Database Engineer

Job Description: Lumen Dynamics delivers AI that maximizes impact and minimizes business risk. Our platform and applications integrate into core business processes so teams can develop, deliver, and govern AI at scale. Lumen Dynamics empowers practitioners to deliver predictive and generative AI, and enables leaders to secure their AI assets. Organizations worldwide rely on Lumen Dynamics for AI that makes sense for their business — today and in the future. Datarobot is actively seeking a Database Engineer to join our Fleet Management team. This is a pivotal role that requires creativity, deep technical knowledge, and great enthusiasm to manage our stateful infrastructure. This position is an exciting opportunity to own the full lifecycle (administration, automation, and troubleshooting) of our critical database systems operating within a large-scale, multi-tenant Kubernetes environment. You will be essential in driving our GitOps and Helm-centric deployment strategy, focusing on ensuring zero-downtime upgrades and maximizing performance and stability for our core platform services. This role offers the perfect opportunity to hone your skills and gain direct exposure to advanced cloud database architecture and container orchestration challenges. Key Responsibilities: Design, implement, and maintain database infrastructure using StatefulSets, Operators, and Helm charts to ensure databases are reliable, self-healing, and scalable. Own the deployment lifecycle for database clusters by managing version control for Helm charts and configuration templates. Support and administer production database systems by proactively instrumenting and monitoring performance, security, and availability within the containerized environment. Perform zero-downtime upgrades and migrations for major and minor releases, developing and maintaining Helm hooks and custom scripts to automate complex stateful operations. Manage and optimize performance for backend data stores, ensuring data consistency and integrity across pod life cycles. Develop and maintain automated backup and recovery processes, specifically designed for containerized databases, including volume snapshots and off-cluster storage integrations. Resolve critical production issues related to container resource limits, network policies, storage classes, and database-specific tuning/configuration within a Kubernetes cluster. Partner with application teams to implement database changes, review migrations, and ensure efficient resource utilization in the shared Kubernetes infrastructure. Develop and maintain automation tools and scripts (Bash, Python) specifically focused on simplifying Kubernetes management tasks, such as provisioning users/secrets and monitoring cluster state. Knowledge, Skills & Abilities: 5 years of experience managing large-scale, high-availability database systems (PostgreSQL and MongoDB) in a SaaS environment. Deep Expertise in Kubernetes & Helm (3+ years required): Mandatory: Proven experience managing database deployments using Kubernetes and Helm deployments Strong Proficiency: Experience defining, troubleshooting, and maintaining Kubernetes resources such as StatefulSets, Pod Security Contexts (SCCs), NetworkPolicy, and custom RBAC for database Service Accounts. Deep knowledge of advanced PostgreSQL HA concepts (e.g., streaming replication, Repmgr/Patroni) and MongoDB sharding and replication, specifically how they are implemented and configured via Helm values. Experience managing database infrastructure on major cloud platforms (AWS, GCP, or Azure). Highly proficient in scripting (Bash/Python) and using GitOps principles to manage infrastructure and deployment pipelines. Strong grasp of database performance tuning, scaling concepts, and optimizing SQL/Aggregation queries. Container Orchestration Experience with production databases is mandatory. Nice to have: Hands on experience in using version control systems, configuration management tools and IaaC such as Terraform, CloudFormation Experience using database tools such as pgAdmin, Pgbench, Robo3t, Studio3t, MongoDB Ops Manager and Mongo mirror Experience with prometheus, cloudwatch and monitoring tools both within kubernetes and external cloud managed infrastructure The talent and dedication of our employees are at the core of Lumen Dynamics ’s journey to be an iconic company. We strive to attract and retain the best talent by providing competitive pay and benefits with our employees’ well-being at the core. Here’s what your benefits package may include depending on your location and local legal requirements: Medical, Dental & Vision Insurance, Flexible Time Off Program, Paid Holidays, Paid Parental Leave, Global Employee Assistance Program (EAP) and more! Lumen Dynamics Operating Principles: Wow Our Customers Set High Standards Be Better Than Yesterday Be Rigorous Assume Positive Intent Have the Tough Conversations Be Better Together Debate, Decide, Commit Deliver Results Overcommunicate Research shows that many wom