Avinash Varpeti — Senior Software Engineer

About

The engineer
behind the code

I'm a Senior Software Engineer at Travelex, building the financial infrastructure that moves money across borders. I don't just write features — I architect systems that survive edge cases, scale under pressure, and don't wake anyone up at 3am.

My work spans from pixel-perfect frontend components to event-driven backends handling high-volume FX transactions. I've led teams, shipped SaaS products from zero to thousands of users, and reduced production incidents by modelling business rules into the platform itself.

I believe understanding the why behind the what is what separates engineers who build fast from engineers who build right — and I aim to be both.

System Thinker FX / Fintech Team Lead Agile / Scrum AI-Augmented Dev DDD Performance

1const engineer = {
2  name: "Avinash Varpeti",
3  role: "Senior Software Engineer",
4  location: "Mumbai, IN",
5  current: "Travelex",
6  stack: [
7    "React", "Next.js", "Node.js",
8    "MongoDB", "AWS", "Docker"
9  ],
10  speciality: "systems that scale",
11  philosophy: "understand it in and out",
12  education: "B.E. IT · CGPA 8.0"
13};

14// open to: { fulltime, contracts }

Experience

Where I've
built things

Senior Software Engineer

Travelex

Nov 2024 — Present
Mumbai, India
Current

Led redesign of the bank notes calculation module (FX rates, fees, edge-case rounding), reducing reconciliation discrepancies by 35% and cutting manual adjustment time by 40%.
Architected an event-driven backend for high-volume FX transactions using Node.js and domain-driven data models — improving system throughput by 50% and reducing peak-time latency by 30%.
Designed a modular frontend architecture for complex LEG and workflow components, cutting duplicate code by 25% and shortening feature delivery cycles by 20%.
Collaborated with product, QA and compliance to model bank note business rules into the platform, decreasing production incidents related to calculation logic by 30%.
Leveraged AI coding assistants (GitHub Copilot) to accelerate delivery of critical flows by 20–25% while maintaining code quality via reviews and automated tests.

35% Fewer Errors

50% More Throughput

30% Less Latency

40% Ops Time Saved

Full Stack Developer

Stealth Global

Jan 2023 — Nov 2024
Mumbai, India

Built a SaaS product from scratch using Next.js, Node.js, Express, MongoDB and AWS — attracting 1,000+ users within 2–3 months of launch.
Led a team of 4–5 engineers, improving sprint efficiency by 20% and ensuring 100% on-time delivery through Agile practices.
Developed a custom frontend JS module for Five Palm Jumeirah (Dubai), targeting a 15% conversion uplift and reducing booking flow errors by 30%.
Collaborated with UX/UI teams to identify feasible use cases early, saving the client 20% in development costs and cutting development time by 25%.

1000+ Users Acquired

100% On-time Delivery

20% Sprint Efficiency

Frontend Developer

Koyal Tech

Jun 2021 — Dec 2022
Mumbai, India

Developed and optimized frontend apps for healthcare patient portals using React, Next.js and Redux — improving user engagement by 25% and reducing drop-off rates by 20%.
Led performance optimization efforts, reducing load times by 40% and achieving a 30% improvement in user satisfaction.
Built a reusable Patient Component Library, standardising UI components and cutting development time by 30% while improving consistency.
Delivered integrations with zero critical bugs at launch and reduced support queries by 20%.

40% Faster Load

0 Critical Bugs

30% Less Dev Time

Skills

The full
stack picture

Frontend · 3+ yrs

UI Engineering

JavaScript · React · Next.js
HTML5 · CSS3 · Sass
Tailwind CSS · Redux

Backend · 4+ yrs

Systems & APIs

Node.js · Express.js
MongoDB · REST APIs
Event-driven arch · DDD

DevOps · 3+ yrs

Infra & Deploy

Git · Docker · AWS
CI/CD · GitHub Actions
AWS CodeBuild · Observability

AI & Productivity

AI-Powered Dev

GitHub Copilot · Prompt Eng.
AI-assisted refactoring
Test gen · Documentation

✦

Impact

Numbers that
matter

⚡

50% System Throughput Gain

Re-architected Travelex's FX transaction backend with event-driven patterns and domain-driven data models — halving bottlenecks under peak load.

50%

🎯

35% Fewer Reconciliation Errors

Redesigned the bank notes calculation module with airtight FX rate logic, fee handling, and edge-case rounding — cutting ops team interventions by 40%.

35%

🚀

1000+ Users in 3 Months

Built a full SaaS product from scratch with zero to thousands of users in under a quarter — architecting for SEO, performance, and rapid iteration.

1K+

🏗️

Zero Critical Bugs at Launch

Shipped healthcare patient portals with full frontend–backend integration, reusable component libraries, and a 30% improvement in satisfaction metrics.