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Nedim Fakić

Senior Mobile Engineer with focus on iOS development and security based in Europe

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About Me

Mobile Engineer

I am a highly motivated problem solver with a strong focus on creating complex products with an emphasis on security. I have a passion for finding solutions and delivering high-quality products.

Hi! My name is Nedim and I am an iOS Engineer at HTEC Group and part-time senior iOS consultant at Proxify. In my free time, I am building a self-hosted mobile analytics platform, which includes developing SDKs and deployment tooling. I have a passion for researching apps and understanding how they work.

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Portfolio

My Projects

  • Details

    FS Tool

    iPadOS app

    Contract for Feldschloesschen internal iPadOS app enhancing stores visit management primarly used by managers to visualise advanced data tables. Implemented Vision framework for efficient store code scanning and utilized SwiftUI for complex UI state management.

    Peer from Software Brauerei AG
    “I can highly recommend Nedim. He is not only very knowledgeable and reliable, but also great to work with. Nedim is one of those rare individuals whom you can present with even the most challenging problems, and he will return with a solution that exceeds your expectations.”
    • Technologies
      • Swift
      • SwiftUI
      • Vision
      • Swift Async/Await
      • Combine
    • Date September, 2023
    • Key Points
      • Functions of this project's are not public.
  • Details

    Redacted

    iOS SDK

    Developed an iOS SDK for the largest telecommunications provider in the US. Worked on building it from the ground up. Responsible for the project's architecture and execution. The SDK was developed and deployed, adhering to all industry standards.

    • Technologies
      • Swift
      • UIKit
      • Combine
      • CI/CD
    • Release Date Jan, 2024
    • Key Points
      • Functions of this project's are not public.
  • Details

    Redacted

    iOS app

    Development of a language interpreter service, introducing features like voice/video calls and appointment sharing. Addressed complex architectural issues, showcasing problem-solving skills.

    • Technologies
      • Swift
      • UIKit
      • CallKit
      • RxSwift
      • CI/CD
    • Date June, 2022
    • Key Points
      • Functions of this project's are not public.
  • Details

    Tweetly

    Download from App Store | Tweetly Landing Page

    iOS app to transform a boring looking tweet to astonishing masterpiece ready to be shared on all social platforms

    Tweetly helps you to create astonishing Tweets that you can share on all of your social media in seconds, unlock your creativity with vast customizable options, go above and beyond in your creative ways! Tweetly is opening new doors to your social marketing strategies With Tweetly you can drastically improve your social media reach. Spend time on writing your content and use Tweetly to share its value across all of your brand platforms. Tweetly top-notch features:

    • Pin Tweet to any video and revolutionize your marketing strategies
    • Search for over 1M+ photos or use your own as background.
    • You can customize every aspect of your Tweet.
    • By using our powerful 'Dynamic Colors', Tweets will adapt to your background automatically
    • Utilize a vast variety of supported Tweet layouts
    • Create Instagram worthy content and share with your followers right from the app
    • Copy Tweets without saving them on your device and just paste them right into any popular messaging apps
    • Create award-worthy Fleets
    • Technologies
      • Swift
      • UIKit
      • AVFoundation
    • Date December, 2020
    • Key Points
      • Consumed Twitter, Unsplash, Pexels RESTful API
      • Created costume tweet layouts
      • Rendering video with layer on top of it in FULL HD
      • Handle 1000s of customer requests
      • Bug free: 99% up rate
  • Details

    Travel Travnik AR

    Download from App Store | Code on GitHub

    iOS app to experience city of Travnik trough AR and assist tourists by smart routing new visit

    Travel Travnik AR is app that lets you experience Travnik City in totally new way! If you are bored with current way of researching cities and learning about historical important monuments this app is for you! Explore history trough AR, learn about all the monuments by positioning your phone in 3D space! App contains 30+ handpicked locations that you can visit while in city App also has advance turn-to-turn navigation currently in experimental phase!

    • Destination Rich Travnik City Map
    • Read About Monuments in AR
    • Information About City Monuments
    • Information About City Restaurants
    • Technologies
      • Swift
      • UIKit
      • SwiftUI
      • MapKit
      • ARKit
      • CoreLocation
    • Date October, 2021
    • Key Points
      • Turn to Turn navigation, as seen in Google Maps or Apple Maps
      • Mix of SwiftUI and UIKit to achieve fast development time
      • ARKit scene and special layer formatting
      • 100s of locations entered by hand
      • Bug free: 95% up rate
  • Details

    ARDeck

    Source code not available.

    iOS app that uses hand gesture recognition to trigger actions in the streaming program OBS.

    ARDeck was 24-h effort of team, their Twitter handles: @asilver, @Ezra_Black_, @sammcgxrry One of my teammates wrote blog post about our journey, check it here link to Alex's Medium Article

    • Technologies
      • Swift
      • UIKit
      • ARKit
      • Vision
      • Websockets
    • Date January, 2021
    • Key Points
      • Built a functioning prototype in 24 hours
      • Built communication between OBS and iOS app trough websockets
      • Trained MLModel to recognize different hand posses
      • Used ARKit and Vision framework
      • Bug free: 95% up rate
  • Details

    BicmXCall

    Source code not available.

    iOS app that imitates soft phone, capable of making and accepting calls.

    • Technologies
      • ObjC
      • CallKit
      • UIKit
    • Date June, 2021
    • Key Points
      • SIP phone with support for any VoIP server
      • Fetch contacts using CallKit
      • Save data in local storage using SQLite
      • Resolve calling states
      • PJSIP building and integration
      • Complex AutoLayouts views in ObjC manner
  • Details

    NOC

    Source code not available.

    iOS app that shows complex network metrics in simple custom views.

    App contains numerous screens and features, that are still in active development, hence can't be disclosed, and it's labeled as internal tool.

    • Technologies
      • Swift
      • SwiftUI
    • Date August, 2021
    • Key Points
      • Product Owner
      • Consuming RESTful API
      • Complex custom layouts to showcase information in compact way
      • List of data fields
      • Complex Graph Metrics
  • Details

    Internal Tool

    Source code not available.

    iOS app that mocks network requests for testing company's flagship product.

    App contains numerous screens and features, that are still in active development, hence can't be disclosed, and it's labeled as internal tool.

    • Technologies
      • Swift
      • SwiftUI
      • Realm
      • CocoaAsyncSocket
    • Date Dec, 2021
    • Key Points
      • Product Owner
      • Advanced Socket communication
      • Complex custom layouts to showcase information in compact way
      • List of data fields
  • Details

    [REDACTED]

    Source code not available.

    iOS app to share photos and videos as strips.

    Worked as solo developer on iOS side, in which time I've added features such as:
    • Watermarked content
    • Tagging on canvas, rendering tags in feed
    • Archive posts
    • Chat
    • Sharable links ex.(appname://user?=nedimf&postId=3)

    App contains numerous screens and features, that are protected under NDA.

    • Technologies
      • Swift
      • UIKit
      • Firebase
      • Storyboard
      • Deep-Links
    • Date April, 2020
    • Key Points
      • Complex archived codebase
      • High delivery standard
      • Innovative solutions
      • Complex layouts with high responsiveness
  • Details

    TrackIT

    Code on GitHub

    iOS app for tracking infections in communities.

    Application is light-weight because of a limited number of libraries that are used in development. We strived to achieve as many as possible without requiring an external library. This project has been completely free of CocoaPods and every library was implemented trough Swift Package manager to ensure greater stability. User interface stability has been achieved mostly using a storyboard. App user interface follows Human interface guidelines.

    • Technologies
      • Swift
      • CoreBluetooth
      • Realm
    • Date April, 2020
    • Key Points
      • Product Owner
      • Consuming RESTful API
      • CoreBluetooth communication, and testing BLE devices
  • Details

    RedditSticker

    Source code not available.

    iOS app for sharing Reddit posts as stickers that can be pinned on Instagram stories.

    • Technologies
      • Swift
      • Storyboard
      • CoreImage
      • Regex
    • Date April, 2020
    • Key Points
      • Consuming RESTful API
      • Regex parsing to check if reddit post is valid
      • Saving as Photo
      • Share generated CoreImage
  • Details

    Najt

    Source code not available.

    Kotlin Multiplatform app for experiencing night out in totally new and unique way.

    Najt is KMM app that I've started developing in summer of 2021, so far app is finished 60% where backend and good portion of Android layouts have been implemented! App development was delayed, but not halted.

    • Technologies
      • Kotlin Multiplatform
      • Ktor
      • Coil
      • Websocket
      • Camera2
      • XML Layouts
    • Date June, 2021
    • Key Points
      • Consuming RESTful API
      • OTP to register an account
      • Uploading files
      • Websockets connection to feed data in realtime
  • Details

    NOC

    Source code not available.

    Android app that shows complex network metrics in simple custom views.

    App contains numerous screens and features, that are still in active development, hence can't be disclosed, and it's labeled as internal tool.

    • Technologies
      • Kotlin
      • Retrofit
      • Material Design
    • Date June, 2021
    • Key Points
      • Product Owner
      • Consuming RESTful API
      • Complex custom layouts to showcase information in compact way
      • List of data fields
      • Complex Graph Metrics
  • Details

    MASK - AQI monitoring

    Download from Play Store

    Android app to monitor air quality in the world, with unique ability to compare cities worldwide. Mask's main function is to be a useful companion in your day to day routine.
    Mask is built by having simplicity in mind. Every aspect is modular and easy to understand.
    Mask provides you the ability to learn about various harmful pollutants in the air.
    By using always on top notification technology Mask lets you to always be notified about air quality data even if the app is closed.
    Main features:

    • Powerful AQI monitoring
    • Showing precautions that you should take on various AQI levels
    • Robust analytics and comparison between 2 cities
    • Information about various pollutants (SO2, NO2, CO, H, PM2.5, PM10)
    • Always on top notification for easy access
    • Share air quality data with your friends and family and keep them safe

    Mask app has received great traction on its launch, and so far have been downloaded 1000s of times, mostly in Bosnia and Herzegovina. I've presented this app on numerous TV appearances, most notably on national TV channel N1 in January 2020.
    Some interviews I've done for this app:


    I was approached with an offer to do 5-minute short movie for the project "Ways of the Heroes" about this app in June, 2021. Movie was done by team at Eho Animato
    Watch 5-minute documentary

    • Technologies
      • Kotlin
      • Retrofit
      • Mapbox
      • XML Layouts
    • Date January, 2020
    • Key Points
      • Consuming RESTful API
      • Response to 10s of features requests
  • Details

    Bond Gallery

    Source code not available.

    Android app to make bond calculations easy


    Bond Gallery is bond calculation app. In app there is options to:

    • Apply for Home Loan
    • Bond Affordability calculator
    • Bond Repayment calculator
    • Bond and Transfer Cost calculator
    • FAQs


    App also had Node service attached to it to generate PDF for bond repayment.

    Client words after I've completed project:

    "Nedim is a very good developer for Android mobile application, I was very happy with his communication, work ethic and the way that he did this work, I will always use him again and recommend him to anyone who needs a good android developer! Thank you Nedim!"


    App was done for client from South Africa. App is only available in South Africa.

    • Technologies
      • Java
      • Firebase Database
      • Calculations
      • NodeJS
      • XML Layouts
    • Date June, 2019
    • Key Points
      • Advance calculation
      • Downloading files
      • Following designer mockup
      • Custom layouts
      • Custom navigation behaviour
  • Details

    Gapp

    Source code not available.

    Android to help students keep track of all the events and important school-related activities.

    Never miss out on school ads that can be of great importance to you and your education. An online library is one of the options provided by this application. All the books are at your fingertips. Here you can find some of the students who have left a positive mark on our school. In addition, you have access to a sos box that is there to solve your problems. The Sos box is a place where you can write anonymously all the problems you have inside or outside the school, all the suggestions and suggestions for the school work.
    The app contains:

    • School Ads
    • Class ads
    • A school online library
    • SOS box
    • and more

    • Technologies
      • Java
      • Firestore
      • Notifications
      • XML Layouts
    • Date April, 2019
    • Key Points
      • Simple design for students
      • Notification delivery
      • Fetching files
  • Details

    ZeForge App

    Demo Video

    Android to app developed for ZeForge community to track meetup attendance.

    • Technologies
      • Java
      • Firestore
      • XML Layouts
    • Date January, 2018
    • Key Points
      • Simple design for attendees
      • QRCode scanning
      • CRM feature inside of app, to schedule/cancel next meetup
  • Details

    Spark Airlines

    Demo Video

    Android to help schedule fake flights


    Spark airlines is flight booking application developed for Spark school final project.This application contains Firebase as main database for real time booking and interacting with the application.
    App was done in team of 3, as final project for Spark Android Certificate.

    • Technologies
      • Java
      • Firebase Database
      • XML Layouts
    • Date April, 2017
    • Key Points
      • Dual user privileges
      • Custom layouts
  • Details

    SSL Bypass Instagram

    Source code not available.

    Custom SSL Pin Bypass for Instagram iOS app using Frida injection.

    SSL Bypass for Instagram by patching runtime with custom Frida injection. This bypass provided option to trace Instagram network calls.
    Note: Instagram falls under HackerOne safe disclosure

    • Technologies
      • Javascript
      • Frida
      • Hopper Disassembler
    • Date April, 2021
    • Key Points
      • Bypass SSL protection
      • Monitor Instagram app network traffic
  • Details

    Twitter Trace

    Source code not available.

    Dissecting of Twitter iOS app to learn under the hood behavior.

    Dissected Twitter iOS app and tracing 80% of app methods, trough use of Frida and Objection. Managed to trace numerous methods, as well as manipulate data sent to server by implementing Frida injections.
    Note: Twitter falls under HackerOne safe disclosure

    • Technologies
      • Javascript
      • Frida
      • Grape
      • Objection
      • MITMProxy
    • Date April, 2021
    • Key Points
      • Trace methods in realtime
      • Monitor Twitter app network traffic
      • Inject custom method
      • Map method and UI structures
  • Details

    InstallMe

    Code on GitHub [Pending Release]

    InstallMe aims to solve pain of writing install.sh script everytime you want to deploy new CLI.

    InstallMe is simple but powerful robust binary that solves issue of writing install.sh scripts for your CLI projects. This project is written purely in Go and it has features such as YAML, parsing and advance CLI packed with UI animations.

    • Technologies
      • Go
      • Yaml Parser
      • Cobra CLI
    • Date June, 2021
    • Key Points
      • Writing Cobra structure CLI
      • Contacting GitHub and obtaining authorizations
      • Resolving zipped files to install binaries
      • Fetching public/private releases
      • Parsing valid GitHub links
      • Parsing YAML file as instruction to CLI how to install binary
      • Documentation
  • Details

    Vmob

    Code on GitHub

    Vmob is CLI tool that cross compiles V written module for use in iOS/Android architectures through C layer.

    Vmob was born from the idea of using an already written V module in the iOS app. Preferably you would write your module/library once and you could utilize its functions on both iOS and Android simultaneously.
    Full docs explaining how Vmob works

    • Technologies
      • V
      • Swift
      • C
    • Date April, 2021
    • Key Points
      • Translation V to C
      • Making C code compatible with iOS
      • Injecting headers
      • Exporting .a library to be linked in Xcode project
      • Documentation
  • Details

    SMTP inside V

    Code on GitHub

    SMTP inside V is support for SMTP protocol for new V language

    V language lacked vital ability to send e-mails. I've joined V Discord, and started learning language while developing V's official STMP module. Module is pure implementation of RFC2821 where client communicates with e-mail server trough series of commands, to achieve active relationship. Module later added support for sending attachments.

    • Technologies
      • V
      • Socket
    • Date July, 2020
    • Key Points
      • Implementation of RFC 2821
      • Documentation
  • Details

    Maildroid

    Code on GitHub (160+ ⭐️)

    Maildroid is a small robust android library for sending emails using SMTP server.

    Maildroid was born from the frustration of implementing a good emailing solution I had while developing a few client apps. I had to do many hours of unneeded work to make some emailing functions work using old libraries. Those libraries were limited to one SMTP server and because of that frustration Maildroid was born.
    Features

    • Sending emails using SMTP protocol
    • Compatible with all SMTP providers
    • Sending HTML/CSS styled emails
    • Library is using Java Mail API that is well known as best library for sending emails

    Maildroid is my most most active open source project and have had 11 releases in past 3 years. Library accumulated 6 contributors as well as 100s of GitHub stars.
    Maildroid has been used over 100k times across all versions. It has monthly usage of 1.2k, which is 1.2k apps actively utilizing Maildroid features.

    • Technologies
      • Kotlin
      • Jakarta Mail
    • Date August, 2019
    • Key Points
      • Supporting multiple SMTP servers
      • Send attachments
      • Handle failed sends
      • Documentation and Maintaining
  • Details

    STN-Node Service

    Code on GitHub

    Say Their Name Node service that handles URL shortenings and meta data handlings

    Say Their Names project aim is to build an open-source platform that raises awareness of the injustice and often forgotten names of racial inequality at the hands of law enforcement. It strives to identify and amplify verified organizations to ensure donations are reaching those who can make the most impact with it.
    Features

    • Serving AASA file for deep linkage
    • Creates link and sends back to client
    • Returns original value for exchange for shorten URL
    • Technologies
      • Node
      • Express
      • CI/CD
      • Swagger
    • Date Jun, 2020
    • Key Points
      • Support for AASA file serving
      • Working with team of 100 developers
      • Exchange values
      • Documentation
  • Details

    Blazing Report

    Private SaaS

    Blazing Report is first self-hosted mobile analytics platform with focus on privacy and optional metrics gathering.

    Blazing Report is project that is in heavy development stage. Project is structured as Go written array of gRPC microservices to handle various tasks, such as gathering metrics, account management as well as generating reports on usage.
    Blazing Report as well contains of Web app, that represents Dashboard to view gathered metrics and setup preferences.
    Blazing Report has iOS SDK written to gather all metrics needed by app developer, and connects to superfast gRPC microservices.

    Coming soon: Check Blazing Report

    • Technologies
      • Go
      • gRPC Gateway
      • Protos
      • MongoDB
      • Swift
      • Vue
      • Kotlin
      • Javascript
    • Date Active Development
    • Key Points
      • Built Go powered gRPC microservice architecture to gather & store analytical metrics.
      • Built iOS SDK to communicate with gRPC server and gather mobile metrics
      • gRPC to REST gateway full on support for Swagger documentation
      • Built Web App in Vue to manifest customer's dashboard with all gathered metrics
      • Deployed on VPS under Nginx with capability of HTTP/2 and TLS connections
      • PayPal Payment System
      • Schedule Reports Demon
      • Advance Account Management
      • Complex Project Wizards
      • Documentation
  • Details

    Najt

    Private SaaS

    Najt server was written to handle user actions and to handle websocket connection to platform from KMM apps.

    Najt server is capable of handling 1000s of simultaneous connections as websocket server. Server is also capable of receiving files from client and storing to Google Bucket. Najt server is as well responsible for all operations that user does in app, as well as algorithm of creating custom feeds.

    • Technologies
      • Go
      • Gin
      • MongoDB
      • Websocket
    • Date Frozen Development
    • Key Points
      • Writing websocket with auth actions
      • Storing files from apps to Google Bucket
      • Algorithmic response for feed
      • CRUD operations for accounts and [redacted]
Tech Stack

Technologies and Languages I've used

  • Swift

  • Frida

  • Go

  • Javascript

  • Bash

  • Kotlin

  • Objective-C

  • Python

  • C++

  • Java

  • Ngnix

  • Linux

  • iOS and MacOS

  • Android

  • MongoDB

  • SQLite

Blog

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