Ankush Rajabhoj
Senior Software Engineer (Backend / Full-stack / Mobile)
Overview
7+ years of experience designing and scaling distributed backend systems handling 900 millions+ DAU. Proven ability to architect fault-tolerant microservices, optimize high-throughput pipelines, and lead cross-functional teams for large-scale SaaS platforms. Skilled in Backend, Frontend, Mobile, Cloud, and system design, with a strong focus on performance, reliability, and scalability. Actively exploring technologies related to AI and LLMs.
Skills and Technologies
Java, JavaScript, Swift, GO C/C++, Objective-C, NO-SQL, SQL, Redis, Spring Boot, Spring Cloud, RESTful APIs, Algorithms, Data Structures, System Design (HLD / LLD), Distributed Systems, Microservices, AWS, React, Angular, iOS, Android
    PROFESSIONAL EXPERIENCE
    Around 7 years as a Software Engineer, Backend Focused
    Digicert | Senior SDE | Sept 24
    Java, Spring Boot, Docker, Kubernetes
    • In the Secure Trust Manager team, responsible for the Code Signing Tool.
    • Designed and managed a robust code-signing solution using PKI principles, ensuring secure software distribution..
    • Improved the test development workflow using TDD/BDD methodologies, increased code coverage by 11%.
    CleverTap | Senior SDE | May 21 to Jun 24) : Core-App: Campaign and Journeys
    Java, JavaScript, React, Redis, MongoDB, Distributed Systems, Microservices, AWS
    • Scaled the Journeys platform to handle 900 million+ daily events and notifications, achieving sub-200ms processing latency..
    • Features that have been developed are:
      • Notification delivery systems: Based on the best time for engagement/conversion and the user timezone.
      • Developed an AI-based content generation tool, reducing campaign copy creation time from 2 days to minutes.
      • RenderMax: Enhancements to increase push notification render rate by 15-20 percentage points, uplifting it to 85%.
      • IntelliNODE: An AI based experimentation framework which enables clients to design customer journeys optimised for conversions.
    • Rearchitected Journey reporting using a queuing system and optimized query structure, reducing noisy neighbor issues and related support tickets by 30%.
    • Designed a Journey Stats Debugger framework that cut resolution time for customers' statistics-related queries and reduced bug resolution time by 7 days, a 48% improvement in turnaround.
    • Collaborated cross-functionally, mentored peers, conducted comprehensive (code / technical / design) reviews, influenced architectural decision, and led the team in implementing scalable and maintainable solutions.
    Raja Software Labs | SDE | Mar 19 to Feb 21
    iOS, Android, Java, Kotlin, Swift, Objective C
    • Led LinkedIn Groups team, improving daily active usage time by 2x via optimized feature development.
    • Delivered key iOS features for Google Chat, Meet, and Gmail integration, enabling seamless migration from Hangouts for millions of users.
    BNY Mellon | SDE | Jun 17 to Aug 18
    Java, Spring Boot, JavaScript, Angular, Spring Cloud, Docker, Kafka
    • Built a real-time data ingestion and visualization system, contributing to $80M increase in managed securities in year one.
    • Migrated a monolithic application into multiple microservices, reducing downtime by 79% improving fault tolerance and deployment agility.
    Other work (Full-stack SDE)
    • Spearheaded the development of a web application for managing and streamlining online orders, reducing manual effort by 54% as a freelancer (Aug 18 to Mar 19).
    • Worked as a Full-stack developer in the LendIn team at Kuliza Technologies (Mar 21 to May 21).
    Personal projects
    • GPU-Optimized Algorithms: Improved multidimensional DP algorithm performance by 21x using multithreaded GPUs (5M+ entries).
    • IoT Energy Management System: Built prototype device reducing energy consumption by 20%
    Education
    Achievements