Based in Dhaka · Backend Engineer

Jisan
Ahmed

Software Engineer — building distributed systems that scale

Backend software engineer with 2+ years of experience building and operating high-traffic systems in Go. At Pathao, I work on graph-based relationship analysis, fraud detection, campaign orchestration, and feature platforms across Ride, Food, and Parcel. I also research code generation for LLMs and AI-assisted pipeline systems.

At a glance
Current role Software Engineer
Users impacted daily 2.7M+
Engineer-hours saved / yr 3K+
Problems solved 2000+
Degree · CGPA BSc SWE · 3.92
Primary language Go
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Skills & Technologies

Languages
GoPython JavaScriptC++
Infrastructure
KubernetesDocker GKEPrometheusGrafana
Databases & Caching
PostgreSQLNeo4j MySQLRedisBigQuery
Messaging & APIs
RabbitMQGCP Pub/SubREST GraphQLgRPC
Frameworks & Data
DjangoFastAPICeleryCypher
Core Interests
Distributed Systems System Design Fraud DetectionGraph Systems
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Work Experience

Pathao
June 2025 — Present
Gulshan 2, Dhaka
Current
Software Engineer
  • Syndicate — Graph Relationship Analysis — Contribute to a Go and Neo4j service that verifies entity connections before allocation, finds shared communities, and computes shortest-path hop distance. It supports authenticated APIs and concurrent batch analysis with partitioning and retries on GKE.
  • Sherlock — Fraud Detection Engine — Contribute to a Django and Celery rule engine running scheduled checks across MySQL, PostgreSQL, and BigQuery for Ride, Food, Parcel, and device-cloning fraud, with configurable enforcement and appeal workflows.
  • Pathao Loop — Designed and owned a campaign orchestration platform serving 2.7M+ users daily across push, SMS, email, and in-app channels, replacing manual workflows and saving 3,000+ engineer-hours annually.
  • Pathao Itihas — Built a unified feature-store platform for Pathao Ride, Food, and Parcel that ingests historical data from BigQuery and PostgreSQL, synchronizes to real-time tables, and uses Redis-backed caching. Exposed feature delivery through REST and GraphQL APIs with async task-queue execution, alerting, and metric discovery for reliable model-ready data access.
  • Prohori & ESB Webhook — Architected a Go telemetry service using GCP Pub/Sub, Uber H3, and Redis to detect hazardous route deviations on live trips. Also designed a centralized webhook system with validation, idempotency, and exponential-backoff retries.
  • Corridor — Engineered a Go reverse proxy centralizing internal ML and data APIs and handling 1M+ calls/day, with Prometheus observability and automated Kubernetes delivery through Docker, Helm, and GitLab CI/CD.
  • Popular Pickup & Platform Tooling — Built a location-intelligence service that improved trip conversion by 17%; also contributed to consistent-hash A/B bucketing and n8n-based engineering automation.
Truck Lagbe
July 2024 — June 2025
Mohakhali DOHS, Dhaka
1 year
Junior Backend Engineer
  • Query Performance — Profiled and optimized 15+ complex MySQL queries, reducing latency by 25–40% across high-traffic endpoints serving 4,000+ daily active users.
  • Image & Messaging Services — Built a centralized GCS image service for three applications and a RabbitMQ notification broker with dead-letter handling for reliable push and in-app delivery.
  • Marketing Platform — Architected a Go campaign panel with GCS media handling, allowing marketing teams to publish banners and documents without engineering support.
  • Authentication Migration — Migrated the login service from Node.js to Go while preserving backward compatibility with existing clients.
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Current Research

UIUC · Research Intern · Summer 2026

Code Generation & LLMs

Contributing to survey research on the current landscape and next generation of code LLMs, alongside follow-on work examining how diffusion models may change code generation approaches.

Concordia University · Research Assistant · 2026—Present

AI-Assisted Proposal Analysis

Co-built an eight-stage LLM pipeline for document extraction, fact and dimension analysis, multi-candidate answering, confidence and drift scoring, expert opinion generation, and final report compilation. Paper under review at ICAIF 2026.

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Selected Projects

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Competitive Programming

More than 2,000 problems solved across competitive programming platforms, building the algorithmic foundation I bring to complex backend and distributed-systems work.

Competition Highlight
🥇
DU Code Samurai 2024
Selected as a finalist at one of Bangladesh's most prestigious university hackathon competitions.
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Get in Touch

Let’s build systems that stay fast, observable, and dependable.

If you’re working on distributed platforms, graph systems, fraud detection, or applied AI infrastructure, I’d be glad to connect.