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Let’s talk
NIKOLA GARABANDIĆSENIOR SOFTWARE ENGINEER

Hi, I’m
Nikola.

I build mobile apps and SDKs. I currently work at Fireblocks,
building Dynamic’s embedded wallet SDKs.

See my work Novi Sad, Serbia · Working remotely
FLUTTER / C# / KOTLIN / SWIFT / UNITYSELECTED PROJECTS BELOW
CURRENT & PAST WORK
01 / SELECTED WORK

A few things
I’ve worked on.

Wallet SDKs at work.
An app of my own. A background in games.

DYNAMIC WALLET SDKs
embedded wallets
Flutter
Swift
Kotlin
Unity
Embedded wallets in mobile apps and games.SDK / 001
FIREBLOCKS · CURRENT ROLE/01

Wallet SDKs for
mobile developers.

Cross-platform SDKs · Developer experience

FlutterKotlinSwiftSDK architecture
What I worked on

I built the Kotlin and Swift SDKs largely from scratch. The Flutter SDK was already underway when I took it on; I added features, sorted out the release pipeline, and brought the development processes into line. I spend a lot of time on DevEx: how the API reads, whether the next step makes sense, and where someone might get stuck. I also work on the Unity, React, JavaScript, and React Native SDKs and help customers with integration issues.

A little more context
One customer uses the Flutter SDK in a product with 200,000 users. The Kotlin and Swift SDKs are used by enterprise customers too. I received an internal company award for this work.

fali nam
igrač.
AN APP FOR RECREATIONAL ATHLETES
17k+registered users
in the first year
Flutter app · C# backend
FALI NAM IGRAČ/02

Finding people
to play with.

Independent product · Recreational sports

FlutterC#.NETProduct development
What I worked on

Fali Nam Igrač started with a problem recreational athletes know well: finding people to play with. I led the development and built the Flutter app and C# backend. It is my own product, so my work goes beyond the code to deciding what the app needs and getting it into use.

A little more context
More than 17,000 registered users in its first year.

GAMING × WEB3
GAME
→
SDK
→
CHAIN
The Unity
Gaming SDK.
Unity · Native integrations · .NET
CHAINSAFE/03

Blockchain tools
for Unity developers.

Engineering leadership · Gaming SDK

UnityC#Web3.NET
What I worked on

I led three engineers working on the open-source Gaming SDK. We helped Unity developers add blockchain features to their games. My work included SDK releases, native plugin integrations, and Unity wrappers. I also built a .NET backend for a multiplayer demo so transactions could run on the server.

A little more context
Alongside the SDK work, I contributed to Web3Auth and Nethereum and worked with business development to understand what potential customers needed.

02 / HOW I CAN HELP

What I can
help you with.

/01

Mobile products

I build Flutter apps and C# backends. I can take on the whole application or work with your team on the parts you need help with.

FLUTTER · C# · .NET
/02

SDKs & integrations

I care a lot about developer experience. If someone has to stop and guess how an API works, I want to fix that. The names, the flow, and the small details all matter.

FLUTTER · KOTLIN · SWIFT
/03

Games & real-time systems

I worked on Isonzo from the start of development, and also on Tannenberg and Verdun. I can help with Unity, gameplay systems, and multiplayer. I teach Photon Quantum too.

UNITY · PHOTON QUANTUM · C#
03 / A LITTLE ABOUT ME

A bit
about me.

Read my résumé

I’m a software engineer from Novi Sad. I’ve spent much of my career working in C# and Unity, and now spend a lot of my time on mobile SDKs.

I like making things easier for other developers. With an SDK, the API is the part people work with every day. I want it to feel logical and pleasant to use.

I currently work at Fireblocks, on Dynamic’s wallet SDKs and integrations across several platforms. Before that, I led the Unity SDK team at ChainSafe. I also built Fali Nam Igrač for recreational athletes.

At Blackmill Games, I worked on Isonzo from the start of development, including bot AI, movement, progression, and audio. I also worked on Tannenberg and joined Verdun to fix bugs. Isonzo has sold over 200,000 copies; Verdun has sold over a million.

I enjoy teaching too. After I published my Photon Quantum 3 course, Exit Games got in touch about making educational videos together. We’ve been working together since.

Certified Unity Professional Programmer Certified Unity Instructor Internal company award · Dynamic / Fireblocks
See my Photon Quantum course
04 / RECOMMENDATIONS

People I’ve
worked with.

A few words from former teammates and managers.
These are excerpts from their LinkedIn recommendations.

He's amiable and hard working, and wrote clean code that's clear, optimised, and easy to work with for other developers. He cares about his work and puts in great attention to detail, and was always ready to help out others and tackle whatever tasks were asked of him.

Ned BirkinTechnical Designer & Programmer · Blackmill GamesWorked on the same team · February 19, 2023

His ability to break down complex problems, mentor team members, and inspire ownership has been invaluable. With a strong strategic mindset and a people-first approach, he is a key asset to any team!

Robel Getnet GeremewSenior Game DeveloperReported directly to Nikola · February 11, 2025

He is also great at communication; not afraid to ask when in doubt, but also autonomous and pro-active when the situation needs it. I hope I get the pleasure of working with him again in the future!

Thomas JagerGame Producer · WW1 Game SeriesManaged Nikola directly · February 23, 2023
More recommendations 5 more

Nikola is a highly skilled Unity developer with deep expertise in multiplayer systems and a thoughtful, strategic approach to problem solving. He delivers high quality, efficient work while bringing creativity, clear communication, and a friendly, collaborative attitude. Any team would be lucky to have him.

Giacomo MarianiUnity, C# Tech LeadManaged Nikola directly · June 4, 2025

Nikola demonstrated his skills at ChainSafe over and over again, becoming a TL and Manager in a short time. Finding solutions to every problem, organizing the Unity team and even documenting every change with detailed videos. I recommend him for sure.

Juan Manuel SpoletiSenior QA Automation Engineer · Rootstock LabsWorked with Nikola at ChainSafe · January 30, 2025

He is not only a skilled developer but also a strong communicator, ensuring that everyone on the team stays aligned and motivated. His hard work and leadership made him a great asset to the team!

Belma Gutlic BrunerEngineering, Product & Business · Developer InfrastructureSenior colleague · January 28, 2025

While working with Nikola he always took initiative when difficult tasks were being handled and was always looking to make life easier for everyone by writing good code and features that were easily testable, creating long-term QoL tools for the project and being an overall amazing person to work with!

Tea StepanićLead Producer · Blackmill GamesWorked on the same team · February 21, 2023

His desire to learn not only pushes himself to the next level, he manages to raise the bar for the entire team by sharing his knowledge. I'm incredibly glad to have had the priviledge to have worked with Nikola, and hope to do so more in the future.

Tijmen van den HeuvelFreelance DeveloperWorked on the same team · December 20, 2022
GET IN TOUCHMOBILE / FINTECH / WEB3 / GAMES

Have a project
in mind?

nikola[at]garabandic.com
Tell me what you’re working on and where you need a hand.