Summary
✨ AI‑Generated
We are building a world-class financial infrastructure that empowers digital entrepreneurs to scale their online businesses. As a Senior Backend Engineer, you will join the Billing team and take full ownership of the Taxes module — a critical component responsible for tax calculation and reporting across multiple jurisdictions. You will design, develop, and maintain scalable backend services that handle complex tax logic and ensure accurate financial reporting. The ideal candidate has extensive experience in backend engineering, strong knowledge of distributed systems, and a passion for solving complex financial and regulatory challenges. You will work closely with cross-functional teams including product, finance, and operations to deliver reliable, high-performance solutions that power the financial backbone of the platform.
Highlights
Work on a core tax module within a billing system, own a critical component, be part of a payments orchestration platform with a global mission, and join a high-performing engineering team with strong ownership culture.
Description
Our Mission and Vision
At Solidgate, our mission is clear: to empower outstanding entrepreneurs to build exceptional internet companies.
We exist to fuel the builders — the ones shaping the digital economy — with the financial infrastructure they deserve.
To achieve that, we’re on a bold path: to become the #1 payments orchestration platform in the world.
We believe the future of payments is shaped by people who think big, take ownership, and bring curiosity and drive to everything they do.
That’s exactly the kind of teammates we want on board.
Solidgate is part of Endeavor — a global community of the world’s most impactful entrepreneurs.
We’re proud to be the first payment orchestrator from Europe to join — and to share our expertise within a network of outstanding global companies.
About The Team And Role
You’ll join the Billing team and take ownership of the Taxes module — a core part of our billing system responsible for tax calculation and reporting across multiple locations.
The product has already moved beyond MVP and is actively used by customers.
The foundational logic is in place, demand is high, and the next step is scaling functionality and reliability.
This role is exciting because you’re not maintaining legacy code — you’re building and shaping a critical system almost from scratch.
You will have a clear path to Lead: full ownership of the Taxes direction, architectural decisions, and growing a team around it.
Your team — Product Owner, 1 Senior Engineer, 1 Junior Engineer, Automation QA, and Tax Manager.
Explore our technology stack ➡️ here.
What you’ll own
Your focus will be on:
building tax calculation and reporting logicintegrating third-party tax providersimproving system resilience and uptimemaking architectural decisions and setting technical directionmentoring engineers as the team grows
In the first months, you’ll deliver key tax functionality and lay a solid foundation for future product and team growth.
We rely on automated testing over manual QA — unit, integration, functional, and e2e tests are a core part of how we ship and scale safely.
You’re a great fit if you have
6+ years of backend engineering experience (Go/PHP/Kotlin/Java/Python)Strong understanding of high-load system designSolid experience with PostgreSQLExperience with queues or streamsStrong testing culture: unit, integration, functional, e2eProactive, independent, result-oriented mindset
Nice to have
KafkaAWS servicesCI/CD pipelinesFintech / payments / financial domain experienceUnderstanding of VAT, GST, Sales TaxExperience managing teams
Why Solidgate?
High-impact role.
You’re not inheriting a perfect system — you’re building one.
Great product.
We’ve built a fintech powerhouse that scales fast.
Solidgate isn’t just an orchestration player — it’s the financial infrastructure for modern Internet businesses.
From subscriptions to chargeback management, fraud prevention, and indirect tax — we’ve got it covered.
We hold financial licenses in key regions and are a direct Visa & Mastercard partner and sub-reseller (top 5 globally).
Massive growth opportunity.
Solidgate is scaling rapidly — this role will be a career-defining move.
Top-tier tech team.
Work alongside our driving force — a proven, results-driven engineering team that delivers.
Modern engineering culture.
TBDs, code reviews, solid testing practices, metrics, alerts, and fully automated CI/CD.
💌 The Extras: 30+ days off, unlimited sick leave, free office meals, health coverage, and Apple gear to keep you productive.
Courses, conferences, sports and wellness benefits — all designed for ideas, focus, and fun.
Tomorrow’s fintech needs your mindset.
Come build it with us.
🫂 Know top talent? We’re always on the lookout.
Refer someone for our role, and if they get hired, there’s a bonus waiting for you — simple as that.
