Kanak Singh

Backend Engineer

Gurugram, Haryana, India1 yr 5 mos experience

Key Highlights

Expert in optimizing backend APIs for performance.
Proven experience in building scalable backend solutions.
Strong ownership of end-to-end feature delivery.

Stackforce AI infers this person is a Backend Software Developer specializing in SaaS and Fintech solutions.

Contact

Skills

Core Skills

JavaSpring FrameworkBackend DevelopmentApi Optimization

Other Skills

REST APIsGitHubExcel ReportingThird-party API IntegrationAutomationRole-based Ticketing SystemCron JobsGrafanaSoftware DesignSystems DesignRedisBack-End Web DevelopmentPostman APIDebuggingNode.js

About

Backend Software Developer with experience building and optimizing APIs in a product-based environment. I’ve worked on performance-critical backend systems, third-party API integrations, cron-based automations, and internal tools used by large user bases. I enjoy taking ownership of features end-to-end — from understanding requirements to delivery and optimization. Currently looking for Backend / Java Developer roles where I can work on scalable systems, clean APIs, and meaningful products. Open to relocation.

Experience

1 yr 5 mos

Total Experience

1 yr 2 mos

Average Tenure

3 mos

Current Experience

Apollo 24|7

SDE 1

Feb 2026 – Present · 3 mos · Gurugram · Hybrid

JavaSpring FrameworkREST APIsGitHub

Fieldassist

Software Developer

Nov 2024 – Jan 2026 · 1 yr 2 mos · Gurugram · Hybrid

Optimized performance-critical backend APIs, reducing response time from ~30s to ~10s, improving system responsiveness and client experience (validated via Grafana).
Built backend solutions for generating Excel-based reports by integrating real-time system data, used daily by hundreds of users across internal and client teams.
Designed and integrated third-party APIs to automate workflows such as invoice processing, and database updates, improving operational reliability.
Engineered an internal invoice automation tool integrated with Zoho APIs, enabling invoice tracking, reminders, credit note handling, and finance-side adjustments — reducing manual effort by ~40%.
Implemented a role-based ticketing system with advanced filters and permissions, supporting onboarding of clients and improving support efficiency by ~30%.
Automated daily overdue payment reminders and invoice synchronization using cron jobs, cutting manual follow-ups by ~80%.

API OptimizationBackend DevelopmentExcel ReportingThird-party API IntegrationAutomationRole-based Ticketing System+1