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Remote · Backend Engineer

Backend Engineer - GenAI

OLX · Remote Spain, Spain · Spain

Remote Full time Posted Open until 18 Oct 2026
  • Remote Remote Spain, Spain — job location

The job, in the employer's words

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.
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 OLX GENAI PLATFORM ENGINEERING TEAM

Note: This role is based in Spain.

We are looking for a mid-level Backend Engineer for our GenAI Platform team.

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

We utilize Python 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 would love to hear from you!

 

What we are looking for:

  • Significant professional experience in software development with Python (preferred), Java/Kotlin or Golang.
  • Experience building and scaling large-scale web applications, with an economic mindset and the ability to design well-bounded, maintainable domain systems.
  • Strong experience architecting and building Cloud Native solutions (experience with AWS is a plus!).
  • Exposure to and strong interest in AI/ML systems or GenAI tools/APIs.
  • Eagerness to understand how things work and embrace a "you build it, you run it, you own it" mindset.
  • Focus on high-quality code, debugging, optimization and automation as key priorities.
  • A team player who is open to discussions, cross-team collaboration and knowledge sharing.
  • A problem solver who approaches challenges with both a technical and user-first mindset to build impactful solutions.

What you will be doing:

  • Taking part in 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.

Our hiring process:

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

What we’ll give you:

  • 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.

Requirements mentioned

  • Significant professional experience in software development with Python (preferred), Java/Kotlin or Golang.
  • Experience building and scaling large-scale web applications, with an economic mindset and the ability to design well-bounded, maintainable domain systems.
  • Strong experience architecting and building Cloud Native solutions (experience with AWS is a plus!).
  • Exposure to and strong interest in AI/ML systems or GenAI tools/APIs.
  • Eagerness to understand how things work and embrace a "you build it, you run it, you own it" mindset.
  • Focus on high-quality code, debugging, optimization and automation as key priorities.
  • A team player who is open to discussions, cross-team collaboration and knowledge sharing.
  • A problem solver who approaches challenges with both a technical and user-first mindset to build impactful solutions.

No Mondays shows this listing as the employer published it. Check the details on the employer's site before you apply.

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