• Address

    5th Floor, 4 Coleman Street, London, United Kingdom, EC2R5JJ
  • Website

    uk.gcsrecruitment.com
  • Phone

About us

Founded in London in 1991 specialising strictly in IT, GCS has grown to become a global technology recruitment specialist supplying skilled contract and full-time professionals to some of the world’s most innovative employers.

With offices in London, Reading, Dublin, Austin and New York, GCS was acquired by nGAGE Specialist Recruitment in May 2017. With the backing of nGAGE, we have access to the technology and support structures to take the business to the next level.

We are experts in technology recruitment, with areas of expertise covering:

Web & Application Development
Digital Transformation
BI & Data Analytics
DevOps
Embedded Software
IT Support & Infrastructure
Project Management & Business Analysis
Testing & QA
Enterprise SaaS

Jobs at GCS

Displaying 1 to 20 of 28 jobs

  1. Data Engineer Lead Role - Hybrid - Banking

    Posted today by GCS

    Salary:
    £600 - £700/day Inside IR35
    Location:
    City of London, London
    Job Type:
    Contract

    Data Engineer Lead - Tier 1 Bank - London - 6 months Role - Data Engineer Lead Rate - £700 per day (Inside IR35) Duration - 6 months with very likely extension Location - Hybrid / Liverpool Street - 3 days per week in an office in Liverpool Street (London) Role The Data Engineer Lead is responsible f... more

    Apply Now
  2. C# Developer Role - Hybrid - Banking

    Posted today by GCS

    Salary:
    £600 - £690/day Inside IR35
    Location:
    City of London, London
    Job Type:
    Contract

    C# Developer Role - Hybrid / Liverpool street - 6 month Contract - Banking Role - C# Developer (T/SQL, PL/SQL) Duration - 6 months with very likely extension Location - Hybrid / Liverpool Street (London) - 3 days per week in a Liverpool Street office Rate - £690 per day (Inside IR35) Tech Stack C# S... more

    Apply Now
  3. Mainframe DB2 System Specialist

    Posted yesterday by GCS

    Salary:
    £45,000 - £60,000/annum
    Location:
    Knutsford, Cheshire
    Job Type:
    Permanent

    Mainframe DB2 System Specialist - Knutsford or Glasgow Join our Mainframe Engineering function as a DB2 System Specialist, where you'll take ownership of installing, configuring, and maintaining IBM DB2 systems that power mission‑critical banking platforms. This is a hands‑on, engineering‑focused role for... more

    Apply Now
  4. MongoDB Site Reliability Engineer

    Posted yesterday by GCS

    Salary:
    £45,000 - £60,000/annum
    Location:
    Knutsford, Cheshire
    Job Type:
    Permanent

    MongoDB SRE (AVP) - Knutsford (Hybrid) Are you a MongoDB expert ready to step into a true engineering role? Join a global team modernising a large‑scale database estate and move beyond repetitive DBA work. What You'll Do Own MongoDB operations end‑to‑end (clusters, sharding, replica sets, backups). Tro... more

    Apply Now
  5. Microsoft SQL Database Site Reliability Engineer

    Posted yesterday by GCS

    Salary:
    £45,000 - £60,000/annum
    Location:
    Knutsford, Cheshire
    Job Type:
    Permanent

    Step into a high‑impact engineering role where you'll shape the future of Microsoft SQL operations at enterprise scale. As a Database SRE, you'll combine deep SQL Server expertise with modern SRE practices to build a more reliable, automated, and observable database platform for one of the world's largest ... more

    Apply Now
  6. Azure Site Reliability Engineer

    Posted 5 days ago by GCS

    Salary:
    £50,000 - £60,000/annum
    Location:
    Knutsford, Cheshire
    Job Type:
    Permanent

    Azure Site Reliability Engineer (SRE) Location: Glasgow / Knutsford (Hybrid- 2 days a week in office) Team: 6 UK / 5 India Environment: Part of a wider multi‑cloud engineering organisation (Azure, AWS, GCP) Growth: Significant technical development opportunities across cloud engineering, automation, an... more

    Apply Now
  7. RabbitMQ SME | Sheffield (Hybrid)

    Posted a week ago by GCS

    Salary:
    £600 - £650/day
    Location:
    Sheffield, South Yorkshire
    Job Type:
    Contract

    🚀 One of our leading banking clients is looking for an experienced RabbitMQ SME to join a large-scale PAM & Security transformation programme. 📍 Sheffield, UK (Hybrid) 📅 ASAP Start 📄 Contract until Nov 2026 Key Responsibilities Deploy and manage RabbitMQ clusters Build resilient multi-site messaging sol... more

    Apply Now
  8. Automation Test Engineer - (IAM)

    Posted a week ago by GCS

    Salary:
    £600 - £601/day
    Location:
    Sheffield, South Yorkshire
    Job Type:
    Contract

    Role Summary We are looking for a highly skilled Automation Test engineer with expertise in Identity and Access management (IAM) back-end validation. Skilled in identity orchestration, API testing, data ingestion and transformation, and event-driven (Pub/Sub) architectures. This role focuses on testing... more

    Apply Now
  9. Test Automation Engineer

    Posted a week ago by GCS

    Salary:
    £500 - £501/day
    Location:
    Sheffield, South Yorkshire
    Job Type:
    Contract

    Build and maintain automated test frameworks and suites for API, event-driven, and graph-based services using Python/PyTest. Define and execute test plans, cases, and test data aligned to requirements and technical specifications, ensuring FR/NFR traceability. Validate IAM models (RBAC, ABAC, ReBAC, PBAC) ... more

    Apply Now
  10. Salesforce Technical Architect

    Posted a week ago by GCS

    Salary:
    £100,000 - £120,000/annum pension, bonus etc.
    Location:
    Scotland
    Job Type:
    Permanent

    Are you a motivated Salesforce Solutions Architect who is passionate about Cloud and application architecture? Do you have expert knowledge of Salesforce products and are you looking to get involved at the onset of a new platform and have the chance to really make an impact? Note: This role is based out ... more

    Apply Now
  11. Counterparty Credit Risk QA Lead

    Posted a week ago by GCS

    Salary:
    £600 - £850/day Inside IR35
    Location:
    London
    Job Type:
    Contract

    Counterparty Credit Risk QA Lead - Tier 1 Bank - London - 12 months Role - Counterparty Credit Risk QA Lead Rate - £850 per day (Inside IR35) Duration - 12 months with very likely extension Location - Hybrid / Liverpool Street - 3 days per week in an office in Liverpool Street Role Lead testing activ... more

    Apply Now
  12. C# Developer Role - Hybrid - Banking

    Posted a week ago by GCS

    Salary:
    £600 - £690/day Inside IR35
    Location:
    City of London, London
    Job Type:
    Contract

    C# Developer Role - Hybrid / Liverpool street - 6 month Contract - Banking Role - C# Developer (T/SQL, PL/SQL) Duration - 6 months with very likely extension Location - Hybrid / Liverpool Street (London) - 3 days per week in a Liverpool Street office Rate - £690 per day (Inside IR35) Tech Stack C# S... more

    Apply Now
  13. Data Engineer Lead Role - Hybrid - Banking

    Posted a week ago by GCS

    Salary:
    £600 - £700/day Inside IR35
    Location:
    City of London, London
    Job Type:
    Contract

    Data Engineer Lead - Tier 1 Bank - London - 6 months Role - Data Engineer Lead Rate - £700 per day (Inside IR35) Duration - 6 months with very likely extension Location - Hybrid / Liverpool Street - 3 days per week in an office in Liverpool Street (London) Role The Data Engineer Lead is responsible f... more

    Apply Now
  14. Application Architect - Modernisation project

    Posted a week ago by GCS

    Salary:
    £550 - £750/day Inside IR35
    Location:
    London
    Job Type:
    Contract

    Solutions Architect - Tier Bank - Canary Wharf - 2 Stage interview process - ASAP start Role - Application Architect Duration - 6 months with very likely extension Location - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf office Rate - £750 per day (Inside IR35) Experience - In depth unde... more

    Apply Now
  15. Microsoft Entra Specialist

    Posted 19/05/2026 by GCS

    Salary:
    £45,000 - £55,000/annum
    Location:
    Knutsford, Cheshire
    Job Type:
    Permanent

    Microsoft Entra Specialist - M365 Messaging Administrator (AVP Level) Location: Knutsford, Radbroke Hall Function: Service Management - Global Operations Type: Permanent / Full‑time About the Role We're looking for a Microsoft Entra and M365 Messaging Specialist to join our global Operations team suppor... more

    Apply Now
  16. Global Talent Acquisition Partner

    Posted 19/05/2026 by GCS

    Salary:
    £500 - £550/day
    Location:
    Derby, Derbyshire
    Job Type:
    Contract

    Talent Acquisition Business Partner - Engineering (Global) Location: Derby, UK Reports to: Global Head of Talent Acquisition Operations About the Role This is a strategic, insight‑driven role partnering across three major engineering businesses - Civil, Defence, and Power Systems - to elevate workforc... more

    Apply Now
  17. Developer (IAM) - Project Orbit | 12 Month Contract | London

    Posted 18/05/2026 by GCS

    Salary:
    £600 - £650/day
    Location:
    London
    Job Type:
    Contract

    Join a major global banking transformation programme redefining Identity & Access Management at enterprise scale. We're looking for a hands-on Developer with strong experience in IAM, API development, and event-driven cloud architectures to help build next-generation identity solutions across a complex gl... more

    Apply Now
  18. Data Engineer Lead Role - Hybrid - Banking

    Posted 14/05/2026 by GCS

    Salary:
    £600 - £700/day Inside IR35
    Location:
    City of London, London
    Job Type:
    Contract

    Data Engineer Lead - Tier 1 Bank - London - 6 months Role - Data Engineer Lead Rate - £700 per day (Inside IR35) Duration - 6 months with very likely extension Location - Hybrid / Liverpool Street - 3 days per week in an office in Liverpool Street (London) Role The Data Engineer Lead is responsible f... more

    Apply Now
  19. Application Architect - Modernisation project

    Posted 14/05/2026 by GCS

    Salary:
    £550 - £750/day Inside IR35
    Location:
    London
    Job Type:
    Contract

    Solutions Architect - Tier Bank - Canary Wharf - 2 Stage interview process - ASAP start Role - Application Architect Duration - 6 months with very likely extension Location - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf office Rate - £750 per day (Inside IR35) Experience - In depth unde... more

    Apply Now
  20. Counterparty Credit Risk QA Manager

    Posted 14/05/2026 by GCS

    Salary:
    £600 - £850/day Inside IR35
    Location:
    London
    Job Type:
    Contract

    Counterparty Credit Risk QA Manager - Tier 1 Bank - London - 12 months Role - Counterparty Credit Risk QA Manager Rate - £850 per day (Inside IR35) Duration - 12 months with very likely extension Location - Hybrid / Liverpool Street - 3 days per week in an office in Liverpool Street Role Test Manager... more

    Apply Now