Senior Software Engineer (Back-end)
Kraków. PL
5 d. temu
source : Just Join IT


Brainly is the world’s largest online community, uniting students, parents and teachers in solving their academic problems and exchanging knowledge.

Every month we are proud to be home for 350 million users . Besides delivering world class educational products we’re a technology company at heart.

Engineering teams at Brainly are proud of the work they do and the impact they make on the future of education worldwide.


Back-end engineers enjoy all the pros and cons of distributed programming. We ship changes to production multiple times a day and our delivery pipeline makes your code ready to join thousands of already running containers in just 5 minutes.

Our services land on Kubernetes that is hosted on AWS . We still have services running on Mesos / Marathon stack, but they get the same amount of love from us.

Services communicate either via messaging or good old HTTP. Our platform is defined entirely as code ( Terraform, Ansible ) and we get lots of goodies out of the box - alerting, logging and telemetry to name a few.

We are believers in the DevOps culture , but we still have some things to do to get there.


We also enjoy great engineering culture - we do code reviews and schedule time to write tests . We truly believe that our collaborative environment makes space for everyone to learn, improve and take our engineering to the next level.

We try to give back to the community as much as we can - you can see us at various conferences, read our blog posts or even come to one of our meetups that we proudly host in our lovely office.


We are looking for engineers who are ready to tackle complex challenges with the right tools. We don’t expect our future colleagues to have the experience with every language or tool we use at production.

We write mainly in Go and Python but, as everything in life, these can be learned and we are sure that our bootcamp will get you up to speed.

We are also a team of engineers with diverse backgrounds and we are more than happy to learn from your experience too.

Right now we are looking for Senior Software Engineer (Back-end) who will join one of our product teams - Content & Community.


The main goal of the Content & Community team is the creation of the tools used internally and by our community to ensure the finest user experience and best content quality on Brainly.

Content-wise, the team is focused on finding ways to provide best-in-class educational experiences for millions of students all over the world by ensuring and improving content quality.

They work on content coverage - making sure all questions will be answered, that all answers are correct, comprehensive, educational and really do help students learn better and faster.

Community-wise, they make sure Brainly is a place for all students to share knowledge and help each other in a safe and supportive atmosphere.


  • We implement solutions using a modern Go stack with some legacy bits written in Python, PHP and IaaC based on Terraform.
  • We use technologies like PostgreSQL, RabbitMQ, Docker, Kubernetes, AWS, GraphQL, Node.js, MySQL.
  • We care about quality, so unit, integration and end-to-end tests are an important part of our workflow.
  • This role includes system design, contribution to the codebase of backend microservices and infrastructure.

  • Designing, developing, and maintaining the code for internal tools : In the Content tools area, you will be responsible for delivering changes to the tools used for structured content production, enabling new Brainly end-users products.
  • In the Community tools area, you will be responsible for developing internal tools that increase students, parents, and teachers engagement and improve the safety of Brainly products.

  • Working within a team delivering value to content oriented projects in cloud-native environments
  • Solving complex challenges such as performance, scalability, and security
  • Collaborating with other software engineers to design scalable services, plan feature roll-out, and ensure high reliability and performance of your deliverables.
  • Conducting code reviews, contributing high-quality documentation, and building robust test suite
  • Required :

  • 4+ years of experience writing web services in a general purpose programming language
  • At least 2+ years production experience with Go
  • Experience with databases / data stores
  • Experience working with public cloud provider offerings (AWS, GCP, Azure etc) and Terraform IaaC
  • Experience building distributed systems at scale
  • Understanding of core testing principles
  • Fluent English
  • Nice to have :

  • Knowledge of Python
  • Knowledge of SQL
  • Experience building microservices
  • Experience working with messaging queues and / or streaming platforms
  • Experience working with GraphQL
  • Experience working with NoSQL databases
  • Knowledge of Domain Driven Design principles
  • Experience in leading the team
  • Your Attributes

  • You have ability to work unsupervised, with little management oversight
  • You have leadership skills, a high level of self-organization, ability to make your own decisions
  • You have a systematic problem-solving approach coupled with ability to brainstorm and co-create new solutions, both business and technical
  • You have a team player attitude and great communications skills

  • Location : Kraków or remotely
  • Salary : 16 000 - 20 000 PLN gross / monthly (employment contract), 100 - 130 PLN net / hour (B2B)
  • Start date : as soon as possible (however, we’re happy to wait for the right person)
  • Some of our benefits : Flexible working hours and the possibility to work remotely Personal development budget 800$ per year + unlimited time off policy for participation in conferences and workshops and access to an online learning platform with courses from Udemy, Harvard Manage Mentor and many others Fully paid private health care packages for you and your family (dental care included) provided by Luxmed Fully paid life insurance provided by WartaMultisport Plus card Access to the Mental Health Helpline - providing virtual support of external psychologists, psychotherapists, and coachesAskHenry services - personal concierge services to help you to settle your everyday matters (like Ikea shopping or shoemaker visit)Possibility to join one of our Employee Resource Groups and initiatives (Inclusion Council, Ladies at Brainly, Brainly Cares)If needed, additional budget for work remote work accessories

    Brainly is the world's largest peer-to-peer learning community for students, parents and teachers. At, and its group of websites around the world, students connect to both receive and offer help with homework problems and questions.

    The unique opportunity for students to freely ask questions and gain the confidence that comes from helping others and inspires students to learn in a collaborative community that receives more than 350 million users each month.

    Based in Kraków, Poland, with its US headquarters in New York City, Brainly is currently available in 35 countries. The total funding from current investors, including Naspers, General Catalyst Partners, Point Nine Capital, Runa Capital and Learn Capital equals $68.

    5M. More information about Brainly is available on

    By sending us your application, you agree that Brainly sp. z o.o. with its seats in Krakow, will process your data contained in the form below and in the documents you attach in to participate in recruitment.

    In connection with this, you have the right to withdraw your consents, the right to access to your data, the right to obtain their copy, rectify them, erase, limit their usage and also data portability right and object to their use by Brainly, as well as to lodge a complaint with the President of the UODO.

    If you have any questions regarding the use of information about you and exercising your rights related to this use, please contact our DPO - privacy brainly.

    com. If you want get to know more about how Brainly uses and process your personal data click here .

    https : / / /

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