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Avesh Singh

Senior Backend Engineer @ Leegality | Java, Spring Boot, Kafka, Microservices | High-Scale Distributed Systems

Gurugram

6+ years of work experience

Leegality
Jul 20233 yrs 1 moPresent

- Architected a distributed Notification Service (3 Spring Boot microservices) delivering 1Lakh+ daily notifications across SMS, Email, and WhatsApp with end-to-end tracking. Reduced latency by 30% and improved scalability via event-driven design (RabbitMQ, Kafka) + Redis caching. Delivered an SDK for seamless client integration. - Engineered a reusable Template Service enabling HTML/PDF document creation and workflows, improving customer onboarding efficiency and reducing repetitive setup. Applied SOLID principles to ensure long-term maintainability and scalability. - Developed a Cloud Config Service supporting multilingual rendering and nested JSON search for metadata management, improving customization for enterprise clients. - Mentored and guided junior developers by resolving technical queries, delegating tasks, and reviewing code—boosting team productivity and onboarding speed. - Collaborated with Product, QA, and DevOps to ensure smooth delivery and release cycles. Handled production incidents, performed root cause analysis, and implemented fixes that improved system uptime and reliability.
Leegality
Jan 20221 yr 7 mosJul 2023

Gurugram, Haryana, India

Chaayos
Jun 20201 yr 7 mosDec 2021

Delhi, India

- Implemented a Suggestive Ordering System for cafés, optimizing stock usage and reducing item wastage by 50%, directly improving profitability. - Optimized Profit & Loss (P&L) calculations to achieve 98% accuracy, ensuring reliable financial auditing and streamlining daily/monthly sales reporting. - Redesigned customer-facing café screens (POS UI), improving usability and UI appeal; drove 25% increase in ad placements and enhanced tracking of customer loyalty cycles. - Integrated CleverTap to automate 90% of customer notifications, strengthening customer engagement and improving retention through targeted journeys
Chaayos
Mar 20203 mosMay 2020

Delhi, India

Education

Maharshi  Dayanand University

Bachelor of Technology - BTech, Computer Science

Maharshi Dayanand University

20164 yrs2020
UCSKM Public School Bhiwadi

12th, Non medical

UCSKM Public School Bhiwadi

20151 yr2016

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Headline

Senior Backend Engineer @ Leegality | Java, Spring Boot, Kafka, Microservices | High-Scale Distributed Systems

About

I build backend systems that don't fall over under load — and I've spent the last 6+ years doing it for products serving thousands of daily users. Most recently, I took a distributed Notification Service at Leegality from initial direction to production — three Spring Boot microservices handling 4 million+ daily notifications across SMS, Email, and WhatsApp with full delivery tracking. Owned the design and Kafka/RabbitMQ-based event-driven implementation end-to-end, added Redis caching that cut latency 30%, and shipped the client-facing SDK that let client teams integrate without reading a single internal doc. Before that, at Chaayos, I built a suggestive ordering system that cut inventory waste by 50% and rebuilt P&L reporting to 98% accuracy — work that touched real margins, not just dashboards. What I'm good at: turning ambiguous backend problems into systems that scale cleanly — Java, Spring Boot, Kafka, Redis, microservices architecture, and the system design thinking that ties it together. I care about clean code and reliability because I've been the one debugging production at 2am when neither existed. Open to conversations about senior backend roles where scale and ownership actually matter.

Location

Gurugram

Work experience

Senior Software Engineer at Leegality, Jul 2023 - Present · 3 yrs 1 mo, - Architected a distributed Notification Service (3 Spring Boot microservices) delivering 1Lakh+ daily notifications across SMS, Email, and WhatsApp with end-to-end tracking. Reduced latency by 30% and improved scalability via event-driven design (RabbitMQ, Kafka) + Redis caching. Delivered an SDK for seamless client integration. - Engineered a reusable Template Service enabling HTML/PDF document creation and workflows, improving customer onboarding efficiency and reducing repetitive setup. Applied SOLID principles to ensure long-term maintainability and scalability. - Developed a Cloud Config Service supporting multilingual rendering and nested JSON search for metadata management, improving customization for enterprise clients. - Mentored and guided junior developers by resolving technical queries, delegating tasks, and reviewing code—boosting team productivity and onboarding speed. - Collaborated with Product, QA, and DevOps to ensure smooth delivery and release cycles. Handled production incidents, performed root cause analysis, and implemented fixes that improved system uptime and reliability.

Software Engineer at Leegality, Jan 2022 - Jul 2023 · 1 yr 7 mos, Gurugram, Haryana, India

Software Engineer at Chaayos, Jun 2020 - Dec 2021 · 1 yr 7 mos, Delhi, India, - Implemented a Suggestive Ordering System for cafés, optimizing stock usage and reducing item wastage by 50%, directly improving profitability. - Optimized Profit & Loss (P&L) calculations to achieve 98% accuracy, ensuring reliable financial auditing and streamlining daily/monthly sales reporting. - Redesigned customer-facing café screens (POS UI), improving usability and UI appeal; drove 25% increase in ad placements and enhanced tracking of customer loyalty cycles. - Integrated CleverTap to automate 90% of customer notifications, strengthening customer engagement and improving retention through targeted journeys

Software Engineer Intern at Chaayos, Mar 2020 - May 2020 · 3 mos, Delhi, India

Education

Bachelor of Technology - BTech, Computer Science, Maharshi Dayanand University

12th, Non medical, UCSKM Public School Bhiwadi