76 to 100 of 119 API Development Jobs

Senior AI Engineer Manager/Associate Director | Capital Markets

Hiring Organisation
Datatech
Location
London, United Kingdom
Employment Type
Permanent
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 ...

Scala Developer

Hiring Organisation
Lucid Support Services Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
working (two consecutive days per month onsite in Newcastle) Rate: Inside IR35 We are seeking a skilled Scala Developer to support and complete an API build as soon as possible, contributing to the development and implementation of key services. Responsibilities Develop and implement Front End and Back … with cross-functional teams to design, develop, and test applications meeting business requirements. Ensure best practices in code quality, testing, and deployment throughout the development life cycle. Participate in architectural discussions and contribute to technical decisions. Conduct code reviews and provide constructive feedback. Communicate effectively with stakeholders, translating technical ...

Applications Developer

Hiring Organisation
Ryder Reid Legal Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
play a key part in enhancing existing systems, building new solutions, and driving innovation across the firm's application landscape. The position combines .NET development, SharePoint expertise, and modern front-end technologies , working closely with technical and business stakeholders to deliver scalable, user-focused solutions. Key Responsibilities Analyse business … third-party services Troubleshoot and resolve technical issues across supported platforms Provide user support and training where required Contribute to continuous improvement of development processes and tools Work closely with stakeholders across the business to deliver high-quality solutions Support occasional out-of-hours maintenance to ensure system stability ...

Senior Generative AI Engineer

Hiring Organisation
Capgemini
Location
Greater London, United Kingdom
Employment Type
Full Time
time. Your Role: Implement and finetune generative AI models under the guidance of senior team members Contribute to prompt engineering and development of Ai powered workflows Assist with the deployment monitoring and maintenance of AI models in production environments Collaborate with data scientists and engineers to ensure seamless integration … capabilities Perform data preprocessing feature engineering and API development for AI applications Participate in code reviews testing and documentation to ensure quality and reliability Stay updated with advancements in GenAI and share relevant learnings with the team You will lead the development of data pipelines, vector databases ...

Java Software Engineer

Hiring Organisation
Amber Labs
Location
London, UK
delivery team building and enhancing cloud-native backend services within a modern enterprise environment. Role Overview The successful candidate will contribute to the design, development, and support of Java-based applications using Spring Boot and AWS , working as part of an Agile, multidisciplinary team. Alongside strong backend engineering skills … capability, enabling engineers to interrogate data and support business reporting requirements. This is a hands-on software engineering role with opportunities to contribute to API development, cloud-native architectures, and modern DevOps practices. Key Responsibilities Develop and maintain Java-based backend applications using Spring Boot Design and implement ...

Java Software Engineer

Hiring Organisation
Amber Labs
Location
City of London, Greater London, UK
delivery team building and enhancing cloud-native backend services within a modern enterprise environment. Role Overview The successful candidate will contribute to the design, development, and support of Java-based applications using Spring Boot and AWS , working as part of an Agile, multidisciplinary team. Alongside strong backend engineering skills … capability, enabling engineers to interrogate data and support business reporting requirements. This is a hands-on software engineering role with opportunities to contribute to API development, cloud-native architectures, and modern DevOps practices. Key Responsibilities Develop and maintain Java-based backend applications using Spring Boot Design and implement ...

Java Software Engineer

Hiring Organisation
Amber Labs
Location
City of London, London, United Kingdom
delivery team building and enhancing cloud-native backend services within a modern enterprise environment. Role Overview The successful candidate will contribute to the design, development, and support of Java-based applications using Spring Boot and AWS , working as part of an Agile, multidisciplinary team. Alongside strong backend engineering skills … capability, enabling engineers to interrogate data and support business reporting requirements. This is a hands-on software engineering role with opportunities to contribute to API development, cloud-native architectures, and modern DevOps practices. Key Responsibilities Develop and maintain Java-based backend applications using Spring Boot Design and implement ...

Modern Embedded C++ Software Engineer – Computer Vision

Hiring Organisation
Standard 8
Location
Farnborough, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 per annum
job. You'll work within embedded Linux environments, support build and release processes, contribute to automated testing, and help improve how software moves from development into production. You'll work closely with the hardware and algorithm teams, helping bring new capability into products already deployed in demanding operational environments. … particularly Jenkins or similar Solid grounding in software architecture and testing practice Comfortable working independently, without hand-holding Nice to Have Docker or containerised development environments Networking protocols and low-level hardware interfaces API development, including GraphQL Python/C++ integration, e.g. pybind11 If you want ...

AWS DevOps Engineer- Bristol based

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
Bristol, Avon, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
automating and maintaining cloud environments. Extensive experience building and optimising CI/CD pipelines, enabling automated build, test and deployment processes. Solid understanding of API development, integration and management, including RESTful services and microservice architectures. Commercial experience developing applications using .NET and/or JavaScript, with the ability ...

Full Stack Developer & Automation Specialist

Hiring Organisation
Service Service
Location
Hellesdon, Norfolk, United Kingdom
Employment Type
Permanent
Salary
£50000 - £75000/annum
This isn't your standard, repetitive coding job. You will be working on a unique mix of backend data systems, cutting-edge AI integrations, API development, and frontend web optimization. The ideal candidate is a problem solver who understands databases, loves connecting different systems together, and actively uses … journeys. Key Skills & Requirements The Must-Haves (Core Stack): SQL & Databases: Strong experience writing queries, managing relational databases, and handling data migration/cleansing. API Integration: Solid understanding of REST/SOAP APIs, webhooks, and data serialization (JSON/XML). AI Savvy: Active and proficient user ...

Technical Architect - Pre-sales

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
client data will be sourced, validated, and integrated into Mondra, leveraging where possible our existing Import and Export APIs and identifying where custom API development may be required for fulfil Mondra’s data requirements. You will also contribute to the client contracting process, ensuring technical commitments are clearly … including mapping data sources, transformation logic, and validation processes. Identify the client’s BI requirements, and define data export strategies (preferably via existing Mondra API). Identify the authentication/authorisation capabilities of the client, and promote the integration with Mondra’s Identity Provider via Single Sign On. Leverage ...

Senior Azure AI Platform Engineer | Azure AI Foundry | C# | APIs

Hiring Organisation
Intelligent Talent Solutions Ltd
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
serverless services Develop and support MCP Servers and AI integration services Design event-driven architectures using Azure Service Bus Manage APIs through Azure API Management Expose AI capabilities through secure, auditable APIs and reusable services Support Copilot Studio and AI-enabled workflows Monitor and optimise AI and integration services … using Azure Monitor and Application Insights Work closely with business stakeholders to translate operational challenges into AI-enabled solutions Essential Experience C# and .NET development Azure API Management (APIM) Azure Functions Azure Service Bus REST API design and development Azure AI Foundry Azure OpenAI Event-driven ...

Senior Dynamics Developer

Hiring Organisation
Head Resourcing
Location
Glasgow, City of Glasgow, United Kingdom
Employment Type
Permanent
Salary
£60000 - £80000/annum
mature, integration-heavy environment-enhancing performance, improving reliability, and driving real business value through smart engineering. About the Role Delivering hands-on development across Dynamics 365 & Dataverse (plugins, APIs, customisations, Power Platform). Responsibilities Owning end-to-end data flows - from upstream ingestion through to downstream reporting and APIs … Collaborating with product, data, integration and business teams to deliver high-quality solutions Qualifications Strong experience with Dynamics 365 CE/CRM and Dataverse development Solid coding background in C#/.NET, JavaScript/TypeScript, and API development Proven ability to work in integration-heavy environments (Azure ...

AI Engineer (SC Cleared)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
using trusted data sources Creating, testing and refining prompts, workflows and AI configurations to maximise accuracy and performance Applying solid software engineering practices including API development, version control, CI/CD and automated testing Monitoring and optimising AI systems in production, ensuring performance, cost control, security and compliance ...

AI Engineer (SC Cleared)

Hiring Organisation
Jobleads-UK
Location
Glasgow, Scotland, United Kingdom
using trusted data sources Creating, testing and refining prompts, workflows and AI configurations to maximise accuracy and performance Applying solid software engineering practices including API development, version control, CI/CD and automated testing Monitoring and optimising AI systems in production, ensuring performance, cost control, security and compliance ...

AI Engineer (SC Cleared)

Hiring Organisation
Morgan Hunt Recruitment
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £800 per day
using trusted data sources Creating, testing and refining prompts, workflows and AI configurations to maximise accuracy and performance Applying solid software engineering practices including API development, version control, CI/CD and automated testing Monitoring and optimising AI systems in production, ensuring performance, cost control, security and compliance ...

Senior Data Scientist

Hiring Organisation
Vitality Corporate Services Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
leverage external tools. Familiarity with agentic SDKs (ADK, LangChain, LlamaIndex, etc.) Proven track record of deploying AI applications into production environments Strong understanding of API development, microservices, and containerization (Docker, Kubernetes) Knowledge of MLOps best practices Excellent problem-solving skills and ability to work in a fast-paced ...

Lead AI Engineer

Hiring Organisation
Capco
Location
Borough of Tameside, United Kingdom
Employment Type
Full Time
Lead AI Engineer (Principal Consultant) to join our Technology Delivery Team. You’ll combine your expertise in AI/ML engineering and software development to build and deploy cutting-edge generative AI and agentic systems across the financial services sector. As a hands-on leader, you’ll architect … related STEM fields Hands-on experience deploying LLMs and multi-modal models at scale Strong engineering background in Python with proven backend and API development skills Solid understanding of scalable MLOps, observability, and cloud-native AI deployment Excellent communication, problem-solving, and project management skills in agile environments ...

Senior Software Engineer Python

Hiring Organisation
Revolut
Location
South West London, London, United Kingdom
Employment Type
Permanent
years of experience engineering with Python as your primary language An academic background in STEM Fluency in Python, SQL, and other OOPLs Experience with API development and integration A practical understanding of distributed systems The ability to write concurrent code in IO/CPU bound situations Experience with ...

Senior Django Developer - SC Clearance, Azure

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
week onsite in Canary Wharf. With a contract lasting until September 2026, the developer will need strong expertise in Python, Django, API development, and agile practices. The position offers a competitive day rate between £700 and £850. #J-18808-Ljbffr ...

Automation Developer

Hiring Organisation
Guidant Global
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
technical audiences Support adoption and continual improvement of automation best practices Essential Skills & Experience Strong knowledge of JavaScript (particularly for rules engine API development) Understanding of SQL for database queries Experience working with JSON data structures Rudimentary knowledge of Java , particularly for data type definitions within ODM tools ...

Data Solution Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
products and services powering Springer Nature’s researcher brands. **About you** You’re happy working across teams and departments to align and coordinate the development and delivery of data-centric solutions. You spot risks and opportunities and fill in the gaps between delivery teams. You help remove blockers throughout … solving complex problems and seek feedback to quickly arrive at the best result. **Role Responsibilities:** Coordinate across teams to ensure consistent data product development and utilisation, establishing and delivering the defined data architecture. This includes working with the Data Architect to understand team needs, use cases, and constraints ...

SC Cleared Tech Lead

Hiring Organisation
ARM
Location
Reading, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£585 - £630/day Inside IR35
initial 6 month contract. The selected candidate MUST HAVE CQRS experience and event-driven-architecture. Acts as the technical lead for backend development within a pod, specialising in event-driven architecture and CQRS-based systems. Core Skills:CQRS (non-negotiable), Event Sourcing, .NET/Java/Python, Azure Service … API Development, Distributed Systems Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more ...

Director Solution Specialist - Media Solutions

Hiring Organisation
Moody's
Location
Greater London, United Kingdom
Employment Type
Full Time
ability to analyze business processes and workflows, with a knack for identifying efficiency improvements Interest in learning or experience with Spark, SQL, Python for API development is highly encouraged, but not required Excellent communication and interpersonal skills, with the ability to engage effectively with both technical … closely with product and technical teams to understand architecture, capabilities, and integration across Moody’s offerings Act as a bridge between clients and product development teams, conveying feedback to support product enhancements and roadmap discussions This position offers a dynamic work environment, requiring up to 50% travel to engage ...

Senior Software Engineer - AI & Cloud Automation (London, Onsite)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
will work on automating engineering workflows, designing scalable cloud-native applications, and contributing to platform transformation projects. Strong skills in Python, cloud technologies, and API development are essential. #J-18808-Ljbffr ...