201 to 225 of 573 Legacy Systems Jobs in the UK

back-end development of trading tools used by internal stakeholders. The organisation is transitioning to a microservices architecture, which means that there will be an equal balance between legacy system work and new development initiatives on the roadmap. The intention is to move away from old ways of working, and look at the best approach and technologies, giving … understanding of database operations and clustering Prior experience with the likes of WinForms, WCP or WPF Understanding of either AWS, Azure or other cloud environments Experience with large scale systems On offer: Flexible working hours Annual bonus 25 days leave + bank holidays Pension Enhanced paternity and maternity leave etc. Only candidates residing within a reasonable commutable distance from More ❯

and delivery methodologies (Agile, Waterfall, hybrid approaches). Excellent documentation and planning skills – able to clearly articulate requirements, scope, and deliverables. Experience in environments transitioning from legacy systems or mixed technology landscapes. Desirable Qualifications Microsoft certifications in SharePoint or related technologies. Formal project management qualifications (e.g. PRINCE2, PMP, AgilePM). Experience working within regulated industries or with More ❯

and delivery methodologies (Agile, Waterfall, hybrid approaches). Excellent documentation and planning skills – able to clearly articulate requirements, scope, and deliverables. Experience in environments transitioning from legacy systems or mixed technology landscapes. Desirable Qualifications Microsoft certifications in SharePoint or related technologies. Formal project management qualifications (e.g. PRINCE2, PMP, AgilePM). Experience working within regulated industries or with More ❯

and delivery methodologies (Agile, Waterfall, hybrid approaches). Excellent documentation and planning skills – able to clearly articulate requirements, scope, and deliverables. Experience in environments transitioning from legacy systems or mixed technology landscapes. Desirable Qualifications Microsoft certifications in SharePoint or related technologies. Formal project management qualifications (e.g. PRINCE2, PMP, AgilePM). Experience working within regulated industries or with More ❯

and data residency requirements. Oversee the planning and execution of phased migration strategies, including early delivery of decoupled processes to reduce risk. Implement replacement solutions for legacy systems (e.g., fax, voice recording, application access). Act as business lead for final migration phases, managing detailed plans from analysis through to operational readiness and go-live. Coordinate cross More ❯

and data residency requirements. Oversee the planning and execution of phased migration strategies, including early delivery of decoupled processes to reduce risk. Implement replacement solutions for legacy systems (e.g., fax, voice recording, application access). Act as business lead for final migration phases, managing detailed plans from analysis through to operational readiness and go-live. Coordinate cross More ❯

and data residency requirements. Oversee the planning and execution of phased migration strategies, including early delivery of decoupled processes to reduce risk. Implement replacement solutions for legacy systems (e.g., fax, voice recording, application access). Act as business lead for final migration phases, managing detailed plans from analysis through to operational readiness and go-live. Coordinate cross More ❯

Application Architect, fluent in modern engineering practices and passionate about building the next generation of cloud-native applications on Azure? Do you want to shape application strategy, modernise legacy platforms, and bring real business innovation to life? This is more than just an architecture role. It’s a chance to lead transformation from the inside out, in a … be the bridge between engineering teams and business outcomes. Working with clients across regulated industries and fast-growth markets, you’ll own: Azure Application Modernisation – redesigning legacy systems for scalability, performance and maintainability Cloud-Native Architecture – microservices, containers, serverless, event-driven systems Engineering Leadership – guiding software teams through modern DevOps, IaC, CI/CD and observability More ❯

for a hands-on SQL Developer with proven experience in Sybase to jump into a high-priority, short-term project focused on data reconciliation and processing within a legacy Sybase SQL database environment. You’ll be working as part of a collaborative agile delivery team, helping to analyse and restructure complex datasets, develop SQL logic, and support regulatory … business-driven changes in a fast-paced setting. Key Skills for the SQL Developer (Sybase); Proven experience with Sybase SQL Strong SQL development skills, particularly with legacy systems Ability to quickly understand and navigate complex database structures Background in data reconciliation, financial data processing, or ETL workflows Strong communication skills and comfort working in cross-functional agile More ❯

for a hands-on SQL Developer with proven experience in Sybase to jump into a high-priority, short-term project focused on data reconciliation and processing within a legacy Sybase SQL database environment. You’ll be working as part of a collaborative agile delivery team, helping to analyse and restructure complex datasets, develop SQL logic, and support regulatory … business-driven changes in a fast-paced setting. Key Skills for the SQL Developer (Sybase); Proven experience with Sybase SQL Strong SQL development skills, particularly with legacy systems Ability to quickly understand and navigate complex database structures Background in data reconciliation, financial data processing, or ETL workflows Strong communication skills and comfort working in cross-functional agile More ❯

in cloud architecture and implementation. - Bachelor's degree in computer science, Engineering, related field, or equivalent experience. - Substantial hands-on technical experience with mainframe, non-x86 legacy systems and with technologies such as COBOL, JCL, CICS, DB2 for z/OS, Assembler, PL/I, Java, Rexx, flat/sequential files, GDGs, and VSAM. - Proven track record … in a technical lead role migrating workloads from mainframe and non-x86 legacy systems to distributed x86 infrastructures either on-premises or on to the Cloud. - Deep experience integrating mainframe and non-x86 legacy systems with distributed Linux-based or Windows-based x86 servers. PREFERRED QUALIFICATIONS - Strong communication skills with the ability to explain … both technical and non-technical audiences - AWS associate or professional level certifications (e.g., Solutions Architect Associate or Professional, DevOps Engineer Professional) preferred - Experience leading customers with mainframe and legacy modernization initiatives. - Experience with tools and methodologies used to migrate mainframe workloads via hardware/middleware emulation, automated code conversion, and re-platforming. - Experience with analyzing on-premises mainframe More ❯

graduated and eager to dive 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 engineers and quants, you’ll … have the opportunity to contribute to high-impact projects, 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 within a firm that thrives on … greenfield projects from day one — 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 Apply now or reach out directly: obloom@hunterbond.com More ❯

graduated and eager to dive 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 engineers and quants, you’ll … have the opportunity to contribute to high-impact projects, 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 within a firm that thrives on … greenfield projects from day one — 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 Apply now or reach out directly: obloom@hunterbond.com More ❯

graduated and eager to dive 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 engineers and quants, you’ll … have the opportunity to contribute to high-impact projects, 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 within a firm that thrives on … greenfield projects from day one — 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 Apply now or reach out directly: obloom@hunterbond.com More ❯

inside IR35 (gross umbrella rate) We’re working with a major financial institution looking to scale out its engineering function with a Principal Java Developer to lead critical systems work. This is a hands-on Principal role requiring an experienced engineer with a finance background to come in and stabilise an existing platform. This Java-based stabilisation/rescue … also involves guiding CI/CD improvements, REST API design, and steering collaborative technical decisions across squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems in the finance industry (all areas of finance considered) Strong background in Java and ideally C# Some front-end exposure in Angular - this is mandatory, but doesn't need … to be recent or extensive Comfortable working with legacy systems and large enterprise environments Confident in leading technical conversations across multiple engineering disciplines Experience with CI/CD pipelines and modern deployment practices REST API design This is a great opportunity for an experienced Java Developer to join a prestigious financial player. If you’re someone who More ❯

graduated and eager to dive 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 engineers and quants, you’ll … have the opportunity to contribute to high-impact projects, 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 within a firm that thrives on … greenfield projects from day one — 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 Apply now or reach out directly: obloom@hunterbond.com More ❯

inside IR35 (gross umbrella rate) We’re working with a major financial institution looking to scale out its engineering function with a Principal Java Developer to lead critical systems work. This is a hands-on Principal role requiring an experienced engineer with a finance background to come in and stabilise an existing platform. This Java-based stabilisation/rescue … also involves guiding CI/CD improvements, REST API design, and steering collaborative technical decisions across squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems in the finance industry (all areas of finance considered) Strong background in Java and ideally C# Some front-end exposure in Angular - this is mandatory, but doesn't need … to be recent or extensive Comfortable working with legacy systems and large enterprise environments Confident in leading technical conversations across multiple engineering disciplines Experience with CI/CD pipelines and modern deployment practices REST API design This is a great opportunity for an experienced Java Developer to join a prestigious financial player. If you’re someone who More ❯

inside IR35 (gross umbrella rate) We’re working with a major financial institution looking to scale out its engineering function with a Principal Java Developer to lead critical systems work. This is a hands-on Principal role requiring an experienced engineer with a finance background to come in and stabilise an existing platform. This Java-based stabilisation/rescue … also involves guiding CI/CD improvements, REST API design, and steering collaborative technical decisions across squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems in the finance industry (all areas of finance considered) Strong background in Java and ideally C# Some front-end exposure in Angular - this is mandatory, but doesn't need … to be recent or extensive Comfortable working with legacy systems and large enterprise environments Confident in leading technical conversations across multiple engineering disciplines Experience with CI/CD pipelines and modern deployment practices REST API design This is a great opportunity for an experienced Java Developer to join a prestigious financial player. If you’re someone who More ❯

with functional consultants and business stakeholders to define solution requirements. -Provide mentorship and technical leadership to the development team. -Support integration projects and upgrades from legacy NAV systems to Business Central. -Contribute to DevOps practices and source control (e.g., Git, Azure DevOps). -Engage in technical scoping and solution design during pre-sales activities. Requirements: -Extensive experience … with Dynamics 365 Business Central (and legacy NAV). -Advanced skills in AL development and extension design. -Strong architectural understanding and experience designing integrated solutions. -Familiarity with APIs, web services, and integration patterns. -Excellent problem-solving skills and a proactive, collaborative approach. -Experience with Azure services and Power Platform is advantageous. More ❯

securing complex deals, and guiding large-scale data platform migrations. Proficiency in AWS, Azure, or GCP is required, and good knowledge of SAP BTP and SAP Datasphere, and legacy-to-cloud migration strategies is a significant advantage. If you thrive in a consultative environment, have a passion for architecting scalable data solutions, and want to join a collaborative … robust ETL/ELT pipelines and implement CDC and delta load frameworks to enhance data integration and performance. Platform Modernization & SAP Expertise: Lead complex migrations from legacy systems to modern cloud platforms; oversee SAP BW to SAP Datasphere transitions and leverage SAP Data Analytics to maximize solution effectiveness. Governance, Security & Collaboration: Ensure adherence to data governance and … solutions. Qualifications: 15+ years of experience as a Data Solutions Consultant, Pre-Sales Data Engineer, or in a cloud data architecture role in SAP BW, AP Datasphere, and legacy-to-cloud migration strategies Hands-on experience with AWS, Azure, or GCP and familiarity with cloud-native tools such as AWS Glue, DMS, Kafka, Azure Data Factory, and Google More ❯

tackle complex challenges using tools like Hadoop, Spark, and modern visualisation frameworks while implementing automation that drives government efficiency. You'll collaborate with stakeholders to transform legacy systems, implement data governance frameworks, and ensure solutions meet the highest security standards. Our deep expertise in public sector digital transformation and established presence across defence and government organisations offer … unique opportunities to shape the future of UK public services through innovative data-driven solutions. With our strong technical foundation and focus on mission-critical systems, you'll be part of a team delivering nationally significant projects that have a real impact on public service delivery. If you're passionate about applying cutting-edge data science and engineering in … you will: Data Engineering Focus: Design, implement, and maintain scalable data pipelines and ETL processes Develop and maintain data warehouses and data lakes Implement data quality monitoring and validation systems Create and maintain data documentation and cataloguing systems Optimize data storage and retrieval systems Implement data security and governance frameworks Build and maintain data APIs and services More ❯

tackle complex challenges using tools like Hadoop, Spark, and modern visualisation frameworks while implementing automation that drives government efficiency. You'll collaborate with stakeholders to transform legacy systems, implement data governance frameworks, and ensure solutions meet the highest security standards. Our deep expertise in public sector digital transformation and established presence across defence and government organisations offer … unique opportunities to shape the future of UK public services through innovative data-driven solutions. With our strong technical foundation and focus on mission-critical systems, you'll be part of a team delivering nationally significant projects that have a real impact on public service delivery. If you're passionate about applying cutting-edge data science and engineering in … you will: Data Engineering Focus: Design, implement, and maintain scalable data pipelines and ETL processes Develop and maintain data warehouses and data lakes Implement data quality monitoring and validation systems Create and maintain data documentation and cataloguing systems Optimize data storage and retrieval systems Implement data security and governance frameworks Build and maintain data APIs and services More ❯

tackle complex challenges using tools like Hadoop, Spark, and modern visualisation frameworks while implementing automation that drives government efficiency. You'll collaborate with stakeholders to transform legacy systems, implement data governance frameworks, and ensure solutions meet the highest security standards. Our deep expertise in public sector digital transformation and established presence across defence and government organisations offer … unique opportunities to shape the future of UK public services through innovative data-driven solutions. With our strong technical foundation and focus on mission-critical systems, you'll be part of a team delivering nationally significant projects that have a real impact on public service delivery. If you're passionate about applying cutting-edge data science and engineering in … you will: Data Engineering Focus: Design, implement, and maintain scalable data pipelines and ETL processes Develop and maintain data warehouses and data lakes Implement data quality monitoring and validation systems Create and maintain data documentation and cataloguing systems Optimize data storage and retrieval systems Implement data security and governance frameworks Build and maintain data APIs and services More ❯

role is ideal for someone with a solid grounding in software development, particularly in Golang or a similar language, who is eager to contribute to both legacy systems and innovative cloud-based solutions. You’ll play a key role in supporting our video calling functionality and helping us transition outbound communication capabilities to the cloud. Key Responsibilities … culture of knowledge sharing and mentorship. Key Skills Proficient in at least one programming language ( , Java, C#, Python), with a strong preference for Golang. Experience building and maintaining software systems in a production environment. Understanding of software deployment processes and controls in regulated environments. Desirable: Experience with AWS, particularly AWS Lambda or other serverless/cloud-native services. Exposure More ❯

role is ideal for someone with a solid grounding in software development, particularly in Golang or a similar language, who is eager to contribute to both legacy systems and innovative cloud-based solutions. You’ll play a key role in supporting our video calling functionality and helping us transition outbound communication capabilities to the cloud. Key Responsibilities … culture of knowledge sharing and mentorship. Key Skills Proficient in at least one programming language ( , Java, C#, Python), with a strong preference for Golang. Experience building and maintaining software systems in a production environment. Understanding of software deployment processes and controls in regulated environments. Desirable: Experience with AWS, particularly AWS Lambda or other serverless/cloud-native services. Exposure More ❯