Permanent API Design Jobs in London

1 to 25 of 126 Permanent API Design Jobs in London

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:

Senior Software Engineer

London, United Kingdom
Anaplan Inc
is welcome; join us and be your best self! We are seeking a Senior Software Engineer to join our team! Your Impact: Software Development: Design, implement, and maintain scalable, maintainable, and efficient Python-based applications, focusing on backend and full-stack development. Collaboration & Communication: Work closely with product managers … pipelines (e.g., Jenkins, GitLab CI). Testing and Debugging: Experience with testing tools like pytest , unit tests, and debugging skills to quickly resolve issues. API Design: Strong knowledge of RESTful API design and implementation; knowledge of GraphQL is a plus. Security Best Practices: Awareness of security More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

AR Engineer (Typescript API)

London, United Kingdom
Snap Inc
AR Engineer (Typescript API) page is loaded AR Engineer (Typescript API) Apply locations London, United Kingdom time type Full time posted on Posted 7 Days Ago job requisition id R Snap Inc is a technology company. We believe the camera presents the greatest opportunity to improve the way … s possible in AR. You will: Create developer-facing APIs and tools that enable teams to build envelope-pushing experiences on Spectacles Assist with API design, development, and documentation Build automated release processes and infrastructure Knowledge, Skills & Abilities: Strong knowledge in Typescript Strong understanding of API design More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Solutions Architect [UAE Based] (London Area)

London, UK
AI71
advancements, initially targeting the medical, education, and legal sectors. We specialize in turning innovation into impact. We are seeking an experienced Solution Architect to design and own the solution architecture for our scalable SaaS and custom products . The ideal candidate will align with the product roadmap, purpose, and … strong focus on Microservices Architecture , ensuring that our solutions are scalable, configurable, and cloud-agnostic, with seamless integrations across various systems. Key Responsibilities: Architecture & Design: Microservices Focus : Architect, design, and implement a robust microservices-based solution, enabling agility, scalability, and independent service deployments. Define and own the solution … architecture for the product, ensuring scalability, configurability, and cloud-agnostic capabilities. Develop HLD (High-Level Design) and LLD (Low-Level Design) documents for the product. Create and maintain the deployment architecture , ensuring efficient and resilient deployment strategies. Design the integration architecture , including APIs, microservices, and third-party More ❯
Posted:

Solutions Architect [UAE Based]

London Area, United Kingdom
AI71
advancements, initially targeting the medical, education, and legal sectors. We specialize in turning innovation into impact. We are seeking an experienced Solution Architect to design and own the solution architecture for our scalable SaaS and custom products . The ideal candidate will align with the product roadmap, purpose, and … strong focus on Microservices Architecture , ensuring that our solutions are scalable, configurable, and cloud-agnostic, with seamless integrations across various systems. Key Responsibilities: Architecture & Design: Microservices Focus : Architect, design, and implement a robust microservices-based solution, enabling agility, scalability, and independent service deployments. Define and own the solution … architecture for the product, ensuring scalability, configurability, and cloud-agnostic capabilities. Develop HLD (High-Level Design) and LLD (Low-Level Design) documents for the product. Create and maintain the deployment architecture , ensuring efficient and resilient deployment strategies. Design the integration architecture , including APIs, microservices, and third-party More ❯
Posted:

Solutions Architect [UAE Based]

london, south east england, United Kingdom
AI71
advancements, initially targeting the medical, education, and legal sectors. We specialize in turning innovation into impact. We are seeking an experienced Solution Architect to design and own the solution architecture for our scalable SaaS and custom products . The ideal candidate will align with the product roadmap, purpose, and … strong focus on Microservices Architecture , ensuring that our solutions are scalable, configurable, and cloud-agnostic, with seamless integrations across various systems. Key Responsibilities: Architecture & Design: Microservices Focus : Architect, design, and implement a robust microservices-based solution, enabling agility, scalability, and independent service deployments. Define and own the solution … architecture for the product, ensuring scalability, configurability, and cloud-agnostic capabilities. Develop HLD (High-Level Design) and LLD (Low-Level Design) documents for the product. Create and maintain the deployment architecture , ensuring efficient and resilient deployment strategies. Design the integration architecture , including APIs, microservices, and third-party More ❯
Posted:

Principal Architect APIs & Integration

London, United Kingdom
Bupa
for our customers. Key Responsibilities Maintain the overall Internal and External APIs Technology Strategy and external developer experience. Specify standards, patterns, platform technology (e.g., API Gateways), API governance, and target state for effective at-scale market-unit-wide API management capabilities. Drive technical alignment across the API design community, including Enterprise, Solution Architecture, and Engineering, which spans multiple Business Units (BUs). Educate senior leadership (technology and business) to raise understanding of API-led technology architecture. Analyze industry trends to leverage technology and methodology advances. Set KPIs and perform progress tracking and reporting against … target state and API controls. Participate in CTAO Leadership forums, conducting QA and Review of architecture deliverables and strategic API contracts. Serve as the single point of contact and escalation for architecture development across business units and with senior business and technology leadership. Communicate architecture direction and its More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Engineering Manager

London, United Kingdom
dunnhumby
Your responsibilities will include: Defining & Leading the Engineering Vision - Drive the technical strategy, platform evolution, and modernization of our software ecosystem. Influence cloud adoption, API-first development, automation, and DevOps maturity. Owning Sub-Domain Level OKRs - Work closely with Product, Design, UX, and Commercial teams to co-own … inclusion, and career growth. Technical Excellence & Architecture Alignment - Collaborate with Architects and Principal Engineers to establish best practices in distributed systems, microservices, cloud-native design, API strategy, and front-end development. Driving Automation & DevOps Best Practices - Champion CI/CD pipelines, cloud transformation, and platform engineering principles, ensuring … as an Engineering Manager(senior), Lead Engineer, or Tech manager, managing complex engineering projects. Strong expertise in distributed systems, cloud architecture (GCP & Azure), microservices, API design, and scalable platform engineering. In-depth knowledge and hands-on experience with technologies such as .NET, Python, Spark, Git (GitLab), Docker, Kubernetes More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer (Full-Stack/Product)

London, United Kingdom
Mytos & Aspen
Leverage tooling and automated testing to deliver quality software at speed. Contribute to the core architecture of our systems, improving database performance, data integrity, API design, and distributed system reliability. Your experience with software resilience will help us build systems that gracefully handle unexpected scenarios. Must-have Strong … with full-stack web development using TypeScript or other typed languages. Experience with modern frontend frameworks (React preferred). Experience with backend development and API design ( Node.js preferred). Understanding of distributed systems concepts - if you've built reliable microservices or dealt with API synchronization, you already … it. Ability to work effectively in cross-functional teams. Strong communication skills and customer empathy. At least one of these areas Product thinking and design mentality : Experience working closely with users, translating complex requirements into simple interfaces, and making scope decisions based on customer value. Deep distributed systems expertise More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Director -Technical Architect Advisory Services

London, United Kingdom
Moody's Investors Service
You will collaborate with cross-functional teams to ensure the delivery of high-quality systems while maintaining technical excellence and innovation. Key Responsibilities: Architectural Design & Development: Define, design, and implement scalable and secure technical architectures for enterprise-level applications and systems. Oversee the integration of complex software systems … and challenges during project lifecycles. Develop proof-of-concepts (POCs) and prototypes for proposed solutions. Key Skills & Competencies: Strong expertise in software engineering principles , design patterns, and best practices. Proficiency in multiple programming languages (e.g., Java, Python, C#, or others) and frameworks. Extensive experience with cloud platforms (e.g., AWS … Azure, Google Cloud) and containerization technologies (e.g., Docker, Kubernetes). Hands-on experience in microservices architecture , API design, and distributed systems. Deep understanding of DevOps practices, CI/CD pipelines, and infrastructure as code (IaC). Familiarity with data architecture, databases (SQL/NoSQL), and big data technologies. More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Azure Integration Engineer (London Area)

London, UK
The Change Partners - Global talent specialists for a connected world
The Change Partners are working with a tier-1 Beverage brand who are hiring for a Azure (API) Integration Engineer. The Azure Specialist will be responsible in desiging integration strategies for a variety of systems internally, creating efficiencies across data flows and ensuring seamless API implementation. Please note … OAuth2 and Cloud) integration development. Partner with technology and business teams to define requirements for integration and align to business objectives. Lead on integration design solutions and API patterns. Be the 'go to' specialist for platform integration, working with Product owner. Manage end to end lifecycle development of … the product from a design, build, deployment and operational management of the platform. Ensure platform/product is developed efficiently and reliably in line with company policies. Become hands on with API integration patterns, REST, SOAP, cloud and wider architectures, components, visualisation of networks and autonomy. Work with More ❯
Posted:

Azure Integration Engineer

London Area, United Kingdom
The Change Partners - Global talent specialists for a connected world
The Change Partners are working with a tier-1 Beverage brand who are hiring for a Azure (API) Integration Engineer. The Azure Specialist will be responsible in desiging integration strategies for a variety of systems internally, creating efficiencies across data flows and ensuring seamless API implementation. Please note … OAuth2 and Cloud) integration development. Partner with technology and business teams to define requirements for integration and align to business objectives. Lead on integration design solutions and API patterns. Be the 'go to' specialist for platform integration, working with Product owner. Manage end to end lifecycle development of … the product from a design, build, deployment and operational management of the platform. Ensure platform/product is developed efficiently and reliably in line with company policies. Become hands on with API integration patterns, REST, SOAP, cloud and wider architectures, components, visualisation of networks and autonomy. Work with More ❯
Posted:

Azure Integration Engineer

london, south east england, United Kingdom
The Change Partners - Global talent specialists for a connected world
The Change Partners are working with a tier-1 Beverage brand who are hiring for a Azure (API) Integration Engineer. The Azure Specialist will be responsible in desiging integration strategies for a variety of systems internally, creating efficiencies across data flows and ensuring seamless API implementation. Please note … OAuth2 and Cloud) integration development. Partner with technology and business teams to define requirements for integration and align to business objectives. Lead on integration design solutions and API patterns. Be the 'go to' specialist for platform integration, working with Product owner. Manage end to end lifecycle development of … the product from a design, build, deployment and operational management of the platform. Ensure platform/product is developed efficiently and reliably in line with company policies. Become hands on with API integration patterns, REST, SOAP, cloud and wider architectures, components, visualisation of networks and autonomy. Work with More ❯
Posted:

Principal Engineer (Fullstack)

London, United Kingdom
AKQA Media
AKQA believes in the imaginative application of art and science to create beautiful ideas, products and services. With an entrepreneurial and collaborative approach, we design adaptive digital services and applications that capture the imagination, delivering immersive experiences for our clients. Located in London (Farringdon), United Kingdom, you will be … digital applications, serving users on the modern technology landscape, whatever that may be. In particular development of Node.js and Java applications and systems integrations, API design and development, DevOps activities, building and implementing servers, databases, serverless architectures as well as implementation of security mechanisms and monitoring; on AWS … Azure or GCP cloud hosting. ROLE REQUIREMENTS Hands on design and development of large scale projects. Proactive in engineering communities and thought leadership both internally and externally. Line management and coaching of senior and junior engineers, as well as near and off-shore project engineers, whilst maintaining high levels More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Solutions Architect - Azure

Kingston Upon Thames, England, United Kingdom
Invecta
seeking a Solutions Architect to play a central role in shaping scalable, secure, and future-proof solutions. What You’ll Be Doing: Leading the design and delivery of Azure-based architectures (IaaS, PaaS, serverless, data, AI/ML). Working cross-functionally to understand business capabilities and define target … and technical documentation (HLD/LLD). Supporting architectural governance, procurement decisions, and executive reporting. Mentoring engineering teams on best practices in Azure, DevOps, API design, and security. What You’ll Bring: Strong architectural understanding across infrastructure, software, data, and security. Proven experience in Azure migration and modernisation … of legacy platforms. Deep knowledge of Microsoft Azure (M365, Entra, APIM, Azure DevOps). Experience in microservices, AKS, API-first design, and middleware tools like Logic Apps and Service Bus. A track record of delivering system integration programmes at scale. Clear communication skills with the ability to simplify More ❯
Posted:

Solutions Architect - Azure (Kingston Upon Thames)

Kingston upon Thames, Greater London, UK
Invecta
seeking a Solutions Architect to play a central role in shaping scalable, secure, and future-proof solutions. What You’ll Be Doing: Leading the design and delivery of Azure-based architectures (IaaS, PaaS, serverless, data, AI/ML). Working cross-functionally to understand business capabilities and define target … and technical documentation (HLD/LLD). Supporting architectural governance, procurement decisions, and executive reporting. Mentoring engineering teams on best practices in Azure, DevOps, API design, and security. What You’ll Bring: Strong architectural understanding across infrastructure, software, data, and security. Proven experience in Azure migration and modernisation … of legacy platforms. Deep knowledge of Microsoft Azure (M365, Entra, APIM, Azure DevOps). Experience in microservices, AKS, API-first design, and middleware tools like Logic Apps and Service Bus. A track record of delivering system integration programmes at scale. Clear communication skills with the ability to simplify More ❯
Posted:

Solutions Architect - Azure

london (kingston upon thames), south east england, United Kingdom
Invecta
seeking a Solutions Architect to play a central role in shaping scalable, secure, and future-proof solutions. What You’ll Be Doing: Leading the design and delivery of Azure-based architectures (IaaS, PaaS, serverless, data, AI/ML). Working cross-functionally to understand business capabilities and define target … and technical documentation (HLD/LLD). Supporting architectural governance, procurement decisions, and executive reporting. Mentoring engineering teams on best practices in Azure, DevOps, API design, and security. What You’ll Bring: Strong architectural understanding across infrastructure, software, data, and security. Proven experience in Azure migration and modernisation … of legacy platforms. Deep knowledge of Microsoft Azure (M365, Entra, APIM, Azure DevOps). Experience in microservices, AKS, API-first design, and middleware tools like Logic Apps and Service Bus. A track record of delivering system integration programmes at scale. Clear communication skills with the ability to simplify More ❯
Posted:

Back End Developer (London Area)

London, UK
Haystack
company helping clients engage in marketing strategies with audiences in virtual worlds. Your Focus: As a Senior Backend Engineer focused on Data Pipelines and API Optimisation, you’ll be central to our platform's performance and scalability. You’ll design, build, and iterate on the systems that handle … delivery - ensuring they are scalable, reliable, and performant. You should have a strong background in backend engineering, particularly around distributed systems, database optimisation, and API development. You’ll work with technologies like JavaScript and TypeScript to build robust services that meet high standards for performance and reliability. This role … is ideal for someone experienced, self-driven, and excited about leading backend projects involving large-scale data handling and API improvements. Your technical leadership will help evolve our infrastructure and mentor other engineers as we scale. Skills, Knowledge, and Expertise Experience 5+ years in Backend Software Engineering, with a More ❯
Posted:

Back End Developer

London Area, United Kingdom
Haystack
company helping clients engage in marketing strategies with audiences in virtual worlds. Your Focus: As a Senior Backend Engineer focused on Data Pipelines and API Optimisation, you’ll be central to our platform's performance and scalability. You’ll design, build, and iterate on the systems that handle … delivery - ensuring they are scalable, reliable, and performant. You should have a strong background in backend engineering, particularly around distributed systems, database optimisation, and API development. You’ll work with technologies like JavaScript and TypeScript to build robust services that meet high standards for performance and reliability. This role … is ideal for someone experienced, self-driven, and excited about leading backend projects involving large-scale data handling and API improvements. Your technical leadership will help evolve our infrastructure and mentor other engineers as we scale. Skills, Knowledge, and Expertise Experience 5+ years in Backend Software Engineering, with a More ❯
Posted:

Back End Developer

london, south east england, United Kingdom
Haystack
company helping clients engage in marketing strategies with audiences in virtual worlds. Your Focus: As a Senior Backend Engineer focused on Data Pipelines and API Optimisation, you’ll be central to our platform's performance and scalability. You’ll design, build, and iterate on the systems that handle … delivery - ensuring they are scalable, reliable, and performant. You should have a strong background in backend engineering, particularly around distributed systems, database optimisation, and API development. You’ll work with technologies like JavaScript and TypeScript to build robust services that meet high standards for performance and reliability. This role … is ideal for someone experienced, self-driven, and excited about leading backend projects involving large-scale data handling and API improvements. Your technical leadership will help evolve our infrastructure and mentor other engineers as we scale. Skills, Knowledge, and Expertise Experience 5+ years in Backend Software Engineering, with a More ❯
Posted:

Technical Analyst - Energy Transition

london, south east england, United Kingdom
Climate17 | B Corp™
commercial consulting. Key Responsibilities Contribute to the development and evolution of their analytical capability, working alongside a highly skilled team of energy market experts. Design, build and maintain robust database infrastructure to optimise internal data workflows and enable scalable access to data to consultants and to our in-house … including cloud-based solutions, to enable efficient and scalable stochastic modelling of power systems and energy assets across European and global markets. Lead the design and improvement of UI/UX components of our internal modelling tools, ensuring ease of use, accessibility, and scalability across the company. Collaborate closely … Lambda, S3), Docker, CI/CD, serverless architecture Frontend development: e.g. JavaScript/TypeScript, React, Dash, or similar frameworks Backend APIs: FastAPI, Flask, RESTful API design UI/UX design for data tools (e.g., streamlining internal workflows and dashboards) Experience with energy systems modelling/optimisation, quantitative More ❯
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:

Software Engineer

London, United Kingdom
Upscope
ready to grow with us Location: Soho, London (onsite 4 days a week) Salary: Approx. £50.000 annually, depending on experience Main responsibilities Development and Design: Write clean, efficient, and maintainable code using TypeScript, JavaScript, Node.js, and React. Design and implement robust applications and services to meet predefined requirements. … and practices, such as Git, CI/CD pipelines, automated testing frameworks (e.g., Jest, Mocha), and containerisation technologies (e.g., Docker). Knowledge of RESTful API design and development, and familiarity with web services architecture. Ability to write efficient, secure, well-documented, and clean JavaScript code. Familiarity with database More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

API / Web Application Security Specialist | Remote Contract

Central London, UK
Hybrid / WFH Options
Korn Ferry
Application Security Specialist Our client is looking to hire mid-level API & Application Security Specialist to join them on a 6-month initial contract, to work remotely with some occasional trips to the London site. This role will be operating INSIDE IR35 Key Skills Required: Deep knowledge of OWASP … API Top 10 Able to review Swagger/Open API specs for vulnerabilities Advise on secure API design patterns Familiar with fallback controls such as WAF's, API gateways Experience using SIEM/logging tools to track API threats Familiarity with NIST, OWASP SAMM … or internal security frameworks Experience producing risk dashboards/reports for API's Able to translate technical risks into business language, collaborating with key stakeholders If interested in this role, please apply today More ❯
Posted:

API / Web Application Security Specialist | Remote Contract

West London, UK
Hybrid / WFH Options
Korn Ferry
Application Security Specialist Our client is looking to hire mid-level API & Application Security Specialist to join them on a 6-month initial contract, to work remotely with some occasional trips to the London site. This role will be operating INSIDE IR35 Key Skills Required: Deep knowledge of OWASP … API Top 10 Able to review Swagger/Open API specs for vulnerabilities Advise on secure API design patterns Familiar with fallback controls such as WAF's, API gateways Experience using SIEM/logging tools to track API threats Familiarity with NIST, OWASP SAMM … or internal security frameworks Experience producing risk dashboards/reports for API's Able to translate technical risks into business language, collaborating with key stakeholders If interested in this role, please apply today More ❯
Posted:
API Design
London
10th Percentile
£57,750
25th Percentile
£67,500
Median
£80,000
75th Percentile
£100,625
90th Percentile
£120,000