Md Obydullah
Senior Software Engineer
Summary
9+ years building and operating production systems. Lead engineer at Electronic First (electronicfirst.com) for the last 5+ years. Strong on backend, AWS at scale, security, and applied AI. Currently shipping AI features into real products without losing what already works.
Experience
Remote (employer based in Fujairah, UAE) · Full-time, 9+ years
Lead Software Engineer · 5+ yrs
Jan 2021 – Present- Lead a 9-person distributed engineering team across Bangladesh and India. Reviewed 400+ CVs and personally hired 7 developers.
- Own production AWS for 6+ years end-to-end: EKS, RDS Multi-AZ, ECR, Cloudflare. Cost-first scaling: offload logs to S3 + ClickHouse instead of upsizing the writer.
- Defended the platform against multi-million-hit bot / DDoS attacks; tuned Cloudflare WAF by hand. Run own pentests; found and fixed cart session hijack and rate-limit gaps.
- Designed and shipped Pulse: internal multi-platform AI agent on OpenAI's tool-use API. TypeScript, Node 22+, adapter pattern, typed tools per capability. Live on Discord, Telegram + WhatsApp planned.
- Built Go microservices on EKS that replaced legacy Laravel jobs: Merchant Center Feeds (queries 2M → 240, full sync 7d → 10min, image 200MB → 20MB), Provider Price Sync (auto-routes cheapest supplier across 4 external APIs), Product Feeds Generator (60s → 20s/feed, RDS CPU 99% → negligible).
- Multi-country operating environment: weekly leadership syncs in English with London-based senior management; team and partners across UK, UAE, BD, IN, PH, EG.
Laravel Developer · 2 yrs
Jan 2019 – Dec 2020- Solo-rebuilt electronicfirst.com from WordPress to Laravel. Ran WordPress in parallel for ~1 year for a safe, feature-by-feature migration. Zero-data-loss cutover.
- Built the core platform features that the team I now lead continues to extend.
WordPress Developer · 2 yrs
Jan 2017 – Dec 2018- Maintained and extended the legacy WordPress storefront and prepared the ground for the Laravel migration.
Upwork
Remote · Freelance
- Top Rated freelancer. Web and Android delivery for international clients.
Fiverr
Remote · Freelance
- Level 2 seller. Web and Android delivery for international clients.
Makpie
Bangladesh · Co-Founder
- Co-founded Bangladesh's first blood-donor search engine. Built the product, ran it, and shut it down deliberately rather than letting it rot. Owned a product end-to-end including the unglamorous part.
Skills
- Programming
- GoTypeScriptJavaScriptPythonPHPSQLHTML / CSSBash
- Backend
- LaravelNestJSDjangoFastAPIFlaskExpress
- Cloud & DevOps
- AWS (EKS, RDS, S3, SQS, ECR, Lambda)KubernetesArgo CDTerraformDockerGitHub ActionsCloudflare
- Databases & Data
- MySQLPostgreSQLRedisClickHouseDynamoDBKafkaAirflowDebezium
- AI / ML
- OpenAI tool-useLangChainLlamaIndexRAG pipelinesVector DBs (Pinecone, Qdrant, pgvector)MCP / FastMCPHugging Face
- Security
- CEH v12 (course)Cloudflare WAFBurp SuitePentesting (own platform)Web app security
- Observability
- GrafanaLokiPrometheusDatadogSentryPostHog
- Frontend
- Next.jsVue.jsTailwindCSS
Education
Daffodil International University
BSc, Computer Science & Engineering · Dhaka, Bangladesh
Languages
- English · Professional (daily work with London-based senior leadership)
- Bengali · Native
Certifications
- Certified Ethical Hacker v12 · EC-CouncilCourse completed (full syllabus). Did not sit the exam.
Selected projects
Merchant Center Feeds Sync
2024Go microservice on AWS EKS that syncs ~520K product entries to Google Merchant Center. Replaced a slow Laravel cron with a quota-aware, batched, real-time pipeline.
- →Queries per full sync: ~2,000,000 → ~240
- →Full-sync time: ~7 days → ~5–10 minutes
Provider Price Sync
2024Go microservice that keeps a storefront showing the cheapest available price per SKU across multiple external supplier APIs. Routes customers to the lowest price automatically.
- →Two K8s CronJobs: main price-checker every 5 min, encrypted-feed sync every 30 min
- →Cursor-based batching, idempotent and resumable
Pulse · Internal AI Agent
2024Internal multi-platform AI agent. Business users ask natural-language questions in Discord and get live data from internal APIs via OpenAI tool-use.
- →Natural-language queries mapped to internal APIs via typed tools
- →Adapter pattern: Discord live, Telegram + WhatsApp planned
Production Cloud Platform
2019 to todaySix years owning a production AWS environment end-to-end. Architecture, deploys, cost, scaling, security. The platform behind everything else on this page.
- →Serves ~1.56M unique visitors, 87M+ requests, 2 TB of traffic per 30 days
- →RDS Multi-AZ, RDS Proxy connection pooling, auto-scaling groups