Senior Software Engineer — Autonomous DB Optimisation

CAST AI Group; Województwo mazowieckie; Remote; PLN 319,000 - 441,000; Full time

Benefits offered by this job

Remote-first work environment

Equity options

Annual learning budget

Job summary

CAST AI Group is seeking a Senior Software Engineer for the Database Optimisation team. You will work across two core components: a high-performance Go-based Database Gateway and a Go-based Database Agent for workload analysis and recommendations.

You will help shape the architecture, validate recommendations and ensure correctness in production, collaborating with product and engineering to advance autonomous database administration at scale.

Qualifications

• Production services experience in Go.
• Deep knowledge of PostgreSQL or MySQL.
• Understanding of database clients, drivers and wire protocols.
• Strong debugging, optimisation and performance-tuning skills.
• Experience with benchmarking, query planning and index design.

Responsibilities

• Design, build and operate the Database Gateway.
• Develop high-performance services in Go and Rust.
• Work on database caching, rate limiting and gateway capabilities.
• Build the Database Agent’s recommendation engine.
• Develop systems for index suggestions, query analysis and query improvements.
• Work on cache invalidation and data consistency, ensuring correctness.

Skills

Go

Rust

PostgreSQL

MySQL

Kubernetes

Cloud platforms

CI/CD

Tools

Prometheus

Grafana

OpenTelemetry

GitLab CI

Argo CD

Job description

CAST AI Group is seeking a Senior Software Engineer for the Database Optimisation team. You will work across two core components: a high-performance Go-based Database Gateway and a Go-based Database Agent for workload analysis and recommendations.

You will help shape the architecture, validate recommendations and ensure correctness in production, collaborating with product and engineering to advance autonomous database administration at scale.