Software Engineering Lead- Javascript, AWS- outside IR35

Added 17/03/2026

Software Engineering Lead - Backend (JavaScript / TypeScript, Node.js, AWS, Kafka)Outside IR35Remote with 2 days a month in the office in LondonWe're looking for an experienced Software Engineering Lead with a strong backend development background to lead the delivery of scalable, cloud‑native systems.Key skills:Strong commercial experience with JavaScript, TypeScript, and Node.jsProven experience building event‑driven systems using KafkaStrong AWS experience across modern cloud servicesBackground designing and operating microservices / distributed systemsHands‑on technical leader with experience mentoring engineers and leading deliveryRole overview:Lead backend architecture and development while remaining hands‑onDrive best practices through code reviews and technical leadershipWork closely with Product, DevOps, and...

Full Stack Tech Lead - C#/.NET | React/Next.js|GCP

Added 12/02/2026

One of our clients is looking for a hands-on Full Stack Tech Lead to join them on a 12-month contract based in Kings Cross, London.This is a key technical leadership role, responsible for driving the architecture and delivery of a large-scale, cloud-native platform integrating with external financial, risk, and payment services. The position combines strategic architectural oversight with 60-75% hands-on development. Job Title: Full Stack Tech Lead Location: Kings Cross, London Contract: 12 Months Rate: CompetitiveKey Requirements:Expert-level C# / .NET (backend services, APIs, high-throughput systems)Strong React / Next.js experience (including SSR & optimisation)Extensive experience with Google Cloud Platform (GCP)Experience integrating...

Systems Engineer (Integration / Communications Systems)

Added 09/04/2026

Systems Engineer (Integration / Communications Systems)Main Description DetailsDetailed Job Description✱We are seeking a Systems Engineer to support the integration, validation, and deployment of complex communication and hardware systems. This role focuses on end-to-end system design, integration, and performance across multi-disciplinary engineering environments.This position requires strong cross-functional collaboration and the ability to support field deployments across domestic and international locations.Key Responsibilities:Lead system integration activities across hardware, software, and network componentsDefine system requirements, architecture, and interfacesSupport end-to-end validation and performance testingTroubleshoot system-level issues and drive root cause analysisCollaborate with electrical, mechanical, and QA teams to ensure system alignmentSupport deployment, commissioning, and field...

Azure Solution Architect- Agentic AI - Contract

Added 16/04/2026

Azure Solution Architect / Hands-on Platform Engineer (AI on Azure) Contract | UK Remote/Hybrid We're looking for a hands-on Azure Solution Architect who can also operate as a Platform Engineer - someone who can design the target architecture and then get stuck in building it. You'll be working with a delivery team deploying AI capabilities on top of Microsoft Azure in a complex enterprise environment, where governance, security controls and platform customisation are the norm.This is not a slideware role - you will be engineering day-to-day, automating platform build, enabling secure deployment paths, and supporting teams to run AI workloads...

Python Full Stack Developer - Agentic AI- Contract

Added 24/03/2026

Python Full Stack Developer - Agentic AIMy client is seeking a Python Full Stack Developer with AI experience.Must have:Strong Python, Javascript, tyepscript experienceAgentic AI experience (multi‑agent design, agent skills, progressive disclosure)Context & prompt engineeringAWS Bedrock, DockerFamiliarity with REST APIs, relational databases Please send across an updated CV if this position is of interestInterviews to take place this weekGCS is acting as an Employment Business in relation to this vacancy.

Python Full Stack Developer - Agentic AI/LLM, RAG - Contract

Added 17/03/2026

Python Full Stack Developer - Agentic AIMy client is seeking a Python Full Stack Developer with hands‑on agentic AI experience.Must have:Strong Python experienceAgentic AI experience (multi‑agent design, agent skills, progressive disclosure)Context & prompt engineeringAWS Bedrock, DockerMCP, agentic tools, bash scriptingFamiliarity with REST APIs, relational databasesNice to have:Claude Code LLM observability, logging/tracing, MLflowHands‑on building and scaling agentic AI systems in production.Please send across an updated CV if this position is of interestInterviews to take place this weekGCS is acting as an Employment Business in relation to this vacancy.

Data Scientist - Fully Remote - Consultancy - AI / Agentic AI

Added 06/02/2026

Data Scientist for a Global consultancy. Varied clients.Please only apply if you have the ability to be security cleared (5+ years in the UK)Role - Data Scientist - AI / Agentic AI Type - Perm Location - Remote - Occasional office visit in the UKSalary - £60,000Role * The Data Scientist will join a growing analytics and AI function, contributing to the development of intelligent solutions that support business decision making and automation. This role is ideal for someone with solid Python skills, hands on exposure to AI or Agentic AI projects, and a strong grounding in machine learning fundamentals....

L3 Field tech

Added 21/05/2026

Field Lead Technician (L3) - Data Centers Location: [Insert Location]Job Type: Full-TimeReports To: Field Services ManagerTravel: As Required Position OverviewThe Field Lead Technician (L3) leads teams performing installation services as defined under applicable agreements and ensures all work is executed to required technical, quality, and safety standards. This role serves as a subject matter expert in fiber optic installation, testing, and complex troubleshooting, and operates effectively in live, mission-critical data center environments. The Field Lead Technician (L3) independently performs and oversees all installation and cabling services, is responsible for field leadership, coordination, oversight of quality assurance and quality control activities,...

L3 Field tech

Added 21/05/2026

Field Lead Technician (L3) - Data Centers Location: [Insert Location]Job Type: Full-TimeReports To: Field Services ManagerTravel: As Required Position OverviewThe Field Lead Technician (L3) leads teams performing installation services as defined under applicable agreements and ensures all work is executed to required technical, quality, and safety standards. This role serves as a subject matter expert in fiber optic installation, testing, and complex troubleshooting, and operates effectively in live, mission-critical data center environments. The Field Lead Technician (L3) independently performs and oversees all installation and cabling services, is responsible for field leadership, coordination, oversight of quality assurance and quality control activities,...

Field Tech 2

Added 19/03/2026

The Fiber Technician (Tech 2) supports a pilot manufacturing and production line building precision fiber optic assemblies for broadband and data center applications. This role is responsible for assembly, inspection, dimensional measurement, testing, and data documentation in a clean, lab-style production environment.This is a hands-on technical role requiring strong mechanical aptitude, attention to detail, and experience working with small, delicate components.Key ResponsibilitiesAssemble and build fiber optic components and subassembliesOperate precision bench-top equipment for fiber preparation (cutting, stripping, termination)Use digital microscopes to inspect fiber assembliesTake dimensional measurements (length, diameter, alignment)Capture images and document inspection results in internal systemsPerform pass/fail evaluations based...

Lead Software Engineer- outside IR35

Added 18/03/2026

Lead Software Engineer (Backend) JavaScript/TypeScript, AWS, Kafka Outside IR35 ContractMy London based client is urgently looking for an experienced Lead Software Engineer with a strong back-end focus to lead the build and evolution of scalable, cloud-native services. You'll set technical direction, mentor engineers, and stay hands-on delivering production code.What you'll do:Lead backend design and development (Node.js, TypeScript/JavaScript)Build and operate event-driven microservices using KafkaOwn AWS-based delivery (scalability, performance, reliability, security)Drive engineering standards: code reviews, testing strategy, CI/CD, observabilityPartner with Product/Architecture to translate requirements into robust solutionsKey skills:Strong commercial backend experience with JavaScript/TypeScript (Node.js)Kafka experience (event-driven systems, distributed messaging)Strong AWS experience across...

Senior Python Engineer (AI Platforms & Distributed Systems)

Added 12/05/2026

Senior Python Engineer (AI Platforms & Distributed Systems)Location: Chicago Work Arrangement: Hybrid Employment Type: ContractOverviewWe are seeking a highly specialized Senior Python Engineer to design and build scalable backend platforms, automation frameworks, and distributed systems within a cloud-native environment. This role requires deep expertise in Python development, microservices architecture, API engineering, and high-performance data processing.The ideal candidate will have strong experience developing enterprise-grade applications, building scalable services, and working across modern DevOps and cloud ecosystems.Key ResponsibilitiesDesign and develop scalable backend applications and distributed systems using PythonBuild high-performance RESTful and asynchronous APIsDevelop microservices and event-driven architecturesOptimize application performance, concurrency, and scalabilityCollaborate...

AVP / VP - Technical Systems Analyst (Risk / ESG Data Platform)

Added 05/05/2026

We are hiring AVP and VP level Technical Systems Analysts for a major ESG and Risk data platform transformation programme with a leading financial services organisation in London.This is a hands-on contract role (Inside IR35) focused on delivering a modern, governed data platform supporting Risk, ESG, and regulatory reporting.What you'll doTranslate Risk & ESG requirements into detailed technical specs (TRDs)Design data models (conceptual, logical, physical) and database structuresDefine data lineage, metadata, and governance frameworksSupport data integration, interfaces, and platform designWork with Risk, ESG, Compliance, Data and Engineering teamsContribute to Agile delivery (user stories, testing, implementation)What we're looking for10+ years' experience...

Systems Analyst Microsoft Dynamics

Added 22/04/2026

Systems Analyst Microsoft DynamicsIn this role, you will: * Support the migration and optimisation of Microsoft Dynamics platforms across the organisation. * Work with business and technical teams to extract, analyse, and interpret data from Dynamics and integrated systems. * Produce performance reporting and insights to support decision making during and after migration. * Act as a key analytical bridge between operational stakeholders, system owners, and delivery partners. * Ensure data quality, integrity, and usability throughout the migration lifecycle.Location: Dublin city centre 1 day + working onsite.6-month contract with the view to become permanent after this period.Job DescriptionResponsibilities of the...

Senior Content Strategist/Designer (UX, AI Content Systems)

Added 17/04/2026

Senior Content Strategist/Designer UX, Product & AI Content Systems We're looking for a senior Content Strategist/Designer to help us take a big step forward in how we create product content.We've recently defined our brand voice. Now we need to bring it to life in the product.This role is about understanding where our current content is working and where it isn't, showing what great looks like in practice, and turning that into a simple, usable system that teams can rely on.A key part of this is making that system work for AI as well as people, so designers can confidently generate...