15 of 15 Legacy Systems Jobs in Sheffield

.NET framework, capable of designing secure and scalable architectures while providing leadership across multiple development teams. They will drive modernisation of legacy systems, support the delivery of new features and enhancements, and foster strong alignment between technical strategy and user needs. With a strong customer focus … translate business needs into clear technical designs and solutions. Experience conducting code reviews and establishing coding standards. Proven background in modernising legacy systems and building long-term technical strategies. Experience with at least two of the following: ORM frameworks (NHibernate, Entity Framework, etc.) SQL Server or other ...

help maintain and improve the business' infrastructure, security posture, and release processes across multiple systems. Key responsibilities Modernise and rebuild legacy PHP systems into Symfony. Deliver new platform features aligned to business and clinical requirements. Own/support release management across three systems (public website, admin … queries and staff IT support). What we're looking for Strong PHP/web engineering background with real experience modernising legacy systems (Symfony ideal). Confident across DevOps fundamentals: CI/CD, releases, scripting/automation. Linux (Ubuntu) admin experience and comfort maintaining core web services. ...

platforms, applications and data landscapes. We are seeking an experienced Enterprise Architect to define and implement a group-wide architecture strategy that unifies these systems within a cohesive, scalable and future-ready environment, enabling us to accelerate innovation in a secure and scalable manner. We're seeking strong expertise … Develop and maintain a unified enterprise architecture framework that spans all acquired businesses Define standards and blueprints for integration, data architecture, and core enterprise systems Integration & Consolidation Lead the design of integration strategies to connect disparate platforms, applications, and processes across the group and with external third-parties Oversee ...

integration layers (OIC) to curate clean, well-modelled datasets. Contribute to data migration activities, ensuring accuracy, integrity and auditability throughout transitions from legacy systems. Apply security-by-design, access controls and logging appropriate for regulated MOD environments. Operate in Agile delivery squads with APEX devs, data engineers, integration ...

cloud architectures. Apply architecture principles, standards, and best practices to ensure robust digital solution delivery. Create roadmaps for smooth migration from legacy systems to modern cloud architectures. Provide thought leadership on emerging technologies and industry trends. Lead workshops and presentations to communicate architectural and technical concepts effectively. ...

insight Skills & Experience (Essential) 5+ years' experience designing and delivering solutions using the .NET framework Strong background in architecting secure, scalable, and high-performing systems Hands-on development experience with C# and modern .NET technologies Ability to translate business and user needs into clear technical solutions Experience conducting code … reviews and setting development standards Proven experience modernising legacy systems and defining long-term technical direction Experience with at least two of the following: ORM frameworks (NHibernate, Entity Framework, etc.) SQL Server or other relational databases (e.g. MySQL, PostgreSQL) DevExpress components Desirable Experience with tools such ...

across both Azure and AWS environments. Lead infrastructure projects including cloud migrations, cost optimizations, disaster recovery planning, and security hardening. Modernize legacy systems, working across inherited Azure environments with .NET and Ruby stacks. Drive IaC adoption, particularly Terraform, across all environments. Collaborate with engineering leads to ensure … Infrastructure-as-Code (IaC) practices. Solid experience with CI/CD, observability tooling, incident response, and automated deployments. Comfort navigating and improving legacy infrastructure and multi-language environments (.NET and Ruby). A security-first mindset with experience implementing secure cloud architectures. A proactive approach to cost management ...

Company At LabLogic Systems Ltd, we're pioneers in the Life Science, PET/Nuclear Medicine, and Radiation Safety sectors. We're committed to excellence, delivering high-quality products and service while fostering a positive work culture grounded in our core values: Passionate and driven, Everyone is accountable, Respectful … creating an exceptional workplace. Join us in a collaborative, supportive team, where benefits like our annual Center Parcs trip foster positive working relationships. LabLogic Systems Ltd is not just a workplace; it's a rewarding journey in a globally acclaimed organisation. The Product LabLogic provides two specialist radiopharmacy Laboratory ...

Data Engineer is required to support a large-scale public sector digital transformation programme currently underway. The programme focuses on migrating data from legacy platforms into modern, cloud-based data environments. Key Responsibilities Design, develop and support data pipelines as part … cloud migration initiative Build and maintain data processing and transformation workflows using Databricks Support the migration of data from legacy systems into cloud-based platforms Work closely with architects, project managers and delivery teams to meet programme objectives Contribute to the modernisation of ageing enterprise data platforms ...

Responsibilities: Lead end-to-end Microsoft 365 and Copilot deployment and migration projects. Manage data migration from legacy systems to M365 using appropriate tools and methodologies. Collaborate with business and technical teams to define project requirements, timelines, and deliverables. Ensure data integrity, compliance, and security throughout migration ...

performance improvements. This WinForms Developer role involves understanding existing codebases, implementing new features, improving stability, and ensuring smooth day-to-day operation of established systems while working closely with technical stakeholders. Skills & Experience: Strong C#/.NET development Proven WinForms experience Experience working on and maintaining legacy systems Solid understanding of object-oriented design Experience with SQL Server DevExpress experience desirable but not essential Ability to work independently and deliver to deadlines If you would like to apply for this role and are looking for a long-term, part-time engagement, this opportunity would ...

resource, operating between a Senior Developer and a Technical Architect. Lead the technical re-engineering and business transformation efforts, migrating wholesale legacy systems to Dynamics 365 CRM. Focus on CRM-centric development and architecture to support the 'inside out' transformation. Design and implement solutions to expand ...

related IAM services. Define and execute IAM strategy aligned to Zero Trust principles. Support large-scale IAM adoption, modernisation, and migration from legacy identity platforms. Drive proactive use of Microsoft Defender for Identity to enhance threat detection and identity-based risk management. Partner with security leadership to ensure … equivalent. 12+ years IAM experience including enterprise consulting and large-scale deployments. Experience modernising IAM platforms and migrating from legacy identity systems. Strong background in presenting IAM strategy and architecture to senior leadership. If you are a senior identity specialist with exceptional Microsoft Entra expertise and the ability ...

architecture and the engineering culture from an early stage. We're looking for a Senior Software Developer who enjoys solving complex problems, designing scalable systems, and taking real ownership of what they build. If you want autonomy, influence, and the chance to work on meaningful technology without legacy … baggage, this role is for you. What's great about this position Work on a brand-new platform, not a rewrite or a legacy system You'll have a real voice in technical decisions, architecture, and tooling Build cloud-first, microservices-based solutions designed to scale ...

January 2026 This role will focus on Azure Databricks, revamping Salesforce integrations, modernising data pipelines, and building a new integration layer to replace legacy systems. Key Responsibilities: Lead development and optimisation of Azure Databricks pipelines and workflows. Work with Azure Data Factory and Azure Data Streaming to ingest … making application-level changes where required. Experience with Salesforce integrations (revamp, rebuild, optimisation). Previous involvement in building integration layers and migrating from legacy systems. Contract Details: Length: 2 months (initially) Rate: £250-£300 (Outside IR35) Location: Fully remote (UK-based only) If you're a Databricks expert ...