Staff Engineer

• Position: Staff Engineer (L4) • Location: Warsaw or Krakow • Working form: B2B contract About our client Our client is a fast-growing technology company developing modern HR and people-management solutions used by organizations across multiple markets. Their platform helps businesses streamline HR processes, from employee lifecycle management to payroll and performance tracking. The company focuses on building scalable, reliable systems that support growing organizations and distributed teams. Engineering plays a central role in shaping the product and delivering high-quality software that has a real impact on customers. The environment encourages collaboration, technical ownership, and continuous improvement. Role overview: Our client is looking for an experienced Staff Engineer to play a key role in defining the technical direction and delivering scalable software solutions. This senior individual contributor will collaborate closely with engineering leadership to shape the technical strategy, lead complex cross-team initiatives, and ensure high engineering standards across projects. The role combines hands-on development with technical leadership and mentorship of other engineers. Key responsibilities: • Define and execute the team’s technical strategy in collaboration with engineering leadership. • Lead complex, cross-functional engineering initiatives and drive projects from concept to delivery. • Maintain high standards of engineering excellence, architecture, and system reliability. • Mentor and support the growth of engineers across different seniority levels. • Align technical decisions with business goals and long-term product direction. Requirements: • Proven experience leading complex technical initiatives across multiple teams. • Strong expertise in software architecture and scalable system design. • Solid hands-on development background. • Ruby experience is required. • Experience building or scaling HRMS platforms is a strong advantage. • Excellent English communication skills (written and spoken). • Ability to operate effectively in ambiguous environments and influence stakeholders without formal authority. Offer: • Around 10,000 USD per month, B2B contract • Opportunity to work on impactful, large-scale engineering challenges. • Collaborative environment with strong engineering culture. • Professional growth opportunities and influence on technical strategy.