Software Engineer – Cards Team

About the role

Join Tuum’s Cards Team and help build a next‑generation, cloud‑native core banking platform. You will design, develop and scale the systems that power card issuing, payment processing and real‑time ledger balances for customers worldwide.

Key responsibilities

• Own the full product lifecycle for the Cards module – design, implement, test and deploy robust features.
• Ensure reliability and high performance of production systems handling high‑volume transactions.
• Write clean, maintainable Java code and collaborate closely with fellow engineers.
• Build, monitor and continuously improve data‑processing pipelines at scale.
• Provide technical recommendations that anticipate future product needs.
• Act as a subject‑matter expert for team members and business stakeholders.

Required profile

• 3+ years of professional experience building scalable backend applications.
• Strong background in agile software development and a proactive, solutions‑focused mindset.
• Curiosity about product vision, business logic and a willingness to share knowledge.

Required skills

• Java (Spring framework)
• PostgreSQL
• Microservices architecture
• JavaScript (React)
• AWS or other cloud‑based solutions (bonus)

What we offer

• Competitive salary and Tuum stock options.
• Hybrid working model (3 days onsite).
• 4‑day work week during June‑August.
• Private health insurance or generous wellness compensation.
• Opportunities for professional growth in a fast‑scaling fintech.