 of 352 API Development Jobs

Lead Software Engineer

Hiring Organisation
JP Morgan Chase
Location
Glasgow, UK
Employment Type
Full-time
core goal of reducing the infrastructure toil and Technology Lifecycle Management burden carried by application teams today. Job responsibilities* Executes creative software solutions, design, development, and technical troubleshooting with ability to think beyond routine or conventional approaches to build solutions or break down technical problems* Develops secure and high … qualifications, capabilities, and skills* 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 ...

.NET Core Developer Fintech SQL- Guildford

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Tech: C#, ASP.NET MVC 5, SQL, Anngular. JS Web API CFChallenge: Greenfield Automated Data platform, API development, industry specific challengesFirm: Well-known digital mapping solutions, Guildford , 20 man flat Dev TeamPay: 60k, Bonus- 750 training budget, Pension, Life/Health, Some Flex Working.NET Core Developer Fintech SQLQuant … GuilfordCommutable fromCamberley Godalming Guildford Bracknell Dorking Reigate Petersfield Croydon Reigate Leatherhead Richmond Epsom "South London" Esher WokingGreenfield. C# Lead Software Developer, .Net Senior Developer, Development Lead, Technical Lead, Lead Application Developer Fullstack (web technologies, HTML, JQuery, AngularJS, SQL Server, C#, API ...

Senior AI Engineer Manager/Associate Director | Capital Markets

Location
City of Edinburgh, Scotland, United Kingdom
Applied AI engineering, ML engineering or software engineering background Experience with LLMs, RAG, embeddings, prompt engineering or fine tuning Exposure to LangChain, LangGraph, Agent Development Kit or similar agent frameworks Experience with vector databases such as Pinecone, Chroma or similar API development experience, ideally with FastAPI ...

Principal Full Stack Engineer (Agentic AI)

Hiring Organisation
Danaher Corporation
Location
Cambridge, Cambridgeshire, United Kingdom
Salary
£ 70 K
positive impact on society.Learn about the Danaher Business System which makes everything possible.The Principal Full Stack Engineer (Agentic AI) is responsible for accelerating the development of our Agentic AI platform and applications by; understanding and identifying optimal components to address business need, architecting the solution, guiding and mentoring … capabilities. The essential requirements of the job include:Strong software engineering capability, primarily in TypeScript (with Python as an additional benefit) with backend and API development skills. Demonstrated ability to design, deploy, and operate production-grade AI systems with focus on reliability, scalability, and performance. Expertise in Agentic ...

.Net Technical Lead

Hiring Organisation
Hackajob Ltd
Location
Belfast, UK
. Job Description Architecting software solutions using the Microsoft Azure stack primarily, with scope to work with Open Source technology where appropriate (70% technical development and 30% management split) Helping to build and lead an effective, cross-functional squad practising agile ways of working (Scrum, DevSecOps, Design Sprints … participation within a highly collaborative tribe of software engineering professionals, ensuring alignment on standards and ways of working. Qualifications Experienced in .Net and C# development Current ability to act as a Lead .Net Developer and experience at this level is essential with line management or the ability to supervisor ...

Amazon Connect, Principal Consultant

Location
Greater London, England, United Kingdom
solutions for voice and digital channels (live chat, voice, written channels) Build and deploy serverless integrations using AWS Lambda (Python/Node.js), API Gateway, DynamoDB, Kinesis, and CloudFormation/Terraform connecting Amazon Connect to backend systems (Pega CRM, internal APIs) Implement infrastructure as code (Terraform/CloudFormation) for repeatable … reviews. Skills and experience you will bring: Bachelor's degree in Computer Science, Engineering, or equivalent professional experience 5+ years of hands-on software development or cloud engineering experience Demonstrable experience delivering multiple Amazon Connect implementations in enterprise environments, including design, integrations, routing, telephony, and production support. Proficiency ...

Senior Software Engineer

Location
Saltaire, England, United Kingdom
your day You’ll take ownership of Python services that sit at the heart of a large-scale connected device platform, working across backend development, infrastructure and production operations. Your responsibilities will include: Designing, building and maintaining production-grade Python services supporting thousands of deployed smart meters. Developing … platform data. Designing resilient services that handle asynchronous processing, message-driven workflows and potential system failures. Taking ownership of services throughout their lifecycle, from development and testing through to deployment and production support. Deploying and managing your own services using Docker and Kubernetes. Supporting the migration of existing services ...

Dynamics 365 Developer

Hiring Organisation
SRG
Location
Manchester, Lancashire, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
teams across sales, operations, finance, credit and compliance What we're looking for 4+ years of hands-on Dynamics 365/Power Platform development Strong C#, .NET and JavaScript Proven plugin, custom workflow and API development Strong Dataverse and solution architecture knowledge Experience integrating Dynamics 365 with ...

Senior Product Engineer

Location
City of Edinburgh, Scotland, United Kingdom
Edinburgh. What We're Looking For Strong experience building modern web applications TypeScript and modern frontend experience (React, Vue, or similar) Python and API development experience Strong SQL and PostgreSQL knowledge Full-stack capability across frontend and backend development Experience working within SaaS or product-led technology … product ownership and influence Work directly with technical leadership Broad technical exposure across the full stack Modern technology environment Strong opportunities for progression and development Benefits Competitive salary package Hybrid working model Incredibly modern Edinburgh city centre office High levels of autonomy and ownership Ad hoc discretionary bonuses ...

Software Engineer Specialist - Agentic Commerce

Location
Greater London, England, United Kingdom
drive continuous improvement. Collaborate with product managers, architects and engineering teams to define technical requirements, participate in software design reviews and contribute to API governance standards across the organization. What you'll bring Experience designing, developing, debugging and enhancing scalable software applications and APIs. Strong understanding … software development life cycles, engineering standards and modern development practices. Proficiency in solutions design, systems architecture and requirements definition. Knowledge of distributed systems, API development and integration patterns. Familiarity with financial services, payments or fintech technologies. Bachelor's degree in Computer Science, Computer Engineering ...

Fullstack Engineer

Hiring Organisation
La Fosse Associates
Location
London, UK
Employment Type
Full-time
directly with founders to influence product strategy, engineering direction and future hiring. Develop cloud-native systems using AWS Serverless, Lambda, PostgreSQL, Supabase and modern API architectures. Improve platform reliability, observability, security, performance and scalability. Support CI/CD, Infrastructure as Code and software engineering best practices. Tech StackTypeScript, React … Next.js, Node.js, Go, Python, AWS, Lambda, PostgreSQL, SQL, Supabase, API Development, AI, Machine Learning, LLMs, OpenAI, Claude, MCP, RAG, Serverless, CI/CD, Infrastructure as CodeWhat They're Looking ForStrong commercial experience as a Software Engineer, Full Stack Engineer, Full Stack Developer or Senior Software Engineer. Expertise with ...

Fullstack Engineer

Location
Greater London, England, United Kingdom
directly with founders to influence product strategy, engineering direction and future hiring. Develop cloud-native systems using AWS Serverless, Lambda, PostgreSQL, Supabase and modern API architectures. Improve platform reliability, observability, security, performance and scalability. Support CI/CD, Infrastructure as Code and software engineering best practices. Tech Stack TypeScript … React, Next.js, Node.js, Go, Python, AWS, Lambda, PostgreSQL, SQL, Supabase, API Development, AI, Machine Learning, LLMs, OpenAI, Claude, MCP, RAG, Serverless, CI/CD, Infrastructure as Code What They’re Looking For Strong commercial experience as a Software Engineer, Full Stack Engineer, Full Stack Developer or Senior Software ...

Head of Engineering

Hiring Organisation
WRK DIGITAL LTD
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
strategy for a portfolio of proprietary financial technology products. Lead and develop a growing international engineering organisation. Drive modern software engineering practices across product development, platform engineering and cloud services. Partner with Product teams to align engineering delivery with strategic objectives and business outcomes. Champion engineering excellence through automation … whilst maintaining agility. Build strong relationships across Product, Technology, Risk, Compliance and Executive Leadership teams. Provide technical leadership for strategic initiatives including platform modernisation, API development and operational resilience. Support the continued growth of a globally distributed engineering function and external technology partnerships. What We're Looking ...

Software Engineer

Location
Milton Keynes, England, United Kingdom
outcomes without dependency on external PMs Ensure outputs are production-ready, maintainable, and observable from day one Apply AI and automation tooling to accelerate development, testing, and operations Integrations & API Development Both independently and via 3rd Party Engineering team Integrate third-party services, for example payment processors …/KYB providers, fraud platforms, and banking APIs Build and maintain robust API layers including validation, orchestration, and workflow logic Implement secure, PCI-aware designs aligned with payments industry expectations Data & Infrastructure Design and maintain data pipelines and reporting structures using AWS native tooling Apply high availability and fault ...

Senior Research Software Engineer - Breakthrough Listen

Hiring Organisation
University of Oxford
Location
Oxford, Oxfordshire, United Kingdom
Salary
£ 70 K
maintain software used for scientific research and translational projects, as well as providing consulting and training to other researchers on best practices in software development and reproducible research. This post is part of OxRSE’s embedded RSE group within the Department of Physics.This is an exciting opportunity to join … astronomy, machine learning, and large-scale scientific computing.We offer RSEs the potential to advance their career and to make a significant contribution to the development of good software practices at a world-leading university. The successful candidate will, following the initial two year period, have the opportunity to work ...

.Net Core Engineer

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Tech: .Net Core, Blockchain Challenge: Greenfield Blockchain platform, API development, industry specific challenges Firm: Well-known fintech50 business, City of London, 30 man flat Dev Team Pay: 80k, Bonus- training budget, Pension, Life/Health, Some Flex Working.NET Core Engineer Fintech BlockchainQuant Capital is urgently looking … .NET Core Developer to join our high profile client. Small iterative releases over large releases Automated testing over manual testing Development team testing culture over testing is a separate function Upfront team acceptance criteria over tests derived from the specificationOur client is a well known financial market data provider ...

Senior Research Software Engineer - Breakthrough Listen

Location
Oxford, England, United Kingdom
maintain software used for scientific research and translational projects, as well as providing consulting and training to other researchers on best practices in software development and reproducible research. This post is part of OxRSE’s embedded RSE group within the Department of Physics. This is an exciting opportunity … machine learning, and large-scale scientific computing. We offer RSEs the potential to advance their career and to make a significant contribution to the development of good software practices at a world-leading university. The successful candidate will, following the initial two year period, have the opportunity to work ...

Principal Full Stack Engineer (Agentic AI)

Location
Cambridge, England, United Kingdom
Role overview Principal Full Stack Engineer (Agentic AI) is responsible for accelerating the development of our Agentic AI platform and applications by understanding and identifying optimal components to address business need, architecting the solution, guiding and mentoring the team, and ensuring quality, reliability and scalability of the solution. This … capabilities. The essential requirements of the job include Strong software engineering capability, primarily in TypeScript (with Python as an additional benefit) with backend and API development skills. Demonstrated ability to design, deploy, and operate production-grade AI systems with focus on reliability, scalability, and performance. Expertise in Agentic ...

C# Software Engineer

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Tech: C#, SQL, MVC, WPF, .net coreChallenge: Greenfield Insurance platform, API development, industry specific challengesFirm: Well-known Insurance Trading Platform Vendor, City of London, 30 man flat global Dev TeamPay: 80k, Bonus- 750 training budget, Pension, Life/Health, Some Flex WorkingC# Software Engineer Quant Capital is urgently … C# Developer to work for our high profile Lloyds of London insurer. 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#.This varied role is based ...

Software Engineer

Location
Greater London, England, United Kingdom
other unstructured online sources, which produce timely structured data for internal use in models and trading systems Implement and maintain relational database schemas and API integrations which interface the above with internal modeling and trading systems Enhance and refactor existing systems for scale and performance Monitor and optimize system … Java (Spring), experience in Python, and working knowledge of R Cloud & Infrastructure : Hands-on experience with Google Cloud Platform (GCP) and Docker containerization API Development : Experience building and integrating with RESTful APIs, particularly for real-time applications AI/LLM integration : Experience with design and delivery of analytics ...

Smart Buildings Commissioning Engineer

Location
Greater London, England, United Kingdom
values, rather than transactional relationships. Alongside actively working to support the raising of standards in training and professional qualifications, we invest heavily in the development of our people. We give them access to continuous learning opportunities, leading to the freedom of working autonomously and making their own informed decisions … Buildings Commissioning Engineer, you will play a key role in the delivery of Master Systems Integration (MSI) projects, with a particular focus on software development, data integration, data input, testing, and commissioning of smart building systems. Working under the guidance of the Technical Services Manager, you will support ...

Senior Product Specialist

Hiring Organisation
Cardiff and Vale University Health Board
Location
Cardiff, CF14 4TT, United Kingdom
Salary
£58379.00 to £65723.00
/03/2028 due to funding Main duties of the job You will work with the programme team on the implementation and ongoing development of a new Mental Health and Community Electronic Patient Record (EPR) system, supporting one of the largest digital transformation programmes in Welsh healthcare. … Apply now to view in Trac Person Specification Qualifications Essential Masters and/or equivalent skills and experience In depth knowledge of current IT development tools, paradigms, and methodologies In depth knowledge of Service Provision standards and their application (ITIL particularly) Comprehensive understanding of the use of modern Information ...

Lead Agentic AI Engineer

Location
City Of London, England, United Kingdom
seeking a highly skilled and innovative Lead Agentic AI Engineer to join our team and drive the design, development, and deployment of production‐grade generative AI and agentic solutions using Microsoft technologies. This role is ideal for a technically strong engineer who has hands‐on experience building AI solutions … Agent Framework Proficient in Python and production‐quality code practices Strong understanding of software engineering principles, architecture patterns, and delivery best practices Experience with API development using frameworks such as FastAPI, Flask, or Django Knowledge of Docker, containerised deployments, CI/CD, and cloud‐native delivery patterns What ...

Infrastructure Python Developer

Location
Sheffield, England, United Kingdom
/2026 Rate £402 Job Description: Python developer responsible for building scalable automation solutions to streamline database operations. Required Skills Hands on experience with API development using Python and FastAPI. Strong problem-solving, debugging, and analytical skills. Responsibilities Design, develop and maintain automation solutions for databases operations … rollouts Build and Integrate API for Database Management Operations and automation workflows Troubleshoot automation issues across scripting, APIs, and containerized environments. Containerize and deploy application/services using Docker and Kubernetes Administration for Kubernetes Resources (Pods, Ingress, Services, Secrets, CRDs, etc) Nice to have Exposure on enhancing observability with ...

Infrastructure Python Developer

Hiring Organisation
Experis
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £402/day
/2026 Rate £402 Job Description: Python developer responsible for building scalable automation solutions to streamline database operations. Required Skills. Hands on experience with API development using Python and FastAPI. Strong problem-solving, debugging, and analytical skills. Responsibilities: Design, develop and maintain automation solutions for databases operations … rollouts Build and Integrate API for Database Management Operations and automation workflows Troubleshoot automation issues across scripting, APIs, and containerized environments. Containerize and deploy application/services using Docker and Kubernetes Administration for Kubernetes Resources (Pods, Ingress, Services, Secrets, CRDs, etc) Nice to have Exposure on enhancing observability with ...