Senior Software Engineer (9+ years) focused on backend systems, distributed architectures, and cloud-native products. I lead teams and design, build, and ship services across JS/TS (Node.js/NestJS/Express), Python/Java, React/NextJS, and data stores like Postgres, MongoDB, and DynamoDB. Deep AWS (6+ years: VPC, ECS/Fargate, Lambda, RDS, SQS/SNS, Kinesis, Cognito, API GW, CFN/CDK/Terraform) with CI/CD via GitHub Actions/GitLab CI.Currently pursuing an MSc in Financial Engineering at WorldQuant University, applying engineering thinking to finance (bond pricing, discounting, credit risk, shorting) and building tools to learn in public. I recently built and open-sourced a local web learning portal for the program: clean reading experience, interactive quiz mode, and zero-dependency setup (npx serve -p 8000).I thrive in collaborative teams, practice TDD/BDD, and focus on clear architecture, fast feedback loops, and pragmatic delivery. Open to connecting with engineers and finance folks who like building, learning, and sharing.