1 to 25 of 37 Remote/Hybrid Permanent API Design Jobs

Senior Azure AI Platform Engineer | Azure AI Foundry | C# | APIs

Hiring Organisation
Intelligent Talent Solutions Ltd
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
delivering secure, scalable and reusable AI capabilities that can be consumed across digital products, automation platforms, Copilot solutions and wider business services. Key Responsibilities Design and build AI-enabled services using Azure AI Foundry and Azure OpenAI Design, develop and support secure REST APIs using C# and .NET … Build and manage Azure Functions and serverless services Develop and support MCP Servers and AI integration services Design event-driven architectures using Azure Service Bus Manage APIs through Azure API Management Expose AI capabilities through secure, auditable APIs and reusable services Support Copilot Studio and AI-enabled workflows ...

Backend Software Engineer - SaaS - Remote (Northern Ireland) JBLE1 NI

Hiring Organisation
VANRATH
Location
Belfast, UK
genuine impact on technical direction, engineering standards, and long-term platform strategy. As a Senior Backend Engineer, you will take ownership of backend architecture, API design, infrastructure, and platform reliability. You will work closely with developers across the business to improve scalability, security, performance, and operational excellence while … experience working with AWS cloud infrastructure including services such as Lambda, RDS, S3, and IAM * Strong understanding of application security, authentication, authorisation, and secure API design * Experience designing, optimising, and scaling relational databases (PostgreSQL preferred) * Experience with CI/CD pipelines, DevOps practices, and production environments * Comfortable leading ...

Junior C++ Developer - Manchester / Hybrid

Hiring Organisation
Noir
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£25,000 - £35,000 per annum
Junior C++ Developer - Manchester/Hybrid (Junior C++ Developer, C++ Developer, Software Developer, C++, Qt/QML, API Design, Agile DevOps, Low latency, C4/UML, Junior C++ Developer, C++ Developer, Software Developer) Our client is a global innovator and world leader with one of the most recognisable … Junior C++ Developers with some experience using C++ 20 or later. Any experience with the Qt framework would be helpful, as would experience in API Design (Rest, GraphQL and events), Application monitoring and high performance and low latency engineering. A DevOps mindset and any Agile knowledge would also ...

Sr. Software Engineer, Infrastructure

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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 ...

MuleSoft Integration Architect

Hiring Organisation
CGI
Location
United Kingdom
Employment Type
Full Time
technology ecosystems through scalable integration solutions that enable innovation, agility, and long-term business value. As a Senior Integration Architect, you'll lead the design and delivery of enterprise-wide integration strategies that support critical digital transformation programmes and enhance connectivity across platforms, applications, and services. Working alongside engineering … responsibilities In this role, you will lead the architecture and delivery of enterprise integration solutions across complex business and technology environments. You'll design scalable API-led and event-driven architectures that enable secure, resilient, and high-performance data exchange between enterprise systems, cloud platforms, and third-party ...

Lead Software Developer (m/f/d)

Hiring Organisation
Atos Technologies Austria GmbH
Location
Wien, Austria
Employment Type
Permanent
Salary
EUR Annual
feature delivery, and raise quality - while establishing the guardrails that keep AI-generated code correct, reviewed, and production-safe. High-Availability Architecture: Lead the design and evolution of a horizontally scalable, cloud-native services architecture optimized for 99.999% uptime and zero single points of failure. Real-Time Distributed Computing … Design and implement resilient, event-driven systems built on high-throughput distributed messaging (e.g., Kafka, RabbitMQ) to handle concurrent data and media streams. Event-Sourced State Management: Architect event-sourced services and CQRS-style read/write models with deterministic, replayable state - ensuring auditability and consistent recovery across nodes. ...

Senior Developer

Hiring Organisation
Reed.co.uk
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 per annum
venture backed by the strength and stability of an established business. Key Responsibilities End-to-end development of high-quality, scalable SaaS platforms from design through deployment and maintenance. Architect and implement robust backend services primarily using Python and PostgreSQL. Develop and maintain responsive, performant front-end applications with … Provide technical mentorship and leadership to development teams, fostering best practices in coding, testing, and deployment. Participate in code reviews, architecture discussions, and system design decisions. Troubleshoot and resolve complex technical issues across the full stack. Ensure software security, scalability, and performance are maintained at all times. Keep abreast ...

AWS Solution Architect (Senior Manager)

Hiring Organisation
Anson Mccade
Location
City of London, London, United Kingdom
Employment Type
Permanent
high-performing cloud practice. This is an opportunity to work at the forefront of cloud transformation, partnering with tier-one clients across industries to design and deliver innovative, scalable, and secure AWS solutions. Youll play a pivotal role in shaping enterprise cloud strategies while leading complex transformation programmes. … strategy Certifications & Education AWS Certification (Associate or Professional e.g. Solutions Architect, DevOps Engineer) Degree in Computer Science, Engineering, or related discipline Technical Expertise Architecture & Design Translating business needs into scalable cloud architectures Cost optimisation and cloud best practices Data & AI Experience with data platforms, analytics, and AI/ ...

Senior Systems Engineer Optical Ground System Operations

Hiring Organisation
Archangel Lightworks Ltd
Location
Oxford, Oxfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
complex technologies, wed love to hear from you! Role Overview As a Systems Engineer, you will play a critical role in supporting the specification, design, integration, and test of cloud-based software and interfaces that enable seamless operations and communications for our Optical Ground Stations. This role involves working … systems engineering, and operational workflows. Key Responsibilities Define and document system-level requirements for cloud-based software supporting the operation of Optical Ground Stations. Design scalable, secure, and reliable system architectures and manage APIs, ensuring scalability, security, and operational reliability. Serve as the primary technical point of contact ...

Software Engineer

Hiring Organisation
Sanderson Government and Defence
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
Java, Python, React , and MongoDB to join a high-performing engineering team . You will work across the full development lifecycle, contributing to the design, build, and delivery of high-quality software solutions. The role requires strong technical expertise, proactive problem-solving, and the ability to collaborate effectively … multidisciplinary teams. Key Responsibilities Design, develop, test, and deploy high-quality software solutions using Java , Python , React , and MongoDB . Participate in solution design, estimation, and technical decision-making. Develop reusable components and shared services. Work within Agile teams to support sprint planning, refinement, and retrospectives. Ensure code ...

Senior Backend Developer JBLE1 NI

Hiring Organisation
Ocho
Location
Belfast, UK
people who bring something new to the team, not just technical skills. What You'll Be Doing As a Senior Backend Developer, you will design, build, and optimise high-quality server-side applications and APIs that power complex digital experiences. Working closely with front-end engineers, DevOps specialists, cloud … building scalable APIs and microservices Hands-on experience with cloud platforms (AWS, Azure, or GCP), including serverless compute Solid understanding of authentication, authorisation, and API security best practices Strong problem-solving skills and familiarity with cloud-native development patterns Desirable Experience with headless e-commerce platforms such as commercetools ...

Principal Artificial Intelligence (AI) Platform Engineer/Architect

Hiring Organisation
WTW
Location
Greater London, United Kingdom
Employment Type
Full Time
their development workflows safely and seamlessly. Acting as both architect and hands-on builder, you will articulate our vision for AI-accelerated development practices, design platforms that embed AI at every phase of the SDLC, and champion adoption across our organization. We are seeking a highly skilled engineer … model) The Role Define and evolve the vision for AI-enabled SDLC practices, translating business and technical strategy into concrete platform capabilities and processes Design and implement scalable AI platform infrastructure (SDKs, frameworks, deployment pipelines) that enables rapid, safe integration of AI into all phases of development—from coding ...

Integration Developer FTC

Hiring Organisation
itecopeople
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
using modern cloud-native and streaming technologies. Key Responsibilities Develop event-driven integrations and backend services Build connectors, event-processing services, and data pipelines Design scalable integration patterns, schemas, and event flows Develop CDC pipelines and resilient messaging solutions Improve observability through logging, metrics, and tracing Deploy containerised services … Grafana Required Skills Strong software engineering background Experience building integration or event-driven platforms Kafka, Redpanda, or similar streaming technologies Enterprise system integrations and API design Agile development experience Strong communication and collaboration skills Desirable Skills Go and/or Python CDC pipeline development Azure cloud experience Observability ...

Technical Product Manager

Hiring Organisation
WTW
Location
Surrey, United Kingdom
Employment Type
Full Time
vision. Highly Desirable: • 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 ...

Senior Software Engineer Java

Hiring Organisation
Get2Talent
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
scalable cloud-native platforms, modern web applications, APIs, and digital services that support meaningful and high-impact programmes. What Youll Be Doing Leading the design, development, and delivery of secure full-stack applications using Java, React, and modern web technologies Building scalable back-end services, APIs, and distributed systems … Java and modern front-end frameworks such as React Previous experience operating at Senior, Lead, or Principal Engineer level Strong understanding of software architecture, API design, and scalable distributed systems Experience building cloud-native applications and working within AWS, Azure, or similar cloud environments Strong knowledge of DevOps ...

Full Stack Developer Java

Hiring Organisation
Get2Talent
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
scalable cloud-native platforms, modern web applications, APIs, and digital services that support meaningful and high-impact programmes. What Youll Be Doing Leading the design, development, and delivery of secure full-stack applications using Java, React, and modern web technologies Building scalable back-end services, APIs, and distributed systems … Java and modern front-end frameworks such as React Previous experience operating at Senior, Lead, or Principal Engineer level Strong understanding of software architecture, API design, and scalable distributed systems Experience building cloud-native applications and working within AWS, Azure, or similar cloud environments Strong knowledge of DevOps ...

Java Full Stack Developer

Hiring Organisation
Get2Talent
Location
Cardiff, South Glamorgan, Wales, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
scalable cloud-native platforms, modern web applications, APIs, and digital services that support meaningful and high-impact programmes. What Youll Be Doing Leading the design, development, and delivery of secure full-stack applications using Java, React, and modern web technologies Building scalable back-end services, APIs, and distributed systems … Java and modern front-end frameworks such as React Previous experience operating at Senior, Lead, or Principal Engineer level Strong understanding of software architecture, API design, and scalable distributed systems Experience building cloud-native applications and working within AWS, Azure, or similar cloud environments Strong knowledge of DevOps ...

Java Full Stack Developer

Hiring Organisation
Get2Talent
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
scalable cloud-native platforms, modern web applications, APIs, and digital services that support meaningful and high-impact programmes. What Youll Be Doing Leading the design, development, and delivery of secure full-stack applications using Java, React, and modern web technologies Building scalable back-end services, APIs, and distributed systems … Java and modern front-end frameworks such as React Previous experience operating at Senior, Lead, or Principal Engineer level Strong understanding of software architecture, API design, and scalable distributed systems Experience building cloud-native applications and working within AWS, Azure, or similar cloud environments Strong knowledge of DevOps ...

Lead Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Warrington, Cheshire, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
manual test strategies Documenting architectural decisions (ADRs) and maintaining clear technical communication Tech Stack & Experience Core technologies: .NET 10/ASP.NET Core Web API Entity Framework Core with Azure SQL .NET MAUI (offline-first mobile design) Microsoft Azure (App Services, Azure SQL, Blob Storage, Key Vault, Application Insights … They're Looking For 7+ years' commercial software development experience At least 2 years in a leadership position Strong expertise in modern .NET and API design Proven Angular experience (v15+) Hands-on Azure architecture and deployment experience Strong understanding of CI/CD and enterprise DevOps practices Experience ...

Digital Senior Full Stack Engineer

Hiring Organisation
Leeds Building Society
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
make a difference You'll take technical ownership of customer-facing solutions, working across React/TypeScript and .NET/C# to design, build, test and run reliable, secure and scalable services. You'll lead complex technical delivery, champion modern engineering practices and help shape high-quality solutions through … testing. CI/CD craftsmanship (Azure DevOps/GitHub Actions or similar) with quality gates and environment parity. Proven record designing scalable, resilient systems; API design/versioning; clean architecture and DDD experience. Track record mentoring engineers and leading code/design reviews; uplifting test automation ...

Manager - Lead AI Engineer

Hiring Organisation
Anson Mccade
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
building and knowledge-sharing initiatives Skills & Experience Required Significant senior backend development experience with strong Python proficiency (async programming, concurrency, multithreading) Expertise in RESTful API design, OpenAPI/Swagger documentation and API lifecycle best practices Hands-on experience with ML libraries: PyTorch, PySpark, scikit-learn, Hugging Face … machine learning, cloud computing or data engineering highly advantageous Professional accounting qualification desirable but not required Nice to Have Experience with Microsoft Graph API Background in audit, financial services or regulated industry technology What's on Offer A competitive salary and benefits package, flexible hybrid working across 20+ ...

Full Stack Developer

Hiring Organisation
Ashdown Group
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £62,000 per annum
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/ ...

Technical Lead

Hiring Organisation
Searchability (UK) Ltd
Location
Liverpool, Merseyside, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
influence technical strategy Work within a senior, AI-first engineering environment KEY POINTS Senior technical leadership role with significant architectural 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 and AI adoption … 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 ...

Backend Development Lead

Hiring Organisation
Oyster Consultant
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
evolve our stack and make constant improvements. Required Skills/Experience Strong C# development experience Experience with both .NET Core and .NET Web API Experience of building Microservices in .Net Core Experience using Message Based Architectures Experience using both SQL & NoSQL technologies Experience of API design Cloud ...

Back-End Development Lead

Hiring Organisation
Oyster Consultant
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
evolve our stack and make constant improvements. Required Skills/Experience Strong C# development experience Experience with both .NET Core and .NET Web API Experience of building Microservices in .Net Core Experience using Message Based Architectures Experience using both SQL & NoSQL technologies Experience of API design Cloud ...