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Daniel Fonseca ReisDR
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Daniel Fonseca Reis

@danielfonsecareis

I build scalable backend microservices for financial products using Go, AWS, Postgres, and DynamoDB.

Brazil
Message

What I'm looking for

I'm seeking opportunities to grow professionally while building innovative solutions, tackling complex challenges, and collaborating with teams to deliver outstanding results.

I'm building, maintaining, and evolving highly scalable microservices at Pismo, primarily using Go, AWS, Postgres, and DynamoDB.

Previously at Rain Instant Pay and Bexs Banco, I migrated DynamoDB data to Postgres, developed Go microservices, and built gRPC and REST services for instant-money exchanges in Brazil.

Across more than 13 years in software development, including seven years at CI&T, I've worked across backend systems, cloud, DevOps, technical refinement, code review, and team training. I enjoy coding, shaping solutions, helping teammates, and tackling complex challenges with international teams.

Experience

Work history, roles, and key accomplishments

Pismo logoPI
Current

Staff Software Engineer

Jul 2023 - Present (3 years 2 months)

Building, maintaining, and evolving highly scalable microservices primarily using Go, AWS, Postgres, and Dynamo.

Collaborating with cross-functional teams to ensure the delivery of robust and efficient solutions.

Contributing to the continuous improvement of development processes.

Rain Instant Pay logoRP

Senior Software Engineer

Jun 2021 - May 2023 (1 year 11 months)

Worked as a Backend Developer, initially migrating data from DynamoDB to Postgres using AWS Lambda (Python).

Developed new features and resolved legacy bugs in the company's microservices (Go).

Collaborated closely with front-end engineers to build administrative portals for clients to manage their businesses.

Utilized a technical stack that included Go, AWS, DynamoDB, Postgres, Kafka, Datadog,

Bexs Banco logoBB

Senior Software Engineer

Oct 2020 - Jun 2021 (8 months)

Worked as a Backend Engineer, building gRPC and REST microservices that integrate with BACEN (Brazil Central Bank) players, creating a product that enables Brazilians to make or receive instant money exchanges.

Utilized a technical stack including GCP (Google Cloud Platform), AWS, Go, Python, Postgres, and Firestore.

Collaborated in designing and implementing backend solutions to meet financial

CI&T logoCI

Senior Software Engineer

Jul 2013 - Sep 2020 (7 years 2 months)

Worked as a Software Engineer for 7 years, utilizing various technologies including .NET, Swift-iOS, Java, Google Cloud Platform (GCP), SQL Server, and Python.

Built and maintained numerous projects, ranging from an investment bank, construction sales system, schools management, to a credit card bank app.

In my last 3 years there, I was responsible for technical refinement, delivery, training, c

Netcom SA logoNS

Software Development Specialist

Aug 2011 - Jul 2013 (1 year 11 months)

Worked as a .NET Software Developer, contributing to the development of a doctor appointment scheduler for health insurance companies.

Built and maintained a small software application to manage support requests.

Collaborated with the team to ensure efficient and effective software solutions.

Education

Degrees, certifications, and relevant coursework

FC

Full Cycle

Pós-graduação Lato Sensu - MBA, Artificial Intelligence for software engineering

2025 - 2026

EB

ESAB - Escola Superior Aberta do Brasil

Engineer's degree, Computer Software Engineering

2008 - 2010

CH

Centro Universitário Metodista Izabela Hendrix

Bacharel, Computer/Information Technology Administration and Management

2000 - 2004

CH

Centro Universitário Metodista Izabela Hendrix

Bachelor's degree, Computer/Information Technology Administration and Management

2000 - 2004

Completed a Bachelor's degree in Computer/Information Technology Administration and Management.

CF

COTEMIG - Colégio e Faculdade

Associate's degree, Information Technology

1997 - 1999

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