1 to 25 of 26 Legacy Systems Jobs in Hampshire

senior software engineer

Hiring Organisation
V3 Recruitment
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
will be asked to shape epics and tickets yourself - always aligned with the CTO's direction Build new features, fix problems in old systems and keep everything running fast and reliable Work on a mix of greenfield projects and legacy systems - both matter and both need … your skills without arrogance Confident resilient pragmatic and results-driven Clear judgement and able to balance speed with quality Experienced in building new systems and fixing legacy Keeps calm under pressure and still delivers Raises the bar for those around them by example Working Style Execute ...

Senior Business Intelligence Developer

Hiring Organisation
Tenth Revolution Group
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£55000 - £65000/annum
dashboards and reports to provide actionable insights. Designing and developing robust ETL solutions using Azure Data Factory and related services. Managing integrations between internal systems and external partners. Supporting data migration from legacy systems into the new platform. Collaborating with technical and non-technical stakeholders ...

Senior Software Engineer - Python, ML & AI Systems

Hiring Organisation
Cornspring
Location
Southampton, UK
Employment Type
Full-time
finance. Our clients operate at the highest levels of global markets, managing billions in assets, yet they remain constrained by legacy systems that are slow, fragmented, and outdated. Cornspring is redefining Family Office services by applying state-of-the-art generative AI and Large Language Models … looking for an exceptional Senior Software Engineer with a strong ML and LLM focus, and the ability to build production-grade AI systems end-to-end. This is a pivotal role in which you will shape core system architecture, design and deploy AI-driven features, and work hands ...

Senior Software Engineer - Python, ML & AI Systems

Hiring Organisation
Cornspring
Location
Portsmouth, Hampshire, UK
Employment Type
Full-time
finance. Our clients operate at the highest levels of global markets, managing billions in assets, yet they remain constrained by legacy systems that are slow, fragmented, and outdated. Cornspring is redefining Family Office services by applying state-of-the-art generative AI and Large Language Models … looking for an exceptional Senior Software Engineer with a strong ML and LLM focus, and the ability to build production-grade AI systems end-to-end. This is a pivotal role in which you will shape core system architecture, design and deploy AI-driven features, and work hands ...

Staff Software Engineer

Hiring Organisation
Definely
Location
Southampton, UK
Employment Type
Full-time
most complex challenges in our stack. This includes modernising and scaling our .NET backend services, improving system reliability and observability, and designing modular systems that power AI-driven document workflows deeply integrated into Microsoft Word and the broader Microsoft ecosystem. This role is ideal for someone who thrives … designing systems at scale, leading cross functional technical initiatives, and mentoring teams through change. You will have significant influence over technical direction, infrastructure choices, and how we evolve from legacy patterns to a modern, cloud-native architecture. What you'll do: Technical Leadership & Strategy Define and drive ...

Senior DevOps Engineer

Hiring Organisation
Lloyds Banking Group
Location
Southampton, UK
Employment Type
Full-time
fostering a culture of continuous improvement and knowledge sharing. The Core Banking Platform team work together to curate and deliver the future core banking systems for the UK's largest retail bank such as setting up a new Cloud native Microservices platform that will function as the epicenter … tools and Cloud technologies. Day to day, you will: * Contribute to the provisioning of data products to support an exit from legacy systems to a key strategic platform * Design and Architectural Planning: Lead the design and architectural planning of our infrastructure, focusing on scalability, reliability, and performance. ...

Senior DevOps Engineer

Hiring Organisation
Lloyds Banking Group
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
fostering a culture of continuous improvement and knowledge sharing. The Core Banking Platform team work together to curate and deliver the future core banking systems for the UK's largest retail bank such as setting up a new Cloud native Microservices platform that will function as the epicenter … tools and Cloud technologies. Day to day, you will: * Contribute to the provisioning of data products to support an exit from legacy systems to a key strategic platform * Design and Architectural Planning: Lead the design and architectural planning of our infrastructure, focusing on scalability, reliability, and performance. ...

Lead Data Engineer - Microsoft Fabric - Hybrid - £75k

Hiring Organisation
Tenth Revolution Group
Location
Winchester, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£65000 - £75000/annum
deliver cutting-edge cloud data platforms for our clients. In this role, you'll be at the heart of transforming legacy systems into scalable, production-grade architectures using Microsoft Fabric. You'll build complex ingestion pipelines, craft metadata-driven transformation layers, optimise data workflows, and deliver high ...

Senior Data Engineer

Hiring Organisation
Tenth Revolution Group
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum
warehouses, and ETL/ELT processes. Designing scalable data solutions and models for reporting in Power BI. Supporting data migration from legacy systems into the new platform. Ensuring data models are optimised for performance and reusability. To be successful in this role, you will have: Hands ...

Senior Data Engineer

Hiring Organisation
Tenth Revolution Group
Location
Havant, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum
warehouses, and ETL/ELT processes. Designing scalable data solutions and models for reporting in Power BI. Supporting data migration from legacy systems into the new platform. Ensuring data models are optimised for performance and reusability. To be successful in this role, you will have: Hands ...

Sage Intacct Consultant

Hiring Organisation
Robert Half
Location
Southampton, UK
Employment Type
Full-time
Seeking a skilled Sage Intacct Consultant to assist with the implementation, configuration, and data migration of the Sage platform as part of an ongoing systems transformation project. This role will bridge the gap between IT operations and business users, ensuring a smooth transition to the new environment. Role … business, working closely with internal stakeholders and external vendors. Assist in data migration activities — cleansing, mapping, validation, and import from legacy systems into Sage. Provide technical and user support, troubleshooting issues during implementation and post-go-live. Work with IT and Finance teams to ensure system integrations ...

Sage Intacct Consultant

Hiring Organisation
Robert Half
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
Seeking a skilled Sage Intacct Consultant to assist with the implementation, configuration, and data migration of the Sage platform as part of an ongoing systems transformation project. This role will bridge the gap between IT operations and business users, ensuring a smooth transition to the new environment. Role … business, working closely with internal stakeholders and external vendors. Assist in data migration activities — cleansing, mapping, validation, and import from legacy systems into Sage. Provide technical and user support, troubleshooting issues during implementation and post-go-live. Work with IT and Finance teams to ensure system integrations ...

Technical Lead (Perm, UK, Remote + Travel)

Hiring Organisation
Nearform
Location
Portsmouth, Hampshire, UK
Employment Type
Full-time
world's most complex digital problems, along with our collaborative, people-first approach, enables enterprises to build breakthrough products and modernise legacy systems by unleashing the power of AI. Today, our team of 500 experts in 20+ countries is trusted by leading enterprises including Lululemon, Puma ...

Full Stack Engineer

Hiring Organisation
Langham Recruitment
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
Software Developer, you'll be part of a dynamic team building and enhancing innovative applications. You'll contribute to modernising legacy systems, scaling core products, and improving overall software quality. Your role will involve: Developing and maintaining backend services using C#, .NET Framework 4.7+, and .NET 6+ ...

Senior Azure Infrastructure Engineer

Hiring Organisation
Computer Futures
Location
Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £100,000 per annum
Join a tech-driven organisation where your expertise shapes performance, reliability, and innovation. You'll be the driving force behind modernising legacy systems, accelerating delivery, and empowering developers with world-class tooling. Your Mission As a Senior Infrastructure Engineer , you will: Architect & manage Azure infrastructure using … Deep understanding of profiling, benchmarking, and optimisation Bonus Skills: IaC (ARM, Bicep, Terraform) Cloud networking (VNets, firewalls, load balancers) SQL Server performance tuning Legacy app modernisation in Azure Why You'll Love It Here Remote-First Culture - Work anywhere in the UK Flexible Hours - Fit work around your ...

Software Engineer

Hiring Organisation
mthree
Location
Southampton, UK
Employment Type
Full-time
/Regulatory Technology team within a leading global investment bank. You'll work on business-critical regulatory reporting platforms, helping modernise legacy systems and build strategic, cloud-based data solutions used across the firm. You'll be part of a collaborative Agile squad focused on Java services ...

Software Engineer

Hiring Organisation
mthree
Location
Portsmouth, Hampshire, UK
Employment Type
Full-time
/Regulatory Technology team within a leading global investment bank. You'll work on business-critical regulatory reporting platforms, helping modernise legacy systems and build strategic, cloud-based data solutions used across the firm. You'll be part of a collaborative Agile squad focused on Java services ...

Fabric Data Engineer

Hiring Organisation
Tenth Revolution Group
Location
Winchester, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £75000/annum
support advanced analytics and reporting. You'll work across Microsoft Fabric, Power BI, and related technologies, enabling organisations to modernise legacy systems and adopt best-practice data engineering patterns. This is a hands-on, client-facing role where you'll lead technical conversations and deliver robust, maintainable ...

Supply Chain OR Manufacturing ERP Implementation Specialist

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Fareham, Hampshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £700 per day, Negotiable
need to succeed Proven experience in ERP implementation projects, ideally Oracle ERP Cloud or Oracle E-Business Suite (although other advanced ERP systems can be considered). Strong understanding of manufacturing and/or supply chain processes. Expertise in change management and transition planning, in particular supporting people … process standards. Excellent stakeholder engagement and communication skills. Analytical mindset with attention to detail and problem-solving ability. Familiarity with legacy BPCS systems is advantageous but not essential. Comfortable working in a fast-paced, change-driven environment. What you'll get in return Attractive rate to suit ...

Contract CTO

Hiring Organisation
Spectrum IT Recruitment
Location
Southampton, Hampshire, United Kingdom
Employment Type
Contract
digital and data transformation. Fractional engagement may also be considered for the right profile of contractor. The organisation is integrating multiple legacy systems, modernising its internal technology estate, and launching new customer-facing digital products. This includes a new SaaS platform designed to enhance customer experience … integration programme across software, data, and infrastructure. Establish a cohesive IT and digital operating model that supports future scale. Oversee delivery of internal systems upgrades, data integration and the build of new customer-facing products, including a SaaS platform leveraging the organisation's existing data assets. Provide a roadmap ...

Senior Finance ERP Onboarding Consultant

Hiring Organisation
Zanda
Location
Southampton, UK
Employment Type
Full-time
days a week in Central London. What experiences you will gain Lead complex implementation projects for multinational clients migrating from Legacy ERP systems to an AI Finance Platform Apply financial systems expertise to navigate complex client environments and ensure smooth onboarding and transitions Build trusted relationships … What background should you have before you press apply! Qualified Accountant (ACA, ACCA, CIMA) Experience supporting clients and managing multiple projects Experience implementing finance systems and passionate about modernising finance systems Deep understanding of core accounting principles and how they translate into system requirements Confident and credible ...

Senior Finance ERP Onboarding Consultant

Hiring Organisation
Zanda
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
days a week in Central London. What experiences you will gain Lead complex implementation projects for multinational clients migrating from Legacy ERP systems to an AI Finance Platform Apply financial systems expertise to navigate complex client environments and ensure smooth onboarding and transitions Build trusted relationships … What background should you have before you press apply! Qualified Accountant (ACA, ACCA, CIMA) Experience supporting clients and managing multiple projects Experience implementing finance systems and passionate about modernising finance systems Deep understanding of core accounting principles and how they translate into system requirements Confident and credible ...

Principal Backend Engineer - Matchmaking

Hiring Organisation
ESL FACEIT Group - EFG
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
elite individual contributor who can look at this scale not just as a traffic challenge, but as an abstraction challenge. You will design the systems that define how our players compete, ensuring our architecture is decoupled, extensible, and capable of handling the next 100 million users. What You Will … designing, developing, and deploying robust APIs and microservices in production. Golang experience is highly preferred; Architectural Vision: Proven experience re-architecting legacy systems into distributed, modern microservices. You understand Domain-Driven Design (DDD) and know how to draw the boundaries between services correctly; Scaling Instincts: You understand ...

Senior Application Support Analyst

Hiring Organisation
Randstad Digital
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
sessions (sequence gaps, rejects, drops) Work with Network and Infrastructure teams on VPNs and cross-connects Support migration of legacy trading systems Required Experience 3–5 years in FIX Connectivity, Integration, or Trading Production Support Strong FIX Protocol knowledge (session & application layers) Linux/Unix experience with ...

Senior Systems Engineer

Hiring Organisation
Legal 500
Location
Portsmouth, Hampshire, UK
Employment Type
Full-time
this depth of global research and data on law firms, lawyers and their clients. About the Role We're looking for a Senior Systems Engineer to take ownership of our modern cloud environment and lead key infrastructure projects. This is a hands-on technical role where you'll design … deliver practical solutions across Microsoft 365,Azure/Entra ID, and core infrastructure, while helping us retire legacy systems. You'll act as a role model for junior engineers and play a pivotal part in shaping our technology roadmap. What You'll Do Lead administration and optimisation ...