34 gas engineer jobs found in London

UI Architect 6 months + contract or Perm London - Hybrid (4 days per week from office) Up to £600pd Inside IR35 UI Architect – React JS & Java Spring Boot Ecosystem We are seeking a highly skilled UI Architect with deep expertise in React JS and strong backend exposure to Java Spring Boot microservices, to lead the design and delivery of scalable, high-performance, and user-centric enterprise applications. The ideal candidate will bring a strategic architectural mindset, combined with hands-on experience in crafting modern, responsive front-end platforms and seamlessly integrating them with RESTful APIs and microservices-based back-end systems. You will be responsible for defining and governing UI architecture standards, ensuring consistency, scalability, and optimal performance across applications. A distinguishing requirement of this role is proven, hands-on experience leveraging AI-assisted coding tools — such as Claude Code, Cursor AI, or GitHub Copilot — in...

This is a fully remote 6 month FTC position - (UK applicants only) ** Automation Engineer with Playwright experience and good JavaScript / Typescript coding skills is required by my consulting client. We are working with a leading Consulting firm seeking an Automation Engineer with Playwright experience, their client is a financial institution who are looking to establish automation frameworks (Playwright) and CI/CD pipelines from scratch. You will be the go-to person for automation strategy and delivery in a modern, cloud-based environment. Key Responsibilities: * Design and build robust automation frameworks using Playwright (TypeScript or Javascript) * Set up and manage CI/CD pipelines, ideally within Azure DevOps * Collaborate with client development and QA teams to embed automation throughout delivery * Contribute to testing and deployment within cloud environments (preferably Azure) * Champion automation best practices in a consulting-led, greenfield...

Staff ML Engineer | Agentic AI | ML Engineering | London (3 days per week on-site) | Contract | Inside IR35 We're supporting a global technology-driven organisation that's scaling enterprise AI across its UK engineering function. Rather than building AI capability from scratch, the organisation has already invested heavily in enterprise AI platforms and Agentic AI frameworks. The challenge now is driving consistent adoption, establishing engineering standards and enabling multiple engineering teams to build production-ready AI solutions using common patterns and best practice. This is a Staff Engineer position where you'll shape the technical direction of AI Engineering across the organisation. You'll be responsible for Defining engineering standards for enterprise AI Driving adoption of Agentic AI across multiple engineering teams Designing production-grade RAG architectures Establishing LangGraph and LangChain implementation patterns Designing scalable vector database...

Staff Data Engineer | AWS | PySpark | Data Modernisation | London | Contract | Inside IR35 We're supporting a global, technology-led organisation undertaking a large-scale cloud data transformation programme. This isn't a traditional Data Engineering role. The organisation is modernising hundreds of complex data pipelines, establishing reusable engineering patterns and embedding engineering excellence across its Data function. As a Staff-level engineer, you'll combine deep hands-on technical expertise with organisation-wide technical influence, helping shape how modern Data Engineering is delivered across multiple engineering teams. This is an opportunity to work on enterprise-scale data movement, cloud-native architectures and AI-assisted software engineering within a highly collaborative engineering culture. You'll be responsible for Defining technical standards and engineering patterns for a large-scale Data Modernisation programme Re-engineering complex legacy data...

Senior Java & Kotlin Backend Engineer Location: London (Hybrid - Wednesday office attendance required) Contract: Initial 2 months IR35: Outside IR35 Start Date: ASAP The Role We're working with a leading technology organisation seeking an experienced Senior Java & Kotlin Backend Engineer to join their engineering team on an initial two-month contract. This role offers the opportunity to contribute to greenfield backend development, building scalable, cloud-native microservices within a modern engineering environment. You'll work alongside cross-functional teams to design, develop and deliver high-quality backend solutions that are secure, reliable and built for scale. Key Responsibilities Design, develop and maintain backend services using Java and Kotlin. Build and enhance RESTful APIs within a microservices architecture. Develop secure, scalable and high-performance applications. Collaborate with Product Managers, Engineers and technical stakeholders to deliver...

ServiceNow Developer Contract - Hybrid Based in London £400 - £500 per day insideIR35 We are hiring for a ServiceNow Developer to join a collaborative engineering team responsible for enhancing a business-critical enterprise platform used by partners and customers across multiple international markets. As a ServiceNow Developer, you will be responsible for designing, developing and supporting scalable solutions across the ServiceNow platform. Working alongside Product Managers, Business Analysts and Engineers, you will help deliver high-quality features that improve business processes and user experience. Responsibilities: * Design, develop and maintain ServiceNow applications and platform enhancements. * Translate business requirements into robust technical solutions. * Develop and support Service Portal/Employee Centre functionality. * Build integrations using REST APIs and modern web technologies. * Participate in Agile ceremonies including sprint planning, refinement,...

Hardware Team Lead £87.83 per hour (Inside IR35) - Negotiable 12 months Monday to Thursday on site - Rochester (Kent) As a Hardware Team Leader, you will lead a team of highly skilled and experienced hardware engineers responsible for the support to our production programs within products such as Helmet Mounted & Head-Up Displays, Mission Computers, Flight Controls, Active Inceptors and other associated safety critical technology. Core duties: You will be providing managerial and technical leadership of an electronics design team You will be involved in work package management; cost, schedule, risk and opportunities You will be ensuring the engineering team is supporting the production program demand You will be providing technical governance and ensuring adherence to company processes You will be leading cost and performance trade-offs Essential Skills: You will be able to demonstrate high performance and achievement in leadership and management of engineering teams...

Our client, a leading global SaaS organisation is looking for a Data Engineer to join their International Engineering team. This is a great opportunity to contribute greatly to an extremely engineering-focused organization and further your experience across technologies such as Cloud Composer, Airflow, Dataflow, Spark, Terraform, Google Cloud Platform, etc; You will own engineering efforts to provide partner teams within the organisation with data sources that build the AI/ML user experience. This a contract role 12 months Hybrid role with the opportunity for the role go permanent. What You'll Do: * Build and maintain scalable data pipelines for BigQuery using Cloud Composer and Airflow; * Provide observability and monitoring using Monte Carlo and Looker as well as operational tools such as NewRelic and Splunk, driving reliability, data quality, data quality and robustness; * Build critical data quality checks to ensure that the data we process and provide to partner...

AI & Data - AI / ML Engineer Overview We are seeking a highly technical, hands-on AI Native Software Engineer to design, build, and deploy production-grade AI systems for complex enterprise environments. If you are passionate about building scalable, cloud-native solutions and pioneering agent-based workflows, we want you on our team. Key Responsibilities Design & Deploy: Architect and launch robust, scalable, cloud-native AI applications. Agentic Workflows: Implement, optimize, and manage advanced agent-based AI workflows and LLM integrations. System Integration: Seamlessly integrate diverse AI platforms and tools into existing enterprise ecosystems. Production Excellence: Ensure all AI-driven systems are secure, performant, and built for production scale. What You Bring Consulting Background: Proven experience working within a Big 4, top-tier management consulting, or engineering consulting environment. Education: A strong tertiary qualification (Degree/Master's)...

We are looking for a Senior C++ Engineer to join a newly forming, elite engineering squad tasked with modernizing the core cross-platform networking stack for one of the world's largest streaming tech ecosystems. 💼 The Gig at a Glance Role: Senior C++ Engineer (Mobile Infrastructure) Term: Contract until year-end (with strong potential for extension) Location: 100% Remote Tech Stack: C++, iOS, Android, HTTP/2+, WebSockets, Custom Shared Libraries 🛠️ What You'll Actually Do This isn't your standard mobile feature-building role. You will sit squarely at the boundary of client platforms and backend infrastructure to: Modernize the Stack: Refactor and modularize a highly mature, business-critical C++ core shared library across iOS and Android layers. Evolve Protocols: Shape client-server contracts, handle network state detection, and optimize real-time messaging systems. Enhance Observability: Build deep telemetry and metrics to diagnose latency and performance anomalies...

Software Development Specialist / Professional 📍 Location: London or Cheltenham or Ipswich or Manchester- Full Time Onsite role 🕒 Permanent | Full-Time | 37.5 Hours per Week 🔒 Live DV Clearance Essential Our client are an expanding high-performing engineering team supporting mission-critical environments and are looking for talented Software Development Specialists and Engineering Professionals who are passionate about building, securing and automating modern technology platforms. This is an opportunity to work within a software-defined, automation-first environment where infrastructure, security and applications are delivered through code. You'll join a team focused on modern engineering practices, CI/CD, Infrastructure as Code, cloud-native technologies and security-by-design principles. Please note: A current, live DV (Developed Vetting) Clearance is essential for this role. Applications from candidates without active DV clearance cannot be considered. The Opportunity...

Job title: UX Designer Type : Contract for 6 months(Inside IR35) Location: hybrid from London (Tue - Thursday onsite)Job Description: Mandatory Proven motion design experience within Product Design or UX/UI animation. As a User Experience (UX) Designer, you own outcomes for one mature project, complex program, or emerging area. You accomplish this by navigating and defining a scalable and sustainable approach to solve difficult problems with limited precedent and/or by developing and evangelizing long-term user experience & product strategy for your team. You influence by guiding the momentum of multiple adjacent design efforts and/or by providing alternative perspectives for your team that challenge prevailing thinking against common objectives and/or by provoking greater divergence of thinking. You apply your expertise by serving as a subject-matter expert in UX design principles, user-centered product development methodologies, design systems, and research tools. You...

Contract Data Engineer London (City) | Hybrid (3 days on-site) £(Apply online only)/day (Flexibility for the right person) 6 Month Contract Immediate Start I'm supporting a client who is looking for an experienced Data Engineer to join their team on an initial 6-month contract. The role will involve supporting BAU activities while playing a key part in a data migration project, working closely with business stakeholders to gather requirements, perform gap analysis, and deliver ETL and data integration solutions using Talend. Key experience: Talend Strong SQL Oracle or SQL Server Linux / Shell Scripting ETL, data migration and systems integration Requirements gathering and gap analysis Hybrid working (3 days per week in the London office) with an immediate start available. If you're interested, or know someone who may be suitable, please get in touch. (url removed)

Role Title: Pega Engineer Duration: contract to run until 31/12/2026 Location: Remote Rate: up to £552 p/d Umbrella inside IR35 Clearance required: Active SC Clearance and UK Passport Role purpose / summary We are seeking an experienced Pega engineer to support the design, development, and delivery of Pega-based solutions. The successful candidate will have strong hands-on Pega development experience, integration expertise, and the ability to work within secure and regulated environments. Key Responsibilities: Design and develop scalable Pega solutions aligned to business and technical requirements. Design, build, and support integrations with internal and external systems. Conduct solution reviews and ensure adherence to Pega best practices. Work closely with business stakeholders, developers, and testers to deliver high-quality solutions. Support governance, security, and compliance requirements. Essential Requirements Minimum 2-3 years' hands-on experience working...

Job title: UX Designer - Google Type : Contract for 6 months(Inside IR35) Location: hybrid from London (Tue - Thursday onsite)Job Description: Mandatory Proven motion design experience within Product Design or UX/UI animation. As a User Experience (UX) Designer, you own outcomes for one mature project, complex program, or emerging area. You accomplish this by navigating and defining a scalable and sustainable approach to solve difficult problems with limited precedent and/or by developing and evangelizing long-term user experience & product strategy for your team. You influence by guiding the momentum of multiple adjacent design efforts and/or by providing alternative perspectives for your team that challenge prevailing thinking against common objectives and/or by provoking greater divergence of thinking. You apply your expertise by serving as a subject-matter expert in UX design principles, user-centered product development methodologies, design systems, and research tools....

Forward Deploy Engineer Rate: £700-£800/day Inside IR35 Duration: 6 months Clearance: Active SC Clearance required Location: London preferred (Bristol or Manchester considered) Working Pattern: Hybrid with flexible office attendance. Candidates are encouraged to spend more time onsite during onboarding. Overview We're looking for an experienced Forward Deploy Engineer to join the Digital & Cyber Capability team within DSIT, helping deliver innovative AI-powered solutions that support the Civil Service's digital transformation agenda. This is a unique opportunity to work across greenfield products, taking ideas from concept through to production. You'll be the team's primary software engineering specialist, building applied AI solutions, integrating LLMs, and developing scalable software products that support digital capability across government. Key Responsibilities * Design, build, and deploy end-to-end software solutions using modern engineering practices *...

Job Title: Back End / Fullstack Engineer III Location: UK(Fully remote) Contract Duration: 6 months About the Role We are looking for a Web / Fullstack Engineer to help our team. You bring a strong foundation in system design, data structures, and algorithms. You enjoy untangling problems with teammates and choosing pragmatic solutions that move the product forward. You will design clear interfaces, dependable data flows, and resilient systems that ensure we engage with people in innovative ways, every step of the way. What You'll Do Design & Build: Architect, develop, and operate both frontend (web) and backend (APIs, microservices) systems that can scale globally, following good design and development practices. Cross-Functional Collaboration: Partner with a team of engineers, product managers, designers, and data scientists to build end-to-end client-facing experiences. Drive Quality: Champion engineering best practices, sound architecture, and operational...

Avaloq Developer (Contract) Location: London Working Pattern: Hybrid - typically 2 days per week onsite Contract Length: 24 weeks July 2026 - December 2026) Hours: 40 hours per week Rate: Up to £685 per day (Inside IR35 via Umbrella) Job Title: Packaged/SaaS Application Engineer - Avaloq Developer The Opportunity We are seeking an experienced Avaloq Developer to join a high-profile banking programme, delivering enhancements and customisations within the Avaloq Banking Suite. This is an exciting opportunity to work on complex banking solutions, contributing to the design, development and implementation of critical functionality within a fast-paced and collaborative environment. The successful candidate will play a key role in the end-to-end delivery lifecycle, ensuring solutions are designed, developed and tested to meet both business and regulatory requirements. Key Responsibilities Design, develop and implement solutions within the Avaloq Banking Suite. Deliver...

Our client has an exciting opportunity for a CRM Full Stack Software Engineer to join the team. Location: UK (Remote) Rate: Competitive Contract: Full-Time Contract (3–6 Months) About The Company Our client is an ambitious and fast-growing international technology/marketing business delivering innovative digital solutions that help organisations improve operational efficiency, customer engagement and business performance. Working across a range of sectors, the organisation combines technology, data and digital innovation to build scalable platforms that support business growth and deliver exceptional customer experiences. As part of a significant technology programme, they are seeking an experienced CRM Full-Stack Software Engineer to join the development team on an initial 3–6 month contract. This role will play a key part in enhancing and scaling a modern CRM platform, developing secure, high-performance applications that support business-critical operations whilst...

Solution Engineer – Enterprise AI (6-Month Contract) SC Cleared - Must have active transferable SC Clearance * Location: Waterloo, London (100% Onsite, 5 days per week) * Rate: £650 - £700 per day (Inside IR35) * Duration: 6 months (with potential to extend) About the Role This is not a high-level advisory role. As a Solution Engineer you will be on the ground, coding, designing, and deploying full-stack AI-driven web applications directly on this AI Platform. You will bridge the gap between complex AI engineering and customer-facing delivery. You will work directly with major enterprise clients to build custom demos, proofs-of-technology, and production-ready applications. What You Will Do * Build & Deploy: Engineer full-stack, AI-based enterprise applications using Python and JavaScript. * Client Delivery: Run technical deep-dives, demonstrations, and system training for enterprise customers. * Review & Troubleshoot: Conduct code...