Senior Full-Stack Engineer, TypeScript, React, Node.js

WhyHireWrong?

. Build and ship full-stack features in TypeScript, with React on the frontend and Node.js on the backend .

Posted 10/23/2026full-timeCracow • PolandSenior💰 $100,000 - $120,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in full-stack development using TypeScript, React, and Node.js, with a strong focus on building customer-facing features and improving developer experience. Proficient in translating Figma designs into accessible UI while maintaining a simple and maintainable architecture.

Highest-signal resume keywords

TypeScript DevelopmentNode.js Production ExperienceReact Application DevelopmentFigma Design ImplementationCustomer-Facing Feature Delivery

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

TypeScriptNode.jsReactAutomated TestingAPI DevelopmentUI/UX DesignCode ReviewDocumentationSubscription ManagementPayments Integration

Soft Skills

Independent WorkCollaborationProblem-SolvingCommunication

Tools & Technologies

Next.jsVueNuxtFastifyExpressNestJSAI Coding ToolsCursorCopilotOpenAI

Industry Keywords

SaaSE-commercePublic APIsSDKsWebhooksDeveloper DocumentationStartup ExperienceBillingInvoicingProration

Tech Stack

Tools & technologies

JavaScriptMagentoNext.jsNode.jsNuxtReactTypeScriptVue.js

About the role

Key responsibilities & impact

Build and ship full-stack features in TypeScript, with React on the frontend and Node.js on the backend
Own features end to end: clarify requirements, propose an approach, build, test, release and check the impact
Build merchant-facing subscription, billing and checkout flows that are clear and reliable
Improve the developer-facing side of the product through APIs, documentation, integrations, onboarding and error messages
Turn Figma designs into clean, accessible UI and suggest practical UX improvements
Keep the architecture simple, observable and maintainable without over-engineering
Conduct code reviews, write automated tests and maintain useful documentation
Use AI coding tools where they save time or improve quality
Work in a small team in Poland, close to product and the founders
Help shape the architecture as the product grows

Requirements

What you’ll need

Fluent Polish and residence in Poland
5+ years of professional software engineering experience, mostly in product or SaaS companies, not only agencies or consulting
Strong TypeScript and Node.js in production, with features used by real customers
Production experience with React
Experience taking at least one customer-facing feature from requirements to release
Comfortable working from Figma designs
Able to work independently in an early-stage team without detailed specs
Nice to have: Next.js, or Vue and Nuxt
Nice to have: Fastify, Express or NestJS
Nice to have: Payments or subscriptions, including recurring billing, payment providers, invoicing, proration, and dunning
Nice to have: E-commerce platforms such as Shopify, WooCommerce, Magento or headless commerce
Nice to have: Public APIs, SDKs, webhooks or developer documentation
Nice to have: Startup experience, especially in teams under 200 people
Nice to have: Hands-on use of AI and LLM tools, including Cursor, Copilot, Claude, and OpenAI