Mykyta S.

Good communication, quality execution

Excellent communication

Completed at 110%

I ordered a complex monitoring system (Vinted, 14 Gmail accounts via API) and integration of our publisher Bazoš with Telegram from the contractor. The task was completed at 10 out of 10.

What I liked:

Reliability: Everything is packaged in Docker on VPS. It works stably 24/7, notifications to the manager and me arrive within a couple of minutes. The duplicate protection works perfectly.

Informative: If the session drops on Vinted or there is a failure on Bazoš (limits, captcha, browser crash) — the bot doesn’t just crash, but immediately sends a clear notification to the appropriate chat.

The developer took the initiative and set up the automatic launch of the publisher upon PC reboot for free, restored the queue, and added the necessary column "Quantity of goods" from Excel.

The person is an absolute professional in automation, knows how to listen to the technical specifications, and understands business tasks.

I ordered Nikita to refine a Telegram bot for automatic orders in my stores (with integration with Poster) — and honestly, this is one of the best experiences I've had working with a freelancer.
I already had a bot, but it was "cobbled together" and didn't work properly: it lagged for several minutes, showed incorrect stock levels, and constantly had issues. Nikita figured all of this out from scratch, rewrote the code properly, and brought the bot to a working state. Now the stock pulls directly from Poster and matches perfectly, orders are formed in seconds (it used to take 4 minutes), and nothing freezes.
Separately, there are a ton of useful features he added and suggested himself: product category selection, editing orders right before sending, reports on packers, connecting new stores with a button directly from the bot (previously this had to be done manually through a developer), protection against accidental double clicks, and even a bot restart button so I wouldn't have to do anything through the server.
What impressed me the most was the level of support. When the bot started lagging, Nikita didn't brush it off with "everything is fine" — he personally accessed the server, figured it out, found the real cause (it turned out it wasn't the server, but the connection with Telegram), fixed it, checked the logs, and even tidied up the server — removed everything unnecessary and moved the bot to my working chats. He did everything neatly, without breaking anything.
I am completely clueless about all this; for me, it's like space — but Nikita explains everything in the simplest terms, without technical jargon, and after talking to him, everything becomes clear. Very communicative, always in touch, responds lightning-fast, and constantly does even more than you ask.
A man of his word: he said he would do it, and he did, on time, without "tomorrow or the day after tomorrow." And importantly, even after completing the order, he doesn't disappear but stays in touch. We have many more ideas ahead, so we will definitely continue our collaboration.
I recommend him 100% — both as a top-level specialist and as a reliable, decent person. Thank you so much, Nikita!

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

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.

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.

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.

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.

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.

Very fast and high quality. I recommend!

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.

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.

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.

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

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%!

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.

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.

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.

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!