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◐ GMT+6 / Dhaka
Available for new opportunities · Dhaka, BD SK MD Mostofa Mohiuddin
◆ engineer / platform / agents

Mostofa Mohiuddin
writes systems that think.

Software engineer at Optimizely. Architecting Opal, the AI platform powering 40% of experiments. Working at the edge of LLM orchestration and distributed systems.

Get in touch → View projects →
~/mostofa — zsh
$whoami mostofa.mohiuddin $cat ./role.json {   "title": "Software Engineer",   "company": "Optimizely",   "focus": ["LLM orchestration", "agent design"],   "shipping": "Opal" // 40% of experiments } $open inbox
01 / 08

About the work.

introduction

I'm a software engineer at Optimizely, where I architect and scale Opal — an AI agent platform that now powers 40% of experiments across the product.

My day-to-day sits at the intersection of distributed systems, LLM orchestration, and product engineering: designing agent execution loops, taming hallucinations in production, and turning complex AI capabilities into low-latency user experiences.

Previously at GoldKinen, I shaved 85% off AWS Lambda costs and shipped the REST API layer for their mobile app. I love the deep problems — connection pooling, vector search, streaming orchestration — and the craft of making them invisible.

0%
of experiments powered by the AI platform I architect
0%
end-to-end latency cut in the Test Ideation pipeline
0%
AWS Lambda exec cost reduced via connection pooling
0×
more likely for power users to rely on AI insights
02 / 08

Where I've worked.

experience
Jan 2023 — Now ● current

Software Engineer

Optimizely · Dhaka
  • Architected and scaled Opal (Common Co-Pilot), an AI agent platform powering 40% of experiments via ideation, variation generation, and analysis.
  • Designed the agent execution loop with Vertex AI (Gemini), function calling, and Cloud Spanner vector search, plus a custom streaming orchestration layer — improving reliability and reducing hallucinations in production.
  • Cut end-to-end latency by 50% in Test Ideation via parallelized metadata processing and pre-validation that eliminated unnecessary LLM calls.
  • Drove adoption of AI-generated insights to 45% of enterprise users, with 2.05× higher engagement among power users.
  • Led an AI-driven visual editor using dynamic script orchestration, enabling natural-language UI modification.
  • Mentored engineers and delivered internal sessions on agent architecture, improving team adoption and dev velocity.
typescript react vertex ai gemini spanner graphql
Feb 2022 — Dec 2022

Software Engineer

GoldKinen Technologies · Dhaka
  • Cut AWS Lambda execution cost by 85% by implementing connection pooling and eliminating per-invocation DB overhead.
  • Resolved cold-start failures in latency-sensitive endpoints with a scheduled warm-up strategy, adding <$5/mo in infra cost.
  • Built and maintained the core REST API layer powering the mobile app and internal tooling across the product lifecycle.
node.js aws lambda postgres rest react
03 / 08

Selected projects.

02 · personal
P / 01 · 2024 ↗

MailSync

Unified inbox · AI

A unified inbox that integrates Gmail, Calendar, and OpenAI to deliver summaries, smart reply suggestions, and automated scheduling — on a Docker + AWS stack.

react fastapi go docker aws openai
P / 02 · 2023 ↗

SHIELD

Chrome ext · on-device ML

A privacy-first Chrome extension that classifies abusive emails in real time using a fine-tuned DistilBERT running fully on-device — no data ever leaves the browser. Evaluated with 70 participants.

distilbert onnx transformers.js chrome ext.
04 / 08

Code in the open.

@MostofaMohiuddin

Last 12 months contribution graph

52 weeks
less more

Top languages by commits

TypeScript
42%
Python
24%
Go
14%
JavaScript
10%
Shell
6%
Other
4%
View on GitHub →
05 / 08

Toolbox.

technical skills
01 Languages
TypeScriptPythonGoJavaC / C++
02 AI & LLM
Vertex AIGeminiOpenAIFunction callingVector searchAgent design
03 Frontend
ReactNext.jsModule FederationGraphQL · Apollo
04 Backend
FastAPINode.jsDjangoRESTTypeGraphQL
05 Infrastructure
AWSGCPDockerMicroservices
06 Databases
PostgreSQLCloud SpannerMongoDBFirebase
06 / 08

Education.

background

B.Sc. in CSE

BUET — Bangladesh University of Engineering and Technology
period Feb 2017 — May 2022
cgpa 3.53 / 4.00
thesis On-device toxicity detection

Relevant coursework

Data Structures & Algorithms
Computer Architecture
Compiler Design
Operating Systems
Machine Learning
Artificial Intelligence
Software Development
Computer Security
07 / 08

Recognition.

certs & awards
Certification

Google Cloud Associate Cloud Engineer

Issued 2024 · valid through 2027
Validates hands-on infra: deploying, monitoring, and operating workloads on GCP at scale.
Competition · Finalist

Robi Datathon 3.0 — Top 20

2022 · 1,000+ teams
Used ML to solve forecasting problem sets and made it to the final round against 1,000+ teams.
08 / 08

What people say.

voices
"
Mostofa takes ownership of his work end-to-end. A prime example was his single-handed delivery of key Opal features to production for Experimentation — a critical achievement. He combines technical capability with strong accountability and emotional intelligence.
MI
Mohammed Ibrahim Islam
Engineering leader · Optimizely
"
Mostofa is an excellent teammate with amazing charismatic skills — eager to learn, take on challenges, and get things done. Strong coding chops plus communication, teamwork, and documentation.
AH
Azizul Hakim
Engineering manager · DataSnipper
· let's talk ·

Building something
interesting?

Open to senior software roles, AI agent collaborations, or a good conversation about LLM orchestration and distributed systems.

skmdmostofamohiuddin@gmail.com → LinkedIn ↗ GitHub ↗
available ◐ Dhaka, BD ↻ replies in 24h
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