51 to 75 of 109 Legacy Systems Jobs in London

Tech Lead – SC Cleared - PythonWe’re looking for an SC Cleared Software Developer to play a key role in modernising a legacy government web application.While the current system runs on Django/Python/PostgreSQL, the team is gradually transitioning to a more modern, streamlined stack, making this an exciting opportunity to balance today’s stability with tomorrow … including JavaScript-based Experience Required: Proficiency in Python/Django development. Knowledge of relational databases (PostgreSQL). Familiarity with asynchronous tools (Celery). Interest in modernising legacy systems and introducing new web technologies. Strong communication skills for collaborating in a multi-disciplinary team. Please apply for further details. More ❯

implementation team Manage project plans, milestones, risks, and budgets across HR, Payroll, IT, and Finance Oversee system configuration, UAT, and deployment activities Coordinate data migration from legacy systems and integration into enterprise data structures Develop training and change plans to support adoption across HR and the wider business Drive continuous improvement and post-go-live optimisation What More ❯

implementation team Manage project plans, milestones, risks, and budgets across HR, Payroll, IT, and Finance Oversee system configuration, UAT, and deployment activities Coordinate data migration from legacy systems and integration into enterprise data structures Develop training and change plans to support adoption across HR and the wider business Drive continuous improvement and post-go-live optimisation What More ❯

implementation team Manage project plans, milestones, risks, and budgets across HR, Payroll, IT, and Finance Oversee system configuration, UAT, and deployment activities Coordinate data migration from legacy systems and integration into enterprise data structures Develop training and change plans to support adoption across HR and the wider business Drive continuous improvement and post-go-live optimisation What More ❯

implementation team Manage project plans, milestones, risks, and budgets across HR, Payroll, IT, and Finance Oversee system configuration, UAT, and deployment activities Coordinate data migration from legacy systems and integration into enterprise data structures Develop training and change plans to support adoption across HR and the wider business Drive continuous improvement and post-go-live optimisation What More ❯

We're working with a Central Government department, currently embarking on a major programme to implement a cloud based Oracle HCM system to replace legacy HR and Finance Systems. DV Cleared Oracle contract consultants with experience in one of the following areas are now required for initial 9 month contracts: Oracle Payroll Cloud Specialist - including reporting, integrations and More ❯

all business units to help distribution provide focus in our underwriting approach for best value operational return Help provide feedback and direction as we transition from legacy systems to guidewire and implement salesforce into the business Perform other duties as assigned What Will Our Ideal Candidate Have? Previous experience in a similar role The ability to translate More ❯

. Responsibilities: Design and support all integration processes including migrations to and from new businesses as well as within internal applications and databases. Migrations away from legacy systems into new applications Review, support, feedback and size requirements produced by the Analysis team. Manage your delivery commitments within the relevant sprints to ensure timely and quality delivery of More ❯

environment Provide technical direction and architectural oversight for complex projects Stay hands-on with coding, problem-solving, and technical delivery Shape the technology roadmap, working across legacy systems and cutting-edge AI projects Drive technical standards and ensure delivery against ambitious targets Work closely with leadership to translate business needs into technical solutions Technical Stack & Experience Strong … PHP experience (Laravel framework) Database expertise: MySQL, Elasticsearch Front-end knowledge: Vue.js or similar modern frameworks Understanding of DevOps practices (GitHub, Terraform advantageous) AI systems experience is a plus Previous experience in scaling tech companies or start-ups highly valuable What's On Offer Base salary 70,000 - 85,000 + equity Remote-first culture + 1 day a … week in the London office Opportunity to join at a pivotal scaling moment with rapid career progression potential Work on diverse projects from legacy optimisation to cutting-edge AI deployment This is your chance to step into a leadership role where you can directly influence both technology direction and team culture. As the successful candidate, you will thrive More ❯

environment Provide technical direction and architectural oversight for complex projects Stay hands-on with coding, problem-solving, and technical delivery Shape the technology roadmap, working across legacy systems and cutting-edge AI projects Drive technical standards and ensure delivery against ambitious targets Work closely with leadership to translate business needs into technical solutions Technical Stack & Experience Strong … PHP experience (Laravel framework) Database expertise: MySQL, Elasticsearch Front-end knowledge: Vue.js or similar modern frameworks Understanding of DevOps practices (GitHub, Terraform advantageous) AI systems experience is a plus Previous experience in scaling tech companies or start-ups highly valuable What's On Offer Base salary £70,000 - £85,000 + equity Remote-first culture + 1 day a … week in the London office Opportunity to join at a pivotal scaling moment with rapid career progression potential Work on diverse projects from legacy optimisation to cutting-edge AI deployment This is your chance to step into a leadership role where you can directly influence both technology direction and team culture. As the successful candidate, you will thrive More ❯

environment Provide technical direction and architectural oversight for complex projects Stay hands-on with coding, problem-solving, and technical delivery Shape the technology roadmap, working across legacy systems and cutting-edge AI projects Drive technical standards and ensure delivery against ambitious targets Work closely with leadership to translate business needs into technical solutions Technical Stack & Experience • Strong … PHP experience (Laravel framework) • Database expertise: MySQL, Elasticsearch • Front-end knowledge: Vue.js or similar modern frameworks • Understanding of DevOps practices (GitHub, Terraform advantageous) • AI systems experience is a plus • Previous experience in scaling tech companies or start-ups highly valuable What's On Offer • Base salary £70,000 - £85,000 + equity • Remote-first culture + 1 day a … week in the London office • Opportunity to join at a pivotal scaling moment with rapid career progression potential • Work on diverse projects from legacy optimisation to cutting-edge AI deployment • This is your chance to step into a leadership role where you can directly influence both technology direction and team culture. As the successful candidate, you will thrive More ❯

Overview Grow with the challenge At the time of inception, cloud-based systems and API fluency were new. But that didn't scare us. We waved goodbye to legacy systems and embraced modern technology - where our true innovation began and didn't stop. No hierarchy, no egos. Just a spirit of collaboration that flows right throughout … bank. If this excites you, we're seeking experienced Software Engineers to join our team. You'll get to work on impactful projects, develop and maintain our cloud-based systems and APIs and collaborate with a talented team of professionals. If you are motivated by this and want to contribute to a forward-thinking company, we encourage you to More ❯

Role: Senior Database Architect Type: Contract Location: London, UK (Hybrid) Minimum years of experience: 10+ years Job Detail DB Architect having experience on data migration from legacy systems DB2 to modern cloud native databases like Amazon Aurora PostgreSQL click apply for full job details More ❯

role will define the integration strategy and patterns, lead the development of integrations using Microsoft Azure PaaS, and support the interim and long-term transition from legacy systems to cloud-native platforms. This position requires hands-on technical leadership, strategic planning, and strong team management skills. - Strong hands-on experience in designing and delivering integrations using Microsoft More ❯

role will define the integration strategy and patterns, lead the development of integrations using Microsoft Azure PaaS, and support the interim and long-term transition from legacy systems to cloud-native platforms. This position requires hands-on technical leadership, strategic planning, and strong team management skills. - Strong hands-on experience in designing and delivering integrations using Microsoft More ❯

role will define the integration strategy and patterns, lead the development of integrations using Microsoft Azure PaaS, and support the interim and long-term transition from legacy systems to cloud-native platforms. This position requires hands-on technical leadership, strategic planning, and strong team management skills. - Strong hands-on experience in designing and delivering integrations using Microsoft More ❯

role will define the integration strategy and patterns, lead the development of integrations using Microsoft Azure PaaS, and support the interim and long-term transition from legacy systems to cloud-native platforms. This position requires hands-on technical leadership, strategic planning, and strong team management skills. - Strong hands-on experience in designing and delivering integrations using Microsoft More ❯

is an exciting opportunity to join a forward-thinking global organisation at a pivotal time of transformation, as they modernise their communication platforms and migrate from Legacy systems to cloud-based solutions. The Role As a Unified Communications Engineer, you'll be the technical lead for enterprise-wide communications platforms, including Microsoft Teams (chat, conferencing, calling), Microsoft More ❯

is an exciting opportunity to join a forward-thinking global organisation at a pivotal time of transformation, as they modernise their communication platforms and migrate from legacy systems to cloud-based solutions. The Role As a Unified Communications Engineer, you’ll be the technical lead for enterprise-wide communications platforms, including Microsoft Teams (chat, conferencing, calling), Microsoft More ❯

Lead on key campaign streams and work closely with Marketing and Operations teams TOOLS & TECH SQL (core to the role) Salesforce Marketing Cloud (SFMC) – plus some legacy systems Power BI – moving into more advanced reporting and dashboarding WHO YOU’LL WORK WITH You’ll be reporting into a Head of CRM Analytics who’s hands-on, collaborative More ❯

Lead on key campaign streams and work closely with Marketing and Operations teams TOOLS & TECH SQL (core to the role) Salesforce Marketing Cloud (SFMC) – plus some legacy systems Power BI – moving into more advanced reporting and dashboarding WHO YOU’LL WORK WITH You’ll be reporting into a Head of CRM Analytics who’s hands-on, collaborative More ❯

Lead on key campaign streams and work closely with Marketing and Operations teams TOOLS & TECH SQL (core to the role) Salesforce Marketing Cloud (SFMC) – plus some legacy systems Power BI – moving into more advanced reporting and dashboarding WHO YOU’LL WORK WITH You’ll be reporting into a Head of CRM Analytics who’s hands-on, collaborative More ❯

Lead on key campaign streams and work closely with Marketing and Operations teams TOOLS & TECH SQL (core to the role) Salesforce Marketing Cloud (SFMC) – plus some legacy systems Power BI – moving into more advanced reporting and dashboarding WHO YOU’LL WORK WITH You’ll be reporting into a Head of CRM Analytics who’s hands-on, collaborative More ❯

Integration Developer - Salesforce Education Cloud-Student Systems Implementation Integration Developer with experience of working on large enterprise-scale programmes, ideally in Higher Education, is needed to support a Salesforce Education Cloud, for our higher education client. The role will focus on building and support integrations between new and existing systems using Microsoft Azure PaaS components to develop modular … reusable, and secure integration components aligned with canonical data models and modern API-first principles. Integration Developer- Salesforce Education Cloud-Student Systems Implementation Essential Experience Proven experience as an Integration Developer on enterprise-scale programmes, preferably in Higher Education. experience with Azure PaaS integration tools: Logic Apps, Functions, API Management, Service Bus, Event Grid Experience building and managing REST … APIs and implementing API-first integration designs Experience integrating cloud systems (Salesforce, Canvas LMS, or other SaaS platforms. Experience with SITS or other legacy student systems, particularly around data integration and synchronisation. Good understanding of CI/CD pipelines, automated testing, and Infrastructure-as-Code (ARM, Bicep, Terraform) Proficient in C#, PowerShell, JavaScript, or equivalent languages More ❯

research that shape product and marketing decisions. Partner with Product, Design, Data, Engineering, and Marketing to embed the customer voice into strategy and execution. Overhaul and elevate a legacy team through hiring, mentorship, and organisational change. Establish scalable frameworks, processes, and tools to maximise research effectiveness and influence. Act as a trusted advisor to senior stakeholders, influencing decisions … change, and align stakeholders across functions. Experience partnering closely with Product, Marketing, and Design teams to deliver customer-centric outcomes. Resilient and resourceful: able to navigate legacy systems and inspire transformation. Demonstrated success managing managers and/or senior ICs within high-performing teams. Skilled in storytelling, data synthesis, and presenting clear, compelling insights to senior leadership. More ❯