26 to 50 of 85 Remote/Hybrid API Design Jobs

Software Development Engineer III

Hiring Organisation
Jobleads-UK
Location
United Kingdom
remote engineering team focused on building scalable, high-performance backend solutions that power modern software products. In this role, you will contribute to the design, development, and optimization of distributed systems while delivering features that have a direct impact on end users. You'll collaborate with experienced engineers … excellent opportunity for engineers who enjoy solving complex technical challenges, embracing modern development practices, and working across the full software development lifecycle. Accountabilities Design, develop, and maintain scalable backend services, microservices, and RESTful APIs capable of handling production workloads with high reliability and performance. Deliver features from initial design ...

Software Engineer – AI-Assisted Full-Stack Developement

Hiring Organisation
Jobleads-UK
Location
United Kingdom
role offers the opportunity to build modern software solutions while leveraging AI-assisted development tools to accelerate engineering workflows. You will contribute to the design, development, testing, and deployment of scalable full-stack applications. The position combines backend engineering, frontend development, cloud technologies, automation, and AI-powered coding practices. … Development will be responsible for designing, developing, and maintaining reliable software solutions while using AI-assisted tools to improve productivity, quality, and engineering efficiency. Design, develop, test, deploy, and maintain scalable web applications using technologies such as Python, FastAPI, React, JavaScript, TypeScript, and Node.js. Build and maintain REST ...

Senior Frontend Engineer, Marketing Website

Hiring Organisation
Appcast
Location
London, UK
accordingly.The defining challenge of this role is composability: a marketing site that marketers, and increasingly AI agents, can build pages with, without breaking design, performance or SEO.You can expect to:Build, scale and evolve our section library: the Astro components, Sanity schemas and design tokens that … compose marketing pages consistently and accessibly.Own the content model. Design schemas that resist misuse, so an editor, or an agent, can build a page that is correct by construction rather than correct by review.Take Figma component specs all the way to production: responsive across mobile, tablet and desktop, accessible ...

Enterprise Solutions Architect

Hiring Organisation
Jobleads-UK
Location
Oxford, England, United Kingdom
lineage and enabling self‐service analytics safely Enterprise SaaS integration across domains with Salesforce CRM, Dynamics 365 F&O & SAP Success Factors Strong integration design capability: Domain Driven Design, event‐based integration, API design principles, resilience patterns, operational considerations (SLAs, observability, incident readiness) Excellent stakeholder management ...

Engineering Manager, Payments & Fraud Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
depth in fraud prevention, abuse detection, rate limiting, or bot protection to guide architectural decisions across a complex, multi‐layered fraud stack. Distributed systems design: Proven experience designing, building, and operating scalable, highly available distributed systems in a cloud‐native environment. Modern tech stack experience: Demonstrable experience with cloud … platforms (preferably AWS), containerisation (Docker, Kubernetes), and API design (gRPC, REST). Database expertise: Hands‐on experience with both relational and NoSQL databases. A people‐first approach: Deep commitment to the growth and well‐being of your team, with proven experience in coaching, mentorship, and performance management. Commercial ...

Engineering Manager | Payments, Abuse, and Conversion

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
depth in fraud prevention, abuse detection, rate limiting, or bot protection to guide architectural decisions across a complex, multi-layered fraud stack. Distributed systems design: Proven experience designing, building, and operating scalable, highly available distributed systems in a cloud-native environment. Modern tech stack experience: Demonstrable experience with cloud … platforms (preferably AWS), containerisation (Docker, Kubernetes), and API design (gRPC, REST). Database expertise: Hands-on experience with both relational and NoSQL databases. A people-first approach: Deep commitment to the growth and well-being of your team, with proven experience in coaching, mentorship, and performance management. Commercial ...

Senior Cloud Software Engineer

Hiring Organisation
Jobleads-UK
Location
Cambridge, England, United Kingdom
Title: Senior Cloud Software Engineer Location: Cambridge, UK - Hybrid Employment Type: Full-time Key Responsibilities Design, develop, and maintain secure, resilient features for AVEVA CONNECT Core Services Contribute to technical design and implementation decisions across cloud and service-based architectures Build and improve services using modern engineering practices … engineering productivity, code quality, and delivery Work collaboratively in an agile development team and share knowledge on cloud technologies and practices Essential Requirements Strong design and coding skills, with a record of delivering high-quality technical outcomes Experience developing microservice or service-oriented architectures Good understanding of REST API ...

Cloud Engineer

Hiring Organisation
Jobleads-UK
Location
Leeds, England, United Kingdom
core mission capabilities. You’ll work as part of empowered, autonomous DevOps teams with regular contact with end‐users to flexibly and efficiently understand, design, develop, deploy and maintain applications and services on AWS. You’ll be encouraged to identify new ways of solving problems and get to work … help you with them AWS Certification at Associate level eg Solution Architect, Developer or DevOps Expertise in microservices and API design Docker, and container runtime platforms such as Kubernetes, EKS, ECS etc Strong understand of operational concepts on AWS, particularly monitoring and observability, FinOps Utilising CI/ ...

Software Engineering Manager

Hiring Organisation
Jobleads-UK
Location
Bristol, England, United Kingdom
flow metrics, communicating timelines, dependencies, and risks early and transparently. Establish engineering guardrails across scope, quality, and non-functional requirements, enabling teams to design optimal solutions within them. Champion observability and operational excellence, ensuring system health, SLOs, and alerting are visible and actively managed. Partner with Tech Leads … Architects on system design and evolution, bringing structured thinking to complex, distributed environments. Foster a culture of ownership, collaboration, and continuous improvement, helping teams navigate technical and product challenges with clarity and purpose. Grow and develop engineers through coaching, feedback, hiring, and creating an environment that supports autonomy, mastery ...

Senior Product Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
contexts Use customer feedback, analytics, and direct user insights to inform technical decisions, prioritise improvements, and validate that shipped features deliver measurable value Design and implement complex data flows, API integrations, and background processing systems that handle high-volume operations reliably while maintaining system performance and data integrity … Partner with product, design, and customers to shape solutions early, translating business requirements into technical architecture while surfacing risks and opportunities that impact customer outcomes Mentor and coach other engineers, raising the bar for technical excellence through code reviews, pair programming, and architectural guidance Beyond the tech ...

Solution Architect

Hiring Organisation
Yorkshire Water
Location
Bradford, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
that drive business transformation. Working closely with stakeholders, engineering teams and platform specialists, you'll translate complex business needs into innovative technical solutions, championing API-led and event-driven architecture principles. You'll also help drive the adoption of emerging AI capabilities, ensuring AI-powered solutions are implemented … will: Partner with business stakeholders, solution architects and delivery teams to understand business needs and translate them into innovative, future-ready solution designs. Design, shape and govern scalable, secure and highly available solutions using Microsoft Azure technologies, ensuring they meet both current and future business demands. Drive the adoption ...

Senior Full Stack Java Developer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
security etc). Working within a project management/agile delivery methodology Experience in technical ownership for a product or software solution, covering design, estimation, shaping and user story/requirement creation Documentation of solutions (e.g. architecture, configuration, release, support-handover Collaborate and liaise with other Version … including microservices and message-driven architectures NFR/Non-Functional requirement understanding and experience developing applications with this in mind Application/Digital Services Design experience Experience in software engineering practices like Code Reviews, CI/CD Pipelines and SOLID/DRY principals Hands-on developing/coding role ...

Lead Web Developer

Hiring Organisation
Avanti Recruitment
Location
Aberdeen, Aberdeen City, City of Aberdeen, United Kingdom
Employment Type
Permanent
Salary
£65000 - £75000/annum
help define technical direction, improve engineering standards and support the continued evolution of a modern cloud-based software platform. Key Responsibilities Lead the design and architecture of scalable web applications Build modern applications using React and/or Angular Develop backend services using Node.js or similar technologies Design … Angular expertise Good backend development experience with Node.js or similar Experience building scalable enterprise applications Knowledge of distributed systems and microservices Experience with API design and integration Exposure to Kafka, RabbitMQ or similar messaging technologies Cloud experience with Azure, AWS or similar CI/CD and Agile development ...

Senior AI Engineer

Hiring Organisation
Jobleads-UK
Location
City of Edinburgh, Scotland, United Kingdom
Consultant) to join our Technology Delivery team. In this role, you’ll combine deep expertise in AI/ML engineering and software development to design, build, and deploy advanced generative AI and agentic systems for leading financial services clients. You’ll work hands‐on across the full AI engineering … client expectations. What You’ll Do Architect and develop autonomous AI systems leveraging multi‐modal large language models across text, image, audio, and video Design and implement agentic workflows using prompt engineering, Retrieval‐Augmented Generation (RAG), APIs, and enterprise data integrations Fine‐tune, optimize, and deploy large language ...

GenAI Full-Stack Engineer Lead

Hiring Organisation
Jobleads-UK
Location
Belfast City District, Northern Ireland, United Kingdom
organisation to build scalable developer platforms, influence engineering strategy and drive the adoption of Generative AI and modern engineering practices. Key Responsibilities Drive the design and delivery of enterprise-scale applications supporting critical business functions and large user populations. Remain hands-on with software architecture, system design, code … containers, microservices and event-driven architectures. Strong understanding of distributed systems, resiliency patterns, scalability and performance engineering. Strong knowledge of SQL and NoSQL technologies, API design and integration patterns. Excellent communication and stakeholder management skills with the ability to influence technology decisions across numerous teams and organisations. Growth ...

Senior C# Engineer .NET 9, AWS Lambda, SQS, SNS Outside IR35

Hiring Organisation
Smart Sourcer Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £700 to £800 per day
Overview: Youll operate as the technical spearhead for a greenfield product build, reporting to the Director of Engineering. Expect deep backend engineering, distributed system design, and high-quality serverless delivery, plus the chance to adopt modern AI-assisted development practices as part of your workflow. What Youll Bring: Senior … ability to architect and lead distributed REST microservices at scale. Strong authority in AWS serverless engineering: Lambda-first mindset, hands-on experience with API Gateway, SQS, Step Functions, EventBridge and IAM. Deep data expertise across Aurora MySQL and DynamoDB: schema design, access patterns, indexing, query tuning, and pragmatic ...

Principal Software Engineering (Azure and Integration)

Hiring Organisation
Jobleads-UK
Location
Windsor, England, United Kingdom
product suites. Translate business and technical requirements into scalable, resilient and cost‐effective solutions, ensuring alignment with wider enterprise architecture. Provide technical leadership through design reviews, code reviews and architectural governance, supporting high‐quality, secure and maintainable software delivery. Lead the evolution and adoption of engineering practices, principles … designing scalable, resilient and secure technical architectures, with the ability to produce both high‐level and detailed solution designs. Extensive knowledge of integration and API design patterns, including REST APIs, event‐driven architectures, messaging, microservices and orchestration. Expert understanding of modern software engineering principles and architecture patterns, including ...

Solutions Architect

Hiring Organisation
Reed Technology
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent
Salary
£70,000
early-stage architecture definition, ensuring business and technical requirements are appropriately translated into solution designs. Support impact assessments, architectural governance activities, and Technical Design Authority (TDA) submissions. Design and assure solutions spanning Internet of Things (IoT), Access Control, Building Management Systems (BMS), Building Information Modelling (BIM), asset data … enterprise IT infrastructure. Define integration approaches, API strategies, and data flows across digital platforms and operational technologies. Engage with internal teams and third-party suppliers, facilitating technical reviews and evaluating architectural options to support informed decision-making. Required Skills & Qualifications: Broad understanding of IoT, enterprise data, BIM, system integration ...

Engineering Manager

Hiring Organisation
Jobleads-UK
Location
United Kingdom
systems, and payment infrastructure. Guide engineers through complex technical challenges and provide hands-on support when needed. Establish and promote engineering best practices around API design, testing, security, performance, and maintainability. Collaborate closely with Product, Backend, Payments, and other cross-functional teams to align technical solutions with business … backend engineering background with experience in Java, Golang, Kotlin, or similar programming languages. Solid knowledge of microservices architectures, APIs, event-driven systems, and integration design patterns. Experience working with SQL and relational databases. Understanding of secure software development practices and OWASP principles. Experience establishing standards for AI-assisted software ...

Software Engineer (Indexer Focus)

Hiring Organisation
Jobleads-UK
Location
United Kingdom
structure, state, and zero‐knowledge proofs). We value breadth and curiosity across the platform as much as depth in any single component. Duties Design, build, and operate the Indexer’s components in Rust — the chain indexer, the wallet indexer, the SPO indexer (Cardano partner‐chain data … GraphQL API — keeping the architecture modular and maintainable. Build and maintain the data pipeline that fetches blocks and transactions from the Midnight node via subxt, handling finalised‐block tracking, gap backfilling, and continuous real‐time indexing. Design efficient schemas and queries across PostgreSQL (cloud) and SQLite (standalone ...

Senior Backend Python Engineer

Hiring Organisation
Interact Consulting Limited
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
What were looking for: Hands-on experience running real production workloads on AWS not just deploying to it Strong Postgres/SQL skills: schema design, query tuning, migrations Solid API design chops: clear contracts, versioning, backwards compatibility Python-first mindset (FastAPI or similar) Redis experience: caching patterns ...

Full Stack Developer

Hiring Organisation
Ashdown Group
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
work from home 1 day a week if desired. The salary on offer is £50,000-£62,000 DOE plus good benefits. Key Responsibilities Design, develop, and maintain scalable web applications using modern frameworks and technologies. Integrate Twilio APIs for voice, messaging, and video communication features. Collaborate with product … Twilio APIs (voice, SMS, video) and related integrations. Proven ability to build and work with real-time, event-driven systems. Solid grasp of RESTful API design and microservice architecture. Hands-on experience with AWS serverless technologies including DynamoDB, Lambda, and API Gateway. Familiarity with CI/ ...

Principal Software Engineer

Hiring Organisation
Searchability (UK) Ltd
Location
Liverpool, Merseyside, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
platform and influence engineering strategy Work within a senior, AI-first engineering environment KEY POINTS Principal-level position with significant technical ownership Leading the design and development of a modern platform rebuild Strong focus on Node.js, TypeScript, React and cloud technologies Opportunity to shape engineering standards, architecture … role where you'll help shape the future of a modern, large-scale platform whilst remaining hands-on with development. You'll lead the design and delivery of scalable backend services, APIs, integrations and data flows, whilst providing architectural guidance across the wider engineering team. Although the role ...

Software Developer - AIO (Typescript)

Hiring Organisation
Jobleads-UK
Location
United Kingdom
build the next generation of AI e-commerce platforms. What you will be responsible for Driving technical decision-making, including technology selection, architecture design, and system scalability Designing and implementing high-quality features across the backend and frontend stack Identifying and addressing performance bottlenecks in critical areas … professional software development experience, with strong expertise in TypeScript Proven experience building and maintaining production-grade web applications Strong backend engineering experience, including API design, system architecture, and distributed systems concepts Solid understanding of relational databases and advanced SQL Strong focus on software quality, testing, security, and maintainability ...

Contract AI Software Engineer - DV Cleared

Hiring Organisation
NSD
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£450 - £650 per day
Experience with AWS or Azure Familiarity with Docker and Kubernetes Experience working in secure or highly regulated environments Strong understanding of software architecture and API design IT WOULD BE NICE FOR THE AI SOFTWARE ENGINEER TO HAVE. Experience with RAG pipelines and vector databases Knowledge of MLOps tooling ...