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Tuum is a next-generation banking platform enabling fintech and banks to rapidly offer seamless financial services to their customers. The core banking platform is API-based, consisting of flexible and independent modules covering all retail and business banking capabilities for quick and easy integration. Founded in 2019 and headquartered in Tallinn, Tuum is backed by investors including Citibank, BlackFin Capital Partners, Karma Ventures, Portage Ventures, SpeedInvest, and CommerzVentures.
You will work as part of the Implementation team to successfully implement Tuum's solution for banking and fintech clients. Your responsibilities include:
- Gather and assess customer business requirements and map them against Tuum's platform functionality
- Manage customer onboarding to Tuum's platform by demonstrating features and providing trainings and workshops
- Setup and configure Tuum's platform parameters based on customer needs
- Perform validation and functional testing in customer environments to ensure payment flows run smoothly
- Provide operational customer support and consultancy post go-live
- Manage client product demands by translating customer requirements to user stories and submitting change requests to product development teams
- Take part in the constant improvement of the customer journey
- Create and manage documentation and training materials
- Stay up-to-date with Tuum platform releases, payment scheme developments, and industry best practices
You will work on large, complex implementation projects with banking and fintech clients, requiring strong technical and business acumen.
REQUIREMENTS:
- 1–3 years of experience in a junior technical, business analysis, or operational support role within fintech, banking, or IT consulting
- Basic understanding of payment processing concepts, messaging formats (e.g., SEPA, SWIFT, ISO standards), or transaction lifecycles
- Comfort reading API documentation (RESTful APIs, JSON) and using tools like Postman to inspect payloads and run basic troubleshooting queries
- Foundational understanding of databases and data management (SQL) to look up logs, run simple queries, and investigate issue root causes
- Great time management skills, with the ability to prioritize tasks, follow structured workflows, and meet project deadlines
- High attention to detail when testing software, reviewing technical configurations, or analyzing transactional data
- Strong willingness and drive to learn the Tuum core platform in depth and build expertise in core banking technologies
- Strong problem-solving skills with a collaborative, customer-oriented mindset
- Fluency in English (written and spoken); additional European languages are a plus
