23 backend engineer jobs found

Outside IR35 | £500-£525/day | 6 Months Remote - UK We're looking for experienced Backend Engineers to support the development and scaling of Back End platforms powering a range of digital products and internal systems. This is a hands-on contract role suited to senior engineers who enjoy technical ownership, improving system performance, and contributing to architectural decisions while remaining actively involved in delivery. The Role Develop Back End services using Node.js and TypeScript Build and enhance APIs and system integrations Improve scalability, reliability and overall platform performance Contribute to system design and technical decision-making Collaborate closely with engineering and product teams Provide technical guidance where required Technology Environment Node.js TypeScript/JavaScript APIs and microservices Cloud platforms (AWS, GCP or Azure) Distributed Back End systems Experience Required Strong commercial Back End engineering...

Lead Backend Engineer - HIRING ASAP Start Date: ASAP Duration: 6 Months Location: Remote Rate: £500 - £600 per day, outside IR35 Summary This position is suited for Senior folks, who are motivated, proactive, not afraid to take leadership and are confident to make decisions but are also good team players and have a very good technical skill. Tech stack you will be working in is NodeJS + PSQL + AWS. Responsibilities NextGen and MDM systems, which are the main engines that are powering our clients' websites. You should take a tech lead on these services and be able to mentor others, work with EM/Delivery/Product etc. Good tech skills and design principles are probably key here. Key Skills Experience within NodeJS + PSQL + AWS. iGaming, or Casino Betting industry experience preferred.

Senior NodeJS Engineer - HIRING ASAP Positions Available: 2 Start Date: ASAP Duration: 6 months Location: Remote (Can be based anywhere in Europe) Rate: £500 - £600 per day, outside IR35 Summary These positions are suited for Senior folks, who are motivated, proactive, not afraid to take leadership and are confident to make decisions but are also good team players and have a very good technical skill. Tech stack you will be working in is NodeJS + PSQL + AWS. Responsibilities for Role #1 CDM + HubSpot - extending our clients' Commercial Data Manager including tech improvements and new features, but also taking over maintenance and lead on HubSpot that was built for them by an external agency, however now they're looking into continue expanding it and maintaining it in house. The role will be split 70% CDM and 30% HubSpot, with this person being the key developer looking after HS, alongside with their architect, so for this role previous experience with HubSpot will be...

Staff Engineer- Backend JavaScript (Node.js/TypeScript) Contract - Outside IR35 Location: London/Hybrid (once every two weeks) Contract: Outside IR35 Duration: 6 months initial (extension likely) Our client, an innovative and forward-thinking technology business, is looking for a Backend JavaScript Staff Engineer to join a high-performing engineering team. This is a fantastic opportunity for a highly experienced, hands-on Back End engineer who enjoys solving complex technical problems, building scalable systems, and providing technical leadership across teams. You will play a key role in shaping Back End architecture, improving platform reliability and performance, and raising engineering standards while remaining deeply involved in hands-on delivery. The Role As a Staff Engineer, you will work across multiple teams to drive technical direction and deliver robust Back End services. You'll lead by example through high-quality code, architectural guidance, and...

Rate: £600/day Outside IR35 Location: Fully Remote (UK) Duration: 12 months Role Overview We are seeking a Senior Rust Engineer to lead the evolution of our Back End systems. You will develop tooling to optimise the worker acquisition funnel, remove manual bottlenecks, and reduce operational costs. This includes implementing skill verification systems, compliance automation, and engineering the migration away from Legacy Ruby to modern services in Java, Python, and Rust. Your leadership will be pivotal in architectural planning, cross-team collaboration, and the successful decommissioning of the Ruby monolith without service disruption. Key Responsibilities * Design and build large-scale Back End systems that streamline the worker acquisition process and reduce Cost per Hire. * Lead engineering initiatives and provide technical guidance across Java, Python, Rust, and Ruby technologies. * Drive system migrations from monolithic architecture to service-based...

We're partnering with a fast-growing sports/entertainment business looking to hire a Senior Backend Engineer on a 6-month contract (outside IR35), with potential to convert to permanent (£95k). This is a hands-on tech lead role with ownership of core platform systems powering multiple websites and internal services. The Role You'll take full technical ownership of the NextGen CMS and Master Data (MDM) systems, designing, developing, and mentoring a small team of engineers. This role is perfect for someone who thrives in complex, high-scale environments and wants real impact from day one. Key Responsibilities: Lead development across CMS and MDM systems Maintain and expand complex backend systems (not standard CMS) Mentor engineers and set engineering standards/patterns Drive architecture, integrations, and system scalability Work closely with stakeholders to deliver features and improvements Team Environment: 5 Backend, 3 Frontend engineers, 1 Delivery...

We 're partnering with a fast-growing sports/entertainment business looking to hire a Senior Backend Engineer on a 6-month contract (outside IR35), with potential to convert to permanent ( £95k). This is a hands-on tech lead role with ownership of core platform systems powering multiple websites and internal services. The Role You 'll take full technical ownership of the NextGen CMS and Master Data (MDM) systems, designing, developing, and mentoring a small team of engineers. This role is perfect for someone who thrives in complex, high-scale environments and wants real impact from day one. Key Responsibilities: Lead development across CMS and MDM systems Maintain and expand complex backend systems (not standard CMS) Mentor engineers and set engineering standards/patterns Drive architecture, integrations, and system scalability Work closely with stakeholders to deliver features and improvements Team Environment: 5 Backend, 3...

🚀 Senior Backend Engineer (Python) – AI Platform | High-Growth FinTech - £500 Outside IR35 We’re partnering with a rapidly scaling AI company transforming global debt markets. Their platform centralises proprietary credit data, deep analysis and high-value workflows for 300+ leading financial institutions worldwide. With strong product-market fit and rapid international expansion, they’re hiring a Senior Backend (Python) Engineer to take technical ownership across high-impact projects. What You’ll Do Lead system design and deliver scalable backend services Build and evolve APIs, data processing pipelines and automation Mentor engineers and run code reviews Collaborate closely with Product and cross-functional domain experts Continuously improve performance, quality and developer experience What We’re Looking For Strong Python (Flask moving to FastAPI with Typing) backend experience Proven experience building APIs within service-oriented architectures...

Mindera are currently looking for a Software Deployment Engineer to deliver, configure, test, and roll out software and device solutions across multiple environments. You’ll work closely with software engineers, product teams, and platform specialists to ensure seamless deployments that support millions of customers and thousands of colleagues. This role is perfect for someone who enjoys hands-on deployment, automation, configuration, testing, and troubleshooting across a wide technology landscape. This is a hybrid position where you will be expected to be onsite in Bracknell 3 days per week. Requirements Deployment & Configuration (Primary Focus) Deploy application releases across Dev, Test, UAT, Pre-Prod, and Production environments. Configure applications, services, and devices according to environment needs. Automate deployment activities through CI/CD pipelines and scripting. Manage deployment schedules, releases, and environment readiness. Validate...

Mindera are currently looking for a Software Deployment Engineer to deliver, configure, test, and roll out software and device solutions across multiple environments. You'll work closely with software engineers, product teams, and platform specialists to ensure seamless deployments that support millions of customers and thousands of colleagues. This role is perfect for someone who enjoys hands-on deployment, automation, configuration, testing, and troubleshooting across a wide technology landscape. This is a hybrid position where you will be expected to be onsite in Bracknell 3 days per week. Requirements Deployment & Configuration (Primary Focus) Deploy application releases across Dev, Test, UAT, Pre-Prod, and Production environments Configure applications, services, and devices according to environment needs Automate deployment activities through CI/CD pipelines and scripting Manage deployment schedules, releases, and environment readiness...

Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days We’re supporting one of the UK’s largest consumer digital platforms as they scale their engineering capability across several high-traffic products used by millions of customers. They’re looking for Senior / Lead Full-Stack TypeScript Engineers with deep GraphQL expertise to help evolve and scale their API architecture. This role sits within a high-performing product engineering team responsible for building and maintaining critical services that power modern web and mobile experiences. You’ll play a key role in designing and evolving GraphQL schemas, improving API architecture, and delivering performant full-stack applications within a mature engineering environment. This is an opportunity to work on complex distributed systems at significant scale, collaborating...

We are seeking a passionate Software Engineering Manager who will provide technical expertise and operate with excellence. Being creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams - designing, building, releasing, and maintaining products. You will play a key role in driving our ambition to create a best-in-class software engineering team, environment, and culture. This is an initial 6 month contract (outside IR35) that requires you to work on client site 3 days a week in London, Paddington. Requirements Your key accountabilities will include: Team Management: Build, mentor, and manage a high-performing software engineering team. Foster a culture of collaboration, innovation, and continuous improvement within the team. Facilitate communication and collaboration among team members. Ensure budgets, people and resource allocation, and workload, balance across projects. Agile...

Senior Full-Stack Software Engineer (AI/ML Specialist) Contract role, 12 months duration Rate- £500/day Outside ir35, fully work from Home The role is with one of our Global Clients looking for a Senior Full-Stack Software Engineer with deep expertise in AI-powered application development to join their team. This is a senior individual contributor role with opportunities to work on complex, high-impact AI projects across Azure cloud Infrastructure, and AI/ML platforms. Responsibilities: - Design and build scalable, enterprise-grade full-stack multi-agent , agentic AI applications using modern frameworks including Python, Next.js, TypeScript and Node.js. Architect and integrate AI/ML capabilities including RAG pipelines, AI agent orchestration, and LLM-powered features using OpenAI, Azure OpenAI, and LangChain/LangGraph Lead technical design decisions across API design, microservices architectures, translating complex business requirements into clean,...

Databricks Data Engineer £500 - £550 per day Outside IR35 We 're partnering with a leading online retail company that 's transforming the way data and real-time intelligence shape customer experiences. Their mission is to harness cutting-edge data and streaming technologies to drive smarter decisions, improve efficiency, and create personalised journeys for millions of shoppers worldwide. The Role As a Senior Data Engineer, you 'll play a key role in developing and optimising the backbone of the company 's data platform. You 'll be responsible for building and maintaining large-scale, real-time data pipelines that power analytics, machine learning, and operational systems across the business. You 'll collaborate with software engineers, data scientists, and analytics teams to ensure the platform delivers reliable, high-quality, and compliant data at scale. This is a hands-on engineering role that blends software craftsmanship with data architecture...

Senior Full-Stack Software Engineer (AI/ML Specialist) Contract role, 12 months duration Rate- £500/day Outside ir35, fully work from Home The role is with one of our Global Clients looking for a Senior Full-Stack Software Engineer with deep expertise in AI-powered application development to join their team. This is a senior individual contributor role with opportunities to work on complex, high-impact AI projects across Azure cloud infrastructure, and AI/ML platforms. Responsibilities: - Design and build scalable, enterprise-grade full-stack multi-agent , agentic AI applications using modern frameworks including Python, Next.js, TypeScript and Node.js. Architect and integrate AI/ML capabilities including RAG pipelines, AI agent orchestration, and LLM-powered features using OpenAI, Azure OpenAI, and LangChain/LangGraph Lead technical design decisions across API design, microservices architectures, translating complex business requirements into clean,...

Platform Engineer | Trading Firm Central London | 3 days on site Outside IR35 | Up to £650 per day A trading firm in central London has rolled out a business wide data platform and now needs a senior Platform Engineer to take full control of the platform layer. Kubernetes is the heart of this environment and they need someone who can run it with confidence, precision and zero drama. What they need you to bring Serious Kubernetes depth covering cluster design, workload orchestration, autoscaling strategies, multi cluster operations, network policy, resource tuning and deep debugging across pods, nodes and the control plane Deep Linux fluency with the ability to harden, tune and own production environments from top to bottom Strong SQL engineering skills covering schema design, performance tuning and high throughput optimisation Solid C# background with clean, maintainable service patterns Ability to design, build and refine CI/CD...

Senior QA Engineer - Automation Own QA at an award-winning E-commerce company E-commerce - Shopify/Recharge platform Modern QA Automation tools/frameworks (Cypress, Playwright, Selenium etc 6 months + Extensions | £300/day Outside IR35 Prior experience in E-commerce w/Shopify/Recharge heavily prioritised I'm working with an award-winning E-commerce company. Their scientifically backed, leading high street product has transformed thousands of lives and they are constantly evolving with an ever-growing customer base and successful E-commerce and subscription model. To support this evolution, they are looking for experienced QA Engineers to take over and own the QA function of the business. Ideally, you have some proficiency in test automation, modern QA tools and familiarity with key testing frameworks such as Cypress, Playwright, Selenium etc. Even more valuable if you have taken over and owned QA infrastructure/worked as a sole QA. As this is an...

Platform Engineer | Trading Firm Central London | 3 days on site Outside IR35 | Up to £650 per day A trading firm in central London has rolled out a business wide data platform and now needs a senior Platform Engineer to take full control of the platform layer. Kubernetes is the heart of this environment and they need someone who can run it with confidence, precision and zero drama. What they need you to bring Serious Kubernetes depth covering cluster design, workload orchestration, autoscaling strategies, multi cluster operations, network policy, resource tuning and deep debugging across pods, nodes and the control plane Deep Linux fluency with the ability to harden, tune and own production environments from top to bottom Strong SQL engineering skills covering schema design, performance tuning and high throughput optimisation Solid C# background with clean, maintainable service patterns Ability to design, build and refine CI/CD...

Software Development Team Lead (Python) £650 per day (Outside IR35) | 6-Month Initial Contract | Hybrid - 2 Days/Week in Stratford, London Overview: A global online non-profit organisation that improves the lives of millions worldwide is seeking one outstanding Software Development Team Leads to join its expanding innovation engineering team. These are high-impact leadership roles driving the development of cutting-edge technology that will revolutionise Education Technology industry. You will lead backend, full-stack, and front-end engineers as part of a growing innovation unit. This role is ideal for a technically strong leader who thrives in complex, fast-moving environments and enjoys solving hard problems. Key Responsibilities: Lead, mentor, and grow a team of software and QA engineers. Provide architectural direction and hands-on technical guidance. Collaborate with Product, Experience Design, QA, and technical leadership. Influence and contribute to technical...

Software Development Team Lead (Python) £650 per day (Outside IR35) | 6-Month Initial Contract | Hybrid - 2 Days/Week in Stratford, London Overview: A global online non-profit organisation that improves the lives of millions worldwide is seeking one outstanding Software Development Team Leads to join its expanding innovation engineering team. These are high-impact leadership roles driving the development of cutting-edge technology that will revolutionise Education Technology industry. You will lead backend, full-stack, and front-end engineers as part of a growing innovation unit. This role is ideal for a technically strong leader who thrives in complex, fast-moving environments and enjoys solving hard problems. Key Responsibilities: Lead, mentor, and grow a team of software and QA engineers. Provide architectural direction and hands-on technical guidance. Collaborate with Product, Experience Design, QA, and technical leadership. Influence...