Nilo Pereira Siquera

Senior Software Engineer

ManyPixels

Jan 2025 - Current (1 year 4 months)

• Migrated prisma v1 database schema to prisma v6 , utilized Pothos graphql builder to switch to code-first approach from SDL-first approach and enhance type-safety. • Upgrade stripe version for utilizing new features and documented the payment flows. • Implemented analytics events for all signup and purchase events. It improves visibility into the user's interaction with the app and the purchase flow. • Implemented a CI/CD pipline using Git which improved deployment efficiency and reduced downtime. • Led the team, providing technical guidance, Conducted code reviews, ensuring adherence to coding standards, quality, and performance optimization. Technologies: JavaScript, TypeScript, RabbitMQ, PostgreSQL, MySQL, Prisma, Pothos, React, A

F

Full-stack Engineer

Feb 2023 - Nov 2024 (1 year 10 months)

Developed LLM-powered onboarding assistants that auto-generate contextual documentation and guide new developers, reducing ramp-up time by 70% for 25+ client teams. ∙ Built a React/FastAPI dashboard to visualize real-time code health metrics, adopted by 50+ enterprises for executive reporting. ∙ Designed CNN-based anomaly detection to flag security vulnerabilities and code smells in PRs, cutting production incidents by 40%. ∙ Implemented MLflow pipelines to retrain models on client-specific codebases, improving issue detection accuracy by 25%. ∙ Migrated legacy systems to AWS microservices (Lambda, ECS), reducing infrastructure costs by 30% while handling 1K+ concurrent users. ∙ Automated CI/CD with GitHub Actions and Dockerized deplo

F

AI Founding Engineer

Fluently

May 2022 - Jan 2023 (9 months)

Built an AI-powered conversational English coach using transformer-based models, serving 10K+ learners. ∙ Implemented pronunciation and grammar correction with fine-tuned speech-to-text and NLP models. ∙ Designed real-time feedback loops leveraging GPT-style models, improving learner engagement by 35%. ∙ Architected a scalable backend on AWS with CI/CD pipelines for rapid iteration. ∙ Partnered with early adopters to refine AI feedback mechanisms and user experience.

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Fullstack Engineer

EfexPay

Sep 2020 - Nov 2022 (2 years 3 months)

• Migrated Spring-boot-based applications to Quarkus for highlighting performance benefits and resource efficiency, and optimized the application to embrace GraalVM idiomatics, developed a microservices ecosystem using Spring Boot and Quarkus. • Designed and optimized REST APIs using OpenAPI and Jersey for third-party banking integrations and internal auditing tools. • Built SPAs using Angular 15 and React.js, integrating real-time financial dashboards with NgRx state management. • Deployed containerized microservices on OpenShift and PCF using Docker and Kubernetes, ensuring compliance, scalability, and fault tolerance. • Enhanced performance with Redis & Elastic Cache, reducing DB load and improving transaction response by 35%. • In

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Java Backend Developer

Jan 2020 - Jun 2020 (6 months)

• Extracted a microservice from a monolithic architecture and implemented it in Node.js, reducing the complexity of the monolith and improving the scalability of the application. • Developed the project structure with Gradle, designed Oracle database schema, mapped database schema to Java in JPA annotation, and implemented encryption and decryption of the database password using Jasypt. • Created an automated pipeline with Github workflow, ensuring the execution of the test suite before the build process for a significant improvement in the quality of the team's deliveries. • Created a Grafana dashboard to observe and monitor the service. Technologies: Java, Jakarta EE, OOP, Gradle, REST APIs, Oracle, JavaScript, JUnit

Nilo Pereira Siquera

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