Description

I am a Berlin-based Senior Backend Engineer with over 15 years of professional experience specializing in scaling mission-critical systems and high-availability architectures. I have a proven track record of transitioning legacy monoliths into DDD-based microservices and designing secure multi-tenant SaaS solutions.As a co-founder of AI platforms like Hellogram.ai, I led the development of scalable digital replicas using LLMs (ChatGPT), voice cloning, and AWS/Kubernetes. I am an AI-first developer, leveraging modern automation to reduce system latency and improve scalability—consistently achieving performance gains of up to 80%.Why Hire Me?Backend Mastery: Expert in PHP 8 (Laravel, Symfony) and Python (FastAPI, Flask, Scrapy).Infrastructure & DevOps: Deep expertise in Docker, Kubernetes, AWS, and Azure for secure, high-performance environments.Data Engineering: Specialist in large-scale web crawling (Scrapy) and advanced MySQL/PostgreSQL tuning.Secure Architecture: Implementation of RBAC, OAuth2/SSO, and separate database-per-tenant isolation.Berlin-Based: Currently residing in Berlin (Mitte) and available for local or remote projects.Core Technical StackLanguages: Python, PHP, Go, JavaScript.Frameworks: Laravel, Symfony, FastAPI, Flask, Django, Scrapy.Cloud & Tools: AWS (EKS, SQS), Azure, Docker, Kubernetes, CI/CD (GitLab/GitHub), Redis.Specialties: Microservices, AI/LLM Integration, ETL Pipelines, System Provisioning.

Languages

English
Native or bilingual
Hindi
Fluent
German
Conversational

Workplace preferences

Remote only

Primarily works remotely

Marengo Knoll
Software Engineer
DIGITAL AND IT
March 2023 - September 2025 (2 years and 6 months)
■ Built and scaled AWS/Kubernetes infrastructure for Hellogram.ai, an AI platform for lifelike conversational replicas. Integrated LLMs and voice pipelines, defined system architecture, and led backend engineering. Optimized performance, reducing response latency by 80% while improving scalability.
Laravel PHP
Self-Employed
Independent Consultant
August 2021 - Today (4 years and 10 months)
Pakistan
■ Designed scalable, cost-efficient system architectures and optimized cloud infrastructure across AWS, Azure, and DigitalOcean. Implemented CI/CD pipelines, improved operational workflows, and built full-stack apps and APIs. Led engineering hiring, enforced code quality through reviews, and ensured secure, high-performance environments. Skilled in Python, data engineering, ETL, web crawling, DevOps, and reverse engineering.
Zyte Data Ltd.
Python Developer
July 2021 - September 2022 (1 year and 2 months)
■ Engineered high-performance web crawlers at Zyte for major retailers, building and maintaining reliable Scrapy spiders and large-scale data pipelines. Improved Scrapy's performance and stability, delivered high-quality data solutions, and resolved complex anti-bot and site-change challenges. Drove innovation in scraping infrastructure while collaborating across teams. Skilled in Python, Scrapy, data extraction, and data engineering.