October 2, 2026
Staff Software Engineer I (Backend)
Senior • Remote
378,336 - 447,540 PLN/yr
Warsaw, Poland
Quick Facts
Role: Staff Software Engineer I (Backend)
Focus: Technical leadership for architecture and development of complex backend systems
Description
Lead the architecture and development of scalable, high-impact backend software systems. Translate business needs into reliable, performant, and maintainable services while driving engineering practices through reviews, documentation, and mentorship. Continuously evaluate emerging technologies to improve quality, efficiency, and scalability.
Responsibilities
Design and implement scalable, high-quality backend solutions for complex requirements
Drive architecture and design decisions across multiple systems
Collaborate with product managers, designers, and engineers on technical requirements and tradeoffs
Write clean, maintainable, efficient code and reinforce engineering best practices
Perform code and design reviews; provide actionable technical guidance
Troubleshoot complex issues using root-cause analysis and systematic problem solving
Optimize performance, reliability, scalability, and maintainability
Create and maintain technical documentation, architectural patterns, and reusable standards
Evaluate emerging technologies and recommend improvements to engineering quality and scalability
Mentor engineers to strengthen team capabilities
Requirements
5+ years of professional software engineering experience with programming languages/frameworks (Ruby on Rails, PHP, Python, JavaScript)
Bachelor’s degree in Computer Science/Computer Engineering or equivalent experience
Web application experience and familiarity with content management systems (WordPress, Strapi, Contentful)
Strong understanding of REST API design, building, and consumption
Proficiency with version control and collaborative workflows (Git)
Knowledge of performance optimization, caching, and CDNs
Experience with performance tuning, memory optimization, and diagnostic tools
Proficiency with CI/CD practices
Understanding of software architecture, system design, scalability, and reliability principles
Proven experience improving team efficiency/output using AI tools and automation
Ability to independently develop technical perspectives for ambiguous systems
Proactive research and adoption of current/emerging technologies
Ability to influence technical direction and collaborate cross-functionally
Benefits
Paid holidays and flexible time off
Innovation-driven culture
MacBook setup plus $500 workspace stipend
CET working hours to support a balanced schedule for the Poland-based team
Equity in a rapidly growing startup
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