InPost Group

Senior Frontend Software Engineer

InPost Group

full-time

Posted on:

Location Type: Remote

Location: Poland

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Job Level

Senior

Tech Stack

JavaScriptNext.jsReactTypeScript

About the role

  • Develop new features focusing on architecture, scalability, and internationalization standards
  • Take ownership of your solutions — you own the outcome and quality of what you build
  • Drive the evolution of our shared design system to support multiple brands and markets
  • Own accessibility (a11y) as a first-class concern across all our international sites
  • Build complex UI features: block-based editor interactions, undo/redo, and previews
  • Experiment with and integrate LLM-based tools into our products and workflows
  • Drive AI adoption within the team — help establish best practices
  • Work with strict TypeScript to design safe, ergonomic APIs
  • Maintain and extend our E2E test suite (Playwright) to ensure stability across regions
  • Mentor junior engineers and foster a culture of technical excellence
  • Participate in architectural decision-making — we use lightweight RFCs and collective ownership to align on technical direction

Requirements

  • Proven experience in an international organization or working on large-scale products serving multiple markets
  • Deep knowledge of HTML and CSS (cascade, specificity, layout systems)
  • Strong React skills — combined with Engineering thinking: you are a software engineer, not just a React developer
  • Experience with Next.js, Astro, or similar modern frameworks
  • Strong TypeScript (strict mode, generics, conditional types)
  • Experience with multi-language / multi-site architectures (i18n, l10n complexities)
  • Solid web accessibility expertise (WCAG 2.1/2.2)
  • Experience designing and contributing to design systems
  • Understanding of SSR and hydration trade-offs
  • Experience mentoring or onboarding less experienced engineers
  • Practical experience with AI tools in development
  • Ability to work with cross-functional teams and influence stakeholders
Benefits
  • Opportunity to work in a diverse, international and cross-functional environment, along with leading experts.
  • Fulfilling careers with a range of benefits for employees and invests in providing training opportunities for their development.
  • Your impact will be visible instantly and you will be making a difference in our users lives
  • Real ownership — you'll make architectural calls that impact multiple markets
  • A platform with genuine complexity worth solving (international scale, complex CMS)
  • Space to experiment with AI tooling and bring new ideas into production
  • A mature, experienced team that values technical depth
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
TypeScriptHTMLCSSReactNext.jsAstroE2E testingPlaywrightweb accessibilityAI tools
Soft Skills
ownershipmentoringtechnical excellenceinfluencing stakeholderscollaboration