Permanent 'API Design' Job Vacancies

326 to 350 of 466 Permanent API Design Jobs

Solutions Architect

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Formula Recruitment
As Solutions Architect, you’ll act as a bridge between engineering, business, and clients, blending deep technical expertise with a sharp understanding of customer needs. Expect to lead solution design, drive proof-of-concepts, and collaborate directly with senior stakeholders on high-impact projects. Key skills as a Solutions Architect: Proven background in software engineering with a strong grasp … of API design, cloud architecture, and scalable system design. Hands-on coding experience with modern technologies including Typescript (Node.js/React), AWS, Kubernetes, GraphQL, Kafka. Track record of working directly with clients on technical solutions, RFPs, and complex integrations. Ability to build prototypes and proof-of-concepts that validate ideas and showcase value. Expertise in CRMs, e-commerce More ❯
Posted:

Senior Backend Engineer (Python / FastAPI / Django)

London Area, United Kingdom
QOVES
us scale new features across a rapidly growing user base. Expect a fast-paced, high-autonomy role where your work directly impacts the future of the product. Key Responsibilities Design and implement new backend endpoints and services using Python and FastAPI building on the existing codebase Build and maintain scalable REST APIs, integrating PostgreSQL for robust data management Lead … platforms) for authentication, real-time updates, and storage Drive performance, security, and scalability best practices as we scale rapidly in the next 6–12 months Collaborate closely with Product, Design, and Frontend teams to deliver seamless and intuitive user experiences Own key architectural decisions while mentoring engineers and elevating backend engineering standards Build data-driven services and pipelines to … in a team of 4. Qualifications 3 Years of professional programming experience. Strong proficiency in Python, with a proven track record of backend development Deep experience with FastAPI, RESTful API design, and PostgreSQL Hands-on experience developing scalable systems and backend architectures Familiarity with Langchain, AI, or LLM tooling is a strong plus Proficiency with Docker, GitHub, and More ❯
Posted:

Senior Backend Engineer (Python / FastAPI / Django)

City of London, London, United Kingdom
QOVES
us scale new features across a rapidly growing user base. Expect a fast-paced, high-autonomy role where your work directly impacts the future of the product. Key Responsibilities Design and implement new backend endpoints and services using Python and FastAPI building on the existing codebase Build and maintain scalable REST APIs, integrating PostgreSQL for robust data management Lead … platforms) for authentication, real-time updates, and storage Drive performance, security, and scalability best practices as we scale rapidly in the next 6–12 months Collaborate closely with Product, Design, and Frontend teams to deliver seamless and intuitive user experiences Own key architectural decisions while mentoring engineers and elevating backend engineering standards Build data-driven services and pipelines to … in a team of 4. Qualifications 3 Years of professional programming experience. Strong proficiency in Python, with a proven track record of backend development Deep experience with FastAPI, RESTful API design, and PostgreSQL Hands-on experience developing scalable systems and backend architectures Familiarity with Langchain, AI, or LLM tooling is a strong plus Proficiency with Docker, GitHub, and More ❯
Posted:

Senior Backend Engineer (Python / FastAPI / Django)

london, south east england, united kingdom
QOVES
us scale new features across a rapidly growing user base. Expect a fast-paced, high-autonomy role where your work directly impacts the future of the product. Key Responsibilities Design and implement new backend endpoints and services using Python and FastAPI building on the existing codebase Build and maintain scalable REST APIs, integrating PostgreSQL for robust data management Lead … platforms) for authentication, real-time updates, and storage Drive performance, security, and scalability best practices as we scale rapidly in the next 6–12 months Collaborate closely with Product, Design, and Frontend teams to deliver seamless and intuitive user experiences Own key architectural decisions while mentoring engineers and elevating backend engineering standards Build data-driven services and pipelines to … in a team of 4. Qualifications 3 Years of professional programming experience. Strong proficiency in Python, with a proven track record of backend development Deep experience with FastAPI, RESTful API design, and PostgreSQL Hands-on experience developing scalable systems and backend architectures Familiarity with Langchain, AI, or LLM tooling is a strong plus Proficiency with Docker, GitHub, and More ❯
Posted:

Senior Backend Engineer (Python / FastAPI / Django)

london (city of london), south east england, united kingdom
QOVES
us scale new features across a rapidly growing user base. Expect a fast-paced, high-autonomy role where your work directly impacts the future of the product. Key Responsibilities Design and implement new backend endpoints and services using Python and FastAPI building on the existing codebase Build and maintain scalable REST APIs, integrating PostgreSQL for robust data management Lead … platforms) for authentication, real-time updates, and storage Drive performance, security, and scalability best practices as we scale rapidly in the next 6–12 months Collaborate closely with Product, Design, and Frontend teams to deliver seamless and intuitive user experiences Own key architectural decisions while mentoring engineers and elevating backend engineering standards Build data-driven services and pipelines to … in a team of 4. Qualifications 3 Years of professional programming experience. Strong proficiency in Python, with a proven track record of backend development Deep experience with FastAPI, RESTful API design, and PostgreSQL Hands-on experience developing scalable systems and backend architectures Familiarity with Langchain, AI, or LLM tooling is a strong plus Proficiency with Docker, GitHub, and More ❯
Posted:

Senior Backend Engineer (Python / FastAPI / Django)

slough, south east england, united kingdom
QOVES
us scale new features across a rapidly growing user base. Expect a fast-paced, high-autonomy role where your work directly impacts the future of the product. Key Responsibilities Design and implement new backend endpoints and services using Python and FastAPI building on the existing codebase Build and maintain scalable REST APIs, integrating PostgreSQL for robust data management Lead … platforms) for authentication, real-time updates, and storage Drive performance, security, and scalability best practices as we scale rapidly in the next 6–12 months Collaborate closely with Product, Design, and Frontend teams to deliver seamless and intuitive user experiences Own key architectural decisions while mentoring engineers and elevating backend engineering standards Build data-driven services and pipelines to … in a team of 4. Qualifications 3 Years of professional programming experience. Strong proficiency in Python, with a proven track record of backend development Deep experience with FastAPI, RESTful API design, and PostgreSQL Hands-on experience developing scalable systems and backend architectures Familiarity with Langchain, AI, or LLM tooling is a strong plus Proficiency with Docker, GitHub, and More ❯
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Full Stack Web Developer (Next.js / Node.js)

Croydon, Cambridgeshire, UK
Al-Khair Foundation
team. Key Responsibilities Build end-to-end features — from designing APIs to shipping polished frontends. Own full stack development with Next.js 15 (App Router), TypeScript, and Node.js/Nest.js. Design and integrate RESTful APIs, ensuring scalability, performance, and security. Work with PostgreSQL, MongoDB, Prisma, and Mongoose for data modeling and queries. Apply rendering strategies (SSR, SSG, ISR, PPR) to … track record with Next.js (ideally v15 with App Router). Hands-on with backend frameworks (Node.js/Nest.js). Experience with Prisma, PostgreSQL, MongoDB, and Mongoose. Solid grasp of API design, security, and performance optimization. Familiar with state management (Zustand, Redux, useContext). Exposure to project management tools (Jira, Linear, Notion, Trello, etc.). Startup mindset: self-driven More ❯
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Full Stack Web Developer (Next.js / Node.js)

Croydon, England, United Kingdom
Al-Khair Foundation
team. Key Responsibilities Build end-to-end features — from designing APIs to shipping polished frontends. Own full stack development with Next.js 15 (App Router), TypeScript, and Node.js/Nest.js. Design and integrate RESTful APIs, ensuring scalability, performance, and security. Work with PostgreSQL, MongoDB, Prisma, and Mongoose for data modeling and queries. Apply rendering strategies (SSR, SSG, ISR, PPR) to … track record with Next.js (ideally v15 with App Router). Hands-on with backend frameworks (Node.js/Nest.js). Experience with Prisma, PostgreSQL, MongoDB, and Mongoose. Solid grasp of API design, security, and performance optimization. Familiar with state management (Zustand, Redux, useContext). Exposure to project management tools (Jira, Linear, Notion, Trello, etc.). Startup mindset: self-driven More ❯
Posted:

Full Stack Developer

Cambridge, Cambridgeshire, East Anglia, United Kingdom
CURE TALENT LIMITED
developing cutting-edge wearable and connected health technology thats transforming how specific physiological conditions are monitored and managed. Their intelligent devices are redefining possibilities in patient care, blending innovative design with real-world impact. As part of their continued growth, they are now seeking a highly skilled Full Stack Developer to join their growing team. This is a fantastic … opportunity for an experienced engineer who enjoys working across the stack, contributing to the design, development, and deployment of innovative web and mobile applications that support next-generation connected medical systems. Youll work closely with technical and clinical teams to translate complex requirements into scalable, user-focused solutions while helping to shape the companys software architecture and development practices. … Key Responsibilities: Design, develop, and maintain scalable and secure web and mobile applications using Nuxt, Vue, and Ionic/Vue. Build and integrate APIs across mobile, web, and cloud platforms. Ensure performance, scalability, and security of deployed applications. Collaborate with firmware, hardware, and data teams to deliver end-to-end solutions. Write clean, testable, and well-documented code following More ❯
Employment Type: Permanent
Salary: £85,000
Posted:

Senior Software Engineer, Embedded UI

Manchester, Lancashire, United Kingdom
Roku, Inc
finding and taking on a feature or project simply because that problem needs to be solved and shipped. But that individual must work together with different engineering teams, UI design, product teams, and business leadership to make things happen, which means that engineers succeed here because they can maintain that independent spirit and motivation within a deeply collaborative environment. … with OpenGL, DirectX, or any other graphics APIs Experience writing functional and integration testsGood understanding of Core OS concepts like memory management and multi threading A good understanding of API design, considerations and trade offs Consumer electronics experience building Media/Content and/or Ad product Strong verbal and written communication skills (this role involves frequent communication More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer

Birmingham, England, United Kingdom
Hybrid / WFH Options
Propel
a regular on-site presence (2 days onsite). Key Skills: - 5 years professional experience with TypeScript, JavaScript, and Node.js - Experience with frameworks such as React and NextJS, and API Design - Excellent communication skills with stakeholders and team members - Solid understanding of web development fundamentals and performance optimisation techniques - Ability to design, develop, test, deploy, and continuously More ❯
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Senior Technical Architect

London Area, United Kingdom
Hybrid / WFH Options
Anson McCade
months IR35 Status: Inside IR35 Start Date: ASAP Location: Hybrid (occasional travel to Croydon, infrequent) Security Clearance: SC Cleared (Current) Key Skills: Strong background in software architecture RESTful API design, ideally for UI integration Event-driven architecture patterns Familiarity with AWS and Kubernetes Experience with SQL and NoSQL databases Ability to communicate complex technical concepts to non-technical More ❯
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Senior Technical Architect

City of London, London, United Kingdom
Hybrid / WFH Options
Anson McCade
months IR35 Status: Inside IR35 Start Date: ASAP Location: Hybrid (occasional travel to Croydon, infrequent) Security Clearance: SC Cleared (Current) Key Skills: Strong background in software architecture RESTful API design, ideally for UI integration Event-driven architecture patterns Familiarity with AWS and Kubernetes Experience with SQL and NoSQL databases Ability to communicate complex technical concepts to non-technical More ❯
Posted:

Senior Technical Architect

london, south east england, united kingdom
Hybrid / WFH Options
Anson McCade
months IR35 Status: Inside IR35 Start Date: ASAP Location: Hybrid (occasional travel to Croydon, infrequent) Security Clearance: SC Cleared (Current) Key Skills: Strong background in software architecture RESTful API design, ideally for UI integration Event-driven architecture patterns Familiarity with AWS and Kubernetes Experience with SQL and NoSQL databases Ability to communicate complex technical concepts to non-technical More ❯
Posted:

Senior Technical Architect

slough, south east england, united kingdom
Hybrid / WFH Options
Anson McCade
months IR35 Status: Inside IR35 Start Date: ASAP Location: Hybrid (occasional travel to Croydon, infrequent) Security Clearance: SC Cleared (Current) Key Skills: Strong background in software architecture RESTful API design, ideally for UI integration Event-driven architecture patterns Familiarity with AWS and Kubernetes Experience with SQL and NoSQL databases Ability to communicate complex technical concepts to non-technical More ❯
Posted:

Senior Technical Architect

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Anson McCade
months IR35 Status: Inside IR35 Start Date: ASAP Location: Hybrid (occasional travel to Croydon, infrequent) Security Clearance: SC Cleared (Current) Key Skills: Strong background in software architecture RESTful API design, ideally for UI integration Event-driven architecture patterns Familiarity with AWS and Kubernetes Experience with SQL and NoSQL databases Ability to communicate complex technical concepts to non-technical More ❯
Posted:

Engineering Manager

Manchester, England, United Kingdom
Hybrid / WFH Options
Suits Me
team of engineers, helping them grow technically and professionally Owning delivery of critical platform services that power Suits Me's financial products Overseeing the full development lifecycle, from architectural design and planning to deployment, observability, and continuous improvement Establishing engineering standards, including code quality, CI/CD, testing, and documentation practices Driving adoption of best practices around API design, data modelling, and event-driven architectures Partnering with Product, Platform, and Security teams to ensure our systems are robust, scalable, and compliant Managing technical priorities, resource planning, and delivery schedules in line with strategic goals Contributing to longer-term technology strategy and roadmap evolution What you’ll bring to Suits Me Proven experience managing or technically leading … a backend or platform engineering team Strong foundation in modern backend technologies - ideally including Node.js/TypeScript, containers, and serverless architectures Deep understanding of system design, distributed systems, and operational reliability Familiarity with cloud-native development (AWS preferred) Excellent communication skills and the ability to align technical delivery with business objectives A collaborative, supportive leadership style that promotes autonomy More ❯
Posted:

Engineering Manager

warrington, cheshire, north west england, united kingdom
Hybrid / WFH Options
Suits Me
team of engineers, helping them grow technically and professionally Owning delivery of critical platform services that power Suits Me's financial products Overseeing the full development lifecycle, from architectural design and planning to deployment, observability, and continuous improvement Establishing engineering standards, including code quality, CI/CD, testing, and documentation practices Driving adoption of best practices around API design, data modelling, and event-driven architectures Partnering with Product, Platform, and Security teams to ensure our systems are robust, scalable, and compliant Managing technical priorities, resource planning, and delivery schedules in line with strategic goals Contributing to longer-term technology strategy and roadmap evolution What you’ll bring to Suits Me Proven experience managing or technically leading … a backend or platform engineering team Strong foundation in modern backend technologies - ideally including Node.js/TypeScript, containers, and serverless architectures Deep understanding of system design, distributed systems, and operational reliability Familiarity with cloud-native development (AWS preferred) Excellent communication skills and the ability to align technical delivery with business objectives A collaborative, supportive leadership style that promotes autonomy More ❯
Posted:

Engineering Manager

bolton, greater manchester, north west england, united kingdom
Hybrid / WFH Options
Suits Me
team of engineers, helping them grow technically and professionally Owning delivery of critical platform services that power Suits Me's financial products Overseeing the full development lifecycle, from architectural design and planning to deployment, observability, and continuous improvement Establishing engineering standards, including code quality, CI/CD, testing, and documentation practices Driving adoption of best practices around API design, data modelling, and event-driven architectures Partnering with Product, Platform, and Security teams to ensure our systems are robust, scalable, and compliant Managing technical priorities, resource planning, and delivery schedules in line with strategic goals Contributing to longer-term technology strategy and roadmap evolution What you’ll bring to Suits Me Proven experience managing or technically leading … a backend or platform engineering team Strong foundation in modern backend technologies - ideally including Node.js/TypeScript, containers, and serverless architectures Deep understanding of system design, distributed systems, and operational reliability Familiarity with cloud-native development (AWS preferred) Excellent communication skills and the ability to align technical delivery with business objectives A collaborative, supportive leadership style that promotes autonomy More ❯
Posted:

IAM/SSO Engineer

Addison, Illinois, United States
Collabera
Proficient in Linux, Windows, Tomcat, Web Logic, WebSphere environments Ability to utilize various programming or scripting languages such as Shell scripting, Perl, Java, Python, JavaScript and PowerShell Understanding of API design concepts, RESTful Services and modern application interaction patterns Familiarity with deployments and integration of IAM solutions within the cloud (Azure, AWS or GCP) Experience in deploying large More ❯
Employment Type: Permanent
Salary: USD 68 Hourly
Posted:

Technical Product Manager

reigate, south east england, united kingdom
WTW
vision. Other Highly Desirable, But Not Essential Skills Are Background in Software development, data science, or data engineering. Exposure to cloud platforms (e.g., AWS, Azure, GCP). Understanding of API design, microservices architecture, or event-driven systems. Experience in B2B enterprise software environments with complex stakeholder landscapes. Product management certification (e.g., CSPO, Pragmatic Institute, AIPMM). Degree-educated More ❯
Posted:

Senior Mobile Engineer

London, United Kingdom
Skin Analytics Ltd
Strong ability to integrate with REST APIs, manage secure authentication flows, and handle offline scenarios Basic understanding of backend systems (e.g. Node.js, AWS) to debug issues and contribute to API design discussions Proficient in Git, with best practices for branching, tagging, and changelogs Comfortable using tools like Jira, TestRail, and writing technical documentation Experience working in cross-functional More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Integration Engineer SC Cleared StevenageH/ybrid

Stevenage, Hertfordshire, England, United Kingdom
Akkodis
solutions for both public and private sector programmes - and we're looking for an Integration Engineer to join our growing Software & Integration team. As an Integration Engineer, you'll design, build, and document integrations across multiple cloud platforms, enabling seamless data flow between critical systems. You'll collaborate with a diverse team of software engineers, cloud architects, business analysts … and QA specialists to deliver scalable, secure, and maintainable integration solutions that drive real-world impac t. Design, develop, and implement integrations in AWS and Azure , including low-code environments. Hands-on experience with low-code/no-code integration platforms (AWS, Azure, Power Automate, or MuleSoft Composer). Strong understanding of cloud architectures in AWS and/or … Azure. Familiarity with API design , REST/SOAP services , and event-driven architectures . Proven ability to document technical solutions and data flows. Good knowledge of DevOps principles , CI/CD , and version control . Experience integrating systems such as ServiceNow, SAP, Salesforce, or Pega .If you're passionate about Integration - this is a project you'll want More ❯
Employment Type: Full-Time
Salary: £60,000 - £75,000 per annum
Posted:

Data Engineer

Belfast, United Kingdom
Hybrid / WFH Options
PA Consulting
We believe in the power of ingenuity to build a positive human future. We challenge where it matters and own the outcome. We combine strategic thinking, customer-centric service design, and agile engineering practices to accelerate innovation in a tech-driven world. Why consider joining our Digital & Data community? Join our Digital & Data team working alongside product, design … work with the following technologies to ensure scalable, high-performance applications: .NET (including Entity Framework 6 and Core, ASP.NET MVC and MVC Core) CSS, HTML, JavaScript/Typescript REST API design Microsoft SQL Server, MySQL, Postgres AWS What you can expect Work to agile best practices and cross-functionally with multiple teams and stakeholders. You'll be using More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Net Engineer

Belfast, United Kingdom
Hybrid / WFH Options
PA Consulting
We believe in the power of ingenuity to build a positive human future. We challenge where it matters and own the outcome. We combine strategic thinking, customer-centric service design, and agile engineering practices to accelerate innovation in a tech-driven world. Why consider joining our Digital & Data community? Join our Digital & Data team working alongside product, design … work with the following technologies to ensure scalable, high-performance applications: .NET (including Entity Framework 6 and Core, ASP.NET MVC and MVC Core) CSS, HTML, JavaScript/Typescript REST API design Microsoft SQL Server, MySQL, Postgres AWS What you can expect Work to agile best practices and cross-functionally with multiple teams and stakeholders. You'll be using More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
API Design
10th Percentile
£52,500
25th Percentile
£61,250
Median
£75,000
75th Percentile
£100,000
90th Percentile
£132,500