7 backend engineer jobs found

Senior Backend Engineer - Node.js/TypeScript 12-Month Contract | Fully Remote | Outside IR35 We're looking for a Senior Backend Engineer to join an exciting fintech business, working on highly scalable, mission-critical financial systems. The role is heavily focused on Node.js, TypeScript and AWS , with genuine ownership across the full lifecycle — from system design and architecture through to development, release and production support. You'll have the opportunity to work on new products and capabilities from an early stage , making key technical decisions and helping shape how the platform evolves. What you'll be working on Design, build and operate reliable, scalable Back End services Own areas of the platform, including architecture and technical direction Build resilient APIs and distributed systems within a regulated financial environment Work with AWS serverless technologies , including Lambda, SQS, EventBridge and API Gateway Work with MongoDB and...

Senior Platform Engineer (Cloud Media Platforms) Start ASAP (within 2-4 weeks notice) expected duration 6+ months initially London- Hybrid 2/3 days typically wfh/West London £450-470pd Outside IR35 Must have right to work in the UK and be based near London. Senior Platform Engineer (Cloud Media Platforms) providing technical design and development/implementation of systems that industrialise media workflows. Acting as the primary technical authority for Cloud NAS integration, media ingest pipelines, & automated metadata scripting. Prior experience in the media broadcasting industry, specifically with digital asset management, Cloud NAS, and video ingest or similar workflows is required. You will need strong Cloud DevOps skill set, hands on scripting of either Python, Go, or Node.js for automation and API development, hands-on expertise with AWS (preferred) or GCP and Infrastructure as Code (Terraform) etc Senior Platform Engineer (Cloud Media Platforms) Job...

My client has a need for an experienced Android Engineer to join their team for an initial 8 week piece of work with potential to extend. This is a hybrid role and is outside of IR35 Android (primary depth) Kotlin and modern Android in large production codebases; Jetpack Compose alongside Legacy View-based UI Multi-module builds: reading, untangling and mapping them, including convention plugins and version catalogues DI frameworks and the ability to derive actual runtime structure from wiring Architectural patterns in practice (MVVM, MVI, Clean-style layering), and the ability to identify what a codebase genuinely does Code archaeology and analysis Navigating an unfamiliar large codebase quickly and systematically Static analysis, dependency graph extraction, module dependency visualisation, code search at scale Reading CI/CD pipelines as a source of architectural truth: Fastlane, Bitrise, GitHub Actions, Jenkins, Gradle/Xcode build logic Reconstructing runtime...

Contract: 1 month initially Rate: £500 per day Location: Fully remote Status: Outside IR35 We 're looking for an experienced JavaScript/TypeScript Engineer with strong hands-on experience across Next.js, NestJS to join us on a short-term contract and help build and improve an Android fitness app. This is an opportunity to work on a fast-moving, product-led application with a strong focus on AI-assisted development, modern JavaScript engineering and efficient delivery workflows. You 'll be joining at an important stage of the product, so we 're looking for someone who can hit the ground running, work independently and deliver high-quality features quickly. What you 'll be doing Building and improving features for an Android fitness app using Next.js and NestJS. Working across the TypeScript stack, including APIs, integrations and application architecture. Collaborating remotely with the product and engineering team to deliver...

Flutter Engineer – Contract – Outside IR35   I’m currently supporting a client looking for an Mid/ Senior Flutter Engineer to join them on a contract basis.   They currently outsource a large part of their development to an agency in Europe and are looking to bring someone in-house who can take ownership of the mobile side and help improve communication between the internal and external teams.   Key skills: Strong commercial Flutter / Dart experience Ideally some React/ React Native Exposure Experience building and maintaining production mobile applications Comfortable reading and understanding Python / Django code Strong understanding of APIs and backend integrations Able to work closely with backend engineers and external development teams Strong communication and ownership   📍 Remote – 1 day per month in Farringdon, London 💰 £300–£400 per day 📅 Contract...

Enterprise Integration Developer – ERP / Billing Systems (Contract) SourceWise is looking for an experienced, hands-on Enterprise Integration Developer to support a major technology client building integrations between modern APIs and enterprise ERP and billing platforms. The role will focus on designing and delivering production-grade connectors between external APIs and platforms such as Workday, Salesforce, Microsoft Dynamics, Zuora or similar enterprise systems . We are looking for someone who has personally built, deployed and supported enterprise integrations , rather than someone whose experience is primarily functional configuration, implementation consulting or advisory work. What you’ll be doing Design and build integrations between enterprise ERP/billing platforms and external APIs. Develop native applications, extensions, plugins or workflow automations within your specialist enterprise platform. Trigger integrations from business events such as...

Senior Android Engineer (Contractor) Location: Manchester city centre, 2 days/week onsite + remote 3 days/week Contract: Initial 3-4 month contract (strong likelihood of extension) Rate: £400-500 (Outside IR35) Start Date: Early October Overview Are you looking to make a genuine, visible impact in a short window rather than settle into a long slow ramp-up? This role offers exactly that. We're looking for an experienced Senior Android Engineer to join the Digital Engineering team of a well-known UK consumer brand, on a hands-on delivery contract supporting a significant new customer-facing proposition. The Android app is a modern, Kotlin-first, Jetpack Compose-only application built on multi-module clean architecture, with an established in-house permanent engineering team already in place. This is a genuine delivery role for someone who can get up to speed fast, ship high-quality software without unnecessary ceremony, and leave the codebase in a better state than they found...