Data Engineer

Sonar helps prevent code quality and code security issues from reaching production, amplifies developers' productivity in concert with AI assistants, and improves the developer experience with streamlined workflows. Sonar analyzes all code, regardless of who writes it—your internal team, genAI, or third parties—resulting in more secure, reliable, and maintainable applications. Rooted in the open source community, Sonar’s solutions support over 30 programming languages, frameworks, and infrastructure technologies.

Today, Sonar is used by over 7 million developers and 400 000 organizations worldwide, including the DoD, Microsoft, NASA, Master Card, Siemens, and T‑Mobile.

We believe in developing great products that are supported by great internal teams and a strong culture. We are highly committed and obsessed with the company, users, each other, and our open source community. We have high standards and hold each other accountable for acting with positivity, dedication, thoughtfulness, empathy, and passion daily. We are deliberate in our decisions with high clarity of intention, yet feel extreme urgency and move forward quickly.

We are effective and operationally efficient
, operating collectively as One Team to accomplish our goals.

At Sonar, we’re a group of brilliant, motivated, and driven professionals working hard to help supercharge developers to build better, faster. Sonar helps to continuously improve code quality and code security while reducing developer toil, allowing developers to focus on doing more they love.

• Contribute to the data platform and produce high-quality self‑served components.
• Get involved in the definition of new features and technologies that will impact all Sonar Source teams and hundreds of thousands of developers worldwide.
• Help improve the team's effectiveness by challenging and continuously improving existing processes, designs, and engineering practices.

• Design and implement data retrieval, storage, transformation, and load capabilities following Data Mesh principles.
• Continuously enhance the data platform and propose, implement, and manage data handling services according to stakeholders' needs (Product Managers, Marketing, Sales, engineering teams, …).
• Establish top‑class end‑to‑end pipelines, including data cleaning and modelling.
• Develop and deploy connectors to data sources of interest.
• Assemble large, complex data sets that meet functional and non‑functional business requirements.
• Maintain evergreen data flow documentation across systems.
• Collaborate on Data Governance with other stakeholders/domains.
• Implement appropriate entitlement controls around data access.
• Work with the security function to ensure we adhere to expected security standards.
• Collaborate with the incident manager to bring your expertise when asked and own implementation of recommendations from post‑mortems.

• Strong experience building end‑to‑end ETL, ELT pipelines with batch or streaming technologies in Python.
• Solid software engineering experience, focusing on developing analytics components in the cloud; exposed to big data architecture essentials, streaming, data manipulation using SQL, ETL batches, data store administration.
• Strong experience with the AWS platform, including Glue, Red Shift, Data Bricks, Cloud Formation, S3, Cloud Watch, Lambdas, etc., or equivalents.
• Good knowledge of data engineering concepts (Data Lake, Data Warehouse, etc.).
• Experience with infrastructure‑as‑code tools (CDK, Cloud Formation, Terraform).
• Fluency in English, written and spoken.
• Experience with SQL, dbt, and visualization tools is a plus.

• Robust time‑off allocation with 27 PTO days for employees based in the Geneva region and additional days based on seniority.
• We contribute 60 % of the total cost for your pension; 13.5 % to 15.5 % of your base salary for savings; 2 % for risk.
• Commuting support: sustainable mobility options, including carpooling and a refund of 60 % of the annual transportation subscription.
• Global workforce with employees in 20 + countries representing 35 + unique nationalities.
• An…