45 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...

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...

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...

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...

We are looking for a senior Architect to lead the design and governance of our Azure AI Factory. You will be the technical authority responsible for building secure, scalable AI solutions-including Generative AI and Agentic workflows-that solve real business problems. Must-Haves Active SC Clearance. Core Responsibilities Translate business requirements into Azure‑native AI solution architectures Design end‑to‑end architectures using Azure OpenAI, Azure AI Search, ML, data platforms, compute, networking, and identity Select and define architecture patterns (RAG, agentic workflows, streaming vs batch, hybrid approaches) Define non‑functional requirements: security, scalability, performance, cost, availability Ensure alignment with Azure best practices, security standards, compliance, and governance Select and validate AI Factory accelerators for suitability and architectural fit Review and approve technical designs before and during execution Guide AI Engineers on design intent,...

Enterprise Data Architect - Oracle Fusion London - 2 days day/week onsite 24 month project We are looking for an experienced Enterprise Data Architect to lead the design, governance, and optimisation of data across their new Oracle Fusion Cloud environment. You will be joining an established organisation who are embarking on a digital transformation. This is a senior, hands‑on role working closely with business stakeholders, functional consultants, and technical teams to shape data strategy and support both transformation and BAU operations. Key Responsibilities: Own the end‑to‑end data architecture for Oracle Fusion Cloud applications Design and govern data models, data flows, and integration patterns across Fusion modules Define and enforce data standards, quality rules, and master data management principles Lead data migration activities including data mapping, cleansing, validation, and reconciliation Provide architectural oversight for integrations using OIC,...

Job Title: Enterprise Architect (Finance, HR & Legal) Location: London (Remote) Salary: £650-£750 per day Type: Contract, Full-Time A market leading client is looking for an Enterprise Architect who has strong experience across Finance, Legal, Procurement and HR Services to help design and implement innovative IT solutions on a global scale. You must have strong strategy and execution experience. You will be responsible for translating business requirements into technical specifications, creating, and maintaining enterprise architecture models and standards, and ensuring alignment and integration of IT systems across the organisation. Responsibilities Key Responsibilities: Design scalable, secure corporate services. Collaborate with teams to deliver robust solutions. experience working in an organisation which is going through a digital transformation Evaluate and recommend platforms, tools, and technologies. Ensure compliance with systems, privacy, and governance...

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...

Job Title: Technical Analyst, Contract: 6 months (possibility of extension) Day Rate: £400-£490 via Umbrella Location: London, Harbour Exchange (hybrid 3 days from office) About the Role We are looking for a Technical Analyst to join a data-driven development team, supporting the delivery of bespoke applications aligned with business and regulatory requirements. You will act as a bridge between business stakeholders and development teams, translating requirements into clear technical specifications and supporting delivery across the full SDLC. About the Client Our client is a leading global financial institution with a strong presence across markets, delivering innovative technology solutions to support complex trading, data and regulatory environments. Key Responsibilities Translate business requirements into technical specifications Work closely with stakeholders, Business Analysts and development teams Manage work items via JIRA and Azure DevOps Support SDLC activities...

Cyber Assurance Lead - Active SC Required Hybrid: 2 days per week into the office We are looking for a Cyber Assurance Lead to provide pragmatic, architecture-led security assurance across a complex and business-critical telecommunications environment. This role will sit across technical delivery, supplier assurance, and governance activity, providing independent cyber assurance input to ensure services, solutions, and supplier submissions meet required security, risk, and control expectations. Experience across telecoms, 5G, device security, or handheld/mobile delivery environments would be highly beneficial. Key Responsibilities Lead cyber assurance activity across relevant workstreams, suppliers, and technical deliveries Provide independent assurance over solution designs, technical architectures, and delivery artefacts Review supplier proposals, technical submissions, and bid responses to assess security suitability, risk, and compliance Support the evaluation of...

C++ Engineer Certain Advantage are hiring for a C++ Engineer based in London. This role is on an initial contract till the end of the year and is hybrid. The company We’re working with an organisation that operates globally, helping power homes, transport, and industries with the energy they depend on every day. The role: Implement solutions using the provided exchange SDKs in different languages such as C++, Rust, Python, Typescript Write software that communicates with exchanges through their APIs, receiving market data and sending orders over the network in different protocols, such as FIX, Websocket or HTTP requests Optimize exchange communication through kernel bypass, optimizing TLS or the connection handling to an exchange Implement trading algorithms based on requirements provided by traders and quants Acquire and develop the necessary trading knowledge to successfully translate the requirements into actual software implementation Continuously improve the...

Senior Backend Engineer (Platform & Cloud) Location: London (Hybrid) Contract: 6–12 months Rate: Negotiable (DOE) We’re working with a global enterprise organisation that is expanding a centralised engineering function supporting multiple product teams across an international portfolio. They’re looking for a Senior Backend Engineer to join a core platform team responsible for building shared services, libraries, and cloud-based functionality used across a wide range of internal products. This is a highly collaborative role, working directly with senior engineers and technical leaders across multiple time zones, helping shape the foundations of how teams build, scale, and reuse backend capability. The Role You’ll be part of a central engineering group building common functionality for distributed product teams. Early work will focus on: Abstracting existing codebases into shared Python libraries Developing data-driven solutions using PySpark and DataFrames Building and...