GCS Recruitment
Open positions
Senior Fullstack Engineer x2
Six-month contract (inside IR35, £450/day) via GCS Recruitment for an established energy company: build scalable React/TypeScript front-ends with Python, deployed on Azure and integrated with LLM-based and agentic AI services. Hybrid, 2 days a week in London.
Full Stack Engineer - Front End - AI
Senior fullstack developer role in London building scalable, high-performance React front-ends that integrate AI/LLM and agentic services, deployed to Microsoft Azure (AWS acceptable) using Docker and CI/CD. You'll collaborate with backend, cloud, and AI teams on apps handling large data volumes.
Senior Data Engineer
12-month hybrid contract in Dublin building and maintaining ETL/data pipelines into centralised data platforms for a large, regulated organisation. Core stack: PySpark/Spark, SQL (SQL Server), Azure Databricks, Snowflake, and orchestration with Azure Data Factory or Airflow, plus data governance and CI/CD.
DevOps Engineer
Staff Engineer (11-Month Fixed Term Contract) Dublin City Centre (2 days onsite) Salary: up to €119K + 25 Annual leave days + paid public holidays (all pro-rated for 11-months) (Sponsorship is not provided for this…
Senior AWS Cloud Engineer — Hybrid, Cloud-Native & DevOps
Senior AWS Cloud Application Engineer on a long-term hybrid contract, embedded with a major financial services client's cloud transformation programme. Day to day: defining AWS standards and guardrails, supporting app modernisation and cloud migration, and coaching delivery teams on cloud-native architecture, Step Functions and CI/CD.
Senior DevOps Engineer: AI-Powered Tooling & Azure Cloud
Senior DevOps Engineer (hired via GCS Recruitment, employer unnamed) to lead enterprise DevOps and AI-assisted engineering platforms: automation, CI/CD, Kubernetes and Azure cloud infrastructure, plus developer tooling — introducing AI coding tools like GitHub Copilot and Claude Code across delivery, testing, quality and operations.
Senior Azure DevOps Engineer - DevOps & AI Tooling
Senior DevOps Engineer leading enterprise DevOps and AI-assisted engineering platforms: driving automation, CI/CD, Kubernetes, cloud infrastructure and developer tooling, while introducing AI tools like GitHub Copilot and Claude Code into software delivery, testing and operations. Hired via GCS Recruitment in the UK.
Java Developer - Neo4j & Microservices (6-Month Contract)
Six-month contract Java developer placed by GCS Recruitment into a bank's DevX Standards and Controls team, re-platforming a controls-compliance app from PCF to an internal BYOC platform. Day to day: building Java 11+ microservices and REST APIs with Neo4j/PostgreSQL, dependency upgrades, and light Angular front-end work.
Java Developer (with Neo4J)
6-month contract Java developer working for a bank's Developer Experience team, building a platform for managing software development compliance controls and re-platforming an app from PCF to an internal BYOC platform. Core stack: Java 11+, Angular, REST APIs, Neo4j, PostgreSQL and Maven.
Java Developer
Java developer on a Developer Experience (DevX) team building a platform for managing software development compliance, focused on re-platforming an app from Pivotal Cloud Foundry to an internal BYOC platform and modernising legacy code. Day to day: Java 11+ back-end microservices and REST APIs with some Angular front-end, using PostgreSQL/Neo4j, Maven, and agile CI/CD tooling.
Python Developer (DevOps Experience mandatory)
Owns and evolves a Jenkins shared library powering multi-language CI/CD builds, using Python and Groovy to deliver secure, provenance-rich pipelines with SLSA provenance, SBOMs, and aggregated security scans. Core stack: Python, Jenkins/Groovy, Maven/NPM, Helm, Terraform, SonarQube and Sonatype IQ.
AWS DevOps Engineer: Cloud, IaC & CI/CD Automation
GCS Recruitment is seeking an experienced AWS DevOps Engineer to join an enterprise engineering team within a leading global financial services organisation in Sheffield. The role focuses on large-scale AWS…
AWS DevOps Engineer
Inside-IR35 contract AWS DevOps Engineer joining an enterprise engineering team at a global financial services organisation, hybrid with 2 days onsite in Sheffield. Day to day: building and securing large-scale AWS infrastructure using Terraform IaC, CI/CD pipelines, and Python/Golang automation for cloud-native services.
DevOps Engineer - Hybrid, Azure CI/CD & Automation
DevOps Engineer automating CI/CD pipelines, Azure cloud and on-prem deployments, and Python tooling integrated with Ansible Automation Platform for a leading financial services organisation in Amsterdam. Includes automating network devices and VMware environments in a hybrid setup (2 days onsite).
Senior DevOps Engineer
Senior DevOps Engineer joining an observability team at an energy-sector client in Amersfoort (hybrid, 1-2 days onsite), building and evolving a cloud-native observability platform on AWS and Kubernetes for multiple DevOps teams. 6-month contract with extension option; stack includes Terraform, Helm, GitLab, ArgoCD, Prometheus and Grafana.
DevOps Engineer
A DevOps Engineer building automation for a financial services organisation in Amsterdam: writing Python and Ansible Automation Platform playbooks, developing CI/CD pipelines in Azure DevOps, and automating network devices and VMware for internal platform teams. Hybrid role, 2 days onsite.