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Contractor 83
Information Technology Hounslow

83 jobs found in Hounslow

CL
May 16, 2026  
Contract C# Software Engineer
Contract C# Software Engineer Near Wimbledon   6-month contract Software Engineer role developing C# Windows applications that interface with hardware.  This role is inside IR35 and requires on-site work 3 days per week (full time for the first few weeks). C# Software Engineer skills required - Good analytical skills and experience of code and design review for large projects. Experience of multi-threaded and distributed applications, preferably with an understanding network of protocols. Strong Experience in developing Windows desktop applications in C# Interfacing with hardware/physical products .NET environment, Windows Forms, TCP/IP & UDP protocols  Please apply or call for more information
IR35 Status:
Inside IR35

CV-Library Wimbledon, London, UK Contractor
CL
May 23, 2026  
Data Engineer
Overview We are looking for a skilled Data Engineer with strong experience in Snowflake to join our growing data team. You will be responsible for designing, building, and maintaining scalable data pipelines and architectures that support analytics, reporting, and data-driven decision-making across the organization. * 6 months initial contract (OUTSIDE IR35) * Remote with occasional travel into London (1 day per month) Key Responsibilities * Design, develop, and maintain robust data pipelines and ETL/ELT processes * Build and optimize data models within Snowflake for performance and scalability * Ingest data from various sources (APIs, databases, streaming platforms, etc.) * Ensure data quality, integrity, and governance across systems * Collaborate with data analysts, scientists, and business stakeholders to deliver data solutions * Monitor and troubleshoot data workflows and pipeline performance * Implement best practices for data security, privacy,...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 23, 2026  
Senior Software Engineer
Looking for a Senior Java Developer that has worked with Kotlin. The ideal candidate should be passionate about clean code and scalable solutions. This opportunity will allow you to design robust Microservices Architecture, within an automated data-heavy environment. * This will be an initial 6 month contract with possible extensions (OUTSIDE IR35) * Remote with occacional trips to London (1 day per month) Required Skills * Java, Spring, Spring Boot * Experience working with DevOps methodologies and scalable CI/CD pipelines * Microservices Architecture * Exposure to Big Data technologies such as: Kafka, Spark, Hadoop etc * Strong understanding of clean code principles * Experience working with AWS Cloud * Kotlin experience (preferred)
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 23, 2026  
Data Scientist
Product Data Scientist Location: Remote - UK Type of role- 6 Months contract with potential extension Payrate - £498 - £679 Per Day Inside IR35 We're hiring a Data Scientist to join a globally recognised audio streaming platform, supporting their experimentation and analytics ecosystem. This is a fantastic opportunity to work on a high-impact product used to power A/B testing and data-driven decision-making at scale. This role sits within a fast-paced analytics team and is focused on hands-on data analysis, experiment monitoring, and stakeholder reporting rather than machine learning or research work. What you'll be doing: Build and maintain dashboards tracking experiment performance and platform adoption Analyse A/B tests, ensuring data quality, validity, and actionable insights Perform deep-dive and ad-hoc analysis on experiment health and user behaviour Work closely with product, engineering, and data teams to support decision-making Translate complex data into clear,...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
May 23, 2026  
Project Consultant
Project Consultant (Fully remote) About My Client My client is leading the digital transformation of life sciences, with a mission to create hope for millions of patients. The company helps pharmaceutical, bio-tech, medical device, diagnostics companies, and academic researchers accelerate value, minimise risk, and optimise outcomes by providing evidence and insights. With over one million registered users across more than 1,900 customers and partners, the company offers a trusted platform for clinical development, commercial, and real-world data. Your Mission as a Project Consultant, Patient Cloud In this completely remote role, you will be responsible for the overall relationship management of client accounts and day-to-day project activities. Your primary goal is to ensure the delivery of high-quality projects and services on time and within budget by effectively managing company resources. Your key responsibilities will include: Managing a full portfolio of studies...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 23, 2026  
ESG Project Manager
Job Title: Project Manager (ESG Regulatory Disclosure Project) Location: London Duration: 6 months (Highly likely extension) Working Pattern: Full Time About the Role: We are seeking a skilled Project Manager to support the ESG Regulatory Disclosure Project within our client's Operations Planning Department. This role is pivotal in driving our commitment to sustainability and ensuring compliance with evolving regulations affecting the financial services industry. If you have a passion for climate change mitigation and project management expertise, we want to hear from you! Key Responsibilities: Lead the delivery and coordination of the ESG Regulatory Disclosure Project, ensuring alignment with organisational goals. Manage all project lifecycle activities, from initiation to completion, while adhering to quality standards and budget constraints. Facilitate effective stakeholder management, ensuring transparency and governance throughout the project. Collaborate with internal and...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 23, 2026  
Backend Engineer
Senior Backend Engineer (Security Compliance) - 100% Remote The Role Join a high-autonomy team as a senior contractor architecting the next generation of our security compliance platform. You will own technical decisions end-to-end, building systems that ensure every production code change meets regulatory standards across thousands of repositories What You'll Do Architect & Build: Develop Java-based backend services (Spring Boot, Apollo) to enforce compliance controls within a GitHub Enterprise environment. Must have Skillset: Java, Springboot, GCP, GKE Who You Are Expert Developer: Java experience (Spring Boot, Bazel, Maven) with a focus on distributed services and Kubernetes (GKE). System Designer: Strong skills in API design (gRPC, GraphQL, REST) and relational databases like PostgreSQL. Cloud Proficient: Hands-on experience with GCP services, including BigQuery and Cloud SQL. Security Minded: Experience with (or strong interest in) security compliance engineering...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 23, 2026  
OneStream Technology Lead/Developer
OneStream Technology Lead / Developer London - 2-3 days a week - Rate Negotiable Contract - Initially 6 months with a strong chance of extension We are seeking an experienced OneStream Technology Lead / Developer to take ownership of the design, development, and ongoing support of OneStream solutions across planning, consolidation, reporting, and analytics. This is a hands-on technical leadership role, working closely with Finance and IT to deliver scalable, well-governed financial solutions. What you'll do Lead the design, build, and support of OneStream applications across budgeting, forecasting, consolidation, and reporting Translate business requirements into robust technical designs and solution architecture Develop business rules, XF scripts, and complex custom calculations Design and optimize OneStream cubes, dimensions, workflows, and security models Build and enhance reports, dashboards, and analytic views Support and maintain data integrations, APIs, and connectors...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 23, 2026  
Intact Insurance Testing Specialist
Role Title: Testing Specialist Start Date: Early May End Date: 30th November2026 Rate: £435 Location: London N# of Days onsite P/W: 3 N# of Seats Available: 1 JD - Infrastructure / Technical skills Strong Nutanix NC2 / AOS / AHV knowledge (Prism Central/Element, LCM upgrades) Solid VM lifecycle understanding (create/start/stop/delete, snapshot, clone, templates) Networking: VPCs, VLANs/subnets, east-west connectivity, micro?segmentation (Nutanix Flow, NSX DFW concepts) DR & resilience: Nutanix Leap, replication, planned/unplanned failover, failback, RPO/RTO, subset failover Security: RBAC, AD/Entra ID integration, encryption at rest, network security policies, CyberArk, SIEM (Sentinel/Defender) Ops tooling: monitoring and alerting in Prism/x?play, Cohesity backups, alert forwarding into tools like OpsRamp Migration: Nutanix Move from ESX, restore from backup Testing / QA leadership skills Test strategy and planning for infra/DR/security/ops Ability to define/own...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 23, 2026  
Information Governance Specialist (M365)
Role: Senior Information Manager / M365 Information Governance Specialist Contract length: 12 months Day rate: £650 - £675 Location: Remote, with occasional travel to London as required IR35: In scope Security clearance: BPSS This role sits on a major M365 programme focused on implementing information and security controls to manage the corporate record effectively within M365. It would suit someone who understands information and records management in depth and can translate those principles into practical, workable solutions across tools like SharePoint, Teams and OneDrive. Where you will add value Act as the subject matter expert for information and records controls within M365 - from discovery and design through to implementation and assurance. Lead the design of information lifecycle mechanisms, including retention schedules and record labelling strategies aligned with policy, legislation and risk appetite. Define clear, implementable information governance...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
May 23, 2026  
ML Lead - London, UK
Role: ML Lead Type: 12 Months Contract Location: London, UK Working Model: Hybrid (2 days per week in office) Payrate: (Apply online only) GBP/day on Inside IR35 on Umbrella The Role: We are seeking an ML Lead to manage our team and spearhead the design and deployment of cutting-edge Agentic Systems and LLM applications. Key Responsibilities: Team Leadership: Manage the ML team and collaborate with data scientists, software engineers, and business stakeholders. LLM & Agent Development: Build autonomous AI agents, implement Retrieval-Augmented Generation (RAG) pipelines, and fine-tune LLMs using PEFT techniques like LoRA. Data Engineering: Design and maintain robust ETL/ELT pipelines to process structured and unstructured data. MLOps & Infrastructure: Automate CI/CD pipelines, manage cloud/container infrastructure (Docker, Kubernetes), and oversee secure model deployment and performance monitoring. Responsible AI: Build trustworthy AI systems with quantifiable metrics...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
May 23, 2026  
Data Scientist
Job Title: Data Scientist (Generative AI & LLMs) Location: London(Hybrid role) Employment Type: 12 months contract Role Overview We are seeking a versatile Data Scientist to lead the end-to-end development of AI solutions, with a heavy focus on Generative AI and Large Language Models (LLMs). You will bridge the gap between business requirements and technical execution, overseeing the entire lifecycle from initial scoping and data engineering to model deployment and prompt optimization. Key Responsibilities Business Alignment: Partner with stakeholders to define project scope, translate business problems into technical specs, and establish clear KPIs. Data Architecture: Design robust pipelines for data collection, cleaning, and preprocessing to ensure high-quality inputs for ML models. Model Development: Select and train appropriate architectures (BERT, GPT, etc.) using supervised, unsupervised, or reinforcement learning strategies. Prompt Engineering: Design, test, and...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 23, 2026  
Senior Developer
Role: Senior Developer Salary: £70,000 Location: Remote with occasional travel to the offices About the role This is an exciting opportunity for a highly motivated and skilled Full Stack Developer to join a dynamic team working on a greenfield project. The primary focus of this role will be on developing robust and scalable back-end solutions using C# .NET Core, playing a key part in building the foundational infrastructure of a new system. While the emphasis is on the back end, the successful candidate will also contribute to the front-end development using React and Tailwind CSS, requiring a good understanding of the full technology stack. This role offers the chance to be involved in an exciting project which excites our customers, working within an agile Scrum environment. Requirements: Technical: Proven experience in C# Experience using PostreSQL/MSSQL + Entity Framework Core Solid experience of secure coding standards, and what this means in .NET Solid understanding...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 22, 2026  
Senior Full Stack Engineer
Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job Title: Senior Full Stack Engineer Location: London 4-5 days in office Contract: 12 months contract Rate: £100 per hours inside umbrella As a senior full stack engineer you will be instrumental in designing and developing web font-ends and back-end services for a new platform built to automate the management of the full lifecycle of complex private assets. Your expertise is expected to be pivotal in ensuring usability, scalability, performance and resilience of this high-profile platform. Job Responsibilities: * Collaborate closely with cross-functional team, including...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 22, 2026  
SAP CPI Developer
SAP Developer Location: London- 3 days on site in either Sunbury or Canary Wharf Duration: 6 Months + Umbrella only Are you a talented SAP Developer with a passion for integration and middleware solutions? Our client, a leading organisation in the energy sector, is hiring for a reputable company in London. This is an exciting opportunity to work on a high-profile project, supporting SAP Asset Management and integration builds. What you'll be doing: * Developing and building integrations between SAP Plant Maintenance and connected applications * Utilising SAP Cloud Platform Integration (CPI) and other middleware tools to streamline processes * Collaborating with cross-functional teams to understand SAP dependencies and data migration needs * Ensuring seamless data flow and integration across SAP modules and external systems * Supporting ongoing system enhancements and troubleshooting integration issues What you'll bring: * Proven experience in SAP integration build,...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 22, 2026  
SAP Asset Management Solution Architect
Job Title: SAP Asset Management Solution Architect Contract: 6 months (with possibility of extension) Location: London (Hybrid) Overview We are seeking an experienced SAP Asset Management Solution Architect to join a high-profile programme within the Oil & Gas sector. This role will play a critical part in designing and delivering robust SAP Asset Management solutions, with a strong emphasis on data migration and system integration across connected applications. Key Responsibilities Lead the end-to-end solution architecture for SAP Asset Management (SAP PM / EAM), ensuring alignment with business and technical requirements Design, oversee, and support the migration of master and transactional data, ensuring data integrity and governance best practices Define and deliver scalable integration architectures between SAP and connected applications (e.g., third-party systems, digital platforms) Provide hands-on leadership across design, build, test, and deployment phases...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 22, 2026  
IT Operations Manager
IT Operations Manager (Mass Onboarding Project) - £500 - £600 Per Day – 6 Months – EdTech – Stratford, London (Onsite)   Overview: A market leader in the EdTech space are searching for an experienced Onboarding & IT Operations Manager to join one of their growing teams in London. This individual will be responsible for the onboarding of circa 150 resources by November. They will assist with hands on onboarding (2nd – 3rd Line) but also be responsible for service and process mapping across the business.   Role & Responsibilities: The Onboarding & IT Operations Manager acts as the key link between Digital & Technology teams, suppliers, and business operations. End–to–end Joiner–Mover–Leaver (JML) and onboarding coordination, ensuring all onboarding, access provisioning and readiness steps are executed consistently across the programme. Local IT service coordination and operational delivery, ensuring that all in–country technology services meet business standards, key...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 22, 2026  
Automation Software Engineer - Power Automate - £650/day 6mths
We're looking for an Automation Software Engineer with strong Power Automate experience, supported by .NET and scripting, to deliver and mature automation across IT service management and operational workflows. Contract: 6 months Rate: £650/day (Inside IR35) Location: London (weekly for first 2 weeks, then monthly) What you'll be doing Building and orchestrating automations using Power Automate (core skill) Working with stand‑alone APIs and small structured datasets (CSV, JSON, spreadsheets) Automating ITSM processes, checklists, and onboarding (JML) Consolidating data into Azure DevOps dashboards Supporting ServiceNow CI/CD integrations (read-only) Delivering PoCs Creating clear documentation, strategy, and a future automation backlogWhat we're looking for Strong hands‑on Power Automate experience .NET development background PowerShell or Python scripting API orchestration experience Familiarity with Azure DevOps and ITSM environments AI Automation experience Able to work...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
May 22, 2026  
Data Engineer (Spark/ Kubernetes) (Financial Services)
Your new company Working for a renowned financial services organisation Your new role We are seeking a Data Engineer to support the replacement of a legacy ETL tool with a modern Apache Spark based data platform. This is a hands‑on engineering role focused on building and supporting Spark jobs, with an emphasis on performance, reliability, and scalability. The role is focused on building nonperformance Apache Spark jobs, with a strong emphasis on performance optimisation. Working in containerised environments using Kubernetes is a key element also as well as experience across Python/ Scala and Java. The role sits within a small Agile delivery team of four engineers (two onshore and two in Shenzhen), working closely with a Senior Data Engineer. You will be responsible for development work, sprint delivery, demos, documentation, and stakeholder engagement. This position suits a mid to senior level engineer with strong Spark development experience rather than design,...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 22, 2026  
Compute Lead
Job title: Compute Lead Contract: 3 months rolling Location: London (Hybrid) Inside IR35 Job description As the Compute & Cloud Leader, you will be responsible for the operation, stability, and optimisation of enterprise compute platforms, spanning Cloud (primarily Azure), Linux, AIX, Windows, VMware, and Red Hat environments. You will lead a team of outsourced specialists to ensure compute services are secure, resilient, and scalable, while driving automation and lifecycle management in line with industry best practices. This role requires strong technical leadership, operational discipline, and a focus on service reliability. Key Responsibilities * Lead day-to-day operations of enterprise compute platforms (Cloud (Azure), Linux, AIX, Windows, VMware, Red Hat). * Ensure compliance with patching, security, and configuration standards across all compute environments. * Manage lifecycle activities, including End-of-Life (EoX) planning, upgrades, and migrations. *...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
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