Hire the Best Transaction Processing Specialists
in Ukraine

More than 3,000 reviews on G2
Rating is 4.5 out of 5.
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Oleksii Z.

Irpin', Ukraine

$30/hr
5.0
3 jobs

I am a senior EMV L3 certification and payment integration consultant with 10+ years of hands-on experience in POS, SoftPOS and ATM solutions. I have delivered 50+ successful Visa, Mastercard MTIP, JCB, Amex and UnionPay certifications for POS/ATM vendors, acquiring banks and processors across Europe, the Middle East and Asia. My core expertise includes: • EMV Level 3 certification (Retail & Cash) • POS, SoftPOS (CPoC / MPoC) and ATM integrations • ISO8583 transaction flows and payment debugging • Processor-side integrations (Tieto, CompassPlus, Way4, SmartVista, UPC, MADA and D8-based processors) • UL / FIME certification labs and scheme simulators I regularly work with product and engineering teams at the stages where certification, scheme compliance or complex payment issues need to be resolved efficiently. Available for contract, consulting or full-time engagements. Remote.

  • Transaction Processing
  • Payment Processing
  • Business Analysis
  • FinTech Consulting
  • POS Terminal Development
  • Software QA
  • POS Terminal
  • Point of Sale & Payment Systems
  • Android App
  • Mobile App Testing
  • Payment Functionality
  • Payment Gateway
  • Manual Testing
  • Android
  • Android SDK
Andrian B.

Kyiv, Ukraine

$11/hr
5.0
3 jobs

Andrian Burii Senior specialist of treasury operations Experienced, responsible and highly motivated employee with a solid background of banking operations functions. Interested in working as writer and translator.

  • Transaction Processing
  • Translation
  • Local Operations
  • Copywriting
  • Writing
  • Essay Writing
  • Novel Writing
  • Business Translation
  • Financial Translation
  • Document Translation
  • Finance & Banking Chatbot
  • Investment Banking
  • Polish Sign Language
  • Editorial Translation
  • Bank Reconciliation
Pavlo P.

Kyiv, Ukraine

$30/hr
5.0
10 jobs

I’m Pavlo Pohuliailo, Founder of Deveteria (AI Development Team) - raised $100k in the financial year 2025-2026) Over the last few years, I’ve led 20+ AI solutions from idea to enterprise-grade production. With a team of 50+ experienced AI Engineers, AI Agent Developers, AI Researchers, IOS Mobile developers (Flutter, React Native), Frontend developers, Backend developers, Product Manager, DevOps, MLOPS, and many more. ✅ We are a fit if: Your company has a minimum of 5+ people already executing. You are the direct decision maker or can approve technical direction. Your project budget is at least $5,000 USD+ for the first phase. You aim for at least $10,000+ measurable efficiency or operational savings within 90 days from AI deployment. You are ready to begin within the next 2 weeks. ❌ We are not a fit if: Pricing is the primary factor above outcome, speed, and quality. You expect provable meaningful results inside 14 days or less. Your business falls under gambling, adult, or similar restricted categories. You are not collaborative or not open to strategic guidance. ⚡ Real Results ✅ TOINGG – Handles 10,000+ AI calls/min with 99.9% uptime ✅ AI Outreach Engine – Converted 200 cold messages → 8 booked meetings ✅ Trusted globally – by startups, agencies & enterprises across the US, UK, UAE, Australia and many more.. 🧩 Our Expertise 🔊 AI Voice & Communication - AI calling agents (TOINGG – our own product) - Voice interviewers & virtual receptionists - WhatsApp + Voice chatbot integrations - Sentiment-aware, memory-powered bots 🧠 Autonomous AI Agents - Multi-agent systems for recruiting, trading & operations - GDPR & EEOC-compliant recruiter AI - RAG pipelines + LLM-based decision logic - Hybrid human + AI workflows 🛍️ eCommerce & Retail AI - Shopify-integrated voice bots - Dynamic product recommendation systems - AI-powered sales & support automation 📊 AI Analytics & Insights - Personalized recommendation engines - AI-driven dashboards & business forecasting - Automated reporting with natural-language summaries 💼 Custom AI Use-Cases - Legal AI (Spanish law databases – RAG-based) - AI content & script generators for marketing - Healthcare marketplaces with smart matching 💡 How We Help 🔨 End-to-End Product Development - From idea → MVP → scale 👥 Team Augmentation - Add our vetted AI engineers or full dev pod to your team ⚙️ Optimize or Scale Existing Systems - We take over, refactor, and scale existing products seamlessly 🤝 Why Teams Work With Us ✅ Proven AI & Product Experience – not just prototypes, we ship in production ✅ Startup-Minded Speed – we build like cofounders, not contractors ✅ Enterprise-Grade Quality – security, compliance, uptime built-in ✅ Transparent Estimates – no surprises, every milestone defined ✅ Expert-Led Team – 32 vetted AI engineers & product specialists 💬 Let’s Talk We usually respond within minutes. Whether you’re building a new AI product or scaling an existing one — let’s make it production-ready. 📩 Message me today and let’s bring your AI vision to life.

  • NestJS
  • Node.js
  • Chatbot Development
  • n8n
  • Supabase
  • Next.js
  • Amazon Web Services
  • Full-Stack Development
  • React Native
  • web3.js
  • Blockchain
  • PostgreSQL
  • AI Bot
  • React
Liudmyla R.

Kharkiv, Ukraine

$17/hr
4.1
13 jobs

Hello! I'm attentive to details and I'm good at working with data and all kinds of documents. I like to work with Quickbooks Online (Bank transactions, Invoices, Accounts Payable, Accounts Receivable, Reconciling accounts), Excel and Google sheets (data consolidation, manipulation, re-organization, filtering, sorting, validation, and cleanup, import, conversion, functions, formulas, charts, flow charts, tables, pivot table, pivot charts, etc.) I have 5+ years of experience part-time working as a Quickbooks Online Bookkeeping Assistant and a Virtual assistant at Upwork, 5+ years of experience full-time working as an accountant (complete cycle of bookkeeping and tax accounting for Ukrainian companies), and 10+ years of experience full-time working as a foreign trade activity specialist in purchasing and logistics departments. (My job involved: • Internet research and verification of information about suppliers • preparing statistical reports, data analysis, maintaining databases • conducting business correspondence with foreign suppliers • organizing business trips and appointments • collaboration with transport and logistics companies, • tracing of international transportation of imported goods, • preparing documents for customs clearance of goods, • calculating of payments • control of mutual settlements) Don't hesitate to contact me!

  • Transaction Processing
  • Bank Reconciliation
  • Accounting Basics
  • Invoicing
  • Data Entry
  • Microsoft Excel
  • Bookkeeping
  • Intuit QuickBooks
  • Google Docs
  • Data Analysis
  • Organizational Behavior
  • English to Russian Translation
  • Business Correspondence
  • Project Management
Max M.

Uzhhorod, Ukraine

$25/hr
5.0
4 jobs

I’m a Senior UI UX Designer with over 10 years of experience helping companies create the best UI UX design and improve SaaS dashboards, B2B platforms, and complex web design and mobile app design projects. My focus is on designing intuitive user experiences for data-heavy dashboards, workflow-driven tools, and modern UI UX design, mobile app design & web design projects used in professional environments such as Sports, Healthcare, Marketing, FinTech, Real Estate (PropTech), Food Ordering, Delivery, and AI platforms. I help founders, product teams, and startups simplify complex workflows and create clean, modern UI UX design including mobile app design & web design that makes their software platform look credible, scalable, and ready for growth. Whether you need a great UI UX design for a platform, a mobile app design for iOS or a conversion-focused web design for your landing page, I deliver results that align with your business goals. 🚀 PROVEN BUSINESS IMPACT & PRODUCT DESIGN As a dedicated product designer, I bridge the gap between aesthetics and functionality in UI UX design. I have successfully completed over 75 UI UX design projects where I redesigned the experience to improve user retention. My mobile app design solutions helped clients launch campaigns 60 % faster by creating a clean, modern interface with a component-first approach in UI UX design. I have increased user satisfaction scores by 85 % through rigorous UI UX design audits and improved page structure. My web design work has led to a 35 % boost in repeat collaborations due to my fast communication and reliable delivery. I have collaborated as a graphic designer to ensure brand consistency across 100 % of digital touchpoints. 🛠️ EXPERTISE IN FIGMA & SYSTEMS THINKING I am the ideal UI UX Designer for teams that want someone who can own the design direction. My Figma proficiency allows me to translate the prototype into a clean, production-ready design that a web developer or web designer developer can implement without friction. My expertise includes: Figma Mobile App Designer: I build 100 % scalable component-based UI UX design systems with consistent UI UX design tokens for any mobile app design. Web Design Website Excellence: I provide documented specs for web designer tasks, understanding HTML/CSS basics and WordPress constraints. UI UX Designer SaaS Figma: I design complex and clean interfaces for approval flows, document management, and role-based applications, increasing UI UX design user engagement by 45 %. Mobile App Design AI: I specialize in designing UI UX design features powered by AI, creating intuitive and visually appealing interfaces with a 35 % boost in repeat collaborations. 📋 WHAT I WILL DO FOR YOU As your product design lead, my responsibilities include taking your vision from a rough idea to a cohesive product with perfect UI UX design. I create wireframes and high-fidelity mobile app design screens that simplify data-dense UIs by 50-70 %. I perform a deep UI UX design audit to identify up to 30 weaknesses and propose 10 improvements with a clear rationale. I deliver a web design strategy that ensures your website remains 100 % user-friendly while handling form-heavy workflows. I collaborate with the team to ensure every web design micro-interaction is ready for React.js or Next.js implementation. I integrate UI UX designer AI features to enhance user experience and simplify complex workflows by 65 %. 🧰 MY TECHNICAL TOOLKIT I use Figma to create scalable UI UX design for SaaS dashboards, delivering structured systems that reduce implementation time by 30 %. Whether you need a UI UX designer Shopify expert for an eCommerce project, or a UI UX designer crypto specialist, I facilitate workshops to validate UI UX design ideas 2x faster. Through ProtoPie and Balsamiq, I create interactive mobile app design prototypes that increase user satisfaction by up to 40 %. From Wix web design to web design WordPress projects, I ensure pixel-perfect visuals. My process helps clients achieve 50 % clearer workflows across all UI UX design platforms. 🤝 LONG-TERM PARTNERSHIP If you are looking for a skilled UI UX designer for a long-term role, I am comfortable working independently. I have a strong portfolio as a game UI UX designer and mobile app designer, showcasing work on data-heavy dashboards and web-based platforms. Are you ready to transform your mobile app design into a high-conversion, scalable platform? Would you like me to perform a preliminary UI UX design audit on your current web design to identify immediate areas for improvement? It’s free! 😉 I am the ideal candidate if you want thoughtful improvement and a UI UX designer who is confident enough to elevate the overall professionalism of your brand! Would you like me to start by reviewing your current Figma files or your existing website? Let me know!

  • Web Design
  • Graphic Design
  • Figma
  • Adobe Photoshop
  • User Interface Design
  • Landing Page
  • UX & UI
  • User Experience Design
  • Adobe Illustrator
  • Mobile App Design
  • Mobile UI Design
  • Wireframing
  • UI/UX Prototyping
  • Logo Design
  • Adobe XD
  • Illustration
  • Branding
  • UI Graphics
  • UX Research
  • JavaScript
Iryna Z.

Kharkiv, Ukraine

$30/hr
4.9
17 jobs

Are you looking for a Frontend WordPress Developer who can bridge the gap between complex Figma designs and high-converting reality? I help digital agencies and enterprise businesses reduce technical debt and accelerate time-to-market by 40% through precision-engineered web solutions. As a dedicated Drupal Frontend Developer and CMS Frontend Developer, I ensure your platform isn't just "functional" but acts as a scalable growth engine that eliminates "overwrite" issues and performance bottlenecks. In today’s market, a slow website is a lost lead. Whether you require a Frontend WordPress Developer for a 50-page WooCommerce redesign or a Drupal Frontend Developer to architect a headless content infrastructure, my goal is a true 1:1 implementation of the Figma design, without compromises. I specialize in taking care of the mobile version of sites already under construction, ensuring clean visual hierarchy on smaller screens and maintaining design consistency between desktop and mobile. As an experienced CMS Frontend Developer, I understand that "the goal is to maintain the site, make visual adjustments when needed, and ensure everything works correctly." I offer fast and reliable work with a very strong eye for detail, including lines, composition, and typography. Core Expertise & Technical Stack My workflow is built on a foundation of WordPress Development and Drupal architecture, utilizing HTML5, CSS, JavaScript, and PHP to build robust digital products. * WordPress Ecosystem: I am a Frontend WordPress Developer with deep mastery of WordPress Theme development and WordPress Plugin customization. I work extensively with Elementor, but my true strength lies in custom Front-End Development using React and jQuery for dynamic interfaces. * Enterprise CMS: As a Drupal Frontend Developer, I build structured, accessible, and performance-optimized themes. My experience as a CMS Frontend Developer ensures that your CMS Development follows best practices for SEO and Core Web Vitals. * E-commerce & Scaling: From WooCommerce optimizations to Shopify store setups, I help brands scale. I often collaborate with a backend developer to ensure seamless data flow or act as a product manager to oversee the full lifecycle of a Laravel or Node.js integration. Why Clients Choose My Services When you hire a Frontend WordPress Developer, you aren't just paying for code; you are paying for clear and good communication and reliable project management. As your CMS Frontend Developer, I take ownership of the technical implementation so you can focus on your business. I have a strong experience with WordPress + WooCommerce and a good sense for modern, clean web design. If your current project "needs to be completely restructured and redesigned," I am the Drupal Frontend Developer who can identify and resolve mobile UX friction points while delivering a flawless experience on mobile devices. My Commitment to Your Project: 1. Technical Implementation: I provide a fully functional implementation with clean integration with existing site layout. 2. Responsiveness: I am a mobile responsive expert ensuring no breakpoints when scaling down—your site will scale like an image. 3. Speed: I move quickly and efficiently to meet a firm launch deadline, often completing multiple pages per day. 4. UX/UI Focus: My background as a ux/ui wordpress specialist allows me to optimize layout so ads or content do not disrupt UX. Comprehensive Solutions for Complex Problems A common issue in Headless CMS Workflows is stale data and manual re-syncs. As a CMS Frontend Developer, I architect solutions using REST API and GraphQL to eliminate syncing entirely. If you need a Frontend WordPress Developer who understands Web Design principles, I ensure every WordPress Plugin and WordPress Theme I touch is optimized for 95+ Google PageSpeed scores. Sometimes, a project requires a manager to coordinate between the ux/ui wordpress team and the backend developer. I fill that gap, providing clear communication and reliability throughout the process. Whether it’s PHP bug fixing, Laravel logic, or Node.js API integrations, I ensure the Front-End Development remains the authoritative layer for user engagement. What You Can Expect (Deliverables) * Technical Implementation & Final Design: A true 1:1 implementation of your Figma/XD/Sketch files. * Advanced WordPress Development: Custom-coded solutions that don't rely on bloated plugins. * Drupal Frontend Developer Support: Complex theme hooks and Twig templating for enterprise sites. * Performance: 40% faster load times through clean code (no messy !important tags). * Mobile Excellence: A polished, intentional, and on-brand mobile experience. I am an advanced developer who is able to think outside of the box. If you are looking for a Frontend WordPress Developer, Drupal Frontend Developer, or CMS Frontend Developer who takes pride in clean execution and great user experience, we should talk. Let’s build something exceptional.

  • WordPress
  • HTML
  • PHP
  • JavaScript
  • CSS
  • WooCommerce
  • Drupal
  • Web Design
  • React
  • WordPress Development
  • CMS Development
  • HTML5
  • WordPress Theme
  • WordPress Plugin
  • Front-End Development
  • Elementor
  • Shopify
  • Node.js
  • jQuery
  • Laravel

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