26 to 50 of 269 Legacy Systems Jobs in the UK

forefront of the industry. This is a rare opportunity to be part of the core technical team developing the next generation of systems to form a new foundation for the business. This position requires 3+ years of experience in building, maintaining and troubleshooting SaaS products, ideally using .NET, React … database query optimization in both Oracle SQL and TSQL is highly desirable. A willingness to dive deep into legacy on-prem systems is crucial. Key Responsibilities Build and maintain full-stack systems that run in Azure Cloud environments, both internal and client-facing Create and maintain ...

/ArcGIS) – Contract (Outside IR35) We’re supporting a major UK utilities organisation on a large-scale GIS transformation programme, migrating legacy systems to the ArcGIS platform and ESRI Utility Network model. They’re looking for a Senior Data Engineer with strong FME expertise to support data … Responsibilities Design and build data interfaces into ArcGIS Develop and test FME workflows (Readers, Transformers, Writers) Support data migration from legacy GIS systems Work closely with SMEs and technical teams to validate integrations Assist with ArcGIS data analysis and Utility Network configuration Requirements Strong hands-on experience ...

Legacy technology stacks Own the ongoing evolution of Legacy and modern platforms Drive migration from monolithic Legacy systems to scalable distributed architectures Contribute hands-on to Back End engineering, infrastructure, and platform development Define and execute engineering strategy, roadmap planning, and technical best … engineers through coaching, mentoring, and technical leadership Tech Stack AWS (EC2, ECS, Lambda, S3, SQS, SNS, DynamoDB) Node.js TypeScript PHP Terraform/CloudFormation Distributed Systems & Cloud Infrastructure About You You'll be a strong technical leader who enjoys solving complex engineering challenges while building high-performing teams. ...

Title: Senior Systems Engineer (eDV Clearance required) Location: Hybrid In London Employment Type: Permanent Salary: Up to £98,000 + package Start Date: Immediate Industry: IT Services & Consulting We’re supporting a specialist consultancy delivering cutting-edge programmes across the UK Defence and National Security space. They’re looking … Senior Systems Engineer to lead the delivery of complex, mission-critical systems across secure environments. This is a high-impact role where you’ll bridge strategy and engineering - shaping solutions that integrate cloud, data, and AI technologies into secure, safety-critical systems. Senior Systems Engineer – Key Responsibilities ...

Business & Systems LeadDudley (5 days per week on site)£50,000 to £75,000 per annumPermanent I am currently looking for a Business and Systems Analyst to join a well-established organisation based in Dudley, supporting the transformation of their back-office operations. This role is perfect … thrives on making processes more efficient, enjoys working with data, and is passionate about creating user-friendly solutions that add real value. Business & Systems Lead - What will you be doing? * Collaborating with operational teams to understand current manual processes for capturing performance data and identify opportunities for automation using ...

ownership of the technical foundations of our data platform – from ingestion and infrastructure to deployment – helping us move from legacy, on-premise systems to a modern, cloud-first data architecture. Working closely with the BI & Data Lead and an Analytics Engineer, you’ll be the primary architect … turning fragmented legacy data into a competitive, AI-ready asset. If you enjoy building things from the ground up, modernising complex systems, and shaping how data is used across a business, this role offers real ownership and influence. The Role - Data Engineer Designing a greenfield data platform ...

including future proofing requirements to enable the design, development, testing and continuous improvement of infrastructure using a variety of technologies (including legacy systems) to deliver a robust digital experience . Input into the design of evolving the infrastructure to support a modern hybrid digital workplace. Infrastructure delivery …/Degree in technical discipline or equivalent work experience. Completion of formal training in the administration of voice and data networks, Server Operating Systems, Azure , Data platforms, O365 and Active Directory A degree and/or relevant professional/experience in Business or Computer Science. The postholder is able ...

Senior Systems Integration Consultant (.NET, Azure, Data, MIS) Job Description Contract Length: 3 months Start: Immediate Day Rate: £400-£500 per day IR35: Outside IR35 Location: Hybrid, predominantly remote Overview We are looking for a senior Systems Integration Consultant to step into a live environment and stabilise … ensure the platform is fully operational. Key Responsibilities Stabilise and optimise Mitratech platform integration Extract and migrate data from legacy .NET systems Build and troubleshootintegrations across: Timesheet systems HR workflows including Excel exports Internal operational systems Implement workflow automation and triggers Debug live production issues ...

role focuses on the planning, execution, and management of data migration projects. Data Migration Specialists are responsible for transferring data from legacy systems to new platforms, ensuring accuracy, consistency, and adherence to data integrity standards. Analyse existing data structures and understand business requirements for data migration. Design … MySQL, NoSQL) and cloud platforms to AWS, including cloud-to-cloud scenarios. Develop data ingestion pipelines from SaaS platforms (e.g., CRM, CDP, marketing, finance systems such as Pega, Adobe, and similar tools) using APIs, connectors, or data exports. Build and maintain scalable ETL/ELT pipelines using SQL, Python ...

advanced data pipelines with Python, SQL, Spark/PySpark and Delta Lake. Champion strong data quality, governance and observability practices. Modernise legacy systems and support large-scale migrations into Azure. Provide technical leadership, set engineering standards and contribute to architectural decisions. Mentor engineers and foster a culture ...

volumes of trading data and directly impacts trading performance and decision-making. You will lead a backend engineering squad working on low-latency C++ systems, while helping to modernise a complex legacy platform. A key focus will be improving release cadence and delivery maturity, alongside driving architectural … where needed, contributing to C++ and Python code in production What you will need Strong C++ experience within low-latency or real-time systems Exposure to Python (or willingness to work with it) Experience working on complex, business-critical platforms (ideally within trading or financial systems) Proven ability ...

About the job Senior Software Engineer (Backend/Systems Design) We’re working with a well-established, private equity-backed technology business operating across multiple international markets. The company builds and delivers critical, high-availability systems within sectors that demand reliability, scalability and long-term performance. Following continued … engineering team with a senior hire. This is a senior-level Software Engineer role focused on designing, building and evolving large-scale, high-capacity systems within a complex, distributed environment. The Role Design and build scalable, event-driven and distributed systems Translate product requirements into robust technical solutions ...

focused on building modern, scalable data platforms that power analytics, AI, and operational decision making. You will be working on real world, production grade systems rather than proof of concepts, with clear ownership and visibility across the full data lifecycle. What You’ll Be Doing You will be hands … Python where needed Develop real-time streaming solutions using technologies such as Kafka and Flink Integrate data from multiple sources including APIs, batch systems, and streaming platforms using AWS services like Kinesis, MSK, Lambda, and Glue Contribute to modern data architecture patterns including medallion architecture and event-driven design ...

individuals as all work will require extensive collaboration with engineers and stakeholders across many teams. Key Responsibilities: Collaborate with engineers of legacy systems to understand what data is available and the form it takes Design queries & scripts to extract and transform data from … based workflows, code reviews, and CI/CD practices. Preferred Qualifications: Have used Azure cloud services previously Experience with streaming/event-driven systems e.g., Kafka/Kinesis Experience with infrastructure as code e.g., Terraform and containerization e.g., Docker/Kubernetes Familiarity with data governance, cataloging, lineage, and privacy ...

individuals as all work will require extensive collaboration with engineers and stakeholders across many teams. Key Responsibilities: Collaborate with engineers of legacy systems to understand what data is available and the form it takes Design queries & scripts to extract and transform data from … based workflows, code reviews, and CI/CD practices. Preferred Qualifications: Have used Azure cloud services previously Experience with streaming/event-driven systems e.g., Kafka/Kinesis Experience with infrastructure as code e.g., Terraform and containerization e.g., Docker/Kubernetes Familiarity with data governance, cataloging, lineage, and privacy ...

making. You will play a key role in defining enterprise-level data architecture, engaging with stakeholders, and delivering scalable data solutions integrated with business systems and processes. This is an opportunity for an experienced data professional to combine technical expertise with client-facing consultancy and leadership responsibilities. Responsibilities • Define … data modelling across enterprise environments. • Evaluate APIs, analyse data sources, and assess data quality, integrity, and timeliness. • Reverse-engineer data models from existing systems where required. • Create Agile user stories and support engineering teams throughout delivery. • Support third-party suppliers to ensure system compatibility and integration. • Contribute to integration ...

Senior Systems Engineer Location: Newcastle (primary), Stafford, Leek, IOT, Axia, Gradbach Hours: Full Time Salary: Competitive Holiday: 43 Days, rising to 47 following 5 years' service (Inclusive of Bank holidays and Christmas closure) Newcastle and Stafford Colleges Group (NSCG) is one of the very best colleges in the country. … development, and continuous improvement. This is an ideal hands-on role for a senior engineer who enjoys influencing IT strategy, modernising legacy systems, and delivering secure, scalable solutions to reflect the requirements of the curriculum and College senior leadership team. Main Duties and Responsibilities: Design, implement ...

Senior Systems Engineer Location: Newcastle (primary), Stafford, Leek, IOT, Axia, Gradbach Hours: Full Time Salary: Competitive Holiday: 43 Days, rising to 47 following 5 years' service (Inclusive of Bank holidays and Christmas closure) Newcastle and Stafford Colleges Group (NSCG) is one of the very best colleges in the country. … development, and continuous improvement. This is an ideal hands-on role for a senior engineer who enjoys influencing IT strategy, modernising legacy systems, and delivering secure, scalable solutions to reflect the requirements of the curriculum and College senior leadership team. Main Duties and Responsibilities: Design, implement ...

Database Consolidation Specialist – Remote – 6 months – SC Clearance Responsibilities: Support the consolidation by migrating data and functionality from mainly Oracle legacy systems, including Product Management Databases, CRM systems, and Geneva/Netcracker billing platforms, to the new centralised platform. Perform data extraction, transformation, and loading … resolution. Skills/Qualifications: Proven experience in database migration projects Strong expertise in Oracle, T-SQL, ETL processes, and HP-UX or other legacy Unix/Linux/Windows system administration in a mixed database environment. Strong documentation skills, including the ability to create and maintain technical documentation ...

Kubernetes CI/CD: GitHub Actions 🎯 What You’ll Be Doing 🔹 Leading the API Platform technical direction 🔹 Driving migration from legacy systems to API-first architecture 🔹 Writing high-quality, production code 🔹 Defining API standards (design, versioning, security) 🔹 Line managing & mentoring 4 engineers 🔹 Partnering closely with Product … Experience as a Tech Lead/Senior Engineer ✔️ Strong API & backend engineering experience ✔️ Excellent object-oriented design skills ✔️ Full-stack experience in production systems ✔️ Comfortable leading people & technical decisions ✨ Nice to have: legacy migration, Kubernetes, high-throughput systems, regulated domains 🎁 Package & Benefits ...

Kubernetes CI/CD: GitHub Actions 🎯 What You’ll Be Doing 🔹 Leading the API Platform technical direction 🔹 Driving migration from legacy systems to API-first architecture 🔹 Writing high-quality, production code 🔹 Defining API standards (design, versioning, security) 🔹 Line managing & mentoring 4 engineers 🔹 Partnering closely with Product … Experience as a Tech Lead/Senior Engineer ✔️ Strong API & backend engineering experience ✔️ Excellent object-oriented design skills ✔️ Full-stack experience in production systems ✔️ Comfortable leading people & technical decisions ✨ Nice to have: legacy migration, Kubernetes, high-throughput systems, regulated domains 🎁 Package & Benefits ...

Kubernetes CI/CD: GitHub Actions 🎯 What You’ll Be Doing 🔹 Leading the API Platform technical direction 🔹 Driving migration from legacy systems to API-first architecture 🔹 Writing high-quality, production code 🔹 Defining API standards (design, versioning, security) 🔹 Line managing & mentoring 4 engineers 🔹 Partnering closely with Product … Experience as a Tech Lead/Senior Engineer ✔️ Strong API & backend engineering experience ✔️ Excellent object-oriented design skills ✔️ Full-stack experience in production systems ✔️ Comfortable leading people & technical decisions ✨ Nice to have: legacy migration, Kubernetes, high-throughput systems, regulated domains 🎁 Package & Benefits ...

Kubernetes CI/CD: GitHub Actions 🎯 What You’ll Be Doing 🔹 Leading the API Platform technical direction 🔹 Driving migration from legacy systems to API-first architecture 🔹 Writing high-quality, production code 🔹 Defining API standards (design, versioning, security) 🔹 Line managing & mentoring 4 engineers 🔹 Partnering closely with Product … Experience as a Tech Lead/Senior Engineer ✔️ Strong API & backend engineering experience ✔️ Excellent object-oriented design skills ✔️ Full-stack experience in production systems ✔️ Comfortable leading people & technical decisions ✨ Nice to have: legacy migration, Kubernetes, high-throughput systems, regulated domains 🎁 Package & Benefits ...

Kubernetes CI/CD: GitHub Actions 🎯 What You’ll Be Doing 🔹 Leading the API Platform technical direction 🔹 Driving migration from legacy systems to API-first architecture 🔹 Writing high-quality, production code 🔹 Defining API standards (design, versioning, security) 🔹 Line managing & mentoring 4 engineers 🔹 Partnering closely with Product … Experience as a Tech Lead/Senior Engineer ✔️ Strong API & backend engineering experience ✔️ Excellent object-oriented design skills ✔️ Full-stack experience in production systems ✔️ Comfortable leading people & technical decisions ✨ Nice to have: legacy migration, Kubernetes, high-throughput systems, regulated domains 🎁 Package & Benefits ...

Lead modernisation. Build better data foundations in a role with real scope and visibility. A well-established business in Bristol is investing in its systems, data, and long-term technology roadmap. They're looking for a Database Engineer to take ownership of a sizeable SQL Server estate, improve standards … help drive a transformation of legacy systems to modern systems. As Database Engineer, you will be central to improving performance, upgrading legacy environments, strengthening security, streamlining data flows, and shaping how data supports reporting, operations, and future analytics . Key Responsibilities: Take ownership ...