Staff Software Engineer

Upside

full-time

Posted on: 9/22/2025

Origin: • 🇵🇱 Poland

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💰 PLN 26,500 - PLN 37,000 per month

Lead

CloudJavaScriptMicroservicesPostgresPythonRuby

About the role

Lead autonomous engineering teams (3–9 people) in designing, building, and deploying complex digital platforms.
Drive architecture and technology choices for large-scale systems.
Mentor engineers, foster technical excellence, knowledge sharing, and a collaborative culture.
Partner directly with clients, technology leaders, and founders to co-create impactful solutions.
Balance technical depth with business context to deliver long-term value.
Ensure engineering best practices, code quality, and CI/CD pipelines are consistently applied.
Stay close to AI/ML solutions and identify opportunities to integrate them into client solutions.

Extensive commercial experience in building web-based applications (+7 years), including 2+ years in a leadership role (Tech Lead, Team Lead, or similar).
Solid expertise in at least one of the following frameworks: Python, Ruby, JavaScript; readiness to explore new technologies.
Proven ability to design and oversee complex architectures (monoliths, microservices, distributed and asynchronous systems, messaging patterns, scalability).
Strong understanding of databases (PostgreSQL preferred) and performance optimization at scale.
Experience in cloud-native environments and CI/CD practices.
Excellent consulting skills; ability to communicate effectively with technical and non-technical stakeholders (CTOs, founders, product leaders).
Demonstrated ability to mentor engineers, provide constructive feedback, and foster technical growth.
Fluent English (clear written and verbal communication).