Frontend Engineer (APM)

About the Position

Frontend Engineer (APM)

Engineering & Data

Location: Warsaw

Work Type: Hybrid

About the Position

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're looking for a Frontend Engineer to join our Alternative Payment Methods team - the team that owns everything related to PayPal, Klarna, MB WAY, Blik, and every other APM merchants want to offer their customers.

Right now, this team has no dedicated frontend engineer. UI work for Olimp (internal admin panel), Hub (for merchants), and Payment Form/Payment Page gets done around the edges of other teams' roadmaps. You'll change that - as the first FE hire on this team.

Responsibilities

• Give the APMs team the ability to ship UI independently across Olimp, Hub, and payer-facing flows
• Build and maintain the SPA that powers the APMs experience in Hub and Olimp
• Add new Alternative Payment Methods to Payment Form, from integration through to a polished payer-facing checkout experience
• Improve the UI/UX merchants use in Hub to configure and manage their APM setup
• Work directly with Go backend engineers to shape the Buf/Connect RPC contracts your frontend consumes
• Establish the frontend patterns, tooling, and review practices this team will run on for years to come

Requirements

Technical Mastery

• 1+ years of professional experience building applications with React and TypeScript
• Comfortable working with SPA architecture and building UI from scratch, not just extending existing screens
• Able to read and reason about API contracts (REST, RPC, or similar) and collaborate directly with backend engineers on how those contracts are shaped

Mindset & Impact

• Genuine interest in owning frontend decisions rather than following an existing playbook
• Ownership & independence - you drive projects forward without waiting for someone else to define the pattern
• Ability to learn quickly and work well directly with backend and product stakeholders

Nice to Have

• Experience with Protobuf/Buf or gRPC-style typed API contracts
• Familiarity with BFF patterns, especially Node.js-based RPC layers like tRPC
• Exposure to payments, fintech, or checkout/conversion-sensitive UI
• Experience setting up frontend architecture or conventions on a team that didn't have them before

We Offer

• High-impact role. Proactively dive deeper into the platform and own frontend part inside the team.
• Massive growth opportunity. Be the frontend engineer who defines how an entire team ships UI going forward.
• Great product. Solidgate isn't just an orchestration player - it's the financial infrastructure for modern internet businesses, covering subscriptions, chargeback management, fraud prevention, and indirect tax. We hold financial licenses in key regions and are a direct Visa & Mastercard partner and sub-reseller (top 5 globally).
• Part of Endeavor's global network, alongside some of the most ambitious companies in the world.
• 💌 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.

About the Company

Come build the thing that doesn't exist yet.

🫂 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.

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