1 to 25 of 174 Remote API Design Jobs in London

Senior Backend Software Engineer (C# .NET Core) - Revolutionise Healthcare with REST API Design! Are you ready to make a monumental impact in the healthcare industry? We're looking for a Senior/Lead Backend Software Engineer with a strong focus on REST API design to join … Reporting To: Vice President of Software Development Your Mission: Collaborate with a cross-functional team of Frontend Developers, QA Engineers, and DevOps Engineers to design secure, scalable REST API endpoints that will revolutionise clinical research applications. This critical role requires extensive experience in REST API design. You … will also develop relational database schemas and work within a containerized microservice platform. Key Responsibilities: REST API Design & Implementation: Develop and maintain REST APIs using C# and .NET Core SDK. Database Mastery: Design relational database schemas, utilize Entity Framework (ORM), manage database migrations, and work with PostgreSQL. More ❯

Social network you want to login/join with: Lead Software Engineer (Scalability and API Design) - 95% Remote - £85k - ID41216, london col-narrow-left Client: Humand Talent Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 10.06.2025 Expiry … Date: 25.07.2025 col-wide Job Description: Lead Software Engineer – UK Remote | £80,000 to £85,000 | Hands-on Leadership in Scalable Systems w/API Design Are you a technical leader ready to guide a high-performing engineering team? Do you enjoy mentoring others while staying close to … architecture and system design? Interested in shaping tools that support real-world infrastructure at scale? We’re recruiting for a Lead Software Engineer on behalf of a fast-growing technology company whose platform is relied upon across thousands of physical locations in the UK and internationally. Known for their More ❯

Lead Software Engineer – UK Remote | £80,000 to £85,000 | Hands-on Leadership in Scalable Systems w/API Design Are you a technical leader ready to guide a high-performing engineering team? Do you enjoy mentoring others while staying close to architecture and system design? Interested … is Great Lead a talented team delivering software that supports the installation, configuration and maintenance of distributed systems at scale Balance hands-on technical design with mentoring and team development Collaborate across product, cloud, QA and systems engineering to deliver robust solutions Contribute to technical strategy, system architecture and … Node.js development, or similar backend technologies Designing and deploying services in a modern cloud environment Working with databases (SQL or NoSQL) and scalable system design Agile delivery and team collaboration Building for maintainability, performance and clear documentation Experience or interest in the following would also be valuable: Managing or More ❯

Lead Software Engineer – UK Remote | £80,000 to £85,000 | Hands-on Leadership in Scalable Systems w/API Design Are you a technical leader ready to guide a high-performing engineering team? Do you enjoy mentoring others while staying close to architecture and system design? Interested … is Great Lead a talented team delivering software that supports the installation, configuration and maintenance of distributed systems at scale Balance hands-on technical design with mentoring and team development Collaborate across product, cloud, QA and systems engineering to deliver robust solutions Contribute to technical strategy, system architecture and … Node.js development, or similar backend technologies Designing and deploying services in a modern cloud environment Working with databases (SQL or NoSQL) and scalable system design Agile delivery and team collaboration Building for maintainability, performance and clear documentation Experience or interest in the following would also be valuable: Managing or More ❯

Lead Software Engineer – UK Remote | £80,000 to £85,000 | Hands-on Leadership in Scalable Systems w/API Design Are you a technical leader ready to guide a high-performing engineering team? Do you enjoy mentoring others while staying close to architecture and system design? Interested … is Great Lead a talented team delivering software that supports the installation, configuration and maintenance of distributed systems at scale Balance hands-on technical design with mentoring and team development Collaborate across product, cloud, QA and systems engineering to deliver robust solutions Contribute to technical strategy, system architecture and … Node.js development, or similar backend technologies Designing and deploying services in a modern cloud environment Working with databases (SQL or NoSQL) and scalable system design Agile delivery and team collaboration Building for maintainability, performance and clear documentation Experience or interest in the following would also be valuable: Managing or More ❯

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 ❯

deliver impactful results for industries such as telecommunications, international government bodies, media, and technology. At Aqovia, we pride ourselves on our ability to architect, design, and develop cutting-edge solutions that drive transformative projects. Our world class team, with decades of experience at leading blue-chip companies, brings unmatched … our own products and/or client projects. As a Technical Business Analyst you will be working on our consulting projects, primarily designing RESTful API services. Here's what you'll do: Capture and curate business requirements and system documentation in JIRA/Confluence as user stories, API design, API enhancements Write estimate-able user stories, in JIRA, for developers including acceptance criteria Design RESTful web APIs for new and existing products in an API first context, in accordance with strategic guidance provided by the technical architect. Collaborate with engineering team members and More ❯

are looking for a talented software .NET developer with extensive experience in .NET/C# to join our team. In this role, you’ll design, develop, and maintain our Definely products—from rich WPF-based desktop applications to resilient backend services. This is an opportunity to lead by example … mentor junior team members, and drive the technical excellence that defines our suite of products. Key Responsibilities Application Development Architect, design, and implement rich desktop applications using WPF. Leverage modern UI design principles and patterns (such as MVVM) to ensure clean, maintainable, and scalable code. Build and maintain … robust backend services, APIs, and libraries using .NET/C#. Technical Leadership & Collaboration Participate in design and code reviews to ensure high-quality, maintainable solutions. Collaborate closely with product managers, designers, and other engineers to align on requirements and deliver innovative features. Provide technical mentorship and guidance to less More ❯

supply chain, and operations teams to shape new solutions that boost productivity, reduce waste, and support the ultimate customer experience. Key Responsibilities Lead the design and delivery of operations-focused products, ensuring scalable solutions that improve fulfilment, logistics, inventory management and resource planning. Translate business needs and data insights … drive continuous improvement. What We're Looking For You have a thorough understanding of, and ideally practical experience in, a variety of disciplines: service design, API design, user research, user experience design, data, development and business principles. You understand how each contributes to the creation of More ❯

more open-source projects build performant and accessible interfaces that respond well to diverse layouts. We use REST APIs for communication, and we consider API design an important part of the process. We care about accessibility in our products and take time to work with designers. Flutter is … roles, you will have the opportunity to make significant contributions through high-quality, front-end and back-end code while exhibiting technical leadership, exceptional design, and intuitive user experience. Additionally, we encourage colleagues to engage with the broader open-source community. We're looking for individuals who can help … all aspects of web development Attention to detail in regard to user-centric UI development Experience with systems programming or scalable web services REST API design, development and governance Performance engineering and security experience What we offer you We consider geographical location, experience, and performance in shaping compensation More ❯

external electronic health record (EHR) system data. Monitor and maintain MySQL databases to guarantee optimal performance and reliability. Collaborate with the backend team to design and implement APIs supporting Circadia's suite of products. Architecture: Design, deploy, and manage AWS infrastructure solutions to support various applications and services. … Design scalable systems for storage and processing of large amounts of medical data. Manage databases (e.g., MySQL, MongoDB), optimizing for performance, scalability, and cost-efficiency. Manage compute clusters (e.g., ECS), serving various internal and customer-facing products and services. Utilize Terraform to efficiently manage cloud infrastructure. Ensure high availability … C++ - Strong understanding of multithreading, asynchronous programming, network protocols. Advanced knowledge of Python and related frameworks (FastAPI, NumPy, Pandas, Pydantic) including multithreading and parallel design principles. Understanding of AWS, including knowledge of Cognito, Pinpoint, IoT, MSK and other services. Deep understanding of user-centered design principles, design More ❯

join their growing team in the healthcare sector. In this role, you will take a high-level strategic approach to architecture, ensuring the overall design of complex systems is optimized for scalability, security, and performance. You will collaborate closely with stakeholders, engineers, and product owners, acting as a technical … and lead the architecture of complex, large-scale systems using modern Java technologies, ensuring alignment with the businesss strategic goals. Provide high-level architecture design decisions for microservices, APIs, and cloud solutions, ensuring adherence to best practices and industry standards. This role will be largely hands-off, however liaising … engineers, fostering a culture of learning and continuous improvement. Guide and collaborate with product owners to ensure that technical decisions align with business objectives. Design and Strategy: Design scalable, efficient, and secure microservices-based architectures that can scale with business needs. Develop strategies for integrating with existing systems More ❯

As Senior Java Engineer (Fintech project) Job Description WHAT YOU’LL DO Design and implement core backend services for high-performance, complex distributed systems. Utilize modern development practices such as TDD/BDD. Own service design and APIs for internal and external integrations. Write clear, modern, well-tested … technical decisions, focusing on scalability and throughput optimization. Document work clearly for team use. WHAT WE EXPECT FROM YOU Deep understanding of backend architecture, API design, and scaling. Experience with gRPC or API-first design is a plus. Proficiency in Java and distributed systems, including handling More ❯

funding from renowned investors within the space, enabling us to expand our team and deliver on our ambitious vision. What we value At Gendo, design is at the core of our mission- both in the design of our products and also through its power to elevate creative expression … and of course within the Gendo team itself. We take an exploratory approach to work, continuously innovating and seeking new ways to enhance the design process for our users. Our ambition is big, we're building a passionate, dedicated, world class team to transform the future of architecture and … design, making cutting-edge tools accessible and enabling users to bring their boldest ideas to life with speed and precision. Role Overview As our Senior Frontend Engineer, you will take ownership of the frontend development for a highly interactive, sophisticated web application built in React (Next.js). Unlike many More ❯

This is an opportunity to shape the direction of our platform and foster a culture of collaboration and innovation. Requirements Key Responsibilities: Ruby Development: Design, build, and maintain robust, scalable, and high-performance Ruby applications. Write clean, maintainable, and efficient code following best practices and coding standards. Collaborate with … frontend developers to integrate backend services with the frontend. DevOps & Automation: Collaborate with the DevOps team to design and implement CI/CD pipelines and deployment automation. Ensure the smooth deployment of Ruby applications by utilizing infrastructure-as-code tools (e.g., Terraform, Ansible). Maintain and improve our cloud … based infrastructure (AWS, GCP, or Azure) to ensure scalability and reliability. Database Architecture & Optimization: Design and optimize databases (PostgreSQL, MySQL, or MongoDB) for high performance and scalability. Write efficient queries, manage indexing, and improve query performance. Implement data integrity and backup strategies to ensure data security. Leadership & Collaboration: Mentor More ❯

AI Agents Solution Architect - Future Talent (Q2/Q3 opportunities) for leading GSI in the software engineering market AI Solution Architect to design and implement AI-driven agent solutions for the online commerce space. Deep understanding of AI/ML models, cloud computing, and scalable system architecture. This role … requires expertise in architecting intelligent agents, optimizing cloud-based deployments, and integrating AI services into enterprise applications. Key Responsibilities: Architect and design AI-powered agent solutions that integrate with enterprise systems and cloud platforms. Develop and optimize RESTful and GraphQL APIs to facilitate AI-driven interactions. Utilize AWS services … Lambda, S3, API Gateway, SageMaker, DynamoDB, ECS, etc.) to deploy scalable AI solutions. Implement Full Stack JavaScript (Node.js, React.js, Express, TypeScript, Next.js, etc.) applications to support AI-driven interfaces. Work closely with data scientists and ML engineers to integrate machine learning models into cloud-native applications. Ensure security, scalability More ❯

and implementation, ensuring our platform is scalable, secure, and aligned with the rapidly evolving AI landscape. Key Responsibilities Provide visionary architectural leadership for the design, development, and delivery of a new generation AI-driven SaaS platform. Lead, mentor, and manage a team of Senior Full-Stack Developers and engineers … development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. Strong … or platforms into software solutions. Domain experience in Recruitment Technology, HRTech, or closely related fields is a must. Proficient in software architecture, microservices, RESTful API design, and cloud-native development (AWS, Azure, or GCP preferred). Experience with CI/CD pipelines, automated testing, and DevOps practices. Solid More ❯

and implementation, ensuring our platform is scalable, secure, and aligned with the rapidly evolving AI landscape. Key Responsibilities Provide visionary architectural leadership for the design, development, and delivery of a new generation AI-driven SaaS platform. Lead, mentor, and manage a team of Senior Full-Stack Developers and engineers … development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. Strong … or platforms into software solutions. Domain experience in Recruitment Technology, HRTech, or closely related fields is a must. Proficient in software architecture, microservices, RESTful API design, and cloud-native development (AWS, Azure, or GCP preferred). Experience with CI/CD pipelines, automated testing, and DevOps practices. Solid More ❯

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 ❯

and frontend development while ensuring performance, security, and scalability. Key Responsibilities: Develop and maintain full-stack web applications using PHP and modern frontend technologies. Design and implement scalable solutions in multi-server environments. Work with AWS cloud services to build robust, distributed systems. Optimize database performance and design … PHP development experience. Expert-level knowledge of the Laravel framework. Strong understanding of the full HTTP workflow in multi-server environments. Experience with RESTful API design and implementation. Proficiency in both MySQL and PostgreSQL databases. System Administration & Infrastructure Working knowledge of Linux systems (command line, file permissions, process … orchestration tools. Frontend Development Proficiency in modern JavaScript (ES6+). Experience with frontend frameworks (React, Vue.js, or similar). Strong HTML5, CSS3, and responsive design skills. Understanding of build tools and asset compilation. General Requirements Strong problem-solving and analytical skills. Experience with version control systems (Git). Knowledge More ❯

and implementation, ensuring our platform is scalable, secure, and aligned with the rapidly evolving AI landscape. Key Responsibilities Provide visionary architectural leadership for the design, development, and delivery of a new generation AI-driven SaaS platform. Lead, mentor, and manage a team of Senior Full-Stack Developers and engineers … with at least 3 years in a senior or technical lead role. Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. Strong … or platforms into software solutions. Domain experience in Recruitment Technology, HRTech, or closely related fields is a must. Proficient in software architecture, microservices, RESTful API design, and cloud-native development (AWS, Azure, or GCP preferred). Experience with CI/CD pipelines, automated testing, and DevOps practices. Solid More ❯

APIs as well as internal service APIs. This is a role for engineers that are familiar with standard backend architecture, and capable in database design and interaction. Our API platform is under constant load and scrutiny, so experience and commitment to easily understood and test code is also … bugs. Our tech stack includes services built using Go, Redis, Postgres, and Cloudflare products (e.g. Workers). We are looking for proficiency in RESTful API design, relational databases (SQL), and modern containerized deployment practices. This role may require flexibility to be on-call outside of standard working hours More ❯

big and taking risks. In this project you will be working on a project utilizing Python, Django & SQL. Responsibilities: Understand/apply reusable code design, leverage application architecture/framework capabilities and functionality, and design/develop solutions that are highly reliable, scalable, and perform to meet business … Employ Agile engineering practices, Pair Programming, Continuous Integration, Test Driven Development, etc. Identify and implement improvements to products. Contribute to the technical code and design documentation. Requirements: Strong proficiency in Python, with hands-on experience in Django. Proficient with SQL and ideally a strong background in Relational Databases (Oracle … of Web UI frameworks such as REACT or Angular is advantageous. Experience in Cloud and Container based application development is advantageous. Expertise in software design using SOLID or GRASP is advantageous. Knowledge of data modelling/schema design is advantageous. Exposure to Microservice architecture, REST API design More ❯

Software Development Coach - Flexible (Domain-Driven Design, TDD + Others) Software Development Coach - Flexible (Domain-Driven Design, TDD + Others) 3 weeks ago Be among the first 25 applicants About Skiller Whale Skiller Whale changes what tech teams are capable of through live sessions led by subject-matter … you enjoy building the skills and understanding of others, and you have expertise in ideally two or more of the following areas: Domain-Driven Design Expertise in common languages/frameworks/tools (e.g. Go, React, Kotlin, PostgreSQL, Docker etc) Test-Driven Development REST API Design Leadership … Kingdom 16 hours ago Performance-Based Business Coach - Work from Anywhere, Unlimited Growth London, England, United Kingdom 1 month ago Lifestyle & Business Empowerment Coach-Design Your Own Life London, England, United Kingdom 2 months ago London, England, United Kingdom 1 year ago London, England, United Kingdom 1 year ago More ❯

a range of projects with other highly motivated software developers include Li-LAC, SSC and Dalbeattie. They will be expected to contribute to technical design sessions, development, maintenance, testing and a degree of customer support as and when necessary. They should have the ability to: Demonstrate knowledge of the … technical requirements listed below. Possess a strong motivation to combine the art of design with the art of programming. Show a flair for designing and implementing visual elements of application design. Can work independently and multi-task effectively. Be flexible and willing to accept a change in priorities as … however candidates would be expected to work on various Android projects in both Kotlin and Java. The position will include being responsible for: The design and development of user-facing features. Design and development of server-side code. Building reusable code and libraries for future use. Ensuring the More ❯