69 senior platform engineer jobs found

We’re looking for an EPOS & SCO Platform Engineer to build, configure, and support the in-store point of sale and self-checkout platforms across the estate. You’ll own the full lifecycle of Travel Money Kiosks, EPOS and Hospitality infrastructure, including till hardware, self-checkout units, peripherals, and backend systems—ensuring services are secure, compliant, resilient, and consistently deployed at scale. You’ll automate provisioning, configuration, updates, and monitoring so stores benefit from reliable transaction processing, seamless customer journeys, and minimal downtime. Success means stable retail operations, predictable performance, and confidence from store colleagues, product owners, and operations teams. This is a hybrid role where 3 days per week are expected on site in Bracknell. Requirements Role Responsibilities: Design, build, and maintain EPOS and SCO infrastructure (Tills, Self-Checkouts, peripherals, controllers) across Windows 10,...

We’re looking for an EPOS & SCO Platform Engineer to build, configure, and support the in-store point of sale and self-checkout platforms across the estate. You’ll own the full lifecycle of Travel Money Kiosks, EPOS and Hospitality infrastructure, including till hardware, self-checkout units, peripherals, and backend systems—ensuring services are secure, compliant, resilient, and consistently deployed at scale. You’ll automate provisioning, configuration, updates, and monitoring so stores benefit from reliable transaction processing, seamless customer journeys, and minimal downtime. Success means stable retail operations, predictable performance, and confidence from store colleagues, product owners, and operations teams. This is a hybrid role where 3 days per week are expected on site in Bracknell. Requirements Role Responsibilities: Design, build, and maintain EPOS and SCO infrastructure (Tills, Self-Checkouts, peripherals, controllers) across Windows...

We're looking for an EPOS & SCO Platform Engineer to build, configure, and support the in-store point of sale and self-checkout platforms across the estate. You'll own the full lifecycle of Travel Money Kiosks, EPOS and Hospitality infrastructure, including till hardware, self-checkout units, peripherals, and backend systems—ensuring services are secure, compliant, resilient, and consistently deployed at scale. You'll automate provisioning, configuration, updates, and monitoring so stores benefit from reliable transaction processing, seamless customer journeys, and minimal downtime. Success means stable retail operations, predictable performance, and confidence from store colleagues, product owners, and operations teams. This is a hybrid role where 3 days per week are expected on site in Bracknell. Requirements Role Responsibilities: Design, build, and maintain EPOS and SCO infrastructure (Tills, Self-Checkouts, peripherals, controllers) across Windows...

Full job description We’re looking for an EPOS & SCO Platform Engineer to build, configure, and support the in-store point of sale and self-checkout platforms across the estate. You’ll own the full lifecycle of Travel Money Kiosks, EPOS and Hospitality infrastructure, including till hardware, self-checkout units, peripherals, and backend systems—ensuring services are secure, compliant, resilient, and consistently deployed at scale. You’ll automate provisioning, configuration, updates, and monitoring so stores benefit from reliable transaction processing, seamless customer journeys, and minimal downtime. Success means stable retail operations, predictable performance, and confidence from store colleagues, product owners, and operations teams. This is a hybrid role where 3 days per week are expected on site in Bracknell. Requirements Role Responsibilities: Design, build, and maintain EPOS and SCO infrastructure (Tills,...

Senior ML Platform Engineer London Rate: £650- £750 Per Day Outside IR35 Work Type: In office 5 days a week Start: ASAP This is an opportunity to take ownership of a critical ML platform used day to day by data, machine learning, and robotics engineers. You will work on real production systems that sit at the heart of data capture, dataset creation, and model training, with a clear focus on building reliable, well engineered tooling that unblocks entire teams. The Company They are a technology-driven organisation building a sophisticated platform at the intersection of machine learning, data infrastructure, and robotics. The environment is highly collaborative, bringing together software engineers, ML specialists, and robotics engineers to solve complex, real world problems. Engineering quality, clarity of ownership, and practical impact are core to how they operate. The Role and Deliverables * Own and extend the core platform layer,...

🚀 Senior GCP Platform Engineer | Outside IR35 Looking for a high-impact contract role where you’re not just maintaining systems, but building the future cloud platform? My client is working on on a major Azure → GCP migration within a complex enterprise environment. This is a hands-on, senior role with real ownership across platform design, governance, and delivery. 🔧 What you’ll be doing Lead Azure → GCP migration across critical workloads Design and build GCP Landing Zones and platform architecture Implement Terraform (IaC), CI/CD, and automation Drive best practices across security, governance, and cost optimisation Work closely with engineering teams to enable scalable, self-service platforms 🧠 What we’re looking for Strong experience with Google Cloud Platform (GCP) Proven background in platform engineering / DevOps / cloud infrastructure Hands-on with Terraform + Kubernetes (GKE ideally) Experience with cloud migrations (Azure → GCP a big...

Senior Backend Engineer | Kotlin / Golang/ GCP 6-month contract | Outside IR35 Remote First – Occasional London based office visits Up to £500 per day An established consumer-facing technology business is looking for a Senior Backend Engineer to support the continued evolution of high-scale backend services used by a large international user base. This role would suit an experienced contractor who is comfortable working in Kotlin-heavy backend environments, can operate with autonomy, and is confident helping teams move from legacy systems toward more modern, cloud-native services. The role You will be involved in designing, building, and improving reliable backend services, working closely with product, mobile, platform, and engineering teams. The environment is fast-moving, product-focused, and requires someone who can turn ambiguous requirements into clear technical direction. Key experience Strong backend engineering experience with Kotlin...

SENIOR APPLICATION SECURITY ENGINEER AGENTIC AI SECURITY PLATFORM £800 - 900 per Day (Dependent on Experience) Our Client is a major Financial Services Organisation undertaking a major Security Architecture Programme. They are now entering the Production Build Phase of an Agentic Application Security Agent that will fundamentally change how their Application Security is Delivered within the SDLC click apply for full job details

Senior Backend Engineer | Kotlin/Golang/GCP 6-month contract | Outside IR35 Remote First - Occasional London based office visits Up to £500 per day An established consumer-facing technology business is looking for a Senior Backend Engineer to support the continued evolution of high-scale Back End services used by a large international user base. This role would suit an experienced contractor who is comfortable working in Kotlin-heavy Back End environments, can operate with autonomy, and is confident helping teams move from Legacy systems toward more modern, cloud-native services. The role You will be involved in designing, building, and improving reliable Back End services, working closely with product, mobile, platform, and engineering teams. The environment is fast-moving, product-focused, and requires someone who can turn ambiguous requirements into clear technical direction. Key experience Strong Back End engineering experience with Kotlin...

Senior Data Engineer – 6 months – London, Hybrid - £600 p/d (Outside IR35) Experienced Senior Data Engineer required to join our client on an initial six-month contract to support the design, build, and delivery of enterprise-scale data platform solutions. This is a hands-on technical leadership role responsible for building core platform components while setting and maintaining engineering standards across the wider data engineering team. The successful candidate will lead the technical design and delivery of data pipelines, transformations, and data models across the platform, ensuring outputs are scalable, reliable, and fit for consumption as governed data products. You will work closely with data consultants, architects, governance teams, and integration engineers to deliver high-quality, production-ready solutions within a modern cloud-based data environment. This role requires strong technical expertise across Databricks and modern lakehouse architectures,...

SENIOR APPLICATION SECURITY ENGINEER AGENTIC AI SECURITY PLATFORM £800 - 900 per Day (Dependent on Experience) Our Client is a major Financial Services Organisation undertaking a major Security Architecture Programme. They are now entering the Production Build Phase of an Agentic Application Security Agent that will fundamentally change how their Application Security is Delivered within the SDLC. Early Phases of the Programme have already defined the Target Architecture, Threat Model & Prompt Engineering Strategy . The Next Stage is to Transform this Foundation into a Production - Grade Capability Used Daily by Engineering Teams , enabling Developers to: Triage Application Security Findings in Real Time Receive AI-Assisted Remediation Guidance & Fix Suggestions Reduce Cost , Time & Friction Associated with Securing Code at Scale This is a Hands - On Engineering Leadership role . You will own the End-to-End Technical...

Contract Lead DevOps/Cloud Operations Engineer £500-£550 per day | Initial 3-Month Contract | Outside IR35 Hybrid - Cheltenham (1-2 days onsite per week) We're supporting a technology-led organisation in the search for an experienced Lead DevOps/Cloud Operations Engineer to play a critical role in the stability, security, and performance of a large-scale cloud platform environment. This is a hands-on leadership role suited to a senior cloud operations professional who thrives in fast-paced environments and can quickly add value across operational stability, incident management, cloud infrastructure, and platform resilience. Working closely with senior technology leadership, you'll act as the senior technical escalation point across Cloud Operations, leading high-priority incident response, technical triage, infrastructure improvements, and operational maturity initiatives. You'll also provide guidance and mentoring to engineers within the wider operations function...

Staff .NET Backend Engineer (Contract) UK | Fully Remote (UK-based) | 6 months | £900 per day (Outside IR35) High-growth Product Engineering Team Build and evolve core Back End services powering a large-scale property technology platform We're supporting a well-established, product-led technology business that's continuing to modernise and scale the Back End services behind its core platform. This is a critical engineering role within a mature but evolving environment, focused on building robust, cloud-native services that support real-world, high-volume usage. This role suits an experienced contractor who enjoys owning Back End systems end-to-end, working in production environments, and influencing how services are designed, built and shipped, not just delivering tickets. You'll operate as a Staff-level, hands-on engineer , Embedded within a product squad and working closely with senior engineering leadership to set technical standards and deliver...

Senior Data Engineer - 6 months - London, Hybrid - £600 p/d (Outside IR35) Experienced Senior Data Engineer required to join our client on an initial six-month contract to support the design, build, and delivery of enterprise-scale data platform solutions. This is a hands-on technical leadership role responsible for building core platform components while setting and maintaining engineering standards across the wider data engineering team. The successful candidate will lead the technical design and delivery of data pipelines, transformations, and data models across the platform, ensuring outputs are scalable, reliable, and fit for consumption as governed data products. You will work closely with data consultants, architects, governance teams, and integration engineers to deliver high-quality, production-ready solutions within a modern cloud-based data environment. This role requires strong technical expertise across Databricks and modern lakehouse architectures, alongside...

UK | Fully Remote (UK-based) Staff/Principal Full Stack Engineer (Contract) 6 months | £900 per day (Outside IR35) High-growth Product Engineering Team Build and evolve a core CRM product used across the business We're supporting a product-led organisation that is rebuilding and modernising key areas of an existing CRM platform . This role suits an experienced contractor who enjoys working in brownfield environments , partnering closely with the business, and shaping how a product evolves rather than just delivering tickets. You'll operate as a senior, hands-on engineer within a growing engineering group, working closely with senior leadership to take the product from where it is today to where it needs to be next . The role This is a product-focused engineering position , not a pure delivery role: Rebuild and enhance existing CRM features within a live production system Work end-to-end across Front End and Back End systems Partner closely with...

Senior iOS Engineer (Contract) | Swift, UIKit, MVVM, Snapshot Testing, ActivityKit | High-Traffic Consumer App | £400/day | Remote (UK) | 6-Month initial Contract, Likely extensions | Outside IR35 We’re hiring a Senior iOS Engineer (contractor) to join a cross-functional product team delivering high-quality mobile experiences for a widely used, consumer-facing platform. You’ll be joining a collaborative, quality-driven environment where engineering excellence, performance, and user experience are taken seriously. This is a 6-month initial contract , ideal for senior engineers who enjoy owning technical decisions, mentoring others, and shipping production-grade features in complex environments. The Role | Senior iOS Engineer (Contract) | Swift, UIKit, MVVM, Snapshot Testing, ActivityKit | High-Traffic Consumer App | £400/day | Remote (UK) | 6-Month initial Contract, Likely extensions | Outside IR35 This is a hands-on senior role with strong influence...

Outside IR35 Contract Software Engineer (React & AWS) Leading Media Organisation Digital Platform (UI & UX?Led) Location: Hybrid (London or Manchester) Day Rate: Competitive Contract Length: 6 Months + Overview We are working with a leading UK media organisation to engage an experienced Contract Software Engineer to support the development of a large?scale, user?centric digital platform. The platform is UI and UX?heavy, highly visible, and used by millions, sitting at the intersection of content, information, and media. This role goes beyond pure delivery. You will work in close partnership with Product and UX, playing a key role in discovery, defining technical direction, and taking clear ownership of outcomes across complex, multi?dependency environments. Key Responsibilities * Work collaboratively with Product Managers and UX Designers during discovery to translate user needs into feasible, high?quality technical solutions. * Actively participate in user research,...

Senior PHP Developer (PHP, Playwright, k6) – Mobile RASP & API Security Gateway Pay Rate: £500-£550 (Outside IR35) Duration: 6 months’ Working arrangement: Once a month - Bristol We are currently working with an established financial services organisation operating in the investment and wealth management sector. The organisation is strengthening its mobile application and API security capabilities and is seeking an experienced Senior PHP Engineer to help deliver and operationalise an API Security Gateway solution. This role is delivery‑focused and hands‑on, working across backend engineering, testing, security, and operational readiness in a regulated environment. Responsibilities Design, develop, and maintain secure PHP‑based backend services and APIs Build and maintain automated end‑to‑end and functional test suites using Playwright or similar tools Execute and analyse performance and load tests using k6) to identify reliability, performance, and...

Outside IR35 Contract Software Engineer (React & AWS) Leading Media Organisation Digital Platform (UI & UX?Led) Location: Hybrid (London or Manchester) Day Rate: Competitive Contract Length: 6 months + Overview We are working with a leading UK media organisation to engage an experienced Contract Software Engineer to support the development of a large'scale, user?centric digital platform. The platform is UI and UX?heavy, highly visible, and used by millions, sitting at the intersection of content, information, and media. This role goes beyond pure delivery. You will work in close partnership with Product and UX, playing a key role in discovery, defining technical direction, and taking clear ownership of outcomes across complex, multi?dependency environments. Key Responsibilities. Work collaboratively with Product Managers and UX Designers during discovery to translate user needs into feasible, high?quality technical solutions.. Actively participate in user research,...

We are working with a leading London-based organisation that is building a modern, enterprise-wide data platform using Microsoft Fabric and is seeking a Senior Data Engineer to play a key role in its development. This is a hands-on role within a greenfield Fabric environment, supporting critical business areas including finance, operations, and strategic decision-making. The successful candidate will design and deliver scalable data solutions across ingestion, modelling, and optimisation, working closely with cross-functional teams to help shape a robust, future-ready data platform. This role requires the Senior Data Engineer to be onsite at the client's London offices three days per week. Skills/Responsibilities Experience of designing and building scalable, production-grade data pipelines and Lakehouse/Warehouse solutions using Microsoft Fabric (OneLake, Dataflows Gen2, Pipelines, Notebooks) Experience of implementing advanced Fabric capabilities such as Shortcuts,...