Senior Full-Stack Software Engineer

Workable workplace: remote; Workable locations: Wrocław, Lower Silesian Voivodeship, Poland. Kraków, Lesser Poland Voivodeship, PolandFull-TimeSenior

Salary not disclosed

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Job Details

Languages: Proficient written and spoken English
Required Skills: GraphQLPostgreSQLTypeScriptC#.NETRESTful APIsPlaywright

Requirements

Understand single-page application frameworks, including reactivity, state management, routing, and component architecture.
Have strong C#/.NET back-end fundamentals, including API design, authentication and authorization, error handling, and performance.
Understand asynchronous data flows, caching strategies, and GraphQL and REST API integration.
Have a strong command of modern CSS, responsive layouts, design tokens, and utility-first frameworks such as Tailwind CSS.
Know accessibility (WCAG), front-end performance (Core Web Vitals), and cross-browser compatibility.
Use AI coding assistants or agents to explore, scaffold, refactor, test, and document, and critically review their output.
Have experience with TypeScript and Vue 3 Composition API, or strong Angular or React experience and willingness to switch.
Know HTML5, CSS3/SCSS, Tailwind CSS, and PrimeVue or a comparable component library.
Know Apollo Client, schema-first development, GraphQL type code generation, and server-side GraphQL schema design, resolvers, pagination, batching, and query performance.
Have experience with PostgreSQL, SQL, and relational data modeling.
Use relevant testing tools and practices, including Vitest, Vue Test Utils, Playwright, Cucumber/Gherkin, and .NET unit and integration testing.
Know Git, GitLab CI/CD or a similar CI system, the Atlassian stack, Google Workspace, and Figma.
Have a customer-first product mindset, ownership of quality, clear communication, and a collaborative, proactive approach.
Be proficient in written and spoken English.

Responsibilities

Build customer-facing features across the Vue front end, GraphQL API, and C#/.NET back-end services.
Work with Product Managers and UX designers to examine requirements, test assumptions, and propose customer-focused options.
Keep the product usable, accessible, fast, and visually consistent.
Assess UI/UX designs for technical feasibility and agree trade-offs with the UX team.
Design and evolve GraphQL schemas for efficient UI consumption and server resolution.
Build reusable components, composables, and libraries for shared UI packages and the design system.
Use AI-assisted tools and review AI-generated code, tests, and designs before merging.
Help shape team AI practices, including guidelines, agent instructions, and review standards.
Improve client- and server-side performance, scalability, and maintainability.
Share knowledge, mentor colleagues, and use code reviews to raise code quality.

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