Senior C++ Developer (m/w/d)

As a Senior C++ Developer, you will play a key role in building and evolving software solutions used in a global, high-impact financial and payment systems environment. You will take ownership of your work and contribute to projects from concept to successful deployment. A strong focus of the role lies in leveraging modern technologies, especially AI-driven approaches, to continuously improve development processes and outcomes. Working in an international setup, you will collaborate closely with cross-functional teams and contribute to future-oriented engineering practices.

Your tasks:

• AI-First Development Mindset: You have hands‑on experience with AI coding assistants and use them as a part of a regular development workflow.
• AI-Supported Coding & Quality: You use AI to write, refactor, debug, and document code, and review all generated output for correctness, security, and maintainability before committing.
• Prompting & Context Management: You write clear, well‑scoped prompts and provide the right context (existing code, constraints, requirements) to get useful results regardless of language or layer.
• Critical Evaluation: You critically evaluate AI suggestions rather than accepting them blindly: spots, hallucinated APIs, insecure patterns, licensing issues, and subtly wrong logic.
• Efficiency & Adaptability: You use AI to work faster across unfamiliar code, languages, or frameworks, and to understand legacy or third‑party code.
• Learning & Knowledge Sharing: You stay current as tools and workflows evolve and share effective practices with the team.

Your profile:

• Education & Experience: You have a technical degree or a comparable education and at least 5 years of experience in C++ development.
• AI Mindset: You have hands‑on experience with AI‑assisted development tools and use them daily as an integral part of your work, with a strong drive to integrate AI into your daily work.
• Tech‑Stack: You are experienced with databases (e.g. MySQL) and modern development tools such as Jira or CI/CD pipelines.
• Technical Depth: You are comfortable working with complex or legacy systems (e.g. reverse engineering).
• Language Skills: You can easily communicate in English in our intercultural environment in any situation; German is an advantage.

Our values — One Team, Innovation & Transformation, Ownership, Entrepreneurship, and Empowerment — reflect your mindset as well? Then you’re exactly right for us!

Benefits:

• Hybrid Working: At epay, you will have a long‑term, secure position in a globally operating company, with the option to partly work from home.
• Personal Development: We support your personal and professional growth through regular employee discussions and tailored development measures. In addition, we offer an e‑learning platform and regular in‑house training sessions.
• Benefits from Day One: You will have immediate access to our corporate benefits platform. We also subsidise your DeutschlandTicketJob as well as your EGYM WellPass membership.
• After the Probation Period: In addition to numerous employee discounts, you will gain access to the Employee Benefit Club, which provides a monthly shopping voucher worth €50. You can also lease a bicycle through the company with EuroRad.
• Work Environment: We place great value on mutual respect and treating each other as equals. Transparent, regular communication and an open corporate culture with strong team spirit are a given at epay.