Tech Stack / Keywords
Podsumowanie oferty
As a Senior Backend Engineer at Upside, you will design, build, and scale resilient backend systems for international clients while owning the architecture and technical direction. The role involves direct client collaboration, mentorship, and leading AI integration efforts. You will work in small teams with autonomy and ownership over solutions.
Wymagania
- 5+ years of experience building web applications, preferably with Python frameworks.
- Completed university degree in computer science, data science, or a related field.
- Deep understanding of monoliths, microservices, and messaging patterns.
- Expert knowledge of PostgreSQL and performance optimization at scale.
- Practical experience with CI/CD, Docker, and cloud platforms like AWS or GCP.
- Proactive, technology-driven mindset ready to experiment.
- Experience using AI tools such as Claude or Cursor.
- Fluent English (C1) for client collaboration.
Obowiązki
- Own the architecture and implementation of complex backend systems.
- Identify systemic risks and propose actionable solutions.
- Work directly with stakeholders to translate business needs into scalable technology.
- Share observations and lessons learned to help the team improve.
- Lead the implementation of Applied AI to improve products.
Benefity
- Work on complex projects for international brands with real impact.
- Small teams (3-9 people) with real accountability.
- Autonomy and ownership without micromanagement.
- Opportunity to contribute to open-source projects and internal AI research.
- Transparent engineering progression path.
- Hybrid work in Kraków with remote options within Poland.
- Salary for Senior Engineer: 20,800 - 25,900 PLN net + VAT.
Inne informacje
The data administrator is Upside Lab Sp. z o.o. based in Kraków. Candidates have rights regarding their personal data and it will be processed for recruitment purposes. Provision of certain personal data is mandatory by Polish labor law, refusal may result in inability to proceed with recruitment. Personal data is processed until the recruitment ends or consent withdrawal.
Upside
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