We’re seeking a Database Performance Engineer to join our Engineering Infrastructure team at Seamless.AI.
In this role, you’ll be responsible for optimizing database performance, scalability, reliability, and compliance across our high-traffic data systems. You’ll work closely with engineering, product, and DevOps teams to ensure seamless data flow, sub-second query times, and high availability across our PostgreSQL and OpenSearch clusters.
Your work will have a direct impact on system performance, customer experience, and operational efficiency as you identify, resolve, and prevent bottlenecks in mission-critical data environments.
Responsibilities- Design, implement, and optimize SQL queries, stored procedures, and indexes to achieve low-latency performance.
- Fine-tune PostgreSQL configurations for maximum throughput and minimal resource utilization.
- Collaborate with backend and infrastructure engineers to diagnose and resolve performance issues.
- Manage and optimize large-scale database clusters, including replication, sharding, and partitioning.
- Ensure database uptime, backup, recovery, and disaster recovery objectives (RTO/RPO) are consistently met.
- Set up and monitor performance metrics, alerts, and dashboards (e.g., using pg_stat_statements, Prometheus, Grafana).
- Conduct capacity planning and load testing to prepare for traffic spikes and data growth.
- Partner with Security and Compliance teams to ensure database access, data encryption, and retention policies meet regulatory standards.
- Develop and maintain documentation for database configurations, maintenance routines, and operational procedures.
- Support query performance reviews and educate developers on best practices for writing efficient SQL.
- Optimize integrations between relational (PostgreSQL) and document-based (OpenSearch, Elasticsearch, MongoDB) systems.
- Participate in incident response and postmortem analysis to continuously improve reliability.
Skillset
- 5+ years of experience as a Database Engineer, Database Administrator (DBA), or Performance Engineer working on PostgreSQL in production.
- Deep understanding of query planning, indexing strategies, and PostgreSQL internals.
- Experience with OpenSearch, Elasticsearch, or other document-based databases (preferred).
- Strong knowledge of SQL optimization, database partitioning, replication, and caching strategies.
- Hands-on experience with performance profiling, benchmarking tools, and observability stacks.
- Proficiency in scripting or automation tools (Python, Bash, Ansible, Terraform).
- Familiarity with cloud-based database services (AWS RDS, Aurora, or GCP Cloud SQL).
- Solid understanding of data security, compliance, and access control principles.
- Excellent problem-solving skills and ability to work in fast-paced, cross-functional environments.
- Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent practical experience).
- Proven experience managing and optimizing large-scale production databases.
- Strong collaboration skills with Engineering, DevOps, and Security teams.
- U.S. work authorization required (Visa Sponsorship not included).
Since 2015, Seamless.AI has helped sales teams maximize revenue with the world’s first real-time B2B search engine. As one of Ohio’s fastest-growing companies, we’ve earned top industry accolades, including G2’s 2025 Best Software Products (#1 Highest Satisfaction Product), Purpose Jobs’ 2024 Best Places to Work, and LinkedIn’s Top 50 Tech Startups (2020, 2022, 2023). We are committed to a diverse, inclusive workplace and do not discriminate based on race, religion, gender, sexual orientation, age, or other protected statuses. Visa sponsorship is not available; applicants must be authorized to work in the U.S.
Top Skills
What We Do
Prospecting and relationship-building can be a labor-intensive, costly and opaque process undermined by outdated technology, information, and data entry. We share that frustration, which is why we have created a tool that allows you to Seamlessly connect with your target market, build profitable relationships and acquire new clients - all by using the power of AI.
We are built on the core purpose of creating “great lives for great people,” which extends beyond our great employees to our clients, partners, and supporters. This guiding principle informs every decision we make, while also attracting a diverse body of intelligent and talented people who, in turn, reinforce these values daily to everyone we engage with.
Mission: To help every professional globally create new relationships and opportunities, faster than ever before using the power of artificial intelligence. We want to help the world connect to opportunity and positively impact billions!
Why Work With Us
Seamless.AI stands out by working with every employee to help them achieve their full potential through our benefits: 401k, remote work, work-life balance, parental leave, career advancement, on-the-job training, coaching, competitive pay, performance incentives, unlimited sales commissions, transparent leadership, and more!
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