Responsibilities
- Design and build high-availability backend systems supporting the OneBox parcel-locker network at large scale.
- Develop and maintain backend services, REST APIs, and microservices using C# and .NET technologies.
- Design and maintain relational data models and perform basic PostgreSQL performance tuning.
- Deploy and operate services using Azure, Docker, Kubernetes, and related cloud-native tooling.
- Implement asynchronous messaging and caching solutions using Azure Service Bus, Redis, or similar technologies.
- Contribute to architecture discussions, overall system design, and reliable engineering practices.
- Own services across the software development lifecycle in a “you build it, you run it” model.
- Work with physical machines and large device networks while scaling infrastructure for the OneBox fleet.
- Share knowledge and collaborate with senior engineers while growing toward end-to-end task ownership.
Requirements
- Solid, fluent proficiency in C# and .NET Core or ASP.NET.
- Solid experience designing and maintaining REST APIs and microservices.
- Confidence working with relational databases such as PostgreSQL, including data modeling and basic performance tuning.
- Hands-on experience with Docker and Kubernetes.
- Experience with asynchronous messaging systems such as Azure Service Bus or similar message brokers.
- Understanding of caching concepts and tools such as Redis.
- Experience with large IoT device networks or similar systems is a plus.
- Comfort participating in architectural discussions and contributing to system design.
- Willingness to share knowledge and promote good engineering practices.
- Proficiency in Polish and English at least at B2 level.
Benefits
- PLN 14 600–20 825 salary range under an employment contract, plus an annual bonus based on individual performance and company results.
- Hybrid 4/1 work model with flexible start times between 7:00 a.m. and 10:00 a.m., plus 30 days of occasional remote work.
- Warsaw office with kitchens, bicycle parking, terraces, raised desks, ergonomic chairs, and interactive conference rooms.
- Choice of cafeteria-plan benefits such as medical, sports, lunch packages, insurance, and purchase vouchers.
- Company-provided 16-inch or 14-inch Dell laptop with Windows and necessary accessories.
- Paid English classes, training budget, inter-team tourism, hackathons, and an internal learning platform.
- Additional volunteering day and company social events.
Tech Stack
Categories
About Allegro
Allegro is the most popular shopping platform in Poland and the largest e-commerce platform of European origin. We operate a marketplace model which means that customers can buy whatever they need from over 135,000 merchants, who can list an unlimited number of offers on our platform. We offer products in all key categories including Automotive, Fashion, Home&Garden, Electronics, Books and Collectibles, Kids or Health and Beauty. Each month, 22 million customers visit our platform, which is equivalent to almost 80% of all Internet users in Poland. They can choose from over 250m offers at the most attractive prices with maximum convenience including fast and free deliveries under the Allegro Smart! programme, modern financial services (Allegro Pay), as well as Poland’s widest 50k pickup points network. In 2019 we celebrated the 20th anniversary of Allegro in Poland. For over two decades, we have been serving consumers and promoting the idea of entrepreneurship in one of the most innovative areas of the economy. We have come a long way from an auction site for private individuals looking for a modern alternative to their local flea market. Today, we are a vibrant international marketplace platform for professional sellers and a must-have sales channel for top international brands and retailers. We currently employ more than 7000 employees and each of us ranks among the best experts in their field. Whether it’s in Technology, Customer Experience, Commerce, Delivery Experience or many other teams, we’re all proud to say that Allegro employs the best people on the market and all of us are ready to admit that it’s #goodtobehere. ESG Report 2022: https://allegro.pl/zobacz/esg Career at Allegro: https://jobs.allegro.eu/ Allegro Tech: https://allegro.tech/ Brand Journal: magazyn.allegro.pl Support & help: pomoc.allegro.pl // facebook.com/allegro