Skip to content
Open to remote roles and relocation

Full stack engineer building secure, fast web products

I'm Aswin P. For more than four years I've shipped SaaS platforms, payment APIs and secure backends with React, Next.js, Node.js and PostgreSQL, owning features from architecture through to production.

View my workDownload resume

Palakkad, Kerala, India

Portrait of Aswin P

Aswin P

Full Stack Engineer

UTC+5:30
Years building production web apps
4+Years building production web apps
Faster API response times
50%Faster API response times
Less time spent debugging incidents
35%Less time spent debugging incidents
Critical regressions across 6 releases
0Critical regressions across 6 releases
  • 01React
  • 02Next.js
  • 03TypeScript
  • 04Node.js
  • 05Express
  • 06PostgreSQL
  • 07MySQL
  • 08MongoDB
  • 09AWS
  • 10Docker
  • 11Jest
  • 12GraphQL
  • 13Tailwind CSS
  • 14Razorpay

01About

I care about the parts users never see, and the ones they do.

AP

Aswin P

Full Stack Software Engineer

I like owning a feature from the database schema to the last pixel. My work has covered gym management software, a remittance portal and an HR platform, for clients and teams in India, Bahrain and the US.

Most of my work sits where product and infrastructure meet: auth flows that hold up under attack, payment webhooks that never double-charge, and queries tuned until the page feels instant. I back it all with tests so every release is predictable.

Based in
Palakkad, Kerala, India
Timezone
IST
Focus
Web apps, APIs and security
01

Security-first APIs

JWT authentication, role-based access, rate limiting and injection-safe queries, aligned with the OWASP Top 10.

  • JWT
  • RBAC
  • OWASP
02

Measurable performance

Query-plan analysis, composite indexes, HTTP caching and server rendering, with responses under 200ms under load.

  • SSR
  • Indexing
  • <200ms
03

Testing discipline

Jest unit and integration suites kept above 75% coverage, with regression testing before every release.

  • Jest
  • 75%+ coverage
  • Regression
04

Remote-ready

Comfortable working asynchronously across time zones. I write things down, own features end to end and ship on schedule.

  • Async
  • Distributed teams
  • Documentation

Education

Bachelor of Computer Science

University of Calicut2019 – 2022

Languages

  • EnglishFluent
  • MalayalamNative
  • HindiConversational

02Experience

Four years, five roles, measurable results.

FinTech, HR-Tech and SaaS, including six months working remotely with a US-based engineering team.

KurlTech Systems

Software Engineer (rejoined)

IndiaCurrent
  • Rejoined the team to stabilise and scale core modules ahead of a major release, extending Jest coverage to new features while keeping overall coverage above 75%.
  • Investigated and fixed defects spanning the UI, REST APIs and different browsers, which reduced issues reported after release.
  • Led validation of the onboarding and subscription workflows, covering feature parity, edge cases and data integrity, and ran regression passes to catch release blockers early.
  • Next.js
  • TypeScript
  • Jest
  • Regression Testing

03Selected work

Things I've built and shipped.

Production apps for real clients, plus an independent project that goes deep on payments.

Detailed walkthroughs available on request05 projects

  1. 01SaaS platform

    KurlClub Gym Management

    Gym management software that brings memberships, renewals, payments and attendance into one dashboard for gym operators.

    • React
    • Next.js
    • TypeScript
    • Redux Toolkit
    • Node.js
    • Jest
    What I did
    • Primary engineer on the React and Next.js platform across billing, payments and analytics
    • Moved key pages to server-side rendering and redesigned onboarding, making admin tasks 30% faster
    • Cut unnecessary API requests by 40% with a benchmarked Redux caching layer
    • Built a library of 20+ typed, reusable components
    Read case study

  2. 02Enterprise HR

    HR Management Platform

    An HR operations platform for a US company, where I built product interfaces and secured the authentication and API layer that protects employee data.

    • React
    • Node.js
    • JWT
    • REST APIs
    • SQL
    What I did
    • Built React interfaces for HR workflows from reusable, responsive components
    • Implemented JWT authentication, protected routes and access control
    • Hardened the API against brute-force logins and SQL injection
    • Added structured error handling and security logging
    Read case study

  3. 03FinTech

    BFC Pay Portal

    The online portal of a Bahrain-based remittance and currency exchange business, where customers check live rates and send money abroad.

    • React
    • Node.js
    • Rust
    • REST APIs
    What I did
    • Built React modules and workflows for the payment portal
    • Integrated the portal with REST APIs served by Node.js and Rust services
    • Contributed to new backend APIs, including Rust-based services
    • Refactored existing code for readability and reuse
    Read case study

  4. 04Client application

    HI5 Overseas

    A production web application for a study and work abroad consultancy, built end to end from architecture and UI design through to deployment.

    • Next.js
    • TypeScript
    • Node.js
    • PostgreSQL
    • REST APIs
    What I did
    • Designed the frontend and backend architecture around reusable services and modules
    • Built responsive interfaces and REST APIs for the core modules
    • Implemented authentication, authorization and protected routes
    • Took the application through deployment and production readiness
    Read case study

  5. 05SaaS platform

    Subscription & Payment Manager

    A subscription billing platform with tiered plans, role-based access and Razorpay payments, built to handle webhooks reliably and never apply a payment twice.

    • React
    • Node.js
    • Express
    • PostgreSQL
    • Razorpay
    • JWT
    What I did
    • Designed role-based access control for multiple user types
    • Integrated Razorpay checkout with webhook-driven payment updates
    • Verified webhook signatures and made payment handling idempotent
    • Cached frequently read data without serving stale subscription state
    Read case study
More projects on GitHub

04Toolkit

A full stack, front to back.

Six layers I work across every day, from the interface people touch down to the infrastructure it runs on.

L01Core

07
  • React
  • Next.js
  • TypeScript
  • JavaScript (ES6+)
  • Node.js
  • Express
  • REST APIs

L02Data

05
  • PostgreSQL
  • MySQL
  • MongoDB
  • Query Optimization
  • Indexing

L03Security & Auth

07
  • JWT
  • RBAC
  • OAuth
  • OWASP Top 10
  • Input Validation
  • Rate Limiting
  • SQL Injection Prevention

L04Testing

05
  • Jest
  • Unit Testing
  • Integration Testing
  • Regression Testing
  • API Testing

L05Cloud & DevOps

07
  • AWS EC2
  • AWS S3
  • Docker
  • GitHub Actions
  • GitLab CI
  • Git
  • Linux

L06Tools & Libraries

08
  • Redux Toolkit
  • TanStack Query
  • Tailwind CSS
  • GraphQL
  • Micro-frontends
  • Webpack
  • Vite
  • Figma

05Certifications

Always learning, on the record.

Courses I've completed beyond day-to-day engineering, from working with AI to running projects the agile way.

  1. A\Anthropic01

    AI Fluency: Framework & Foundations

    Anthropic's framework for working with AI effectively, efficiently, ethically and safely, built with academic partners.

    • Delegation
    • Description
    • Discernment
    • Diligence
    Issued
    Completed

    Anthropic

    AI Fluency: Framework & Foundations

    AI Fluency: Framework & Foundations certificate
  2. HPHP LIFE · HP Foundation02

    Agile Project Management

    Defining an MVP, iterative vs incremental delivery, and applying Scrum and Kanban to run projects across teams.

    • Agile
    • Scrum
    • Kanban
    • MVP
    Issued
    Feb 2026
    Credential
    1E450397

    HP LIFE · HP Foundation

    Agile Project Management

    Agile Project Management certificate
  3. HPHP LIFE · HP Foundation03

    Social Media Marketing

    Planning social media campaigns, advertising across platforms and building targeted adverts.

    • Campaigns
    • Ad Targeting
    • Analytics
    Issued
    Feb 2026
    Credential
    BF20A7F8

    HP LIFE · HP Foundation

    Social Media Marketing

    Social Media Marketing certificate
  4. A\Anthropic04

    Claude 101

    Anthropic's introductory course on working effectively with Claude in day-to-day work.

    • Prompting
    • AI Workflows
    • LLMs
    Issued
    Completed

    Anthropic

    Claude 101

    Claude 101 certificate

06Contact

Open to work

Let's build something worth shipping.

Whether you're hiring, need a contractor or want a second opinion on an idea, send a note and it comes straight to my inbox.

Email

achuaswinakshaya@gmail.com
Step 01 / 04Purpose

What brings you here?

Pick the closest option. You can add detail in your note.