Candidates 87934

Product Designer focused on building clear, scalable products across web and mobile.

Over the past few years, I’ve worked on complex B2B and B2C platforms — including travel products and AI-powered coaching systems — where UX is not just about visuals, but about structuring logic, simplifying flows, and making products easier to use.

I specialize in:

- Designing end-to-end product experiences
- Structuring complex features and multi-role systems
- Collaborating closely with product and engineering teams

Recently, I’ve been working on:

- XO.travel - B2B/B2C travel platform
- Osmo - AI-powered coaching platform

I care about clarity, scalability, and building products that actually make sense to users.

Senior Software Engineer (also AI Engineer) with 8 years of experience in Java, delivering quality software solutions since 2017. Expert in Spring Framework and Spring Boot, building robust applications across industries. Proficient in full-stack development, including database design, testing, and customer support. Skilled in Java 8-21, Python, FastAPI, Spring Framework/ SpringBoot, Dropwizard, Hibernate, QueryDSL, Langgraph, Langchain, RAG, Embeddings, RabbitMQ, SQL, REST, MCP, git/svn, uv, maven/gradle, Docker, Kubernetes, AWS, Jenkins/TeamCity/Bamboo/GitHub Actions/GitlabCI, Selenium, TestNg, JUnit, pytest. Team player with Agile experience, consistently meeting deadlines and exceeding client expectations. Can own domain and deliver e2e solutions from analysis of requirements and specifications to production ready state.

I am a Ruby engineer with over 5 years of experience, having previously contributed to a fast-growing U.S.
startup where the technical team doubled in size, and the company grew to over 200 employees. I have a solid understanding of startup dynamics, excelling in handling unpredictability, rapid changes, and high-
pressure environments.

My work focuses on writing code that solves real business challenges, ensuring high-quality and thoroughly
tested functionality. I have extensive experience monitoring and resolving production issues and providing
comprehensive project support.
I am a collaborative team player with excellent communication skills, always ready to take on new challenges
and achieve goals. Passionate about software development, I am committed to continuous learning and
professional growth.

Solo-developer with 1.5+ years of building Golang projects. Focused on clean architecture and performance.

What I've built:
- Telegram/Discord bots (including AI-integrations like Groq, Cloudflare Workers, Gemini API with further tokens usage optimization)
- Automation and CLI tools
- Custom reverse-engineered API wrappers

My goal:
Looking for first team-based role for understanding complex business logic and real-world challenges. I'd like to apply my skills in a professional enviroment and level up my algorithmic foundations.

Hello!

My name is Alexander Gaichka and I live in Ukraine.
I have 10 years experience in Marketing and 7 years in Management.

I’ve started as a Copywriter and SEO Specialist, and then expended to other Marketing channels such as SMM, PPC, E-Mail Outreach and Influencers.

I’m a confident user of many Marketing and Management tools, such as Hubspot, Semrush, Slack/Asana/Trello, Screaming Frog, Google services such as Google Analytics, Sheets and etc.,

also I have a good experience in Adobe Premiere, Photoshop and Illustrator.
Linkedin: alexander-gaichka-846b1714b

Skills:
Programming Languages: Python, C, C++, C#, PHP, Java, JavaScript
Web: HTML, CSS, React
Libraries/Python tools: Pandas, NumPy, Matplotlib, SciPy, PyQt, Pytest, Prospector, PyInstaller, Django, Flask, FastAPI
Databases: PostgreSQL, MySQL, SQLite
Version Control Systems: Git
Virtualization: Docker
Tools: GitHub, GitLab, Trello, Jira
IDE: PyCharm, VS Code, Visual Studio, Qt, CLion, WebStorm, IntelliJ IDEA
AI tools: GitHub Copilot, Claude Code, Codex, Google Gemini

Experience:
Team project “Studly”
Under the mentorship of SoftServe
A desktop application for organizing and simplifying the educational process among students and teachers, which ensures effective organization, facilitates access to educational materials, and promotes communication and cooperation between participants in the educational process.

Operations Consultant (Freelance) Feb 2026 – Present
Supporting small businesses with process design, KPI systems, operational workflows and automation.
Building internal tools and AI-powered automations for reporting and operational efficiency.
Working on SaaS and AI products focused on business operations.


Operations Manager — Astrall Traffic Feb 2023 – Jan 2026
Digital performance company | Team of 23 | Paid acquisition & operations | Remote
Took full operational ownership of a digital performance company and built business infrastructure from the ground up
Scaled cross-functional team from 5 to 23 people across operations, analytics, and account management
Designed and implemented company-wide planning cycles, KPI system, and weekly reporting cadence
Built structured decision-making processes tied to performance metrics — reduced reactive, gut-feel decisions
Responsible for budgeting, cost control and operational planning
Improved overall operational efficiency by ~40%
Reduced operational costs by ~20% through process optimization and team structure redesign
Achieved consistent, predictable results after 6 months of operational restructuring



Media Buyer — T-Space (Senior) Aug 2022 – Jan 2023
Final role in media buying — fully independent, high-budget, with operational focus.
Managed ad budgets up to $200K/month across Facebook and TikTok — full ownership from strategy to execution
Built and documented campaign launch SOPs used by the wider team to reduce setup time and errors
Identified a winning creative that remained profitable for several months — systematized the testing framework behind it
Launched new geo/offer combinations from zero to positive ROI; created repeatable playbooks for future launches
Tracked performance via Keitaro + CRM dashboards; set up automated alerts for anomalies in spend and conversion
Mentored 2 junior media buyers — ran weekly performance reviews and built checklists for daily operations
Media Buyer + Automation Specialist — RentAcc & Independent Team Mar 2022 – Aug 2022
Worked across two parallel streams: campaign management and workflow automation.
RentAcc team: managed paid campaigns indep

Senior QA Engineer with 7 years of experience in ensuring the quality of
high-traffic platforms across AdTech, Media Streaming, and Ecommerce
domains (including industry leaders like Schibsted and Viaplay). Expert in full-stack manual testing (Frontend, Backend, API) with a focus on delivering robust, data-driven solutions. Proven ability to optimize QA processes in Agile environments and ensure high release standards for complex digital products.

Повідомлення Gemini
Я є кваліфікованим фахівцем із понад трирічним прикладним досвідом у сферах фінансового аналізу, управління операціями та стратегічного планування. Моя освітня база включає ступінь бакалавра з міжнародної економіки та фінансів, банківської справи і страхування , а також диплом молодшого бакалавра у цій же галузі. Професійний шлях у міжнародній компанії Leoni дозволив мені опанувати повний цикл FP&A , включаючи консолідацію фактичних даних, аналіз відхилень та глибоку розбивку витрат. Я розробляв аналітичні моделі в Excel для моніторингу драйверів витрат та успішно реалізував проєкт з оптимізації логістики. Завдяки власноручному аудиту маршрутів мені вдалося скоротити витрати на паливо на 15% та зменшити час перевезень на 45 хвилин щодня. Окрім цього, я супроводжував процес нарахування заробітної плати для понад 200 працівників , забезпечуючи точність даних навіть у критичні терміни за півтора дня до виплати. У ПриватБанку я зосереджувався на перевірці банківських угод , моніторингу фінансових транзакцій та контролі ліквідності. Мій досвід включає реконсиляцію платежів , аналіз грошових потоків та забезпечення суворого дотримання комплаєнс-процедур та фінансового моніторингу. Окремим вагомим досягненням є участь у Chicago Market Exchange Trading Challenge , де моя команда під моїм керівництвом увійшла до ТОП-10 серед 650 міжнародних команд світу. Під час змагань я будував сценарні торгові моделі , аналізував деривативи, макроекономічні чинники та волатильність ринків , що значно поглибило мої навички кількісного прогнозування та аналізу NASDAQ. Як голова Наукового товариства та Team Lead проєкту «Львів — Молодіжна столиця 2024» , я розробляв бізнес-ідеї та складні фінансові моделі, що включали unit-економіку , планування Cash Flow та практичну роботу з оподаткуванням ФОП. Мій технічний стек включає професійне володіння Advanced Excel , зокрема Power Query та Pivot Tables , базові знання Power BI для візуалізації даних та досвід роботи з ERP-системами, такими як SAP та BAS. Я активно використовую ШІ-інструменти для автоматизації рутинних фінансових задач та прискорення аналізу даних. Володію англійською та португальською мовами на рівні B2 (Upper-Intermediate) , а також німецькою на рівні B1 (Intermediate). Мої сильні сторони — це аналітичне мислення , здатність до глибокої верифікації даних та виявлення аномалій , а також висока ефективність у роботі в непередбачуваних ситуаціях.

Experience in data analysis including:
- Conduct media monitoring analysis to evaluate brand visibility, sentiment, topics, narratives, and reputational risks
- Build analytical reports, dashboards, and presentations to support client decision- making
- Identify communication trends, audience reactions, key narratives, and information peaks across media channels
- Apply quantitative and qualitative research methods to interpret media coverage and marketing performance
- Automate data cleaning, classification, and reporting processes using Python, Excel, and BI tools
- Transform complex research findings into clear insights, visualizations, and strategic recommendations
- Design prompt-based workflows for lar
- Maintain and work with SQL databases for an energy monitoring system, including data extraction, validation, and analytical support
- Analyze energy consumption data, monitor deviations, and support forecasting of future values
- Apply statistical and machine learning methods, including regression analysis and clustering, to identify patterns, segments, and predictive insights