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Agustin Masuelli

@agustinmasuelli

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Lead software engineer driving scalable products, team growth, and measurable delivery improvements.

Argentina

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What I'm looking for

I seek roles where I can scale engineering teams, define architecture and processes, mentor engineers, and deliver high-impact, measurable product outcomes.

I am a proactive lead software engineer with deep experience building engineering organizations, shipping product-critical features, and aligning technical execution with strategic business goals. I have guided startups from seed stage through Series A while contributing hands-on to architecture and implementation.

At Sanlo Technologies I built the engineering org from scratch, instituted incident management and DORA/Agile/code-quality metrics, and helped deliver lending and payments platforms that processed high-volume transactions and originations. I have a track record of improving uptime, reducing error rates, and increasing team velocity through tooling, processes, and mentorship.

I bring full‑stack fluency across Java, JavaScript/TypeScript, Python and modern frameworks, plus cloud and DevOps experience on AWS and GCP. I thrive in fast-paced environments where I can scale teams, define architecture, and accelerate delivery while mentoring engineers.

Experience

Work history, roles, and key accomplishments

Current

Founding Engineer & Lead

Current

Sanlo Technologies

Jan 2021 - Present (5 years 5 months)

Built the engineering organization from scratch, enabling daily deployments and scaling through Series A; designed incident management achieving 99% uptime and implemented DORA/Agile metrics that reduced error rate 30% and boosted velocity 25%. Led development of lending product (> $100M originations) and Payment/eCommerce platform (> $1M transactions, 10,000 DAU).

Leadership Incident Management AWS CI CD Java DORA Metrics Payments

Lead Engineer

Sirius Software

Jan 2019 - Jan 2021 (2 years)

Led cross-functional squads across HR, Payments and SalesOS, managing 25+ engineers, delivering weekly major updates and defining team-scaling models that grew headcount 200%; owned architecture, frameworks and tooling decisions while mentoring engineers.

Team Leadership Architecture Scalability Java JavaScript Mentoring Cross Functional Collaboration Agile

Full Stack Engineer

Sirius Software

Jan 2018 - Jan 2019 (1 year)

Developed backend and frontend products across diverse architectures and cloud providers, delivering full-stack features using Java, Node.js, Python and modern frameworks to support product teams.