Barcelona, Spain

Hello, I am

Brian Toro

< Senior Backend Developer />

Building scalable systems & high-performance APIs

Get in touch

brian@portfolio

$ whoami

Senior Backend Developer

$ cat skills.json

{
  "languages": ["Node.js", "Go", "TS"],
  "experience": "6 years",
  "focus": "Fintech & Banking"
}

$ _

<about>

About Me

I am a Backend Developer with 6 years of experience, specialized in Node.js, Golang and scalability of high concurrency systems. My experience is focused on StartUps, mainly in the financial sector (Fintech), developing solutions for transaction processors and banking services.

I have a product-centric approach, always looking to improve the end-user experience through technical innovation, always trying to have an impact on better metrics for the product.

6+ Years of Experience

4M+ Euros Transacted

99.7% Uptime

3 Countries

</about>

Work Experience

Senior Software Engineer

Unnax • Banking as a Service Team

Present March 2024 - Present Barcelona, Spain

[*] Develop the integration with the SICT scheme for the SEPA environment allowing to receive and issue instant transfers directly from our customers' accounts.
[*] Lead an optimization process on Microservices written in Go and using Kafka to reduce the processing time of immediate transfers from ≈16s to ≈2s.
[*] Lead the End to End Test project for the company's API using Typescript and Playwright.

GoKafkaSEPATypescriptPlaywright

Senior Software Backend Engineer

Treinta (StartUp) • Fintech Team

Jul 2021 - March 2024 Bogota, Colombia

[*] As a backend engineer I was in the fintech team in charge of building products for small and medium sized companies all over Latin America that would help them to digitize, with products such as payment points, accounting management and others.
[*] I was leading the design and implementation of an event-driven, real-time transaction system using Nodejs, Go and AWS resources such as SNS, SQS to disperse money to merchants with a payment point, this system has transacted over 4 million euros with an uptime of 99.7%.

Node.jsGoAWSSNSSQSPostgreSQL

FullStack Software Engineer

Kuepa EduTech (StartUp) • Payments Team

August 2020 - August 2021 Bogota, Colombia

[*] I developed mainly Backend Developer functions designing and implementing Rest APIs modules with Node.js, Typescript and MongoDB as well as some Frontend functions using React.js and Redux.
[*] I led the implementation of a CI/CD pipeline (AWS) together with the planning and implementation of the test environment, using technologies such as Docker and Jest for unit and end to end testing.

Node.jsTypeScriptMongoDBReact.jsDockerJest

</experience>

Technologies & Skills

Languages

Node.jsGolangTypeScriptJavaScript

Technologies

PostgreSQLMongoDBAWSKafkaRedisDocker

Frameworks & Tools

NestJSExpressFastifyGinFiber

// Other technologies

MySQLClickHouseDynamoDBSQSSNSRabbitMQGitKnexTypeORMGORMNext.jsReact.jsPlaywrightJestScrumAgileCI/CD

</skills>

Education & Certifications

B.Sc. Computer Science

Universidad Internacional de la Rioja

2021 - 2023

School of JavaScript, Engineering and Software

Platzi

2019 - 2020

Computer Programming Technician

I.E INEM José Felix de Restrepo

2016 - 2018

Languages

Spanish (Native)

English (Advanced)

</education>