Partharaj Deb

Principal Software Engineer @ Toptal (Core)

With over 12 years of professional experience since 2014, I specialize in software development & architecture, system design, technical leadership, and engineering strategy. My work goes beyond application development - driving architectural decisions, solving complex technical challenges, improving scalability and reliability, and guiding engineering teams toward sustainable solutions.

My experience spans cloud-native and distributed systems, DevOps, automation, and AI-driven solutions. I am also focused on integrating modern AI capabilities, including LLM applications, AI agents, RAG, model customization, and fine-tuning, to solve practical business and engineering challenges.

Software Architecture & Engineering

Designing and evolving scalable software systems, from architecture and technical decisions to implementation, modernization, performance, and long-term maintainability.

APIs, Integrations & Distributed Systems

Building APIs, SDKs, third-party integrations, and distributed services that connect products, platforms, payment systems, and external data sources.

Cloud, Automation & AI Solutions

Designing cloud infrastructure and delivery workflows while integrating AI capabilities such as LLM applications, AI agents, RAG, and model customization into practical software solutions.

Leading the way in Software Development

About Me

Skills

I continuously expand my technical perspective to keep pace with evolving engineering practices and emerging technologies. My focus goes beyond individual tools and frameworks to include architecture, system design, cloud engineering, DevOps, AI integration, and technical leadership.

Architecture & Engineering: System Architecture, Distributed Systems, API Design, Software Design Patterns, DDD, SOLID
Backend & Application: PHP, Java, Laravel, Spring Boot, REST APIs, Microservices
Cloud & DevOps: AWS, Docker, CI/CD, Infrastructure, Deployment & Automation
Data & Infrastructure: MySQL, PostgreSQL, Redis, Kafka, Data-intensive Systems
AI & Automation: LLM Applications, AI Agents, RAG, Prompt Engineering, Model Customization & Fine-tuning

SOFTWARE ARCHITECTURE & SYSTEM DESIGN

ENGINEERING, PROBLEM SOLVING & QUALITY

DATABASE & DATA ARCHITECTURE

TECHNICAL LEADERSHIP, MENTORING & COLLABORATION

CLOUD, DEVOPS & AWS

AI INTEGRATION & APPLIED AI

Experience

Since 2014, I have built a broad and evolving career in software engineering, progressing from hands-on development to architecture, technical leadership, and engineering strategy.

Over the years, I have worked across diverse products, domains, technologies, and engineering environments - designing systems, solving complex technical challenges, leading teams, and contributing to solutions that balance business needs with long-term technical sustainability.

This experience has shaped a practical, adaptable approach to engineering, with a strong emphasis on ownership, continuous improvement, collaboration, and delivering meaningful technical outcomes.

Connect Me Let's Talk

Toptal.com Qualified and available to hire in Toptal, which is the platform for the top 3% of freelance talent.
Turing.com Qualified and available to hire in Turing, who accepts only the top 1% developers out of 1.5 million+ applicant from 150+ countries.
D24.com Uruguay based remote job as a Sr. Software Engineer (Spring boot) in an international payment solution.
InveloApp.com US Based remote job as a Backend Laravel developer (Integration) in a Real-estate investor platform.
Sender.net European remote job as a Backend Developer (Laravel) in a SaaS platform of bulk Email and SMS marketing service.
dgMarket.com Backend Java developer in an eCommerce platform of Tendering & e-Procurement system.

TOP 3% TALENT

Vetted byHire me

Some of my recently worked

Projects

DMC Dreamers

Distance learning platform

dgMarket

e-Procurement platform

Directa24

International Payment Solutions

Sender.net

Email & SMS Campaign service

InveloApp.com

Real-estate investor platform

WHAT CLIENT SAYS ABOUT ME

Testimonials

Partharaj worked with my company for a 2-month assignment and in that timeframe, he displayed a high level of skill with integration development and was able to get up to speed very quickly. Partharaj is also a great person and has a positive attitude.

Justin Silverio

Founder at InveloApp, USA

Partharaj has successfully completed multiple European tech companies recruitment testing processes and has proved that his English, general communication skills as well as the technical knowledge is of world class.

Evaldas Tylas

CEO at Eastnetic, Europe

During his employment in my organization, I have found Mr. Partho has an excellent personality and professional outcomes. He has the ability to showcase his creativity that the industry offers. He delivers high quality results within a time frame and is always helpful. He likes to take initiative and is always curious.

Md. Monir Hosen

Founder & CEO, Creative IT Institute

Your support can significantly impact my work life

Get in Touch

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