Senior Data Engineer (Brazil)

About Klar

We're turning one of the world's largest underbanked markets into something fairer, simpler, and more transparent. 7 million users served since 2019. Uber's first global credit card, built right here in Mexico. Klar Empresarial, a brand-new B2B solution bringing agile credit and smart accounts to SMEs who've been ignored by traditional banks for too long.

And a full banking license on the horizon, because our customers asked for it and we listened.

We move fast, we think big, and we go all in, because as our CEO puts it: "Growing doesn't always mean going further. Sometimes it means going deeper." 

Behind all of it is a team of 30+ nationalities, working across Mexico City, Berlin, and Argentina, obsessed with building financial products that are simpler, faster, and fairer than anything that came before.

This is Klar, and we're seeking the people who'll write the next chapter.

Our people

If you join us at Klar, you’ll be welcomed to a team that is rich in many talents and we are very proud! With our head office in Mexico City, and remote tech hubs in Berlin and Argentina, we are always learning something new about another culture or language. With so many people from different backgrounds and walks of life (young professionals, parents, LGBTQ+, neurodivergence), you’ll definitely find your people here! 

Our values

• Ownership - We own our successes & our failures as a team.
• Excellence - We do everything to the best of our ability & always seek to achieve a new level of excellence in our work.
• Inclusion - We believe we are stronger together and actively work to promote a safe, diverse, inclusive, and respectful culture.
• Customer Obsession - We understand the value Klar can bring to its customers & it’s always at the forefront of our decisions.
• Klarity - We communicate clearly & with authenticity. It’s in our name & it’s what we do.
  

About the role

We’re looking for a Senior Data Engineer to help us build and scale our data platform from the ground up. You’ll play a key role in designing and implementing modern data architectures, including data lakes, lakehouses, and streaming pipelines, that will power critical business use cases such as AI, real-time analytics, reporting, reconciliations, and fraud detection.

This role is highly impactful: you’ll be working on core platform initiatives from day one, shaping how data is ingested, stored, processed, and consumed across the company.

What you can expect:

• Design, build, and maintain scalable data lakes and lakehouses, with a strong focus on Apache Iceberg and AWS-native services (S3, Glue, Lake Formation, Athena).
• Develop streaming and batch data pipelines to handle large-scale, high-velocity data from multiple sources.
• Build out our real-time ingestion layer using Kafka (or similar), ensuring scalability and reliability.
• Optimize and maintain AWS-based infrastructure, including Redshift and surrounding services.
• Define and implement best practices for data quality, governance, monitoring, and reliability.
• Partner with engineering, analytics, and business teams to deliver scalable data solutions for AI/ML, fraud detection, and regulatory reporting.
• Take ownership of projects, work independently, and help guide the direction of our data platform.

What we are looking for:

• Bachelor’s degree in Computer Science, Engineering, or a related technical field.
• Proven experience as a Senior Data Engineer, with a track record of building large-scale data platforms.
• Must-have: Hands-on experience building data lakes/lakehouses with frameworks such as Apache Iceberg (you will be working on this from day one).
• Strong skills in SQL, Python, and Git.
• Deep experience with AWS cloud services (S3, Glue, Redshift, Athena; Lake Formation is a plus).
• Experience with streaming technologies like Kafka, RisingWave, or Flink.
• Familiarity with data orchestration tools (dbt, Mage.ai, Airflow, Dagster, etc.).
• Advanced English communication skills.
• Ability to work independently, adapt quickly, and deliver results in a fast-paced environment.

Desirable:

• Experience in Terraform for infrastructure as code.
• Experience working with Kubernetes

Our offer to you:

• Competitive salary based on performance and experience
• Chance of earning Klar stock options
• 26 days of paid vacation per year
• Computer devices
• Sponsored coaching and therapy sessions via Mantra Care
• International work environment with amazing and highly skilled people
• A world class team that helps you evolve your skills in areas you're interested in

Klar is a safe place for everyone!

We trust our highly skilled and diverse team and we’re committed to creating a welcoming and inclusive environment for new talents to flourish. We value diversity and welcome all applications regardless of gender, nationality, ethnic and social origin, religion/belief, physical abilities, age, sexual orientation and identity.

Should you require any accommodations through the recruitment process, please don’t hesitate to let us know how we can help!