Cosmin Rusu

Duty Ventures - Software Design and Engineering Company

I'm leading a software development agency focused on fast iterations. Most of our clients are shipping more features, responding faster to support tickets, and have accelerated growth because of us.

We focused on HealthCare a lot lately due to the accelerated digitalization in this industry. I am a strong believer that we can make healthcare more technically advanced via pure software. 

In terms of technologies, our previous projects involved Ruby on Rails, React, React Native, Scala, Java, Kubernetes, GCP, AWS (ECS, RDS, AKS), Stripe Connect, HIPAA compliance.

Some of our previous clients: 
- Spotify
- Colgate
- Go4Ellis (incl. HIPAA compliance)
- KindBody (+1 HIPAA)
- NXT Sports
- Noom (Healthcare)
- Mochila Fulfillment
- 3Step
- Mylk Guys (YCombinator)
- NLV Productions
- SH Technologies
- One Step Software (Techstars)
- Ergodic Labs
- Med Prep
- Testing Psych
- Abundance Digital
- Tookitaki

Founder & Lead software engineer

Apple

Web Answers on the Siri Experience team, working on open-ended question answering. BERT, SBERT, TensorFlow

Machine Learning Engineer

Google

Intern in Google Ads team. Developed a daily training and prediction pipeline for a machine learning model. Worked closely with the data science and development team to integrate the R model in C++.

Intern in the Google Photos team. The project involved extending the selection framework for auto-created movies based on user content and implementing three new concept movies. Exposed to: Java 8, Protocol Buffers

Software Engineering Intern

Amazon

Amazon Development Center Iasi - Robot Detection Research team
The project involved creating a linkage and score system for robotic attributes. The main challenge was the huge amount of nodes and data that had to be processed every day.
Exposed to: Hadoop, MapReduce, Machine Learning, JavaScript, NodeJs

Software Engineer Internship

Transforming Visions into AI MVPs & Products | Founder @Duty Ventures | Ex {Google, Apple and Amazon}

Hi, I’m Cosmin, the Founder and Lead Engineer of Duty Ventures. 

After some experience as a software developer in companies such as Google, Apple, and Amazon, I decided to launch my project.

With several former colleagues and college friends, we launched our own startup specializing in software development for entrepreneurs and customers needing software development services. 

Duty Ventures is all about developing software products from start to finish, thanks to the experiences we have all acquired in the past years.

One of our most successful services is aimed at entrepreneurs and early-stage founders, for whom we provide an MVP-builder service getting their product from 0 to 1 within weeks!

However, our services are not limited to that. The teams we create do much more than just create MVPs and are able to adapt to the different technologies requested, all of this in an agile way.

Our most recurrent services are the following:
- MVP creation
- Custom Software Development
- Blockchain Development
- Mobile Development
- Checkout pages
- E-Commerce

And our most used technologies are:
- Ruby on Rails
- React
- React Native
- Java
- NodeJS


If you want to learn more about how we can help you, head over to: https://dutyventures.com


Phone: (+1) 669 200 9568 / (+40) 754 973 314
Email: cosmin@dutyventures.com

Engineering Teams for Ambitious Founders | Founder @Duty Ventures | Ex {Google, Apple and Amazon}

Perhaps my biggest lesson from working more than 5 years providing Software Development Services is: don’t burn bridges. It’s hard to do it. At some point, you might not deliver as well as you used to. There are peaks, and they are valleys. We need to be able to cross both, since we only have a North Star. What’s important is the process, not the outcome. If you focus on the process, the right outcomes will naturally come.

Now back to my idea: no matter what happens with a relationship, it’s best to end it on good terms. Make sure both sides are happy after moving in completely different directions. Why? Because really, that leaves the door open for future opportunities. This happened to me! Not once, not twice, but many times. Your current project might end, but the founder will have another side project they want to pursue, or they will move to a high-growth startup that could use your expertise.

It’s easier and better to invest in current and previous relationships than to build new ones. But one needs to do both for the best outcomes.

Remote work sounds simple. Hire from anywhere. Get talent everywhere.

But here’s what nobody tells you - compliance is a minefield.

Every country has its own labor laws, tax codes, regulations. What’s fine in the US might get you flagged in Germany or India.

I’ve worked with startups scaling global teams and seen founders blindsided by fines, audits, or even payroll freezes. Usually because they tried to copy-paste a US process onto the world.

Here’s what I tell anyone building a remote team:
- Never assume the rules are the same. Research each country before you hire.
- Don’t rely on guesswork. Use proper global payroll and compliance platforms.
- If you’re unsure, talk to a local expert. A quick check can save you months of trouble.
- Pay attention to IP and confidentiality laws. These differences can bite you later.

Bottom line: remote work makes geography irrelevant for talent, but not for compliance.

Get this wrong, and small mistakes become big distractions. Get it right, and your team can focus on what matters.

Ran into compliance surprises building your team? I’d love to hear what happened and what you learned.

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Bogdan Veliscu

CodeSwiftr

Offering top quality development and support to our remote clients, using cutting edge technologies,  through the entire development cycle.

Developed MumChef.io - an iOS application helping parents introduce solid foods to their babies with Swift UIKit and Firebase Realtime Database, Storage, Dynamic Links, Authentication, and more.

Developed the management console using React Redux Saga with Material UI on Firebase and Firebase Functions.

Built a Python Flask web service to handle image classification and personalized recommendation system using LightFM and custom PyTorch ML models.

Python Expert & Tech Leader | Fractional CTO for Startups | Founder

Full-Stack Engineer | Machine Learning Engineer

Arnia Software

In my role as a Python IoT systems engineer at Arnia Software, I handled low-level Python logic and worked on the development of an iOS application that interacted with the IoT system. My work involved diverse technologies such as React, Rete.js, and Swift/SwiftUI.

Senior IoT Systems Engineer | Python Expert

Bluebird Development

As a seasoned React Developer at BVNK, I spearheaded the delivery of crucial front-end features for the company's crypto exchange platform, bvnk.com (formerly coindirect.com). Harnessing the power of React, Redux, and Tailwind CSS, I contributed to creating a robust and secure platform for crypto transactions.

At BSC, I showcased my ability to lead and execute from inception to launch. I initiated the development of a ReactNative application, where I was instrumental in defining the technology stack, conventions, and best practices. My contributions encompassed not only app development with ReactNative, ReduxToolkit, and Tailwind, but also the configuration of Azure DevOps to build and share iOS and Android builds. I navigated the complexities of launching a mobile application, from business registration on the App Store/Play Store to streamlining the launch process via Azure DevOps pipelines.

In another project with BSC, I addressed the technical debt associated with a .NET Core and Angular project. My role involved the integration of Storybook and configuring the necessary environment for isolated testing of complex UI components. This experience underscored my commitment to ensuring high-quality, sustainable code, and effective collaboration.

Senior Full-Stack Developer | React & Mobile Specialist

in-House

At In-House, I played a significant role in developing responsive, mobile-first components, and a patented tool dedicated to fostering anonymous consensus feedback. This work primarily leveraged cutting-edge front-end technologies such as React, Redux-Saga, Reselect, and Styled-Components. Key contributions include:

• Led the development of responsive, mobile-first components, enhancing feature implementation and redesign processes. This was achieved through the effective utilization of modern front-end technologies.

• Engineered a proprietary tool that enabled teams to provide completely anonymous consensus feedback, significantly improving team communication and efficiency. This tool was developed using React, Redux-Saga, Reselect, and Styled-Components.

• Routinely applied my creative problem-solving skills to debug and optimize code, resulting in a seamless, optimized user experience.

Frontend Specialist | React & Redux Developer

Torga Optical

In my role, I leveraged my skills in React, Redux/Saga, Firebase, and THREE.js to develop an Augmented Reality (AR) application, transitioning it from mobile to web. Key accomplishments include:

• Masterminded the development of a versatile AR application, implementing it from mobile to web. This application was built using a combination of advanced technologies like React, Redux/Saga, Firebase, and THREE.js.

• Devised Python scripts to automate various processes, substantially improving efficiency. These scripts were utilized for extracting models, images, and metadata from Unity project files (YAML).

• Successfully uploaded the extracted resources to Firebase Storage and updated the Realtime Database, ensuring a smooth, interactive user experience and up-to-date information.

Senior Software Engineer | AR Application Developer | Firebase & React Expert

Specta.AI

• I took the lead in developing and maintaining an in-house iOS application and desktop app, which effectively facilitated the collection of sensitive data from over 30,000 patients, ensuring accuracy and confidentiality.

• In collaboration with a diverse cross-functional team, we successfully created 'Torga iStylist,' a cutting-edge glasses virtual try-on application that leverages face tracking technology for a personalized user experience.

• Applying a versatile range of technologies, I solved complex problems using advanced machine learning algorithms. This included tasks such as image classification, 3D model reconstruction, and point cloud image registration, resulting in robust and efficient solutions.

Senior Software Engineer | ML & iOS Application Specialist

PVP Studio

• Developed and optimized a fast-paced 3rd person shooter 5v5 multiplayer game with a focus on performance, stability and scalability. 
• Utilized Unity, Photon Engine, PlayFab and Steamworks for multiplayer, character and weapon customization, game progression, in-app purchases, game economy and other features.
• Achieved 30 FPS for a smooth gaming experience.

Senior Software Engineer

Ubisoft

• Coordinated live operations of Driver Speedboat Paradise, leading a team of 5 programmers.
• Released two major updates to in-house Game Engine (C++ with Lua scripting).
• Developed and launched Google Play Open Beta from Ubisoft (DrawRace3) in two countries.
• Researched and prototyped various game mechanics from different genres.
• Ported console-level car physics library to iOS & Android and created Unity bindings for Unity games.

Lead Software Engineer

• Developed and maintained AAA mobile games with a team of 30+ using Lua scripting and a proprietary game engine.
• Pioneered localization support and In-App Purchases, adding full support for 9 major languages.
• Ported mobile game to WebGL, optimizing game-play and adapting boat physics from iOS game to Babylon.JS.

Software Engineer

NetRom

• Assumed project responsibility and communicated effectively with the client via email or JIRA to clarify business objectives.
• Implemented agile methodologies and maintained two-week sprints to drive project completion.
• Bootstrapped projects from scratch and developed the desired architecture according to functional requirements.

Software Engineer Technical Lead

• Developed applications for multiple mobile platforms, with a focus on Android development
• Developed new or enhanced existing web and desktop applications, leveraging multiple technologies

Remote Work

iOS Developer

Founder & Fractional CTO, CodeSwiftr. We scale funded startups that achieved product-market fit with tech leadership and tailored software development.

Startup that achieved product-market fit?

Looking to scale or in need of tech leadership?

I'm Bogdan Veliscu and I specialize in guiding startups that have achieved product-market fit but are facing the challenges of scaling.

With years of experience in tech leadership, my focus is on streamlining your development processes and ensuring your tech stack is scalable, efficient, and aligned with your business goals.

My professional journey has taken me through various fields, including web development, data analysis, machine learning, AR, and IoT. This broad expertise allows me to bring a unique and inventive approach to every project.

I have 14+ years in the tech industry so I bring to the table a wealth of expertise in Python, React, and Cloud Solutions.


“It was a pleasure to work with Bogdan. He is sharp and efficient and always keeps the user's impact in mind when discussing his work.”.

— David, Retail Enterprise Executive

Ready to have the technical support needed to scale your startup?

DM me or book a free strategy call using the link from my profile (under my name).

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Cosmin Rusu

Bogdan Veliscu

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The Battle

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