Franco Sosa · Senior Software Engineer · Buenos Aires, Argentina
Building today's systems
that solve the problems
of tomorrow.
Senior full-stack engineer specialized in .NET, React and Azure. Tech lead on banking, payments and insurance platforms for Coelsa, Banco Supervielle, Banco Galicia and more — from Buenos Aires to production around the world.
About
Engineer first,
stack-agnostic by trade.
I'm a Senior Software Engineer based in Buenos Aires with 12+ years of experience building scalable, high-performance applications — most of them in banking, payments and insurance. I've grown from junior developer to tech lead, managing teams, owning production rollouts and mentoring other developers along the way. I care about clean architecture, continuous learning, and shipping software that holds up in production.
- Location
- Buenos Aires, AR
- Experience
- 12+ years
- Current role
- Sr .NET Dev @ Dynamic Devs
- Core stack
- .NET · React · Azure
- Domain
- Banking & fintech
- Languages
- Spanish · English (C1)
Work ledger
From junior to tech lead.
Every entry shipped.
A running record of the companies, platforms and teams I've worked with since 2013 — most recent first.
- 2023 — today Senior .NET Developer Dynamic Devs Modernizing internal systems for Vida Security: driving the .NET 6 → .NET 8 migration, refactoring critical code for compatibility, performance and lower resource consumption.
- 2023 — 2024 Adjunct Tutor — Node.js Backend Coderhouse Adjunct tutor for a backend programming course: leading classes, answering student questions and grading final challenges and projects.
- 2022 — 2023 Senior Full-Stack Developer Trick Studios Built new features and improvements for a gaming project, developing the game's back office with .NET 6 and Blazor.
- 2021 — 2022 Senior Development Analyst Coelsa Led evolutionary development of financial products on the Debin team at Argentina's payments clearing house, driving systems analysis and mentoring other developers.
- 2019 — 2020 Tech Lead Banco Supervielle Led the insurance team: managed the technical team's delivery, owned production rollouts and worked with architects to define the right solutions for the bank.
- 2016 — 2018 Tech Lead Accenture · Banco Galicia Evolutionary development of multiple banking products on MVC architecture in Scrum teams: managed developer workloads, supervised production releases, QA and technical interviews.
- 2015 — 2016 Ssr Full-Stack Developer Arroyo Consulting Helped develop and modernize a digital banking platform, implementing decoupled .NET microservices that improved performance and scalability.
- 2014 — today Software Development & Consulting Freelance Ongoing delivery for multiple clients: Rocking (AI-powered digital platform), Kognito (serverless SMS on AWS), CFO Tech for Andreani (logistics & finance), SYS BOX (construction purchasing) and TransCore (US web systems on Azure).
- 2013 — 2014 Jr Full-Stack Developer EYNES EMPIS SRL Developed and maintained an Odoo CRM for a construction company, building custom invoicing applications and owning testing and deployments.
Toolbox
The stack adapts.
The craft doesn't.
Back-end
- C#
- .NET
- Node.js
- Express
- Python
- Go
Front-end
- React (JS/TS)
- Angular
- Blazor
- TypeScript
- HTML
- CSS / SASS
Databases
- SQL Server
- PostgreSQL
- MongoDB
- Redis
- DynamoDB
- Oracle
Cloud & DevOps
- Azure
- AWS
- GitHub Actions
- Docker
- Git
- Scrum
Certifications
- C# — IT Education
- JavaScript — IT Education
- React — IT Education
- SQL Server 70-461 pre-cert — Microsoft
- Web Development — UTN
Education
- Systems Engineering — UAI (in progress)
- Superior Technician in IT — ITI San Judas Tadeo
Contact