Rajendra Uppal — CTO

Rajendra builds and leads strong engineering teams. He focuses on products users enjoy using.He has spent 8+ years building B2B SaaS and enterprise products, from early stage ideas to scaled platforms.Highlights:→ Applied AI to improve engineering speed and output.→ Set up and grew engineering organizations from the ground up.→ Built products from 0 to 1 and scaled them from 1 to 10 at B2B SaaS startups.→ Led teams of 5 to 30 engineers across front end, back end, QA, DevOps, and SRE.Most of his work has been with Series B and C B2B startups. Team sizes ranged from small core groups to 30 engineers. He has led full stack development, front end migrations from Angular to React, and backend shifts from monoliths to microservices. He has also driven large re-architecture efforts across backend systems and cloud platforms.Earlier, he worked on Microsoft Viva, improving employee engagement and OKR features. At Adobe, he built core components of Adobe Creative Cloud and received multiple awards for his work.Currently, he is building a minimalist project management software at 5day.io, leading a team of 30 engineers.He enjoys solving hard technical problems and building teams which deliver consistently. He shares practical insights on AI, coding, software architecture, and engineering management.Rajendra has been a polyglot programmer. He has written production code in Python, Java, JavaScript, TypeScript, Go, C, C++, VB .NET, C# .NET, Ruby, PHP, Perl.He spends his free time learning new AI tools and technologies like Vector Databases.He enjoys playing snooker. He likes thoughtful conversations on startups, business, and technology.His all social links are here: https://linktr.ee/ruppalEmail: rajen.iitd at gmail dot com

Stackforce AI infers this person is a SaaS Engineering Leader with extensive experience in AI and team management.

Location: Gurugram, Haryana, India

Experience: 16 yrs 6 mos

Skills

Engineering Management
Software Development
Software Architecture
Generative Ai
Technology Leadership

Career Highlights

Built AI Agents to enhance engineering productivity.
Led engineering teams of up to 30 across multiple domains.
Transformed backend systems for significant performance improvements.

Work Experience

5day.io

Head of Engineering (10 mos)

topmate.io

Mentor (1 yr 11 mos)

Pulse Labs

Director of Engineering (2 yrs)

Microsoft

Senior Software Engineering Manager (1 yr 4 mos)

WorkSpan

Engineering Manager (1 yr 2 mos)

inFeedo

AVP Engineering (7 mos)

Zykrr

Sr. Software Architect (2 yrs 5 mos)

Delhivery

Engineering Manager (10 mos)

Technical Lead (9 mos)

Adobe

Senior Member of Technical Staff (2 yrs 9 mos)

EFI

Senior Software Engineer (1 yr 3 mos)

Canon

Senior Software Engineer (9 mos)

ARI

Software Engineer (1 yr 10 mos)

Education

Master of Technology - MTech at Indian Institute of Technology, Delhi

Master of Science - MS at M. D. S. University, Ajmer

GATE at Indian Institute of Technology, Kharagpur

NET (JRF) at CSIR

Research Fellow at Indian Institute of Technology, Kanpur

NET (JRF) at UGC

Rajendra Uppal

CTO

Gurugram, Haryana, India16 yrs 6 mos experience

AI EnabledAI ML Practitioner

Key Highlights

Built AI Agents to enhance engineering productivity.
Led engineering teams of up to 30 across multiple domains.
Transformed backend systems for significant performance improvements.

Stackforce AI infers this person is a SaaS Engineering Leader with extensive experience in AI and team management.

Contact

rajendra.uppal@5day.io LinkedIn

Skills

Core Skills

Engineering ManagementSoftware DevelopmentSoftware ArchitectureGenerative AiTechnology Leadership

Other Skills

AI AgentsAI frameworksAWSAgile MethodologiesAlgorithmsAmazon Web Services (AWS)Angular 17Artificial Intelligence (AI)B2BB2CBusinessCC++CXCode Review

About

Experience

16 yrs 6 mos

Total Experience

1 yr 6 mos

Average Tenure

10 mos

Current Experience

5day.io

Head of Engineering

Aug 2025 – Present · 10 mos · Gurugram, Haryana, India · Remote

Leading a team of 30 engineers to build minimalist distraction-free project management B2B SaaS platform 5day.io
Built AI Agents (Keyword Research Agent, Social Media Agent, Blog Creation Agent) using n8n, OpenAI API, Milvus
Tech Stack: Java 17, Angular 17, PostgreSQL, MongoDB, Redis, AWS

Engineering LeadershipEngineering ManagementHigh Performance TeamsSoftware ArchitectureSoftware Development

Topmate.io

Mentor

Jul 2024 – Present · 1 yr 11 mos · Gurugram, Haryana, India · Remote

Pulse labs

Director of Engineering

Jan 2023 – Jan 2025 · 2 yrs · Gurugram, Haryana, India · Remote

Led the technical road map across AI, back end, and mobile, aligning with product and business objectives.
Architected and Built AI Summarization and insights tool from scratch.
Hands-on experience working with AI frameworks, hugging face, NLP, or LLM-based features—understanding how to deploy and optimize models in a production environment.

High Performance TeamsSoftware DevelopmentSoftware ArchitectureEngineering ManagementGenerative AILarge Language Models (LLM)+1

Microsoft

Senior Software Engineering Manager

Sep 2021 – Jan 2023 · 1 yr 4 mos · Gurugram, Haryana, India · Remote

Owned the product roadmap, customer feature requests, and quality enhancements for Microsoft Viva, focusing on Viva Goals to manage OKRs, enhancing employee experience and engagement for a high-impact platform.
Directed a team of 15 engineers (SDE 1 to SDE 3), including frontend, backend, and full-stack developers, along with 1 tech lead, 1 architect, and 1 tech lead manager, driving technical execution and innovation.
Domain: HRTech, People Predictive Analytics, Employee Engagement, B2B, SaaS
Tech Stack: React, Node.js, Postgres, MongoDB, Redis, Kafka, Azure, Heroku

Distributed SystemsHigh Performance TeamsSoftware DevelopmentTechnology LeadershipSoftware ArchitectureEngineering Management+1

Workspan

Engineering Manager

Jul 2020 – Sep 2021 · 1 yr 2 mos · Gurgaon, Haryana, India · Remote

Transformed Customer Data Backend (180x Impact): Revamped the customer data integrations backend from Python to Java (Spring Boot) and migrated from NoSQL to PostgreSQL, achieving an ~180x performance boost, significantly enhancing system efficiency.
Overhauled Reporting Backend (100x Impact): Redesigned the reporting backend from Python to Java (Spring Boot) and shifted from NoSQL to PostgreSQL, delivering an ~100x performance improvement, streamlining data processing and reporting capabilities.
Led Data Quality Turnaround (100% Bug Reduction): Directed a cross-functional team of 8 engineers across pods for data reconciliation and cleanup, eliminating all data quality-related bugs, securing the renewal of the company’s biggest customer.
Domain: B2B SaaS, Sales and Marketing Software
Tech Stack: Java, Python, Golang, Angular, Postgres, GCP

Go (Programming Language)Distributed SystemsSystem ArchitectureHigh Performance TeamsCode ReviewSoftware Development+5

Infeedo

AVP Engineering

Aug 2019 – Mar 2020 · 7 mos · Gurgaon, India · On-site

Role and Responsibilities:
● Design, Architecture, Code Reviews, Cloud Infra, Team Management, Hiring
● DOMAIN: HRTech, People Predictive Analytics, Employee Engagement, SaaS, B2B, AI Chatbot, NLP
● TECH STACK: AngularJS, React, Node.js, Express, MySQL, MongoDB, Redis, AWS
● Led a team of 20 engineers and 3 tech leads
● Scale, Performance, Security, Standards Compliance (GDPR, SOC2 T2, Internal Security)

Distributed SystemsSystem ArchitectureHigh Performance TeamsCode ReviewSoftware DevelopmentSpring Boot+5

Zykrr

Sr. Software Architect

Mar 2017 – Aug 2019 · 2 yrs 5 mos · Gurgaon, India · On-site

Role and Responsibilities:
● Design, Architecture, Coding, Cloud Infra, Client Management, Team Management, Hiring
● DOMAIN: Feedback Management, Consumer Experience, SaaS, B2B, Analytics, NLP
● TECH STACK: AngularJs, Node.js, Python, REST APIs, PostgreSQL, MongoDB, Redis, AWS, Azure
● Led a team of 10 engineers

Distributed SystemsSystem ArchitectureHigh Performance TeamsCode ReviewSoftware DevelopmentSoftware Architecture+3

Delhivery

2 roles

Engineering Manager

Apr 2016 – Feb 2017 · 10 mos · Gurgaon, India · On-site

Key Accomplishments:
● Build and manage a team of 9 engineers and 1 tech lead.
● Design and build data and algorithm driven web application NetPlan for network planning.
● Design and build a distributed system VRS (Vehicle Routing System).
● Regular peer code reviews.
● Responsible for software design and architecture, web applications, REST APIs, distributed systems.
● Managing daily scrums and bi-weekly sprint plannings.
● Product management, working with cross-functional teams.
● Work with UI/UX design team for our web applications.
● Contribution to address segmentation and category identification services.
● Contribution, help and support to all the products being developed by the whole team.
● Heavy contribution on identify, interview and hire software developers, team leads and architects for complete tech team.
● Initiating and managing knowledge sharing sessions within the team.
● Instil software engineering best practices in the team.
Technologies:
Python, Flask, Django, Java, C++, Redis, RabbitMQ, MongoDB, AWS, Ubuntu.

Distributed SystemsSystem ArchitectureHigh Performance TeamsCode ReviewSoftware DevelopmentThird-Party Logistics (3PL)+4

Technical Lead

Jun 2015 – Mar 2016 · 9 mos · Gurgaon, India · On-site

Key Accomplishments:
● Build and manage a team of 5 engineers.
● Design and build data and algorithm driven web application NetPlan for network planning.
● Responsible for software design and architecture of web applications.
● Regular peer code reviews.
● Managing daily scrums and bi-weekly sprint plannings.
● Product management, working with cross-functional teams.
● Work with UI/UX design team for our web applications.
● Heavy contribution on identify, interview and hire software developers, team leads and architects for complete tech team.
● Initiating and managing knowledge sharing sessions within the team.
● Instil software engineering best practices in the team.
Technologies:
Python, Flask, Django, MongoDB, HTML, CSS, JavaScript, jQuery, semantic-ui framework, AWS, Ubuntu, Linux.

Distributed SystemsSystem ArchitectureHigh Performance TeamsCode ReviewSoftware DevelopmentThird-Party Logistics (3PL)+4

Adobe

Senior Member of Technical Staff

May 2012 – Feb 2015 · 2 yrs 9 mos · Noida Area, India · On-site

Key Accomplishments:
● Development of Adobe Creative Cloud and OOBE suite of products.
● Grabbed 3 awards (2 Special Contribution and 1 Bravo) for exceptional performance.
Technologies:
C++, STL, Python, Perl, Git, Perforce, Visual Studio 2008/2010/2012, Xcode 4.5, Mac OSX 10.8/10.9, Windows 7, Windows 8

Distributed SystemsSoftware DevelopmentSoftware ArchitecturePython

Efi

Senior Software Engineer

Feb 2011 – May 2012 · 1 yr 3 mos · Bengaluru Area, India · On-site

Key Accomplishments:
● Development of kiosk application SendMe which enables customers to print a document to various places like, network share, various document management systems and nearest MFP (multifunction printer).
Technologies:
C++, STL, wxWidgets, Perl, Microsoft SharePoint, Ricoh Document Management System, Visual Studio 2005/2008, Windows XP/7/8

Software Development

Canon

Senior Software Engineer

Apr 2010 – Jan 2011 · 9 mos · Noida Area, India · On-site

Key Accomplishments:
● Designed and developed XML security SDK in C++ to enable clients to put digital signatures in OpenOffice and Microsoft Office documents.
Technologies:
C++, STL, Apache xerces, Apache XML security library, Visual Studio 2008, Windows 7

Software Development

Ari

Software Engineer

Jun 2008 – Apr 2010 · 1 yr 10 mos · New Delhi, Delhi, India · On-site

Key Accomplishments:
● Development of Radar Simulator using C++.
● Built VB6 based desktop application on top of Radar Simulator.
● Built a Resource Manager desktop application using C++, MFC (Microsoft Foundation Classes) library and reduced resources size used by the simulator by 90%.
● Built a VB .NET based desktop application acting for hardware-software integration for Crane simulator.
● Built IRIS (Information Retrieval and Interaction System), an e-learning desktop application using C# .NET as an integration of all simulators (Radar, ECDIS chart, Ship Manoeuvring) for training to ship cadets about different scenarios happen in sea.
● Built SimCommander application using C++ and MFC to manage simulation machines remotely and hence reducing manual efforts by 90%.
Technologies:
C++, STL, VB .NET, C# .NET, MFC, COM, ActiveX, Visual Studio 2008, Windows XP

Software Development