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Shivam Modi

SDE @ SalarySe | Ex-Syfe | Backend Engineer | Payments Infrastructure & Distributed Systems | Java, Spring Boot, Node.js, PostgreSQL | NSUT”23

West Delhi

5+ years of work experience

SalarySe
Jun 20264 mosPresent

Gurugram

• Built and launched Database Change Runner, a self-service PR-reviewed pipeline for production data changes (dry-run EXPLAIN, ownership gates, apply-on-merge, auto-rollback), replacing unreviewed manual psql access. • Owned the company's first paid subscription product end-to-end: full Juspay P2M UPI AutoPay mandate lifecycle (signature, webhooks, execution, revocation) and subscription state machine across 4 services. • Root-caused 4 production incidents — HikariCP pool exhaustion from a missing @SchedulerLock that let two pods double-enqueue 13K+ jobs, and unbounded Prometheus tag cardinality causing OOMs across 4 services. Pod restarts fell 8–12/day to ~1/day. • Built Mixpanel and Metabase agents for the internal LLM assistant (OAuth/PKCE, RFC 8414 discovery) with a fail-closed MCP allowlist that closed a raw-SQL execution path exposed under innocuous tool names.
Syfe
Sep 20241 yr 10 mosJun 2026

Gurugram

• Built the backend for a new instant-withdrawal product spanning 4 microservices across wealth, banking, and accounting domains - broker sell-order generation, idempotent payment ledger, NAV correction for non-trading days, and customer-facing APIs - shipping a money-movement feature touching the firm's core financial subsystems. • Delivered zero-downtime upgrades to tier-0 production infrastructure — PostgreSQL major-version migration (v13 → v17) and Spring Boot framework upgrade across services (v2.5 → v3.7) — handling dependency compatibility, Flyway validation, and staging cutover with no customer impact. • Built a distributed-locking layer for Quartz scheduled jobs in a multi-pod Kubernetes deployment — eliminated duplicate execution of financial-aggregation, payout, and auto-lockin jobs across pods, with extended-lease semantics for long-running backfills, now the default pattern for cross-pod job coordination. • Built a transaction reconciliation system integrated with a Tier-1 banking partner - account-information APIs, payout-transaction recon job, internal recon dashboard, and a refactored core recon service with job clustering and timezone-correct retries - foundation for the org's payment-integrity guarantees. • Automated a high-toil dividend payout workflow end-to-end - shared payout service, indexed cash-flow tables, partner notifications, and a clean payout-state machine - replacing a manual ops process and removing an entire class of operational risk. • Optimized the daily NAV computation pipeline - decoupled file processing from compute, rewrote accrual queries, batched order-items reads, and re-tuned post-NAV Quartz triggers - reducing critical-path runtime and stabilizing the daily closing window for downstream finance teams.
Resilient AI Solutions
Jun 20231 yr 4 mosSep 2024

On-site

• Streamlined Onboarding: Built a full-staff onboarding workflow with KYC, bank validation, and e-signing, significantly improving efficiency. • Enhanced Customer Service: Developed a comprehensive customer service queue system for efficient issue tracking and resolution including complete UI and backend. • Secured Video KYC: Pioneered a Shapath video KYC workflow that verifies user identity using spoken words & facial recognition. • Automated Loan Approvals: Built a dynamic loan approval workflow with flexible requirements for faster processing integrated into the main Flutter app. • Enabled Multi-Lender Management: Created a system allowing users to connect with multiple lenders within a single platform. • Improved Data Security: Developed a secure plugin to extract only financial SMS from Android devices, ensuring user privacy. • Simplified Staff Attendance: Streamlined daily staff attendance tracking with a robust in-app workflow for better data accuracy. • Integrated API to get VPA linked with phone number • Added Firebase and Facebook Analytics services to the app
Resilient AI Solutions
Nov 20211 yr 8 mosJun 2023

Hybrid

• Spearheaded the development of the core structure for the company's flagship app from the ground up. • Translated UI/UX designs into high-quality, reusable Flutter code, ensuring a visually stunning and user-friendly experience. • Championed code reusability by crafting custom Flutter packages and plugins, streamlining future development. • Developed robust backend APIs with comprehensive test cases, guaranteeing data integrity and reliable functionality. • Enabled seamless communication by integrating external notification channels (WhatsApp, SMS) for real-time user engagement. • Leveraged diverse tools and techniques (Node.js, AWS) to build a scalable and efficient backend infrastructure. • Designed and implemented a bulk notification system utilizing target groups and SQS for efficient and targeted communication.
Sep 20209 mosMay 2021

New Delhi, Delhi, India

Nobl is an 🇮🇳 India-based questions- answering platform, with post sharing feature and much more to wonder about. The main idea behind this app is that people should encourage each other and solve each other's problems whether it's professional or personal. • Composed of Flutter, NodeJs and Firebase with crash-free rate of 99.9%. • Published on Play Store overall 4.8+ organic rating. • Real-time search results, push notifications, GIF chat, Providing real-time chat with a maximum of 240 users, post views counter, Comments, and more.
GitHub
@shivam-modi
Medium
@shivam27modi
LeetCode
@thinkersm

Shivam’s AI Stack

antigravity
antigravity
claude code
claude code
cursor
cursor
github copilot
github copilot
mcp
mcp
windsurf
windsurf

Education

Netaji Subhas Institute of Technology

Bachelor of Technology - BTech, Mathematics and Computing

Netaji Subhas Institute of Technology

20194 yrs2023

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Headline

SDE @ SalarySe | Ex-Syfe | Backend Engineer | Payments Infrastructure & Distributed Systems | Java, Spring Boot, Node.js, PostgreSQL | NSUT”23

About

Software Engineer with experience in building financial systems, high-volume data workflows, and backend architectures in Java/Kotlin and Spring Boot. I enjoy designing reliable, resilient, and scalable systems with strong ownership from design to deployment. My work spans transaction flows, settlement logic, ETL-style pipelines, event-driven communication, and performance-sensitive backend components across fintech platforms. I focus heavily on correctness, data consistency, latency reduction, and delivering systems that work at scale. I’m particularly interested in backend engineering roles where I can work on distributed workflows, payment systems, data platforms, or complex business-critical backend services.

Location

West Delhi

AI stack

antigravity

claude code

cursor

github copilot

mcp

windsurf

Work experience

Senior Software Engineer at SalarySe, Jun 2026 - Present · 4 mos, Gurugram, • Built and launched Database Change Runner, a self-service PR-reviewed pipeline for production data changes (dry-run EXPLAIN, ownership gates, apply-on-merge, auto-rollback), replacing unreviewed manual psql access. • Owned the company's first paid subscription product end-to-end: full Juspay P2M UPI AutoPay mandate lifecycle (signature, webhooks, execution, revocation) and subscription state machine across 4 services. • Root-caused 4 production incidents — HikariCP pool exhaustion from a missing @SchedulerLock that let two pods double-enqueue 13K+ jobs, and unbounded Prometheus tag cardinality causing OOMs across 4 services. Pod restarts fell 8–12/day to ~1/day. • Built Mixpanel and Metabase agents for the internal LLM assistant (OAuth/PKCE, RFC 8414 discovery) with a fail-closed MCP allowlist that closed a raw-SQL execution path exposed under innocuous tool names.

SDE-1 at Syfe, Sep 2024 - Jun 2026 · 1 yr 10 mos, Gurugram, • Built the backend for a new instant-withdrawal product spanning 4 microservices across wealth, banking, and accounting domains - broker sell-order generation, idempotent payment ledger, NAV correction for non-trading days, and customer-facing APIs - shipping a money-movement feature touching the firm's core financial subsystems. • Delivered zero-downtime upgrades to tier-0 production infrastructure — PostgreSQL major-version migration (v13 → v17) and Spring Boot framework upgrade across services (v2.5 → v3.7) — handling dependency compatibility, Flyway validation, and staging cutover with no customer impact. • Built a distributed-locking layer for Quartz scheduled jobs in a multi-pod Kubernetes deployment — eliminated duplicate execution of financial-aggregation, payout, and auto-lockin jobs across pods, with extended-lease semantics for long-running backfills, now the default pattern for cross-pod job coordination. • Built a transaction reconciliation system integrated with a Tier-1 banking partner - account-information APIs, payout-transaction recon job, internal recon dashboard, and a refactored core recon service with job clustering and timezone-correct retries - foundation for the org's payment-integrity guarantees. • Automated a high-toil dividend payout workflow end-to-end - shared payout service, indexed cash-flow tables, partner notifications, and a clean payout-state machine - replacing a manual ops process and removing an entire class of operational risk. • Optimized the daily NAV computation pipeline - decoupled file processing from compute, rewrote accrual queries, batched order-items reads, and re-tuned post-NAV Quartz triggers - reducing critical-path runtime and stabilizing the daily closing window for downstream finance teams.

SDE-1 at Resilient AI Solutions, Jun 2023 - Sep 2024 · 1 yr 4 mos, On-site, • Streamlined Onboarding: Built a full-staff onboarding workflow with KYC, bank validation, and e-signing, significantly improving efficiency. • Enhanced Customer Service: Developed a comprehensive customer service queue system for efficient issue tracking and resolution including complete UI and backend. • Secured Video KYC: Pioneered a Shapath video KYC workflow that verifies user identity using spoken words & facial recognition. • Automated Loan Approvals: Built a dynamic loan approval workflow with flexible requirements for faster processing integrated into the main Flutter app. • Enabled Multi-Lender Management: Created a system allowing users to connect with multiple lenders within a single platform. • Improved Data Security: Developed a secure plugin to extract only financial SMS from Android devices, ensuring user privacy. • Simplified Staff Attendance: Streamlined daily staff attendance tracking with a robust in-app workflow for better data accuracy. • Integrated API to get VPA linked with phone number • Added Firebase and Facebook Analytics services to the app

Software Developer at Resilient AI Solutions, Nov 2021 - Jun 2023 · 1 yr 8 mos, Hybrid, • Spearheaded the development of the core structure for the company's flagship app from the ground up. • Translated UI/UX designs into high-quality, reusable Flutter code, ensuring a visually stunning and user-friendly experience. • Championed code reusability by crafting custom Flutter packages and plugins, streamlining future development. • Developed robust backend APIs with comprehensive test cases, guaranteeing data integrity and reliable functionality. • Enabled seamless communication by integrating external notification channels (WhatsApp, SMS) for real-time user engagement. • Leveraged diverse tools and techniques (Node.js, AWS) to build a scalable and efficient backend infrastructure. • Designed and implemented a bulk notification system utilizing target groups and SQS for efficient and targeted communication.

Co-Founder at Nobl, Sep 2020 - May 2021 · 9 mos, New Delhi, Delhi, India, Nobl is an 🇮🇳 India-based questions- answering platform, with post sharing feature and much more to wonder about. The main idea behind this app is that people should encourage each other and solve each other's problems whether it's professional or personal. • Composed of Flutter, NodeJs and Firebase with crash-free rate of 99.9%. • Published on Play Store overall 4.8+ organic rating. • Real-time search results, push notifications, GIF chat, Providing real-time chat with a maximum of 240 users, post views counter, Comments, and more.

Education

Bachelor of Technology - BTech, Mathematics and Computing, Netaji Subhas Institute of Technology

Public links

github: https://github.com/shivam-modi

medium: https://medium.com/@shivam27modi

leetcode: https://leetcode.com/thinkersm