Remote API Design Jobs in London

1 to 25 of 33 Remote API Design Jobs in London

Lead Java Developer

London Area, United Kingdom
Hybrid / WFH Options
James Adams
drive technical excellence, establish coding standards, and optimise real-time services for a fast-growing platform. You’ll be responsible for backend architecture, microservices design, database management (SQL), and cloud integration (AWS) while collaborating with designers, engineers, and product teams to deliver world-class gaming solutions. Key Responsibilities ✔ Develop … Lead – Drive the development of scalable, interactive gaming products using Java (11+), Scala & Spring Boot . ✔ Microservices & API DesignDesign and implement modular microservices architecture with 3-tier API design . ✔ Cloud & DevOps – Work within an AWS environment (supported by an in-house DevOps team … experience (currently using Java 21). ✅ SQL Database Proficiency – Strong experience with SQL databases (PostgreSQL preferred). ✅ Microservices & Cloud – Deep knowledge of microservices architecture, API design, and AWS . ✅ Spring Boot & Scala – Nice to have but not essential. ✅ Betting, Gaming, or Big Data Background – Experience in real-time More ❯
Posted:

Lead Java Developer

london, south east england, united kingdom
Hybrid / WFH Options
James Adams
drive technical excellence, establish coding standards, and optimise real-time services for a fast-growing platform. You’ll be responsible for backend architecture, microservices design, database management (SQL), and cloud integration (AWS) while collaborating with designers, engineers, and product teams to deliver world-class gaming solutions. Key Responsibilities ✔ Develop … Lead – Drive the development of scalable, interactive gaming products using Java (11+), Scala & Spring Boot . ✔ Microservices & API DesignDesign and implement modular microservices architecture with 3-tier API design . ✔ Cloud & DevOps – Work within an AWS environment (supported by an in-house DevOps team … experience (currently using Java 21). ✅ SQL Database Proficiency – Strong experience with SQL databases (PostgreSQL preferred). ✅ Microservices & Cloud – Deep knowledge of microservices architecture, API design, and AWS . ✅ Spring Boot & Scala – Nice to have but not essential. ✅ Betting, Gaming, or Big Data Background – Experience in real-time More ❯
Posted:

Senior Backend Engineer (Laravel) - PropTech Startup

London, United Kingdom
Hybrid / WFH Options
Story Terrace Inc
product success. Core Technical Skills: Expert understanding of Laravel 8.x framework Strong proficiency in PHP 8.3+ Object-Oriented Programming (OOP) principles SOLID principles and design patterns Laravel Ecosystem Knowledge: Laravel Passport, Laravel Horizon, Laravel Dusk, Laravel Pint Database & ORM: MySQL/PostgreSQL, Eloquent ORM, database optimisation, migrations, and seeders … API Development: RESTful API design principles, API authentication and authorisation, JWT implementation, API documentation, API versioning, API testing Third-Party Integrations: Experience with various external services, understanding of webhooks and event handling Testing & Quality Assurance: PHPUnit for unit testing, mocking, and testing strategies More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Technical Product Manager London, UK

London, United Kingdom
Hybrid / WFH Options
Trudenty
as a mix from office and home. The Role We are seeking a Technical Product Manager with a deep understanding of technology and product design, who can bridge the gap between engineering and business. In this role, you will own and drive the evolution of our product offerings - from … ideation and design through implementation and delivery - and ensure our solutions are technically robust, user-centric, and commercially viable. This is a high-impact role requiring a strategic thinker with strong technical acumen and experience in payments and/or fraud prevention. You'll work closely with cross-functional … you will do Solutions & Integrations : Drive product integrations with merchants, ecommerce platforms, and payment stacks. Translate partner needs into technical requirements and oversee the API design process to ensure robust, scalable, and secure solutions. Provide technical guidance to customers and partners during integration and ensure documentation is clear More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Backend Software Engineer

London, United Kingdom
Hybrid / WFH Options
Computer Futures / SThree Group
our cross-functional team of Frontend Developers, QA Engineers, and DevOps Engineers to build secure, scalable microservices that revolutionize clinical research applications. You'll design REST API endpoints, develop relational database schemas, and work within a containerized microservice platform. Key Responsibilities: Design & Implement : Craft REST APIs using … pipelines. Mentorship : Coach junior and mid-level engineers. Agile : Actively participate in Agile ceremonies. What You Bring: Expertise : 5+ years of experience in REST API design using C# and .NET Core SDK. Testing Pro : Proficient in writing unit and integration tests with xUnit, Moq, SpecFlow, etc. Clear Communicator … Ability to explain and document complex concepts clearly. Architecture Knowledge : Understanding of microservice architecture. API Standards : Experience with Swagger/Open API specification and documentation. Security Savvy : Strong knowledge of endpoint and data security standards, including OAuth2. Cloud Experience : Working knowledge of cloud platforms like Azure. DevOps & Containers More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer

London, United Kingdom
Hybrid / WFH Options
Pod Point, Ltd
AWS ecosystem including, ECS, RDS, Lambda, SQS and Streaming services. Familiarity with Terraform and/or other IaaS models. Good understanding of OOP principles, design patterns, API design and event-driven architecture. Strong experience in modern development practices, such as agile, lean and continuous delivery. Perks that More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Solutions Architect

London Area, United Kingdom
Hybrid / WFH Options
Impellam Group
to define target state architecture and roadmap. Transactional Banking Experience (Payments, Governance, Compliance) Proficient in defining the target state architecture, roadmap and high-level design for the assigned scope based on business outcomes and aligned with the bank's strategy. The target state architecture and solution should cover all … Proficient in Cash Management & Liquidity domain along with deep understanding of integration to Payments and Core Banking platforms. Proficient in Cloud Native Architecture, Microservices design patterns, API design, Event-Driven Architecture and Database concepts. Expected to have good understanding of monolithic to microservices migration. Responsibilities – Current state More ❯
Posted:

Solutions Architect

london, south east england, united kingdom
Hybrid / WFH Options
Impellam Group
to define target state architecture and roadmap. Transactional Banking Experience (Payments, Governance, Compliance) Proficient in defining the target state architecture, roadmap and high-level design for the assigned scope based on business outcomes and aligned with the bank's strategy. The target state architecture and solution should cover all … Proficient in Cash Management & Liquidity domain along with deep understanding of integration to Payments and Core Banking platforms. Proficient in Cloud Native Architecture, Microservices design patterns, API design, Event-Driven Architecture and Database concepts. Expected to have good understanding of monolithic to microservices migration. Responsibilities – Current state More ❯
Posted:

Security Architect

London Area, United Kingdom
Hybrid / WFH Options
Merlin Entertainments
Entertainments as we transform the future of digital guest experiences across our iconic global attractions. We’re seeking a talented Security Solutions Architect to design and deliver secure, scalable, and cloud-native microservices architectures that power engaging, seamless experiences for millions of guests worldwide. About the Role This is … microservices systems. Define service boundaries, orchestration strategies, and ensure architectural alignment with business goals. Champion best practices in security, performance, and cloud-native development. Design and implement solutions within AWS, Azure, or GCP environments. Establish CI/CD pipelines, containerisation strategies, and DevOps automation practices. Introduce and manage telemetry … Extensive experience designing and implementing enterprise-grade microservices architectures. Strong software development background (Java, .NET, Python) with architectural leadership. Deep understanding of microservices principles, API design, and domain-driven design. Proficient in cloud platforms (AWS, Azure, GCP) and modern DevOps tooling (e.g., Terraform, Jenkins, Kubernetes). Hands-on More ❯
Posted:

Security Architect

london, south east england, united kingdom
Hybrid / WFH Options
Merlin Entertainments
Entertainments as we transform the future of digital guest experiences across our iconic global attractions. We’re seeking a talented Security Solutions Architect to design and deliver secure, scalable, and cloud-native microservices architectures that power engaging, seamless experiences for millions of guests worldwide. About the Role This is … microservices systems. Define service boundaries, orchestration strategies, and ensure architectural alignment with business goals. Champion best practices in security, performance, and cloud-native development. Design and implement solutions within AWS, Azure, or GCP environments. Establish CI/CD pipelines, containerisation strategies, and DevOps automation practices. Introduce and manage telemetry … Extensive experience designing and implementing enterprise-grade microservices architectures. Strong software development background (Java, .NET, Python) with architectural leadership. Deep understanding of microservices principles, API design, and domain-driven design. Proficient in cloud platforms (AWS, Azure, GCP) and modern DevOps tooling (e.g., Terraform, Jenkins, Kubernetes). Hands-on More ❯
Posted:

Lead Software Development Engineer

London, United Kingdom
Hybrid / WFH Options
SPD Technology
. Postgres, Docker, Prometheus, K8s, Elastic. Team Stream Development Lead, 2 BE, 1 FE, 1 SDET As a qualified expert, You will Help architect, design, and develop complex, large-scale systems Identify opportunities to adopt innovative technologies Create architectures and diagrams that describe them Work on and provide guidance … for microservice REST API design Write key algorithms to maximize scalability and reliability Write code and unit tests Conduct code reviews Diagnose complex problems involving multiple systems and technologies Provide guidance and mentorship to a team of talented software engineers Be an example of engineering excellence Communicate with More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Java Developer - Front Office/OTC

London Area, United Kingdom
Hybrid / WFH Options
Roc Search
Type: Permanent Location: London/Hybrid Salary: £150,000-£200,000 (DOE) - Upto £300,000 Total comp Skills: Java, C++, Python, Low Latency, Microservices, API's, Functional programming, OTC, Crypto Assets Roc Search have partnered with a well established trading firm with over 30 years of experience bringing technology … many exchanges and regions using a wide range of strategies. As a member of the team, you will work with other software engineers to design and develop the full stack of software needed to enable a global trading operation. You are expected to design and develop trading systems … Responsibilities - Work as part of the cryptoassets team to establish and maintain best-in-class software systems that enable 24-hour, global trading operations - Design and develop full-stack software systems including trading systems, exchange connectivity solutions, and monitoring systems - Use multiple languages, including Java, C++, and Python - Testing More ❯
Posted:

Java Developer - Front Office/OTC

london, south east england, united kingdom
Hybrid / WFH Options
Roc Search
Type: Permanent Location: London/Hybrid Salary: £150,000-£200,000 (DOE) - Upto £300,000 Total comp Skills: Java, C++, Python, Low Latency, Microservices, API's, Functional programming, OTC, Crypto Assets Roc Search have partnered with a well established trading firm with over 30 years of experience bringing technology … many exchanges and regions using a wide range of strategies. As a member of the team, you will work with other software engineers to design and develop the full stack of software needed to enable a global trading operation. You are expected to design and develop trading systems … Responsibilities - Work as part of the cryptoassets team to establish and maintain best-in-class software systems that enable 24-hour, global trading operations - Design and develop full-stack software systems including trading systems, exchange connectivity solutions, and monitoring systems - Use multiple languages, including Java, C++, and Python - Testing More ❯
Posted:

Software Engineer (Go) London

London, United Kingdom
Hybrid / WFH Options
Tbwa Chiat/Day Inc
There will also be the opportunity to get involved in the continued development of our suite of LLM and Data Science focused modules. Help design, build and extend Seldon's Core v2 MLOps platform, contributing to improved reliability, scalability and performance as well as next-generation features. Engage in … using Kafka. Experience with Kubernetes and the ecosystem of Cloud Native tools. Experience/involvement in architecting, implementing, and debugging complex systems, from initial design to completion. Understanding of distributed and low latency application architecture/systems and microservices. Strong experience with API design, including gRPC and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

MuleSoft Pre-Sales Solution Architect

London, United Kingdom
Hybrid / WFH Options
Odyssey IT Solutions Ltd
with the sales team to articulate the value of MuleSoft's platform and solutions to potential customers. Your deep understanding of the Anypoint Platform, API-led connectivity, Automation solutions and integration architecture will be critical to showcasing how our solutions can meet clients' strategic business objectives. Must have passion … tailored MuleSoft solutions. Lead technical discussions, demos, and presentations to articulate the value of MuleSoft's platform. Conduct discovery/workshops with customers. Solution Design: Architect scalable, reliable, and high-performing integration solutions that meet client requirements using MuleSoft Anypoint Platform. Ensure that proposed solutions align with customer business … objectives. Technical Expertise: Provide thought leadership and subject matter expertise on API-led architecture, MuleSoft Automation portfolio, microservices, and digital transformation strategies. Guide customers on best practices for integrating MuleSoft into their existing enterprise architecture. Should have proven track of Integration Patterns, Microservices patterns, Data & AI best practices. Proposal More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Staff Product Engineer

London, United Kingdom
Hybrid / WFH Options
Accurx Limited
needs. Influence Multiple Teams: Operating at a group level means you'll work across numerous squads, identifying systemic technical challenges and opportunities. You'll design initiatives that improve engineering practices, reduce friction, and accelerate our delivery of value. By seeing the bigger picture, you'll ensure that investments in … systematically. Mentor and Grow Our Talent: You'll model exceptional technical leadership and mentor senior and junior engineers alike. By coaching others on system design, debugging complex issues, and navigating trade-offs, you'll elevate the skill and confidence of those around you. You'll also partner with engineering … experience with these, or related languages such as C++ or Java ; if not you are ready to pick them up quickly! Strong understanding of API design, and cloud services. Familiarity with modern frontend tools like React and TypeScript (collaborative focus). Experience designing scalable, reliable architectures and defining More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Product Manager - Contextual Banking

London, England, United Kingdom
Hybrid / WFH Options
Deutsche Bank
Fintech Software as a Service (SaaS) startup venture redefining embedded finance and Banking as a Service (BaaS). We deliver intelligent, Application Programming Interface (API)-first software for treasury, payments, working capital, and financial data automation. Our products include multi-bank cash management, link-based payouts and collections, investment … integrated financial tools. We operate as a fast-moving FinTech with the security, trust, and reach of a global bank. You will lead the design and launch of digital financial platforms that unify APIs, automation, and banking into seamless client workflows. You will own strategic product areas and work … turning incomplete or ambiguous inputs into solid action plans Go above and beyond to make your product successful Define product specs, user flows, and API requirements for embedded financial workflows Collaborate with engineering, design, and data teams to ship high-impact features Partner with sales/marketing to More ❯
Posted:

Full Stack Engineer

London Area, United Kingdom
Hybrid / WFH Options
she does data
user-facing experience of our platform and play a key role in building beautiful, responsive, and accessible web applications. What you’ll be doing: Design and implement stunning, responsive, and accessible UI components using React and TypeScript. Collaborate across teams to define and execute the technical direction of the … reviews to ensure best practices. Troubleshoot, debug, and upgrade the software to enhance user experience. Help shape the product strategy by collaborating closely with design, product, and other engineers. Be an advocate for modern engineering practices and help mentor junior team members. What you can bring: Proven experience working … start-up environment. Strong front-end skills with React and TypeScript. Solid experience with backend development in Python/Django. A good understanding of API design, cloud infrastructure, and scalable architecture. A user-centric mindset with a passion for delivering seamless user experiences. Excellent communication and collaboration skills. More ❯
Posted:

Full Stack Engineer

london, south east england, united kingdom
Hybrid / WFH Options
she does data
user-facing experience of our platform and play a key role in building beautiful, responsive, and accessible web applications. What you’ll be doing: Design and implement stunning, responsive, and accessible UI components using React and TypeScript. Collaborate across teams to define and execute the technical direction of the … reviews to ensure best practices. Troubleshoot, debug, and upgrade the software to enhance user experience. Help shape the product strategy by collaborating closely with design, product, and other engineers. Be an advocate for modern engineering practices and help mentor junior team members. What you can bring: Proven experience working … start-up environment. Strong front-end skills with React and TypeScript. Solid experience with backend development in Python/Django. A good understanding of API design, cloud infrastructure, and scalable architecture. A user-centric mindset with a passion for delivering seamless user experiences. Excellent communication and collaboration skills. More ❯
Posted:

Solutions Architect Magento - Sustainable eCommerce

London
Hybrid / WFH Options
Client Server
Solutions Architect (Magento eCommerce) London/WFH to £70k Do you have strong a strong knowledge of Magento combined with architecture and design skills and a love of nature? You could be progressing your career in an impactful role at a successful and growing sustainable fashion brand. As a … business and the digital agency that they partner with; you'll collaborate with non-technical stakeholders within the wider business to understand requirements and design solutions to meet business demands. Initially you'll take ownership of a digital transformation to align all software architecture to enable growth and scalability. … meeting up with colleagues once a week in the London office. About you: You have a strong Magento development background, now with architecture and design skills You have experience with NetSuite or other eCommerce ERP system You have experience of developing scalable and secure architectures for eCommerce businesses You More ❯
Employment Type: Permanent
Salary: £60,000 - £70,000
Posted:

Magento Architect eCommerce

London
Hybrid / WFH Options
Client Server
Magento Architect (eCommerce) London/WFH to £70k Do you have strong a strong knowledge of Magento combined with architecture and design skills and a love of nature? You could be progressing your career in an impactful role at a successful and growing sustainable fashion brand. As a Magento … business and the digital agency that they partner with; you'll collaborate with non-technical stakeholders within the wider business to understand requirements and design solutions to meet business demands. Initially you'll take ownership of a digital transformation to align all software architecture to enable growth and scalability. … meeting up with colleagues once a week in the London office. About you: You have a strong Magento development background, now with architecture and design skills You have experience with NetSuite or other eCommerce ERP system You have experience of developing scalable and secure architectures for eCommerce businesses You More ❯
Employment Type: Permanent
Salary: £60,000 - £70,000
Posted:

Engineering Manager

London, United Kingdom
Hybrid / WFH Options
Tbwa Chiat/Day Inc
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 More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Fullstack Engineer - Automations

London, United Kingdom
Hybrid / WFH Options
Personio GmbH
efficiently. We also operate the Document Management platform, one of the most used features within Personio. What You'll Do: Develop High-Impact Solutions - Design and build scalable, efficient backend/frontend systems using Kotlin on the backend and React on the frontend. Full-Stack Contributions - The role is … with frontend and backend engineers, product managers, and other teams to align on priorities and deliver end-to-end solutions. Improve System Performance - Optimize API performance, database queries, and reduce frontend latency for high-traffic web solutions. Operational Excellence - Participate in on-call responsibilities and build alerts and monitoring … remain scrappy in order to maximize velocity. Personio is still a young and hungry startup, and you navigate this in a balanced manner. Strong design/architecture skills - You have a solid understanding of API design, architecture, and distributed systems. Excellent collaboration and communication skills - Clear, transparent More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Solutions Consultant

London, United Kingdom
Hybrid / WFH Options
Littlepay Limited
as part of a formal procurement process The ability to help technical stakeholders to integrate with APIs and SDKs, with an understanding of RESTful API design and integration patterns Entrepreneurial DNA - you get things done, are flexible to changes, eager to learn, resilient to failure, and persistent to … proven ability to analyse customer business and technical requirements and to successfully construct and communicate the optimal solution to all stakeholders Experience with SaaS, API driven technology solutions and third party integrations We love to look after our people. At Littlepay, you'll be part of an inclusive and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Back Office Solutions Architect - London office, United Kingdom

London, UK
Hybrid / WFH Options
McArthurGlen Designer Outlets
you\\\'ll bring...• You have experience or appreciation of Enterprise solutions like Workday (FO and HCM) or MRI.• You have a proven ability to design and develop innovative solutions, considering factors such as scalability, performance, and security.• You have experience in evaluating and selecting appropriate technologies and tools to … experience building technical architectures and designs, designing, integrating, and managing complex solutions spanning multiple domains, including security, networking and infrastructure• You have experience in API design and use including large scale, close-to-real-time services using integration tools like Azure Integration Services• You possess strong analytical skills More ❯
Posted:
API Design
London
10th Percentile
£58,125
25th Percentile
£67,500
Median
£80,000
75th Percentile
£101,563
90th Percentile
£120,000