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Alexandre Pedrecal

@alexandrepedrecal

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Backend engineer specializing in scalable APIs, microservices, and fintech systems.

Brazil

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What I'm looking for

I seek backend or platform roles in fintech-forward teams where I can lead API and microservice design, improve security and scalability, and drive measurable cost and performance gains.

I am a backend engineer with 6+ years building scalable systems for tens of millions of users, focused on API development, microservices, and end-to-end cloud deployments. I specialize in Golang, TypeScript/Node.js, and system migrations that improve performance and reduce costs.

My work includes leading PHP-to-Golang migrations, designing identity and fraud-prevention services, and implementing security infrastructures (2FA, SMS OTP, WAF, rate limiting) with measurable results like faster response times, reduced infrastructure costs, and increased revenue contribution from partner integrations.

I thrive in high-growth fintech environments, driving cross-team technical leadership, observability, and reliable production operations while mentoring peers and delivering secure, performant systems.

Experience

Work history, roles, and key accomplishments

Software Engineer

Consumidor Positivo

Jan 2023 - Feb 2025 (2 years 1 month)

Optimized authentication for 30M+ users, increasing successful logins 30% and reducing auth latency; led PHP-to-Golang migration that improved response times 40% and cut infrastructure costs 30–40% while enabling R$150K–R$700K monthly revenue uplift from loan partner integrations.

Golang PostgreSQL Redis DynamoDB AWS Lambda JWT Terraform Microservices API Design

Software Engineer

IQ Fintech

Feb 2022 - Mar 2024 (2 years 1 month)

Built bank integration APIs and document validation flows for 10M+ users, led Golang migration of marketplace APIs to standardize partner integrations, and developed web-scraping and fraud-prevention middleware to automate payments and protect affiliate programs.

TypeScript Golang DynamoDB PostgreSQL Redis Web Scraping API Integration

Software Engineer

Red Ventures

May 2021 - Mar 2022 (10 months)

Contributed to loan processing systems serving 50M+ customers, refactored monolithic APIs to microservices to improve error handling and performance, and implemented AWS infrastructure and CI pipelines to ensure high availability for financial transactions.

Golang AWS EC2 RDS Cloudwatch MySQL Microservices CI CD New Relic

Software Engineer

Take Blip

May 2020 - May 2021 (1 year)

Built chatbot solutions handling thousands of daily WhatsApp interactions, implemented .NET Core backend wrappers for SOAP banking APIs with robust retries and error handling, and mentored junior developers on platform best practices.

.NET Core Azure WhatsApp Business API JavaScript Backend Development Integration

Intern Software Developer

CEPEDI

Dec 2016 - Dec 2018 (2 years)

Led Git adoption and CI/CD implementation with Jenkins and SonarQube, and developed a motherboard testing platform using Java and Spring Boot integrated with Arduino to support manufacturing compliance.