Senior Software Engineer (Node.js)

TL;DR

Senior Software Engineer (Node.js/TypeScript): Building a brand-new, high-scale, event-driven backend system for public data infrastructure with an accent on architectural design, scalability, and performance. Focus on engineering core services on AWS, driving end-to-end product development, and mentoring the engineering team in the new Kraków hub.

Location: Must be based in or able to work from Kraków, Poland (Hybrid)

Company

hirify.global is a profitable, fast-growing company building foundational public data infrastructure for cybersecurity and risk protection, now establishing a major engineering hub in Kraków.

What you will do

• Develop and maintain backend services using Node.js and TypeScript.
• Design high-performance APIs and event-driven architectures on AWS.
• Build scalable, reliable systems capable of handling intensive data workloads.
• Lead feature development end-to-end from initial design to production.
• Collaborate cross-functionally with product and engineering teams.
• Mentor teammates and promote best practices in quality, testing, and security.

Requirements

• 5+ years of production experience with Node.js and TypeScript.
• Strong professional experience with AWS services (Lambda, ECS, S3, RDS).
• Deep understanding of system design, scalability, and event-driven architectures.
• Proficiency in modern testing frameworks like Vitest or Jest.
• Excellent communication skills in English.
• Ability to thrive in a fast-paced environment and work independently.

Nice to have

• Experience with Go or React.
• Background in distributed systems or AI tooling and LLMs.
• Experience with SQL/NoSQL databases, Docker, Kubernetes, and CI/CD.

Culture & Benefits

• Competitive compensation aligned with the Kraków market.
• Flexible UoP or B2B employment options.
• 23 business days of paid vacation and 10 paid sick days per year.
• Hybrid work model with equipment provided.
• Opportunity to shape a new product and build a core engineering team from day one.
• Stable, profitable company environment with long-term vision.