1 to 25 of 471 Legacy Systems Jobs

the design, integration, and delivery of mission-critical solutions for Department of Defense (DoD) projects. The ideal candidate will have deep understanding in DoD Enterprise Architecture, legacy systems modernization, cybersecurity policies and frameworks (e.g., RMF, DISA STIGs, NIST 800-53), and emerging technologies such as Artificial Intelligence (AI) in alignment with DoD AI policies. They will collaborate … the ability to navigate complex DoD environments to deliver cutting-edge solutions. Key Responsibilities • Solution Architecture Design: Develop scalable and resilient architectures for DoD projects, integrating legacy systems with modern technologies while ensuring compliance with DoD cybersecurity policies. • Enterprise Architecture Leadership: Lead the design and optimization of DoD Enterprise Architecture, ensuring alignment with DoD standards, including DISA … RMF, and NIST 800-53 frameworks. • Legacy Systems Integration: Modernize and integrate legacy DoD systems with new platforms and emerging technologies, maintaining operational integrity and enhancing mission readiness. • Cybersecurity Compliance: Ensure solutions adhere to DoD cybersecurity policies, including FISMA, DISA STIGs, and RMF guidelines for Information Assurance (IA). • AI Strategy Development: Design and More ❯

Role:HR Data Administrator/AnalystLocation:Coventry Contract: 6 Months (3 Days A Week)Day Rate: Up to £200/day (All in) Support Smarter HR Systems with One of Europe’s Leading Distributors We’re working with a major European distributor undergoing a transformation of their HR systems and processes. They’re now looking for a part … time HR Data Administrator/Analyst to support the HR Systems team with data management, reporting, and compliance. This is a great fit for someone who enjoys cleaning, organising, and handling sensitive HR data and who’s confident navigating legacy systems and older file structures. What You’ll Be Doing Managing HR data across legacy systems, backup drives, and SharePoint Supporting HR with ad hoc data queries and reporting tasks Locating, verifying and cleaning historical HR records Maintaining compliance and integrity across sensitive employee data Identifying gaps, errors, or inconsistencies using logical reasoning What They’re Looking For Experience handling HR data or other confidential records Familiarity with older file systems More ❯

tools to accelerate and enhance the migration process, and we’re looking for developers who are excited by the opportunity to work at the intersection of legacy systems, modern development, and AI-assisted engineering. Key Responsibilities - Collaborate with the existing team to re-engineer Oracle PLSQL stored procedures into C# services. - Design and implement .NET-based components … that integrate with both legacy PHP systems and new PostgreSQL databases. - Work closely with business analysts and stakeholders to ensure functional parity and identify opportunities for enhancement. - Participate in the design of a hybrid architecture that supports phased migration. - Use AI-assisted tools to analyze, translate, and optimize legacy code. - Support BAU operations during the … Required SkillsExperience - 5+ years of experience in .NET/C# development, with a strong focus on backend services and data access layers. - Proven experience in migrating legacy systems, especially from Oracle to PostgreSQL or similar. - Strong understanding of PL/SQL and experience translating stored procedures into application logic. - Familiarity with PostgreSQL, including performance tuning and SQL More ❯

tools to accelerate and enhance the migration process, and we’re looking for developers who are excited by the opportunity to work at the intersection of legacy systems, modern development, and AI-assisted engineering. Key Responsibilities - Collaborate with the existing team to re-engineer Oracle PLSQL stored procedures into C# services. - Design and implement .NET-based components … that integrate with both legacy PHP systems and new PostgreSQL databases. - Work closely with business analysts and stakeholders to ensure functional parity and identify opportunities for enhancement. - Participate in the design of a hybrid architecture that supports phased migration. - Use AI-assisted tools to analyze, translate, and optimize legacy code. - Support BAU operations during the … Required SkillsExperience - 5+ years of experience in .NET/C# development, with a strong focus on backend services and data access layers. - Proven experience in migrating legacy systems, especially from Oracle to PostgreSQL or similar. - Strong understanding of PL/SQL and experience translating stored procedures into application logic. - Familiarity with PostgreSQL, including performance tuning and SQL More ❯

in cloud architecture and implementation. • Bachelor's degree in computer science, Engineering, related field, or equivalent experience. • Substantial hands-on technical experience with mainframe, non-x86 legacy systems and with technologies such as COBOL, JCL, CICS, DB2 for z/OS, Assembler, PL/I, Java, Rexx, flat/sequential files, GDGs, and VSAM. • Proven track record … in a technical lead role migrating workloads from mainframe and non-x86 legacy systems to distributed x86 infrastructures either on-premises or on to the Cloud. • Deep experience integrating mainframe and non-x86 legacy systems with distributed Linux-based or Windows-based x86 servers. PREFERRED QUALIFICATIONS • Strong communication skills with the ability to explain … both technical and non-technical audiences • AWS associate or professional level certifications (e.g., Solutions Architect Associate or Professional, DevOps Engineer Professional) preferred • Experience leading customers with mainframe and legacy modernization initiatives. • Experience with tools and methodologies used to migrate mainframe workloads via hardware/middleware emulation, automated code conversion, and re-platforming. • Experience with analyzing on-premises mainframe More ❯

for ensuring all master data is maintained and managed with a clear focus on data quality Update and maintain account information - working in Infor and any legacy systems to manage account data Data is maintained in line with company policies and that any changes or discrepancies are identified and updated Mitigate business risks Manage onboarding process for … accounts to ensure data accuracy and key stakeholder communication New account set up of documents including Amber Road checks, ensuring CRM contacts are created Maintain product data within eCommerce systems and preparing item data for product registrations and any future solutions to ensure all product information is available to customers to order Update and maintain item data in line … with new launches and any changes as required to ensure continued availability of all products to market Update and maintain price books within Infor and legacy systems for all brands, including bespoke SLAs for customers To maintain Master Data within Infor (ERP) and legacy systems, to include account, contact, pricing, item, pack in, add More ❯

support of the F-22 Program Office mission. The successful candidate will support the F-22 Program by providing the following skills/activities in support of F-22 Systems Security operations; you will: • Provide cybersecurity support, including development and technical review of Systems Security Plans (SSPs), cybersecurity strategy, cybersecurity test strategy, and other SSE documents. • Support F … implemented as documented in the NIST SP 800-53, DoDI 8500.1, and/or JSIG. • Evaluate the ability of the security architecture of designs and solutions to defend weapon systems and critical networks against malicious and non-malicious exploitation throughout the full acquisition life cycle of portfolio programs. • Support the identification of current and future cyber analyses to understand … feasibility of mitigation strategies for legacy and support systems. The Contractor shall support and review existing and future cyber vulnerability assessments of new and legacy systems and recommend prioritized mitigation strategies. • Apply knowledge of industry cyber resiliency strategies to F-22 cyber resiliency efforts. • Contribute to and participate in Aircraft Cyber Threat Working Groups. REQUIREMENTS More ❯

Business Systems Expert for PGMS Location: Royston, UK World-changing careers, enabled by Johnson Matthey. With more than 200 years history, join us and help to accelerate the transition to net-zero! As a Business Systems Expert, you'll contribute to JM's mission as a world leader in sustainable technology, transforming energy and reducing carbon emissions for … a cleaner, brighter future. As a Business Systems Expert for PGMS, you will help drive our goals by: Engage with the business to identify and implement IT solutions to meet complex Business requirements. Lead collaboration across multiple functional areas such as Finance, Supply Chain, Commercial and Operations to determine the optimal solution. Continuously collaborate with cross-functional project team … to strategic planning and execution of IT projects, ensuring alignment with PGMS multiyear roadmap and legacy system risks Lead continuous improvement initiatives across global legacy systems, coordinating efforts and aligning with MOM-level strategies Provide leadership and subject matter expertise to guide PGMS teams, Business Analysts, and management on system risks and priorities Oversee system More ❯

Location: Columbia, MD Clearance Required: TS/SCI w/Polygraph System Engineer 1 Salary: $153,000 - $170,900 Description: The Data Team is focused on modernizing business IT systems that currently span multiple databases, user interfaces, and data formats. The team will initially focus on documenting existing systems and creating a plan to migrate to a new … platform. The second phase includes the migration of business data from the legacy systems to the new platform. The SE1 will be responsible for documenting entity relationships, data dictionaries, system interfaces, and data flows. They will work with developers, business analysts and other stakeholders to document existing workflows and recommend optimizations to the platform and workflows based … on user needs. YOE/Degree Requirements: 7 years with a Bachelor's in Computer Science, Systems Engineering (or related field) or 12 years without the degree. Required Skills: Database design/operations/maintenance, reverse engineering, data normalization and cleansing, scripting, data analysis and visualization, data security. Desired Skills: Oracle, knowledge of existing BM&A systems Telework More ❯

DevOps Systems Administrator - 23-39153c Country Intelligence Group is seeking a Full-Time DevOps Systems Administrator to support our client in the Reston, Virginia area. The selected candidate will assist with the maintenance of existing legacy systems and support the transition to a cloud-native architecture. This role requires expertise in CI/CD … scrub prior to onboarding. Tasks Performed: • Automate build, test, and deployment processes using CI/CD tools. • Deploy and monitor applications using Docker and Kubernetes. • Maintain legacy systems and assist in migrating to cloud-native architecture. • Perform system updates, scripting, and performance tuning on Linux servers. • Provision and manage infrastructure using infrastructure-as-code tools in cloudagnostic More ❯

design patterns API Development Building and maintaining RESTful APIs Solid understanding of HTTP protocols, status codes, headers, etc. API documentation using tools like Swagger/OpenAPI Legacy Systems Exposure to or experience with WCF services - we still support some older systems, so comfort working with a mix of modern and legacy tech is key … smart, supportive people who value clean code and collaboration You'll have space to grow, technically, professionally, and personally Experience Core C# & .NET Skills API Development Legacy Systems Security Integration & Communication Database Integration Keywords c# .Net API Location United Kingdom Apply today! We are valconeers Close Software Developer Job Primary Location: United Kingdom First Name Last Name More ❯

something special to the table, including you! So, even if you feel that you're close but not an exact match, we encourage you to apply. Overview The Business Systems Migration Analyst is tasked with managing and executing data migration workstreams within the Acturis insurance software platform. This role is crucial in ensuring the accurate and efficient transfer of … data from legacy systems to Acturis, while maintaining data integrity throughout the process. In this role you will support the overall implementation process, playing a key role in the successful transition to the Acturis platform. If you have a keen eye for detail and are skilled in data migration, we encourage you to apply. How you'll … and risk assessments. Compare legacy and target functionality with an open mind, adopting a best practice approach. Data Extraction and Transformation : Extract data from legacy systems using appropriate tools and techniques. Transform and cleanse data to ensure compatibility with Acturis platform requirements. Data Loading and Validation : Load transformed data into Acturis, ensuring accuracy and completeness. More ❯

design, build and support of various SAP modules and their integration with other SAP modules and legacy Bloomberg systems. We are constantly integrating our product into multiple systems and workflows. We are accountable for staying abreast of new SAP technologies and how to best leverage them to improve our systems and processes, providing value to our … technical experience: identifying root cause application issues and proposing solutions Be curious about new SAP functionality and innovation and understand sophisticated system landscapes deeply coordinated with legacy systems Be a self-directed, hard-working team member who's comfortable working independently as well as a part of our highly collaborative team You'll need to have: 10+ … Innovation Management), including Convergent Charging (CC), Convergent Invoicing (CI), and Subscription Order Management (SOM) Experience with other leading subscription and usage-based billing platforms, such as Zuora, BillingPlatform, Aria Systems, or Gotransverse Experience with leading CPQ platforms A self-starter who's capable of leading requirements-gathering sessions and handling issue resolutions Strong problem-solving and troubleshooting skills with 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. This is a hands-on role with involvement across the full software development lifecycle. You'll work in a hybrid environment with a tech … skills with a focus on scalability and security Experience working in agile teams and collaborating with product/design stakeholders Nice to Have Experience with modernising legacy systems Microsoft Azure Developer Certification Familiarity with Durable Functions , Logic Apps, or messaging systems like Event Grid Perks & Benefits 25 days holiday + birthday off Hybrid working Professional development More ❯

Linchpin Software, an innovative small business, is seeking a cloud-savvy DevOps engineer to support mission-critical systems used by thousands of users daily. If you're passionate about delivering scalable cloud solutions and want to make a real impact in a production environment, we want to hear from you. In this role, you'll do more than just … keep the lights on - you'll shape the future of cloud operations for systems supporting over 10,000 users. From cloud architecture to automation, you'll lead the charge in building secure, resilient, and efficient solutions. You'll work independently and collaboratively to migrate legacy systems, automate infrastructure, and enable development teams to thrive in AWS. … Role Focus: 1) Design, implement, and maintain secure and highly available cloud environments using AWS. 2) Lead efforts to modernize legacy systems through cloud-native rearchitecting and migration strategies. 3) Support large-scale production systems with an eye toward uptime, reliability, and performance. 4) Automate deployment pipelines and infrastructure with DevSecOps best practices. 5) Partner with More ❯

Hybrid), £475-525 per day Inside IR35 Contract role for an experienced Business Data Analyst required to support a large-scale transformation programme, focused on replacing legacy systems with Salesforce CRM and delivering strategic improvements to customer data. You'll bring proven experience in data analysis, data mapping, and data migration projects within CRM or enterprise system … strong advantage. This role is for a proactive and detail-oriented Data Analyst to support a major CRM and customer data transformation, including the migration from legacy systems to Salesforce. This role will focus on analysing customer data, documenting legacy structures, identifying data quality issues, and supporting data mapping, cleansing, validation, and reconciliation activities. Working … driving insight, enabling CRM optimisation, and ensuring the integrity and successful delivery of customer data throughout the migration process. Experience Required: Proven experience supporting data migration projects, including legacy data analysis and transformation. Familiarity with data governance frameworks, including stewardship, ownership, and quality monitoring. Proficiency in SQL, Excel, python and data visualisation tools (e.g., Power BI, Tableau). More ❯

Apply online only) per day Inside IR35 Contract role for an experienced Business Data Analyst required to support a large-scale transformation programme, focused on replacing legacy systems with Salesforce CRM and delivering strategic improvements to customer data. You'll bring proven experience in data analysis, data mapping, and data migration projects within CRM or enterprise system … strong advantage. This role is for a proactive and detail-oriented Data Analyst to support a major CRM and customer data transformation, including the migration from legacy systems to Salesforce. This role will focus on analysing customer data, documenting legacy structures, identifying data quality issues, and supporting data mapping, cleansing, validation, and reconciliation activities. Working … driving insight, enabling CRM optimisation, and ensuring the integrity and successful delivery of customer data throughout the migration process. Experience Required: Proven experience supporting data migration projects, including legacy data analysis and transformation. Familiarity with data governance frameworks, including stewardship, ownership, and quality monitoring. Proficiency in SQL, Excel, python and data visualisation tools (e.g., Power BI, Tableau). More ❯

ongoing evolution of key platforms in collaboration with cross-functional teams. For this, they are looking for a technically confident developer who's comfortable working across a range of systems, technologies, and business needs. Key Responsibilities: Participate in the design, enhancement, and migration of legacy systems built in C#, VB, and Angular, using MySQL, PostgreSQL, and … maintainability, and ongoing evolution. Contribute to the implementation of modern architectures: microservices, containerised services, and serverless cloud-native components in AWS. Diagnose and resolve complex support issues in legacy applications. Contribute to Agile processes using KANBAN, ensuring transparency and delivery alignment. Document architecture decisions, deployment processes, and codebase changes clearly and thoroughly. Skills & Experience: Expertise in backend development … Javascript, HTML, CSS Strong database skills with SQL Server, MySQL, and PostgreSQL Familiarity working within a cloud environment, particularly AWS or Azure Experience maintaining and modernising legacy systems Experience working in a client-facing or business-facing technical role This is a full-time, permanent role, offering a starting salary up to £65,000 (Depending on experience More ❯

Our client an industry leading private sector business located in East Sussex is looking for a full stack .Net developer. Key Roles Participate in migration of legacy systems built in C#, VB.NET, Angular/TypeScript, using MySQL, PostgreSQL, and SQL Server technologies. Maintaining applications, ensuring reliability, maintainability, and evolution. Act as a liaison between the development team … Angular, TypeScript, JavaScript, HTML, CSS. SQL Server, MySQL, and PostgreSQL. AWS or Azure. Experience in a client-facing or business-facing technical role. Maintaining and modernising legacy systems, including VB.NET. Communication skills to engage confidently with non-technical stakeholders. Knowledge of Docker, CI/CD pipelines, GitHub, and Azure DevOps Reasonable Adjustments: Respect and equality are core More ❯

web development, ideally with experience in .NET Core, C#, and modern front-end frameworks. As the lead developer you will play a key role in reducing legacy systems, building shared libraries, and guiding the forming small internal development team in adopting best practices and modern frameworks. The Lead Developer salary & benefits: * Salary: c … the office Some of the main duties of the Lead Developer C# .NET will include: * Architect and oversee development of internal applications and services. * Lead the migration of legacy desktop and web applications to .NET Core, ensuring modularity, testability, and cross-platform compatibility. * Define and enforce coding standards, version control practices (Git), and CI/CD pipelines. Ensure … frameworks. * Proven ability to lead a small development team and enforce coding standards. * Experience with shared libraries, modular architecture, and multi-platform delivery. * Comfortable working with legacy systems and transitioning them to modern platforms. * Familiarity with CI/CD pipelines, Git, Azure DevOps, and containerisation (Docker/Kubernetes). * Strong communicator who can collaborate with internal stakeholders More ❯

Position requires US Citizenship and a Secret security clearance! We're seeking an experienced Modernization Software Engineer that focuses on integrating cutting-edge technology with legacy systems to enhance operational capabilities. The ideal candidate has experience with large legacy systems, a passion for modernization, and thrives in small, disconnected team environments. Adaptability to new … end-to-end testing, profiling, benchmarking, and stress testing. • Expertise in version control (monorepos), documentation, CI/CD pipelines, code reviews, package and artifact management (Cargo, PyPI, NPM), build systems, containerization (Docker), and cloud platforms (AWS preferred, Azure/GCP a plus). Preferred Skills • Large Language Models (LLMs): Experience with LLM inference servers, major frameworks (LangChain, LlamaIndex), RAG … techniques, vector databases, prompt engineering, token optimization, and model quantization. • System-Level Knowledge: Strong understanding of Linux, process/memory management, file systems, networking, compiler optimizations, libraries, system calls, and CPU cache optimization. Required Qualifications: • US Citizenship • Secret Clearance (ability to eventually obtain a Top Secret) • B.S. in computer Science or related degree preferred • 4+ years of experience in More ❯

actionable insight? We're looking for a Salesforce Data Analyst to support a major Enterprise Data transformation programme, playing a key role in the migration from legacy systems to the new Salesforce platform. As a Salesforce Data Analyst, you will support the successful delivery of our customer and CRM data strategy as part of a multi-year … transformation. In the early phase of the project, you'll be responsible for documenting current ('as-is') data structures, analysing legacy CRM systems, and identifying data quality issues and migration requirements. You will work across multiple teams to ensure data integrity, support effective data governance, and drive data quality during and after migration. This role is essential … processes Skills & Experience Strong background as a Data Analyst, with a focus on customer and CRM data Proven experience in data migration projects, particularly involving legacy CRM systems and Salesforce Hands-on experience with SQL, Excel, Python, and visualisation tools (Power BI or Tableau) Familiarity with Salesforce data models (Leads, Opportunities, Contacts, Accounts) Experience with Snowflake is More ❯

business that is in the middle of an exciting technology transformation. They are seeking a Senior .NET Developer to take a leading role in modernising their legacy systems and driving AI adoption across the company. This is a fantastic opportunity for someone passionate about technology evolution, AI tooling, and delivering clean, modern code. You’ll help replace … to a React front end (already 50% there!) Mentoring and supporting other developers while ensuring best practices Collaborating with IT and product teams to redesign and modernise core business systems Participating in architecture discussions, code reviews, and deployment strategy Writing maintainable, well-documented code and implementing scalable solutions What We’re Looking For: 5+ years of .NET development experience … with proven modernisation/migration projects Experience moving from legacy systems (VB.NET) to modern stacks Strong knowledge of C#, .NET Core, SQL Server, REST APIs, and cloud environments Hands-on experience using AI developer tools like GitHub Copilot or ChatGPT Passion for clean code, architecture, and technical leadership Strong communication skills and a collaborative mindset Why Join More ❯

now 7 years in a row! As a Lead Software Engineer , you will help build, support, and improve the software used across the organisation. This includes: In-house developed systems Integrations with third-party and internal systems Legacy systems Development tools and infrastructure You will lead by example, guide engineers, and support the team manager More ❯

Cutover Project Manager - SAP ERP Transformation Cutover Manager, Project Manager, SAP ERP Transformation, Data migration, Integration, Cutover workstream, Success Factors, S/4 HANA, ERP implementations, Legacy systems, SAP Activate methodology, Public Sector, Change management, Business readiness, ERP go-live. Manchester – Hybrid (could consider remote for the right candidate) 6 months initial contract £400-£450 per day … go/no-go criteria, and contingency planning. Collaborate with the data migration team to track data quality, reconciliation, validation, and transformation activities. Ensure readiness of legacy systems, interfaces, SAP environments, and interfaces for the cutover. Manage mock cutovers, dry runs, and dress rehearsals to identify gaps and mitigate risks. Facilitate and chair cutover-related governance forums More ❯