Senior Backend Software Engineer (Java/Kotlin)

27.2k - 28.8k PLN27 200 - 28 800 PLN/ mies./ mies.B2BB2B (netto)

23.5k - 25k PLN23 500 - 25 000 PLN/ mies./ mies.UoPUmowa o pracę (brutto)

SeniorZdalnie·WrocławFull-time·B2B·Umowa o pracę

#475799·Dodano 5 dni temu·0

Źródło: justjoin.it

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Tech Stack / Keywords

Java Kotlin REST API CI/CD AWS SQL Microservices

Podsumowanie oferty

Join an international product company building a modern, cloud-native enterprise SaaS platform operating at global scale. You will architect, build, and maintain resilient backend microservices using Java or Kotlin, and own services throughout their lifecycle.

Wymagania

5+ years of professional experience in backend software development.
Strong commercial experience with Java and/or Kotlin.
Very good understanding of object-oriented programming, software design principles, and clean code practices.
Experience designing and developing REST APIs and backend integrations.
Experience building and maintaining production-grade backend applications.
Good understanding of distributed systems and modern backend architecture.
Practical experience with relational databases and SQL.
Strong knowledge of version control, especially Git.
Experience with automated testing and modern software engineering practices.
Ability to analyse technical problems, evaluate different approaches, and explain architectural trade-offs.
Strong ownership mindset and ability to work independently.
Fluent English and Polish for collaboration in an international environment.

Nice to have:

Experience with Spring Boot or other JVM frameworks.
Experience with event-driven or distributed architectures.
Experience with messaging or streaming platforms.
Familiarity with Docker and Kubernetes.
Experience with cloud environments such as AWS, Azure, or GCP.
Experience with CI/CD pipelines.
Knowledge of observability, monitoring, and production troubleshooting.
Experience with performance optimization and high-throughput backend systems.
Familiarity with NoSQL, search engines, or distributed data stores.
Experience working in a SaaS or product-oriented environment.
Experience contributing to technical architecture or leading larger engineering initiatives.

Obowiązki

Responsibilities:

Architect, build, and maintain high-throughput, resilient backend microservices in Java or Kotlin.
Drive technical decisions and system design, authoring design docs (RFCs) and evaluating architectural trade-offs, including scalability, latency, and data consistency.
Design and evolve robust APIs (REST, event contracts) and external integration layers for enterprise clients.
Own the full service lifecycle, from technical conception through CI/CD automation and automated testing to production deployment and live monitoring.
Continuously optimize performance, concurrency, fault tolerance, and resource utilization across distributed components.
Foster engineering excellence through code reviews, architectural pairing, and setting testing and clean code standards.
Collaborate with Product Managers, Platform/DevOps, and QA engineers to translate complex business requirements into clean, decoupled domain models.
Identify technical debt proactively and drive modernization initiatives across platform tooling and pipelines.

Benefity

Team Events budget to socialize outside of work.
Company events, including a Summer Party, Programmer's Day, and trips abroad.
Benefits including Luxmed, Multisport, and life insurance with Nationale Nederlanden.
Personal Training Budget with additional paid hours.
Passion Day: an extra day off for your hobby.
Flexible working hours, with core hours from 9:00 to 15:00.
High-quality work equipment, including two additional monitors and accessories.
No overtime or weekend work.

Spotkania integracyjne

Opieka zdrowotna

Karta sportowa

Ubezpieczenie

Dofinansowanie szkoleń

Płatny urlop

Elastyczne godziny

Premie

Inne informacje

The candidate must have been located in Poland for at least 5 years.
Recruitment process: HR screening with an IT Recruiter, a meeting with the client, then a final decision and job offer.

Holisticon Connect Sp. z o.o.

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