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Benjamin Zhang

@benjaminzhang

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Senior Full Stack Engineer with expertise in scalable web applications.

Finland

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What I'm looking for

I am looking for a role that values innovation, collaboration, and continuous learning, where I can contribute to impactful projects and mentor others.

I am a Senior Full Stack Engineer with over 10 years of experience in building scalable web applications, particularly in startup environments. My expertise lies in integrating AI and machine learning to optimize processes and enhance user experiences. I have a proven track record of delivering projects from inception to completion, utilizing modern frameworks and cloud technologies.

Throughout my career, I have developed a strong collaborative spirit, mentoring junior developers and fostering a team-oriented environment. My recent projects include building a stock trading and investment app and an AI-powered healthcare SaaS platform, both of which required innovative solutions and a deep understanding of both frontend and backend technologies. I am passionate about solving complex problems and continuously improving my skills to stay ahead in the fast-paced tech landscape.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Engineer

CodeBright

Mar 2023 - May 2025 (2 years 2 months)

Developed a Brokerage: Stock Trading and Investment App, integrating third-party APIs like Alpaca and Kraken for seamless financial data exchange. Utilized Next.js and React for the web application's UI and admin dashboard, with Node.js/Nest.js for core API functionality.

Next.js React Node Nest TypeScript AWS Lambda API Gateway S3 SNS SQS Cloudwatch Cognito Step Functions Stripe Kafka Redash Grafana

Senior Full Stack Engineer

Innovify

Feb 2020 - Feb 2023 (3 years)

Built an AI-powered SaaS healthcare project using Python, Flask, AWS, and PostgreSQL, enabling accurate treatment plan generation. Implemented an AI-driven summarizing process with OpenAI Chat GPT-3 for detailed treatment plans.

Python Flask AWS PostgreSQL GPT 3 ReactJS Nginx Gunicorn Celery RabbitMQ Redis

Full Stack Engineer

Ncrypted Technologies

Jun 2017 - Jan 2020 (2 years 7 months)

Developed a microservice-based Online Banking SaaS Platform using NestJS, PostgreSQL, and AWS Cloud Platform. Built a complex admin portal with NextJS, TailwindCSS, D3.JS, and GraphQL for real-time analytic data.

NestJS PostgreSQL AWS Lambda ECS RDS SNS SQS DynamoDB Batch Next.js TailwindCSS D3.Js GraphQL Python Kinesis Kafka Redis IndexedDB CI CD GitHub Actions

Full Stack Developer

Fraktio

Jul 2014 - May 2017 (2 years 10 months)

Collaborated with cross-functional teams in product meetings, ensuring adherence to technical specifications and deadlines in Scrum and Sprints. Participated in the migration from RESTful APIs to GraphQL API, improving data fetching flexibility and frontend performance.

React styled components Jest Cypress RESTful APIs GraphQL APIs Scrum Agile Unit Testing Integration Testing

Education

Degrees, certifications, and relevant coursework

University of Helsinki

Bachelor's degree, Computer Science

Completed a comprehensive curriculum in Computer Science, gaining foundational knowledge and practical skills in various aspects of the field. Focused on core computer science principles and their applications.