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Sumit Kumar

Results-driven Engineering Leader with 14+ years of experience in Mobile and Web application development, along with expertise in Python+Django, Devops, AWS, and backend services.

Over 5+ years of experience managing engineering teams, building high-performing teams, and optimizing processes. Skilled in strategic planning, cross-functional collaboration, and translating technical concepts into business value. Proven ability to lead digital transformation initiatives and align technology roadmaps with organizational goals.

  • Role

    Sr Engineering Manager | ARkit Developer

  • Years of Experience

    15 years

  • Professional Portfolio

    View here

Skillsets

  • n8n
  • HTML
  • IntelliJ
  • Jenkins
  • Jira
  • Kibana
  • Kinesis
  • Lambda
  • LangChain
  • Lovable.ai
  • Miro
  • Mixpanel
  • MongoDB
  • Mural
  • MySQL
  • GraphQL
  • OpenCV
  • PostgreSQL
  • Python
  • railway
  • Redis
  • REST
  • Room dB
  • S3
  • SonarQube
  • Splunk
  • Supabase
  • Xcode
  • Cloud zero
  • Amplify
  • Android - 3 Years
  • Flutter - 1 Years
  • AWS - 4 Years
  • Django - 3 Years
  • CI/CD
  • JavaScript
  • Kafka
  • Kotlin
  • Node.js
  • Swift
  • TypeScript
  • Vue.js
  • .NET
  • Airtable
  • iOS - 10 Years
  • Claude
  • Confluence
  • CoreData
  • CSS
  • Cursor
  • Datadog
  • EC2
  • Fastify
  • Fastlane
  • Firebase
  • Firestore
  • GenAI
  • Google Analytics

Professional Summary

15Years
  • Sep, 2024 - Present1 yr 4 months

    Senior Engineering Manager

    American Express
  • May, 2023 - Aug, 20241 yr 3 months

    Engineering Manager

    Twin Health
  • Jun, 2022 - Feb, 2023 8 months

    Software Engineering Manager

    Twilio
  • Jul, 2010 - May, 20154 yr 10 months

    Sr Engineer (.NET, iOS, Android)

    Infosys
  • Jul, 2010 - May, 20154 yr 10 months

    Sr Engineer (.NET, iOS, Android)

    Cognizant
  • May, 2015 - May, 20227 yr

    Architect / Engineering Manager

    Deloitte

Applications & Tools Known

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    Git

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    Javascript

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    REST API

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    Python

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    PostgreSQL

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    Slack

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    Jira

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    Figma

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    Visual Studio Code

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    Postman

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    Airtable

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    Microsoft Teams

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    Android Studio

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    Xcode

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    IntelliJ IDEA

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    Confluence

Work History

15Years

Senior Engineering Manager

American Express
Sep, 2024 - Present1 yr 4 months
    Led fullstack teams (iOS, Android, Backend, QA) to deliver Credit Line and CFR features across 5+ markets, driving ~20% revenue growth. Architected scalable BFF (Kotlin) and backend services for 40M+ MAU. Collaborated with VP/Sr Staff to align engineering strategy with global product roadmap to achieve business OKR & KPI.

Engineering Manager

Twin Health
May, 2023 - Aug, 20241 yr 3 months
    Spearheaded AI-powered health app across mobile and web. Reduced CPL by 75% and increased conversions by 22% via freemium journey. Led accessibility (AA) and i18n implementation for global rollout. Led quarterly planning, resource forecasting, and engineering OKR alignment across cross-functional groups and CTO/CPO.

Software Engineering Manager

Twilio
Jun, 2022 - Feb, 2023 8 months
    Scaled engineering team from 4 to 12 engineers, delivering 10+ AI/ML SDK features. Led development of Authy and Conversations SDK impacting 20+ clients using Swift, Kotlin, JS, Node.js.

Architect / Engineering Manager

Deloitte
May, 2015 - May, 20227 yr
    Led architecture and delivery of 8+ B2C/Enterprise applications across healthcare, e-commerce, FMCG, and sports. Improved code quality by ~30% by building internal frameworks to streamline development processes.

Sr Engineer (.NET, iOS, Android)

Cognizant
Jul, 2010 - May, 20154 yr 10 months
    Leading application developments.

Sr Engineer (.NET, iOS, Android)

Infosys
Jul, 2010 - May, 20154 yr 10 months
    Leading application developments.

Achievements

  • Twilio Hoots
  • Deloitte's Outstanding, Applause, and Spot awards
  • 2nd Prize from Help Age India (Social Cause)
  • Cognizant's Star Performer & Infosys spot awards

Major Projects

6Projects

DeciD

    CI/CD auto-setup generator (Vue.js + Django), reduced setup time by 90%.

COV-AID

    AI-based mask and temperature scanner using OpenCV built to automate COVID screening.

Calorie Meter

    Health and fitness app published on App Store.

Portfolio Website

    Dynamic site built with Django and PostgreSQL, hosted on Railway.

Discord Bot

    Integrated with ChatGPT for contextual interactions.

Ai World India Social Impact Aggregator

    Web app for AI tools, news, and courses (Vue.js + Firebase).

Education

  • Bachelor of Technology (B.Tech)

    ITER College (2010)