Sachin Tiwari

Backend Engineer

Mumbai, Maharashtra, India3 yrs experience

AI Enabled

Key Highlights

Drove core initiatives in a financial reconciliation platform.
Improved test coverage from 26% to 65% in production.
Automated report ingestion, reducing manual effort by 80%.

Stackforce AI infers this person is a Backend Engineer specializing in Fintech solutions with a focus on scalable architectures.

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Skills

Core Skills

MicroservicesGo (programming Language)Node.jsJavascriptApplication Development

Other Skills

AngularAngularJSArtificial intelligence enthusiastC (Programming Language)CommunicationCore JavaData StructuresDocker ProductsEngineeringJavaKubernetesMongoDBMySQLObject-Oriented Programming (OOP)Problem Solving

About

As a Software Development Engineer, I specialize in backend systems, DSA, and building scalable, high-performance solutions across fintech and enterprise domains. At Razorpay, I’m driving core initiatives in Recon-SaaS — a 0→1 financial reconciliation platform. My work includes refactoring data models for consistency, automating report ingestion to cut manual effort by 80%, and enabling dynamic, self-serve merchant onboarding. I also improved test coverage from 26% to 65% and introduced structured logging and health monitoring. Previously at Signzy, I led integrations of a no-code onboarding platform with major banks, delivered Aadhaar/PAN-based validations with NSDL/UIDAI, promoted TDD, and optimized Docker-based deployments. I focus on clean architecture, system resilience, and developer productivity — and I’m passionate about solving real-world problems with code.

Experience

Razorpay

Senior Backend Engineer

Sep 2024 – Present · 1 yr 6 mos · Bengaluru, Karnataka, India

Razorpay | Recon-SaaS (0→1 reconciliation platform)
Built automated pipelines (S3 → MPR) and validation layers — cut manual ops by 80%, improved data accuracy to 99.9%.
Developed scalable microservices and dynamic schedulers — reduced processing time by 40%, accelerated issue resolution by 60%.
Designed a configurable rule engine for 30+ merchant flows — slashed onboarding time by 70%.
Refactored core data models and optimized query paths — boosted reporting speed by 60%, lowered infra warm-up by 35%.
Led zero-downtime deployments with Splitz, AI-driven test coverage (26% → 65%), and health monitoring — enhanced platform reliability.
Resolved critical ₹80Cr+ merchant recon escalation and enabled self-serve onboarding — improved merchant experience and adoption.

Go (Programming Language)MicroservicesDocker ProductsMongoDBMySQLKubernetes+1

Signzy

Software Development Engineer

Apr 2023 – Sep 2024 · 1 yr 5 mos · Bengaluru, Karnataka, India · On-site

Integrated GO (no-code onboarding platform) with major Indian banks — enabled secure, scalable data flows.
Delivered BFSI integrations with UIDAI, NSDL, and internal APIs — ensured KYC compliance and data accuracy.
Built internal APIs for ops teams — reduced eng dependency and improved SLAs.
Engineered PAN/KYC wrappers and onboarding workflows for 3 major banks — enhanced reliability and speed of delivery.
Resolved critical prod issues with hotfixes — maintained 99.9%+ uptime.
Authored 200+ unit tests (Jest, Mocha) — drove TDD and improved code quality.
Created Dockerfiles and optimized CI/CD for 5+ services — improved deployment speed and stability.
Owned end-to-end delivery — from backend logic to production rollout.

MicroservicesAngularJSNode.jsTest-Driven DevelopmentJava

Blitz jobs

Web Development Intern

Dec 2020 – Mar 2021 · 3 mos

Led end-to-end development of the backend onboarding system — built custom APIs and complex business logic.
Delivered seamless, secure, and scalable integrations with existing systems.
Architected and developed the frontend using React.js, Node.js, JavaScript, HTML, and CSS — focused on performance and UX.
Designed responsive, intuitive UIs — optimized state management, code modularity, and cross-browser compatibility.
Owned the full visual and functional delivery of the web app — from UI design to deployment.
Collaborated with cross-functional teams to align technical execution with business goals and user needs.

Application DevelopmentData StructuresJavaScriptSpring FrameworkJavaSpring Boot