Salary: £132,000 - 144,000 per year Requirements: Active NPPV3 and SC Clearance Extensive experience migrating legacy Java (EE/EJB) to modern versions (Spring / Java 11) Proven track record of migrating workloads from Oracle (PL/SQL) to PostgreSQL Comfortable navigating Red Hat Enterprise Linux 8, Oracle Solaris, and Windows Server (2008-2019) Experience with GIS tools including JavaScript/OpenLayers, TileCache, and MapServer Experience leading technical teams through the full software development lifecycle (SDLC) Must be available to start within 1-2 weeks Nice to have: Experience with IBM Initiate (Master Data Management), Nginx, Apache Tomcat, and ETL processes, or exposure to Cognitec FaceVACS, MiniO, or Virtualisation technologies Responsibilities: Lead the strategic migration from on-premise data centres to AWS Transition workloads from Oracle to PostgreSQL Modernize Java EE/EJB environments into Spring microservices Oversee team efforts in comprehensive legacy architecture deconstruction Ensure high-quality delivery throughout the software development lifecycle Technologies: AWS ETL GIS IBM Java Java EE JavaScript Linux Nginx OpenLayers Oracle PostgreSQL SQL Spring Tomcat Windows microservices Cloud Helm Security More: We are a premier global consultancy seeking a Lead Software Engineer to drive a major legacy transformation program for a public sector body. This role offers an exciting opportunity to lead impactful digital transformation initiatives that enhance UK infrastructure. We provide a competitive rate of £550 - £600 per day, with flexibility for remote working in a hybrid model. Join our team and contribute to a prestigious project pipeline that guarantees professional growth and long-term engagement. last updated 6 week of 2026