Debdut Saha

DevOps Engineer

Kolkata, West Bengal, India6 yrs 3 mos experience

Most Likely To Switch

Key Highlights

Improved Android app startup time by 40%
Built real-time notification and trading systems using WebSockets
Delivered revenue-impacting features contributing 2%+ GMV growth

Stackforce AI infers this person is a Fintech Mobile Engineer with expertise in high-performance mobile application development.

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Skills

Core Skills

Back-end Web DevelopmentKotlin MultiplatformAndroid DevelopmentReact Native

Other Skills

Go (Programming Language)KMPCMPAndroid FrameworkAndroid SDKReact.jsAndroid StudioPrometheus.ioPostgreSQLAWS Secret managerAmazon DynamodbCronOkHttpClean Architectureandroid jetpack

About

Senior Mobile Software Engineer (SDE-3) | Full-Stack Mobile Engineer I build scalable, high-performance mobile applications across Android, iOS, and Kotlin Multiplatform (KMP) with a strong focus on architecture, performance, and real-world business impact. With 5+ years of experience, I’ve worked on fintech and consumer-scale apps handling real-time systems, WebSockets, dynamic UI rendering, and revenue-critical flows. What I specialize in 👇 • Android Development (Kotlin, Jetpack Compose) • iOS Development (Swift, SwiftUI) • Kotlin Multiplatform (KMP, CMP, shared business logic) • Mobile System Design & Clean Architecture (MVVM, MVI) • High-performance networking (OkHttp, Retrofit, WebSockets) • App startup optimization & baseline profiling • Offline-first architecture & data sync • CI/CD pipelines (GitHub Actions, Jenkins) Impact highlights 🚀 • Improved Android app startup time by 40% • Built real-time notification & trading systems using WebSockets • Delivered revenue-impacting features contributing 2%+ GMV growth • Led teams and owned features end-to-end in production I’m passionate about mobile architecture, Compose Multiplatform, performance optimization, and building reusable SDKs that scale across platforms. 📌 Open to Senior / Staff Mobile Engineer, KMP Engineer, Mobile Platform roles ✍️ I also write about Android, KMP, Compose & system design

Experience

6 yrs 3 mos

Total Experience

1 yr 6 mos

Average Tenure

2 yrs 10 mos

Current Experience

Angel one

3 roles

SDE-3(Backend)

Apr 2026 – Present · 1 mo

Back-End Web DevelopmentGo (Programming Language)

SDE-3(Mobile)

Promoted

Apr 2025 – Apr 2026 · 1 yr

KMPCMPKotlin Multiplatform

SDE-2(Mobile)

Jul 2023 – Apr 2025 · 1 yr 9 mos

Worked on several features and optimisations
1. Have built new revamped home page with semi server driven ui.
2. Have done base line profiling for better startup time (30% faster load compared to earlier)
3. Have built network SDK for angelone mobile app.
4. Have built OiAnalytics screen from scratch.
5. Have built orderpad for angelone from scratch
6. Have built new validation SDK from scratch.
7. Have built templating engine for order pad.

Android DevelopmentAndroid Framework

Sharechat

2 roles

SDE-2(Mobile)

Promoted

Oct 2022 – Jul 2023 · 9 mos

Worked on several features
1. Tournament battles
2. New feed from xml to compose migration
3. Have optimised a scroll experiences and also identified janks.
4. Super Gift ( similar to super chat in youtube )
5. React native optimisations.

Android DevelopmentAndroid SDK

SDE-1(Mobile)

Dec 2021 – Oct 2022 · 10 mos

Working in one of the best feature of Sharechat
i.e. virtual gifting.
1. Have built gifter battle feature where host will conduct gifting race between members inside chatroom which will be real time bike race.
2. Introduced shimmer placeholder for for initialization of chatroom.
3. Made different kind of gifting flying animations from scratch.
4. Made animations like swipable card.
5. Introduced server driven component in one of our feed component.
6. Have implement cash back feature animation like games.
7. Have implemented beatiful winner announcement card which looks stunning.
8. Have scaled ui to be smooth in different screens.
9. Have introduced free gifts for first time users.