101 to 125 of 510 Permanent API Design Jobs

Senior Software Engineer - Java, Node.js & AWS

Location
Leeds, England, United Kingdom
pride in delivering software that makes a real business impact. What You'll Do As a Senior Software Engineer - Java, Node.js & AWS, you will: Design, build and maintain scalable, secure and resilient backend systems using modern Java, Node.js and the Spring ecosystem. Lead technical design and architectural discussions … Streams, Lambdas and Optional Spring Boot and the wider Spring ecosystem NodeJS Spring Data JPA/Hibernate Spring Security including OAuth2 and JWT REST API design and implementation Microservices and distributed system design SQL databases with strong query optimisation skills NoSQL databases Messaging technologies such as Kafka ...

Senior Software Engineer - Java, Node.js & AWS

Location
Manchester, England, United Kingdom
pride in delivering software that makes a real business impact. What You'll Do As a Senior Software Engineer - Java, Node.js & AWS, you will: Design, build and maintain scalable, secure and resilient backend systems using modern Java, Node.js and the Spring ecosystem. Lead technical design and architectural discussions … Streams, Lambdas and Optional Spring Boot and the wider Spring ecosystem NodeJS Spring Data JPA/Hibernate Spring Security including OAuth2 and JWT REST API design and implementation Microservices and distributed system design SQL databases with strong query optimisation skills NoSQL databases Messaging technologies such as Kafka ...

Senior Software Engineer - Java, Node.js & AWS

Location
City of Edinburgh, Scotland, United Kingdom
pride in delivering software that makes a real business impact. What You'll Do As a Senior Software Engineer - Java, Node.js & AWS, you will: Design, build and maintain scalable, secure and resilient backend systems using modern Java, Node.js and the Spring ecosystem. Lead technical design and architectural discussions … Streams, Lambdas and Optional Spring Boot and the wider Spring ecosystem NodeJS Spring Data JPA/Hibernate Spring Security including OAuth2 and JWT REST API design and implementation Microservices and distributed system design SQL databases with strong query optimisation skills NoSQL databases Messaging technologies such as Kafka ...

Senior Software Engineer - Java, Node.js & AWS

Location
Greater London, England, United Kingdom
pride in delivering software that makes a real business impact. What You'll Do As a Senior Software Engineer - Java, Node.js & AWS, you will: Design, build and maintain scalable, secure and resilient backend systems using modern Java, Node.js and the Spring ecosystem. Lead technical design and architectural discussions … Streams, Lambdas and Optional Spring Boot and the wider Spring ecosystem NodeJS Spring Data JPA/Hibernate Spring Security including OAuth2 and JWT REST API design and implementation Microservices and distributed system design SQL databases with strong query optimisation skills NoSQL databases Messaging technologies such as Kafka ...

Sr Partner Agent Architect (UK)

Location
Greater London, England, United Kingdom
Architect at Parloa, you will operate at the intersection of enterprise solution architecture, conversational AI, and partner enablement, helping strategic partners and enterprise customers design, implement, and scale AI-driven customer experiences.This is a highly consultative, customer-facing role where you will guide partners and clients through solution discovery … solution architecture, enterprise integration design, conversational architecture, and implementation strategy for enterprise AI Agents. You will design how Parloa’s platform integrates into complex enterprise environments, solve multi-system integration challenges, and apply systems thinking to build reliable, scalable AI solutions.While you bring strong technical depth ...

Senior Python Developer

Hiring Organisation
Tech 4
Location
City of London, London, United Kingdom
Employment Type
Permanent
play a key part in driving the adoption of AI across engineering, leveraging emerging technologies and embedding AI-native workflows to improve how they design, build, and deliver software. This role is predominantly hands-on, with around 2030% of time on technical leadership: architecture, mentoring, and shaping … generated code to our standards for security, reliability, and cost-efficiency (FinOps). These are first-class concerns in agentic pipelines, not afterthoughts. Design, build, and operate software across our platform, applying the same rigour to AI-augmented work as to anything else you ship. Embed deeply with Product ...

Technical Architect

Location
Greater London, England, United Kingdom
Spring Boot background to support customer‐specific delivery workstreams and wider digital transformation projects. The role requires hands‐on architecture experience across modern service design, integration, cloud‐hosted platforms and delivery governance. The successful candidate will help shape robust, maintainable and scalable services, working closely with engineering teams, delivery … Boot services and supporting platform components. Produce high‐quality architecture artefacts including HLDs, LLDs, roadmaps, integration patterns, sequence diagrams and data models. Lead technical design governance, ensuring alignment with enterprise architecture principles, GDS Service Standard and delivery best practice. Provide technical assurance across delivery teams, suppliers and stakeholders. ...

Senior Fullstack Engineer (Java/React/Python)

Location
Leeds, England, United Kingdom
enjoy solving complex problems, challenging assumptions, collaborating openly, and taking pride in delivering software that makes a real business impact. What You'll Do Design, build and maintain scalable, secure and resilient backend systems using modern Java and the Spring ecosystem, alongside rich, responsive frontends built with React. Lead … technical design and architectural discussions, ensuring solutions are maintainable, performant and aligned with best practices across the stack. Develop and evolve RESTful APIs with a focus on security, versioning, performance and reliability. Build intuitive, high-performance user interfaces in React that integrate seamlessly with backend services. Champion engineering excellence ...

Senior Fullstack Engineer (Java/React/Python)

Location
Manchester, England, United Kingdom
enjoy solving complex problems, challenging assumptions, collaborating openly, and taking pride in delivering software that makes a real business impact. What You'll Do Design, build and maintain scalable, secure and resilient backend systems using modern Java and the Spring ecosystem, alongside rich, responsive frontends built with React. Lead … technical design and architectural discussions, ensuring solutions are maintainable, performant and aligned with best practices across the stack. Develop and evolve RESTful APIs with a focus on security, versioning, performance and reliability. Build intuitive, high-performance user interfaces in React that integrate seamlessly with backend services. Champion engineering excellence ...

Senior Fullstack Engineer (Java/React/Python)

Location
City of Edinburgh, Scotland, United Kingdom
enjoy solving complex problems, challenging assumptions, collaborating openly, and taking pride in delivering software that makes a real business impact. What You'll Do Design, build and maintain scalable, secure and resilient backend systems using modern Java and the Spring ecosystem, alongside rich, responsive frontends built with React. Lead … technical design and architectural discussions, ensuring solutions are maintainable, performant and aligned with best practices across the stack. Develop and evolve RESTful APIs with a focus on security, versioning, performance and reliability. Build intuitive, high-performance user interfaces in React that integrate seamlessly with backend services. Champion engineering excellence ...

Senior Fullstack Engineer (Java/React/Python)

Location
Greater London, England, United Kingdom
enjoy solving complex problems, challenging assumptions, collaborating openly, and taking pride in delivering software that makes a real business impact. What You'll Do Design, build and maintain scalable, secure and resilient backend systems using modern Java and the Spring ecosystem, alongside rich, responsive frontends built with React. Lead … technical design and architectural discussions, ensuring solutions are maintainable, performant and aligned with best practices across the stack. Develop and evolve RESTful APIs with a focus on security, versioning, performance and reliability. Build intuitive, high-performance user interfaces in React that integrate seamlessly with backend services. Champion engineering excellence ...

Senior Full Stack Developer

Location
Leeds, England, United Kingdom
Overview Senior Full Stack Developer role in Leeds. Hybrid work arrangement with two days in the office each week. You will design, build, and deliver high-quality solutions across the full technology stack in a cloud-native environment, collaborating with Product, Delivery, and Platform teams to enable secure, scalable … user-focused applications. Responsibilities Design, develop, and maintain scalable full-stack applications across the front end, back end, APIs, and data integrations. Lead the end-to-end delivery of features from technical design and architecture through development, testing, and deployment. Produce clean, maintainable, and well-tested code following ...

Senior Software Engineer | API Enterprise

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

Lead Software Engineer

Location
Manchester, England, United Kingdom
scalable and future-proof Designing and developing secure, high-performance APIs and integrating third-party tools and services Producing and reviewing detailed Solution Design documentation, ensuring consideration of security, performance, and system-wide impact Driving high standards through code reviews, mentoring engineers, and contributing to CI/… some of the following skills: Strong experience with TypeScript, Node.js, and modern frontend frameworks such as React or Angular Deep understanding of software architecture, design patterns, and API design principles Experience working with CI/CD pipelines, automated testing frameworks (e.g. Jest, Playwright), and version control Proven ...

Senior Software Engineer

Hiring Organisation
Hackajob Ltd
Location
Knutsford, Cheshire, North West, United Kingdom
Employment Type
Permanent
enterprise adoption. Contributing to event standards, patterns, and best practices, enabling teams across the organisation to build confidently on the platform. Making considered design choices that balance scalability, resilience, security, and developer experience. Close collaboration with product, architecture, and engineering teams to align platform capabilities with business and regulatory … infrastructure as code, and deployment pipelines. Hands-on experience working with cloud technologies such as AWS, Terraform, CI/CD tooling, and Kubernetes to design, build, and deploy reliable, cloud-native applications. Working knowledge of other cloud platforms, such as Azure and GCP. Some other highly valued skills ...

Ui Full Stack Developer

Hiring Organisation
Knackhook
Location
Santa Clara, California, United States
Employment Type
Any
Salary
USD Annual
Full Stack Developer to our Direct Client in Santa Clara, CA. The ideal candidate will have strong expertise in Node.js, React, Microservices architecture, and API development. Job Requirements Design, develop, test, and maintain full-stack applications using React and Node.js. Build and enhance scalable microservices and RESTful APIs … following modern engineering standards. Design and implement secure, well-documented APIs for internal and external consumers. Develop cloud-native, event-driven architectures supporting high-scale applications. Collaborate with product management and UX teams to translate business requirements into technical solutions. Participate in architecture reviews, code reviews, and engineering best ...

Senior Full Stack Engineer (Typescript, React, Node.js) JBLE1 NI

Hiring Organisation
Ocho
Location
Belfast, UK
Role As a Senior Full-Stack Software Engineer, you will work within a cross-functional team of engineers, product managers and designers to design and build core platform capabilities, with particular focus on authentication, authorisation and auditing. You will move comfortably across the stack, from React front ends … mechanisms that other engineering teams build on top of. You will have real autonomy over how problems get solved, work directly with product and design to take ideas from concept to delivery, and help shape engineering standards as the platform scales. This role suits someone who enjoys hard distributed ...

Solution Architect

Hiring Organisation
NTT DATA
Location
London, UK
Employment Type
Full-time
team you'll be working with: We are looking for a Solution Architect to help our clients design and deliver modern, scalable and secure digital solutions, primarily on Microsoft technologies. You will combine architecture leadership with client-facing consulting. That means working directly with stakeholders to understand their goals … shaping technical options and trade-offs, and guiding delivery teams to implement the design safely. This role suits someone who enjoys turning ambiguity into clear decisions, can explain technology, and is happy getting close to the code when needed. What you'll be doing: Discovery and stakeholder engagementLead workshops ...

Agentforce Operations FDE

Location
Greater London, England, United Kingdom
data grounding infrastructure using RAG (Retrieval-Augmented Generation) , vector databases, search indexes, and knowledge bases to supply agents with accurate enterprise context. Enterprise Integration & API Management: Develop and maintain custom APIs (REST, GraphQL, webhooks) and integration pipelines connecting AFO/Agentforce to Salesforce Data Cloud (Data 360), cloud warehouses … Deep experience with LLM orchestration, prompt tuning, and building RAG pipelines, vector search indexes, and knowledge base retrievers for enterprise data. Multi-Agent Systems & API Mastery: Practical experience with API design (REST/SOAP/webhooks) and modern agent protocols (e.g., MCP, tool calling, or event-driven ...

Software Engineer III - Full Stack React/Java - Risk Frameworks

Hiring Organisation
JP Morgan Chase
Location
Glasgow, UK
Employment Type
Full-time
talented engineers, influence technical direction, and make a meaningful impact at one of the world's leading financial institutions. Job responsibilitiesExecute software solutions across design, development, and technical troubleshooting, thinking beyond conventional approaches to break down complex problems and build scalable solutionsCreate secure, high-quality production code and maintain … algorithms that run synchronously with appropriate systemsProduce architecture and design artifacts for complex applications, ensuring design constraints are met throughout the software development lifecycleBuild and maintain full-stack features in close partnership with product and design teams to deliver high-quality, accessible user experiencesDevelop modern web interfaces ...

Lead Software Engineer - AI/Java Full Stack

Hiring Organisation
JP Morgan Chase
Location
Glasgow, UK
Employment Type
Full-time
will contribute across multiple domains, partnering with business and technology stakeholders to deliver strategic platforms that enable the firm's objectives. Job ResponsibilitiesLead the design, development, and delivery of innovative software solutions, solving complex problems with creative and forward-thinking approachesBuild and maintain high-quality, secure, and production-grade … modern front-end frameworks (e.g., React)Demonstrated experience in designing scalable, secure, and resilient distributed systemsStrong understanding of modern architecture patterns (microservices, event-driven, API-first)Experience with CI/CD pipelines, containerization (Docker, Kubernetes/ECS/EKS), and Infrastructure as CodeExpertise in API design (REST ...

Senior Engineer - Payments

Location
Greater London, England, United Kingdom
development of our next-generation platform channels. Partner on the delivery of new products while continuously maintaining and improving existing ones. Architecture & Design: Collaborate with team members and engineering leaders to design new services and components utilizing our internal Request for Comments (RFC) process. End-to-End Ownership … Micro Frontends (MFEs) is a major plus. DevOps & Cloud: Hands-on experience with Docker, Kubernetes, Terraform, and AWS. Foundations: Strong understanding of system architecture, API design, scalable service integration, Linux systems, and Git version control. Core Soft Skills: Strong knowledge of basic algorithms, object-oriented/functional design ...

Senior Software Engineer (Cloud)

Location
Greater London, England, United Kingdom
will develop our suite of security-focused cloud services and infrastructure. You’ll have the opportunity to learn, grow, and directly contribute to the design and implementation of scalable, reliable, and secure systems. You’ll collaborate closely with the rest of our engineering team to design APIs, build … with our embedded platform. This position is ideal for a mid-level or senior engineer who is looking for an opportunity to own the design and execution of new products. Key Responsibilities Design, build, and maintain cloud infrastructure and cloud-based services and APIs to support the functionality ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
React Native and Expo application, the Python and FastAPI backend service, the Terraform infrastructure, and the Argo CD and Helm deployment configuration. You'll design, build, deploy, and operate the next generation of Cloudbeds' point-of-sale experience for hospitality properties, covering staff and device access, floor and table … ownership, thoughtful architecture, direct customer impact, and engineers who are comfortable working across multiple layers of the stack. What You Bring to the Team Design, build, and operate customer‐facing POS experiences across React Native, Expo, TypeScript, and Python services, with a strong focus on usability and reliability Develop ...

Senior Associate Solutions Designer, Automation

Hiring Organisation
Visa
Location
Austin, Texas, United States
Employment Type
Permanent
Salary
USD Annual
automation skills. You will work on innovative solutions that combine deep technical expertise with AI/ML capabilities to drive next-generation solution design and architecture. Essential Functions Develop and architect solutions that are robust and scalable, integrating AI capabilities with Visa's technical ecosystem Develop integrations with … secure, highly available and scalable infrastructure solutions through automation Experienced with docker, container and Kubernetes for container orchestration Hands-on experience in driving the design and implementation of solutions on one of the major public clouds, such as AWS, GCP, Azure with expertise in assessing, developing or migrating well ...