1 to 25 of 28 Refactoring Jobs in London

solutions leveraging latest tools and platforms , including: AWS Mainframe Modernization Service , AWS Transform , and IBM Watson Code Assistant for z for automated code analysis, refactoring, and migration. Agentic AI-driven modernization accelerators for intelligent code conversion, dependency mapping, and automated testing. Independent Software Vendor partner technologies for modernization Design architectures ...

increments to the team's model library - working both individually and collaboratively. Providing leadership in areas such as object modelling & interface design, automated testing & refactoring and performance optimisation. Provide support to Trading & Origination on model usage and behaviour. Leverage the teams cross-asset expertise to connect business locations, helping ...

Record Keeping. Translate complex technical concepts for both technical and non-technical stakeholders. Support agile planning, estimation and prioritisation. Identify opportunities for system optimisation, refactoring, and alignment to target architectures. Manage technical risks, issues and dependencies. Benchmark against peer organisations to ensure alignment with regulatory and industry expectations. Experience & Competencies ...

systems and processes across a given project(s) or technical domain Analyse, profile and plan work, aligned with project priorities Perform reviews of code, refactoring where necessary Deploy code in a structured, trackable and safe manner Document your data developments and operational procedures Ensure adherence to data/software delivery ...

data architecture, with at least 3 years in a leadership position Expert-level Databricks, Azure and SQL/Python Proven track record of refactoring legacy estates onto modern platforms without breaking things GCP and BigQuery experience is a strong advantage High EQ, comfortable presenting to leadership and managing non-technical ...

based to support the required high-touch stakeholder engagement and "onshore" collaboration model. Why This Role Is Unique: Legacy Transformation: Lead the refactoring of a complex, legacy environment into a modern, streamlined, and future-ready data asset. Technology Leadership: You will be the guardian and architect of the data structures ...

database modernization programmes for BFSI clients Design solutions across mainframe, midrange, and distributed systems Leverage AI and cloud tools for automated code analysis, refactoring, and modernization Collaborate with senior stakeholders, technology, and cross-functional teams Architect scalable, resilient solutions using microservices, APIs, and event-driven patterns Candidate Requirements: Deep hands ...

Server DBA or similar role. Strong SQL Server installation, configuration, maintenance, and security understanding. Solid T-SQL skills for writing and refactoring queries. Experience with performance tuning techniques. Exposure to Azure SQL administration and monitoring. Experience supporting development teams with SQL-related needs. Experience with SQL-to-Azure migration projects. ...

Server DBA or similar role. Strong SQL Server installation, configuration, maintenance, and security understanding. Solid T-SQL skills for writing and refactoring queries. Experience with performance tuning techniques. Exposure to Azure SQL administration and monitoring. Experience supporting development teams with SQL-related needs. Experience with SQL-to-Azure migration projects. ...

sector. Active SC Clearance. Experience maintaining and troubleshooting legacy applications/infrastructure, including Oracle, WebLogic, and Elasticsearch. Building and supporting CI/CD pipelines, refactoring code, and developing automated tests. Strong knowledge of Nginx, Apache Tomcat/HTTP, and ETL processes. Installing and supporting Oracle 11, including Partitioning, RAC, RMAN ...

Responsibilities: Architect and implement highly available, multi-region infrastructure services Define resilience patterns across services (failover, circuit breaking, back-pressure, etc.) Lead large-scale refactoring or reliability improvement initiatives Establish best practices in incident response, observability, and SLO management Drive adoption of modern cloud-native and GitOps practices Mentor senior ...

Responsibilities: Architect and implement highly available, multi-region infrastructure services Define resilience patterns across services (failover, circuit breaking, back-pressure, etc.) Lead large-scale refactoring or reliability improvement initiatives Establish best practices in incident response, observability, and SLO management Drive adoption of modern cloud-native and GitOps practices Mentor senior ...

Proven experience working on live production systems ✔️ Full-stack JavaScript/TypeScript (Next.js, Node, APIs, databases) ✔️ Python experience (scripting, services, tooling, data processing) ✔️ Strong refactoring and system-improvement skills ✔️ Comfortable in fast-moving, imperfect environments ✔️ Able to work autonomously with strong judgement on priorities & risk Highly Desirable ⭐ C#/.NET ...

data rich environments and have previous experience within Fintech, Payments, eCommerce or similar with high throughput systems You're happy to do some brownfield, refactoring and maintenance work alongside new projects You're collaborative with great communication skills What's in it for you: Salary to £90k Remote working Impactful ...

leading role in that journey. This isnt a role where you inherit a polished environment. Its an opportunity to shape, modernise, and influence from refactoring legacy pipelines to building best-in-class data products using tools like Databricks, Azure, and GCP. Youll operate as the technical authority within the data ...

Have Experience working in regulated environments (financial services or government). Additional Salesforce certifications beyond core requirements. Experience supporting data model remediation or complex refactoring initiatives. 5. Qualifications Salesforce Certifications (Essential): Salesforce Administrator Platform App Builder Platform Developer I Platform Developer II Trailhead (to be maintained during assignment): Advanced Apex ...

business operations. Key Responsibilities Support the migration and upgrade of the existing ERP system using LANSA technologies Analyse existing applications and assist with refactoring or redeveloping components where required Develop, test, and implement enhancements within the ERP environment Work with technical teams to troubleshoot issues during the migration process Ensure ...

Negotiables: Strong software engineering experience (C# preferred but Java, or C++ considered) Strong SQL/relational database experience Careful approach to testing and safe refactoring Clear, concise technical and verbal communication Have previously worked for a Financial Service organisation or for a software vendor that’s utilised within the Financial … senior leadership for every change Nice to Haves Exposure to futures, options, or crypto markets Experience improving legacy or difficult-to-test systems Experience refactoring large codebases Exposure to Python or DevOps tooling Experience in smaller, high-ownership engineering teams Why Join You will join a small, engineering-led systematic ...

elegant data solutions. Focus on usability, documentation, and data clarity. Comfortable working independently in a dynamic, fast-changing environment. DESIRABLE SKILLS Experience rebuilding or refactoring a Looker instance from scratch. Familiarity with BigQuery performance tuning and cost optimization. Experience scaling analytics across a cross-functional organisation HOW TO APPLY Please ...

elegant data solutions. Focus on usability, documentation, and data clarity. Comfortable working independently in a dynamic, fast-changing environment. DESIRABLE SKILLS Experience rebuilding or refactoring a Looker instance from scratch. Familiarity with Snowflake performance tuning and cost optimization. Experience scaling analytics across a cross-functional organisation HOW TO APPLY Please ...

Responsibilities: Develop and maintain backend services using Java, Spring Boot, AWS Build and optimize REST and GraphQL APIs Ensure code quality through testing, refactoring, and best practices Own services end-to-end, including deployment, monitoring, and production support Handle production incidents, perform root cause analysis, and improve system reliability Contribute ...

data model design Strong architectural knowledge of: Salesforce platform architecture Service Cloud and Experience Cloud Security, identity, and access controls Data model remediation and refactoring Proven ability to produce clear, governance‐ready architecture documentation. Strong communication skills, able to explain complex technical concepts to senior and non‐technical stakeholders. Experience ...

security. Core Technical Stack * AWS Master: Deep expertise across EC2, Lambda, S3, IAM, and VPC. Terraform Expertise: Proven track record in designing and refactoring complex IaC environments (Git/GitLab integration). CI/CD Orchestration: Advanced experience with GitLab CI and Jenkins to automate end-to-end delivery pipelines. … proficiency in Python, Bash, and Ansible for automation and 'code review' leadership. Responsibilities Lead Technical Design: Shape the architectural direction of the AWS environment. Refactoring & Quality: Lead code reviews and promote refactoring techniques to enhance a multi-site enterprise codebase. Security & Compliance: Implement robust security measures aligned ...

Lead PySpark Engineer (Cloud Migration) Role Type: 5-Month Contract Location: Remote (UK-Based) Experience Level: Lead/Senior (5+ years PySpark) Role Overview We are seeking a Lead PySpark Engineer to drive a large ...

The Role: Join our client as a Lead PySpark Engineer to modernize legacy data workflows. You will lead the hands-on transition of complex SAS environments into scalable, AWS-native PySpark pipelines for a major ...