BI Engineer v Česko

Job offer

Do you enjoy making sense of data and building the data infrastructure that drives company-wide decision-making? Would you like to help build a new SaaS product from the ground up?

We’re looking for a BI Engineer to join the Phonexia Voice Guardian team. Voice Guardian is our new cloud-based platform for voice biometrics and fraud prevention in bank contact centers.

Your Role

As a BI Engineer, you will be responsible for:

• Designing, building, and managing the data solution for the Voice Guardian platform,

• collecting and processing product, billing, and performance data,

• preparing data for reporting and visualization, including dashboards for Product, Engineering, and Sales,

• integrating and exporting data to customers’ and partners’ systems,

• ensuring data quality, consistency, and auditability, especially for billing,

• gradually expanding the data solution to connect Product, Sales, Marketing, and Finance.

Skills You Will Need

To excel in this role, you should be proficient in:

• Experience designing data solutions, including dimensional modeling (Kimball, star/snowflake schema) or Data Vault. You understand when different approaches make sense

• Strong knowledge of databases, including relational and document databases and their trade-offs.

• Experience with data tools and orchestration, such as dbt, Airflow, Dagster, or similar.

• Python skills for data processing, automation, and integrations.

• Experience with cloud data services. We use AWS, so experience with S3, Athena, Glue, Redshift, or Aurora is a plus. Experience with another cloud platform is also welcome.

• A strong focus on data quality and accuracy — especially when it comes to billing, where every cent matters.

• Good English communication skills, including the ability to write documentation and communicate with international colleagues and customers.

Nice to have:

• Experience with streaming data and Kafka,

• experience building and maintaining ETL/ELT pipelines,

• knowledge of BI and data visualization tools such as Power BI, Tableau, Looker, Superset, or QuickSight,

• experience with lakehouse technologies and data formats, such as Parquet, Iceberg, or Delta Lake,

• experience with data observability or usage-based billing in SaaS,

• experience integrating CRM, marketing, or financial data,

• understanding of data privacy and security, including GDPR and multi-tenant environments.

What Makes This Role Unique?

You won’t be maintaining legacy reports. You’ll design the Voice Guardian data layer from the ground up and have a real say in how it is built.

You’ll work in a small, experienced team where your work has a visible impact on billing, platform performance, and the future of the product.

Why Phonexia?

• Modern and cool – Did you know that human voice is as unique as a fingerprint? That is what Phonexia focuses on. We develop technologies and solutions that solve everyday challenges and unlock voice potential.

• Culture and cooperation – We help each other, learn from each other, and stand behind each other. We are a team. Phonexia's culture is unique. We are also proud to be the best Czech company of 2021 when we won first place in the IBM Company of the Year contest.

• Learn and grow – Conferences, workshops, mentoring, language lessons... Every employee can use an educational budget for personal and professional development.

• Agile – We need to be agile as we focus on what business and our customers need. Our work depends on our customers.

• Flexibility – Flexible working hours and working from home? We value team cooperation, and we believe that the team spirit arises from personal interactions. However, occasional remote work provides a good time to concentrate, finish complex tasks, and to lower daily travel time. That said, we would like you to work from our offices in Brno-Královo Pole.

• Benefits – We know you are curious! 😊 We've taken a bold step to enhance our work-life balance by adopting a four-day workweek. In addition to this, our benefits package includes vacation days, sickdays and meal allowance. Multisport or Benefit Plus, office refreshments, access to a game room, and engaging company events.

It's 55 of us together who are pushing the boundaries of speech technologies forward.
Do not hesitate to join us!