Nicolás Osorio
Buenos Aires, Autonomous City of Buenos Aires, Argentina
Summary
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SeniorNicolás Osorio is a Freelance Full Stack Developer and Technical Lead with nine years of experience building scalable, microservices-based systems across insurance, finance, and e-commerce. He has driven measurable business outcomes—most notably orchestrating legacy platform integrations that produced a 200% sales increase—while architecting secure IAM solutions and custom authentication flows for enterprise clients. Comfortable across Java (Spring Boot), Node.js, Scala, and React, he blends hands-on coding with product ownership, CI/CD automation, and team mentorship. An award-winning developer (Diamond Prize, Redis Hackathon 2021), he favors pragmatic, event-driven architectures and has deep operational familiarity with Redis, Kafka, Docker, and AWS. Based in Barcelona with roots in Argentina, he pairs consulting-level client collaboration with a track record of modernizing legacy apps and improving developer practices.
9 years of coding experience
Github Skills (97)
saml10
vertex-ai10
llmops10
rust10
load-balancing10
nvidia10
gateway10
mern10
azure-openai10
access-management10
keycloak10
langchain10
llm10
openai10
logging10
Programming languages (14)
Github contributions (5)
osorionicolas/upptime
Feb 2022 - Apr 2023
Contributions:1315 pushes, 2 branches, 11 comments in 1 year 2 months
osorionicolas/knowledge
Oct 2020 - Oct 2025
Contributions:54 pushes, 1 branch in 5 years 1 month
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