76 to 100 of 425 Permanent Legacy Systems Jobs

channels. Product Management: Define and manage customer data products, including use case prioritisation, roadmap development, and value measurement. Data Modernisation: Apply modern data principles to transform legacy systems into scalable, cloud-native architectures. Customer Data Architecture: Collaborate with architects to design and implement CDPs, MDM, and CRM systems that support real-time decisioning. Insight Generation: Partner More ❯

environment using a wide array of different technologies: Microservices Dynamic data schema and SQL Server Newer technologies: .NET 8 and ReactJS Older technologies: .NET framework, AngularJS, and jQuery Design systems: Carbon You will have a structured career path supporting your technical growth from your starting position to Software Architect. What is CAS? CAS is an employee-owned software company … take pride in enhancing Workpro for everyone. We foster innovation and creativity to improve our product, keeping our skills current with the latest technologies. We support legacy systems, working with both older and newer technologies to maintain and extend the system. Ownership and pride in our work are core values. We collaborate to fix issues and celebrate … hours and compressed work schedules are supported. Short-term international work is possible, depending on circumstances. Duties Activities include: Implementing new features Fixing bugs Writing automated tests Supporting build systems Collaborating with analysts and product owners Deploying releases Modernizing legacy system components Customer support Technical documentation Out-of-hours support may occasionally be required, with a rota More ❯

This is a key role working alongside the Group Technology Director and a small UK team, mentoring junior developers, writing and reviewing code, and helping transition legacy systems to modern AWS-powered solutions. Projects include pricing analytics for competitive pricing, streamlining warehouse processes, and expanding product offerings across multiple sales channels. Key Responsibilities: Develop and maintain eCommerce … and warehouse fulfilment systems Mentor and coach junior developers Write, review, and document code within a fast-paced environment with limited legacy documentation Support CI/CD pipelines and devops practices What We're Looking For: 3+ years professional experience with .NET, SQL databases, AWS, Docker, and CI/CD pipelines Strong problem-solving skills and autonomous More ❯

value curiosity, collaboration, humility, and a willingness to learn from failure. Duties and Responsibilities You will play a key role in reimagining the Lasernet platform, balancing legacy systems with new development. Your responsibilities include: Refactoring and modernizing core codebase Deep problem analysis before solution implementation Participating in agile planning, estimation, and delivery Owning your work end-to … and new technologies Sharing knowledge and reviewing code with teammates Knowledge and Experience Must-haves: 5-10 years of software development experience across various domains Experience modernizing monolithic systems Strong C++ skills and Windows Desktop Development experience (Win32 is a bonus) Understanding of desktop application development Experience working in a platform team Commitment to long-term projects and … team stability Nice-to-haves: Knowledge of Qt Framework Experience with .NET and C# Front-end skills: HTML, React, TypeScript, Node.js Low-level programming (C, C++, Rust) and systems knowledge Skills Ideal candidate traits: Pragmatic problem solver Comfortable with legacy and greenfield projects Eager to learn new tools and technologies Collaborative but capable of independent work Knowledge More ❯

EA, Visio) Deep understanding of system interoperability, security architecture, and service-oriented design Strong communication and leadership skills with the ability to interface with senior stakeholders Experience designing IT systems for defense, intelligence, or federal agencies Knowledge of Zero Trust architecture, DevSecOps, and infrastructure-as-code (IaC) practices Familiarity with DoD Architecture Framework (DoDAF) or other federal architecture standards … Background in transitioning legacy systems to modern cloud-based architectures Join a mission-driven team advancing government communication capabilities and operational readiness. Apply today and become part of Synertex LLC's legacy of innovation, leadership, and excellence. More ❯

a tight-knit development team to make key technical decisions, shape architecture, and drive feature development. Integrate seamlessly with third-party APIs, cloud platforms, and existing legacy systems where necessary. Own and evolve database design, models, and schemas to support new features and improve system efficiency. Craft performant SQL queries, stored procedures, and triggers to support mission … learning-focused, collaborative engineering culture. Qualifications & Requirements You thrive in a fast-moving, collaborative environment where ideas are welcomed, and experimentation is encouraged. 7+ years of experience building backend systems in a production environment. 3+ years of hands-on experience with modern software architecture and scalable frameworks. Proficiency in Java (Spring Boot), Python, or similar. Proficiency in JavaScript/…/CD pipelines, monitoring, containerization, etc.). Full stack development Knowledge of the dental or healthcare domain is a plus. Demonstrated experience in technical leadership or ownership of features, systems, or architecture. Experience with .NET Our Recruiting Process We try to make our process as simple as possible while still giving us opportunities to learn about each other. Phone More ❯

is building smarter, greener technology to power a low-carbon future. We're looking for a Junior Software Developer to join us and help combat the challenges of legacy tech and drive the evolution of our cloud-based digital services. Ofgem is Great Britain's independent energy regulator. We're at the forefront of change across the energy … looking to kick-start or reshape their career in software development. This role offers experience across a wide range of technologies and applications, from working with legacy systems to contributing to modern cloud-based platforms. From day one, you'll join a collaborative digital team, gaining exposure to real-world projects. You'll have the chance to … maintain digital solutions that help us on our vital mission to protect consumers and accelerate Net Zero. In this role, you'll be part of that mission, contributing to systems that support environmental programmes and energy reform across the UK. Read on and find out more. Key Responsibilities Monitor site uptime and site reliability and take necessary action. Stewardship More ❯

is building smarter, greener technology to power a low-carbon future. We're looking for a Junior Software Developer to join us and help combat the challenges of legacy tech and drive the evolution of our cloud-based digital services. Ofgem is Great Britain's independent energy regulator. We're at the forefront of change across the energy … looking to kick-start or reshape their career in software development. This role offers experience across a wide range of technologies and applications, from working with legacy systems to contributing to modern cloud-based platforms. From day one, you'll join a collaborative digital team, gaining exposure to real-world projects. You'll have the chance to … maintain digital solutions that help us on our vital mission to protect consumers and accelerate Net Zero. In this role, you'll be part of that mission, contributing to systems that support environmental programmes and energy reform across the UK. Read on and find out more. Key Responsibilities Monitor site uptime and site reliability and take necessary action. Stewardship More ❯

is building smarter, greener technology to power a low-carbon future. We're looking for a Junior Software Developer to join us and help combat the challenges of legacy tech and drive the evolution of our cloud-based digital services. Ofgem is Great Britain's independent energy regulator. We're at the forefront of change across the energy … looking to kick-start or reshape their career in software development. This role offers experience across a wide range of technologies and applications, from working with legacy systems to contributing to modern cloud-based platforms. From day one, you'll join a collaborative digital team, gaining exposure to real-world projects. You'll have the chance to … maintain digital solutions that help us on our vital mission to protect consumers and accelerate Net Zero. In this role, you'll be part of that mission, contributing to systems that support environmental programmes and energy reform across the UK. Read on and find out more. Key Responsibilities Monitor site uptime and site reliability and take necessary action. Stewardship More ❯

directly with hosts, our Property Experts, and designers to deeply understand the product this industry needs most. Improving how we work. We have a ton of legacy systems to refactor and simplify. A mixture of great and not so great CI/CD and, a patchwork of patterns from years of experimentation. What successful looks like at … infrastructure. GitHub Actions for testing and deployment. Sentry and Grafana for observability. OpenAI for LLM integrations. We also work with: Python and Flask which underpin most of our legacy estate. We actively maintain services following a number of legacy patterns. What we offer Salary between £60,000 and £80,000 Unlimited holiday allowance Comprehensive benefits package More ❯

ll build responsive web interfaces and develop robust backend services, delivering scalable, high-performance solutions. You’ll join a fast-paced Agile team, driving new features and maintaining critical systems that support essential public services. Key Responsibilities of the Senior Software Developer: Design, develop and maintain responsive web applications focusing on user experience and accessibility Deliver frontend components using … RESTful APIs and backend services Competence in writing and optimising SQL queries for relational databases Familiarity with Agile software development methodologies and tools Experience working with legacy systems and modernisation initiatives advantageous Ability to communicate effectively with technical and non-technical stakeholders Relevant degree or equivalent professional experience in software development You’ll join a team focused More ❯

our business units. Our technology teams offer you an environment that will present you with exciting challenges - be it through the support and further development of legacy systems or the introduction of modern technologies such as AI, machine learning and highly automated trading applications. Our Technology department of around 300 employees works largely in an agile way … presenting this data on our Investment Bank website, creating new products for our clients (AI, calculation engine, multi media channels). The team also provides registration, scheduling and reporting systems for the Conferencing team which serve CEOs/CFOs, covering both small and flagship events. The team of 5 developers and 1 product owner use agile methodologies to deliver More ❯

Access Management (IdAM), and overall access governance. This role will collaborate closely with cyber security, engineering, and business stakeholders, ensuring the delivery of secure, modern platforms to replace legacy systems. Candidates based in the UK, able to work in a hybrid model (two days per week in either our London or Nuneaton office), are strongly preferred. The Role … new store and enterprise features. Technical Execution Ensure agile delivery of high-quality, secure solutions using Scrum, SAFe, or other scaled agile frameworks. Guide transitions from legacy systems to secure modern platforms with minimal disruption. Monitor and support post-implementation phases, addressing access issues, incidents, or escalations. Initial Objectives (First 3 Months) Establish and lead a comprehensive More ❯

and Access Management (IdAM), and overall access governance.This role will collaborate closely with cyber security, engineering, and business stakeholders, ensuring the delivery of secure, modern platforms to replace legacy systems. Candidates based in the UK, able to work in a hybrid model (two days per week in either our London or Nuneaton office), are strongly preferred. The Role … new store and enterprise features. Technical Execution Ensure agile delivery of high-quality, secure solutions using Scrum, SAFe, or other scaled agile frameworks. Guide transitions from legacy systems to secure modern platforms with minimal disruption. Monitor and support post-implementation phases, addressing access issues, incidents, or escalations. Initial Objectives (First 3 Months) Establish and lead a comprehensive More ❯

including travel to London once a month) Salary: £60,000 - £70,000 Network IT are looking for an exceptional Solutions Architect who come from a technical background of applications, systems, and software development. This individual will utilise their experience and technical knowledge of the above in conjunction with their fantastic stakeholder management and wider strategic expertise. This role currently … with the expectation that you travel to their Central London office once a month (expensed) . Role Overview Our client is undertaking a significant application replacement programme (over 250 systems, fluctuating in scale) to ensure the application environment which is critical to how they operate is maintained and is utilised to the highest standards. The successful candidate in this … Design Authority)) in environments with competent experience supporting high-code, low-code and COTS (Commercial Off The Shelf) products/systems. Key Responsibilities Design and govern technical architecture across systems and cloud platforms Maintain alignment with the organisations technology roadmap, working alongside a second Solution Architect Collaborate with stakeholders to understand business goals, product needs, and technical implications Translate More ❯

contribute to the adoption of new technologies in cloud, big data, and machine learning while working in agile environment. Design and develop data migration pipelines from legacy systems to modern cloud infrastructure. Automate processes and improve data delivery mechanisms to enhance operational efficiency. No international travel will be required for this position. No relocation will be required More ❯

degree in Computer Science or related field; Master's preferred. 9+ years of software development experience, particularly in integration and data transformation. Proven ability in migrating legacy systems to modern technology stacks. Practical experience or strong enthusiasm for AI and generative technologies. Strong experience with both C#/.NET and modern web technologies (TypeScript, NodeJS, React). More ❯

Migration consultants Liaising closely with client counterparts, Accenture colleagues and Workday to achieve a robust solution Serve as the primary knowledge source for converting data from legacy systems and spreadsheets into the WorkdayCloudHCM & Financials system Intermediate understanding of ETL scripts and methodology to load data into Workday. Active involvement in (pre-)sales activities to shape the right More ❯

level JavaScript knowledge: React preferred Experience with jQuery or Angular (or comparable frameworks) Experience with software integration, including build, installation, and deployment Familiarity with both greenfield development and legacy system modernization Agile/Scrum development experience Strong verbal and written communication skills More ❯

currently undergoing a large-scale digital transformation. They are looking for a Full Stack Developer with strong Microsoft and Azure experience to help modernise and integrate legacy systems with cloud-native, scalable applications. What You'll Do Develop and maintain full-stack solutions using .NET Core , C# , and React/Angular/Blazor Build and optimise REST More ❯

of GenAI and ML, including LLMs, RAG, MLOps, and prompt engineering Familiarity with platforms such as AWS Bedrock, Google Vertex, LangChain, or LlamaIndex Experience with both legacy systems and modern tech stacks Proven track record in agile delivery and digital transformation Excellent communication, analytical, and stakeholder management skills Willingness to travel internationally Desirable Attributes Degree in Computer More ❯

Knowledge of M365 tenant governance and lifecycle management Experience with AI capabilities within M365 (e.g., Copilot, Viva Insights) Familiarity with integrating M365 with third-party or legacy systems More ❯

with front-end teams using frameworks such as React, Vue, or Angular • Write clean, scalable code following best practices and coding standards • Troubleshoot complex issues, refactor legacy systems, and improve performance • Contribute to architectural decisions and technical planning • Participate in code reviews and mentor junior developers where needed Essential Skills & Experience • 4+ years' commercial experience with Umbraco More ❯

work in an area where remediation is required. Perhaps a client is looking to enhance a specific skillset, lacks premises or wants to move an operation forward despite legacy systems. We're there to help, delivering the very best practice through successful leveraging of data and the use of proprietary and partner technology. As companies rely on us More ❯

consultancy embedded in some of the UKs most ambitious financial services programmes. They work closely with business and technology leaders to drive strategic change, from platform modernisation and core systems reengineering, to cloud adoption and integration overhaul. Your Role Youll be part of a highly credible, expert-led team shaping complex solutions across the full technology stack. Whether modernising … legacy systems, enabling cloud-first strategies, or improving end-to-end integration, youll bring structure, clarity, and delivery alignment to everything you do. What Youll Be Doing as a Solution Architect: Lead the design and implementation of end-to-end solutions across application, integration, and infrastructure domains Shape and steer technology change across major programmes, working closely … recommendations What Youll Bring as a Solution Architect: Youre a credible solution architect who thrives in fast-paced, high-compliance environments. You understand the realities of Financial Services, legacy complexity, data sensitivity, and the need to balance innovation with control. Key Experience: Deep experience in Financial Services (e.g. banking, insurance, wealth, or capital markets) Proven success delivering architecture More ❯