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Nicolas Alvarez

@nicolasalvarez1

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Senior backend engineer specializing in Golang, microservices, and scalable systems.

Argentina

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What I'm looking for

I seek senior backend roles building scalable microservices, emphasizing clean architecture, CI/CD, mentorship, and cloud-native systems.

I am a senior backend engineer with a decade of experience building and refactoring backend platforms, specializing in Golang, Java and microservices. I focus on clean code, solid architecture and continuous integration to deliver reliable systems.

At Svitla I contributed to Fuel Supply Chain solutions, migrating legacy Java systems to performant Golang services and began leading a seven-person team. My work improved response times and user experience while collaborating across a 15–20 person team of devs, QAs, product and managers.

Previously at RappiPay and CommonBond I led architectural overhauls and rewrites of monoliths into modern Golang platforms, improving code quality and performance. I have designed and implemented services from scratch, created REST APIs, and integrated Kotlin libraries where needed.

I bring hands-on experience across cloud platforms (AWS, GCP), containers and orchestration (Docker, Kubernetes), messaging (Kafka, NATS), and multiple databases (MySQL, Postgres, Mongo, Redis). I am proactive, a team player, and currently building and selling AI agents using n8n.

Experience

Work history, roles, and key accomplishments

Current

Senior Backend Engineer

Current

Svitla

Oct 2023 - Present (2 years 8 months)

Contributed to creating and maintaining fuel supply chain solutions; migrated legacy Java services to a new Golang version, improving response times and user experience; began leading a team of 7 engineers in Oct 2024.

Golang Java Redis AWS Docker Kafka MongoDB ELK Team Leadership

Senior Backend Engineer

RappiPay

Oct 2020 - Oct 2023 (3 years)

Led architectural overhaul and rewrote the backend v2 from monolithic Java to Golang, improving code quality and response times; developed REST APIs and integrations for fintech products.

Golang Java Kotlin Redis Postgres AWS Docker Kafka NATS

Senior Backend Engineer

Navent Financial Services

Jan 2020 - Oct 2022 (2 years 9 months)

Built financial web applications for real estate lending and rental guarantees from scratch and participated in migrating a monolith to microservices, contributing to design and implementation.

Java Kotlin Kafka MySQL GCP)Docker Kubernetes Redis GCP

Senior Backend Engineer

Navent

Jul 2017 - Jan 2020 (2 years 6 months)

Developed and maintained an API Gateway, led migration to GCP, and implemented a Backend-for-Frontend layer to improve mobile app UX and system performance.