51 to 75 of 371 API Design Jobs in England

Advisory Software Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
partner ecosystems. The position also plays a key role in shaping industry best practices and representing the organisation externally. Key Responsibilities Enterprise & Ecosystem Architecture Design and oversee the implementation of enterprise-wide software architecture, spanning internal platforms, cloud environments, and external partner ecosystems Develop “big picture” architectural frameworks … adherence to security, compliance, regulatory, and quality standards Identify and mitigate long‐term architectural risks (e.g., vendor lock-in, scalability constraints, regulatory exposure) Technical Design & Solution Development Conduct research, analyse data, gather requirements, and define end‐to‐end solutions Create architectural artefacts representing system functions, integrations, and user interfaces ...

Staff Product Manager - API Connectivity

Hiring Organisation
ebury
Location
London, United Kingdom
Salary
£ 80 K
operate globally, get in touch - we’d love to discuss how Ebury can accelerate your career so you can shape the future.Staff Product Manager - API ConnectivityProduct Ebury London Office - Hybrid: 4 days in the office, 1 day working from home per weekWe are looking for an experienced Product Manager … API Connectivity with ERP and accounting platforms. This role will lead the strategy, delivery, and evolution of integrations with systems such as Sage, QuickBooks, and ERP aggregators (e.g. Codat, Merge, Apideck).You will be responsible for building scalable, high-quality integrations that power financial workflows for our partners ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Full Stack Engineer with a strong back‐end focus to join one of our Profile domain product teams. This role is full stack by design: you will work across back‐end and front‐end codebases, contributing to end‐to‐end product delivery. However, your primary strength will … front end. You will join an established, autonomous product team owning their product end‐to‐end, with real ownership over technical design, implementation, and continuous improvement. Your responsibilities Design, build and evolve scalable back-end services using C# and .NET Core, alongside developing front-end features with modern ...

Senior Software Engineer, Inference Platform

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
after you’re helping with UI/UX, customer success, documentation and product ops. What You’ll Do Inference Platform Architecture & Core Services Design and build the company's inference service platform the backbone for serving AI models at scale across diverse workloads Own and architect core platform components … Gateway, Resource Orchestrator, Runtime Engines, and Autoscaler Design highly modular, scalable, and extensible low‐level designs (LLDs) for inference infrastructure components Lead high‐level design discussions, establish architectural patterns, and drive technical decision‐making for the inference stack Model Deployment & Lifecycle Management Understand and optimize the dynamics ...

Principal Platform Engineer

Hiring Organisation
Jobleads-UK
Location
Sunbury-on-Thames, England, United Kingdom
target architecture, and a credible transition path — enabling bp's engineering platforms and SaaS solutions to operate as an integrated whole. Lead architectural design and decision-making at the intersection of internal platforms and enterprise SaaS, establishing integration patterns, data contracts, and governance standards that apply consistently across … platform estate. Act as the principal technical authority for platform engineering across the digital delivery organisation, providing expert guidance on platform design, cloud-native patterns, and systems integration to engineering teams and senior stakeholders. Drive resolution of complex cross-platform integration challenges, including identity, data flow, event-driven architecture ...

Senior Java Engineer (AWS, REST, SOAP) – Hybrid – Sussex

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
engineering discipline, independent problem‐solving ability, and a commitment to building robust, scalable systems. You will work across modern cloud‐native architectures, contribute to API and microservices development, and help drive best practices across the engineering organisation. Key Responsibilities Design, develop, and maintain high‐quality Java applications using … Spring Boot. Build and optimise RESTful APIs and contribute to GraphQL service development. Develop cloud‐native solutions using AWS services such as Lambda, API Gateway, DynamoDB, ECS, S3, and others. Contribute to microservices architecture, event‐driven systems, and distributed design patterns. Implement CI/CD pipelines using tools ...

Senior Full Stack Node Developer

Hiring Organisation
Jobleads-UK
Location
Leeds, England, United Kingdom
sector clients. We are recruiting for a Senior Full Stack Node Developer to join our Hippo Herd. We work at the intersection of strategy, design, and technology to solve complex problems and create lasting value. Our collaborative and agile culture empowers our teams to make a genuine impact. … play an important role in making Hippo the best Consultancy out there. You will work as part of a multi-disciplinary team combining data, design, product, delivery, analysis and engineering to deliver bespoke digital services that make a positive and meaningful impact on organisations and society. We're confident ...

Java API Developer, Officer

Hiring Organisation
State Street Bank
Location
London, United Kingdom
Salary
£ 80 K
Role Summary :We are seeking a Java API Developer to join our Digital Asset development team. This is a hands-on software engineering role responsible for designing, developing, testing, and supporting RESTful APIs and backend services in a financial services environment. The role contributes to building reliable, secure … will work closely with cross-functional teams to build robust, scalable, and secure digital asset products that meet our business and technical requirements.Role Description :Design, develop, and maintain Java-based backend services and REST APIs that support financial services workflows and data use cases.Implement APIs in line with internal ...

Senior Full Stack/Native Cloud Engineer (Vice President)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
technology stack, from backend services and distributed data architecture through to responsive user interfaces, production support, and engineering best practice. Key Responsibilities Lead the design, development, and delivery of backend services and platform components using Java 8+/Spring Boot and Python/FastAPI. Build, enhance, and operate event … driven, real‐time data pipelines using Kafka and related streaming technologies. Provide deep technical expertise in distributed systems, data architecture, and scalable platform design. Design, implement, and maintain Java‐based APIs and microservices, including REST, OpenAPI, GraphQL, and gRPC services. Work with modern data technologies including PostgreSQL, MongoDB ...

Senior Full Stack/Native Cloud Engineer (Vice President)

Hiring Organisation
Jefferies Financial Group
Location
London, United Kingdom
Salary
£ 100 K
full technology stack, from backend services and distributed data architecture through to responsive user interfaces, production support, and engineering best practice.Key ResponsibilitiesLead the design, development, and delivery of backend services and platform components using Java 8+/Spring Boot and Python/FastAPI. Build, enhance, and operate event-driven … real-time data pipelines using Kafka and related streaming technologies. Provide deep technical expertise in distributed systems, data architecture, and scalable platform design. Design, implement, and maintain Java-based APIs and microservices, including REST, OpenAPI, GraphQL, and gRPC services. Work with modern data technologies including PostgreSQL, MongoDB, and Amazon ...

Senior Full Stack Node Developer

Hiring Organisation
Hippo Digital
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 60 K
sector clients. We are recruiting for a Senior Full Stack Node Developer to join our Hippo Herd. We work at the intersection of strategy, design, and technology to solve complex problems and create lasting value. Our collaborative and agile culture empowers our teams to make a genuine impact.As … play an important role in making Hippo the best Consultancy out there. You will work as part of a multi-disciplinary team combining data, design, product, delivery, analysis and engineering to deliver bespoke digital services that make a positive and meaningful impact on organisations and society. We're confident ...

Senior Full Stack Node Developer

Hiring Organisation
Hippo Digital
Location
Leeds, West Yorkshire, United Kingdom
Salary
£ 60 K
sector clients. We are recruiting for a Senior Full Stack Node Developer to join our Hippo Herd. We work at the intersection of strategy, design, and technology to solve complex problems and create lasting value. Our collaborative and agile culture empowers our teams to make a genuine impact.As … play an important role in making Hippo the best Consultancy out there. You will work as part of a multi-disciplinary team combining data, design, product, delivery, analysis and engineering to deliver bespoke digital services that make a positive and meaningful impact on organisations and society. We're confident ...

Senior Full Stack Node Developer

Hiring Organisation
Hippo Digital
Location
Birmingham, West Midlands (County), United Kingdom
Salary
£ 60 K
sector clients. We are recruiting for a Senior Full Stack Node Developer to join our Hippo Herd. We work at the intersection of strategy, design, and technology to solve complex problems and create lasting value. Our collaborative and agile culture empowers our teams to make a genuine impact.As … play an important role in making Hippo the best Consultancy out there. You will work as part of a multi-disciplinary team combining data, design, product, delivery, analysis and engineering to deliver bespoke digital services that make a positive and meaningful impact on organisations and society. We're confident ...

Senior Manager- Software Engineering

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
will be a hands‐on technical leader who defines direction, raises engineering standards, and delivers measurable product outcomes, all while remaining deeply involved in design and development. This is not a traditional people‐management or delivery‐management role—here, you will write code, architect solutions, lead complex projects … role is perfect for leaders seeking high‐growth, product‐driven environments, who are passionate about distributed systems, and who want to directly influence the design of secure, scalable, and resilient infrastructure while cultivating top engineering talent. What You’ll Do: Architect and design scalable, resilient, high‐performance backend ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Defence delivery team. This is a versatile, high-impact role designed for funded client delivery: you will build mission-critical web applications and API backends for central MoD programmes, while contributing to low-level system integrations (Kotlin, Android ART, IPC/AIDL) on tactical edge and Situational Awareness … platforms. You will sit at the intersection of modern enterprise software engineering and tactical edge integration, ensuring all code meets MoD Secure by Design (SbD) principles and Def Stan 00-056 safety boundaries. Full-Stack Application Development: Design and build resilient, secure web applications, microservices, and APIs (TypeScript ...

Senior Software Engineer - API Enterprise - Full-Stack

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
NVIDIA DGX SuperPODs to delivering real‐time Language AI to over 300 million users and 200,000+ businesses globally. You will join the API Enterprise team. We sit at the intersection of DeepL's API platform and our Enterprise ecosystem. Whereas the Core team obsesses over the self … that enterprise IT and security teams depend on. We work hand‐in‐hand with a wide set of stakeholder teams to make DeepL's API the obvious and safe choice for global enterprises. We are shifting gears. We are moving from "Software-First" to "Product-First. ...

Senior Software Engineer | API Enterprise | Full-Stack

Hiring Organisation
DeepL
Location
London, United Kingdom
Salary
£ 80 K
NVIDIA DGX SuperPODs to delivering real-time Language AI to over 300 million users and 200,000+ businesses globally.You will join the API Enterprise team. We sit at the intersection of DeepL's API platform and our Enterprise ecosystem. Whereas the Core team obsesses over the self-service … that enterprise IT and security teams depend on. We work hand-in-hand with a wide set of stakeholder teams to make DeepL's API the obvious and safe choice for global enterprises.We are shifting gears. We are moving from "Software-First" to "Product-First." We don't hire ...

Fullstack Engineer (Backend)

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £550/day
Opportunity You will join a high-impact development squad building commercial offerings on top of the thriving open-source Backstage framework. You will design and build backend systems, APIs, and developer portals that elevate the developer experience across external commercial clients and internal engineering teams alike. Your Impact Backend … API Systems: Design, build, and maintain scalable backend services and APIs primarily using TypeScript, Node.js, and modern web technologies. Developer Experience & Infrastructure: Build and operate infrastructure, developer toolsets, and CI/CD deployment pipelines to streamline engineering workflows. Engineering Excellence: Elevate code quality through technical RFCs, code reviews ...

Solution Architect

Hiring Organisation
Solirius Consulting
Location
London, United Kingdom
Salary
£ 80 K
DescriptionAbout usSolirius Reply, part of the Reply Group, is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery.We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. By combining deep technical … expertise with people-centred design, we create solutions that deliver meaningful, lasting impact.Our consultants partner directly with client teams, embedding into organisations to understand their goals, challenges, and users. This collaborative approach enables us to deliver tailored solutions that drive measurable outcomes across public and private sectors.Past and present ...

Solution Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Solirius Reply, part of the Reply Group, is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery. We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. By combining deep technical … expertise with people-centred design, we create solutions that deliver meaningful, lasting impact. Our consultants partner directly with client teams, embedding into organisations to understand their goals, challenges, and users. This collaborative approach enables us to deliver tailored solutions that drive measurable outcomes across public and private sectors. Past ...

Solution Architect - PERM OPPORTUNITY - SC REQUIRED

Hiring Organisation
Solirius Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 85,000 - 95,000 Annual
Solirius Reply, part of the, Reply Group is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery. We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. By combining deep technical … expertise with people-centred design, we create solutions that deliver meaningful, lasting impact. Our consultants partner directly with client teams, embedding into organisations to understand their goals, challenges, and users. This collaborative approach enables us to deliver tailored solutions that drive measurable outcomes across public and private sectors. Past ...

Python Application Developer with DevOps

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
environment Qualifications Hands-on experience in production environments as a Software Developer and DevOps/Platform Engineer Strong production experience with Python and software design patterns (SOLID, DRY) Expertise in AWS (or similar cloud providers), Containerization and Kubernetes Deep understanding of RESTful API or GraphQL API design ...

Python Application Developer with DevOps

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
team? Hands-on experience in production environments as a Software Developer and DevOps/Platform Engineer Strong production experience with Python and software design patterns (SOLID, DRY) Expertise in AWS (or similar cloud providers), Containerization and Kubernetes Deep understanding of RESTful API or GraphQL API design ...

Senior Full Stack Developer (React, JavaScript & C#.NET)

Hiring Organisation
Pontoon
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£650 per day
Python (pyspark): Experience with data pipelines and analytics is a plus. Power BI: Familiarity with developing dashboards and data models. Architecture: Knowledge of microservices, API design, and event-driven architectures. DevOps/CI/CD: Experience with Azure DevOps, GitLab, GitHub Actions, or similar tools. Cloud Platforms: Proficient … Azure or AWS (Azure preferred). Databases: Strong skills in SQL Server, PostgreSQL, or other relational databases. Key Responsibilities Design & Develop: Create and maintain full stack applications using React JS and C#.NET Core. Build Services: Develop high-performance backend services and RESTful APIs with a focus on scalability ...

Senior Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
solutions and enabling tangible value through technology. This role is a full-stack engineering role (covering frontend, backend, data, infrastructure) and collaborates on solution design, implementation, deployment, testing and support.**Responsibilities:*** Design, build, and improve modern application services that support a strategic business platform, with a focus … strong track record of delivering production systems.* Strong experience building backend applications and APIs, ideally in Java* Practical experience across service-based architecture, API design, integration patterns, and modern web application delivery.* Experience contributing to modernisation or platform evolution initiatives is strongly desirable.* Strong engineering discipline across testing ...