Open to opportunities

daniel gatis

@danielgatis

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Senior full-stack engineer specializing in microservices and technical leadership.

Brazil

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What I'm looking for

I seek senior engineering roles where I can lead technical initiatives, mentor teams, and build scalable microservices with strong CI/CD and observability practices.

I am a senior software engineer with over 15 years of experience building full‑stack web applications and microservices. I specialize in Ruby on Rails, Go, Python, Java, and React, and I focus on delivering scalable, high‑performance platforms.

Throughout my career I have led teams, mentored junior developers, and introduced agile and code‑quality practices that improved delivery and reliability. I have driven platform improvements and performance optimizations for products serving thousands of users.

My background spans digital banking, payments, scheduling, and SaaS products; I bring strong devops fluency (Docker, Kubernetes, CI/CD) and a pragmatic approach to architecture and team leadership.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

HousecallPro

Nov 2022 - Jan 2025 (2 years 2 months)

Developed and maintained full-stack Ruby on Rails and React applications, delivering platform improvements and performance optimizations for thousands of US users.

Ruby on Rails React Performance Optimization Full Stack PostgreSQL Docker CI CD Mentoring

Software Engineering Specialist

QuintoAndar

Mar 2022 - Nov 2022 (8 months)

Built Java/Spring Cloud and React applications, mentored junior developers, and introduced agile practices to improve delivery and team productivity.

Java Spring Cloud React PostgreSQL Agile Mentoring Microservices CI CD

Software Engineer

MercadoBitcoin

Jun 2020 - Mar 2022 (1 year 9 months)

Led development of a microservices-based digital banking platform and managed a team of 5 developers to deliver core services and integrations.

Golang Java Spring Cloud Microservices PostgreSQL React Team Leadership Kafka

Software Engineer

Youse Seguros

Jun 2018 - Jun 2020 (2 years)

Led development of a payments and billing system, implementing agile practices and code quality standards to improve reliability and delivery speed.

Ruby on Rails PostgreSQL Payments Billing Agile TDD CI CD

Software Engineer

BoaConsulta

Nov 2017 - Jun 2018 (7 months)

Developed a medical appointment scheduling platform using Ruby on Rails, PostgreSQL and MongoDB, improving scheduling reliability and user experience.

Ruby on Rails PostgreSQL MongoDB React AngularJS Web Applications API Development Performance

Software Engineer

AMMO Varejo

Jul 2017 - Nov 2017 (4 months)

Developed chatbot and recommendation systems using Python and machine learning libraries to enhance customer engagement and personalization.

Python Pandas Keras PostgreSQL React RabbitMQ Kafka Recommendation Systems

Software Engineer

C.E.S.A.R

May 2014 - Jul 2017 (3 years 2 months)

Built web applications and progressive web apps for clients including HP and Apple using Ruby on Rails, PHP (Symfony), and modern frontend frameworks.