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Azaz U.
$18/hr
100% Job Success
$40K+ earned
Available now
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Are you looking for a reliable, Azure-certified .NET developer who builds modern, scalable, and secure applications using the latest technologies? With 8+ years of professional experience, I specialize in full-stack .NET development — from robust Web APIs and .NET MVC applications to cloud-native systems and data-driven platforms. What I Can Do for You: 🚀 Full-Stack .NET Development • ASP.NET Core (latest LTS), .NET 6/7/8 • .NET MVC with modern Razor patterns • Blazor Server & WebAssembly 🔗 Web API & Integrations • RESTful API design & development • API versioning, Swagger / OpenAPI • Secure APIs with JWT, OAuth2, Entra ID • High-performance, scalable endpoints ☁️ Cloud & DevOps • Azure App Services, Functions, Container Apps • CI/CD pipelines (Azure DevOps, GitHub Actions) • Key Vault, App Insights, monitoring & logging 🔐 Identity & Security • Microsoft Entra ID / Azure AD B2C • External logins (Google, Microsoft) • OAuth2 & OpenID Connect 💳 Payments & FinTech • Adyen integrations: Drop-in, Express Checkout, Apple Pay, Google Pay, 3DS, recurring billing 🗄 Databases & Data Layer • SQL Server – stored procedures, indexing, tuning • MongoDB – scalable NoSQL design • Azure Cosmos DB and blob Storage– partitioning, performance optimization • Entity Framework Core & LINQ 📨 Messaging & Background Jobs • RabbitMQ, Quartz.NET • Event-driven & async processing 🎨 Frontend & JavaScript • Modern JavaScript (ES6+) • Bootstrap, HTML5, CSS3 • Dynamic UI with Blazor and MudBlazor 🧪 Testing & Quality • xUnit, Moq, unit & integration testing • SOLID principles, clean code, TDD practices 🧩 CMS Solutions • Umbraco & Optimizely custom development Certifications: • Microsoft Azure Associate Developer (AZ-204) • Power Platform Fundamentals (PL-900) • RPA Developer Foundation Training Why Clients Choose Me ✔ Top-Rated on Upwork with proven delivery ✔ 8+ years of real-world .NET experience ✔ Clear communication & agile delivery ✔ Strong problem-solving mindset ✔ Long-term, client-focused partnership Let us collaborate to modernize your legacy applications or develop high-performance solutions that will propel your business forward. Contact me today to begin!
$30/hr
$10K+ earned
Offers consultations
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👋 Hi, I’m a Software Engineer Focused on Clean, Scalable and Reliable Systems I build well-structured, maintainable, and efficient software using modern JavaScript/TypeScript tools. My focus is always on clean architecture, code quality, and ensuring systems remain stable and easy to evolve over time. I’ve worked across different parts of the stack — APIs, services, integrations, cloud infrastructure, and application logic — and enjoy designing solutions that are simple, predictable, and scalable. ✨ What I’m Especially Good At - Node.js, TypeScript & modern JavaScript ecosystems - React, Vue.js, Next.js - System design & clean architecture - API development, integrations & automation - Testing best practices (unit, integration, e2e) - CI/CD pipelines, Docker & cloud environments - Optimization, performance, and reliability improvements - Working across backend, services, and occasional frontend needs 🧩 How I Work I communicate clearly, focus on solving real problems, and ensure every solution is reliable, maintainable, and future-friendly. Clients value my ability to simplify complexity and deliver production-ready results with consistent quality. If you need a software engineer who brings clarity, structure, and long-term thinking — I can help.
Eleonora A.
$75/hr
$31 earned
Available now
Offers consultations
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Senior consultant. 8+ years across e-commerce, fintech, banking and AI products. I help teams reduce product, compliance, delivery and release risk before high-impact launches. Focus areas: Product & delivery leadership: roadmap alignment, stakeholder management, scope definition, prioritization, delivery governance and executive reporting Agile delivery: Scrum, sprint planning, backlog refinement, cross-functional coordination, release planning and risk-based decision making Accessibility compliance: WCAG 2.2 AA, ADA, EAA AI validation: LLM outputs, agent workflows, MCP integrations, hallucination risk, prompt/model drift and regression across product changes Release-critical audits: payment flows, regulated journeys, customer-impacting changes, operational readiness and go-live decisions Web and mobile: audit, gap analysis, remediation plan, evidence-based go / no-go I work best on products where mistakes are expensive: money movement, compliance exposure, accessibility obligations, AI reliability, delivery delays, stakeholder misalignment or executive-level release decisions. Tools and platforms: Product, delivery and collaboration: Jira, Xray, TestRail, Confluence, Notion, Figma, Miro Agile and project delivery: Scrum, Kanban, sprint planning, roadmap tracking, RAID logs, release governance, stakeholder reporting Accessibility: axe DevTools, WAVE, Lighthouse, NVDA, VoiceOver Automation and API: Playwright, Appium, Maestro, Postman, Swagger/OpenAPI Visual regression: Percy, Applitools, Chromatic Cross-browser/device coverage: BrowserStack, Sauce Labs, LambdaTest Observability and incident response: Datadog, New Relic, Kibana Analytics and product behavior: Amplitude, Segment, UXCam, Firebase, Google Analytics Data and reporting: Snowflake, Power BI, Tableau Commerce, payments and CRM: Shopify, Solidus, Adyen, Klarna, Dynamics 365, Salesforce AI tools: Claude, ChatGPT, Gemini, Mistral, Grok, Dust, Cursor, Copilot
$10/hr
$1K+ earned
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🔍𝗠𝗮𝗻𝘂𝗮𝗹 𝗤𝗔 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘀𝘁 | 𝗪𝗲𝗯 & 𝗠𝗼𝗯𝗶𝗹𝗲 | 𝗥𝗲𝗱𝘂𝗰𝗲 𝗕𝘂𝗴𝘀, 𝗦𝗵𝗶𝗽 𝗙𝗮𝘀𝘁𝗲𝗿 Building a high-quality web or mobile app? I specialize in ensuring smooth, bug-free experiences across Web, iOS, Android, and Desktop platforms—before your users ever encounter issues. With over 2+ years of hands-on QA experience, I’ve tested 15+ Android apps across diverse domains and E-commerce website, consistently reducing production bugs through smart test planning, proactive defect detection, and clear communication with dev teams. 🔧 𝗧𝗼𝗼𝗹𝘀 & 𝗦𝗸𝗶𝗹𝗹𝘀: ✅ Manual Testing (Strong) ✅ API Testing: Postman, Browser DevTools ✅ Performance Testing: JMeter ✅ Cross-Platform Testing: Web, iOS, Android (via BrowserStack & real devices) ✅ Cross-Browser Testing: Chrome, Firefox, Safari, Edge ✅ UI/UX Consistency: Figma vs. Live UI ✅ Test Design & Execution: Regression, Smoke, Sanity, UAT ✅ Bug Tracking: Jira, ClickUp ✅ Documentation: Test Plans, Test Cases, QA Reports, Bug Reports ✅ Debugging Tools: DevTools (Network, Console, Elements, Lighthouse) 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? 𝗣𝗿𝗼𝘃𝗲𝗻 𝗜𝗺𝗽𝗮𝗰𝘁: Helped teams ship with confidence by catching critical bugs early 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝘃𝗲 𝗠𝗶𝗻𝗱𝘀𝗲𝘁: Comfortable working alongside developers, designers, PMs, and stakeholders 𝗧𝗲𝗰𝗵-𝗦𝗮𝘃𝘃𝘆 𝗤𝗔: My front-end understanding enables faster, clearer, and more actionable bug reporting 💡 Let’s connect! I’m ready to help make your next release smooth, stable, and user-approved. 🚀
$20/hr
$0 earned
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Full Stack Developer | Web Expert | API | AWS | Ruby on Rails | Angular | Nodejs | Reactjs | AI Agents | Databases | cloud services | QA testing | Web designer 🚀 Interested in turning your idea into a scalable and successful product? 🤝 Let’s connect — I’d be happy to share my experience and work with you on the best solution 💡✨ Hi there! 👋 I’m a Full-Stack Developer with 7+ years of experience building scalable, high-performing web applications and SaaS platforms. I specialize in crafting clean, efficient, and maintainable code that helps businesses grow faster. Over the years of my activity. I have worked with different industries, this formed 𝗧𝗛𝗘 𝗠𝗔𝗜𝗡 𝗙𝗢𝗖𝗨𝗦 𝗢𝗡 SaaS E-commerce FinTech Automotive & Manufacturing, Travel & Hospitality What Value I Bring to Your Project 📌Technical Risk Management 📌Direct & Transparent Communication 📌Proven Development Processes 📌Timezone Flexibility 𝗧𝗘𝗖𝗛 𝗧𝗢𝗢𝗟𝗞𝗜𝗧 📌 Front-End: React, Angular, Vue.js, TypeScript, JavaScript, jQuery, HTML5, CSS, SCSS, HAML, Bootstrap, Tailwind 📌 Back-End: Node.js, Express.js, PHP/Laravel, Sinatra, Ruby on Rails, Spree, AWS (Aurora, RDS, SES, S3, Lambda) 📌 Databases: MySQL, PostgreSQL, MongoDB 📌 Payments & Integrations: Stripe, PayPal, Adyen, Crypto, EGHL, Meta commerce integrations, Webhooks 📌 Cloud Services: AWS, Google Cloud, Azure 📌 API Integration: REST, GraphQL 📌 Real-time Features: WebSockets, ActionCable, SSE for live dashboards & notifications 📌 DevOps & Cloud: Docker, CI/CD, Scalable architecture design 📌 𝗔𝗩𝗔𝗜𝗟𝗔𝗕𝗜𝗟𝗜𝗧𝗬 My team works in different time zones, which allows us to always be in touch. Feel free to contact me, I will find the right solution for your project and help your business thrive!
Andrey K.
$30/hr
100% Job Success
$100K+ earned
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👋 Hi there! My name is Andrey, I am a software engineer and manage a team of developers. Together we have 10000+ hours of experience in developing complex web and mobile applications on Bubble, FlutterFlow, Xano, OpenAI, NodeJS. All of our developers are Bubble certified. We have developed a ready-made platform on Bubble for creating SaaS solutions like ERP, CRM, and AI Assistant. Based on this platform, we can develop SaaS products quickly and efficiently. Always in touch and ready to discuss your project. 𝐊𝐢𝐧𝐝 𝐫𝐞𝐠𝐚𝐫𝐝𝐬, 𝐀𝐧𝐝𝐫𝐞𝐲
Brainfab
Associated with
Brainfab
$100K+
earned
Jenny A.
$30/hr
100% Job Success
$900+ earned
Available now
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Hi, I'm Jenny — a native Swede based in Berlin, offering voice recording and customer care services in Swedish and English. 🎙️ Voice Recording I record clear, natural-sounding voice samples for AI training and voice model development. 📞 Customer Care — 15+ Years of Experience Customer Care Manager, Customer Success Agent, Chat Moderator, and Vendor Manager for international companies. I've: Led teams and outsourced support across 5 markets (Scandinavia, English, French, DACH, Eastern Europe) Handled fraud prevention, payments, and legal/compliance requests Moderated chats and enforced community guidelines Localized services for the Swedish market 🌍 Languages Swedish — Native English — Fluent German — Conversational I'm reliable, detail-oriented, and easy to work with. Let's talk about your project! Skills: Customer Service, Customer Success, Vendor Management, Chat Moderation, Voice Recording, Voice Over, AI Training Data, Fraud Prevention, Swedish, English
$40/hr
100% Job Success
$200K+ earned
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High-Risk Merchant Strategist & E-commerce Analytics Expert | 15+ Years in Global Payment Infrastructure, Risk & Revenue Optimization Expert End-to-End Payments Strategy | From Approval to Optimization As a seasoned Payments Head with over 15 years of experience, I help e-commerce, fintech, SaaS, and high-risk businesses build, scale, and optimize their global payment infrastructure. I work with merchant acquirers, payment gateways, fraud systems, BI tools, and finance teams to ensure not only approval, but maximum conversion, low decline rates, and full compliance across markets. Expertise Includes: • High-Risk Merchant Account Setup (US, EU & Offshore) • Global Payment Stack Design (PSPs, acquirers, processors), PSP & Acquirer Negotiations and Relationship Management • Multi-gateway Strategy (redundancy, failover, smart routing, Load Balancing and Cascades) • Payment Gateway Integration based on Network Tokens, PAN and Subscription orchestra • Payment Solutions & Chargeback Reduction and representments • Fraud Prevention, Risk Monitoring & Compliance [PCI DSS] • Cross-border Optimization (Currency Conversion, FX, Local Payment Methods) • Custom Payment Workflows – Check Out flow and AB Tests • Tableau Dashboards, Assist in Paid Ads, Organic Marketing, CPA and LTV • KYC/AML Documentation Support & Offshore Incorporation Guidance and Structuring • Monitor approval rates and decline rates over time • Analyze ad spends ROI across platforms • Benchmark profitability across geographies Industries Served: • E-commerce, High Risk • Market Places, Fintech and Betting • Wellness, Fitness & Subscription Models • Supplements / Dating / Apparels I help companies: • Improve approval rates and reduce declines • Set up Geo-optimized routing to boost cross-border performance • Reduce fraud losses and chargeback ratios • Track profitability across channels (LTV, CPA, fraud rate, refund rate) • Integrate BI dashboards for better executive reporting • Navigate compliance, especially in sensitive or regulated sectors Tools & Tech: • Gateways: Adyen, Checkout.com, Stripe, NMI, Authorize.Net, Braintree, Chase, Shopify and PayPal • Network Tokens, PAN • Fraud/Compliance: Kount, 3DS, Ethoca • Analytics: Tableau, Looker Studio, Google Sheets Why Work with Me: • Former Head of Payments for global brands handling $40M+ annual volume • Trusted by 100+ startups, D2C brands, and fintech companies • Deep insight into both payment strategy and growth metrics • Deep experience in compliance, fraud, offshore strategy, and chargebacks • Fast, discreet, senior-level execution
$6/hr
$10K+ earned
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💫Hello! I'm a highly motivated and hardworking customer service professional with over 10 years of experience in delivering outstanding support and fostering positive client relationships. My dedication to excellence and proactive approach ensure that tasks are not just completed, but done right. I bring a positive attitude and a "can-do" spirit. Let’s work together to create exceptional customer experiences that drive loyalty and satisfaction! Experiences: 💎I’m a dedicated Fintech professional with over five years of experience specializing in customer account verification, strict adherence to Know Your Customer (KYC) processes, and fraud prevention. My expertise lies in safeguarding customer accounts, ensuring compliance with regulatory standards, and providing top-tier support to resolve complex issues efficiently. 💎Was an Outbound Agent with experience in the banking sector, dedicated to ensuring customer satisfaction through thorough follow-ups and resolution assurance. My role involves reaching out to customers post-interaction to confirm their issues have been fully resolved and their concerns addressed. 💎A Chat and Email Support Agent with over two years of experience providing top-notch customer service through digital channels. My focus is on delivering fast, accurate, and empathetic support to ensure customer satisfaction and build lasting relationships. 💎Been with the Social Media & Reviews Team assigned to manage customer feedback and reviews across platforms like Trustpilot, Google Play, and iOS. My role involves crafting thoughtful public responses to customer reviews, engaging with customers to resolve their concerns, and ensuring their issues are fully addressed. 💎In my current role, as an Office Manager with a comprehensive role in overseeing office operations, ensuring smooth day-to-day functionality, and fostering a safe and engaging work environment. My proactive approach ensures that everything runs efficiently, from office supplies to employee engagement activities. I build and maintain strong relationships with vendors, handle payments, and assist in planning company activities. As the Occupational Safety and Health (OSH) Officer, I am responsible for ensuring all safety protocols are followed, making the office a safe and compliant workspace. Core Skills and tools used: • I excel in delivering exceptional customer service across multiple channels, including email, chat, and phone support. •Expert in using Microsoft Office applications, including Word, Excel, PowerPoint, and Outlook. • Experienced with different CRM tools (e.g., Intercom, Salesforce, Amazon Connect, Passfort, Outlook, Microsoft Teams, Google Suite, Gmail, Canva, Adobe PDF, Cybersource, Adyen, Clickatell, Netsuite and various platforms). Qualities: I am a dedicated and hardworking individual with a positive attitude, no matter the situation. My goal-oriented mindset ensures that I stay focused on achieving targets while maintaining a high standard of performance. As a fast learner, I quickly adapt to new tasks, tools, and processes, enabling me to work efficiently and independently. I approach every project with an owner attitude, taking full responsibility for my work and ensuring that customer satisfaction is always a top priority. I am committed to delivering excellent customer service, always striving to go above and beyond to meet client needs. My strong focus and dedication ensure that I consistently provide high-quality results in every aspect of my work.💫
$25/hr
$4K+ earned
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Certified Salesforce Developer with expertise in development, automation, and architecture across Platform, B2C Commerce, AI, Marketing Cloud, and Education Cloud. I design customized solutions that optimize operations, enhance UX, and drive measurable results. From custom apps to complex integrations, I make Salesforce work smarter to accelerate business growth. 📃List of My Certifications 🎓Salesforce Certified Administrator 🎓Salesforce Certified Platform Developer I 🎓 Salesforce Certified B2C Commerce Developer 🎓 Salesforce Certified B2C Commerce Architect 🎓 Salesforce Certified AI Associate 🎓 Salesforce Certified AI Specialist 🎓 Salesforce Marketing Cloud Email Specialist 🎓Salesforce Certified Education Cloud Consultant ☑Salesforce Development Services Offered: ◾ Custom development using Apex classes and triggers ◾ Building user interfaces with Visualforce, Lightning Web Components (LWC), and Aura components ◾ Integration expertise using SOAP (WSDL) and REST APIs with JSON and XML data formats ◾ Creating and consuming web services within Salesforce ◾ Experience in AppExchange product development and deployment ◾ Enhancing UI/UX with JavaScript and jQuery for dynamic client-side functionality ☑Platform & Cloud Expertise • Salesforce B2C Commerce (SFRA, Business Manager, ISML) • Salesforce Marketing Cloud (Email Studio, Journey Builder) • Salesforce Education Cloud Implementation • Salesforce CRM Administration • Experience Cloud (Communities) The following are the integrations I have experience with: ✔Payment Gateways: ◾PayPal ◾Adyen ◾Apple Pay ◾Stripe ◾Square ◾Skrill ◾Authorize.Net ◾Global Payments ✔Marketing Platforms: ◾Dotdigital ◾Salesforce Marketing Cloud ◾Mailchimp ✔CRM, OMS, and ERP: ◾Salesforce ◾HubSpot ◾Dynamics 365 ◾Oracle NetSuite ◾QuickBooks Online Here’s a concise overview of my key projects: ◾ Rebecca Taylor: Transformed a traditional three-step checkout process into a sleek, one-page flow, integrating Braintree and Afterpay, which led to a 15% increase in completed transactions within the first month. ◾ Cartier: Designed and implemented a return and exchange system alongside BOPIS integration, significantly enhancing customer convenience. ◾ Khaadi: Successfully integrated AX ERP for real-time inventory and pricebook updates, streamlining operations. ◾ Tanuki: Developed a loyalty points management system, increasing customer retention rates. ◾ Dermalogica: PowerReviews and Listrack integration boosted review visibility and email marketing ROI.