API Design Jobs in England

126 to 150 of 151 API Design Jobs in England

Integration Developer

Wolverhampton, West Midlands, England, United Kingdom
Harnham - Data & Analytics Recruitment
the business' operations Ideal Candidate: Solid commercial experience integrating software systems using C# and SQL Familiarity with ERP platforms (e.g., Epicor, Salesforce, SAP) Understanding of ETL, data consistency, and API design Comfort working in a small, collaborative team with exposure to senior stakeholders Tech Stack: Languages: C#, SQL Systems: Epicor P21, Magento, Salesforce Other: APIs, ETL, data warehousing More ❯
Employment Type: Full-Time
Salary: £40,000 - £45,000 per annum
Posted:

Data Science Lead

London, United Kingdom
Hybrid / WFH Options
Femtech Insider Ltd
development processes (principles, rules) for the team Coach the team to learn and apply engineering best practices in various areas starting from UI standards and CI/CD to API design and Secure SDLC Continue to form and grow your team - hire and onboard new members, perform training activities, help team members to follow their path for professional More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Front-End Blockchain Developer

London, United Kingdom
Hybrid / WFH Options
Supportwave Ltd
Collaborate with front-end and product teams to support fintech and blockchain functionality. Required Skills and Experience Solana: Minimum 4 years of experience Rust: Minimum 4 years of experience API Integration: Minimum 6 years of experience Blockchain: Minimum 6 years of experience Software Development: 10+ years of professional experience Platform Security and Databases: 7-10+ years of expertise … Language: English (Advanced proficiency) Nice-to-Have Skills Experience with DeFi Blockchain Proficiency in Node.js or Python Knowledge of secure API design or blockchain data indexing Additional Requirements Eligibility: Candidates must have the right to live and work in the UK. Work Arrangement: Preference for hybrid work in the UK, with flexibility for remote work. More ❯
Employment Type: Permanent, Work From Home
Salary: £90,000
Posted:

Full stack engineer - Amazon Lex experience

London, South East, England, United Kingdom
Computer Futures
Key Responsibilities Lead the design, development, and deployment of scalable full stack applications using React and AWS services. Collaborate with cross-functional teams including Product, Architecture, and Test to deliver high-quality software. Champion best practices in software engineering, including CI/CD, automated testing, and code reviews. Mentor junior engineers and contribute to a culture of continuous improvement. … Participate in sprint planning, technical design sessions, and architectural reviews. Required Skills & Experience Strong proficiency in React. Deep experience with AWS services such as Lambda, API Gateway, DynamoDB, S3, and CloudFormation. Solid understanding of TypeScript, Node.js, and RESTful API design. Familiarity with DevOps practices and tools (e.g., GitHub Actions, Terraform, CloudWatch). Experience working in Agile environments … ceremonies. Ability to challenge existing approaches and drive innovation within the team. Desirable Exposure to AWS AI services (e.g., Lex, Bedrock). Experience with serverless architectures and event-driven design patterns. Familiarity with containerization (Docker, ECS) and observability tooling. Team Fit A proactive mindset with a passion for mentoring and uplifting team performance. Strong communication skills and the ability More ❯
Employment Type: Contractor
Rate: £650 - £700 per day
Posted:

Full stack engineer - Amazon Lex experience

City of London, London, United Kingdom
Computer Futures
Key Responsibilities Lead the design, development, and deployment of scalable full stack applications using React and AWS services. Collaborate with cross-functional teams including Product, Architecture, and Test to deliver high-quality software. Champion best practices in software engineering, including CI/CD, automated testing, and code reviews. Mentor junior engineers and contribute to a culture of continuous improvement. … Participate in sprint planning, technical design sessions, and architectural reviews. Required Skills & Experience Strong proficiency in React. Deep experience with AWS services such as Lambda, API Gateway, DynamoDB, S3, and CloudFormation. Solid understanding of TypeScript, Node.js, and RESTful API design. Familiarity with DevOps practices and tools (e.g., GitHub Actions, Terraform, CloudWatch). Experience working in Agile environments … ceremonies. Ability to challenge existing approaches and drive innovation within the team. Desirable Exposure to AWS AI services (e.g., Lex, Bedrock). Experience with serverless architectures and event-driven design patterns. Familiarity with containerization (Docker, ECS) and observability tooling. Team Fit A proactive mindset with a passion for mentoring and uplifting team performance. Strong communication skills and the ability More ❯
Employment Type: Contract
Rate: £650 - £700/day
Posted:

Full Stack Engineer

Windsor, Berkshire, United Kingdom
Adecco
Job Title: Full Stack Engineer Location: Windsor, once per month Remuneration: £800 per day Contract Details: Fixed Term Contract (6 months) Responsibilities: Lead the design, development, and deployment of scalable full stack applications using React and AWS services. Collaborate with cross-functional teams including Product, Architecture, and Test to deliver high-quality software. Champion best practises in software engineering … including CI/CD, automated testing, and code reviews. Mentor junior engineers and contribute to a culture of continuous improvement. Participate in sprint planning, technical design sessions, and architectural reviews. Required Skills & Experience: Strong proficiency in React. Deep experience with AWS services such as Lambda, API Gateway, DynamoDB, S3, and CloudFormation. Solid understanding of TypeScript, Node.js, and RESTful … API design. Familiarity with DevOps practises and tools (e.g., GitHub Actions, Terraform, CloudWatch). Experience working in Agile environments and contributing to sprint ceremonies. Ability to challenge existing approaches and drive innovation within the team. Desirable: Exposure to AWS AI services (e.g., Lex, Bedrock). Experience with serverless architectures and event-driven design patterns. Familiarity with containerisation (Docker More ❯
Employment Type: Contract
Posted:

Quantitative Analytics Product Manager, Equity Content - CTO Office

London, United Kingdom
Avature
Business Area Engineering and CTO Ref # Description & Requirements Who we are: The Bloomberg CTO Office is the future-looking technical and product arm of Bloomberg L.P. We envision, design and prototype the next generation infrastructure, hardware, applications and APIs that interface in all aspects of the company including financial products, broadcast and media, data centers, internal IT and … A willingness to explore new concepts and continuous learning High degree of empathy with our clients and their challenges We'd love to see: Technical proficiency (eg understanding of API design, system architecture) Knowledge of at least one non-trivial financial dataset, concepts and its manipulation (eg point-in-time fundamentals, derivatives, capital structure More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Quantitative Analytics Product Manager, Equity Content - CTO Office London, GBR

London, United Kingdom
Bloomberg L.P
Business Area Engineering and CTO Ref # Description & Requirements Who we are: The Bloomberg CTO Office is the future-looking technical and product arm of Bloomberg L.P. We envision, design and prototype the next generation infrastructure, hardware, applications and APIs that interface in all aspects of the company including financial products, broadcast and media, data centers, internal IT and … A willingness to explore new concepts and continuous learning High degree of empathy with our clients and their challenges We'd love to see: Technical proficiency (eg understanding of API design, system architecture) Knowledge of at least one non-trivial financial dataset, concepts and its manipulation (eg point-in-time fundamentals, derivatives, capital structure) Bloomberg is an equal More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer, Backend (Payments)

London, United Kingdom
Duffel
is absolutely fine. What's more important is your general engineering ability rather than your knowledge of a particular language or framework. - A high bar in code quality and API design. - Opinions on what good engineering standards and processes look like as we define ours at Duffel. - Big-picture thinking - you can make trade-offs on technical work streams More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Security Engineer

TN2, Royal Tunbridge Wells, Kent, United Kingdom
Red - Specialist Recruitment
s working locations include Tunbridge Wells, Leeds, Bristol and Bournemouth. THE SUCCESSFUL APPLICANT Engineering expertise in complicated Salesforce environments Exposure to Cloud Native software development, including cloud infrastructure and API design (Azure preferred) Proven experience applying modern standards such as OWASP CI/CD, DSOMM, SAMM etc Strong networking protocol knowledge (TCP/IP, UDP, HTTP/… AMQP, streaming protocols etc), cloud network design (VPNs, subnets, regions/zones etc), and integration related technologies (Auth0, APIM) Expertise with SAST & SCA systems such as Snyk, Checkmarx Experience with DAST systems such as OpenZAP, Qualys DAST (preferred) ideally with HTTP APIs Ability to manage large scale software estates from a operational perspective (build, release, monitoring, rollbacks, high availability More ❯
Employment Type: Permanent
Posted:

WebMethods Developer

England, United Kingdom
Hybrid / WFH Options
Experis IT
clearance , we are keen to hear from you. What you'll be doing: Designing and developing new integrations using WebMethods Supporting the full life cycle of integrations from technical design to development and testing Working across a range of internal and third-party systems Collaborating with architects and other developers to ensure robust, secure integration solutions What we're … looking for: Strong experience with WebMethods Integration Server Experience with API design and integration General experience in system integration and Middleware development Ability to produce and interpret technical designs and documentation Desirable experience: Experience with Axway API Gateway would be a distinct advantagebut not essential Why apply? Long-term programme with strong pipeline of upcoming work Fully More ❯
Employment Type: Contract
Rate: GBP 450 - 560 Daily
Posted:

Product Manager - B2B - Wallet to bank open loop

London, South East, England, United Kingdom
Hydrogen Group
lead the development of a new wallet-to-bank payment experience for business customers. This role sits at the heart of their B2B payments innovation agenda, combining product strategy, API design, and a highly user-focused interface built into a global platform. Dual Workstreams: API-Led Payments Infrastructure New Wallet-to-Bank Experience Experience needed: 7+ years More ❯
Employment Type: Contractor
Rate: £800 - £825 per day
Posted:

CRM Architect

Chester, Cheshire, North West, United Kingdom
Hybrid / WFH Options
Searchability (UK) Ltd
integrated platforms that deliver operational clarity and real commercial outcomes. As they expand to support increasingly technical projects, they're now looking for a Solutions Architect to lead the design and architecture of integrated systems across CRM and broader technology stacks. A GLIMPSE AT THE BENEFITS/CULTURE: Private medical plans and dedicated wellbeing services Hybrid working model … someone who excels at translating ambiguity into actionable technical plans. KEY SKILLS/EXPERIENCE: Proven experience in a Solutions Architect or equivalent role Strong background in post-sale system design and integration architecture Experience with CRM platforms (HubSpot, Salesforce, etc.), ERP, or operational systems Expertise in data modelling, APIs, middleware orchestration, and integration governance Skilled in producing technical artefacts … to process & submit (subject to required skills) your application to our client in conjunction with this vacancy only. KEY SKILLS: Solutions Architect/System Integration/CRM Replatforming/API Design/Data Modelling/HubSpot/SaaS/Change Management/Hybrid Working/Chester More ❯
Employment Type: Permanent, Work From Home
Salary: £70,000
Posted:

CRM Architect

birkenhead, north west england, united kingdom
Hybrid / WFH Options
Searchability (UK) Ltd
integrated platforms that deliver operational clarity and real commercial outcomes. As they expand to support increasingly technical projects, they're now looking for a Solutions Architect to lead the design and architecture of integrated systems across CRM and broader technology stacks. A GLIMPSE AT THE BENEFITS/CULTURE: Private medical plans and dedicated wellbeing services Hybrid working model … someone who excels at translating ambiguity into actionable technical plans. KEY SKILLS/EXPERIENCE: Proven experience in a Solutions Architect or equivalent role Strong background in post-sale system design and integration architecture Experience with CRM platforms (HubSpot, Salesforce, etc.), ERP, or operational systems Expertise in data modelling, APIs, middleware orchestration, and integration governance Skilled in producing technical artefacts … to process & submit (subject to required skills) your application to our client in conjunction with this vacancy only. KEY SKILLS: Solutions Architect/System Integration/CRM Replatforming/API Design/Data Modelling/HubSpot/SaaS/Change Management/Hybrid Working/Chester JBRP1_UKTJ More ❯
Posted:

CRM Architect

warrington, cheshire, north west england, united kingdom
Hybrid / WFH Options
Searchability (UK) Ltd
integrated platforms that deliver operational clarity and real commercial outcomes. As they expand to support increasingly technical projects, they're now looking for a Solutions Architect to lead the design and architecture of integrated systems across CRM and broader technology stacks. A GLIMPSE AT THE BENEFITS/CULTURE: Private medical plans and dedicated wellbeing services Hybrid working model … someone who excels at translating ambiguity into actionable technical plans. KEY SKILLS/EXPERIENCE: Proven experience in a Solutions Architect or equivalent role Strong background in post-sale system design and integration architecture Experience with CRM platforms (HubSpot, Salesforce, etc.), ERP, or operational systems Expertise in data modelling, APIs, middleware orchestration, and integration governance Skilled in producing technical artefacts … to process & submit (subject to required skills) your application to our client in conjunction with this vacancy only. KEY SKILLS: Solutions Architect/System Integration/CRM Replatforming/API Design/Data Modelling/HubSpot/SaaS/Change Management/Hybrid Working/Chester JBRP1_UKTJ More ❯
Posted:

Senior Android Engineer

London, United Kingdom
Gener8
big impact in a rapidly growing business for a completely new category of product. Working as part of our existing engineering team, you'll be actively influencing technical discussions, API designs, and app architecture as we iterate rapidly to deliver great new features to our customers. You'll be using 100% Kotlin in your day-to-day work. Our More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Head of Mobile Engineering

London, United Kingdom
Gener8
a big impact in a rapidly growing business for a completely new category of product. Working with our existing mobile engineering team, you'll be actively driving technical discussions, API designs, and app architecture and being hands-on delivering features from end-to-end as we iterate rapidly to delight our customers with new features. Our Android app is More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Tools Engineer (SDK) - Hertfordshire

London, United Kingdom
microTECH Global Limited
Familiarity with RISC-V development tools (preferred) Strong programming skills in multiple languages (C/C++, Python, etc.) Understanding of compiler and linker technologies Experience with developer documentation and API design BS/MS in Computer Science or related field More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Web3 Technical Business Analyst

London Area, United Kingdom
EMURGO
Confluence, ensuring alignment across Product and Engineering. Act as a liaison between technical teams and non-technical stakeholders to ensure a shared understanding of implementation details and impact. Support API design and documentation efforts, ensuring internal and third-party APIs are clearly defined, versioned, and well-integrated. Contribute to platform consistency by identifying patterns, redundancies, or gaps in More ❯
Posted:

Web3 Technical Business Analyst

City of London, London, United Kingdom
EMURGO
Confluence, ensuring alignment across Product and Engineering. Act as a liaison between technical teams and non-technical stakeholders to ensure a shared understanding of implementation details and impact. Support API design and documentation efforts, ensuring internal and third-party APIs are clearly defined, versioned, and well-integrated. Contribute to platform consistency by identifying patterns, redundancies, or gaps in More ❯
Posted:

Lead Java Developer

Waterlooville, Hampshire, South East, United Kingdom
Hybrid / WFH Options
ClearCourse
line management and performance reviews Addressing 3rd line support issues and acting proactively to reduce support requests Resolving conflicts within the internal and/or wider teams Producing detailed design and documentation Running Jira and Agile ceremonies Working with the product manager to plan sprints and prioritize workload for team members Build and maintain robust, secure, and maintainable software … e.g. JPA/Hibernate). Relational Databases like MSSQL, PostgreSQL or MySQL. Others: Git, REST APIs, Docker, CI/CD pipelines, testing frameworks. Solid understanding of RESTful services and API design. Strong understanding of software design principles (SOLID, DRY or Clean Code). Comfortable navigating and maintaining legacy systems when needed. Experience writing unit and integration tests using More ❯
Employment Type: Permanent, Work From Home
Posted:

Principal Solutions Architect

London, United Kingdom
Hybrid / WFH Options
Parser Limited
and developing scalable data platforms. This role requires leadership skills, cross-functional collaboration, and the ability to drive the development of a new global data platform. Key Responsibilities Architectural Design in cloud based environments: Develop and implement robust IT architecture strategies for cloud and hybrid environments, leveraging AWS best practices. Design scalable, secure, and high-availability solutions tailored … data collection, storage, and processing. Implement and manage cloud-native services, including compute, storage, databases (SQL & NoSQL), and serverless architectures. Ensure cost-efficient and optimized cloud usage. Networking Focus: Design and implement secure networking solutions using AWS networking services such as VPCs, Transit Gateway, Direct Connect, VPN, Route 53, and CloudFront. Configure and troubleshoot complex networking scenarios, including hybrid … cloud setups. Manage network performance and security standards, including SLAs, bandwidth, latency, and IPSec VPN configurations. Data Platform Implementation: Lead the design and development of a new global data platform (PaaS) Ensure scalable storage solutions (data lakes, data warehouses) to handle structured and unstructured data. Implement ETL/ELT pipelines using Dagster, Airflow, or similar tools. Optimize performance and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

OTC Developer - Financial Services

London, United Kingdom
Hamilton Barnes Associates Limited
contributing to the development and support of a multi-language technology stack that powers global trading operations. The role involves collaborating with software engineers, traders, and quantitative researchers to design full-stack software systems such as trading systems, exchange connectivity solutions, and monitoring platforms. The technology stack includes Java, C++, and Python. This is an excellent opportunity to contribute … to global trading solutions while leveraging cutting-edge technology. Role: Manage and maintain cutting-edge software systems supporting 24/7 global trading. Design and implement full-stack systems Predominately work across Java. Conduct comprehensive testing at unit, functional, and integration levels. Tackle both legacy code enhancements and greenfield development. Qualifications: Proven experience designing, developing, and maintaining mission-critical … high-performance applications. 5+ years of professional experience with Java Knowledge of network communication protocols Hands-on experience with inter-process messaging, microservices architecture, and API design. Salary: Up to £250,000 Total Comp (Depending on experience More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer, Backend

London, United Kingdom
Duffel
tools to simplify travel distribution, search and booking. What does this actually mean? It's one common and seamless API. This brings huge technical challenges as we need to design and build a beautiful API before integrating to hundreds of airlines. Along with that we need to navigate through the differing needs and systems of each airline whilst … is absolutely fine. What's more important is your general engineering ability rather than your knowledge of a particular language or framework. - A high bar in code quality and API design. - Opinions on what good engineering standards and processes look like as we define ours at Duffel. - Big picture thinking - you can make trade offs on technical work streams More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

PHP Software Developer

Crewe, Cheshire, North West, United Kingdom
Acorn by Synergie
PHP Developer Crewe, Cheshire | £35,000 - £40,000 | Permanent | Office-Based | On behalf of our client, Acorn By Synergie are working with a growing business based in Crewe that's looking for a talented PHP Developer to join their in More ❯
Employment Type: Permanent
Salary: £45,000
Posted:
API Design
England
10th Percentile
£50,000
25th Percentile
£59,375
Median
£77,500
75th Percentile
£87,813
90th Percentile
£110,000