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

I am an innovative Software Developer and technology evangelist specializing in mobile and web app development using Flutter and iOS technologies. With experience working on projects for high-profile clients, I enjoy coding, testing, debugging, and delivering high-quality solutions that meet business needs efficiently. I have led multiple projects from concept through implementation and testing, managing features for apps with millions of users and significant revenue impact. I am passionate about continuous learning and working collaboratively to drive the success of mobile application projects.…I am an innovative Software Developer and technology evangelist specializing in mobile and web app development using Flutter and iOS technologies. With experience working on projects for high-profile clients, I enjoy coding, testing, debugging, and delivering high-quality solutions that meet business needs efficiently. I have led multiple projects from concept through implementation and testing, managing features for apps with millions of users and significant revenue impact. I am passionate about continuous learning and working collaboratively to drive the success of mobile application projects.

Nemanja Nisic





I am an innovative Software Developer and technology evangelist specializing in mobile and web app development using Flutter and iOS technologies. With experience working on projects for high-profile clients, I enjoy coding, testing, debugging, and delivering high-quality solutions that meet business needs efficiently. I have led multiple projects from concept through implementation and testing, managing features for apps with millions of users and significant revenue impact. I am passionate about continuous learning and working collaboratively to drive the success of mobile application projects.…I am an innovative Software Developer and technology evangelist specializing in mobile and web app development using Flutter and iOS technologies. With experience working on projects for high-profile clients, I enjoy coding, testing, debugging, and delivering high-quality solutions that meet business needs efficiently. I have led multiple projects from concept through implementation and testing, managing features for apps with millions of users and significant revenue impact. I am passionate about continuous learning and working collaboratively to drive the success of mobile application projects.

Available to hire

I am an innovative Software Developer and technology evangelist specializing in mobile and web app development using Flutter and iOS technologies. With experience working on projects for high-profile clients, I enjoy coding, testing, debugging, and delivering high-quality solutions that meet business needs efficiently.

I have led multiple projects from concept through implementation and testing, managing features for apps with millions of users and significant revenue impact. I am passionate about continuous learning and working collaboratively to drive the success of mobile application projects.

Skills

Experience Level

Expert

Expert

Expert

Expert

Language

Serbian

Fluent

English

Fluent

Work Experience

Senior Mobile Developer - Flutter at On Running

September 1, 2024 - Present

Developed and maintained the On mobile shopping app used by over 1 million customers globally, contributing to around 10% of company revenue; responsible for end-to-end feature development including concept, implementation, and end-to-end testing. Led the OnShowtime internal retail and marketing app development, which accounts for over 70% of company yearly revenue, delivering all major features and managing cross-functional planning.

Senior Mobile Developer - Flutter at Twocents.io

September 1, 2023 - July 16, 2025

Led the end-to-end development of a mobile app for a new business network, applying agile methodologies, feature planning, design guidance, and overseeing a successful launch.

iOS Developer at VIVANT, Banja Luka

July 1, 2022 - July 16, 2025

Developed an iOS social media app with features including live video/audio streaming, chats, leaderboards, and other functionality.

iOS Developer at MyMixtapez

June 1, 2022 - July 16, 2025

Developed and maintained a music app focusing on audio playback, redesign, and stabilization to improve user retention and ad revenue.

Senior Software Engineer / Mobile Expert at ResolverSys

March 1, 2022 - Present

Planned, developed, and maintained various mobile and web software solutions built with Flutter, serving industries like fitness and blockchain.

Senior Mobile Developer - iOS / Flutter at Upstack.co

February 1, 2020 - Present

Created and developed innovative software solutions for clients across diverse industries, participated in cross-functional scrums, and ensured efficient, timely feature delivery.

Software Engineer at Bay42 Software Solutions, Banja Luka

February 1, 2019 - July 16, 2025

Worked on five projects for major companies in the Affiliate Marketing and Job Market fields such as Clickbooth and Restoration Media.

Technical Consultant / Lead Mobile Developer - iOS / Flutter at DVC Solutions

June 1, 2017 - Present

Worked on numerous projects primarily as an iOS Developer including mentoring and leading iOS teams, developing fitness apps, social networks, and more on contractual basis.