Professional Overview

Backend engineer with 11+ years building APIs, services, and data platforms on Node.js, .NET Core, and serverless runtimes. Deep experience with Postgres, Kafka, Redis, Cosmos DB, ClickHouse, and event-driven architectures.

Professional Experience

AdoptSequence & AdoptIQ (Curtis Digital Inc.) — Remote
Solution ArchitectOct 2023 – May 2025

Led architecture and platform engineering for two SaaS products: an onboarding/automation platform and an A/V enhancement workflow service.

  • Led backend migration of AdoptSequence from AWS Lambda → Trigger.dev to support long-running video processing.
  • Architected end-to-end audio/video enhancement workflows using FFmpeg, Whisper, and AI voice synthesis.
  • Integrated Supabase for real-time sync and Postgres storage; replaced Ably, lowering latency and cost.
  • Operationalized RUM + APM in Datadog with CloudWatch signals; guided devs to review error patterns, improving iteration speed by ~50%.
  • Implemented PostHog-based interaction analytics with Kafka ingestion, ClickHouse OLAP, and Redis caching; authored the event schema and ETL, reducing time-to-activation and improving onboarding efficiency.
  • Owned the full DevOps lifecycle: CI/CD pipelines, infrastructure automation, deployment strategy, monitoring, and cloud cost optimization across AWS and Cloudflare.
  • Managed multi-repo codebases on GitHub with standardized PR reviews and automation.
  • Mentored junior developers, enforced best practices, and led roadmap execution with founders.
  • Integrated Clerk authentication across multiple applications.
Colliers International (via TopCoder) — Remote
Senior Full-stack DeveloperOct 2021 – Sep 2023

Modernized internal apps for a global commercial real-estate firm, replacing third-party tools with Azure-native and AWS-native services.

  • Replaced a 3rd-party valuation tool with an internal AWS solution (EC2, S3, SES, RDS) in 3 weeks; cut vendor cost ~60–80% and absorbed additional developer cost solo.
  • Architected microservices on Azure Functions backed by Cosmos DB + SQL Server; reduced API p95 latency ~30–50%.
  • Implemented IaC + CI/CD with Terraform and Azure DevOps.
  • Mentored engineers and led POCs with architects/BAs; reduced new-hire ramp ~30–50% and accelerated concept-to-pilot ~2x.
  • Drove code reviews and onboarding standards; PR cycle time −20–35%, post-release defects −20–40%.
Relisource Inc. — Dhaka, Bangladesh
Senior Software EngineerNov 2018 – Aug 2021
  • Developed a Clinical Trial Management System for a global pharmaceutical client.
  • Actively mentored team members on architecture and clean code practices.
Astha IT — Dhaka, Bangladesh
Senior Software EngineerMar 2014 – Oct 2018
  • Led development for enterprise systems in logistics, education, and fintech.
  • Mentored junior engineers and participated in system architecture, client demos, and delivery cycles.

Projects

FinSync — Personal Finance Intelligence

Elastic Serverless data streams + Vertex AI. Hybrid search (keyword + vector), monthly transforms, and a RAG chat layer. Pydantic-validated JSON ingestion.