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Marlon Parmanand

Senior Full Stack Engineer

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New York, NY, United States
Senior Full Stack Engineer at Tata Consultancy Services
Joined July 30, 2025

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English
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Native or Bilingual
About
Senior Full Stack Engineer with 9+ years of experience architecting and delivering scalable, high-performance web applications. Expert in modern frontend frameworks (React.js, Vue.js, Svelte, Angular) and backend technologies (Node.js, Python, Java, C#). Skilled in building RESTful and GraphQL APIs, designing microservices architectures, and driving CI/CD, containerization, and DevOps best practices. Proficient in AWS, GCP, and Azure, with hands-on integration of AI/ML capabilities into full-stack solutions. Recognized for delivering maintainable, user-focused systems that optimize performance, security, and scalability.
Experience
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Tata Consultancy Services
Jul 2023 – Present
Senior Full Stack Engineer
• Architected Python/FastAPI/Go microservices for banking apps, improving transaction speed by 40% with 99.99% uptime • Developed RESTful APIs (Django) and GraphQL endpoints, enhancing data retrieval efficiency by 50% • Engineered high-performance Go microservices achieving 3x throughput and 70% lower latency • Migrated legacy systems to AWS using Docker/Kubernetes, reducing costs by 35% and improving scalability • Automated CI/CD pipelines (Jenkins/GitLab CI), cutting release cycles from weeks to days • Implemented IaC (Terraform/Ansible), reducing environment setup time by 75% • Designed RBAC authentication (Nest.js/TypeScript), reducing security vulnerabilities by 85% • Developed real-time data pipelines (Kafka/ELK) processing 1M+ events/sec for smart cities • Led ML-powered fraud detection (TensorFlow) achieving 95% accuracy • Optimized Spark/Hadoop workflows, accelerating clinical trial processing by 3x • Redesigned PostgreSQL/MongoDB schemas, reducing query time by 60% • Deployed Prometheus/Grafana, cutting system downtime by 70% • Built responsive UIs (React/Angular) with WCAG 2.1 AA compliance • Achieved 90% test coverage (Pytest/Selenium), reducing regression testing time by 70% • Mentored team of 8+ engineers, increasing team output and code quality significantly