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I am MOHAMED SAAJID, a Software Engineer specializing in the MERN stack with 4 years of experience. I build scalable, high-performance applications using React.js, Node.js, Express.js, and MongoDB, focusing on clean API contracts, SOLID principles, and idempotent designs. I work with microservices and event-driven architectures (RabbitMQ, AWS S3, Athena) on cloud-native platforms (AWS, Docker, Nomad). I’m a proponent of test-driven development (TDD/BDD), maintainable production systems, and I’m currently pursuing the AWS Solutions Architect – Associate certification to deepen cloud infrastructure skills.…I am MOHAMED SAAJID, a Software Engineer specializing in the MERN stack with 4 years of experience. I build scalable, high-performance applications using React.js, Node.js, Express.js, and MongoDB, focusing on clean API contracts, SOLID principles, and idempotent designs. I work with microservices and event-driven architectures (RabbitMQ, AWS S3, Athena) on cloud-native platforms (AWS, Docker, Nomad). I’m a proponent of test-driven development (TDD/BDD), maintainable production systems, and I’m currently pursuing the AWS Solutions Architect – Associate certification to deepen cloud infrastructure skills.

MOHAMED SAAJID

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I am MOHAMED SAAJID, a Software Engineer specializing in the MERN stack with 4 years of experience. I build scalable, high-performance applications using React.js, Node.js, Express.js, and MongoDB, focusing on clean API contracts, SOLID principles, and idempotent designs. I work with microservices and event-driven architectures (RabbitMQ, AWS S3, Athena) on cloud-native platforms (AWS, Docker, Nomad). I’m a proponent of test-driven development (TDD/BDD), maintainable production systems, and I’m currently pursuing the AWS Solutions Architect – Associate certification to deepen cloud infrastructure skills.…I am MOHAMED SAAJID, a Software Engineer specializing in the MERN stack with 4 years of experience. I build scalable, high-performance applications using React.js, Node.js, Express.js, and MongoDB, focusing on clean API contracts, SOLID principles, and idempotent designs. I work with microservices and event-driven architectures (RabbitMQ, AWS S3, Athena) on cloud-native platforms (AWS, Docker, Nomad). I’m a proponent of test-driven development (TDD/BDD), maintainable production systems, and I’m currently pursuing the AWS Solutions Architect – Associate certification to deepen cloud infrastructure skills.

Available to hire

I am MOHAMED SAAJID, a Software Engineer specializing in the MERN stack with 4 years of experience. I build scalable, high-performance applications using React.js, Node.js, Express.js, and MongoDB, focusing on clean API contracts, SOLID principles, and idempotent designs.

I work with microservices and event-driven architectures (RabbitMQ, AWS S3, Athena) on cloud-native platforms (AWS, Docker, Nomad). I’m a proponent of test-driven development (TDD/BDD), maintainable production systems, and I’m currently pursuing the AWS Solutions Architect – Associate certification to deepen cloud infrastructure skills.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Javanese

Advanced

Work Experience

Software Engineer at Gapstars (Harver)

January 1, 2022 - Present

Developed and maintained front-end features in React.js and TypeScript (consent event logging, tab-switch tracking, secure uploads, CSV validation) and updated shared UI components with Storybook, ensuring design consistency and faster delivery across teams for WCAG accessibility, reducing accessibility-related issues. Implemented multi-language support using react-intl and Lokalise, enabling candidate assessments in 13+ languages. Designed and optimized Node.js microservices and Python data pipelines following SOLID principles and idempotent API design, achieving 99.9% uptime for assessment workflows. Engineered MongoDB schemas and PostgreSQL queries to manage recruiter and candidate data, improving query performance by 45%. Architected a RabbitMQ-based event-driven pipeline (50K+ messages/day) with boto3, pandas, and PyArrow to batch candidate data into AWS S3 (Parquet) for Athena analysis, improving data availability and scalability. Improved pipeline fault tolerance with retries, t

Software Engineer at Gapstars (Harver)

January 1, 2022 - Present

Led front-end development in React/TypeScript (consent logging, tab-switch tracking, secure uploads, CSV validation) and modernized UI with Storybook for cross-team reuse and WCAG accessibility improvements (35% fewer issues). Implemented multi-language support via react-intl and Lokalise, enabling 13+ languages. Designed Node.js microservices and Python data pipelines, applying SOLID and idempotent API design to achieve 99.9% uptime for assessment workflows. Engineered MongoDB schemas and PostgreSQL tables to manage recruiter/candidate data, boosting query performance by 45%. Architected a RabbitMQ-driven pipeline (50K+ messages/day) to batch data into S3 Parquet for Athena analysis, enhancing data availability and scalability. Improved fault tolerance with retries, timeouts, and DLQs, reducing DLQ backlog and S3 upload failures while cutting processing latency. Automated CI/CD using Concourse, Docker, and Nomad, reducing release cycles by 70% and strengthening security with Vault and