Senior Platform Engineer - Java & Python

Senior Platform Engineer Java & Python - Daily Rate Contract - Hybrid-Working Model (3 Days' On-site) The ideal candidate is a Senior Platform Engineer who combines strong stakeholder management, excellent communication, professional maturity throughout the interview process, deep application modernization experience, practical Java/Python development capability, strong AI engineering skills, solid DB2/SQL knowledge, Ansible, Jenkins or multi-CI/CD pipeline experience, enterprise platform awareness, and proven ability to contribute to development work across multiple platforms while driving remediation and modernization programs to closure. Prior lead experience in one or more platform upgrade programs is a strong plus. The candidate should bring strong experience in application modernization, AI-enabled engineering practices, hands-on development across multiple platforms, vulnerability remediation, technology currency, compliance closure, operational risk reduction, and issue resolution across critical applications and infrastructure. The role coordinates across real delivery groups, including software development, platform engineering, server/infrastructure support, database administration, middleware support, cyber security/control partners, governance and risk teams, external vendors, QA/testing, production support, and senior management, to convert remediation issues into accountable plans with owners, timelines, dependencies, evidence, and closure governance. Application Stack: Strong working knowledge of Java, Spring, Spring Boot, REST APIs, Python, Flask, FastAPI, Django, enterprise architecture, microservices, application modernization, cloud-ready design patterns, Java applet modernization, AI-assisted software engineering practices, and Web UI technology using React. Database and Platform: Practical knowledge of DB2, SQL Server, SQL tuning, Linux/Unix, Apache, Tomcat, Ansible, Jenkins, multiple CI/CD pipeline models, monitoring, logging, post-release validation, and platform upgrade execution. Live Role - Apply for immediate consideration If you are interested in this role please apply or contact in strictest confidence. Please note: We have a number of similar positions currently, and in the future, which we would like to discuss with you should you indicate your interest in this role. When we receive your application for this role, we will contact you to advise you of our process for other similar positions. Stelfox is fully compliant with GDPR regulations and you can read more in our privacy policy here: Your shared data will not be disclosed or transferred to a third party data controller or data processor located outside the EEA unless we have obtained your express consent. We look forward to working with you.