Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I’m Arif, a senior iOS engineer with a passion for clean architecture and scalable mobile experiences. I’ve led iOS development across APAC and globally, shipping features with Swift, SwiftUI, and Combine, and mentoring engineers to raise code quality. I enjoy turning complex challenges into robust, testable code and empowering teams to deliver value at speed. I thrive on collaboration across product, design, and QA to improve user engagement and business outcomes. Outside code, I’m curious about how different domains intersect—fintech, e‑commerce, and analytics—and I’m always looking for ways to optimize performance, reliability, and developer happiness.…Hi, I’m Arif, a senior iOS engineer with a passion for clean architecture and scalable mobile experiences. I’ve led iOS development across APAC and globally, shipping features with Swift, SwiftUI, and Combine, and mentoring engineers to raise code quality. I enjoy turning complex challenges into robust, testable code and empowering teams to deliver value at speed. I thrive on collaboration across product, design, and QA to improve user engagement and business outcomes. Outside code, I’m curious about how different domains intersect—fintech, e‑commerce, and analytics—and I’m always looking for ways to optimize performance, reliability, and developer happiness.

Arif Husain Bhai Sumrasen

App Developer, Programmer, Developer, +5





Hi, I’m Arif, a senior iOS engineer with a passion for clean architecture and scalable mobile experiences. I’ve led iOS development across APAC and globally, shipping features with Swift, SwiftUI, and Combine, and mentoring engineers to raise code quality. I enjoy turning complex challenges into robust, testable code and empowering teams to deliver value at speed. I thrive on collaboration across product, design, and QA to improve user engagement and business outcomes. Outside code, I’m curious about how different domains intersect—fintech, e‑commerce, and analytics—and I’m always looking for ways to optimize performance, reliability, and developer happiness.…Hi, I’m Arif, a senior iOS engineer with a passion for clean architecture and scalable mobile experiences. I’ve led iOS development across APAC and globally, shipping features with Swift, SwiftUI, and Combine, and mentoring engineers to raise code quality. I enjoy turning complex challenges into robust, testable code and empowering teams to deliver value at speed. I thrive on collaboration across product, design, and QA to improve user engagement and business outcomes. Outside code, I’m curious about how different domains intersect—fintech, e‑commerce, and analytics—and I’m always looking for ways to optimize performance, reliability, and developer happiness.

Available to hire

Hi, I’m Arif, a senior iOS engineer with a passion for clean architecture and scalable mobile experiences. I’ve led iOS development across APAC and globally, shipping features with Swift, SwiftUI, and Combine, and mentoring engineers to raise code quality. I enjoy turning complex challenges into robust, testable code and empowering teams to deliver value at speed.

I thrive on collaboration across product, design, and QA to improve user engagement and business outcomes. Outside code, I’m curious about how different domains intersect—fintech, e‑commerce, and analytics—and I’m always looking for ways to optimize performance, reliability, and developer happiness.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Japanese

Advanced

German

Intermediate

Work Experience

Senior iOS Engineer, Shopping and Checkout Tribe at HelloFresh SE

March 31, 2025 - August 6, 2025

Led high-impact initiatives such as AutoSave, CartRevamp, MealSelection, and Subscription Add-ons using SwiftUI and concurrency, resulting in a 1.4% AOV increase in the Cart, translating to millions in revenue. Refactored legacy core selection logic to reduce conflicts and improve quality, covered missed unit tests, and automated manual tests significantly reducing the number from 32 to 11. Managed and mitigated critical cart domain issues and wrote post-mortems. Enhanced operational excellence by integrating Firebase performance traces and configuring metrics alerts on Grafana. Fostered a strong code review culture promoting continuous improvement among developers.

Tech Lead - Mobile Team (Japan) / Interim Group Head of iOS at Monstarlab, Inc.

March 31, 2022 - August 6, 2025

Created a global iOS app template with Combine, UIKit, and MVVM+Coordinator architecture reducing project setup time drastically. Contributed to iOS standardisation and global strategies with CTO Office and regional leads. Managed team skills alignment, conducted 1-on-1s, led tech talks and team gatherings. Led Hyakugo Bank's smart banking app project with integrations and CI/CD setups. Led delivery of FortunePocket, a net worth aggregation app integrating financial data SDKs. Managed distributed teams across multiple countries as a bridge engineer.

Software Engineer at VISITS Technology, Inc.

June 1, 2018 - August 6, 2025

Developed base architecture using MVVM and frameworks like RxSwift and Moya for app upgrades and new developments. Refactored legacy code and storyboards to improve build times and efficiency. Set up CI tools including CircleCI, Fastlane, Crashlytics Beta, and JIRA for improved testing workflows and onboarding. Delivered new social networking features such as Home Screen and Timeline. Created reusable UI component library and mentored new engineers.

Software Engineer at Pasona Tquila, Inc.

December 31, 2016 - August 6, 2025

Contributed to a Football School mobile web app for parents using Ionic framework and Salesforce backend. Developed and maintained native and hybrid iOS apps. Participated in technology decision making for enterprise mobile solutions. Developed headcount BI solution on Anaplan platform. Contributed to Salesforce app development for a major automobile parts manufacturer including data import-export and analytical screens.

Programmer at Unikaihatsu Software Pvt. Ltd.

December 31, 2014 - August 6, 2025

Developed and delivered multiple iOS applications in-house and for clients from inception to App Store. Enhanced app performance by optimizing and restructuring core components. Contributed to AR research projects using open-source iOS libraries. Adapted and learned new technologies as required by project demands.

Technical Support Engineer at Matrix ComSec Pvt. Ltd.

June 1, 2011 - August 6, 2025

Provided technical support including configuration of network devices like firewalls, routers, VoIP devices, and servers. Assisted clients with PBX setup and system integration. Developed Python scripting tool to automate device kernel upgrades, improving efficiency. Supported pre-sales demo environment setups.

Senior iOS Engineer at HelloFresh SE

August 1, 2022 - Present

Led multi-caliber features in SwiftUI, contributed to scalable iOS architecture, and drove automation and testing to improve release velocity.

Tech Lead / Interim Head of iOS at Monstar Lab, Inc.

January 1, 2022 - September 10, 2025

Created reusable iOS project templates (UIKit + Combine, MVVM + Coordinator); co-authored global iOS guidelines; led iOS development for APAC teams; set up CI/CD and mentored engineers.

Software Developer at Visit Technologies, Inc.

January 1, 2018 - September 10, 2025

Delivered features like Home Screen and Timeline; refactored large storyboards into modular components; built reusable iOS components; established CI/CD; mentored juniors.

Senior Programmer at Unikaihatsu Software Pvt. Ltd.

January 1, 2015 - September 10, 2025

Developed native iOS and hybrid apps, improved performance with native optimizations, integrated OpenCV, and supported cross-platform app flows.

Software Developer at Circlace Inc. (Formerly Pasona Tquila, Inc.)

January 1, 2017 - September 10, 2025

Built a mobile web app for Football School parents using Ionic, CoffeeScript, and Gulp with Salesforce backend; designed and maintained native iOS and hybrid apps; contributed to tech selections and BI tooling.

Senior iOS Engineer at HelloFresh SE

August 1, 2025 - September 10, 2025

Senior iOS Engineer delivering multiple scalable features in SwiftUI with Combine, covering technical discovery, test coverage, accessibility, tracking, and A/B rollout. Refactored legacy core selection logic into a modular, protocol-oriented Combine-based component to enable cleaner architecture and scalable feature expansion. Designed and implemented Auto Save (protocol-oriented Swift module using Combine), driving ~1.4% increase in average order value (AOV) and revenue. Delivered multi-quantity add-ons, Meal Completion, and Cart revamping using SwiftUI and Combine; improved engagement. Reduced QA workload by introducing UI testing automation and performance improvements.

Tech Lead / Interim Head of iOS at Monstar Lab, Inc.

January 1, 2022 - September 10, 2025

Led iOS development, created reusable iOS project template (UIKit + Combine, MVVM + Coordinator) for scalable, consistent codebase. Co-authored global iOS 'How We Work' guidelines and a Salesforce CI/CD friendly framework. Led iOS work for Hyatt Bank across APAC teams, integrating OneSpan SDK and CI. Mentored junior engineers, set up pre-sales POCs, and contributed to enterprise mobile app strategy.

Software Developer at Circlace Inc. (formerly Pasona Tquila, Inc.)

January 1, 2017 - September 10, 2025

Built a mobile web app for Football School parents using Ionic, CoffeeScript, and Gulp with a Salesforce backend. Refactored legacy core selection logic into a modular, protocol-oriented Combine-based component, enabling cleaner architecture and scalable feature expansion.

Senior Programmer at Unikaihatsu Software Pvt. Ltd. (Mumbai & Tokyo)

January 1, 2015 - September 10, 2025

Developed and delivered native iOS and hybrid apps from scratch to App Store release. Improved performance by refactoring architecture and applying native optimizations. Contributed to AR research with OpenCV and integrated cross-platform workflows; involved in requirements, UI/UX, and full lifecycle development. Implemented in-app purchases, Newsstand, push notifications, and integrated third-party APIs (e.g., DropBox, Google Drive, Baidu Maps).

Software Developer at VisitS Technologies, Inc.

January 1, 2018 - September 10, 2025

Delivered key features for mobile/web apps, including Home Screen and Timeline, and social components. Refactored large storyboard into modular components, improving Xcode stability and reducing iteration time by up to 40%.

Senior iOS Engineer at HelloFresh SE

August 1, 2025 - September 10, 2025

Led the development of scalable iOS features in SwiftUI with Combine, from technical discovery to test coverage, accessibility, tracking, and A/B rollout. Refactored legacy core selection logic into a modular, protocol-oriented, Combine-based component, enabling cleaner architecture and scalable feature expansion. Designed and implemented Auto Save as a protocol-oriented, testable Swift module using Combine, contributing to measurable revenue growth. Delivered multi-quantity add-ons, Meal Completion, and Cart Revamp using SwiftUI and Combine, boosting engagement and contributing to AOV uplift. Improved operational efficiency by configuring Firebase traces, Grafana alerts, and reducing QA workload via UI automation, cutting manual tests from 32 to 11 and saving ~0.5 developer days.

Tech Lead / Interim Head of iOS at Monstarlab, Inc.

January 1, 2022 - September 10, 2025

Created a reusable iOS project template (UIKit + Combine, MVVM + Coordinator) for scalable, consistent codebases. Co-authored global iOS guidelines and a Career Framework with the CTO Office. Led iOS development for APAC clients (e.g., Hayak o Bank’s app) across teams, integrating OneSpan SDK and CI pipelines. Delivered FortunePocket, a network app, using Moneytree SDK from requirements to release. Mentored junior engineers on architecture and best practices, improving team output and code quality. Refactored large codebases into modular architectures, improving Xcode stability and reducing iteration time.

Senior Software Developer at Circlace Inc. (Formerly Pasona Tquila, Inc.)

January 1, 2017 - September 10, 2025

Built a mobile web app for Football School parents using Ionic, CoffeeScript, and Gulp with Salesforce backend. Developed and maintained native iOS and hybrid apps from scratch to App Store release, improving performance through architecture refactors and native optimizations. Contributed to enterprise mobile app architecture and project planning for cross-team collaboration. Supported enterprise tooling and BI initiatives on the Anaplan platform.

Senior Programmer at Unikaihatsu Software Pvt. Ltd. (Mumbai & Tokyo)

January 1, 2015 - September 10, 2025

Developed native iOS and hybrid apps from scratch to App Store release, with performance optimizations and architectural refinements. Contributed to cross-platform architecture, requirements gathering, UI/UX considerations, and project planning for enterprise mobile apps. Involved in cross-team collaboration across India and Japan to deliver robust mobile solutions.