Java & Mainframe Developer - Financial Services - Brest

Company Description Sopra Steria, a major player in Tech in Europe, with 51,000 employees in nearly 30 countries, is recognized for its consulting, services, and digital solutions activities. It helps its clients lead their digital transformation and achieve concrete and lasting benefits. The Group provides a comprehensive response to the competitiveness challenges of large companies and organizations, combining in-depth knowledge of business sectors and technologies with a collaborative approach. Sopra Steria places people at the heart of its action and is committed to its clients to make the most of digital technology to build a positive future. In 2025, the Group achieved a revenue of 5.6 billion euros. Job Description Your work environment: The Financial Services vertical: a lever for innovation at the heart of banking challenges At Sopra Steria, our Financial Services vertical supports major French and European banks in their digital challenges: system modernization, innovation, security, performance. We are involved in key business areas such as insurance, credit, payment methods, regulatory compliance, and risk management and anti-money laundering. A local agency, a national impact Established for several years in Brest and in the West, we are at the heart of strategic projects for local banking players. Our expertise? Cloud, Data, AI, APIs, process automation, distributed architecture. Our missions? Design and develop innovative solutions that evolve the banking and insurance sector. Our agency, human-sized and growing, is looking for motivated and passionate talents to join us. In this context, we are looking for an experienced Mainframe & Java Analyst/Developer, capable of working on COBOL environments while participating in the transformation towards modern architectures (Java, AI, cloud). You will join a structured team, with an identified referent to facilitate your integration and skill development. Your role and your missions Within a project team of 5 to 20 people, you will be involved in all phases of the software lifecycle: Design and development of User Stories (backend & frontend) Effort estimation, testing, and documentation Participation in the CI/CD pipeline and industrialization of deliverables Contribution to technical capitalization and technological watch Presentation of technical topics internally and to the client (Tech’Me UP, communities) The technical environment: Languages: Java, COBOL, JCL, SQL Environment & Tools: IBM z/OS Mainframe, TELON, Endevor, DB2, CICS Data & Integration: Oracle ODI, Data Catalyst, Talend AI: Azure OpenAI, Google Cloud Architecture: Microservices DevOps: GitLab, CI/CD, Docker, S3, Openstack Qualifications Your profile: With a Master 2 degree, an Engineering school degree, or equivalent training, you have at least 4 years of experience in COBOL and Java development. Ideally, you master development best practices (SOLID, Clean Code) and you have already worked on CI/CD projects, with attention to quality and security. You are passionate about tech, curious, rigorous, and enjoy sharing your knowledge? Then this position is for you! Additional Information Benefits of joining us: A teleworking agreement to work remotely up to 2 days per week depending on your assignments. A competitive benefits package: health insurance, employee representative committee, meal vouchers, profit-sharing agreement, vacation and referral bonuses. Multiple career opportunities: over 30 job families, many pathways to imagine together. Several hundred training courses accessible independently with Sopra Steria Academy. The possibility to get involved with an association through our civic engagement platform. The opportunity to join the Tech'Me UP collective (training, conferences, watch, and much more…) An inclusive and committed employer, our company works every day to combat all forms of discrimination and promote a respectful work environment. That is why, committed to gender diversity and inclusion, we encourage all applications and all profiles. https://www.soprasteria.fr/nous-connaitre/nos-engagements