10 senior platform engineer jobs found in London

Senior D365 Engineer (Finance & Operations) Outside IR35 / Fully remote working / £400 - 575 per day We're working with a fast-growing global consumer brand looking for a Senior D365 F&O Engineer to help scale and optimise their finance technology landscape. You'll be responsible for delivering end-to-end D365 F&O solutions, building integrations across enterprise systems, and working closely with finance and engineering teams to drive business-critical initiatives. 6+ years' D365 F&O development experience Strong X++, C#/.NET and TypeScript skills Experience within retail, e-commerce or consumer-focused businesses Knowledge of finance processes (GL, AP, AR, reporting) Azure DevOps, CI/CD and integration experience This is a fantastic opportunity to join a high-growth organisation where you'll have real influence on architecture, platform development and future technology strategy. Outside IR35 / Fully remote working / £400 - 575...

Senior Mobile QA Engineer (iOS & Android) £400 - £425 per day | Outside IR35 | Initial 6-Month Contract | Hybrid (Stratford, London) | Immediate Start Available Our trusted partner within the Ed-Tech sector, employing over 10,000 people across 100 countries and supporting more than 600 million users globally, is seeking an experienced Senior Mobile QA Engineer to join a high-profile product engineering team developing innovative mobile learning applications. This role is ideal for a QA professional with extensive experience testing native and cross-platform mobile applications across iOS and Android environments, coupled with a strong background in test automation and modern Agile delivery practices. Key Responsibilities Lead quality assurance activities across mobile applications, ensuring exceptional user experience on both iOS and Android platforms. Develop and execute comprehensive test strategies, test plans and test cases. Design, implement and...

3rd Line Engineer 📍 White City, London (4 Days Onsite) 💰 £350-450 per day 📄 Outside IR35 📅 Initial 6-Month Contract I'm currently supporting a well-known retail brand that is investing heavily in its internal IT function and looking to hire an experienced 3rd Line Engineer to join the team on an initial 6-month contract. This is a hands-on role where you'll play a key part in improving and stabilising a large Microsoft-based environment, working across infrastructure, cloud, networking and security technologies. What You'll Be Doing • Providing 3rd line support for complex technical issues • Managing Microsoft 365 and Windows environments • Supporting Azure infrastructure and cloud services • Leading patching, vulnerability management and security improvements • Managing backup and disaster recovery processes • Working with networking, firewalls and email security platforms • Supporting infrastructure upgrades, migrations and improvement projects •...

Product Manager Outside IR35 Contract £300 - £350 per day | 2 Days Onsite in Central London We’re working with an established retail business undergoing a significant technology and operational transformation, and we’re looking for a Product Manager to join the team on an initial 6-month Outside IR35 contract. This is a business that has been operating successfully for over 10 years but still maintains a genuinely entrepreneurial culture. There’s very little hierarchy, decisions are made quickly, and Product and Engineering work closely together to deliver meaningful change across the organisation. This is a hands-on Product Manager role focused heavily on delivery. You’ll work closely with a Senior Product Manager and Engineering teams, taking broad business objectives and helping turn them into clear, actionable work that can be delivered by development teams. We're looking for someone who enjoys getting into the detail, working directly with engineers,...

Cloud Operations Engineer (Azure) | 3 months initial London | Hybrid - 2 Days Office Based | Outside IR35 | £350-400 p/d We're working with a leading UK financial services technology business, one of the most recognised names in the sector, on the lookout for a hands-on Cloud Operations Engineer to join their infrastructure team on a contract basis. This is a strictly operational role. No architecture, no greenfield design, this is about keeping production environments stable, secure, and performant in a fast-paced, regulated environment. If you thrive on BAU ops, incident response, and continuous improvement of monitoring and resilience, this one's worth a look. What you'll be doing: Operating and supporting Azure production and non-production environments, heavy focus on compute, virtual networking, and storage. Acting as 1st and 2nd line of defence for platform and application issues, with participation in an out-of-hours on-call rotation for P1/P2 incidents. Executing...

Full job description Location:  London (Hybrid) Rate:  £50-55 per hour + VAT IR35 Status:  Outside IR35 About the Opportunity We're supporting an innovative technology business developing cutting-edge wearable products that combine hardware, embedded systems, AI, and data analytics to deliver real-time performance coaching. The business has grown from an early-stage concept into a globally recognised technology platform, leveraging large-scale real-world data and intelligent sensing to create industry-leading products. We're seeking a Hardware & Embedded Software Engineer to help develop the next generation of wearable technology. The Role This is a highly varied engineering position sitting at the intersection of hardware, embedded software, sensors, and product development. You'll work closely with product, AI, mobile, and data teams to develop wearable electronics that deliver accurate real-time performance feedback in demanding...

Senior Manual QA Engineer (IoT / Firmware) 3 Month Contract | Outside IR35 | c. £375 per day London, ideally 1 day per week in office if possible Talentedge are looking for a well-experienced Manual QA Engineer to help deliver exceptional quality across a range of our clients IoT products. This is a hands-on role for someone who enjoys exploratory testing, uncovering edge cases, and working closely with engineers to ensure products are reliable, intuitive, and enjoyable to use, but is equally comfortable communicating with and guiding a small QA team. What you'll be getting up to: Conduct manual testing across multiple platforms. Design and execute test scenarios that validate real-world customer experiences. Identify, prioritise, and investigate defects, partnering closely with developers to drive resolutions. Create clear test plans, test cases, and quality reports with strong traceability to requirements. Contribute to product design discussions,...

Senior Full-Stack Engineer - 6 Months Contract - up to £400 Per day Outside IR35 - Retail We’re working with a well-established retail business currently undergoing a major internal transformation programme, and they’re looking for a Senior Full Stack Developer to join on a 6 month contract. The business has been operating successfully for over 10 years and combines the stability of an established company with the pace and culture of a start-up environment. Decisions happen quickly, there’s very little hierarchy, and engineers are trusted to own delivery and make a tangible impact. This role will focus heavily on building modern internal applications and operational tooling that support large-scale scheduling, fulfilment, logistics, optimisation and customer service functions across the business. The Role You'll play a key role in developing modern React-based internal applications alongside supporting .NET backend services, helping replace legacy workflows with...

?? Senior Voice AI Engineer - Contract (Outside IR35) | £350-500/day | 3-4 months | Remote ?? We're looking for a hands-on engineer to take an existing voice AI proof-of-concept and turn it into a reliable, production-grade system ready for real users. The prototype works - but it now needs to be made fast, stable, scalable, and cost-efficient. What you'll be doing: - Productionising a voice AI system from an existing PoC - Working with voice platforms such as ElevenLabs/Deepgram (or similar) - Improving Real Time performance and reducing latency - Designing lightweight orchestration (simple, deterministic flows over complex prompt chains) - Integrating customer/internal data using RAG approaches - Optimising cost, reliability, and system efficiency - Building and maintaining API/SDK-based voice pipelines - Supporting secure handling of sensitive/PII data What we're looking for: - Strong experience building voice AI or Real Time speech systems - Hands-on experience with...

Senior Voice AI Engineer - Contract (Outside IR35) | £350-500/day | 3-4 months | Remote We 're looking for a hands-on engineer to take an existing voice AI proof-of-concept and turn it into a reliable, production-grade system ready for real users. The prototype works - but it now needs to be made fast, stable, scalable, and cost-efficient. What you 'll be doing: - Productionising a voice AI system from an existing PoC - Working with voice platforms such as ElevenLabs / Deepgram (or similar) - Improving real-time performance and reducing latency - Designing lightweight orchestration (simple, deterministic flows over complex prompt chains) - Integrating customer/internal data using RAG approaches - Optimising cost, reliability, and system efficiency - Building and maintaining API/SDK-based voice pipelines - Supporting secure handling of sensitive/PII data What we 're looking for: - Strong experience building voice AI or real-time speech systems - Hands-on...