Sr. Staff Engineer - Database (Contract)
Krakow, Poland (Hybrid)
Engineering /
Contract /
Hybrid
Sonatus is a well-funded, fast-paced, and fast-growing company whose technologies and software help automakers build dynamic software-defined vehicles. With two generations of solutions already on the road with a top global OEM, our vehicle and cloud software solutions are at the forefront of the digital transformation of vehicles. The Sonatus team is a talented and diverse collection of technology and automotive specialists hailing from many of the most prominent companies in their respective industries.
We are seeking an experienced and highly skilled Senior Lead Database Engineer with deep expertise in both SQL and NoSQL databases, with a strong focus on time-series data, OLAP, and OLTP systems. This role is crucial for designing, implementing, and optimizing high-performance, scalable database systems that support our data-intensive applications. As a Senior Staff Database Engineer, you will work closely with our data engineering, analytics, and product teams to ensure the reliability, scalability, and efficiency of our database infrastructure.
Duties and Responsibilities
- Lead the design and architecture of robust, scalable, and high-performance database solutions, with a particular emphasis on time-series data, OLAP, and OLTP databases.
- Evaluate and recommend appropriate SQL and NoSQL database technologies (e.g., PostgreSQL, TimeScale, Cassandra, Apache Druid, Apache Pinot) based on project requirements.
- Design and implement data models that efficiently support a wide range of queries and data operations.
- Develop, optimize, and maintain complex SQL queries, stored procedures, and indexing strategies to improve database performance.
- Implement and manage time-series databases to handle high-frequency data ingestion and query processing.
- Optimize OLAP/OLTP databases for performance, scalability, and reliability, ensuring minimal latency for transactional and analytical workloads.
- Monitor and tune databases to ensure optimal performance, including query optimization, indexing, and storage management.
- Work with cloud backend engineering teams to design ETL pipelines that move and transform data efficiently across different storage systems.
- Implement data partitioning, sharding, and replication strategies to ensure high availability and scalability.
- Ensure data integrity, consistency, and security across all database systems.
- Collaborate with cross-functional teams, including AI Engineers, software engineers, and product managers, to understand data requirements and deliver database solutions that meet business needs.
- Provide technical leadership and mentorship to junior engineers, guiding them in best practices for database design, development, and management.
- Drive continuous improvement initiatives in database technologies, tools, and processes.
- Stay up to date with the latest advancements in database technologies, particularly in time-series and OLAP/OLTP systems.
- Experiment with and evaluate new database technologies and tools to enhance our data architecture and infrastructure.
- Contribute to the development of internal tools and frameworks to support database development and operations.
Design and Architecture:
Database Development and Optimization:
Data Management and Integration:
Collaboration and Leadership:
Research and Innovation:
Qualifications and Experience
- Bachelor's or Master's degree in Computer Science, Information Technology, or a related field.
- 10+ years of experience in database engineering, with a strong focus on both SQL and NoSQL databases.
- Proven expertise in designing and managing time-series databases (e.g., TimescaleDB, Apache Druid, Apache Pinot, etc) and OLAP/OLTP systems with high scale
- Advanced proficiency in SQL, including query optimization, indexing, and stored procedure development.
- Strong experience with NoSQL databases (e.g., MongoDB, Cassandra, Scylla, etc) and their respective data modeling techniques.
- Deep understanding of time-series data concepts, architecture, and performance tuning.
- Experience with OLAP technologies and tools such as Apache Druid, ClickHouse, or similar.
- Familiarity with cloud-based database services (e.g., AWS RDS, Google Cloud BigQuery) and infrastructure as code (IaC) tools (e.g., Terraform, CloudFormation).
- Strong programming skills (e.g., Golang, Java, Scala, etc).
- Excellent problem-solving and analytical skills, with a keen attention to detail.
- Strong communication and collaboration skills, with the ability to work effectively in cross-functional teams.
- Leadership qualities with a proven ability to mentor and guide junior team members.
Desired Skills and Experience
- Experience with streaming data platforms (e.g., Apache Kafka) and integrating them with time-series databases.
- Knowledge of containerization and orchestration technologies (e.g., Docker, Kubernetes) as they pertain to database deployment.
- Experience with real-time analytics and data warehousing solutions.
$107,000 - $145,000 a year
The above salary range is a general guideline and represents a good faith estimate of what Sonatus ("Company") could reasonably expect to pay for a position. The pay offered to a selected candidate will be determined based on factors such as (but not limited to) the scope and responsibilities of the position, the qualifications of the selected candidate, departmental budget availability, geographic location and external market pay for comparable jobs. The Company reserves the right to modify this range in the future, as needed, as market conditions change.
Consider being part of the Sonatus team and receive the following:
Benefit Offerings includes:
- Competitive compensation and equity program
- Health care plan (Medical, Dental & Vision)
- Flexible and Dependent Care Expense program
- Retirement plan (401k)
- Life Insurance (Basic, Voluntary & AD&D)
- Unlimited paid time off per year
- Hybrid office work-arrangement/flexibility
Perk Offerings include:
- Complimentary lunches, snacks and beverages during on-site working days
- Wellness benefit allowances (towards gym membership and fitness programs)
- Internet reimbursement
- Computer Accessory Allowance
Employee Engagement Offerings:
- Departmental team building and outings
- Employee Referral Program
- Culture/Employee Satisfaction Surveys - Feedback matters!
- Peer Award Program (monthly)
- Innovative Award Program (annual)
Sonatus is a fast-paced and innovative company and are seeking team members who are passionate about making a difference. If you are ready to take your career to the next level, we highly encourage you to apply.
To all recruitment agencies: Sonatus, Inc. ("Sonatus") does not accept unsolicited agency resumes. Please do not forward resumes to our careers alias or other Sonatus' employees. Sonatus is not responsible for any fees associated with unsolicited activities.