92 jobs found in London Borough of Barnet

Position: Oracle Systems Admin Manager Location: Hornton Street, W8 7NX Start Date: ASAP Contract Duration: 2+ Months Working Hours: 37 hours per week, Monday to Friday, 09:00–17:00 Pay Rate: £389.84 Per Day                                                                                           Job Reference: (phone number removed) Job Responsibilities Lead and manage Oracle systems administration activities within the IT Digital Transformation programme. Ensure system stability, performance, and security across all Oracle environments. Oversee deployment, upgrades, patches, and configuration changes for Oracle applications. Collaborate with IT teams and business stakeholders to support project delivery. Develop and maintain operational documentation, policies, and procedures. Provide guidance and mentoring to junior administrators and technical teams. Monitor system performance, identify issues, and implement solutions proactively. Manage vendor relationships...

Senior Data Engineer – (Tick data, Time-Series; kdb+ / Q ) 3-6 months initially. London 3 days onsite   Are you a Data Engineer with a background in systematic trading who has worked with granular tick market data? Have you built pipelines to allow tick data to be ingested into a time series tech stack utilising kdb+ and Q? If so keep reading!   Certain Advantage are recruiting on behalf of our London based trading client for a Data Engineer to focus on building a scalable data platform for algorithmic trading.   You’ll Identify and implement solutions for Quants and Traders, providing data that will be used to improve strategies performance and produce clients TCA, pre- and post- trade analytics.   Your Project Work: Identify and implement solutions to provide data that will be used to improve strategies performance and produce clients TCA, pre- and post- trade analytics. Work with business Stakeholders to build new and maintain existing real-time and historical data services and...

Data Architect London (Hybrid) 6 Month Contract £500/day (Outside IR35) Data Architect needed with Retail sector and large-scale cloud data platform experience including Databricks, Snowflake and/or BigQuery. 6 Month Rolling Contract. Hybrid Working - 2 days/week remote (WFH) + 3 days/week working from the London office. Start ASAP in March/April 2026. A chance to work with a leading global IT transformation business specialising in large-scale Government projects. Hands-on data architecture experience with 2 or more major cloud data platform implementations (Databricks, Snowflake, BigQuery). Retail industry experience strongly preferred including Retail data domains: Point of Sale (POS), consumer, trade promotion, supply chain, finance. Supporting the end-to-end data architecture life-cycle including: discovery, design + implementation phases. Large-scale data platform modernisation, consolidation + migration programmes experience. In-depth experience in data...

Account Support Specialist - Gaming + Global leader in gaming + 12 month initial contract + 80% hybrid - 20% onsite in ondon + up to £30 per hour Key Skills: + Background in Gaming/Gaming Industry + Knowledge of modern SW + Fluent in Japanese About the Role As an Account Supporter, you'll support PlayStation partners-developers and publishers-by delivering high-quality operational and technical assistance through DevNet and the Help Centre, ensuring they can build, test, and launch smoothly. What You'll Do Support game developers and partners via ticketing systems with fast, accurate solutions Help deliver operational readiness for game releases, updates, and partner milestones Execute SOPs across partner access, dev hardware, releases, support, and live events Maintain and improve knowledge bases used by global developer teams Contribute to developer communications (announcements, forums, bulletins) Support developer events, showcases, and technical conferences...

Third-Party Cyber Risk Manager (Contract) Hybrid 6 months Minimum Start date April We are supporting a large UK enterprise organisation seeking a Third-Party Cyber Risk Manager to lead cyber assurance activities for suppliers and vendors. This role focuses on assessing cyber risk during supplier onboarding and contract renewals, ensuring appropriate security controls are in place before access to systems or data is granted. Key Responsibilities. Conduct cyber risk assessments for new and existing third-party suppliers Perform initial risk tiering based on services, data access, and system access Review supplier security documentation (e.g., ISO 27001, SOC reports) Liaise with suppliers and internal stakeholders to gather assurance evidence Provide risk recommendations and track remediation actions Ensure security requirements are embedded within supplier contracts Work closely with procurement, privacy, legal, and business teams Requirements. Experience in third-party...

Tier 1 Bank - Regulatory Reporting Team Role - IT Compliance and Audit Duration - 6 months with very likely extension Location - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf office Rate - £415 per day (Inside IR35) Role IT Compliance Support Engineer to join a development team and act as the primary liaison with internal/external audit, compliance, and IT security counterparts. This role combines governance with technical capability-supporting audits, demonstrating IT controls, and troubleshooting or coordinating resolution of issues across Azure DevOps pipelines, ServiceNow change management, and Jira requirement workflows. You will help us evidence good practice, reduce audit friction, and improve developer productivity by ensuring our controls are both effective and practical.Tasks Audit & Compliance Liaison Act as the single point of contact for internal/external audit, compliance, and IT security. Handle audit requests, walkthroughs, and create timely...

Global bank based in Canary Wharf. Role - C# Developer - Desktop Applications Duration - 6 months with likely extension Rate - £415 p/d (inside IR35) Location - Hybrid / Canary Wharf Tech Stack C# WPF Winforms SQL OracleTasks Tasks range from understanding business requirements, designing application structures, business data analysis, programming WPF (Windows Presentation Foundation) applications in Visual C#.NET on both Oracle and SQL Server database, testing with users, implementation through Development, Quality Assurance (QA), Production and Disaster Recovery environments. Supporting users and writing operation documents including User Helps (manuals) will also be required. As well as application development, this role will also include all aspects of system constructions and support for existing programmes which are written as WinForms (C#.NET) applications. Also, applications written in other languages like MS VBA for Excel and Access, MS VB and MS Excel Macros will...

Collibra Integration Engineer Role - Hybrid / Canary Wharf - 6 month Contract - Banking Tier 1 Bank - Regulatory Reporting Team Role - Collibra Integration Engineer Duration - 6 months with very likely extension Location - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf office Rate - £415 per day (inside IR35) Tasks Administer and maintain the Collibra platform from an IT engineering perspective, including configuration, health monitoring, troubleshooting, and performance management across EMEA environments. Configure, schedule, and manage integrations using DIP/CDQ, EDGE, and Lineage Harvester, ensuring consistent ingestion of metadata, schemas, and lineage from multiple data sources. Perform connectivity and prerequisite validation with Application teams, ETL teams, and DBAs, including driver installation, credential management, network/firewall requirements and technical onboarding for new data sources. Investigate and resolve incidents related to Collibra...

Java Developer Contract: 12 months Rate: £600 per day (Inside IR35) Location: UK (Remote some days in London, Manchester or Leeds (adhoc) This role sits within a large-scale NHS digital transformation programme delivered via a leading consultancy partner. The programme focuses on modernising critical healthcare systems, improving access to services, and enabling seamless integration across national and local platforms. The work involves building scalable, secure, and interoperable digital services that support high-volume user interactions and integrate with multiple systems across the healthcare ecosystem. The Role As a Java Developer, you will be responsible for designing, building, and maintaining high-quality backend services within a complex, distributed system. You will work closely with product, architecture, and engineering teams to deliver robust, scalable solutions that meet both user and system requirements. Key Responsibilities * Design, develop, and...

AWS Data Engineer | 6m Contract | London, Hybrid - Outside IR35  Daily Rate: £570 per day (Outside) Team: Data Engineering - Application Development Overview: Opus have partnered with a London Financial Services company who're seeking a Senior AWS Data Engineer with a background in Application Development to support in architecting and delivering a new PostgreSQL‑driven data platform which will be used to support core functions across investment reporting, risk analysis, regulatory output, and performance measurement. This is a high‑impact greenfield build. You’ll take full ownership of the platform’s design and lead the transition away from Databricks and Excel-centric processes—shaping critical infrastructure that underpins the organisation’s investment operations. What You’ll Work On You’ll be responsible for designing and developing a scalable, secure PostgreSQL environment capable of supporting: Portfolio valuation and holdings data Performance and attribution reporting...

Security Architect (6 month Contract) - £700 to £800pd (Inside IR35) - London (Hybrid once per week) I am currently looking for a Security Architect to provide senior technical leadership in the design and implementation of secure systems, ensuring security is Embedded into enterprise, cloud, and application architectures.  Key Skills needed Significant experience designing secure enterprise or cloud architectures. Strong knowledge of cloud security (eg, AWS, Azure, or GCP). Experience with security architecture frameworks and threat modelling methodologies. Understanding of identity and access management, network security, and data protection. Ability to advise stakeholders and guide technical teams on security best practices. Desirables - Certifications in: CISSP, SABSA, TOGAF, Cloud security (eg, AWS Security, Azure Security)If interested and feel yourself well suited, please reply with your latest CV and I will be in touch to discuss in more detail

Automation Lead – Infrastructure Automation | Contract | £400–£525 per day (Inside IR35) Location: London or Norwich (Hybrid) We are seeking an experienced Automation Lead to drive infrastructure automation and operational automation initiatives across strategic enterprise accounts. This role will focus on delivering automation roadmaps, improving automation maturity, and implementing scalable solutions across IT operations and infrastructure environments. You will work closely with delivery teams, engineering teams and client stakeholders to design and implement automation strategies that improve efficiency, reduce operational overhead and increase platform reliability. Key Responsibilities * Lead automation strategy and automation roadmap development across multiple enterprise accounts * Implement infrastructure automation and IT operations automation solutions * Identify automation opportunities and drive automation maturity across business units * Work with...

Your new company Working for a globally renowned financial organisation Your new role We are hiring two Senior Data Engineers to support the ongoing development and modernisation of a large‑scale financial data platform. The environment blends long‑established enterprise systems and legacy components with modern cloud services hosted on AWS. The platform processes high‑volume structured datasets and powers a mix of internal business systems and customer‑facing financial products. A major part of the estate consists of large SQL Server environments; therefore, advanced SQL Server expertise is essential. You will take a leading role in modernising core components, improving platform performance and resilience, and building scalable backend and data services as the platform evolves. This role suits engineers who are confident working across legacy and modern stacks, and who bring strong experience in programming/ designing and delivering robust data services and APIs. What...

I am currently working with a London-based Financial Services client who are actively seeking a Senior Java Developer to work on the development of a business-critical application with a range of cutting-edge technologies. What you'll need to succeed: 10+ years' Java Development experience in an enterprise environment, ideally Financial Services. Extensive Springboot, Spring batch, and Spring integration experience. Extensive experience with Oracle and/or Postres - Must Have. Extensive AWS experience with Terraform - Must Have. Strong experience translating requirements from stakeholders into technical solutions. Good working knowledge of Jira. What you'll get in return: Initial 12-month contract with extensions. Up to £740pd Umbrella. 3-days/week on-site in London. What you need to do now: If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new...

Role: SAP Technical Project Manager - Quality & Food Safety (Q&FS) Programme: SAP S/4HANA (Digital Core) | Location: Remote Overview: A senior-level role acting as the bridge between complex SAP technical builds and strict Quality & Food Safety standards. You will autonomously lead the Q&FS workstream, ensuring that external vendor deliverables and technical IT infrastructure perfectly align with global enterprise requirements. Key Responsibilities Project Delivery & Testing: Define project scope, maintain high-fidelity plans, and drive end-to-end Testing & Conformance activities synchronized with the S/4HANA release schedule. Governance & RAID: Rigorously manage and "pressure-test" Risks, Actions, Issues, and Dependencies (RAID) logs, oversee change control, and provide high-impact status reports. Workstream Execution: Lead daily Q&FS sub-workstream operations, manage external SAP Systems Integrators (SIs), and coordinate specific S/4 security...

PMO Analyst - Power BI, Jira, Performance Reporting, RAID Up to £400 per day (Inside IR35 - Umbrella) 6 months London / Hybrid My client is an instantly recognisable firm who require a PMO Analyst with strong Power BI and Jira skills along with exceptional stakeholder management skills (up to Exec / Board level) to provide Portfolio / Programme governance, RAID management, change control and benefits tracking etc. CVs must demonstrate where, how and why you have used Power BI and Jira. Key Requirements: Demonstrable expertise as a PMO Analyst within a large, complex, Enterprise Scale organisation Excellent Reporting skills with the ability to create dashboards and to provide Performance Reporting and capability to use the Data to tell a story for stakeholders, proposing solutions to key stakeholders Strong Power BI (data modelling, measures, DAX, KPI visuals and bookmarks etc) skills Strong Jira (JQL, filters, dashboards, board configuration, workflows, custom fields, schemes...

Azure DevOps Engineer (SC Cleared) Location: London (Hybrid – 3 days onsite / 2 days WFH) Rate: £550–£650/day (Inside IR35) Contract: 6 months Start: March/April 2026 Role Overview Seeking an SC‑cleared Azure DevOps Platform Engineer with strong Azure cloud expertise including Databricks and Data Factory. You’ll support large‑scale government programmes, delivering secure, scalable platform engineering across Azure services. Key Responsibilities Engineer and maintain Azure platform components: Databricks, Data Factory, WebApp Service, API Management/APIOps Build and support core infrastructure using Infrastructure‑as‑Code (Terraform)  Implement and optimise CI/CD pipelines Deliver cloud‑native, containerised solutions using Docker and AKS Improve platform reliability, automation, and developer experiencePreferred Certifications Azure DevOps Engineer Expert Azure Administrator Associate Azure Solutions Architect ExpertRequirements Active SC Security Clearance (mandatory)...

Golang Developer - Software Engineering, Financial Services Up to £700 per day (Inside IR35) London 6 Months My client is an international Consultancy who require a Golang Developer with a proven Software Engineering background to work closely with a high profile Financial Services end client. Key Requirements: Demonstrable experience as a Golang Developer in a large commercial environment Strong Software Development background Proficiency in modern and Agile Software Development practices Ability to create a REST service Good understanding of APIs Ability to thrive in a fast-paced, and high-pressured environment Nice to have: Financial Services industry experience Degree in Computer Science (or related subjects) Python Development skills Immediate availabilityHays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy...

Business Central Developer (Fully Remote) Business Central Developer 12-month FTC | Up to £75,000 | Fully Remote We're working with a growing UK retail organisation, with over 200 stores across the UK and a rapidly expanding digital and eCommerce presence. As part of this programme, they're integrating Microsoft Dynamics 365 Business Central with a modern B2B commerce platform (OroCommerce) to support their expanding online and wholesale operations. They're now looking for a Business Central Developer to help design and deliver integrations between the ERP platform and their eCommerce ecosystem. This is a hands-on development role, working closely with the ERP Lead and Product team, focused on building reliable integrations and extensions to support order management, pricing, and customer workflows. The Role You'll play a key role in building and enhancing integrations between Business Central and a B2B eCommerce platform, ensuring data flows reliably across systems and...

Back End Software Engineer - SC Cleared Contract | Remote (occasional London travel) | £450/day (inside IR35) We're recruiting on behalf of a major government technology programme for a senior software engineer to help design and evolve high-performance, cloud-based systems that support critical public services. This is a hands-on technical role with real influence - you'll contribute to architecture decisions, mentor colleagues, and own complex integrations end-to-end. Working within an Agile squad, you'll lead technical design discussions, manage CI/CD pipelines, and play an active role in incident and change management, all within a modern Azure cloud environment. What you'll need Angular - component architecture and state management Node.js - async programming and API/backend services Azure - designing and managing scalable cloud infrastructure Terraform - infrastructure as code and environment automation Jenkins - CI/CD pipelines and automated testing Git - branching...