Andrey K.
Mid-Level Full Stack Engineer
Open to offersNew to PlatformAbout
A. T. is a seasoned Full Stack Engineer specializing in the development of scalable cloud infrastructure and web applications for clients in both Brazil and the U.S. He led transformative projects such as migrating a legacy IAM platform to a secure v2 architecture integrated with Keycloak, and transitioning a multi-repository system to a monorepo structure. His expertise includes implementing software architecture, optimizing performance, and maintaining systems using Clean Architecture and Domain-Driven Design (DDD) principles. His technical arsenal encompasses a range of languages and frameworks, including TypeScript, Node.js, React, and GraphQL. Additionally, A. has an adept handling of MongoDB and SQL databases, and excels in DevOps and cloud solutions with AWS, Docker, Kubernetes, and Linux. In his role at CIC Controle, he enhanced security and user compliance by leading the transition of the IAM v1 API to a secure v2 solution, demonstrating his capability in evolving technical landscapes to meet modern demands. A. holds a Bachelor's degree in Mechanical Engineering from Universidade Estadual Paulista Júlio de Mesquita Filho.
Experience
Back End Developer
CIC Controle · 2025 — 2026Migrated a legacy IAM v1 API to a secure v2 platform, integrating audit-compliant user action tracking and customized Keycloak authentication flows, while enhancing observability with Pino/Grafana. Developed automated tests with near 100% coverage in in-memory MongoDB environments to ensure reliability. Streamlined workflows through AI agents for test generation and multi-repository contract synchronization, automating engineering tasks. Conducted extensive refactoring, upgraded dependencies, performed schema-versioned migrations, and implemented additional data protection layers using Mongoose.Full Stack Developer
Shaw and Partners · 2023 — 2024Designed MongoDB Atlas search strategies for real estate platforms, focusing on weighted ranking and advanced filtering to enhance search relevance. Employed denormalization techniques in high-traffic applications to simplify the database structure and boost query performance. Transitioned from a multi-repository to a monorepo architecture, modernizing the frontend development process by migrating from Webpack to Vite and improving build times significantly. Developed a scalable PDF generation microservice utilizing AWS services, and managed CI/CD pipelines across various environments to enhance deployment processes. Created a synchronized React map interface for mobile devices, optimizing rendering and component caching to improve user interaction.Back End Developer
Coodesh · 2021 — 2022Developed automated unit and integration tests using SuperTest, enhancing system testability. Created algorithms to support email delivery workflows and user notifications, and contributed to the migration of an internal legacy API to a Clean Architecture structure with NestJS.Back End Developer
Becomex · 2020 — 2021Maintained and developed internal enterprise applications using .NET, Oracle, and SQL Server, applying DDD principles. Established automated unit tests with xUnit and implemented behavioral/UI tests using Robot Framework and Python.
Skills & Expertise
Education
- Bachelor's degree in Engenharia MecânicaUniversidade Estadual Paulista Júlio de Mesquita Filho · 2011 — 2018
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