​ Shahzaib Ahmed — Principal Software Engineer
Available for opportunities

Shahzaib
Ahmed

Principal Software Engineer
Ruby on Rails · Distributed Systems · Search · AWS · ReactJS

✉ shahzaib.ahmed888@gmail.com in linkedin.com/in/shahzaib-ahmed1 📍 Lahore, Pakistan
6+
Years Experience
700M+
Profiles Handled
20TB
Data at Scale
5+
Major Products
Ruby on Rails Meilisearch AWS PostgreSQL ReactJS Redis Vector Search ClickHouse
01

About

Principal Software Engineer with over six years of experience building scalable SaaS products, distributed systems, and enterprise-grade backend applications.

Specialized in Ruby on Rails, backend architecture, cloud infrastructure, and high-performance search systems — with deep expertise in designing recruitment and talent discovery platforms that handle hundreds of millions of professional profiles using Meilisearch and vector-based search technologies.

Experienced in developing scalable APIs, distributed services, caching solutions, and background processing pipelines across AWS and OVH environments. Proven track record of leading engineering initiatives, mentoring developers, improving system performance, and delivering reliable, scalable solutions aligned with business goals.

Current Role
Principal Software Engineer
Company
Amento Tech Pvt Ltd
Specialization
Backend · Search Systems · SaaS
Education
BS Computer Science, UOL
02

Technical Skills

Languages
Programming Languages
Ruby JavaScript Python SQL
Backend
Backend Development
Ruby on Rails REST APIs Sidekiq Distributed Systems Microservices Background Processing
Frontend
Frontend Development
ReactJS Next.js HTML5 CSS3 Tailwind CSS Redux
Search & Data
Search & Data Systems
Meilisearch Vector Search Full-Text Search Search Optimization Data Pipelines ClickHouse
Databases
Databases & Storage
PostgreSQL MySQL Redis
Cloud & Infra
Cloud & Infrastructure
AWS OVH Cloud Docker CI/CD Nginx Heroku AWS Lambda
Tools
Testing & Dev Tools
RSpec Git Bitbucket Agile Scrum Jira GraphQL
03

Experience

Mar 2025 – Present
Amento Tech
Principal Software Engineer
Rails · React · PostgreSQL · Redis · Meilisearch · Vector Search · AWS · OVH
  • Contributing to architectural decisions for scalable SaaS applications used in recruitment and talent discovery.
  • Designing and optimizing backend systems supporting large-scale search and recruitment workflows.
  • Working on search infrastructure using Meilisearch and vector search to improve relevance and filtering.
  • Improving application performance through database optimization, caching strategies, and infrastructure enhancements.
  • Building and maintaining scalable REST APIs for platform integrations and internal services.
  • Supporting development standards through code reviews, technical discussions, and mentoring developers.
Senior Software Engineer Apr 2024 – Mar 2025
  • Contributed to a talent platform handling 500M+ professional profiles.
  • Built and optimized search systems using Meilisearch and vector search technologies.
  • Designed REST APIs and backend services for search, filtering, and recruitment workflows.
  • Implemented caching and query optimization techniques to improve response times.
2023 – 2024
Viral Square
Senior Software Engineer
Rails · React · PostgreSQL · GraphQL · AWS · Heroku · Tailwind
  • Developed web applications using Ruby on Rails and React.js as a Full Stack Engineer.
  • Built REST APIs and backend services for frontend integrations.
  • Integrated GraphQL APIs for data retrieval and third-party services.
  • Designed and implemented a connector service for communication between external platforms.
  • Maintained application quality through testing and debugging using RSpec.
Jul 2021 – Sep 2023
Devsinc
Software Engineer
Rails · React · Next.js · PostgreSQL · AWS · AWS Lambda · Heroku
  • Developed backend and frontend features using Ruby on Rails, React.js, and Next.js.
  • Delivered multiple major client projects within agile development cycles.
  • Worked on AWS deployments and cloud infrastructure management.
  • Led a small development team and conducted code reviews.
  • Collaborated directly with international clients on requirements and feature implementation.
Associate Software Engineer & Web Trainee Mar 2021 – Jul 2022
  • Assisted in backend and frontend development tasks, database work, and bug fixing.
  • Collaborated with senior engineers during development and deployment processes.
  • Learned software development workflows and collaborative development practices.
04

Projects

01
Synaposet — AI-Powered Lead Generation
Architected a B2B growth platform managing 20TB of data and 700M+ profiles using Ruby on Rails 8, ClickHouse, and semantic LLM-based search. Enables scalable lead generation and intelligent prospect discovery through a conversational AI interface with CRM and multi-channel outreach integration.
AI Conversational Agent Semantic Search 700M+ Records CRM Integration ClickHouse
02
Scholar Stream — E-Learning Platform
Designed and developed a modern e-learning platform for professionals featuring live and on-demand courses, AI-assisted instructor chat for real-time learning support, seamless course enrollment, and integrated payment processing — delivering an end-to-end learning experience.
Live Online Classes AI Instructor Chat Payment Integration LMS
03
Golf Athlete Pro — Fitness & Training
Built a cross-platform fitness app for golfers delivering personalized workout programs through an onboarding flow with auto-enrollment. Supports guided video-based workouts, progress tracking, program switching, and optional coach connection across web and mobile.
Auto-Enrollment Video Training Progress Tracking Coach Hiring Cross-Platform
04
BrokerSync — Insurance Middleware
Built a middleware integration platform connecting insurance agents with multiple carriers through a unified system. Handles data transformation, request/response shaping, and authentication management across multiple third-party insurance APIs, eliminating the need to switch between carrier portals.
Multi-Carrier Data Transformation Auth Management Unified Portal
05
ActivityFlow — After-School Management
Comprehensive platform for discovering, managing, and enrolling in after-school activities. Supports end-to-end lifecycle management including school onboarding, dynamic form creation, payment and refund processing, daily attendance tracking, and integrated background verification for staff.
Activity Discovery Payments & Refunds Check-in System Dynamic Forms Background Checks
05

Education

Bachelor of Science
Computer Science
The University of Lahore · 2017 – 2021
2021