Available for new opportunities

Hi, I'm Ajay Singh Taknet

I buildscalable fintech systems|

Backend Software Engineer with 3.5+ years of experience crafting production-grade bond trading platforms, payment systems, and scalable APIs serving 400,000+ customers. I obsess over system design, code quality, and building things that just work.

3.5+Years Experience
400K+Customers Served
99.9%Financial Accuracy
const engineer = {
  name: "Ajay Singh",
  focus: "Backend & Fintech",
  passion: "System Design"
};
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About Me

Engineer who believes great software starts with great planning.

I'm a Backend Software Engineer based in Bangalore, specializing in building fintech systems that handle real money, real customers, and real-time operations. Every feature I deliver is bug-free, production-stable, and designed to scale.

Before my current role, I honed my skills as a freelancer on Fiverr, delivering projects across diverse domains — which taught me the value of clear communication, client-centric thinking, and shipping on time.

I don't jump into code. I start with system design, data schemas, and architecture — planning for the long term so that future modifications are effortless. My philosophy: if you have to rewrite it in 6 months, you didn't design it right the first time.

🎯

Design-First Approach

Extensive planning with system design, schemas, and architecture before writing a single line of code.

🛡️

Production-Grade Quality

Every feature ships bug-free and stable, built with clean code principles and thorough testing.

📈

KYC Integration Success

Recently built KYC backend with HyperVerge — increased KYC completion rate by 50% with a smooth user flow.

Scale & Performance

Systems serving 400K+ customers with 99.9% financial accuracy and optimized for high throughput.

Experience

Building production systems that handle real money and real scale.

GoldenPi Tech

Software Engineer — Fintech Bond Trading Platform

Nov 2022 – Present📍 Bangalore, India
400K+

Built and scaled end-to-end bond trading systems covering inventory management, pricing, RFQ flow, order execution, payment capture, and settlement

System DesignBond Trading
NSE

Integrated NSE RFQ APIs, collaborating with NSE teams to enable real-time quote generation, exchange order placement, and audit-compliant workflows

API IntegrationNSE
+20%

Designed and implemented a dynamic bond pricing engine with real-time calculations and markup logic, improving margin efficiency

Pricing EngineAlgorithm
+40%

Developed RM Hierarchy Management System using Nested Set Model in MongoDB, improving hierarchy reads and reporting performance

MongoDBData Modeling
+25%

Engineered Razorpay Virtual Account system for automated fund collection, increasing transaction success rates

PaymentsRazorpay
99.9%

Built automated payment reconciliation pipelines ensuring financial accuracy and reducing manual effort by 80%

AutomationReconciliation
-30%

Migrated HTML-to-PDF generation service to AWS Lambda, reducing infrastructure cost and improving scalability

AWS LambdaServerless
-40%

Integrated RabbitMQ for async workflows and notifications, reducing processing latency significantly

RabbitMQAsync
+50%

Built KYC backend with HyperVerge integration — smooth flow design increased KYC completion rate

KYCHyperVerge
💼

Freelance Developer — Fiverr

Before my full-time career, I worked as a freelance developer on Fiverr, delivering projects across web development and building strong client communication skills.

Skills & Technologies

Tools and technologies I use to build production systems.

⌨️

Languages

JavaScriptTypeScriptPythonJavaC++
⚙️

Backend

Node.jsExpress.jsREST APIsMicroservicesGraphQL
🎨

Frontend

React.jsNext.jsAngularHTML5CSS3ES6+
🗄️

Databases

MongoDBMySQLPostgreSQLRedis
☁️

Cloud & DevOps

AWS LambdaEC2S3DockerServerless
📫

Messaging & Tools

RabbitMQGitMetabasePostman
🐍

Python Stack

PandasData ProcessingAutomation Scripts
🏦

Domain Expertise

FintechBond TradingPaymentsNSE IntegrationKYC
Primary Stack
Node.jsTypeScriptMongoDBAWSRabbitMQ

Let's Connect

Got a project in mind or want to discuss fintech systems? I'd love to chat.