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September 12, 2026

Software Engineer 2 (Java/Kotlin / Python) - Allegro Translations

Senior • On-site

14,600 - 20,825 PLN/yr

Warsaw, Poland

Quick Facts

Massive-scale backend engineering in a cloud-native environment
Work on microservices with full ownership from design to deployment
Technologies: Kotlin, Python, Kafka, Kubernetes, MongoDB, AI integrations

Description

Design, build, and optimize high-availability, high-performance backend systems that handle thousands of requests per minute. Join an agile, autonomous team with full ownership of microservices, tackling distributed systems, data streaming, and algorithmic optimization. Build translation and continuous localization services powered by machine translations, collaborating with linguists and researchers.

Responsibilities

Code in Kotlin and/or Python for robust backend services
Design and implement system architectures from business requirements
Own microservices from design through deployment
Connect and orchestrate AI services to execute complex business logic
Improve performance through MongoDB optimization and database migrations

Requirements

Code in Kotlin and/or Python and have experience building robust backend systems
Proficient in MongoDB with proven database migration and large-scale dataset performance optimization
Hands-on experience connecting and orchestrating AI services
Enthusiasm for AI and keeping up with technical innovation
Ability to drive technical implementation analysis for complex solutions and convert business requirements into clear architectures
Excited to influence technical vision and shape new projects
English at least B2 level

Benefits

Flexible working hours in a hybrid model (4/1), with start times between 7:00 a.m. and 10:00 a.m.
30 days of occasional remote work
Salary range: PLN 14,600–20,825 (contract of employment; tax-deductible cost), plus annual performance/company bonus
Well-located offices and excellent work tools
Cafeteria plan fringe benefits (e.g., medical, sports, lunch packages, insurance, vouchers)
English classes paid for related to job needs
Training budget, inter-team tourism, hackathons, internal learning platform
Additional day off for volunteering
Social events and tech community involvement
Developer Experience and internal ecosystem with tools like Kubernetes, Docker, Consul, GitHub, GitHub Actions
Modern AI tools to automate repetitive tasks

Allegro

Allegro is a leading financial technology company based in Central Europe, renowned for its innovative contributions to the FinTech industry. The company is recognized for its large-scale operations, handling over 60 million requests daily and managing extensive data volumes. Allegro is committed to engineering excellence, boasting a culture that rivals top tech giants like FAANG companies, as evidenced by its high Pragmatic Engineer Score. The company values innovation, expertise, and impactful product development, with a focus on creating products that set industry standards. Allegro's team comprises top-class specialists and experts, many of whom are conference speakers, and the company actively participates in tech events and open-source projects. With a workforce of over 1700 IT professionals, Allegro fosters a culture of continuous development, technological autonomy, and community engagement through events like Allegro Tech Live and internal hackathons. The company is headquartered in Warsaw and emphasizes a flexible, collaborative work environment.

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