Ashwini Kumar

Hi, I'm Ashwini.

I build software for problems that touch people's everyday lives.

Backend engineer in Pune, with five years of building systems that quietly do their job. I care most about problems close to home, here in India.

How it started Say hello

2020, the lockdown

It started with one housing society.

When the country shut down, buying groceries turned into a daily risk. Every trip to the shop meant queues, crowds and worry, multiplied across hundreds of families in my society alone.

So I built a small hyperlocal marketplace for us. Residents placed their orders online. The society committee pooled them and worked with nearby shops to fulfil everything in bulk, with as little contact as possible.

It wasn't complex software. But it showed me that code is most powerful when it helps people take care of each other.

  1. 1
    Residents orderfrom home, on their phones
  2. 2
    The committee pools ordersone list instead of hundreds of trips
  3. 3
    Local shops fulfil in bulkneighbourhood businesses stay open
  4. 4
    Delivered at the gateminimal contact, everyone stays safe
Ashwini Kumar

What I believe

I've come to think we rarely lack the resources or the talent to fix things. What's usually missing is someone who cares enough to build for the people living with the problem.

So I'm drawn to problems you can feel in daily life: getting essentials home, money that quietly goes missing, a fair shot at opportunity.

Day to day, I build distributed, cloud-native systems in Go, Java and SQL across AWS, Azure and GCP, and I like owning things end to end, from design to production.

Some things I've worked on

A few pieces of work I'm glad exist, mostly because of the time or money they saved someone.

  • Billing that finishes in 5 minutes instead of 20

    Boxtalk.ai, via TechVerito

    Moved a Go billing engine into Azure SQL stored procedures for a multi-tenant 3PL platform, cutting runtime about 4× and retiring a separately deployed service.

  • Thousands of dollars recovered every month

    Boxtalk.ai, via TechVerito

    Co-designed a recovery engine that reconciles carrier and warehouse data to catch billing discrepancies, and owned the Terraform infrastructure behind it.

  • Invoices generated about 90% faster

    Boxtalk.ai, via TechVerito

    Designed fingerprint-based cache invalidation with incremental batch refresh, so only what changed gets recomputed.

  • Shipment reports that process themselves

    Boxtalk.ai, via TechVerito

    An event-driven pipeline from Gmail through GCP Pub/Sub, Azure Functions and Container Apps Jobs, with deduplication, email-to-tenant mapping and tenant-isolated storage.

  • A voice agent that helps recruiters find people faster

    TechVerito, internal AI

    Evaluates résumés against job descriptions, runs outbound screening calls and schedules interviews, backed by a RAG knowledge base over call recordings using Whisper and pgvector.

  • Payment APIs behind $30B+ in digital transactions

    Verifone, Bengaluru

    Built high-performance Java REST APIs for payment infrastructure and payment modules for new regional markets, enabling 3M additional transactions.

  • 60% less manual work for delivery teams

    Shree Siddhi Service

    Spring Boot microservices that automate Azure DevOps story creation, plus a monolith-to-microservices migration on Docker, ECS and SQS.

The road so far

  1. A marketplace for my society

    The lockdown project that made me want to build for people.

  2. B.E. Computer Engineering, then Xoriant

    Graduated from Sinhgad Institute of Technology. Automated AWS provisioning with Terraform.

  3. Software Developer, Verifone

    Payment infrastructure at national scale, from Bengaluru.

  4. Senior Backend Developer, Shree Siddhi Service

    Led a move to microservices and built GenAI backend services. Became an Oracle Certified Java Professional.

  5. Consultant, TechVerito

    Owning billing, recovery and AI systems for a multi-tenant logistics SaaS. Became an AWS Certified Solutions Architect.

  6. Still figuring that out

    Hopefully something useful, with good people.

What I build with

Languages
Go, Java, SQL
Backend
Spring Boot, REST APIs, microservices, JPA/Hibernate, Spring Security
Distributed systems
Event-driven architecture, Pub/Sub, SQS, SSE, async processing, multi-tenancy
Data
Azure SQL, SQL Server, PostgreSQL, stored procedures, pgvector
Cloud
AWS, Azure Functions and Container Apps, GCP Pub/Sub, Docker, Kubernetes, Terraform
AI systems
LLMs, RAG, embeddings, Whisper, voice and AI agents

Say hello

If you'd like to build something together or have an opportunity in mind, I'd be happy to hear from you.

Email me Download résumé (PDF)