Valerio Cofano

• Tech Lead of a backend team building a global, high-traffic marketplace serving millions of users: I own architecture, code review, and sprint planning, and I write the team’s performance reviews and run onboarding for new members.
• Led the end-to-end delivery of a high-concurrency slot-booking microservice for premium placements: atomic locking with a reserve, confirm-on-payment, or auto-expire lifecycle, and safe concurrent selection, rolled out market by market across multiple countries.
• Designed an event-driven payments pipeline that decoupled more than a dozen payment providers from the monolith: a thin FastAPI service acknowledges each webhook in under 200ms onto Kafka, with a separate consumer, dead-letter queues, and replay, so a slow provider can no longer turn into a lost payment.
• Conceived and led a new authenticated user area, including the architecture for a personalized UI on fully edge-cached pages and a small Go session microservice designed fail-open to avoid mass logout.
• Defined and drove a pragmatic modernization of a “leaky monolith”: standardized API contracts on typed DTOs behind a strict backend-for-frontend boundary, chosen over full DDD to avoid large structural overhead.
• Owned a regulatory compliance and content-safety initiative: identity and content verification across multiple countries and automated media moderation with third-party verification services.
• Drove engineering standards across the codebase: testing and coverage, consistent formatting and tooling, and observability for critical services.
• Promoted from Senior to Lead Software Engineer; coordinate deployments and technical direction with the other leads and present trade-offs to stakeholders.

Promoted from Senior Software Engineer to Lead Software Engineer in Jul 2025.

• Built and improved internal platforms and APIs for clinical and surgical workflows, where safety and traceability set the bar as much as features.
• Contributed to technical discovery and design for new features, turning constraints from R&D and clinical stakeholders into workable decisions.
• Introduced CI/CD pipelines and quality gates, making releases more reliable and less manual.
• Pushed a real testing strategy and simple, maintainable design, which matters most in a regulated domain.

• Tech lead at a product startup building a multi-tenant SaaS suite for recruitment, employee engagement, and performance. I led a cross-functional team and worked directly with the CEO to keep the technical roadmap tied to the business.
• Owned system architecture, deployment, and CI/CD across AWS and Google Cloud, with an eye on reliability and cost.
• Shipped and scaled two products on distinct stacks (Laravel, React/TypeScript, GraphQL and REST) while holding one engineering standard across both.
• Made the calls on security, tenant isolation, performance, and observability in production.

Promoted from Full Stack Developer to Technical Lead in 2021.

• Refactored and scaled a high-traffic review platform serving thousands of concurrent users, focused on backend performance and caching as growth accelerated.
• Validated the changes with simulation and load testing, taking the platform to roughly 10× its previous workload.
• Ran a large data migration off a legacy platform with no loss of continuity.

• Designed and built a bespoke IoT monitoring platform, including a nationwide public-lighting census commissioned by ENEA, the Italian public energy agency.
• Owned backend services, data modeling, and device integrations, handling high-volume sensor data across multiple client deployments.
• Ran internal MySQL training and set backend practices for the team.

• Built and ran CRMs and business web apps across several industries, taking on more end-to-end ownership each year.
• Founded and led an event-management platform, owning its backend, infrastructure, and databases.
• Companies: VincixGroup (Getinet), StudioProfit, Serfin97, Beat N Beat (founder).