Location: Europe (Remote)
Company: Voyagu
Product: Radar
The Mission
Voyagu is a travel-tech company evolving Radar, our core platform, into a multi-agency SaaS system. The Financial Core is the spine of this transformation. We are looking for a Staff Backend Engineer to become the long-term technical owner of the system responsible for revenue calculations, payments, ledger-style events, and deterministic profit.
The Context
Active Evolution, Not a Blank Page This stream is already in motion. We started the Financial Core evolution a couple of months ago and have already defined the core architectural direction, introduced a ledger foundation, and implemented initial domain event flows.
By the time you join, V1 will likely be in advanced implementation or early testing. Success in the first 3-6 months is not about inventing architecture from scratch, but about taking hands-on ownership of an actively evolving system, stabilizing V1, and identifying gaps to drive the direction toward V2.
What You Will Work On
- Technical Ownership: Independently drive the direction of the Financial Core, challenge assumptions, and work closely with finance and engineering leadership.
- System Integrity: Validate the correctness of lifecycle flows and reconciliation behavior.
- Financial Logic: Handle ledger-style economic events, revenue/profit recognition, cost normalization, and client/supplier balances.
- Architecture: Improve the trustworthiness of the financial model and ensure strict financial invariants in a distributed, event-driven environment.
Tech Stack
- Primary: Python (backend services), PostgreSQL (complex relational modeling).
- Cloud: AWS (Lambda, SQS, S3), AWS CDK (Infrastructure as Code).
- Focus: Data correctness and transactional consistency.
What We Are Looking For:
- 8+ years of backend engineering experience, with significant time spent owning financial or transactional domain logic.
- Domain Depth: You have built real financial systems (payment platforms, billing infrastructure, ERP, or subscription platforms).
- Experience with "Live" Evolution: You know how to evolve complex production systems responsibly without breaking existing flows.
- Architecture & Hands-on: This is a hands-on ownership role, not a purely theoretical exercise.
Mandatory Domain Requirements:
We expect you to have deep, practical experience with:
- Ledgers and Reconciliation: Building systems that ensure deterministic correctness.
- Financial Operations: Reasoning about liabilities, revenue/profit recognition, and money flows.
- Complexity: Ability to describe and manage high-level financial domain complexity (e.g., multi-currency, complex tax logic, or multi-party settlements).
Why This Role Matters
The Financial Core determines our revenue correctness, scalability, and ability to successfully transition into a SaaS model. You will have direct architectural ownership of the foundation that powers all business operations.
Skills Required
- 8+ years of backend engineering experience
- experience owning financial or transactional domain logic
- experience evolving financial systems in production
- strong relational database design skills
- ability to reason about money flows, balances, and reconciliation
What We Do
Voyagu is a San Francisco-based travel management platform that connects premium travelers with travel experts for better and easier planning, booking, and managing of their trips. We are passionate travel nerds who genuinely believe that technology and human professionalism can make travel better, and we are inspired to prove it to the world. The focus is on clients and giving the travel agents technology to deliver the best travel offering and the ability to elevate the overall travel experience. We are bringing the breakthrough change by developing the Voyagu platform for travel agents to create offers, sell, and do travel management and support. This solution will connect the happy triangle: the client, the travel agent, and the travel suppliers. Our office locations in the U.S., East and West Coast, Europe, and Eastern Europe give us an international presence and proximity to our partners and investors. Growing remote work footprint, we give employment opportunities for tech and travel-inspired professionals worldwide. We are a diverse team, and everyone has their personality, but there are naturally present values in all of us that make us a team united by our No BS! culture. We are honest, very ambitious, and hungry to get results, and we act with respect, accepting everyone for who they are and their belongings, even if they are different and don’t agree. In our team, we want to have diverse, open-minded, agile people who are passionate about travel and excited to grow our company together. All people who join us have evident cultural fit expressed in passion for travel, agility, focus on the result, straight talk, and no BS.
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