11 of 11 Permanent Legacy Systems Jobs in Slough

/CD pipelines and developer tooling, while embedding security-by-default, reliability and scalability into the platform. You'll modernise legacy systems, build new backend capabilities, and make pragmatic engineering decisions that balance delivery speed, quality and long-term maintainability. Core Responsibilities Platform Engineering … reliability, scalability, and cost efficiency through automation and platform standards Backend Engineering Own, maintain, and evolve backend services across legacy and greenfield systems Design and implement scalable backend architectures using Node.js, TypeScript, and NestJS Build and operate RESTful APIs and event-driven systems (queues/topics ...

Senior C++ Developer you will design and develop high throughput backend services for microsecond real-time risk, pricing, trading engines and market making systems, working across the full software development lifecycle using Rust (and some C++ for legacy systems). You'll collaborate with a small … talented team, problem solving and working on complex and challenging systems with interesting work. Location/WFH: You'll join the team in Central London with flexibility to work from home 1-2 days a week. About you: You have strong backend OOP, multithreaded software engineering experience with C++ ...

trillion on benefits every year. It's their second-largest cost after payroll — yet the entire category is still running on legacy systems and outdated assumptions. The space is primed for transformation: despite its scale, it's been almost completely overlooked by AI-first startups. Incumbents — including … resident expert. You won't just be tuning hyperparameters in a notebook; you will be a core software engineer architecting the complex systems that make AI useful in production. In the immediate future, your time will be split between crafting complex AI processing architectures (40%) and hands-on data ...

data centres and cloud environments. Key focus areas include: Leading the migration from Nomad to Kubernetes across a hybrid infrastructure environment Designing highly available systems that support real-time trading operations Expanding the firm's cloud footprint (AWS/Azure/GCP) while maintaining on-prem capabilities Owning projects … from design through production What you'll need: Production experience with Kubernetes (EKS/AKS/GKE or bare-metal) Strong Linux systems background; Windows experience is beneficial Track record delivering cloud migrations and managing hybrid environments Experience supporting mission-critical, highly available systems What makes this different ...

/Regulatory Technology team within a leading global investment bank working on business-critical regulatory reporting platforms. You'll help modernise legacy systems and build strategic, cloud-based data solutions used across the firm. You'll work in a collaborative Agile squad focused on Java services, Spark ...

/Regulatory Technology team within a leading global investment bank. You'll work on business-critical regulatory reporting platforms, helping modernise legacy systems and build strategic, cloud-based data solutions used across the firm. You'll be part of a collaborative Agile squad focused on Java services ...

technical depth, gain exposure to DevOps, cloud, and observability practices, and help define how we build software at Firenze. With no legacy systems, you'll be shaping our platform from the ground up and growing alongside a team that values mentorship, learning, and engineering excellence. Key Responsibilities … pipelines) and learn how to scale reliable delivery. Performance & Observability: Gain hands-on experience with monitoring tools and learn how to build observable systems from day one. Documentation & Developer Experience: Help create clear technical docs and reusable tooling that makes development smoother for everyone. Cross-Functional Collaboration: Partner with ...

Lead engineering delivery, infrastructure, and security while partnering with Product, Risk, and Operations. • Design and implement a migration path from legacy custodial systems to vault-native structures. • Champion engineering excellence across quality, reliability, security, and operational discipline. • Build and scale a world-class engineering team with clear … leadership roles. • Proven track record of scaling engineering teams in high-growth B2B, fintech, or infrastructure-led environments. • Strong technical background in cloud-native systems, distributed architectures, and security-critical platforms. • Experience managing parallel systems and executing controlled migrations without client disruption. • Excellent communication skills and ability ...

performance, scalable database solutions. This is a hands-on role for someone who genuinely enjoys writing proper PL/SQL—not just babysitting legacy code. What You’ll Need 10+ years’ commercial experience working with Oracle PL/SQL Strong, clean, and efficient Oracle SQL & PL/… similar fast-paced environment Nice to Have (but not deal-breakers) Performance tuning and query optimisation Experience supporting or refactoring legacy Oracle systems Exposure to modern development practices and version control ...

Spring Boot role. It's for someone comfortable working in pre-annotation Java EE environments. Must-have experience Java EE 1.4/5.0 era systems JBoss 4.x (or WebLogic 8/9, WebSphere 5/6) EJB 2.1 (CMP/BMP, Session Beans, EJB-QL) XDoclet 1.2.x (understanding + … 2.x or XDoclet You've only used modern WildFly/EAP If you've maintained or untangled real legacy Java EE systems, I'd like to hear from you. Message me directly with specific examples of similar work. ...

fields is highly valued. 7+ years of work experience in Machine Learning and AI Engineering roles, preferably building with LLMs and/or Agentic Systems, from development to production. Hands-on experience with LLM frameworks (e.g. langchain, langgraph, llamaindex, langsmith), AI platforms (e.g. Databricks, mlflow) and containerization solutions (e.g. … sprawling without governance, data isn't ready, and talent isn't there yet. Enterprises are still drowning in application backlogs and struggling with legacy systems. But with the right platform, AI doesn't have to add to the chaos. It can become the breakthrough that brings clarity ...