81 jobs found in Harrow

Manual Tester** (Contract) Duration: 12 Months Possibility for extension) Location: Watford/Hybrid (2 days per week on site) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Overview We are looking for an experienced Manual Tester to come in on a 12-month contract working on several key projects. You will be a key member of the test team working to agreed approaches and guideline, working on various test phases (functional through to staging). Key Responsibilities: Involvement in all test activities (reviewing designs, estimates, testing, bug re-testing, etc.) Manual testing of web-based applications ensuring coverage meets agreed standards. Preparing test data and test documentation (test plans/test scripts) as required. Comfortable with cross-browser/platform testing on both actual devices and simulations. Supporting Development team to log, reproduce, and re-test bug fixes. Pro-actively working with various disciplines including...

Our client is seeking an IT Site Support Analyst to support their Commercial business unit within a dynamic trading environment. This role involves delivering front-line IT support across desktop infrastructure and business-critical applications, while working closely with commercial teams to ensure systems are optimised and aligned with business needs. Key Responsibilities: Provide desktop and application support to business users Support trading systems and associated applications Act as a liaison between IT teams and business stakeholders Support system upgrades, testing, and deployments Troubleshoot and resolve technical issues end-to-end Requirements: Experience in IT support Strong troubleshooting and analytical skills Experience with Microsoft Office and Windows environments Exposure to trading or enterprise applications (desirable) Strong communication skills with the ability to engage senior stakeholders This is an excellent opportunity to work within a...

Applications Developer - Defence Client Location: Remote Contract Length: 6 Months Clearance: The ideal candidate will hold active SC clearance Day Rate: £525 Inside IR35 About the Role A leading Defence Client is seeking an experienced Applications Developer to support a high‑profile, secure programme. This role involves delivering robust application development within a sensitive defence environment. Key Responsibilities Develop, enhance, and maintain application components according to project requirements. Build, test, and deploy APIs and data integrations. Contribute to containerised deployment processes in secure environments. Work collaboratively with cross‑functional technical teams to ensure scalable and secure solutions. Troubleshoot and resolve application and integration issues. Support Azure‑based application hosting and associated services. Essential Skills & Experience Candidates must have experience with: Python SQL JSON API development (WebMethods,...

Full Stack Developer (Python / React) - SC Cleared Location: Remote (UK) Rate: Up to £525 per day (Umbrella only) Clearance: Active SC Clearance required Sector: Public Sector IR35 Status: Inside IR35 (PAYE via Umbrella) The Role We are seeking an experienced Full Stack Developer to support proof-of-concept development within a secure public sector environment. This is a fully remote opportunity working on modern application server technologies, contributing to rapid development and validation of technical solutions. Key Responsibilities Develop proof-of-concept applications Deliver full stack development across front-end and back-end components Build responsive user interfaces using React Develop back-end functionality using Python Manage code repositories using Git Work with SQL databases Collaborate within an agile technical team Required Skills & Experience Strong Python development experience Front-end development experience with React Experience using Git for...

Java 8 Software Engineer | £500 – £550 | Inside IR35 | 6 Months | Hybrid Remote   We’re recruiting for experienced Java Engineers with strong experience working with Legacy Java versions (Ideally Java 8). This 6-Month contract is determined as Inside IR35 and is offered on a Hybrid remote basis requiring 1/2 days per week of onsite work in Swindon or London.   Key Requirements Strong commercial experience with Java 8 or similar legacy Java frameworks Solid skills in SQL, Spring Boot, and Hibernate development practices Proven ability to build microservices and reliable RESTful APIs Hands‑on experience applying TDD and BDD testing approaches Good understanding of clean coding principles, SOLID, and cloud technologies Previous experience in the Finance/Fintech Industry is beneficial Key Responsibilities Design, implement, and thoroughly test new enhancements across the platform Lead feature development from initial concept through to final delivery Produce high‑quality software...

Job Title: Process Transformation Project Manager Location: London/hybrid Contract: 9 months Rate: £426.15 per day inside ir35 The Role An opportunity to join a Global Interactive Entertainment company and play a key role in driving high-impact transformation and leading initiatives that bridge customer service, logistics, and technology operations across a dynamic, global environment. You will be responsible for driving business transformation and process improvement initiatives, working at the intersection of customer services, operational logistics, and technology delivery. This role requires the ability to define current ("as-is") operations, design future ("to-be") processes, and ensure smooth implementation across all stakeholders - from the business teams to technical providers. You will: Lead projects that enhance operational efficiency, streamline workflows, and improve customer service outcomes. Collaborate with cross-functional teams, including IT, logistics,...

My client in Greater London are looking to appoint a talented IT Security Manager on a Contract basis. As the strategic lead for technology security, you will be responsible for safeguarding the council's IT applications and digital services. Working across the council and with external partners, you will provide expert guidance on security risk, data privacy, and governance. You will also evaluate new technologies, suppliers, and projects to ensure robust security standards are embedded from the outset. What's on offer: Salary: £600 per day, Inside IR35*negotiable based on experience *please submit your CV with the rate you require Hybrid working Contract type: Contract Monday - Friday About the role: Based in Greater London (Hybrid): Lead the development and delivery of the Council's IT Security Strategy, establishing a clear roadmap for continuous improvement Ensure the security of IT operations and infrastructure through monitoring, alerting, and log analysis Develop...

Cybersecurity Engineer / Analyst – London Overview I’m currently supporting a growing organisation looking to hire a Cybersecurity Engineer / Analyst to join their expanding security team in London. Working closely with the Technical CISO function, this role supports the design, implementation, and continuous improvement of cybersecurity controls across cloud, on-premises, and hybrid environments. It’s a great opportunity for someone with around 3+ years’ cybersecurity experience looking to broaden their exposure across engineering, security operations, and platform security in a collaborative environment. Responsibilities • Support deployment and configuration of security controls across cloud, on-prem, and hybrid platforms • Assist with monitoring, investigation, and response to security events and incidents • Work closely with engineering and platform teams to embed secure-by-design principles • Contribute to improvements across security tooling, controls, and operational...

PLM Solution Architect Lead Duration- June 2026 for 9 Months Location - Hybrid - Bristol / London 1-2 days on-site Market Rate- Umbrella Only Are you at your best when driving high-profile topics while using humility to recognise your limitations, engaging others to achieve effective resolution? Are you energised by applying your curiosity to seek out and drive challenging topics? Do you thrive in an environment where you will need to bring clarity and strategic awareness to break through complexity and uncertainty? Above all, are you passionate about helping Britain achieve Net Zero? If so, join us as the Plant Lifecycle Management (PLM) - Solution Architect Lead and you'll join one of the most exciting and ambitious projects in the UK. Job Purpose / Overview At the heart of the data-centric approach being taken on our client will be a robust and easy to use PLM tool based on Dassault System 3Dx platform, supporting configuration management, implementation of business...

IDAM Back-end Java Developer - SC Cleared Rate: £500 - £535 a day IR35: Inside IR35 Location: Remote within the UK Duration: Initially 6 months Clearance: Active SC Clearance required You will join a global IT consultancy who are delivering digital transformation to public sector body. They are looking for a back-end Java Developer with proven IDAM (Identity and Access Management) experience. You will be part of a continuous improvement squad delivering enhancements and new features alongside BAU work (i.e. incidents and support maintenance activities). In addition, you will be involved in helping our client transform their IDAM service, re-platforming to Azure Kubernetes Service. You will have a solid understanding of modern deployment pipelines and DevOps principles. The role will require providing out of hours support (i.e. Monday to Saturday once per month). As a Senior Software Engineer with a focus on back-end development, you will play a key role in designing,...

Java Developer - IDAM/ IDM SME - SC Cleared - £550 - £650 per day - remote with occasional travel Developer - IDAM/IAM SME SC Cleared - £550 - £650 per day We are looking for a Developer with very strong and proven IDAM (Identity and Access Management) experience for a large Government client. You will be part of a continuous improvement squad delivering enhancements and new features alongside BAU work (i.e. incidents and support maintenance activities). In addition, you will be involved in helping our client transform their IDAM service, re-platforming to Azure Kubernetes Service. You will have a solid understanding of modern deployment pipelines and DevOps principles. The role will require providing out of hours support (i.e. Monday to Saturday once per month). Java Developer - IDAM/ IDM experience - SC Cleared - £500 - £600 per day - remote with occasional travel As a Senior Software Engineer with a focus on back-end development, you will play a key role in designing,...

Job Description: Technology Manager Duration: 12 Months| Hybrid: Tue , Wed ,Thu In-Office |Location: London | Start: ASAP The Mission We aren't just building products; we're scaling them. As our Technology Manager, you are the "engine room" of the product lifecycle. You'll take raw concepts and pilots and drive them through to wide-scale deployment. This is a role for a hybrid thinker-someone who speaks "Systems Architecture" as fluently as "Business Strategy." The Execution Architect the Lifecycle: Own the end-to-end journey of internal tools-from validating PRDs to navigating the complexities of the Product Development Lifecycle (PDLC). Solve the Puzzle: Apply systems design and database knowledge to resolve technical bottlenecks and ensure integrations actually work. Automate & Elevate: Spot manual operational gaps and engineer technical solutions to eliminate human error. Influence the Map: Use data-driven metrics to pitch feature improvements and advocate for the user...

Java Messaging Engineer | eBond Trading Platform We are seeking a high-caliber Java Backend Developer to join the Booking & Messaging cell of a global electronic trading platform. This role is at the heart of the "eBond" ecosystem, managing high-throughput trade flows and external venue connectivity. Your Technical Arsenal Core Java Mastery: Expert-level Java (8+) with a focus on Multithreading, Concurrency, and Asynchronous processing. Reactive Systems: Hands-on experience with Functional Reactive Programming (RxJava, Java 9 Flow API, or similar). Low Latency Messaging: Deep understanding of 60East AMPS, Kafka, or Solace. You should be comfortable with Pub/Sub, Point-to-Point, and durable subscriptions. Middleware & Networking: Expertise in socket programming and optimizing low-latency network communication. Modern Stack: Spring IoC/MVC, SQL (Sybase/PostgreSQL), and a solid grasp of Linux internals.Rate: £625 per day (Umbrella / Inside IR35) Location: London (Hybrid)...

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: Data Integration Engineer Contract: Initial 6-Month Contract with potential to extend. Location: London (5 days in office) Rate: £650 - £700 inside umbrella Knowledge required: In-depth understanding of Data and Integration. In-depth understanding of PL/SQL and TSQL Good understanding on data quality, security, compliance requirementsExperience required: Solid hands-on experience with SQL Server & Oracle databases. Solid hands-on experience with Data Stage ETL tool. Proficiency in SQL, ETL tools, data modelling tools, creating data marts and various data integrations...

AWS Data Engineer (Contract, Hybrid, London - Delivery-focused)  Opus are looking for a highly experienced Data SME with strong AWS expertise to support a long‑term cloud data transformation programme. The role will act as the key technical link between client stakeholders and offshore delivery teams, driving delivery of a modern, scalable data platform. Responsibilities: Lead client engagement, run agile ceremonies, and provide technical leadership. Own delivery end to end, managing risks, progress, and scaling activities. Review data architectures and solutions in line with AWS best practices. Coordinate and align offshore teams to ensure consistent delivery. Maintain governance, security, and engineering standards throughout.Skills Required: Deep hands‑on experience with AWS data services (Glue, Redshift, Lambda, Spark, Delta Lake) Strong data engineering and architecture background (ETL/ELT, Lakehouse, MDM). Proven offshore delivery leadership and stakeholder management....

AWS DevOps Engineer +6 months + +Fully remote working +SC cleared - must hold current active clearance +Sole British nationals only - due to nature of the project Skills: +AWS +DevOps Engineer +Kubernetes +Public Sector experience +Testing experience - can set the Testing process up from beginning to end and to be able to own it We're looking for an experienced AWS DevOps Engineer to design, build, and optimise secure, scalable cloud environments in a fully remote role. Key Responsibilities Deliver Infrastructure as Code using Terraform, CloudFormation, or Ansible Build and manage containerised environments with Docker and Kubernetes Architect and optimise AWS services across compute, networking, storage, and security Design and maintain CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions, CircleCI) Automates testing, integration, and deployment processes. Embed DevSecOps practices using tools such as SonarQube, Snyk, and OWASP Implement monitoring and logging...

Role- Data Scientist Location: London, UK Type of job : Contract Work mode : Hybrid- 2 days onsite in a week Responsibilities: * Explore, clean, and analyse large, complex datasets to uncover patterns, trends, and opportunities that drive actionable insights. * Develop, train, and validate machine learning, statistical, and predictive models that solve real business problems and deliver measurable impact. * Design and run experiments (A/B tests, hypothesis tests, simulations) to evaluate ideas, quantify outcomes, and guide decision‑making. * Collaborate with data engineers, analysts, product managers, and domain experts to translate business requirements into well‑defined modelling tasks. * Build end‑to‑end ML pipelines—from feature engineering and preprocessing to deployment‑ready model outputs. * Apply advanced techniques such as NLP, time‑series forecasting, anomaly detection, optimisation, or LLM/GenAI methods where relevant. * Implement model...

We're supporting a large multinational IT Consultancy who is seeking a Workday Specialist for a 7 month contract working on a hybrid working basis from the company's London offices. This is a fantastic opportunity to be surrounded by a talented team. You will design, configure, and improve the company's Workday system while working closely with teams across the business to deliver projects on time and to a high standard. What you'll do: Configure Workday modules to meet business needs Define project scope, objectives, and success criteria in collaboration with stakeholders. Lead cross-functional collaboration to ensure alignment and accountability Manage project timelines, budgets, and delivery Identify risks and keep projects on track Implementation of effective unit testing practices to ensure proper code design, readability, and reliability. About you: * You will have experience with end-to-end Workday implementations ideally in a large matrixed organisation * Strong...

Role - Technical Systems Analyst (ECB Onboarding, Risk / ESG) Duration - 6 months with very likely extension Location - Hybrid / Liverpool Street (London) - 50% of the month in a Liverpool Street office Rate - £500 - £890 per day Role - Technical Systems Analyst to support the analysis and implementation of a new data platform with focus on Risk and ESG. The ideal candidate will bring experience in business/systems analysis, preferably within banking or financial services, with strong capabilities in technical requirements gathering, data architecture, and database‑related design. Responsibilities Contribute to the technical implementation of a solution to address ESG reporting needs. Gather, analyse, and document technical and non-functional requirements, translating system constraints and architectural needs into detailed Technical Requirements Documents (TRDs) or equivalent specifications. Work closely with Business, Data Governance and IT delivery teams to support...

Solutions Architect - Tier Bank - Canary Wharf - 2 Stage interview process - ASAP start Role - Solutions Architect Duration - 6 months with very likely extension Location - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf office Rate - £515 per day (Inside IR35) Experience - In depth understanding of Object Orientated programming concepts as well as of the full Software Development Life Cycle. Good understanding of MS .NET Framework environments. Knowledge and experience of Agile methodology Knowledge of Cloud and AI technologies that can be adopted into the workplace Extensive experience working as a software and solutions architect. Experience in designing of high-level concepts for software solutions. Experience in development of Azure cloud-based as well as on-prem solutions. DevOps and SCRUM experience Experience in Cloud migration planning and executionTasks - Create and improve architectural standards for on premise and azure cloud software products,...