151 to 175 of 467 Legacy Systems Jobs in the UK

and maintenance of high-performance, cutting-edge software solutions. Your role will involve working on key projects, including the migration of legacy systems and building a modern pricing engine. Key responsibilities will include: Leading and mentoring a team of developers while remaining hands-on in development tasks … Designing and enhancing low-latency systems, focusing on high performance Collaborating across teams to ensure the highest standards of software engineering are met Troubleshooting complex issues and documenting solutions Working with technologies such as message-oriented middleware, distributed caching, REST, web sockets, and IP protocols A strong passion for … Proficiency with Linux , Docker , and Kubernetes Familiarity with secondary programming languages such as C++, C, Python, or JavaScript Expertise in high-performance, low-latency systems This opportunity offers much more than just a competitive salary. You will be joining an exciting, forward-thinking fintech company that places a strong More ❯

are looking for someone who is passionate about technology, loves solving customer problems, and delivers the high quality work that we expect for critical systems at Amazon. In GTTS we embody the culture of a scale-up but still assume the responsibility of building and running products at the … practices, working closely with customers, failing fast, and continually looking for new ideas from within and without Amazon. We proactively deprecate legacy systems to reduce the burden of technical debt, and regularly develop new-greenfield-products. As a SDE in GTTS, you will work on challenging engineering … leadership at Amazon. You help establish technical standards and drive Amazon's overall technical architecture, engineering practices, and methodologies. You think globally when building systems, ensuring Amazon builds high performing, scalable systems that work well together. You are hands on, producing both detailed technical work and high-level More ❯

software platforms. Convert legacy Hyperion reports to SSRS. Software Development: Analysis of issues pertaining to problems or errors raised by in-house systems, i.e. CORE, SharePoint interface, Equation end of day cycle. Understanding business requirements in order to develop and deliver appropriate solutions based on system definition … models (SSAS) for different business units. To build reports based on business requirements using SQL SSRS. To integrate with all the Bank's sub-systems using data abstraction and connectivity layers, i.e. ODBC, ADO.net. Ensure that the environment is running optimally and with high standard house-keeping procedures. Sharepoint … automation of processes thereby eliminating the need for duplicate entry. To utilise web services to integrate from cutting edge technology into legacy systems such as Equation. End of Day Cycle: To provide second and third level support for in-house programmes during the end of day cycle. More ❯

Use Terraform and AWS CDK to build and maintain infrastructure globally at scale. Leverage AWS best practice to build highly available and fault tolerant systems for our players. Support modernisation of legacy systems, migrating away from data centres to run on AWS. Provide operational insights by … to troubleshoot and resolve out-of-hour production issues. What you'll need: Experience working with (and willingness to work with) large-scale legacy systems. Proven AWS experience, part of a team running production system to at least tens of thousands of daily uniques. Experience with containerization and More ❯

profile obsolescence programme currently being mobilised by our client. This is a critical initiative involving the phased replacement and upgrading of Legacy systems across a diverse application estate. Key Responsibilities Work closely with the client's programme team to understand the scope and impact of systems … ongoing support post-transition. Essential Skills & Experience Strong, demonstrable experience as a Test Analyst across complex, multi-system environments. Ability to quickly understand Legacy applications and the risks associated with decommissioning or replacing them. Familiarity with structured testing approaches and tools (eg, JIRA, Azure DevOps, HP ALM). … Experience with test automation tools such as Selenium or Cypress. Working knowledge of SQL and data validation techniques. Understanding of integration testing between Legacy and modern systems. Prior experience in defence, manufacturing, or similar regulated industries. Active BPSS Clearance More ❯

/4 HANA, as its foundation. This latest SAP technology provides redesigned, market-standard processes and data models to replace legacy SAP systems in the client's Operated Assets. ADC is key to achieving a Powering Progress Strategy in Integrated Gas and Upstream (IGU). ADC will … integrating them into SAP's latest ERP, S/4 HANA. This technology introduces standardised processes and data models, replacing legacy SAP systems in the client's Operated Assets to enhance efficiency. The position supports transformation efforts by ensuring SAP adoption across Integrated Gas and Upstream (IGU More ❯

In this role, you will: Work across multiple platforms, supporting both internal and external SaaS products. Lead the migration of legacy data systems to AWS, ensuring efficiency and scalability. Optimise databases, particularly SQL, MySQL, Postgres, and Redshift. Utilise AWS services (S3, Redshift) and Google Analytics to enhance … Postgres, with a deep understanding of databases. Experience working with AWS tools (Redshift, S3) and Google Analytics. Ability to migrate legacy data systems to AWS while optimising performance. Strong problem-solving skills and a proactive, hands-on approach. Comfortable working in-office three days a week, collaborating More ❯

In this role, you will: Work across multiple platforms, supporting both internal and external SaaS products. Lead the migration of legacy data systems to AWS, ensuring efficiency and scalability. Optimise databases, particularly SQL, MySQL, Postgres, and Redshift. Utilise AWS services (S3, Redshift) and Google Analytics to enhance … Postgres, with a deep understanding of databases. Experience working with AWS tools (Redshift, S3) and Google Analytics. Ability to migrate legacy data systems to AWS while optimising performance. Strong problem-solving skills and a proactive, hands-on approach. Comfortable working in-office three days a week, collaborating More ❯

In this role, you will: Work across multiple platforms, supporting both internal and external SaaS products. Lead the migration of legacy data systems to AWS, ensuring efficiency and scalability. Optimise databases, particularly SQL, MySQL, Postgres, and Redshift. Utilise AWS services (S3, Redshift) and Google Analytics to enhance … Postgres, with a deep understanding of databases. Experience working with AWS tools (Redshift, S3) and Google Analytics. Ability to migrate legacy data systems to AWS while optimising performance. Strong problem-solving skills and a proactive, hands-on approach. Comfortable working in-office three days a week, collaborating More ❯

in designing and developing a robust Core Platform, enhancing a Backend-as-a-Service (BaaS) offering, and supporting the transition from legacy systems to a cutting-edge architecture. As a Senior Software Developer, you will work across multiple squads, providing technical expertise and shaping backend services that … Java (Spring Boot, Spring Cloud) Expertise in cloud platforms (Google Cloud preferred, AWS or Azure also relevant) Experience with microservices architecture and event-driven systems ( Kafka, RabbitMQ ) Proficiency in containerisation (Docker, Kubernetes) Familiarity with CI/CD pipelines and infrastructure automation This is an exciting role for a proactive More ❯

Hybrid Contract Role Location : London OR Edinburgh Experience : 10 -12 Years Job Description: Design, develop, and maintain ETL processes to move data from source systems to Snowflake, Teradata and SQL Server environments. Build scalable data pipelines for processing and storing large datasets. Collaborate with analysts, and business stakeholders to … and integrity throughout the data lifecycle. Maintain and improve existing data architectures and workflows to meet business requirements. Create and maintain documentation for data systems, pipelines, and processes. Monitor and troubleshoot data pipeline performance issues and resolve them promptly. Assist in the migration and integration of data from legacy systems into Snowflake, and other strategic data stores. Perform data transformation tasks using SQL, Snowflake SQL, and relevant data processing tools. Required Skills and Qualifications: Proven experience working with SQL Server (e.g., T-SQL, Stored Procedures, Indexing, Query Optimization, System Catalog Views). Strong experience in Snowflake More ❯

join a team where your work genuinely makes a difference? This is an exciting opportunity to contribute to a major project migrating a legacy data centre to the AWS cloud platform by the end of 2025. The project involves moving 93 individual services, including critical data from some … technical challenges that arise during migration Communicating progress, issues, and solutions clearly and effectively to stakeholders Enabling a seamless transition from legacy systems to modern cloud-based environments Who You’ll Be You’ll be an experienced Data Migration Engineer, confident in migrating databases to the cloud More ❯

into cutting-edge solutions that address the evolving demands of the Energy sector. These initiatives include advanced Gas infrastructure, LNG technology, effective Energy Storage systems and Green Energy solutions. These innovations create opportunities for exceptionally talented individuals to contribute to the success of this evolution, working alongside some of … tools, bringing in best practices from market standard implementations - Manage complex integration scenarios and interfaces between on-premises solutions, cloud and legacy systems This needs combining with a positive attitude and an ability to work within a large, globally dispersed project team in a multi-cultural environment. More ❯

into cutting-edge solutions that address the evolving demands of the Energy sector. These initiatives include advanced Gas infrastructure, LNG technology, effective Energy Storage systems and Green Energy solutions. These innovations create opportunities for exceptionally talented individuals to contribute to the success of this evolution, working alongside some of … tools, bringing in best practices from market standard implementations - Manage complex integration scenarios and interfaces between on-premises solutions, cloud and legacy systems This needs combining with a positive attitude and an ability to work within a large, globally dispersed project team in a multi-cultural environment. More ❯

transform any business at scale. We've created a unified platform that adapts to diverse needs, offering the scalability and reliability legacy systems simply can't match. At ZILO, our DNA is built on Character, Creativity, and Craftsmanship. We face every challenge with integrity, explore new ideas … Go programming and microservices architecture. Experience with AWS and containerization technologies (e.g., Docker, Kubernetes). Familiarity with CI/CD pipelines and version control systems (e.g., Git). Excellent problem-solving skills and attention to detail. Strong communication and teamwork abilities. Preferred Qualifications: Experience with monitoring and logging tools More ❯

and proactive Mainframe Assembler Developer to join a leading financial institution. You will play a key role in supporting and enhancing legacy systems critical to banking operations. The ideal candidate will have strong technical expertise in Assembler and related mainframe technologies, combined with solid experience in high More ❯

role is for you! THE ROLE As a Senior BI Analyst, you will play a key role in mapping data from legacy systems to a new platform, while consolidating and cleaning data from various sources to deliver actionable insights. You will provide data-driven solutions to business More ❯

technologies such as MongoDB/NoSQL would be a bonus. Experience working in an Agile environment. Iteration management experience. Flexible to work on legacy systems. Be highly valued: Access to flexible working arrangements. Learn from experienced professionals. Great people to work with. Investment in your learning and development. More ❯

on impactful projects that support NHS patients and service users across the UK. Responsibilities: Develop, maintain, and enhance PHP applications. Optimise and refactor legacy … code for performance, security, and maintainability. Collaborate with cross-functional teams to design and implement new features. Ensure seamless integration between legacy systems and new applications. Maintain high code quality through testing, code reviews, and best practices. Provide technical support for live deployments when required. Experience: Proven More ❯

successful IT projects. Looking for someone who has managed SDLC, business application implementations, worked in legacy environments/integrated legacy systems and replacing databases on access, also engaging with 3rd party suppliers. Successful delivery of IT/Business projects including estimates, plans, resource management, schedule More ❯

software platforms. Convert legacy Hyperion reports to SSRS. Software Development: Analysis of issues pertaining to problems or errors raised by in-house systems, i.e. CORE, SharePoint interface, Equation end of day cycle. Understanding business requirements in order to develop and deliver appropriate solutions based on system definition … models (SSAS) for different business units. To build reports based on business requirements using SQL SSRS. To integrate with all the Bank's sub-systems using data abstraction and connectivity layers, i.e. ODBC, ADO.net. Ensure that the environment is running optimally and with high standard house-keeping procedures. Sharepoint … automation of processes thereby eliminating the need for duplicate entry. To utilise web services to integrate from cutting edge technology into legacy systems such as Equation. End of Day Cycle: To provide second and third level support for in-house programmes during the end of day cycle. More ❯

an instrumental role in maintaining and enhancing our security controls across Microsoft Azure, Office 365, and during the migration of our legacy systems to the Microsoft cloud. Your responsibilities will include: Evaluate and enhance existing IT systems, management procedures, and security protocols to ensure robust protection. More ❯

into the world of high-performance tech and quantitative finance? Join a leading global trading firm where innovation is key — no legacy systems, no bureaucracy, just a fast-paced, intellectually stimulating environment designed for growth. With unlimited access to cutting-edge technology and mentorship from top-tier … impact projects from day one, shaping the future of trading tech. 🛠️ What You’ll Be Doing 🧠 Develop and enhance state-of-the-art trading systems and infrastructure 📊 Design and implement your own quantitative models 🤝 Collaborate with top engineers, quants, and researchers to tackle complex challenges 🚀 Learn rapidly and grow … your contributions have real impact 🧠 Collaborate with some of the brightest minds in both tech and finance 🛠 Access to top-of-the-line tools, systems, and infrastructure 📈 Unmatched career growth in a high-performance, meritocratic culture 📩 Ready to jumpstart your career at the forefront of trading tech? Apply now More ❯

into the world of high-performance tech and quantitative finance? Join a leading global trading firm where innovation is key — no legacy systems, no bureaucracy, just a fast-paced, intellectually stimulating environment designed for growth. With unlimited access to cutting-edge technology and mentorship from top-tier … impact projects from day one, shaping the future of trading tech. 🛠️ What You’ll Be Doing 🧠 Develop and enhance state-of-the-art trading systems and infrastructure 📊 Design and implement your own quantitative models 🤝 Collaborate with top engineers, quants, and researchers to tackle complex challenges 🚀 Learn rapidly and grow … your contributions have real impact 🧠 Collaborate with some of the brightest minds in both tech and finance 🛠 Access to top-of-the-line tools, systems, and infrastructure 📈 Unmatched career growth in a high-performance, meritocratic culture 📩 Ready to jumpstart your career at the forefront of trading tech? Apply now More ❯

opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team The Commerce Systems team owns an expansive mix of platform, infrastructure, and product problems. We are looking for people with a strong background or interest in working … users' and stakeholders' needs to ensure we create surprisingly great experiences. Strong technical skills e.g., ability to gain an in-depth understanding of software systems, make meaningful contributions to high-stakes discussions on API design, data modeling and software architecture. Strong customer empathy across different segments and personas: from … as a Product Manager in technology companies. Experience managing and mentoring Product Managers is a plus. Understanding and experience with Accounting, tax and financial systems and processes. Experience building platform infrastructure that serves and balances the needs of multiple users and stakeholders. You're excited by thinking through the More ❯