Senior Software Engineer – Database Optimization

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🔥 0 minutes ago

🇧🇬 Bulgaria – Remote

💵 €6.5k - €9k / month

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

👻 Ghost score 0%

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Cast AI

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2019

☁️ SaaS

🤖 Artificial Intelligence

🤝 B2B

SaaS • Artificial Intelligence • B2B

Cast AI is a SaaS platform that automates Kubernetes application performance, infrastructure, and cost optimization for cloud-native teams. It connects to EKS/AKS/GKE and on-prem clusters with no code changes, uses predictive models and runtime signals to rightsize pods, scale nodes, optimize GPUs and Spot instances, and run approved self-healing runbooks to maintain reliability and reduce cloud spend. Cast AI targets platform, SRE, and FinOps teams and supports AI/LLM workloads, GPU optimization, and real-time workload placement and cost intelligence.

📋 Description

• Design, build and operate the Database Gateway • Develop high-performance services in Go and Rust • Work on database caching, rate limiting and other 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, where correctness is critical • Create methods for safely validating database recommendations before they are applied • Debug complex production issues across the gateway, agent and underlying database systems • Analyse database performance, query behaviour and workload patterns • Collaborate with product and engineering teams on problems without established solutions • Contribute to product direction, technical decisions and the engineering roadmap • Help shape the next generation of automated database administration

🎯 Requirements

• Strong software engineering fundamentals, including clean abstractions and maintainable code • Professional experience building production services in Go • In-depth knowledge of PostgreSQL or MySQL • Understanding of how database clients, drivers and wire protocols work • Strong debugging, optimisation and performance-tuning skills • Experience with query profiling, index design and database tuning beyond ORM usage • Experience taking a complex technical project from design through to production • Strong written and spoken English • A proactive and adaptable approach to working in a fast-moving environment • Comfort working with ambiguity and contributing to technical direction • Rust experience, particularly with high-performance network services or proxies • Experience building or extending database proxies, gateways or poolers • Experience designing cache invalidation strategies at scale • Experience with index recommendation, query-plan analysis or query optimisation tooling • Experience validating technical changes through workload replay, shadow traffic or benchmarking • Production experience with Prometheus, Grafana or OpenTelemetry • Experience working with Kubernetes and cloud infrastructure • CAST AI does not provide visa sponsorship or work permits for this position

🏖️ Benefits

• Remote-first work environment • Equity options • Global team of cloud and infrastructure specialists • Fast feedback and short delivery cycles, with many feature projects completed within one to four weeks • 10% of working time for personal projects or professional development • Annual learning budget, including conferences and courses • Annual hackathon • Team-building budget and company events • Equipment budget • Additional days off

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