Senior Backend Software Engineer

Summary

Join OLX as a Senior Backend Engineer and contribute to building scalable, high-impact solutions for our global platforms. Work remotely from Poland as part of a cross-functional team, collaborating with engineers and product teams. Utilize Golang and Kotlin, modernizing systems and deploying through GitLab CI/CD to AWS. Lead projects, mentor junior engineers, and drive innovation within a collaborative environment. Contribute to the broader engineering strategy and collaborate across teams. We are looking for a product-minded engineer with strong backend experience in Golang, Java/Kotlin, or PHP, and solid experience with relational and non-relational databases and AWS.

Requirements

• A product-minded engineer who thinks from a user perspective, understanding both the how and why behind technical solutions
• Someone 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

Responsibilities

• Leading 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 communication
• Driving 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

Benefits

• Monthly salary and an annual bonus (15%)
• Training and conference budget, and free access to Udemy courses
• A 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)