Sahil Saini

Software Developer

Profile

Senior-level software developer with 10 years industry experience working in React, JavaScript, Swift, Objective-C. Creative, independent, motivated team worker with experience managing small teams. Analytical thinker with strong trouble-shooting, problem-solving, and debugging skills. Proven record delivering applications with great user experience and a high degree of polish.

Experience

Lead Engineer, Y MEDIA LABS (Aug 2022 – Present)
Evaluate customer requirements, for banking app that has a user base of more than a million users. Securing user data and giving user best UX is core of the application. Led rapidly prototype iOS applications. Worked on opensource projects to increase productivity for many projects. Design and develop applications like YCalendarPicker, YStepper that supports UIKit as well as SwiftUI. Lead team in supporting offline storage for CoreData in YPersistence and achieved a code coverage of over 90% in all open source projects.

Lead Engineer, Sopra Steria Pvt. Ltd (Oct 2018 – Aug 2022)
Led development of enterprise as well as government funded applications. Challenges included face detection/recognition, taking voice command, supporting text to voice and vice-versa. Followed OWASP guidelines to protect user data. Extensive experience working with the full product team from designers to product managers in order to deliver robust and delightful end user solutions. While working on the Digital Wallet project, I focused on creating a user-friendly interface that helps users digitize their documents effectively. I implemented features such as secure document storage and easy retrieval, ensuring a seamless digital experience for the users. This included encryption of sensitive information, implementing secure authentication methods, and regularly updating security protocols to mitigate any potential vulnerabilities.

Sr Software Developer, VCare Technologies Pvt. Ltd. (Feb 2017 - Oct 2018)
Worked on various iPad, iPhone applications with extensive experience in debugging, problem-solving, performance optimizations and crisis management. Migrated to Swift for future perspective. Started exploring design patterns and architectures like MVVM, VIPER, Delegate etc. Stared writing code with TDD and POP approach. Experience includes leading iOS development teams based in both India and the U.S., and mentoring junior engineers.

Sr Software Developer, eCIfM India Pvt. Ltd. (Jun 2016 – Feb 2017)
Gather customer requirements and craft solutions to key components and complex problems. Developed approval management app for in-house use. Worked on construction management project to calculate and estimate project cost, resources. Used CoreData for offline support.

Software Developer, CSSI India Pvt. Ltd. (Jan 2014 – Jun 2016)
Developed MacOS utilities for recovering lost data. Gained experience of researching more than 50+ file format, root access to read user storage. Understanding of implementation of many wiping techniques like DOD America, NASA, Gutmann method to erase user data to permanent delete.

Apps (Recent)

Lead Developer – CreditOne
CreditOne mobile application allows users to conveniently manage the credit cards accounts through their mobile devices. It allows users to schedule one-time or monthly payments and view account activity, balances, payment history, offers and much moreDesigned and built network stack, authentication layer, data model combined with UI. Schedule one-time or monthly automatic payments and view account activity, balances, payment history, offers, and more! SSL certificate pinning, cryptographic protocol Transport Layer Security (TLS),Disabled Cross Site Scripting (XSS) are some of the techniques used to protect user data.

Lead Developer – Open-source projects
Worked on many open source project to support teams to reuse the components. Some of the projects are YCalendarPicker, YStepper, YPersistence. Contributed to many open source projects to fix open issue or support new versions like YCoreUI. These includes more then 90% code coverage, support for dynamic text, accessibility and more. In YPersistence, implemented offline support by incorporating data caching mechanisms and background synchronization processes. This allowed the application to seamlessly transition between online and offline modes, ensuring data persistence and user experience consistency. Reusable components are designed with modularity and abstraction in mind. We ensure clean separation of concerns, adhere to design patterns like delegation and extensively document usage and APIs. Additionally, we conduct thorough testing to validate the components’ functionality in various scenarios.

Lead Developer – Vodafone Support Agent
Use voice command to create, update and add notes/tickets to internal Jira board of Vodafone, which login through OAuth. Also have dark mode with multi-lingual support at app level. Speech to convert voice to text, Use of Microsoft cognitive services, Auto mic to make things effortless, Integration of Dark mode and multiple language at app level are some of the features. Voice commands were integrated using SpeechKit to capture audio input and convert it into text. Microsoft cognitive services aided in natural language processing for command recognition and processing. OAuth authentication ensured secure access to the internal Jira board of Vodafone.

Lead Developer – Age verification
This app generates a digital ID ( with OTP ) through user passport by reading NFC chip integrated in the passport. Generate QRCode to verify user info. Uses CoreNFC to read NFC chip data, Vision framework is used for face detection and recognition.

Sr. Software Developer – UKVCAS
A UK government project to make visa process online. Uses some of the features of Age verification. Liveliness was another great feature to identify user for authentication. Employing advanced OWASP security techniques to safeguard user data. Collaborated closely with cross-functional teams to deliver robust end-user solutions.

Sr. Software Developer – Diro Phonebooks
Provide the users an efficient way to create, manage and share contacts through different groups that provides different access rights to the group/phonebook members. A complete redesign and rewrite of whole project to add swift support, while doing so added use of MVVM, VIPER to follow SOLID Principles.

Sr. Software Developer – Approval Management Application
Provides list of tasks assigned, to approve or to reject, for all iOS devices and every orientation. Used core data for off-line mode.Use of Story-board, Constraints for different UI orientations. Save user data with the help of Core Data and User Default to provide offline support.

Software Developer – Mac utilities Experience of working with mac utiliyties including recovery software to un-delete various Documents, Photos, Audios, Videos and Mac file system. Research is done on different file formats because every bit matters. Sector by sector memory processing with root authority. Erase data beyond recovery with a number of options to choose from including DOD America, NASA, Gutmann method etc. From two passes to 35 passes to never get the erased data. Increase efficiency by using multithreading concept.

Education

B.Tech from Jind Institue of Engineering and Technologies, Kurukshetra University – Aug 2013

Skills

React, JavaScript, HTML, CSS, Swift, Objective-C, SQL. Core Animation, Core Graphics, Core Data, UIKit.