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👨‍💻 🐞 Debugging... because programming is easy. ☕
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👨‍💻 🐞 Debugging... because programming is easy. ☕
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Achievements

Achievement: StarstruckAchievement: Arctic Code Vault Contributor

Achievements

Achievement: StarstruckAchievement: Arctic Code Vault Contributor

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devendrabhumca12/README.md

About Me

Engineering philosophy, in four habits

I'm a Staff iOS Engineer at Nagarro Software, with 10+ years across Swift, SwiftUI, and Objective-C — specializing in app architecture, performance optimization, and mobile solutions that hold up at scale. Over that decade I've shipped an enterprise banking super-app (Emirates NBD's ENBD X, 150+ services), consumer IoT apps (IKEA Home Smart, NETGEAR Orbi & Nighthawk), and everything in between — while mentoring engineers on iOS best practices, debugging, and modern workflows along the way.

Architecture first. MVVM and MVVM-C, Clean Architecture, SOLID, and modular design — built to stay reliable as a codebase and team grow, not just to look tidy on day one.

Performance & concurrency, deliberately. async/await and GCD used where each actually fits, with performance treated as a first-class concern rather than an afterthought.

AI-assisted, not AI-replaced. Cursor, GitHub Copilot, and Claude are part of my daily workflow, driven by deliberate prompt engineering — used to raise code quality and ship faster, never to skip understanding the system underneath.

Always learning. GenAI & MCP-certified, a Cursor Hackathon team lead, and currently exploring React Native, visionOS, and on-device AI — staying a hands-on builder, not just an architect on paper.

Tech Stack

Tools I reach for by default
Languages
Apple Frameworks
On-Device AI
Architecture
Concurrency & Performance
Networking & Storage
Testing & Tools
AI-Assisted Engineering
Cross-Platform & Emerging

Featured Projects

Published apps, live on the App Store

ENBD X — Emirates NBD · Finance
Mobile banking app covering 150+ services — accounts, cards, transfers, and investments. Designed and built reusable components for the Payments and Lending modules.

Swift SwiftUI Modular Architecture

App Store · status

IKEA Home Smart — Inter IKEA Systems · Lifestyle
Smart home control for the TRÅDFRI ecosystem — lighting, blinds, connected devices. Built Google Assistant & Amazon Alexa integrations and the Sonos integration.

Swift SwiftUI Voice Assistant Integrations

App Store · status

NETGEAR Orbi & Nighthawk — NETGEAR · Utilities
Companion apps for mesh WiFi (Orbi) and router (Nighthawk) lines. Owned onboarding for both apps, plus security features and remote network management.

Swift SwiftUI REST APIs

Orbi on App Store · Nighthawk on App Store · status

Wedding Vows App — Binary Geckos · Entertainment
Guest-entertainment app for weddings — photos, event details, dress code, video reels. Built solo from scratch through live release: architecture, features, testing, and shipping.

Swift SwiftUI

App Store · status

Flagship Case Study — FormEasy   View on GitHub →
Problem → Architecture → Result

Problem — Upload portals (government, job, exam, KYC) reject files for narrow, mechanical reasons. Generic converters require uploading personal photos and ID documents to a third-party server.

Constraints — No backend, no accounts, no uploads: every step of crop, resize, compress, and format conversion had to run entirely on-device.

Solution — A bare React Native + TypeScript app (native image modules, not Expo) that takes a photo and a portal's stated requirements and produces a file guaranteed to match.

Architecture — Feature-based folders, not layered. A UI-free imageProcessing service holds the crop-rectangle math and JPEG quality binary search as pure functions — testable in Jest, no simulator required.

Trade-offs — Automatic center-crop instead of an interactive crop UI, to avoid gesture-handling dependencies. PDF support intentionally left out.

Result — A working offline-first pipeline with an honest Ready to Upload / Best Effort / Could Not Meet Requirements status — it never silently claims success when a size budget can't be met.

React Native TypeScript Jest On-Device Image Processing

Architecture Expertise

The foundations I build on




Open Source

On-device AI explorations and tools other engineers use

FindKeep
On-device search across screenshots and photos using natural language — hybrid BM25 + semantic embeddings + tag matching, Vision OCR and SwiftData, entirely offline.

MedsPlain
Scans a medicine label and turns dense dosage text into a plain instruction card using Vision OCR and Apple Foundation Models — no cloud AI, no backend.

ActionBrief
Converts messy notes into a structured action checklist using on-device Apple Foundation Models, with a local NaturalLanguage fallback when they're unavailable.

Multipeer-ChatApp
Swift/SwiftUI framework for exchanging text and images directly between iOS devices over MultipeerConnectivity, with Core Data-backed persistence.

  


NetworkManager — a lightweight Reachability/internet-connection library in SwiftUI  ·  CustomAlertView — a customizable, reusable alert view for iOS in SwiftUI


GitHub Analytics

The numbers behind the commits





3D Contribution Calendar
Rendered by github-profile-3d-contrib.



Contribution Snake
Rendered by Platane/snk.


Professional Journey

10+ years, four companies
09/2021 – Now│Staff Engineer – iOS · Nagarro Software, Noida
Own reusable, scalable technical solutions across multiple projects, partnering with product, backend, QA, and design. Mentor engineers on iOS best practices, debugging, and performance tuning. Bring AI-assisted development (Cursor, Copilot, Claude) into daily engineering.
08/2019 – 09/2021│Senior Software Engineer – iOS · Altran (now Capgemini Engineering), Gurugram
Shifted focus toward app architecture, performance optimization, and concurrency handling, with CI/CD and unit testing built into daily practice. 2× "WOW Individual Excellence."
09/2017 – 08/2019│Senior Software Engineer – iOS · VVDN Technologies, Noida
Delivered end-to-end iOS features in Swift/SwiftUI with modular architecture, owning deployment and production releases. "Gems of the Year" 2018–19.
07/2015 – 08/2017│Software Engineer – iOS · Mobulous Technologies, Noida
Owned complete iOS app delivery — from development through App Store release — across Objective-C and Swift projects. Integrated and maintained third-party SDKs for maps, analytics, and payments.
Education  ·  MCA, Banaras Hindu University (BHU), Varanasi (2012–2015)  ·  BSc, CSJM University, Kanpur (completed 2011)

Achievements

A decade plus, in numbers


Years Experience
App Users Reached
Published Apps
Employee of the Quarter
Open-Source Libraries
MCA Entrance Rank

Also: 2× WOW Individual Excellence (Altran/Capgemini)  ·  Gems of the Year 2018–19 (VVDN)  ·  Cursor Hackathon Team Lead  ·  GitHub Copilot Hackathon Contributor  ·  GenAI & Agentic AI certified ("Generative AI for Beginners", "MCP: Hands-On with Agentic AI")


Current Focus

What I'm deep in right now



What Colleagues Say


"I had the pleasure of working with Devendra, and I can confidently say he is an exceptional iOS developer. His deep expertise in Swift and iOS architecture, combined with his problem-solving skills, makes him an invaluable asset to any team. Beyond his technical abilities, Devendra is a fantastic team player — he collaborates effectively, shares knowledge generously, and always contributes to a positive, productive work environment."



Kshitiz Agnihotri — Chief Engineer, worked together on the same team


"Great software is invisible.
The experience is remembered, not the implementation."


Let's Build Something

Open to Staff/Senior iOS roles where architecture, mentorship, and AI-assisted engineering matter



Popular repositories Loading

  1. CustomAlertView CustomAlertView Public

    CustomAlertView is a customizable alert view for iOS apps written in SwiftUI. It allows you to easily display alerts with custom titles, messages, buttons, and images.

    Swift 19

  2. NetworkManager NetworkManager Public

    NetworkManager is a lightweight Reachability/Internet Connection library written in SwiftUI.

    Swift 13 1

  3. RatingView RatingView Public

    RatingView is a custom SwiftUI view for displaying and selecting ratings using star icons.

    Swift 4

  4. visionProDemo visionProDemo Public

    VisionPro Demo: Explore the power of VisionPro in iOS with this compact project written in swiftUI.

    Swift 2

  5. ToastView ToastView Public

    The easiest way to display highly customizable in app notification banners in iOS for iOS9.0 + in swift 5.0

    Swift 1

  6. Multipeer-ChatApp Multipeer-ChatApp Public

    A Swift and SwiftUI-based framework demonstrating Multipeer Connectivity integration for exchanging text messages and images between iOS devices. Features include CoreData integration for message p…

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