Valerio Cofano
Backend & Distributed Systems Engineer
Senior backend, distributed-systems, and system-design work, scoped and delivered remotely. High-concurrency, regulated, high-traffic environments are the norm.
Summary
I build the backend parts that can't be wrong: payments that can't double-charge, pipelines that can't drop events, services that hold under peak load. Over 15+ years I've designed high-concurrency services and event-driven pipelines, and I currently lead the backend team behind a marketplace serving millions of users. My background is full-stack, so I design across the whole system, not the backend alone. I reach for the durable answer over the clever one, and I take on the edge cases, failure modes, and migrations most people would rather avoid.
Core Skills
- System Design
- Distributed Systems
- Event-Driven Architecture
- High-Concurrency Systems
- Backend Engineering
- Technical Leadership
- Product Thinking
- CI/CD
- Observability
Tech Stack
Languages & Frameworks:Python, Go, PHP, Django, FastAPI, Laravel
Data & Messaging:PostgreSQL, MongoDB, MySQL, Redis, Kafka, Webhooks
Cloud & DevOps:Docker, CI/CD Pipelines, AWS, Google Cloud
Observability & Tooling:New Relic, Sentry, GitHub, GitLab
Experience
Camarasoft·Lead Software Engineer
Jul 2025 – Present · SwitzerlandCamarasoft·Senior Software Engineer
Jun 2024 – Jul 2025- Tech Lead of a backend team for a global, high-traffic marketplace (millions of users): architecture, code review, and the team’s performance reviews and onboarding.
- Delivered a high-concurrency slot-booking microservice (atomic locking, reserve / confirm / expire lifecycle) for premium placements, rolled out across multiple countries.
- Designed an event-driven payments pipeline (FastAPI + Kafka + dead-letter queues) that decoupled more than a dozen payment providers from the monolith and removed lost-payment risk.
- Architected a new authenticated user area: personalized UI on fully edge-cached pages plus a fail-open Go session microservice.
- Drove a pragmatic monolith modernization (typed DTOs, strict backend-for-frontend) and engineering standards across the codebase.
Medacta International·Software Engineer (R&D)
2023 – 2024 · Switzerland- Built internal platforms and APIs for clinical and surgical workflows, in a safety-critical, regulated domain.
- Contributed to technical discovery and design with R&D and clinical stakeholders; introduced CI/CD and quality gates.
- Pushed testing strategy and pragmatic design for long-term maintainability.
Exelero AG (now InMatch AG)·Technical Lead
2021 – 2023 · Switzerland · RemoteExelero AG (now InMatch AG)·Full Stack Developer
2020 – 2021- Tech lead for a multi-tenant SaaS startup: led a cross-functional team and owned architecture, CI/CD, and AWS/GCP deployments.
- Shipped and scaled two products on distinct stacks; owned security, tenant isolation, and cost decisions.
Don't Touch Sagl·Software Engineer
2019 – 2020 · Switzerland- Refactored and scaled a high-traffic platform (thousands of concurrent users) through backend and caching work, validated by load testing to roughly 10× the previous workload.
Harpa Italia·Senior Software Developer / Database Architect
2017 – 2019 · Italy- Designed large-scale IoT monitoring platforms used by public institutions nationwide (including an ENEA-commissioned census); owned backend, data modeling, and integrations.
Earlier Experience·Web Developer / Full-Stack Developer / Founder
2011 – 2017 · Italy- Built CRMs and web platforms; founded and delivered an event-management product end to end (backend, infrastructure, databases).
Education
Istituto Tecnico (Italian technical secondary school) · Diploma, Electronics and Telecommunications (Italy)
Languages
Italian · Native·English · Professional proficiency (C1/C2)
For more detail, view the full CV at valcof.com/cv