Engineering Leadership · SaaS Architecture

Ashwin Sathian

Engineering leader building scalable SaaS systems powering $1B+ GTV.

I help teams ship complex SaaS faster, cleaner, and saner.

About

Purpose & Proof

I’m an engineering leader who makes complex SaaS programs feel calm, intentional, and fast. I coach squads to own outcomes end-to-end, shaping architecture choices around customer journeys while keeping product, design, and delivery tightly aligned.

Across 7+ years I’ve scaled modular Angular, Next.js, and NestJS platforms that move millions of records and ~$1B+ GTV. My playbook leans on clean architecture, multi-tenant guardrails, enterprise RBAC, and CI/CD habits that keep releases predictable and latency under 200 ms.

Highlights

Signals of impact

$1B+ GTV safeguarded

Scaled the core procurement platform

Architected a modular, multi-tenant SaaS backbone handling millions of procurement records without downtime.

1.5× faster releases

Accelerated delivery without chaos

Streamlined delivery rituals and CI/CD pipelines so squads ship predictably and confidently.

<200 ms critical queries

Standardized performance guardrails

Codified performance patterns that keep customer-critical interactions snappy even as data scales.

12 engineers mentored

Led and scaled a high-trust engineering team

Built an inclusive, growth-minded culture that turned ambitious roadmaps into calm execution.

Top Projects

Selected repos

@ngx-runtime-i18n

AshwinSathian/ngx-runtime-i18n

A modern runtime internationalisation library for Angular 16+. Fully compatible with SSR and hydration. Features include fallback chains, persistent catalog caching, and developer-friendly helpers — all powered by signals.

Updated Nov 14, 2025

API Sandbox

AshwinSathian/apiSandbox

A REST API interrogation developed in Angular

Updated Nov 7, 2025

Skills

Systems & tooling

Frontend

Angular

React

Next.js

Backend & Services

Node.js

NestJS

Express

Data & Persistence

MongoDB

AWS DynamoDB

Cloud & DevOps

AWS

GCP

Docker

GitHub Actions

Languages

TypeScript

JavaScript

Python

HTML/CSS

Productivity & QA

Git

Postman

Jira

CI/CD

Experience

Impact by role

Lead Engineer

Penny Software

Jan 2024 – Aug 2025

Stabilized $1B+ procurement flows at <200 ms latency.

Directed Angular + NestJS + MongoDB architecture for a modular procurement SaaS serving millions of records.
Standardized multi-tenant RBAC, tenancy isolation, and compliance-ready audit trails.
Mentored a 12-person squad across frontend, backend, and QA, raising review rigor and delivery confidence.

Product Specialist

Penny Software

Apr 2022 – Dec 2023

Lifted release cadence by ~1.5× across squads.

Owned end-to-end feature lifecycles, translating procurement pains into measurable product outcomes.
Optimized APIs and queries, cutting response times by 40%+ while preserving stability.
Coordinated product, QA, and engineering rhythms to keep launches iterative and low-risk.

Full Stack Developer

Penny Software

Jun 2020 – Mar 2022

Expanded SaaS modules without sacrificing uptime.

Shipped features across frontend and backend while preserving platform uptime targets.
Modularized the frontend stack and introduced lazy-loaded workspaces for scale.

Senior Full Stack Developer

Manaraah

Jan 2020 – Jun 2020

Delivered cloud-native business apps on tight timelines.

Translated ambiguous requirements into maintainable, production-grade features.
Partnered with stakeholders to de-risk deployments and support adoption.

Software Development Engineer

WeCP

Jan 2019 – Jan 2020

Strengthened a SaaS assessments platform serving global customers.

Enhanced onboarding flows and stabilized critical evaluation journeys.
Guided interns and juniors through architecture, reviews, and delivery.

Junior Programmer

Reubro International

Aug 2018 – Jan 2019

Improved reliability of a flagship SaaS capability.

Shipped incremental enhancements while learning enterprise release discipline.

Jan 2024 – Aug 2025

Lead Engineer

Penny Software

Stabilized $1B+ procurement flows at <200 ms latency.

Directed Angular + NestJS + MongoDB architecture for a modular procurement SaaS serving millions of records.
Standardized multi-tenant RBAC, tenancy isolation, and compliance-ready audit trails.
Mentored a 12-person squad across frontend, backend, and QA, raising review rigor and delivery confidence.

Apr 2022 – Dec 2023

Product Specialist

Penny Software

Lifted release cadence by ~1.5× across squads.

Owned end-to-end feature lifecycles, translating procurement pains into measurable product outcomes.
Optimized APIs and queries, cutting response times by 40%+ while preserving stability.
Coordinated product, QA, and engineering rhythms to keep launches iterative and low-risk.

Jun 2020 – Mar 2022

Full Stack Developer

Penny Software

Expanded SaaS modules without sacrificing uptime.

Shipped features across frontend and backend while preserving platform uptime targets.
Modularized the frontend stack and introduced lazy-loaded workspaces for scale.

Jan 2020 – Jun 2020

Senior Full Stack Developer

Manaraah

Delivered cloud-native business apps on tight timelines.

Translated ambiguous requirements into maintainable, production-grade features.
Partnered with stakeholders to de-risk deployments and support adoption.

Jan 2019 – Jan 2020

Software Development Engineer

WeCP

Strengthened a SaaS assessments platform serving global customers.

Enhanced onboarding flows and stabilized critical evaluation journeys.
Guided interns and juniors through architecture, reviews, and delivery.

Aug 2018 – Jan 2019

Junior Programmer

Reubro International

Improved reliability of a flagship SaaS capability.

Shipped incremental enhancements while learning enterprise release discipline.

Education

Foundations

National Institute of Technology Calicut
B.Tech. | Electronics & Communication Engineering
2014 – 2018

Contact

Let's build something remarkable.