ITDS Portugal
ITDS is a leader in outsourcing IT engineers and works with various web and mobile technologies for over 30 global clients. It has been recognized as one of the 1000 fastest-growing companies in Europe for three consecutive years, Great Place to Work, and the Forbes Diamond award in 2023. ITDS currently has more than 600 IT professionals working in Portugal, Poland, and the Netherlands.
About company Senior Mainframe Developer – French & English Bilingual
On-site
Lisbon
October 20, 2026
Unleash the power of mainframe innovation — drive digital transformation at the forefront of enterprise IT!
Lisbon-based opportunity with hybrid work model.
As a Senior Mainframe Developer, you will be working for our client, a leading player in the IT industry committed to delivering cutting-edge technological solutions. In this role, you will help shape the future of mainframe systems, ensuring seamless performance and integration in complex enterprise environments. Join a team where your expertise will fuel innovation and accelerate career growth.
Your main responsibilities:
- Lead the development and maintenance of high-performance mainframe applications to meet organizational needs.
- Collaborate with cross-functional teams to design and implement scalable solutions.
- Optimize existing systems for efficiency, reliability, and security.
- Conduct code reviews and mentor junior developers to uphold coding standards.
- Troubleshoot and resolve critical system issues promptly.
- Document technical specifications and system configurations thoroughly.
- Stay ahead of industry trends to recommend innovative improvements.
You're ideal for this role if you have:
- 8+ years of experience in mainframe application development or related fields.
- Strong proficiency in mainframe programming languages and tools.
- Excellent command of English at B2 level or above.
- Fluent in French (B2 level) with strong verbal and written communication skills.
- Demonstrated ability to work in a hybrid environment with flexible remote days.
It is a strong plus if you have:
- Certifications in mainframe technologies or relevant project management credentials.
- Experience working in agile or DevOps environments.
Language required for the role:
- English (Communicative level)
- French (B2 level or higher)
Eligibility to work on this role:
- Only candidates with an existing legal right to work in the European Union will be considered for this role.
Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.
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