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Zaven Petrosyan

@zavenpetrosyan

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Senior Backend Engineer with expertise in scalable backend solutions.

Armenia

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What I'm looking for

I am looking for a role that challenges me and allows for continuous learning, collaboration, and innovation in backend development.

I am a Senior Backend Engineer with 7 years of experience in building scalable, high-performance backend solutions using technologies like Node.js, TypeScript, and AWS. My journey has been marked by a proven ability to optimize infrastructure, reduce costs, and implement microservices architectures that effectively scale. I possess strong problem-solving skills and a passion for creating secure, efficient systems.

Throughout my career, I have designed and enhanced applications, focusing on improving code quality and optimizing system performance. My experience includes leading development teams, integrating complex banking and authentication systems, and implementing advanced features that enhance user experience. I take pride in my ability to leverage cloud services and infrastructure as code to maintain high efficiency and scalability.

As I continue to grow in my career, I am eager to tackle new challenges and contribute to innovative projects that push the boundaries of technology. I thrive in collaborative environments where I can share my knowledge and learn from others, always striving for excellence in every aspect of my work.

Experience

Work history, roles, and key accomplishments

Senior Backend Engineer

Dealcode

Apr 2023 - Jan 2025 (1 year 9 months)

Designed and enhanced a new application, expanding functionality and making key architectural decisions to improve code quality and optimize system performance. Utilized JavaScript and Nest.js for backend development, leveraging various AWS Lambda services for scalable serverless architecture and managing data using MySQL hosted on Amazon RDS. Maintained high infrastructure efficiency by implement

JavaScript Nest AWS Lambda MySQL Amazon RDS Terraform NPM Microservices Systems Architecture API Integration

Lead Backend Engineer

Decript

Aug 2021 - Mar 2023 (1 year 7 months)

Led the development of new system features, focusing on debugging, testing, and designing efficient, maintainable object-oriented code. Played a key role in integrating banking and authentication systems, developing core functionality with JavaScript, Node.js, and MongoDB. Implemented a Portfolio feature, enhanced KYC authentication, and contributed to critical architectural decisions.

JavaScript Node MongoDB Object Oriented Programming Debugging System Design API Integration KYC Agile Methodologies

Senior Full-stack Engineer

Intellias

Feb 2022 - Oct 2022 (8 months)

Enhanced and integrated new features, fixed critical bugs, and thoroughly implemented unit tests to improve system stability and reliability. Developed efficient and scalable solutions using Node.js, TypeScript, and AWS Serverless, leveraging DynamoDB, AWS SQS, AWS S3, and Jest for testing. Contributed to front-end development using React.js and designed automated database backup processes for Dyn

Node TypeScript AWS Serverless DynamoDB SQS AWS S3 Jest React Unit Testing

Back-end developer

All.me/kindda

Dec 2019 - Apr 2021 (1 year 4 months)

Utilized Node.js and TypeScript with the Moleculer.js framework for backend development, employing MongoDB as the primary database, Redis for caching, and Nats as the communication protocol. Leveraged Docker and Kubernetes for efficient containerization and microservices management. Designed and developed a microservice for managing posts, enabling efficient content processing and retrieval, and i

Node TypeScript Moleculer MongoDB Redis NATS Docker Kubernetes Microservices Kafka Elasticsearch gRPC AWS

Node.js developer

Acn llc

May 2018 - Dec 2019 (1 year 7 months)

Built a multi-level authorization service, implementing role-based access control (RBAC) and OAuth2 authentication, ensuring secure and scalable user management. Conducted code reviews for team members' pull requests and actively participated in daily Agile meetings to ensure streamlined project delivery. Leveraged JavaScript, TypeScript, and Node.js for backend development, integrating PostgreSQL

Node JavaScript TypeScript RBAC OAUTH2 PostgreSQL Redis RabbitMQ Code Review Agile Methodologies

Education

Degrees, certifications, and relevant coursework

National Polytechnic University of Armenia

Bachelor’s Degree, Mechanical Engineering

Studied Mechanical Engineering, gaining foundational knowledge in engineering principles and problem-solving. Completed a comprehensive curriculum focusing on the design, analysis, and manufacturing of mechanical systems.