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Professional Journey

Transforming ideas into scalable solutions through 11 years of engineering excellence

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Experience
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Achievements

Senior Developer

Optimizely logo

Optimizely

2023 - 2026
3 years, 3 months
Full-TimeHybrid|
Dhaka, Bangladesh

Key Achievements & Responsibilities

  • Proactively identified process inefficiencies and co-engineered SpireWiz, an internal AI-powered upgrade automation tool for the Expert Services team (Python + OpenAI Platform APIs) using three-way merge conflict resolution, with the OpenAI APIs resolving what the merge cannot settle; serving a portfolio of 25+ enterprise clients, it cut upgrade cycles by up to 80%, reclaimed an estimated 600+ developer hours annually, and is projected to deliver an estimated USD 180K in annual business value.
  • Completed frontend development for Cogent and AIH, the first completed Classic (Angular) to Spire (React) migrations on the Optimizely Configured Commerce platform, finishing 55% faster than the team's earlier attempts at comparable migrations and establishing reusable migration patterns for future client upgrades.
  • Led the code-profiling effort on a 60-day performance engagement for a large B2B distributor on Optimizely Configured Commerce, as part of a 4-engineer Expert Services team: load-tested (JMeter) and profiled hot-path APIs, diagnosed N+1 query patterns and over-configured handler pipelines, and delivered optimization guidance the client shipped to meet a sub-1000ms API SLA.
  • Extended the Configured Commerce backend in C# through its handler and pipeline model rather than forking the base platform, including the ERP integration pipelines for Infor CloudSuite Distribution and SX.e V11 that sync inventory, pricing and orders into the storefront.
  • Selected for cross-team development on Optimizely Opal, the company's AI platform: built OpalSpark, a .NET 9 framework for Opal AI tools with attribute-based tool auto-discovery, config-driven auth, and built-in health, rate-limiting and tracing; also built a custom Opal tool surfacing Configured Commerce order history, earning two Opal certifications.
  • Used AI-assisted SDLC workflows daily (Claude Code custom agents/commands, Cursor, GitHub Copilot, MCP tooling) to accelerate code analysis, feature implementation and refactoring, while keeping all production code human-reviewed.
  • Conducted 100+ code reviews across 15+ B2B client projects and instituted mandatory PR review across the engineering team.

Software Engineer → Senior Software Engineer

Kaz Software logo

Kaz Software

2016 - 2023
6 years, 10 months
Full-TimeOn-Site|
Dhaka, Bangladesh

Key Achievements & Responsibilities

  • Architected and led the legacy-to-microservices modernization of the Reganalytics global trade-compliance platform using ASP.NET Core and Docker, cutting API response times from ~2.5s to ~280ms (~9x faster), including a dedicated authentication and authorization microservice on ASP.NET Core Identity with role-based access (SuperAdmin/Admin/User) and a shared client library for sibling services, and enabling real-time data updates.
  • Architected serverless cloud infrastructure on AWS (Lambda, Step Functions, DynamoDB, Cognito) for WebEvv, an EVV healthcare-tracking platform, hosting ASP.NET Core APIs in Lambda behind API Gateway so spiky visit traffic scaled to zero between events; the platform spanned caregiver visit verification through to agency billing, with scheduled monthly invoicing running as its own Lambda and Stripe payments in the React client.
  • Designed and implemented load-balanced Ocelot API gateways handling routing, auth, rate limiting and request transformation across 40+ .NET services for Robi's SVS platform (telecom serving millions of subscribers), and established shell-scripted automated CI/CD deployment across 9+ Linux servers, reducing deployment time from 6–8 hours to under 1 hour.
  • Contributed to the legacy ASP.NET to ASP.NET MVC and Angular stack upgrade of Devensoft, an enterprise M&A platform for US-based clients, implementing backend APIs and Angular components across six core modules (pipeline management, due diligence, post-merger integration, synergy tracking, legal workflow, reporting), hands-on with Azure (App Services, Functions, VM, Azure AD) and Azure DevOps.
  • Delivered 12+ enterprise projects spanning telecom, finance, healthcare, and social engagement domains while managing and mentoring cross-functional Agile teams of 8–12 developers, enforcing code-quality standards and automated testing gates to minimize production regressions.

Software Engineer

Chorki Limited logo

Chorki Limited

2015 - 2016
1 year
Full-TimeOn-Site|
Dhaka, Bangladesh

Key Achievements & Responsibilities

  • Engineered a cross-platform Notification Hub generating targeted push notifications across Android, iOS, and Windows desktop clients using RabbitMQ and Socket.io.
  • Developed REST APIs in Node.js and dynamic UI components in AngularJS for high-traffic web applications.
  • Built a backend data-aggregation engine to scrape, process, and store news feeds from multiple high-volume sources into MongoDB.

Intern

Brain Station-23 logo

Brain Station-23

2014 - 2014
4 months
InternshipOn-Site|
Dhaka, Bangladesh

Key Achievements & Responsibilities

  • Feature implementation and Bug fixing on a Social & Professional networking site named Whooza.
  • Actively worked on a Management Portal of Bangladesh College of Physicians and Surgeons (BCPS).