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Mykyta S.

Reliable Plus holder
Offer Mykyta work on your next project.

Ukraine Kyiv, Ukraine
5 hours 13 minutes back
responds instantly
Available for hire available for hire
28 Safes completed
1 day 17 hours back
18 clients
49 proposals made
on the service 4 months 5 days

Rating

Successful projects
100%
Average rating
9.96 out of 10
Rating
18200
Python
3 place out of 4503
Databases & SQL
2 place out of 1211
C & C++
6 place out of 1376
Bot Development
8 place out of 1956
9 projects
Python
8 projects
Bot Development
5 projects
AI & Machine Learning
5 projects
Web Programming

Language proficiency level

Українська Українська: fluent
Русский Русский: fluent
English English: upper-intermediate
Deutsch Deutsch: elementary

Skills and abilities

Portfolio


  • 245 USD

    Freelancehunt Safe — Landing Page (HTML/CSS/JS)

    Web Programming
    Fully developed a promotional page for the product "Safe" from Freelancehunt — an escrow service for secure transactions between clients and freelancers.

    What has been implemented:
    — Conversion structure with 12 sections (Hero → Risks → Comparison table → 6 steps → FAQ → CTA)
    — Responsive design (mobile from 320px to 1440px+)
    — Freelancehunt design system: orange primary, Inter, pill buttons
    — Scroll-reveal animations using Intersection Observer
    — Animation of numerical counters while scrolling
    — FAQ accordion, sticky header, smooth scroll
    — SEO: JSON-LD schema.org (SoftwareApplication + FAQPage), Open Graph, semantic HTML5
    — Clean code without frameworks — opens immediately in the browser

    #landing #layout #html #css #javascript #ux #ui #freelancehunt #Responsive
  • 45 USD

    Security audit of the phone and OSINT analysis of the fraudulent service

    Cybersecurity & Data Protection
    Job Description

    Conducted a comprehensive security audit of a mobile device (iPhone) and helped the client eliminate the risks of personal data leakage in a situation involving a suspicious crypto service.

    What was done:

    • Checked the phone for unauthorized access (contacts, SMS, files)
    • Analyzed app permissions and potentially dangerous services
    • Verified and secured accounts (Telegram, Apple ID, other services)
    • Identified risks of personal data leakage
    • Closed dangerous accesses and configured privacy settings

    Additionally:

    • Conducted OSINT analysis of the service (website, infrastructure, contacts)
    • Explained to the client the mechanics of the fraudulent scheme
    • Provided clear recommendations for further protection

    Work Format:
    Online consultation + step-by-step verification via video call

    Technologies / Skills

    Cybersecurity

    OSINT

    Mobile Security (iOS)

    Access and Privacy Analysis

    Social Engineering (scheme analysis)
  • 668 USD

    AI-powered Restaurant Management Platform — WhatsApp Business AP

    Bot Development
    Development and migration of WhatsApp infrastructure for an AI-based restaurant management SaaS platform. The system automates financial reporting, invoice processing, and communication with restaurant owners via WhatsApp.

    What has been done:

    Complete migration from Vonage Sandbox → WhatsApp Business API (Production)
    Registration and verification of 4 message templates in Meta Business Manager (EN + KA)
    Setup of two-way communication: outgoing notifications + processing incoming responses
    Integration of webhooks to track message delivery status
    Fixing payload errors in Vonage Messages API
    Deployment on production server (Ubuntu VPS, HTTPS, domain api.orbis.restaurant)

    Technical stack:

    Node.js Express.js PostgreSQL Supabase Vonage Messages API WhatsApp Business API Meta Business Manager Claude AI (Anthropic) Gmail API Linux VPS Nginx PM2

    Result:

    Production system that sends automated P&L reports, invoice notifications, and price discrepancies directly to the restaurant owner's WhatsApp. Support for two languages (EN/KA). Verified Meta templates, fully functional two-way communication channel.
  • 45 USD

    Configuration and optimization of Google Ads for a visa services website

    Website SEO Audit
    Conducted full setup and optimization of Google Ads advertising campaigns for the visa services website prestigevisa.com.ua.

    As part of the work, the following was completed:

    • Analysis of the niche and user search queries
    • Collection and clustering of keywords (visa to the USA, visa to Canada, UK visa, etc.)
    • Creation of the advertising account and campaign structure
    • Setup of Google Ads search campaigns
    • Optimization of bids and budget
    • Work with negative keywords to reduce non-target traffic
    • Setup of advertising performance tracking

    Campaign results:

    • 459 clicks from search ads
    • 8.4 thousand impressions
    • average cost per click — 18.96 UAH
    • optimization of key queries to increase CTR

    An effectiveness analysis was also conducted:

    • traffic distribution by devices
    • analysis of demographic indicators
    • optimization of search queries
    • bid adjustments to improve advertising performance.

    As a result, the advertising campaigns began to consistently bring targeted traffic from Google search.
  • 223 USD

    Creation of modern websites and turnkey services

    Website Development
    Creation of modern websites and services turnkey: frontend, backend logic, database connections, API integrations, and performance optimization.
  • 223 USD

    Development of Telegram and WhatsApp bots

    Bot Development
    Development of Telegram and WhatsApp bots for automating business processes, accepting applications, customer support, and integration with AI services, CRM, APIs, and databases.
  • 11 USD

    Development of a website for Valentine's Day (personal website for a Person)

    Website Development
    The perfect gift for a loved one, or a nice gift for a holiday.
  • 11 USD

    Windows Activator

    Windows
    1 window
    2 office
  • 22 USD

    AI assistant in Telegram!

    AI & Machine Learning
    What can our bot do?

    Instant answers: Get comprehensive answers to any questions, from complex topics to everyday inquiries.

    Personalized approach: Our AI learns and adapts to your needs, providing the most useful information.

    Protection and security: All your data and requests are securely protected.

    Forget about long searches for information! With our AI assistant, you are always one step ahead.

    Try it now and experience the benefits of intelligent communication!
    [Link to your bot]
  • 223 USD

    Custom Cyber Range for Sale!

    Your Private Battleground: Custom Cyber Range for Sale!
    Stop practicing on YouTube videos—start hacking in a real environment. We are offering a fully deployed, high-fidelity Cyber Range designed to simulate complex enterprise networks and real-world attack vectors.

    What’s Under the Hood?
    We’ve built a comprehensive ecosystem that bridges the gap between theory and practice:

    Advanced Network Architecture: Segregated LAN/WAN environments with configured routers, firewalls, and NAT to mimic a true corporate perimeter.

    Active Directory Deployment: A full Windows Domain Controller setup featuring realistic misconfigurations for AD-specific attacks (Pass-the-Hash, Kerberoasting, Silver/Golden Tickets).

    Vulnerability Lab (CTF Style): A suite of pre-configured vulnerable machines ranging from Web App exploits (SQLi, XSS) to outdated services and OS-level vulnerabilities.

    Red vs. Blue Readiness: * Offensive: Integrated Kali Linux/Parrot OS toolkits.

    Defensive: SIEM solutions, IDS/IPS monitoring, and log analysis tools to detect intrusions in real-time.

    Docker & Virtualization Power: High-density containerization allowing for instant environment resets—break it, fix it, and restart in seconds.

    Real-World Attack Scenarios: Pre-baked scenarios covering Phishing simulations, Privilege Escalation (PrivEsc), and Post-Exploitation persistence.

    Who is this for?
    Corporate Security Teams: Train your SOC analysts to spot breaches before they cost you millions.

    Education & Bootcamps: A ready-to-go laboratory for students to earn their "digital scars."

    Certification Candidates: The ultimate playground to prep for OSCP, PNPT, or CISSP exams.

    Why Choose Our Range?
    This isn't just a collection of VMs. It is an automated, orchestrated ecosystem. We’ve done the heavy lifting of networking, patching (or unpatching), and service configuration so you can focus on the mission: Hacking and Defending.

    Are you ready to test your limits?
    DM me now for a demo or to get a custom quote for your specific deployment needs!
  • 45 USD

    Telegram Channel Parser

    Python
    A Telegram channel parser is a program that automatically collects data from channels: posts, dates, views, reactions, comments, media, etc.

Reviews and compliments on completed projects 28

  • Real expert
  • Craft master
  • Quick answers
  • First-class quality
  • Nice communication
  • High responsibility
  • Great price
  • Lightning fast

22 June 223 USD
Development of an AI consultant for a work visa verification website

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I want to leave a big and honest review about Nikita because he truly deserves it.

Nikita developed a full-fledged AI salesperson for our website from scratch — a smart chat assistant that qualifies the client, selects the appropriate service from six options, assesses the complexity of the case, and carefully guides the person to submit an application. This is not a "directory" but a live selling bot with a knowledge base, protective rules for legally sensitive visa topics, and a human communication style.

What was done: backend on FastAPI, knowledge base in English, operating mode without unnecessary token expenses, while also allowing for the connection of a full AI Claude with one click. Nikita also created a beautiful chat widget in the website's corporate style, a WhatsApp button, a WordPress plugin, an admin panel, and fully deployed everything on the server.

But the main thing is the attitude towards work. Nikita is always available, responds very quickly, and takes any edits into work almost immediately. Over the weekend, I sent a number of additional requests, and everything was implemented, tested, and deployed the same day. At no point was there an attempt to impose unnecessary services or increase the budget — on the contrary, he himself suggested solutions on how to make things simpler, more convenient, and cheaper.

Very patient, attentive to details, explains everything in simple terms, and sees the project through to the end. You can feel that he truly invests in the result, rather than just "clocking hours."

I definitely recommend him and will reach out again. If you are looking for a performer you can trust who does quality work — it's Nikita.

10/10

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Thank you for the collaboration. Mykyta performed the development of the AI bot according to our requirements, was always in touch, and promptly made the necessary adjustments.

12 June 601 USD
Stage 2A — PV+BESS Investment Optimization Core (Pyomo MILP)

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I recommend Nikita as a strong and very responsible developer.

We worked on a complex project to create an investment model PV+BESS with MILP optimization, financial modeling, and a large number of analytical reports. During the work, the project significantly expanded compared to the initial terms of reference, and Nikita was always ready to delve into issues, discuss solutions with reasoning, and make necessary adjustments.

I especially want to highlight:

— deep immersion in the subject area;
— ability to work with non-trivial business logic and financial models;
— willingness to explain the decisions made and the logic of calculations;
— high degree of involvement in the project;
— constructive reaction to comments and numerous iterations of revisions;
— responsibility in adhering to agreements.

During the project, significantly more was implemented than was initially planned. At the same time, Nikita maintained a professional approach and brought contentious points to a clear and verifiable result.

I would like to separately note his patience and willingness to engage in dialogue. The project contained a large number of details, checks, and clarifications, however, all questions were discussed constructively and with a focus on the final result.

I am satisfied with the collaboration. I would be happy to continue working with Nikita in the next stages of the project and can recommend him for complex analytical, financial, and programming tasks.

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I was satisfied with the work.

The connection to Bazoš.cz was successful, all main functions were adapted and are working correctly. During testing, as in any similar project, various nuances and minor errors were found, but all comments were addressed quickly and without unnecessary questions.

The developer was always in touch, paid close attention to feedback, and brought the functionality to a working state. In the end, we received exactly the result that was planned.

Thank you for the work, we will continue our cooperation.

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During the work and testing process, there were quite a few different nuances and bugs, which is quite normal for such a large project. All comments were addressed quickly, the developer was always in touch and responded promptly to feedback.
As a result, all agreed functionality works correctly, and the outcome meets expectations. I am satisfied with the collaboration.

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Brilliant work. Throughout my experience, I have rarely encountered such a professional, quick, and insightful specialist. Mykyta does not just mindlessly close tasks; he deeply understands the essence and does everything at the highest level. No bureaucracy or time-wasting — everything is clear, structured, and to the point. But what is especially valuable is the absolutely adequate, human attitude towards the project and the Client, which is now a huge rarity. Against the backdrop of many others, working with Mykyta is simply a breath of fresh air. 10 out of 10. I highly recommend collaborating.

23 May 56 USD
Development of the Server Side of a REST Application

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Very fast and high quality. I recommend!

17 May 601 USD
Desktop application in Python for automating the publication of ads on Bazoš.sk

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Excellent performer, always in touch and responds quickly. Approached the project professionally, helped to properly formulate the technical specifications and application architecture.

The MVP is already working and being used in tests, all edits and requests are discussed reasonably and without issues. It is clear that the person is well-versed in automation, Playwright, and desktop applications.

I am satisfied with the work, and we continue to develop the project further.

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Nikita has proven himself to be a strong specialist in optimization and modeling:

- correctly implemented the MILP model (Pyomo) considering constraints (SOC, power limits, connection constraints);

- skillfully divided energy flows (PV → load → BESS → export → curtailment);

- implemented the calculation of curtailment and its cost (lost value);

- added battery degradation and a basic financial block (savings → FCF → NPV/IRR/Payback);

- conducted sanity checks and sensitivity analysis on BESS configurations.

I would like to highlight his willingness to refine the model during discussions:

- added a comparison with the baseline (pure grid, PV-only, PV+BESS);

- created a transparent structure for the results;

- promptly made adjustments and provided detailed explanations of the model's logic.

Communication was constructive; Nikita explains solutions in detail and justifies the model's behavior (including complex issues such as dispatch under different tariffs).

Stage 1 is closed as proof-of-model: the model accurately reflects the optimization logic and can serve as a basis for further work with real data.

I recommend him as a specialist in optimization and energy modeling tasks.

12 May 479 USD
Telegram bot (mental health)

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We are completely satisfied with the collaboration with Mykyta on the MindMe project.

We had the task of creating an MVP Telegram bot for a psychological/mental program with full logic for user flow, payments, access, content, and basic analytics. As a result, Mykyta implemented not just a separate Telegram bot, but a fully functional working system ready for launch: a bot, backend, database, 3 program packages, content delivery by days, texts, audio, a start video, navigation buttons, user status tracking, reminders, upsells, support through the bot, and basic analytics.

We would like to specifically highlight the integration of LiqPay webhook and the automatic granting of access after payment. It was important for us that the product functioned as a real business tool, not just as a test version. Basic content protection, deployment, and a clear instruction manual for launching and maintaining the system were also implemented.

Mykyta proved to be a responsible, attentive, and technically strong specialist. He understood the business logic of the project well, not just mechanically performing tasks, but thinking about how to make the system convenient, logical, and ready for further development. During the work process, he explained technical aspects in an understandable way, proposed solutions, took feedback into account, and brought the project to a final working state.

Communication was comfortable and professional. Mykyta was in touch, responded appropriately to clarifications, paid attention to details, and did not leave any questions unanswered. It is clear that he is interested not just in "completing tasks," but in creating a quality product that can be used in practice.

We received a ready MVP that can be launched, tested on an audience, and further developed. The project has good potential for scaling: new packages, subscriptions, a referral system, an admin panel, deeper analytics, scenario personalization, automated funnels, new upsells, and additional programs.

We recommend Mykyta for collaboration as a reliable freelancer and technical specialist who can not only write code but also assemble a complete product for a specific business task. The collaboration left a positive impression, and we are ready to approach him with new tasks and project support in the future.

30 April 267 USD
Create a database for analysis

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attentive specialist. patience and quality recommendations are the main traits of a specialist. Thank you for your work!

20 April 724 USD
DevOps Engineer / System Administrator

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Mykyta is a true professional and a rare find. He executed everything in the project (infrastructure and DevOps) perfectly: clearly, quickly, and with his own initiative where it was needed. He is completely open, honest, and always in touch, which was critically important for our pace. All technical nodes of CharterBnB are now working like clockwork, and the CI/CD pipeline is set up flawlessly. I received immense satisfaction from the collaboration — it's one of those cases where a specialist truly takes responsibility for the result and does not require excessive oversight. I recommend him 100%!

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Mykyta delivered outstanding work on Agents 01 and 02 — both running in production, WhatsApp notifications working perfectly in English and Georgian. Clean code, solid architecture, always available and responsive. Highly recommend.

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Nikita completed Milestone 1 on time and in full.

He received a ready architectural foundation for high-load TDS: clean layered structure (API / Domain / Services / Infrastructure), Litestar + Granian, Docker + PostgreSQL + Redis, configured CI/CD with merge blocking on linter and typing errors.

I especially appreciate that he immediately laid down the transport layer for TLS impersonation — this is a specific requirement of our project, and the architect understood the task without lengthy explanations.

Communication is clear, he asks relevant questions, does not waste time. He submitted the work ahead of schedule.

I recommend him as a Tech Lead for backend projects with complex infrastructure. We continue our collaboration.

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Mikita is a top-tier developer. The task was genuinely complex — migrating WhatsApp infrastructure from sandbox to production, registering 4 templates in both EN and KA, fixing payload errors, configuring Vonage API correctly. He handled all of it clean, no hand-holding, no unnecessary back-and-forth. Tests green, code in the repo from day one. He understands architecture, not just code. Will work with him again — already have the next project ready.

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I am very grateful to Mykyta for his help!

I worked with him in a very difficult situation related to a crypto loan and threats from a service. Mykyta conducted a detailed technical analysis of the situation, checked the security of my phone, iPhone settings, access to contacts, Telegram accounts, and Apple ID, and explained how such fraudulent schemes work.

I especially liked that he not only gave general advice but also conducted a complete check of my device step by step during a video conference, showed where the risks might be, helped close unnecessary access to personal data, and explained how to properly protect accounts.

Separately, Mykyta performed an OSINT analysis of the service that caused the problem, checked the website, infrastructure, contacts, and provided a clear explanation of the entire situation.

After the consultation, I feel significantly calmer because I now understand what is happening and how to act correctly moving forward.

I recommend Mykyta as a very competent cybersecurity specialist who truly understands his field, works attentively, and explains everything as clearly as possible.

Thank you once again for the help!

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Great performer, I recommend.

14 March 500 USD
AI Automation Agents for Restaurant Operations — MVP

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Mikita delivered exceptional work - two fully functional AI agents deployed to production in record time. Clean architecture, multi-tenant system, USAR P&L engine, multilingual support, real-time Gmail monitoring, WhatsApp alerts - all working flawlessly. He went beyond the SOW scope without being asked. Reliable, fast, and technically brilliant. Highly recommend.

4 March 334 USD
Finalize the Telegram bot

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30 minutes to complete. Everything is clear as we planned. Let's keep working!

3 March 223 USD
Finalization of the TG bot

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Everything as always. The highest level. I sincerely recommend.

1 March 223 USD
Finalization of the TG bot

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Excellent execution of the work. Everything is much faster than the stated deadlines. I sincerely recommend the performer. Contact them, you won't regret it!

27 February 167 USD
Completion of the TG bot

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Everything is great! Let's keep working.

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I recommend!! Very good specialist. He fixed what Polish specialists could not do.

24 February 22 USD
YouTube channel

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Wonderful consultation, I received all the necessary answers. I will definitely reach out again for further collaboration. I highly recommend!

23 February 223 USD
Telegram bot

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Wonderful performer. Everything is clear, faster than deadlines. Everything is done competently for future development. Always in touch! Feel free to reach out! You won't regret it.

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Everything is good and on time, all corrections have been made as desired.

20 February 22 USD
Advertising in Google AdWords

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Everything is great, thank you for being quick.

19 February 16 USD
Cutting

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Everything is at the highest level, the person understands their work.

Activity

  Projects underway 1
Stage 2B — PV+BESS Investment Engine Personal project
601 USD

  Latest proposals 10
Monitoring bot + Bazoš→Telegram Personal project
601 USD
Freelance project
Freelance project
223 USD
Freelance project
Freelance project
Freelance project
269 USD
Freelance project
334 USD
Stage 2B — PV+BESS Investment Engine Personal project
601 USD
Freelance project
Development of an AI consultant for a work visa verification website Personal project
223 USD