PABITRA KUMAR DEY
@pabitrakumardey
Engineering Team Lead | Senior Backend Engineer | Backend Architect | LLM & Agentic AI | Distributed Systems | PHP • Python • AWS
IndiaWhat I'm looking for
I’m a Backend Engineering Lead and Senior Backend Engineer with nearly 9 years building and scaling SaaS backend platforms using PHP and Python on AWS. I lead an 8-engineer team while owning architecture reviews, technical delivery, and mentoring.
In my current role, I designed fault-tolerant AWS microservices and improved system performance by 32% while maintaining 99.9% availability using Datadog and New Relic observability. I’ve also reduced API response time by 44%, supported 3x concurrent-user growth, and improved system performance further through caching, search optimization, and Logstash pipeline tuning.
I care about production reliability and delivery excellence: I streamline engineering execution with Agile practices, modernize CI/CD with Jenkins, Docker, and CI/CD workflows, and expand event-driven processing with RabbitMQ and AWS EventBridge. I enjoy turning complex backend requirements into resilient REST APIs, event-driven workflows, and secure authentication integrations.
Experience
Work history, roles, and key accomplishments
Lead 8 backend engineers and own technical roadmap, HLD/LLD reviews, and delivery planning. Designed fault-tolerant AWS microservices and improved performance and availability through Datadog and New Relic observability.
Designed and delivered PHP and Python REST APIs and microservices for high-traffic SaaS platforms, including assessment, search, and payment workflows. Built automated order-to-payment processing using Braintree GraphQL and AWS services, and mentored engineers through pair programming and design reviews.
Improved API performance using caching, Elasticsearch optimization, and Logstash pipeline tuning, while scaling to 3x concurrent users. Built asynchronous workflows with Celery and RabbitMQ to reduce manual engineering effort and improve distributed service throughput and fault tolerance.
Owned the full SDLC for SaaS backend services and workflow automation. Reduced manual support workload and improved ticket resolution time through backend ownership and workflow improvements.
Achieved 97% SLA adherence and reduced downtime through proactive code reviews, system monitoring, and defect prevention. Mentored trainee engineers and supported production issue resolution.
Education
Degrees, certifications, and relevant coursework
Academy of Technology, West Bengal
Bachelor of Technology (B.Tech), Information Technology
2013 - 2017
Completed a B.Tech in Information Technology at Academy of Technology, West Bengal from 2013 to 2017.
Availability
Location
IndiaAuthorized to work in
Salary expectations
Social media
Skills
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