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Senior Web Engineer at Kong
Bengaluru, India
Hi, I'm

Ayush Jaiswal

Building for the web asSenior Web Engineer

Senior Web Engineer with 6+ years of experience building high-performance web platforms and full-stack systems used by 150K+ daily active users across FinTech and SaaS. Specialized in Next.js, React, and Angular combining deep performance optimization and system design with AI-accelerated engineering workflows and technical team mentorship.

A bit about me

About Me

I like building software that feels simple, even when the problem behind it isn't.

Ayush Jaiswal

Ayush Jaiswal

Senior Web Engineer

Bengaluru, India
Senior Web Engineer at Kong
Philosophy & Background

Over the past 6+ years across FinTech and SaaS, I have engineered systems spanning high-traffic web applications, GraphQL APIs, and cloud infrastructure. That breadth shapes how I look at software: exceptional user experience is a holistic systems problem, and resilient backend architecture only succeeds when users can navigate it effortlessly.

My core focus centers on frontend systems architecture and web performance with end-to-end full-stack depth. I translate mission-critical business logic into interfaces that feel fast, deterministic, and obvious. Having built backend services and CI/CD pipelines, I engineer with the full network lifecycle in mind—mitigating latency, designing granular caching layers, hardening state management, and handling edge cases gracefully.

I thrive in environments where requirements are ambiguous or systems need revival: untangling legacy codebases, diagnosing performance bottlenecks, or defining scalable architectural standards. I prioritize root-cause analysis and operational simplicity over premature abstraction, building maintainable foundations that teams can iterate on without technical debt.

Outside of software, I channel that same discipline into endurance running, strength training, and exploring emerging technical domains. I believe the best engineering—and personal growth—is a compound game: showing up consistently, sweating the small details, and raising the baseline every single day.

Core Engineering Pillars

Principles tested across high-traffic production platforms
01

6+ Years of Experience

Architecting enterprise platforms across FinTech and SaaS.

02

Full-Stack Instincts

Frontend craft backed by API, cloud, and systems experience.

03

Problem-First Mindset

Understanding constraints before reaching for architectural complexity.

04

Compound Discipline

Endurance athletics and deep work built around continuous incremental gains.

Career Journey

Work Experience

Kong

Bengaluru, India
Apr 2026 – Present

Senior Web Engineer

Full-timeCurrent
Apr 2026 Present
  • Own the architecture, reliability, and delivery of Kong's public web platforms, konghq.com and insomnia.rest, end to end across application code, CMS, search, infrastructure, analytics, and localization.
  • Architected a component-driven Next.js/React platform with Payload CMS as a headless content layer, decoupling content from application code and enabling Marketing to build and publish pages without engineering involvement.
  • Designed the content and search data architecture across Payload CMS, MongoDB, and Elasticsearch, modeling content types for localized editorial workflows, indexing for site-wide search, and structuring data to support dynamic page generation at build and request time.
  • Led the migration of the web delivery stack from AWS to Vercel, redesigning deployment pipelines, edge caching, preview environments, and infrastructure-as-code (Pulumi) to modernize the release workflow.
  • Optimized critical React rendering paths and resource-loading patterns to improve Core Web Vitals (LCP, CLS, INP) and mobile performance across high-traffic marketing pages.
  • Engineered a unified analytics and marketing data layer across Segment, GTM, Marketo, and Adobe Analytics, standardizing event taxonomy and instrumentation to eliminate inconsistent tracking across the platform.
Frontend & Web:Next.jsReactTypeScriptJavaScriptCore Web VitalsWeb PerformanceHTMLSCSS
Backend & APIs:Node.jsREST APIsGraphQLPayload CMS
Data & CMS:MongoDBElasticsearch
Cloud & Infrastructure:VercelAWSPulumiGitHub ActionsJenkins
Analytics & Marketing Tech:SegmentGoogle Tag ManagerMarketoAdobe Analytics
Developer Tools:Claude CodeGitHub CopilotCodexAntigravityGit

Fidelity Investments

Bengaluru, India
Dec 2022 – Mar 2026

Lead Software Engineer

Full-time
Jan 2025 Mar 2026
  • Scaled retirement-planning and equity-compensation platforms to 150K+ users by building and shipping features end to end across Angular, NestJS, and GraphQL within an Nx monorepo containing 110+ applications.
  • Reduced API load and improved UI responsiveness by ~30% across retirement-planning workflows by moving tax-calculation logic from server-side APIs to client-side execution.
  • Defined Angular component architecture, data-flow patterns, and route-level lazy loading that became the standard template for new feature development across the team.
  • Led framework upgrades (Angular, Node.js, NestJS, Apollo) across a 110+ app Nx monorepo, resolving cross-package dependency conflicts and regressions while maintaining zero-downtime production deployments.
  • Built production observability from the ground up using Splunk, designing dashboards, alerts, and log-based reports that reduced incident diagnosis time and supported on-call root-cause analysis.
  • Established AI-assisted development workflows with GitHub Copilot and Claude Code, automating test generation, PR summaries, and architecture documentation to accelerate development feedback loops.
Frontend & Web:AngularTypeScriptJavaScriptRxJSNgRxHTMLSCSS
Backend & APIs:Node.jsNestJSExpress.jsGraphQLApollo GraphQLREST APIs
Cloud & Infrastructure:AWSDockerNxJenkins
Observability & Testing:DatadogSplunkJest
Developer Tools:Claude CodeGitHub CopilotGit

Software Engineer

Full-time
Dec 2022 Dec 2024
  • Developed and delivered financial-planning features across a 110+ app Nx monorepo, owning feature modules end to end from API integration through Angular UI to production release.
  • Refactored the Apollo GraphQL client layer to eliminate redundant queries and standardize data-fetching patterns, reducing unnecessary network requests across multiple product surfaces.
  • Built accessible, WCAG 2.1 AA-compliant Angular components for financial-planning workflows, supporting cross-browser and cross-device reliability for retail and institutional users.
  • Achieved 100% Jest test coverage across owned feature modules, enabling automated validation of complex financial-calculation logic and reducing manual regression cycles.
Frontend & Web:AngularTypeScriptJavaScriptRxJSNgRxHTMLSCSS
Backend & APIs:Node.jsNestJSExpress.jsGraphQLApollo GraphQLREST APIs
Cloud & Infrastructure:AWSDockerNxJenkins
Observability & Testing:DatadogSplunkJest
Developer Tools:Git

Mindtree

Bengaluru, India
Sep 2020 – Dec 2022

Senior Software Engineer

Full-time
Jun 2022 Dec 2022
  • Engineered interactive analytics dashboards for P&G's Trade Promotion Management platform, including campaign ROI simulation, forecasting visualizations, and stock-reconciliation workflows using AG Grid, Highcharts, and D3.js.
  • Published 4 internal npm packages encapsulating reusable UI components and region-specific business logic, standardizing frontend architecture across project teams.
  • Owned production release workflows end to end, from build verification through staged rollout and QA sign-off, establishing a controlled deployment process for the client's enterprise environment.
  • Implemented toggle-based feature delivery to support incremental production releases, isolating rollout risk and enabling continuous delivery to multi-region P&G environments.
Frontend & Web:AngularTypeScriptJavaScriptAG GridHighchartsD3.jsHTMLSCSS
Backend & APIs:Node.jsExpress.js
Cloud & Infrastructure:AzureJenkins
Testing & Developer Tools:JestGit

Software Engineer

Full-time
Sep 2020 Jun 2022
  • Built promotion-planning and demand-forecasting features for P&G's Trade Promotion Management platform, implementing region-specific business workflows across multiple market configurations.
  • Refactored legacy Angular modules to reduce structural complexity, decomposing monolithic components into well-bounded feature modules that improved code navigability and reduced onboarding friction for new engineers.
  • Developed data-visualization components using D3.js and Highcharts to render campaign analytics and forecasting data, handling large tabular datasets through AG Grid with virtual scrolling and dynamic filtering.
Frontend & Web:AngularTypeScriptJavaScriptAG GridHighchartsD3.jsHTMLSCSS
Backend & APIs:Node.jsExpress.js
Cloud & Infrastructure:AzureJenkins
Testing & Developer Tools:JestGit

Dhanaina Technologies

Bengaluru, India
Feb 2019 – May 2019

Frontend Developer

Internship
Feb 2019 May 2019
  • Built the company homepage from scratch using Angular, delivering the project from initial implementation through production deployment.
  • Integrated RESTful backend services and shipped responsive, cross-browser frontend features end to end, owning implementation, testing, and release for a production-facing application.
Frontend & Web:AngularTypeScriptJavaScriptHTMLCSSSCSS
Backend & APIs:Node.jsExpress.jsREST APIs
Testing & Developer Tools:JestGit
What I work with

Skills & Technologies

Frontend & Web Platform

13 skills
Next.jsReactAngularTypeScriptJavaScriptRxJSNgRxHTML5CSS3SCSSAG GridHighchartsD3.js

Backend & APIs

6 skills
Node.jsNestJSExpress.jsGraphQLApollo GraphQLREST APIs

Data, Search & CMS

3 skills
MongoDBElasticsearchPayload CMS

Cloud & Infrastructure

8 skills
AWSVercelAzureDockerPulumiCI/CDGitHub ActionsJenkins

Architecture & Performance

6 skills
System DesignWeb PerformanceCore Web VitalsCode Splitting & Lazy LoadingWeb Accessibility (WCAG)Nx Monorepo Architecture

Testing & Observability

3 skills
JestDatadogSplunk

Analytics & Marketing Tech

4 skills
SegmentGoogle Tag ManagerAdobe AnalyticsMarketo

Developer Tools & AI Workflows

6 skills
GitClaude CodeGitHub CopilotCursorCodexAntigravity
Things I've built

Projects

KongHQ
Konglive

KongHQ

Architected Kong's public web platform as a decoupled Next.js/React application backed by Payload CMS, MongoDB, and Elasticsearch, achieving sub-second global edge delivery via Vercel and enabling non-technical teams to publish content autonomously.

Next.jsReactTypeScriptPayload CMS+9
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Insomnia
Konglive

Insomnia

Engineered the official web platform for Insomnia (Kong's open-source API design tool), extending a unified Next.js/Payload CMS architecture to power developer documentation, software downloads, full-text search, and multi-region localization for millions of users.

Next.jsReactTypeScriptPayload CMS+5
Read More
Equity Compensation Planner
Fidelity Investmentsinternal

Equity Compensation Planner

Architected mission-critical modules for Fidelity's Equity Compensation Planner serving 276K+ global participants in a 110+ app Nx monorepo, implementing client-side tax simulation and real-time modeling for RSUs, ESPPs, and stock options via Angular, NestJS, and GraphQL.

AngularTypeScriptNestJSNode.js+8
Read More
Planning & Guidance Center
Fidelity Investmentsinternal

Planning & Guidance Center

Scaled Fidelity's Planning & Guidance Center for 150K+ daily active users, developing interactive retirement simulation and goal-planning engines using Angular, NestJS, and Apollo GraphQL with client-side tax logic that slashed server API calls by 30%.

AngularTypeScriptNestJSNode.js+8
Read More
Voice-Controlled FinTech Prototype
Fidelity Investmentsprototype

Voice-Controlled FinTech Prototype

Prototyped an accessibility-first voice-navigation interface for financial dashboards using the Web Speech API, Angular, and RxJS, enabling hands-free execution of retirement scenarios and data visualizations for motor-impaired users.

AngularTypeScriptRxJSWeb Speech API+3
Read More
Trade Promotion Management
Procter & Gambleinternal

Trade Promotion Management

Engineered high-throughput enterprise analytics interfaces for P&G's Trade Promotion Management platform, delivering real-time campaign ROI simulations, demand forecasting, and inventory reconciliation via Angular, AG Grid, D3.js, and Highcharts across multi-currency regional markets.

AngularTypeScriptNode.jsExpress.js+6
Read More
NPM Package Version Updater
Personalopen source

NPM Package Version Updater

Authored an open-source Node.js CLI to automate semantic versioning and package dependency synchronization, eliminating manual release overhead and seamlessly integrating into automated CI/CD deployment pipelines.

Node.jsTypeScriptCLInpm Registry API+1
Read More
Angular Jest Scaffolder
Personalopen source

Angular Jest Scaffolder

Developed an open-source CLI scaffolding tool that automates enterprise Angular migrations from Karma to Jest, generating AST transforms, module path mappings, and mock configurations to eliminate manual setup overhead.

Node.jsAngularJestTypeScript+1
Read More
Driver Fatigue Detection System
Personalopen source

Driver Fatigue Detection System

Engineered a real-time computer-vision safety system using Python, OpenCV, and dlib to detect driver drowsiness from facial landmarks, computing Eye Aspect Ratio (EAR) from live video feeds to trigger low-latency audio-visual alerts.

PythonOpenCVdlibComputer Vision+1
Read More
Credentials

Certifications

AnthropicMar 2026

Claude Code in Action

ID: javixfa9p8e3
Claude CodeAI-Assisted DevelopmentPrompt Engineering
Verify Credential
Apollo GraphQLMar 2024

Graph Developer - Associate

ID: 68bc4391-081f-4f6b-8461-507632b7ed3d
GraphQLApollo ServerApollo ClientSchema Design
Verify Credential
Apollo GraphQLApr 2024

Graph Developer - Professional

ID: cdf4e273-b803-49e8-adf8-b2c79af4c552
GraphQLApollo FederationSupergraph ArchitectureSchema Design
Verify Credential
University of HelsinkiSep 2020

Elements of AI

ID: n2tmd9y4f2s
Artificial IntelligenceMachine LearningNeural Networks
Verify Credential
CourseraJul 2020

Getting Started with AWS Machine Learning

ID: 7UFNNLB8ZUR9
AWSMachine LearningCloud Computing
Verify Credential
Research

Publications

Test Engineering and ManagementMay 2020

Electronic Voting System Based on Blockchain Technology

View Publication

Architected a decentralized electronic voting protocol leveraging blockchain consensus and cryptographic verification to eliminate electoral tampering, guaranteeing immutable ballot integrity, voter privacy, and transparent auditability.

BlockchainDistributed SystemsCryptographyDecentralized Architecture
International Journal of Engineering and Advanced Technology (IJEAT)May 2019

Fatigue Detection System Based on Eye Blinks of Drivers

View Publication

Designed and evaluated a real-time driver fatigue monitoring system utilizing computer vision and Eye Aspect Ratio (EAR) computation from live camera streams, triggering instant alerts upon detecting sustained ocular closures.

Computer VisionEye Aspect Ratio (EAR)Real-Time DetectionFacial Landmarks
What people say

Testimonials & Recommendations

1 of 7

I had the pleasure of working with Ayush at Fidelity, and I would highly recommend him as a strong full-stack engineer and an excellent team player. Ayush made significant contributions across several initiatives, working extensively with Angular, GraphQL, Node.js, JavaScript, and TypeScript. His ability to take ownership of major features, deliver them within timelines, and maintain a high standard of quality consistently stood out. Beyond development, Ayush actively contributed to Jenkins and CI/CD enablement, helping empower others and improve engineering practices across the team. He also played an important role in establishing and sharing prompt engineering guidelines, generously guiding and supporting colleagues as they adopted new approaches. What I particularly appreciated was his willingness to help others. He is approachable, collaborative, and always ready to step in when someone needs support. His combination of strong technical expertise, ownership, and a genuine desire to enable others makes him a valuable asset to any engineering team. I’m confident Ayush will continue to make a meaningful impact wherever he works next. I highly recommend him and wish him continued success!

Sumedh Bahatkar

Lead Engineer at Fidelity Investments

Worked with Ayush on the same team
Let's talk

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Open to technical discussions, open-source engineering, and architecture exchange.

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Senior Web Engineer at Kong
Bengaluru, India

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