Development of backend logic in Node.js with deterministic result

Budget: 500 USD Deadline: 10 days

Hello!

First, I want to assure you this is not an AI-generated comment.

I am Ahmed Atwa, a software engineer with major experience in TypeScript and Node.js. I have made many Node.js backends, systems and platforms before, including a Managed Cloud Hosting platform, a Recruitment System, and most importantly, I have made many game mods for a game called Warcraft III using TypeScript. You can check everything out on: https://www.github.com/nightknighto

I studied and have solid knowledge and understanding of cryptography, so I fully understand the stated requirements. I am well-suited and prepared to take on this new challenge.

And as a token of appreciation for you being my first customer, I will provide you with a free gift. You can choose from the following:
- Complete Docker configuration for the project.
- Complete Kubernetes configuration for the project.
- Simple CI/CD to automatically deploy any new updates.
- Simple frontend to test out the backend functionalities.

Interested? Kindly send me the specification and let us discuss! Expand

Budget: 500 USD Deadline: 7 days

Hello.

We are The Dev Company team, specializing in backend development on Node.js and TypeScript, as well as having experience in cryptography, game mechanics, and verifiable logic.

What we can do:

– Implement deterministic mechanics based on seed-based RNG, hashes, salts, and other cryptographic tools;
– Thought-out mechanism for generating and verifying results (before and after the action);
– Flexible architecture to allow scaling and refining mechanics;
– If necessary — model basic physical interactions of objects;
– Work carefully, quickly, and with understanding of how similar logic works for competitors.

Ready to discuss details and receive the technical assignment privately.

Waiting for your response. Expand

Budget: 3000 USD Deadline: 1 day

Good day, we are engaged in web development, website layout on PHP, frameworks Laravel, HTML, CSS, including WordPress. We develop websites on PHP, frameworks on Laravel, and mobile applications for iOS and Android turnkey.

We develop websites on PHP and mobile applications for iOS and Android.
We have experience in creating CRM/ERP systems.
Ready to execute your order turnkey.
We develop websites on WordPress and mobile applications for iOS and Android. Total development experience is 7 years. Ready to execute your order turnkey.
1. Projects
https://berkanaplus.com.ua/ - This site was migrated and the server was configured.
2. https://leondesign.kyiv.ua/
PHP version updates and plugin updates.
3. https://peg.com.ua/
Development of a new module for the site for dynamic product price updates.
https://uvali.com.ua/
Configuring a dedicated VPS server. 📈 Internet marketing and promotion:
Setting up advertising on Google Ads, Facebook, TikTok
SEO and copywriting

Promotion through push notifications and in-app advertising

Marketing analytics, A/B testing, campaign optimization
📈 Internet marketing and promotion:
Setting up advertising on Google Ads, Facebook, TikTok
SEO and copywriting
🎨 Design solutions:
In-house design department
🎨 Design solutions:
UI/UX design, branding, advertising creatives Expand

Budget: 4990 USD Deadline: 29 days

Good day!
My name is Valentin, and I represent Arctic Web Agency. We are a team of experienced web developers specializing in creating modern and effective web solutions for business. I can provide examples of our similar work in private messages. Ready to take on your project!

Sincerely,
Arctic Web Team
Freelancehunt

Budget: 550 USD Deadline: 15 days

Hello!

I am ready to undertake the implementation of backend logic in Node.js using TypeScript.
I understand the key requirements:

– Deterministic calculation of the result before the action begins (seed-based RNG, hashing, salt)
– Ability for post-factum verification of outcomes
– Use of cryptographic primitives
– Flexible architecture with the possibility of refinement
– If necessary — implementation of basic object physics

I have experience in creating similar mechanics — I have implemented verifiable game mechanics with predictable results on the server side, worked with Crypto, seedrandom, OpenSSL, and other tools. I also have cases in my portfolio.

I am ready to discuss the technical specifications, review competitors, and propose an architecture. Expand

Budget: 12345 USD Deadline: 15 days

Hello Ihor,
Your idea of a gamified mobile product sounds very interesting. We specialize in creating B2C platforms with gaming mechanics that combine user experience, technology, and business goals.

We create:
- Gamified mobile applications
- Unity/AR games with backend on ASP.NET Core
- Integration with eCommerce / CRM / API
- Analytics, rating systems, rewards
- Mechanics with character development and progression

To get started, it would be helpful to clarify:
- What is the target audience of the game?
- What is the core gameplay (mechanics)?
- Is there a plan to integrate with eCommerce or a real product?
- Which platform do you focus on: iOS, Android, or both?

We have experience in similar projects. Here are a few examples:
Captain TCG — a mobile AR game with ship development, token scanning, and interaction with physical products:
- 100k+ downloads
- 20k+ concurrent players
- Integration with retail chains, ROI analytics
https://freelancehunt.com/showcase/work/captain-tcg/1961707.html

Golden Wood — a mobile game + eco-platform:
- Player buys a tree in the game — planted in the real world
- Full tokenization, backend development
- Website on Next.js/Nest.js + mobile Unity app
https://freelancehunt.com/showcase/work/golden-wood/1961710.html

I would be happy to discuss the details of your project, timelines, budget, and next steps in private messages. Expand

Budget: 500 USD Deadline: 7 days

Hello!
Ready to implement, more than 4 years of experience.
Write, we will discuss, I will be glad to cooperate!