Senior Backend Software Engineer (GenAI)

WELCOME TO OLX

We're building marketplace sustainable ecosystems that millions of people depend on every month – to buy and sell cars, find homes, land jobs, and trade secondhand goods. It's commerce that matters: safe, smart, and environmentally responsible.

We do this with courage to innovate, commitment to outcomes, collaboration across 50+ nationalities and 7 markets, and a customer-led approach that puts real people first. Add a desire to win – and you get a culture that's ambitious, fast-moving, and built on trust.

Our brands – including AutoTrader, OLX, Otomoto Property24, and more – are loved by millions. And we're backed by Prosus, one of the world's largest tech investors.

Join OLX And See How Far You Can Go.

Join Our Team as Senior Backend Engineer!

Join one of our cross-functional teams in the Generative AI Innovation team, working remotely if you're already residing in Spain .

Our team is at the forefront of GenAl-powered solutions , developing cutting-edge services to enhance user experiences, optimize internal processes, and explore new business opportunities. You'll work on scalable, high-impact AI projects, collaborate with cross-functional teams, and contribute to research, proof-of-concept, and production-ready AI applications.

As part of our 1,000+ tech team across multiple locations, you'll collaborate with engineers, SREs, Data Scientists, and product teams to build scalable, high-impact solutions while reporting to an Engineering Manager who will support your growth and impact.

This position is for the GenAI Platform team. As part of the GenAI Platform team, you’ll help build the core capabilities that enable teams across the company to develop, integrate, and scale products powered by Generative AI.

We utilize Python and Vue 3 to develop scalable, cloud-native applications within a microservices architecture. Our services run on Kubernetes in AWS, with automated build and deployment pipelines managed through GitLab CI/CD.

If you're passionate about solving technical challenges and scaling cloud systems, we'd love to hear from you!

Who We Are Looking For

• Significant professional experience in software development with Python (preferred) or Golang
• Experience in large-scale web applications, an economic-thinking mindset, and the ability to design well-bounded domain systems
• Experience in architecting Cloud Native solutions, AWS is a plus
• Worked in multi-functional teams
• Believes in "you build it, you run it, you own it," ensuring high-quality code, debugging, optimization, and automation as key priorities.
• Experience in building AI/ML-enabled products

What You Will Be Doing

• Contributing to the planning, execution, and completion of backend development tasks, ensuring delivery is timely and meets quality standards.
• Developing and maintaining robust, secure, and scalable backend services as part of technical projects.
• Collaborating effectively with team members and stakeholders to ensure smooth integration and operation of backend solutions.
• Participating in code reviews, providing constructive feedback, and supporting team communication to foster a collaborative development environment.
• Applying best practices in software development, encouraging improvements, and working closely with product and frontend teams to deliver user-centric, efficient solutions.
• Building and deploying cloud-native backend applications using GitLab CI/CD pipelines to AWS or similar platforms, aligning with team and organizational strategies.
• Engaging with cross-team initiatives and contributing to broader engineering goals, such as participation in working groups or communities, to create a positive impact beyond your immediate team.

Our Hiring Process

• Recruiter Interview
• People Manager Interview
• Live Coding
• System Design

Our Benefits

• Competitive salary + annual bonus up to 15%
• Health and Dental Insurance (extendable to family)
• Remote or hybrid monthly allowance (incl. transportation supplement)
• Meal Allowance
• Gym Membership
• English and Spanish Classes
• Tax Declaration Assistance

If you think this is the role for you, send your application in English, and let’s talk!

If you'd like to learn more about us, take a look around our careers page and the OLX Group website. Follow us on LinkedIn and check out our OLX Group Engineering Blog .

Diversity, Equity and Inclusion at OLX

OLX 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 .

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.