Software Engineer (Java/Kotlin)
English (regular) Scala (regular) Groovy (regular) Kotlin (regular) Java (regular) A hybrid work model that incorporates solutions developed by the leader and the team At Delivery Experience , we build the technology we need to make Allegro deliveries easy, cheap, quick and reliable. We take care of the critical services along the Allegro purchase pathway. Our key services are responsible for: expected delivery time estimations, calculated using statistical algorithms and ML, with predictions served more than 12, 000 times per second, selecting the best delivery method for the customer: traffic up to 1000 rps, response in 200 ms, integration with courier companies, which enables e. g. the
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- charge Smart! delivery programme, with up to 500 shipment status updates per second. Delivery Experience is also one of the fastest growing areas where we implement new, complex and ambitious projects: Allegro Fulfilment, which offers full logistics services to merchants in our warehouses, Allegro Last Mile – a pilot project involving collection points and parcel lockers. We are looking for people who: Are familiar with at least one of JVM languages: Java/Kotlin/Scala/Groovy Expect tasks that have a deeper meaning (not just “I was ordered to do it”) and want to enjoy the results of their work Want to be proud of the code they write, are open to feedback and are willing to share their knowledge during code reviews Have ideas and are willing to to get involved in designing solution architecture Can search for efficient solutions to meet users’ needs Are eager to continuously develop their skills and expand their knowledge Are fluent in English - min. B2 level What we offer: A hybrid work model that you will agree on with your leader and the team. We have
- located offices (with fully equipped kitchens and bicycle parking facilities) and excellent working tools (height-adjustable desks, interactive conference rooms) Long term discretionary incentive plan based on Allegro. eu shares Annual bonus up to 10% of the annual salary gross (depending on your annual assessment and the company's results) A wide selection of fringe benefits in a cafeteria plan – you choose what you like (e. g. medical, sports or lunch packages, insurance, purchase vouchers) English classes that we pay for related to the specific nature of your job Laptop with m1 processor, 32GB RAM, SSD - a 16” or 14” Mac
Book Pro or corresponding Dell with Windows (if you don’t like Macs), two monitors and all other gadgets that you should need Working in a team you can always count on — we have on board
- class specialists and experts in their areas of expertise A high degree of autonomy in terms of organizing your team’s work
we encourage you to develop continuously and try out new things Hackathons, team tourism, training budget and an internal educational platform, Mind
Up (including training courses on work organization, means of communications, motivation to work and various technologies and
- matter issues) If you want to learn more,  
check it out In your daily work you will handle the following tasks: Work in an autonomous interdisciplinary team and cooperation with product managers, data analysts and UX experts, Technology impact – the team is responsible for the architecture of the solution, Impact on what Allegro Customers see, starting from the first design and
- ups, through to tests and implementation With great power comes great responsibility, which is why we foreground the quality and full reliability of our solutions. You implement your code in the production environment and you become accountable for its efficiency and stability. Why is it worth working with us? Our technology stack is: backend services: Kotlin or Java (11 or newer) using Spring 
frontend: React or Angular 
we store the data in: Mongo
DB, Cassandra, Couchbase, Elasticsearch we process data using: Spark, Jupyter, Hadoop, GCP We operate on a large scale: architecture composed of over 1000 microservices divided into domains,  
communication asynchronously over the Hermes data bus based on Kafka (100, 000 rps of incoming traffic) 
traffic between services, measured by Service Mesh, is almost 2 million rps The IT team is made up of over 1700 members who have shared their knowledge at multiple conferences, such as Dev
Days, Geekon, Code Europe, Perspektywy Women In Tech Summit, Devoxx, Confitura, and
- create a blog: allegro. tech Microservices – a few thousand microservices and 1. 8m+ rps on our business data bus Big Data – several petabytes of data and Machine Learning used in production We practice Code Review, Continuous Integration, Scrum/Kanban, Domain Driven Design, Test Driven Development, Pair Programming, depending on the team Our internal ecosystem is based on
- service and widely used tools, such as Kubernetes, Docker, Consul, Git
Hub or Git
Hub Actions. This will allow you, from day one, to develop software using any language, architecture and scale, restricted only by your creativity and imagination.  
To match the scale, we also focus on building entire Platforms of tools and technologies that accelerate and facilitate
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- day development, and we ensure the best Developer Experience to our teams Technological autonomy: you get to choose which technology solves the problem at hand (no need for management’s consent). You are responsible for what you create Our deployment environment combines private Data Centers (tens of thousands of servers) and Public Clouds (Google Cloud and Microsoft Azure) Over 100 original open source projects and a few thousand stars on github We organize Allegro Tech Live event, a 100% remote version of our offline Allegro Tech Talks meetups, and we make guest appearances at the invitation of such communities as Warsaw AI, JUG (Poznań, Łódź, Lublin, Wrocław), WG. Net, Dare IT, Women in Tech Summit We focus on development as well. We organize hackathons and internal conferences (e. g. the annual Allegro Tech Meeting), our employees regularly participate in events both in Poland and abroad (Europe and USA), and each team has its own budget for training and study aids. If you want to keep growing and share your knowledge, we will always support you  
This may also be of interest to you: Allegro Tech Podcast → https://podcast. allegro. tech/ Booklet → https://allegro. tech/booklet. pdf
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