26 software engineer jobs found in London

Software Engineer — HealthTech & AI 6 month contract, Outside IR35 Remote - once a quarter onsite in Dublin €380 - €400 per day We’re working with a HealthTech company who are looking for a capable, self-driven mid-to-senior Software Engineer to help build and evolve healthcare technology products They are building software that supports clinical workflows and healthcare communications. Its existing products help healthcare organisations manage and streamline clinical referral and order-communication processes, with a particular focus on diagnostic workflows. The company is also developing AI-driven products for clinical workflows, using technologies such as LLMs, AI APIs and workflow orchestration to automate or improve parts of clinical processes You’ll work across established clinical communications products while also contributing to a growing portfolio of AI-driven solutions for clinical workflows. This is a hands-on, generalist role where you’ll take...

Data & Software Engineer £550- £590 per day | Outside IR35 | Fully Remote | 6-Month Contract THE COMPANY A leading digital business operating within a highly data-driven online environment is seeking a Data & Software Engineer to support the development of critical commercial and operational data platforms. This organisation processes large volumes of transactional, revenue, and user performance data, using these insights to drive key business decisions. As part of a growing engineering function, they are investing heavily in their data ecosystem and require an experienced contractor to support several high-priority initiatives. Candidates from online gaming, iGaming, betting, gambling, esports, or other high-volume digital platforms are particularly encouraged to apply. THE ROLE As a Data & Software Engineer, you 'll work across backend engineering, data processing, and systems integration, helping to enhance platforms that provide...

Senior Software Engineer - Outside IR35 - Contract (Energy) About the role We are looking for a Senior Software Engineer (ideally with some Data Engineering experience) to join our client team in the energy trading sector. End date is not certain, but likely to be December 2026 or early Q1 2027. We are looking for experience in the following technologies: Microsoft Azure ecosystem Understanding of networking & security options in Microsoft Azure Infrastructure-as-code (preferably Bicep) Python Experience in the below would also be beneficial: Azure DevOps (pipelines) SQL We generally spend 2 days per week on-site with the client in central London (Monday & Thursday). £500-600 per day outside IR35 Start date: 10/08/2026 End date: December 2026 or early Q1 2027 About Softwire Softwire is a leading UK technology and strategy consultancy. From enterprise to government, we help visionary organisations turn...

AWS Platform Engineer (Contract) AWS Node.js Python Terraform SNS / SQS Event-Driven Architecture 1 Day Per Week Hybrid into Central London £550 Per Day Outside IR35 Method Resourcing has partnered with a well-known technology organisation embarking on a major cloud modernisation programme. They are looking to bring in an AWS Platform Engineer to support the transformation of a large application estate while improving resilience, scalability, and recovery capabilities across the business. This is not a traditional DevOps role. They are specifically looking for a software engineer with strong cloud platform experience who can design and build modern, cloud-native solutions. The role: You will be joining a large transformation programme focused on modernising legacy applications and migrating them towards a cloud-native AWS environment. The programme is centred around improving resilience, recovery capabilities, and long-term platform sustainability. You'll work...

AWS Platform Engineer (Contract) | AWS | Node.js | Python | Terraform | SNS/SQS | Event-Driven Architecture | 1 Day Per Week Hybrid into Central London | £550 Per Day Outside IR35 Method Resourcing has partnered with a well-known technology organisation embarking on a major cloud modernisation programme. They are looking to bring in an AWS Platform Engineer to support the transformation of a large application estate while improving resilience, scalability, and recovery capabilities across the business. This is not a traditional DevOps role. They are specifically looking for a software engineer with strong cloud platform experience who can design and build modern, cloud-native solutions. The role: You will be joining a large transformation programme focused on modernising Legacy applications and migrating them towards a cloud-native AWS environment. The programme is centred around improving resilience, recovery capabilities, and long-term platform sustainability. You'll...

AWS Platform Engineer (Contract) | AWS | Node.js | Python | Terraform | SNS / SQS | Event-Driven Architecture | 1 Day Per Week Hybrid into Central London | £550 Per Day Outside IR35 Method Resourcing has partnered with a well-known technology organisation embarking on a major cloud modernisation programme. They are looking to bring in an AWS Platform Engineer to support the transformation of a large application estate while improving resilience, scalability, and recovery capabilities across the business. This is not a traditional DevOps role. They are specifically looking for a software engineer with strong cloud platform experience who can design and build modern, cloud-native solutions. The role: You will be joining a large transformation programme focused on modernising legacy applications and migrating them towards a cloud-native AWS environment. The programme is centred around improving resilience, recovery capabilities, and long-term platform...

Senior / Lead Software Engineer (Java) Outside IR35 Hybrid (2 Days Onsite in central London) Our client urgently seeks an experienced Senior Software Engineer with extensive Java expertise to take a lead role in the design,development and support of scalable, cloud-native backend applications. Working within an Agile, DevOps environment, you'll help build high-performance microservices, APIs and event-driven solutions powering a next-generation platform used at significant scale. This is an exciting greenfield programme, working alongside engineers, operations and product teams to deliver software that supports critical business operations. Essential Experience Extensive commercial experience developing enterprise applications with Java and Spring Boot Proven track record designing and delivering high-throughput, distributed microservices at scale Strong experience building event-driven architectures using Kafka Expertise with PostgreSQL and Couchbase in...

Back End Developer (Node.js) Senior Software Engineer Pricing & Inventory (Node/TypeScript) Contract: 6 months initially Rate: Up to £420 per day, Outside IR35 Location: Can be worked fully remote We re supporting a high-traffic global E-commerce platform in its search for a Senior Software Engineer to improve its pricing, inventory and availability systems. This is a hands-on role focused on building reliable, scalable services that process millions of customer searches across multiple international markets. What you'll be working on Building and improving pricing, inventory and availability services Developing quote-caching and data freshness strategies Designing resilient APIs and third-party integrations Reducing latency and improving platform performance Balancing pricing accuracy with cache efficiency and infrastructure cost Improving monitoring, tracing and production observability Owning solutions from investigation through to...

Senior Data Engineer London | Fleixble, hybrid working pattern | Outside IR35 | 12 month engagement We're looking for a Senior Data Engineer who understands that great data engineering is about building reliable, scalable data products, not simply moving data from A to B. This is an opportunity to shape modern data platforms, solve complex engineering challenges, and deliver data solutions that create genuine business value. You'll join an organisation investing heavily in its data capabilities, working alongside architects, analysts, data scientists, and engineering teams to build robust, production-grade data platforms that support analytics, AI, and operational decision-making. Why join Work on large-scale data and cloud transformation initiatives Influence architecture, engineering standards, and platform strategy Deliver solutions that have measurable business impact Join a collaborative team of experienced data professionals...

Service Desk Support Analyst - 12 Month Contract - Hybrid in City Of London Contract: Initial 12 months (Outside IR35) Rate: £150 per day Location: Hybrid - City of London (Farringdon), 2-3 days on-site per week The Role A well-established American Managed Service Provider is looking for an experienced Infrastructure & Support Engineer to strengthen their internal IT team, supporting operations across the UK and Ireland. The end customer is a US-headquartered organisation currently expanding into the UK, Ireland and wider Europe, and this role has been created to provide additional hands-on support to the team through that growth. This is a broad, "out and out" support role covering networking, data centre infrastructure, systems administration and end-user support - ideal for a versatile engineer who enjoys variety and is comfortable working across the full IT stack. Key Responsibilities Providing IT support across networking, data centres and wider...

Data Engineer – Python | GCP | KAFKA | SC Clearance - £600 OUTSIDE IR35 - Remote I’m looking for an experienced Data Engineer to join a greenfield technology programme building a highly scalable data platform supporting advanced AI capabilities and maritime surveillance across the North Atlantic . You’ll join a highly autonomous engineering team taking an existing proven prototype through to a production-grade platform , ingesting and processing large volumes of complex, real-world data. 💷 Up to £600 per day, Outside IR35 💻 FULLY REMOTE 📈 Initial 6 months - scope for extension / perm ‼️ SC clearance required for this role - UK APPLICANTS ONLY The role: Design and productionise scalable, high-throughput distributed data pipelines Onboard and normalise diverse data sources into consistent, queryable schemas Build the core data foundations used by AI/ML models and agents Develop a knowledge layer allowing AI agents to read and write data...

Automation Test Engineer - eDV/UKIC Clearance Required If you do not know what eDV/UKIC is please do not apply. 12 month outside IR35 contract- 650-700 p/d. Based in London on site 5 days a week. SR2 is partnering with an exciting client looking for an Automation Test Engineer to play a key role in building quality, security and confidence into their software delivery life cycle. You'll work alongside Software Developers, DevSecOps Engineers and QA specialists to design and maintain automated testing that is Embedded directly into CI/CD pipelines. This is a hands-on role for someone who enjoys building robust automation frameworks, testing modern containerised applications and shifting quality and security left. What you'll be doing Design, build and maintain automated unit, API, integration, functional and end-to-end test suites Develop reusable and scalable test automation frameworks and libraries Test Python 3.13+ , microservices and containerised applications...

Contract Test Analyst We're looking for an experienced Contract Test Analyst/Test Engineer to join our team and play a key role in delivering high-quality, reliable software across a range of applications and services. This role would suit a hands-on tester with strong API testing and SQL/database experience, who is comfortable working in an Agile environment and collaborating closely with developers, analysts and other QA professionals. Duration - 3 to 6 months Remote working Outside IR35 Start Date - Immediate start Key Responsibilities Design and execute comprehensive test scenarios and test cases across web, Back End and integration services. Perform extensive API testing, validating requests, responses, data, authentication and error handling. Use tools such as Postman, Swagger/OpenAPI or similar to test RESTful APIs. Write and execute SQL queries to validate data, investigate defects and verify end-to-end data flows. Perform functional, integration,...

AI DevOps Engineer - Azure AI Foundry Contract Length: 6 months Location: Remote with ad-hoc travel Rate: Up to £600 per day IR35 Status: Outside IR35 Start Date: ASAP About the Client A leading global insurance organisation is investing heavily in AI and is building new AI products and services across the business. They are looking for an experienced DevOps Engineer to help establish the engineering foundations needed to deploy, automate, govern, and operate these AI solutions at enterprise scale. Role Overview This is not a traditional DevOps role. You will sit at the intersection of DevOps, software development and AI, building the CI/CD, automation, Infrastructure-as-Code and governance capabilities needed to take AI solutions from development into secure, repeatable production environments. You will work closely with AI, DevOps and Engineering teams, with a particular focus on integrating Azure AI Foundry into existing enterprise engineering...

Contract Test Analyst We're looking for an experienced Contract Test Analyst / Test Engineer to join our team and play a key role in delivering high-quality, reliable software across a range of applications and services. This role would suit a hands-on tester with strong API testing and SQL/database experience, who is comfortable working in an Agile environment and collaborating closely with developers, analysts and other QA professionals. Duration - 3 to 6 months Remote working Outside IR35 Start Date - Immediate start Key Responsibilities Design and execute comprehensive test scenarios and test cases across web, backend and integration services. Perform extensive API testing, validating requests, responses, data, authentication and error handling. Use tools such as Postman, Swagger/OpenAPI or similar to test RESTful APIs. Write and execute SQL queries to validate data, investigate defects and verify end-to-end data...

Lead Data Platform Engineer - Outside IR35 - 1 day pw London (rest remote) - 3 months Initially We are currently recruiting for a Lead Data Platform Engineer to join a programme focused on data platforms, analytics engineering, and modern Lakehouse solutions. The client is looking for a hands-on engineering professional with strong Microsoft Fabric, Spark, PySpark and SparkSQL expertise, capable of designing, building and supporting enterprise-scale data platforms. Start Date: ASAP Duration: 3 months Initially Pay Rate: Competitive IR35 Status: Outside IR35 Location: London (1 day per week onsite, remainder remote) The Role: The core requirement is strong Lakehouse expertise, particularly Spark, PySpark, and SparkSQL. Hands-on experience in low-code is essential. Data & Analytics Expertise: Particularly relevant to your current Data Platform background: Data architecture (Lakehouse, Medallion, Kimball, 3NF). Data ingestion and processing. Data...

AWS Engineer (6 Month Contract) Location: Remote Contract: 6 Months Rate: Competitive Market Rate Outside IR35 Why Apply? We're supporting a boutique technology consultancy known for solving complex technology problems and operating with lightning fast efficiency. The project you'll be getting stuck into involves a healthcare marketplace designed to improve access to healthcare for millions of British nationals and enables people to connect with healthcare services more quickly. You'll play a key role in designing, building and supporting the AWS infrastructure behind a modern, scalable platform, working across cloud, Kubernetes and serverless architecture AWS Engineer Responsibilities Design, build and maintain scalable AWS cloud infrastructure supporting a high-availability healthtech marketplace. Develop and maintain serverless architectures using AWS services. Work with Kubernetes to deploy, manage and scale containerised workloads. Implement...

AWS Engineer (6 Month Contract) Location: Remote Contract: 6 months Rate: Competitive Market Rate Outside IR35 Why Apply? We're supporting a boutique technology consultancy known for solving complex technology problems and operating with lightning fast efficiency. The project you'll be getting stuck into involves a healthcare marketplace designed to improve access to healthcare for millions of British nationals and enables people to connect with healthcare services more quickly. You'll play a key role in designing, building and supporting the AWS infrastructure behind a modern, scalable platform, working across cloud, Kubernetes and serverless architecture AWS Engineer Responsibilities Design, build and maintain scalable AWS cloud infrastructure supporting a high-availability healthtech marketplace. Develop and maintain serverless architectures using AWS services. Work with Kubernetes to deploy, manage and scale containerised workloads. Implement...

Senior DevOps & Platform Automation Engineer - Outside IR35 Contract - Hybrid - London Driving Agentic AI, Ephemeral Infrastructure & Next-Generation Delivery We're seeking an experienced DevOps and Platform Automation professional to play a key role in shaping the future of engineering delivery within a rapidly evolving technology function. Working closely with the DevOps & Automation leadership team, you'll help accelerate a strategic transformation focused on intelligent automation, cloud-native engineering, self-service platforms and ephemeral environments. This role is ideal for someone who thrives on innovation, enjoys solving complex challenges at scale, and wants to influence how modern software delivery is implemented across an enterprise organisation. You'll be instrumental in advancing capabilities across platform engineering, deployment automation, observability, AI-driven operations and Infrastructure as Code, helping move the organisation toward...

Forward Deployed Engineer | London | Commodities Trading | Outside IR35 We're partnering with a global commodities trading firm looking for a Forward Deployed Engineer to help deliver next-generation AI solutions across the business. This is a hands-on engineering role sitting at the intersection of AI, software engineering and business transformation. You'll work directly with stakeholders to design, build and deploy AI-powered applications, agentic workflows and intelligent automation solutions that create measurable business impact. The role will involve taking AI prototypes from concept through to production, building applications on top of enterprise data platforms, developing LLM-powered workflows, implementing RAG solutions, and creating tools that improve decision-making and operational efficiency across the business. Key responsibilities: Design and deploy AI-powered applications, LLM workflows and agentic AI solutions. Build production-grade...