Open to opportunities

Hessam Parchehbafieh

@hessamparchehbafieh

Senior Python back-end developer focused on high-throughput distributed systems, async processing, and scalable microservices.

Turkey

Message

What I'm looking for

I’m looking to build and scale back-end systems end-to-end—owning microservices, async workers, and event-driven pipelines—while partnering closely with teams to reduce latency, improve reliability, and automate operations with clean, secure APIs.

I’m a Senior Python Back-End Developer with 6+ years engineering high-throughput distributed systems. I’ve consistently improved performance and reliability—cutting latency by up to 20%, reducing integration errors by 40%, and saving 35+ hours weekly through cleaner backend architecture.

I own backend architecture end-to-end, specializing in FastAPI and Django REST Framework. I lead asynchronous task processing with Celery and Redis, build event-driven communication with Apache Kafka, and design RESTful APIs with strong security foundations using Keycloak (OAuth 2.0) and OWASP-aligned practices.

In my recent roles, I’ve accelerated authentication setup by 30% using Keycloak-based OAuth 2.0, reduced service response time by 25% with FastAPI in microservices (alongside Golang), and eliminated synchronous bottlenecks for heavy workloads. I also improve operational outcomes with automation engineering—building low-code pipelines in n8n and integrating APIs like the Pipedrive API and OpenAI Whisper to deliver near-zero reporting lag.

Experience

Work history, roles, and key accomplishments

Current

Senior Back-End Developer

Current

Metareq GmbH

Nov 2025 - Present (7 months)

Accelerated authentication setup by 30% by integrating Keycloak-based OAuth 2.0 authorization and standardizing security across microservices. Reduced service response time by 25% using FastAPI and Golang, and eliminated synchronous bottlenecks for 100% of heavy workloads with Celery + Redis and Kafka-based event-driven communication.

fastAPI Golang Keycloak OAuth 2.0 Microservices Celery Redis Apache Kafka Docker Event Driven Architecture

Back-End Developer

Irancell-Labs

Jun 2024 - Mar 2026 (1 year 9 months)

Reduced data integration errors by 40% by building and maintaining 10+ OpenAPI-specified REST APIs. Saved data analysts 15 hours/week (and cut query latency ~20%) by redesigning PostgreSQL schema, and improved throughput by offloading background workloads with Celery while optimizing high-traffic API dashboards using PostgreSQL materialized views.

Django REST Framework REST APIs OpenAPI PostgreSQL Materialized Views Partitioning Celery Redis Database Schema Design

Back-End Developer

Beederang

Jun 2023 - May 2024 (11 months)

Increased crypto payment adoption by 10% by engineering a production payment gateway using the Tron Blockchain API. Reduced manual support intervention by 40% by automating voucher generation for 200+ customers with Python + Celery, and enabled real-time trading signal alerts using Celery + Redis.

Python Celery Redis Tron Blockchain API Payment Gateways Django REST Framework Background Jobs

Back-End Developer

Bime Iran Broker

Feb 2021 - Jun 2023 (2 years 4 months)

Delivered an in-house insurance ERP by building Django REST Framework APIs across 4 internal business units, reducing cross-team integration time. Reduced paperwork by 80% and boosted BI response time by ~50% by rebuilding the Power BI reporting infrastructure, while building a configurable credit risk management and loyalty scoring panel.

Django Django REST Framework REST APIs Power BI Credit Scoring PostgreSQL BI Reporting Data Modeling