TypeScript & Scala Engineer Poland : Kielce, Kraków, Wrocław + Remote – PLN NET PER HOU

Virtus Lab is a leading European software consulting and engineering company. Our mission is to craft clean code and practical solutions with precision and purpose. We foster a dynamic culture rooted in strong engineering, a sense of ownership, and transparency, empowering professionals to make a substantial impact in the software industry.

This engagement is focused on architecting and delivering the developer experience and integration layer for high‑stakes Distributed Ledger Technology (DLT) financial products. The project requires a specialized engineering partner capable of executing deliverables across a hybrid environment that combines expert‑level Type Script depth with the ability to competently interface with a Scala codebase.

Type Script Advanced

Web APIs Advanced

Scala Regular

Tapir Regular

Project Dual Core

We are working on the project together with a partner from the Smart Contracts industry. We are contributing to key components of the platform in the area of Distributed Ledger Technology (DLT). The work is divided between several teams responsible for individual components and the performance of the solution. The product is used by large international companies in the financial industry.

This engagement is focused on Software Developer Kit libraries and API definitions around a wallet application that is built on top of a distributed ledger.

• SDK Evolution & Standardization: Extending and polishing the existing Wallet SDK libraries in close collaboration with product teams, while driving the design of new, multi‑language client library standards with a reference implementation in Type Script.
• Ledger API & Code‑Gen Optimization: Refining and smoothing the Ledger API’s OpenAPI definitions using Tapir (Scala) and maintaining Scala‑based code‑generation tools. This autonomous role requires deep expertise in API design to deliver clean, production‑ready interfaces.

Type Script, Scala, Tapir, OpenAPI. The initiative is driven by a Switzerland‑based distributed team, interfacing directly with a Product Manager responsible for the project’s business vision.

• Strong fluency in Type Script and its advanced design patterns.
• Proven experience in developing reusable libraries and SDKs.
• Deep understanding of APIs (from both client and server‑side perspectives).
• Ability to competently contribute to the Scala codebase (specifically for tools and API generation).
• Good command of English (B2/C1).

• Building tech community
• Home office reimbursement
• Training Package
• Virtusity / in‑house training
• Access to the above perks is optional and completely voluntary for B2B contractors