About me

I'm a Lead Software Engineer based in Bangalore, India, specializing in mobile applications and full-stack software development. I enjoy turning complex engineering challenges into efficient, scalable, and maintainable solutions.

My role involves guiding architecture and development while ensuring we clearly understand the problem, validate decisions with data, choose the right tools, and maintain strong code governance. This approach helps keep development and maintenance costs low. In fast-moving startup environments, I also contribute to strategic decision-making by helping prioritize the most impactful problems when time and resources are limited.

What i'm doing

  • design icon

    System design

    The most modern and custom-tailored architecture and system design done at an affordable budget.

  • Full-Stack development icon

    Full-Stack development

    Full Stack development using React, Node, GoLang, PostGreSQL, MongoDb. Using observability tools like Grafana, Prometheus, Sentry and container orchestration using K8s and Docker

  • mobile app icon

    Mobile apps

    Development of native and hybrid applications for iOS and Android.

  • camera icon

    Art & Photography

    I'm a hobbyist photographer and like to sketch in my free time.

Testimonials

  • Akshat Sharda

    Akshat Sharda

    Known Arnab from our CureFit days. He is a highly dependable software engineer who consistently raised the bar for quality. He worked extensively on Android development, where he identified and fixed multiple memory issues and hard-to-reproduce bugs that directly improved app stability and customer experience. Beyond core development, Arnab naturally took on additional responsibilities whenever needed — contributing to system design discussions, maintaining clear technical documentation, and approaching every problem with a strong sense of customer obsession. His ability to balance engineering depth with product thinking made him a valuable teammate and a pleasure to work with.

  • Srikar Chakka

    Srikar Chakka

    Arnab was one of primary POCs for the pod executive applications which are used in Instamart dark stores as part of SCM. He had shown immense ownership during the migration of the aforementioned apps which led to the improvement in performance and maintainability. While doing this project, he stepped up and became one of the key cogs of the Instamart app team.

  • Nayna Kumari

    Nayna Kumari

    Arnab collaborated with me on multiple freelancing projects as an Android, React Native, and iOS consultant. He is highly skilled, proactive, and collaborative, delivering solutions that consistently improve project quality and efficiency. A reliable and versatile engineer, he’s a pleasure to work with.

  • Rameshwar Singh

    Rameshwar Singh

    I’ve had the pleasure of working with Arnab both as a colleague at Adansa Solutions Pvt Ltd and as a classmate during our MCA post-graduate studies. At Adansa, while I focused on iOS development and Arnab on Android, I was constantly impressed by his technical depth, problem-solving skills, and meticulous approach to engineering. Arnab has a remarkable ability to understand complex systems quickly, identify potential issues before they escalate, and implement robust solutions that improve both app performance and user experience. Beyond his technical skills, his keenness to learn, attention to detail, and collaborative spirit make him a standout engineer. He’s the kind of teammate who elevates the entire team, contributes thoughtfully to system design, and consistently ensures quality at every step.

Clients

Resume

Education

  1. Makhanlal Chaturvedi National University

    2013 — 2015

    Studied Master of Computer Applications, learning about Data Warehousing and Mining, Operating Systems, Microprocessors like 8085 and 8086 and Compiler Design

  2. West Bengal University Of Technology

    2009 — 2012

    Studied Bachelor of Computer Application, learning about basics of programming in C, C++, Java and Automata and Statistical Analysis.

Experience

  1. Lead Software Engineer - ASAPP

    Aug 2023 — Present

    - Lead a cross-functional team of 5–6 engineers and own the B2B ChatSDK behind contact centers for American Airlines, JetBlue and DISH (5–6M conversations a month).
    - Built GenAI integration and human-in-the-loop orchestration; shipped MCP Apps in our SDK after an A2UI vs MCP Apps proof of concept.
    - Built multi-CCaaS integrations with Salesforce, Twilio and Amazon Connect.
    - Cut p95 API latency by ~20% with gRPC contracts, and build and release time by ~15% with CI/CD and Appium automation.

  2. Senior Software Engineer - Swiggy Instamart

    Mar 2022 — Aug 2023

    - Led the migration of critical APIs from Java/Node.js to Go: 10–12% lower latency, 30% faster feature delivery.
    - Built the ESC/POS thermal-printing module behind 1M+ Instamart orders a day.
    - Led the migration of internal dark-store web apps, and cut delivery time by ~15% with automation and reusable components.

  3. Senior Software Engineer - Recrosoft (CureFit)

    Oct 2018 — Mar 2022

    - Led the Cult Attendance & Trainer app as the platform grew to ~5M users, reaching 99.99% crash-free sessions and 25% better responsiveness.
    - Built heart-rate monitoring into the Android TV app over Bluetooth.
    - Set up analytics, error reporting and CI/CD, and cut MTTR by ~10% with Prometheus and Grafana.

  4. Senior Android Developer - BitCanny Technologies

    Jul 2017 — Oct 2018

    - Led a team of engineers building an IoT system over MQTT, Z-Wave and similar lightweight protocols.
    - Shaped the early backend design across on-premise, monolithic and microservice deployments.

  5. Software Engineer - Adansa Solutions

    Apr 2015 — Jul 2017

    - Led the move of legacy web features to native Android apps, lifting retention and conversion by ~20%.
    - Added Elasticsearch and S3 and moved services from SOAP to REST, improving system efficiency by ~25%.

  6. Programmer - Tata Consultancy Services

    Apr 2012 — Jul 2013

    - Built Velu the Welder, a gamified industrial-training app, in Flash/ActionScript and Unity.

My skills

  • System design
    85%
  • Mobile App Development
    90%
  • FrontEnd Development
    70%
  • Backend Development
    80%

Blog

Contact

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