---
title: Senior Backend Engineer
company: Infolet
category: Programista
subcategory: Java
experience_level: Senior
work_mode: hybrid
location: Kraków
employment_type: B2B
salary_min: 20200
salary_max: 23500
salary_currency: PLN
salary_period: month
technologies: [Java, Spring Boot, OOP, Kubernetes, Azure, Kafka, PostgreSQL, Git, GitHub]
posted: 2026-09-22
valid_through: 2026-11-07
url: "https://solid.jobs/offer/38388/infolet-senior-backend-engineer"
---

# Senior Backend Engineer — Infolet

## Kluczowe informacje

- **Firma:** Infolet
- **Lokalizacja:** Miłkowskiego, Kraków
- **Tryb pracy:** Hybrydowo
- **Wynagrodzenie:** 20.2k–23.5k PLN netto/m (B2B)
- **Forma zatrudnienia:** B2B
- **Wymiar etatu:** 100%
- **Godziny pracy:** Elastyczne godziny pracy
- **Poziom doświadczenia:** Senior
- **Minimalne doświadczenie:** 5 mies.
- **Kategoria:** Programista
- **Specjalizacja:** Java
- **Numer referencyjny:** (2/985)
- **Data publikacji:** 2026-09-22
- **Aktywne do:** 2026-11-07

## Technologie i umiejętności

**Wymagane:**

- Java — zaawansowany
- Spring Boot — zaawansowany
- OOP — zaawansowany
- Kubernetes — zaawansowany
- Azure — zaawansowany
- Kafka — zaawansowany
- PostgreSQL — zaawansowany
- Git — zaawansowany
- GitHub — zaawansowany

## Języki

- Polski — ekspert
- Angielski — zaawansowany

## Opis stanowiska

PROJECT    Join the   Next Generation System Management (NGSM)   team developing a modern network management platform for mission-critical radio systems.    As a   Senior Backend Engineer  , you will design and develop scalable backend services and microservices, contribute to architectural decisions, and ensure high performance, reliability, and maintainability of distributed systems.    YOU WILL     Design, develop, and maintain backend services and   microservices using Java 21+ and Spring    Contribute to   architecture and technical design decisions   for distributed systems    Build and orchestrate microservices running in   Kubernetes and cloud environments    Develop event-driven solutions using   Kafka and Azure Event Hubs    Design, manage, and optimise   PostgreSQL   databases    Improve application   performance, scalability, reliability, and resource utilisation    Troubleshoot complex backend, networking, performance, and orchestration issues    Work with   Azure, Kubernetes, Linux, Git, and GitHub    Use   GitHub Copilot and Google Gemini   as part of the daily software development workflow    Maintain high standards of   clean code, testing, and software engineering practices    Participate in technical discussions, code reviews, and architectural improvements    Collaborate with other engineers in an   Agile environment

## Kogo szukamy

MUST HAVE     Strong commercial experience with   Java  , preferably   Java 21+    Very good knowledge of   Spring / Spring Boot    Strong understanding of   OOP, clean code, and software engineering principles    Experience designing and developing   microservices and distributed systems    Experience with   Kubernetes    Experience with cloud platforms, preferably   Microsoft Azure    Hands-on experience with messaging technologies such as   Kafka and/or Azure Event Hubs    Strong knowledge of   PostgreSQL  , including database design and optimisation    Experience with   performance tuning and optimisation   of backend services    Good knowledge of   Git and GitHub    Practical knowledge of   Linux   and scripting/automation    Understanding of   networking fundamentals  , including protocols, routing, and network services    Experience using   generative AI tools   such as GitHub Copilot or Google Gemini in software development    Very good troubleshooting and analytical skills    English allowing effective communication in an international engineering environment     NICE TO HAVE     Experience working with   mission-critical or high-availability systems    Hands-on experience with lab environments, including system configuration, installations, upgrades, and manual testing    Experience working as an   external contractor or consultant   within Agile engineering teams

## Benefity

**Szkolenia:**

- Szkolenia wewnętrzne

**Zdrowie:**

- Pakiet medyczny
- Ubezpieczenie
- Pakiet sportowy

**Kuchnia:**

- Kawa / Herbata

**Infrastruktura:**

- Parking rowerowy

**Inne:**

- Pakiet relokacyjny

## Lokalizacje

- Miłkowskiego, Kraków, Polska

## O firmie — Infolet

**Wielkość firmy:** 60+

**Strona WWW:** https://www.infolet.pl

Od 20 lat wspieramy liderów IT, dostarczając technologie, ekspertów i pełne wsparcie operacyjne - w tym legalizację pobytu i pracy międzynarodowych specjalistów IT

Do naszych projektów poszukujemy specjalistów Java, JavaScript, C embedded, C++, PHP, specjalistów od mobile, testerów oprogramowania, administratorów sieci i systemów i wielu innych.

## Aplikuj

Aplikuj na: https://solid.jobs/offer/38388/infolet-senior-backend-engineer

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*Źródło: https://solid.jobs/offer/38388/infolet-senior-backend-engineer · Wygenerowano: 2026-09-27T09:02:04Z*