Montash

Role: Mainframe Developer Contract Length: 6 months extensions available, project runs until 2027 Work Location: Hybrid Remote / Lancashire Start Date: ASAP Industry: Financial Services / Insurance IR35 Status: Outside IR35 Seeking a skilled Systems Analyst/Developer to join a major two-year migration and separation programme. The project focuses on migrating a portfolio from legacy mainframe systems to a new outsourced platform model. This is a hands-on role suited to someone with deep IBM mainframe expertise who can hit the ground running. Responsibilities: Analyse and interrogate legacy mainframe applications to support source-to-target data mapping Play a critical role in build phase, developing code and executing data extracts based on client specifications Develop code in IBM z-series mainframe technologies to extract data Work from agreed specs to support the data migration and build activity Support testing and validation phases in a waterfall-esque delivery model Collaborate with Solution Architects and Programme Leads to influence and adapt build scope as needed Active participation in daily stand-up calls with client Skills & Experience Required: Proven, recent development experience using these IBM mainframe technologies: PL1 & SYNCSORT DB2 & IMS DB MVS JCL, TSO JobTrac, ENDEVOR, File Manager Experienced interrogating mainframe applications to support data mapping & extraction Strong background in codebase development and legacy system interrogation History of successful, large-scale migration programmes Financial Services industry experience Desirable Experience: Knowledge of life/protection products

Role: Principal Engineer Start Date: August 2025 Contract Length: 12 Months Work Location: Remote IR35 Status: Inside IR35 Security Clearance: SC & NPPV3 Cleared Join a major government programme where you ll lead multiple engineering teams, develop critical digital services, and support 24/7 live systems. This is a leadership role within a SAS team, focused on building high-quality applications and infrastructure using modern engineering practices. Responsibilities: Lead and mentor teams of engineers across complex digital service projects Engage with senior business and technical stakeholders Provide technical assurance on design, risk mitigation, and standards compliance Shape and refine engineering backlogs and develop user stories Foster a culture of collaboration, innovation, and continuous improvement Contribute to and maintain critical service applications in production Support development of microservices with focus on security, scalability and reliability Ensure best practice in code quality (TDD, SOLID principles, peer reviews) Support API architecture, observability, and service monitoring Participate in a 24/7 on-call rota (Level 3 support) Required Experience: Proven experience leading engineering teams on complex digital projects Excellent knowledge of at least one 4GL, object-oriented analysis and design Experienced in backlog refinement & preparing user stories Familiarity with DDaT frameworks, GDS standards & SOLID / best practices SC Cleared & Eligible for NPPV3 clearance Desirable Skills: JavaScript / Vue.js & PHP/Drupal & WordPress (database tuning, CDN, caching) Knowledge of AWS DevOps principles & Docker, Terraform, Kubernetes, Helm, Git C#, Java (Springboot, JPA/Hibernate), REST APIs, observability & monitoring, queue technologies & security History working on building new, evolving, high availability microservices with data integrity Strong understanding of test methodologies: JUnit, TDD, Integration Tests & E2E Experience working with relational databases: PostgreSQL