11 of 11 Permanent Legacy Systems Jobs in Buckinghamshire

fast-growing, acquisition-led organisation. Your core mission will be to migrate operational (CRM) and in time, finance data from multiple legacy systems into Microsoft Dynamics, repeatedly, reliably, and under pressure. You will work across: Bespoke, undocumented, and at times, home-grown systems SaaS platforms (e.g. … with minimal hand-holding, in a demanding BAU + project environment. What Youll Be Doing For each acquired business, analyse legacy source systems (often undocumented) Understand and interrogate data models at source and target (D365/Dynamics) Perform source-to-target mapping Extract, cleanse, transform, and load ...

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 ...

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 ...

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+ ...

recruiting for an experienced Technical Consultant to support a complex banking accreditation and compliance programme for a retail organisation. Key responsibilities include: Reviewing existing systems, processes, and documentation against banking accreditation standards Performing functional and technical gap analysis, owning remediation recommendations Reverse engineering legacy applications to understand … transactional data generation and file outputs consumed by banking systems Assessing payment, security, and integration solutions for compliance Supporting legacy system enhancement vs replacement decision-making Required experience: Knowledge of banking accreditation, PCI DSS/payment compliance COBOL, CICS, Datacom DB Ability to translate regulatory and technical ...

/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 ...

Hybrid Integration Design: Lead the design and implementation of data solutions that integrate Azure cloud-native services with legacy SQL Server systems and third-party APIs and data feeds. Data Modelling and Standards: Develop and enforce data modelling standards (conceptual, logical, physical) across platforms. Promote reuse, consistency … decisions. Experience and Skills Required: Experience with Data Architecture and governance, public-cloud platforms (Azure, AWS, GCP) , SQL Server, data integration with third-party systems, ideally Microsoft Fabric Experience with data modelling and metadata management Relevant degree or post-graduate qualification, ideally certification in Cloud Architecture and Data Management ...

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 ...

least 3 to 5 years experience as a Data Analyst. Provide support to the data migration Lead in the data migration of legacy data into NetSuite edERP in accordance with the project plan Review the legacy data to identify data quality issues Review non-legacy … required. Must have at least 3 to 5 years experience of data analysing and/or cleansing and at least 3+ years experience of systems implementation. Have experience of extraction & cleansing of legacy data. Being involved in at least 2 major Data migration projects. Should have strong ...

strategy. Define and implement security standards, policies, and best practices for cloud infrastructure, SaaS applications, and internal tooling. Engineer, implement, and continuously tune security systems (SIEM, EDR, etc.) for continuous threat detection and automated response. Lead technical remediation efforts, working with engineering teams to implement fixes for vulnerabilities … automation skills (e.g. Python, PowerShell, Terraform scripts, Yara) to implement security automations, detection rules, and guardrails. Solid experience with designing, implementing, and tuning systems for incident response, detection engineering, and vulnerability management. Strong understanding of secure software development lifecycle (SDLC), and ability to work closely with dev/ ...

strategy. Define and implement security standards, policies, and best practices for cloud infrastructure, SaaS applications, and internal tooling. Engineer, implement, and continuously tune security systems (SIEM, EDR, etc.) for continuous threat detection and automated response. Lead technical remediation efforts, working with engineering teams to implement fixes for vulnerabilities … automation skills (e.g. Python, PowerShell, Terraform scripts, Yara) to implement security automations, detection rules, and guardrails. Solid experience with designing, implementing, and tuning systems for incident response, detection engineering, and vulnerability management. Strong understanding of secure software development lifecycle (SDLC), and ability to work closely with dev/ ...