26 to 40 of 40 API Design Jobs in the South East

Solutions Architect

Hiring Organisation
Method-Resourcing
Location
St. Albans, Hertfordshire, South East, United Kingdom
Employment Type
Permanent
Salary
£95,000
Solutions Architect (Integration | API Design) St Albans (Hybrid) Compensation: £95,000 +Bonus +Equity Method Resourcing are proud to be partnering with a fast-growing, international technology business delivering critical services across multiple high-reliability sectors. They're seeking a Solutions Architect to lead the end-to-end technical … design of mission-critical platforms and services. The Role: We're seeking an experienced Solution Architect to design scalable, secure, and efficient technology solutions that support a major systems consolidation and migration programme. You will be responsible for planning and documenting the decommissioning of up to 30 disparate ...

Senior AI Engineer

Hiring Organisation
Chambers and Partners
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
drive smarter decisions and greater efficiency across Chambers and Partners. In this brand new role, role, as part of our Data team, you’ll design and implement intelligent systems that enhance how we use data, streamline operations, and power innovation across our digital platforms. You’ll play … Main Duties and Responsibilities Data & Retrieval Build robust ingestion pipelines for PDFs/Word/Excel/Audio/JSON and semi-structured sources. Design RAG systems: chunking strategies, document schemas, metadata, hybrid/dense retrieval, re-ranking, and grounding. Manage vector/keyword indexes (e.g., Azure AI Search ...

AppSec Engineer / Application Security Engineer

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £650 per day
strengths and weaknesses of each At least one programming language (e.g. Java, Go) At least one major cloud provider (e.g. AWS, GCP, Azure) REST API design HTTP Authentication Linux at the terminal, including scripting and automation (e.g. shell, Python) Some other highly valued skills may include: Experience with ...

Technical Architect

Hiring Organisation
Sphere Digital Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
office Technical Architect About the role This is a rare opportunity to join a government-backed initiative at a very early stage, helping to design and deliver a new digital platform that enables transparent licensing and ethical access to high-quality digital content at scale. We are assembling … that the platform is secure, intuitive, and reliable for all users. This is a hands-on architecture role focused on system design and technical delivery rather than business development or account management. The role also plays a key part in shaping the future technical service offering by applying lessons ...

Software Engineer

Hiring Organisation
Wave Talent
Location
Maidenhead, England, United Kingdom
Improving engineering practices and contributing to shared standards Sharing knowledge through documentation, pairing and onboarding support Technology environment Frontend: React, TypeScript, shared component libraries, design systems and accessible UI principles Backend: Node.js with TypeScript, REST APIs, SQL and NoSQL databases Infrastructure: Modern CI/CD pipelines, automated testing … ownership of engineering projects end-to-end Experience working across multiple services or codebases in a product team Good understanding of databases, integrations and API design Experience building secure, performant and observable systems Clear communication skills and the ability to explain technical decisions A collaborative, supportive approach with ...

Software Developer Apprentice

Hiring Organisation
QA
Location
Liphook, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£16,000 - £18,000 per annum
wide range of sectors. With recent expansion into the software development industry, we are now looking to grow our technical team to support the design, development, and long-term evolution of our in-house systems and customer-facing platforms. This includes the development of a modern ERP solution that … front-end development, to join our development team as part of a Level 3 Apprenticeship. The successful candidate will work directly on the design and development of a modern ERP system, contributing to core functionality used across the business. This is a hands-on role intended for individuals ...

Founding Engineer (Full Stack / Backend)

Hiring Organisation
Affinity Labs
Location
Slough, Berkshire, UK
Employment Type
Full-time
early-stage, hands-on role with significant autonomy and responsibility to drive backend product development, collaborating closely with founders, creators, and product/design to turn lean specs into reliable, scalable services. Responsibilities Implement features end-to-end on the backend (APIs → data models → integrations) and maintain quality while … z2bz0 years building production backends/services, with shipped work and clear ownership. Strong Python (FastAPI) and database skills (PostgreSQL/MongoDB); solid API design fundamentals. Familiarity with AWS serverless patterns and Docker for bespoke services; basic CI/CD concepts. Comfortable with Redis (caching/sessions ...

Site Reliability Engineer

Hiring Organisation
McGregor Boyall
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £95,000 per annum
SLOs, and participating in support rotas. Coding/scripting experience (Python/Bash) in a commercial setting. Database knowledge, streaming and batch operations, and API design. Good background with Kubernetes (ideally microservice architectures using Istio service mesh). Extensive experience with cloud-native solutions (ideally Google Cloud). Solid ...

Senior Software Engineer

Hiring Organisation
Bounce Digital
Location
Slough, Berkshire, UK
Employment Type
Full-time
Great Fit If You: Have 5+ years' experience building production-grade web apps with React + TypeScript Are comfortable across the stack - API design through to front-end polish Have experience with AWS or similar cloud infrastructure Care about ownership, quality, and impact Are curious about AI, automation ...

AI Engineer

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£250 - £300 per day
similarity matching- Context window management and chunking strategies MCP & Tool Integration:- Model Context Protocol (MCP) implementation- Tool calling and function integration with LLMs- API design for LLM tool interfaces- AWS Lambda integration with agents AI Safety & Evaluation:- Guardrail implementation (hallucination detection, toxicity filtering)- Response evaluation framework design ...

Senior React & Java Engineer - London

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£1 - £85,000 per annum
elevate team capability What we expect from you? Strong experience with React, TypeScript/JavaScript and another BE language such as Java Understanding of API design, integration and security Experience with relational databases A track record of delivering complex systems with clean architecture Interested in learning more ...

CTO

Hiring Organisation
Leo Technology
Location
Petersfield, Hampshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Seed to Series A) Hands-on expertise with OpenAI integrations or other LLM-based solutions Technical experience with Node.js, Python, and SQL Experience with API design and development for both internal and external use cases Knowledge of ISO/compliance Experience designing and scaling data pipelines and working ...

CTO05012026

Hiring Organisation
Leo Technology Limited
Location
Petersfield, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £120,000 per annum
Seed to Series A) Hands-on expertise with OpenAI integrations or other LLM-based solutions Technical experience with Node.js, Python, and SQL Experience with API design and development for both internal and external use cases Knowledge of ISO/compliance Experience designing and scaling data pipelines and working ...

Security Engineer

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £85,000 per annum, Inc benefits
monitoring solutions to improve visibility, reliability and overall platform performance Skills & Experience Required: Experience with cloud-native software development, including cloud infrastructure and API design (Azure preferred) Willingness to apply security and engineering expertise across multiple platforms, such as Azure and SaaS solutions Proven experience working with modern ...

Monitoring Tools Support, Assoc Manager / Specialist

Hiring Organisation
Accenture
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
Tooling Expertise: Use Prometheus, Grafana, and Dynatrace for data collection, visualisation, and deep-dive analysis. •Proficiency in Prometheus, Grafana, and Dynatrace. •Strong knowledge of API design, data modelling, and pipelines. •Experience with automation, monitoring platforms, and scripting languages (e.g., Python, PowerShell, Bash, Terraform and Ansible) to enhance operational ...