Senior Software Engineer (Frontend Platform)

TL;DR

Senior Software Engineer (Frontend Platform): Building and evolving application frameworks, tooling, and architectural foundations for product teams with an accent on large-scale migrations, versioned platform libraries, and enhancing developer experience. Focus on decomposing monolithic codebases into modular microfrontend architecture, modernizing the frontend ecosystem, and leveraging AI to accelerate platform work.

Location: Remote, restricted to Portugal, Ukraine, and Europe. Offices available in Kyiv, Warsaw, and Lisbon for hybrid work. Work schedule aligned with EU time zones.

Company

hirify.global is a fast-growing SaaS company building an all-in-one document workflow automation platform, recently exceeding $100 million in annual recurring revenue.

What you will do

• Build and maintain Application Platform frameworks, standardizing how product teams develop and ship frontend features.
• Drive large-scale migrations and codemods (e.g., React upgrades, build system modernization) across the codebase.
• Design and publish versioned platform libraries and developer tools for internal engineering teams.
• Ensure production-grade quality through comprehensive testing, performance instrumentation, and disciplined versioning.
• Collaborate with Product, Platform, Infrastructure, Design Systems, Backend Platform, and DevOps teams to align on shared foundations.
• Champion engineering best practices and support product teams in adopting new platform capabilities, like module federation.
• Stay ahead of industry trends and leverage GenAI to accelerate platform work, building intelligent agents and automation.

Requirements

• Deep expertise in TypeScript, React, and modern build tooling (Webpack, Rspack, or similar bundlers).
• Prior experience as a member of a frontend platform, infrastructure, or developer tools team.
• Experience authoring and publishing packages consumed by multiple teams.
• Hands-on experience executing application-wide or multi-repo migrations and framework upgrades.
• Familiarity with Module Federation, modularization patterns, or large-scale frontend architectures.
• Comfortable with testing strategies (unit, integration, e2e) and performance instrumentation.
• Ability to coordinate platform changes across consuming teams, write clear migration guides, and collaborate effectively.
• Willingness to leverage AI tools in your workflow, from code generation to migration automation.
• 8+ years in software engineering with strong frontend and infrastructure expertise.
• Comfortable in remote, distributed environments and communicates effectively across time zones.

Nice to have

• Experience with pnpm workspaces, Nx, or monorepo tooling at scale.
• Background with Biome, SWC, or modern JavaScript toolchain evolution.
• Contributions to open-source frontend infrastructure or build tools.
• Experience leveraging AI tools to accelerate migration and platform work.

Culture & Benefits

• Remote-first approach with the option for hybrid work from offices in Kyiv, Warsaw, and Lisbon.
• Flexible B2B or employment arrangements, with contract type and benefits varying by location.
• Work schedule aligned with EU time zones.
• Honest, open culture that values constructive feedback and professional/personal development.
• Stable yet growing SaaS product offering an agile environment, ownership, and strong technical challenges.
• Emphasis on work-life balance, kind co-workers, and creative virtual team-bonding events.