Simion Agavriloaei

Tech Lead | Staff Product Engineer @ DontPayFull

• Architected and built fault-tolerant distributed platforms, designing the full stack from high-throughput streaming pipelines to AI/LLM integrations (OpenAI, Gemini, Anthropic) in Python and Go.
• Owned end-to-end delivery of the company's AI engineering strategy: researched approaches, wrote technical specs, prototyped solutions, and shipped GenAI workflows that cut AI feature delivery time from weeks to days.
• Created high-leverage internal abstractions and tooling — declarative pipeline configs, reusable crawling frameworks, and a self-hosted Kubernetes (k3s) platform on bare-metal — that slashed infrastructure costs by 50% and gave every engineer more autonomy to ship independently.
• Reduced infrastructure incidents by 70% and eliminated major database downtime by personally redesigning MySQL (HA) replication, failover strategies, and end-to-end observability with Grafana, OpenTracing, and Fluentd.
• Improved organization-wide delivery speed by 80% by overhauling CI/CD pipelines, introducing a high-velocity "ship / show / ask" workflow, and removing complex technical blockers — enabling the team to deploy with confidence multiple times per day.
• Drove technical vision in direct partnership with the CEO and CTO, acting as the primary escalation point while elevating engineering quality through rigorous code reviews, architectural guidance, and direct technical mentorship.

Lead Full Stack Developer @ Pentalog

• Owned the full-stack redesign of SkillValue's legacy application into a scalable Angular & Django PWA — driving product decisions, system architecture, and frontend/backend implementation as the primary technical decision-maker.
• Led backend, frontend, and DevOps operations across ~30 Linux servers, introducing Docker containers and Celery/RabbitMQ distributed task pipelines that significantly improved reliability.
• Established engineering best practices including strict TDD (95%+ automated test coverage), cross-stack architectural standards, and rigorous code reviews that improved delivery predictability.

Software Developer @ DontPayFull SRL

• Engineered a high-throughput distributed task infrastructure (Celery/RabbitMQ) processing 15M+ daily tasks, building core data collection crawlers with robust proxy rotation and fault tolerance from scratch.
• Drastically reduced system response times through rigorous profiling and database architecture optimization across Percona/MySQL and MongoDB.
• Built real-time WebSocket-based reporting systems and streamlined release cycles by automating deployments with Docker.

Software Developer @ JobRight (Project-based)

• Delivered end-to-end full-stack development for a communication platform using Django and JavaScript, designing backend services, automated email pipelines, and high-performance SQL procedures.

Software Developer @ Assist Software

• Built production-grade applications across diverse domains (CRM, Healthcare, Social) using Python/Django, PHP, and AngularJS, integrating complex third-party APIs (Stripe, PayPal, Amazon services).
• Improved system stability through deep code profiling, architectural refactoring, and rigorous testing. Also served as Scrum Master, facilitating Agile ceremonies and removing blockers for the team.

B.Sc. Computer Science

Universitatea Ștefan cel Mare, Suceava, Romania