Senior Backend Software Engineer - Remote (Poland)

WELCOME TO OLXAt OLX, we work together to build a more sustainable world through trade.We make it safe, smart, and convenient to buy and sell cars, find housing, get jobs, buy and sell household goods, and more. Our colleagues around the world help to serve millions of people around the world every month, through its well-loved consumer brands including OLX, Otodom , AutoTrader, Property24.Join OLX and see how far you can go.Join our team as a Senior Backend Engineer! Join one of our cross-functional teams in Motors, Real Estate, OLX Classifieds, or Platforms, working remotely from Poland . As part of our 1,000+ tech team across multiple locations, you’ll collaborate with engineers, SREs, and product teams to build scalable, high-impact solutions, while reporting to an Engineering Manager who will support your growth and impact.We use Golang and Kotlin, modernizing systems as we transition from legacy PHP and move towards a microservices architecture, deploying through GitLab CI/CD to AWS.If you’re passionate about solving technical challenges and scaling cloud systems, we’d love to hear from you!Who We Are Looking ForA product-minded engineer who thinks from a user perspective, understanding both the how and why behind technical solutionsSomeone with deep knowledge of programming languages, frameworks, and best practices, with strong mastery of data structures, algorithms, and software architecture to build and scale cloud-based systems. A backend engineer with strong background experience in Golang, Java/Kotlin, or PHP (preferred technologies). Flexible and capable of adjusting to changing project requirements, roles, and backend technologies as needed.A problem solver who can break down complex challenges into manageable solutions using both analytical thinking and creativity.An effective communicator who can explain technical concepts to both technical and non-technical stakeholders while documenting technical specifications and processes clearly.A developer who believes in "you build it, you run it, you own it," ensuring high-quality code, debugging, optimization, and automation as key priorities.Someone with solid experience with relational and non-relational databases (MySQL, DynamoDB, Redis, Memcached) and a strong understanding of AWS cloud architecture and Infrastructure as Code tools (Terraform, CloudFormation).A professional with experience in large-scale web applications, an economic-thinking mindset, and being able to design well-bounded domain systems.What You Will Be DoingLeading the planning, execution, monitoring, and completion of projects, ensuring timely delivery and adherence to quality standards.Contributing to complex technical projects, ensuring robust, secure, and scalable software solutions.Mentoring and guiding junior engineers, fostering a collaborative and productive work environment. This includes delegating tasks, providing feedback, and facilitating team communicationDriving innovation by encouraging new ideas, shaping software development, and collaborating closely with product management to create user-centric solutions.Developing and deploying cloud-native solutions using GitLab CI/CD to AWS, contributing to broader engineering strategy and cross-team collaboration.Creating impact outside of your team by helping drive the Engineering strategy and contributing to cross-team collaboration through inter-team working groups or community guilds, among others.Our Hiring ProcessRecruiter Interview People Manager InterviewLive Coding System Design Our BenefitsMonthly salary and an annual bonus (15%)Training and conference budget, and free access to Udemy coursesA benefits package with 300 points on the Mybenefit platform per month, private medical care provided by Luxmed, Ask Henry services, and much more IP rights’ costs - 80%100% remote work (as well as the possibility of working from our offices in Poznan and Warsaw)Diversity, Equity and Inclusion at OLXOLX values diversity and welcomes applicants of all races, ethnicities, disabilities, ages, genders, sexual orientations, religions, backgrounds, and experiences to apply. If this role excites you, we encourage you to apply, even if you don’t meet all the requirements - you may be just the right fit for this or other opportunities with us!OLX will process your personal data to assess your fit for the applied position. You may optionally consent to store your data for up to 12 months after the application process for consideration in future OLX roles. For more details on how your application data will be processed please check our Privacy Statement .Grupa OLX sp. z o.o. has implemented an internal procedure for reporting violations of the law. You have the right to report a violation of the law via website or by phone using any of the phone numbers listed on this site. The verification of reports and the undertaking of follow-up actions are handled by authorized members of the ethics and compliance team. All reports will be treated with the utmost care, confidentiality and in accordance with applicable law.We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.