Hire the Best .NET Framework C# Engineers
in Estonia

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Kadri T.

Tallinn, Estonia

$50/hr
5.0
3 jobs

Making my way in IT world (so far webstores, automation, robotics), bringing extensive experience in finance, investing and aviation with me.

  • .NET Framework
  • C#
  • Microsoft Excel
  • Excel Formula
  • ASP.NET Core
  • HTML
  • SQL
  • ASP.NET MVC
  • PostgreSQL
  • ASP.NET Web API
  • .NET Core
  • Software
  • Finance & Accounting
  • Investment Portfolio Review
  • Excel Macros
Eugene O.

Tallinn, Estonia

$30/hr
4.9
48 jobs

Drawing on 18+ years of experience in diverse technologies (including Amazon Web Service), I deliver innovative, well-architected cloud-based solutions for challenging environments. As a certified AWS Solutions Architect (Professional and Associate) with AWS Security Specialty, I design, build, and optimize scalable, secure, and cost-effective architectures. Highlights: ✅ 18 years in IT; 12 years as CEO, Founder, and AWS Solutions Architect ✅ Successfully led 50+ projects for 20+ clients across industries ✅ Specialized in cloud migrations, serverless architectures, and cost optimization ✅ Certified AWS Solutions Architect (Professional & Associate) and AWS Security Specialty → Key Expertise: Cloud Architecture & DevOps ✓ Extensive experience designing serverless platforms (e.g., VOD systems, Tibica optimizations, Infoplay CMS). ✓ Proficient in IaC tools like AWS CloudFormation and Terraform for infrastructure automation. ✓ Expertise in securing systems with AWS IAM, Cognito, and Keycloak. AWS Solutions & Services: ✓ Core: AWS Lambda, API Gateway, DynamoDB, S3, CloudFront, MediaConvert, Glue ✓ Analytics: AWS EMR, Kinesis Streams, SageMaker, Athena ✓ Security: AWS Security Hub, GuardDuty, Keycloak ✓ Deployment & Optimization: AWS CodePipeline, Docker, Kubernetes, Helm Programming & Frameworks: ✓ Languages: NodeJS, Python, JavaScript ✓ Frameworks: ReactJS, VueJS, Redux, Vuetify Industries Served: → Healthcare, Mortgage, Medicine, Insurance, Retail, Advertising, Media, Security Main skills: ✓ Skilled in planning and executing cloud migrations (e.g., Docker to AWS Serverless). ✓ Expertise in optimizing serverless architectures for performance and cost (e.g., Tibica optimizations). ✓ Proven track record of designing scalable, compliant solutions for diverse industries. ✓ In-depth knowledge of AWS Well-Architected Framework and service combinations like Lambda, DynamoDB, MediaConvert, and Glue. ✓ Ability to design end-to-end secure, scalable platforms tailored to client requirements. ✓ Expertise in designing and deploying serverless architectures (e.g., VOD platform, Infoplay CMS). ✓ Skilled in integrating AWS services like Lambda, API Gateway, and CloudFront for scalability and resilience. ✓ Proficient in cost optimization strategies, including reserved instances and pay-as-you-go models. ✓ Experience in securing systems with IAM, Cognito, and Keycloak. ✓ Hands-on knowledge in managing infrastructure with IaC tools like CloudFormation and CodePipeline. Case Studies Summary 1. Video on Demand (VOD) Platform for Roligt AB - Developed a serverless VOD platform with a super-admin panel, publishing platform, and secure video page. - Leveraged AWS services like MediaConvert, MediaPackage, Lambda, API Gateway, DynamoDB, and CloudFront. - Achieved scalability, cost efficiency, and GDPR compliance​​. 2. Custom Digital Signage System for Infoplay - Built a serverless content management system reducing costs by up to 80%. - Integrated AWS Lambda, API Gateway, S3, Cognito, DynamoDB, and MediaConvert for scalability and flexibility​. 3. Tibica Cloud Platform Optimization - Enhanced performance and reduced latency by optimizing serverless architectures. - Transitioned Tibica’s Lambda functions to ARM-based architecture for cost savings and better efficiency​. 4. Docker to AWS Serverless Migration - Migrated Docker applications to AWS Serverless architecture using Lambda, resulting in up to 40% cost savings and auto-scaling capabilities​. 5. AWS Cost Optimization - Conducted a Well-Architected Framework Review to align cloud operations with best practices. - Identified cost-saving opportunities like rightsizing and reserved instances​. 6. Secure SSO Solution - Built a custom SSO solution using Keycloak and AWS services like EC2, RDS, and Cognito, achieving extensive customization and significant cost reduction compared to alternatives like Okta​. 7. MVP Development - Created scalable and secure MVPs on AWS using Lambda, API Gateway, Glue, and other serverless technologies. - Optimized for rapid iteration, security, and cost-efficiency​​.

  • DevOps
  • Amazon EC2
  • AWS Lambda
  • Docker
  • Python
  • Amazon S3
  • Kubernetes
  • API Integration
  • Cloud Architecture
  • Serverless Computing
  • AWS CloudFormation
  • Cloud Migration
  • Web Application Development
  • Amazon Web Services
  • Node.js
  • PostgreSQL
  • AI Agent Development
  • React
  • CI/CD
  • Terraform
Oleksandr S.

Tallinn, Estonia

$40/hr
5.0
66 jobs

🏆 Senior Full-Stack AI Developer | React • Next.js • Node • React Native | $200K+ Earned · 100% JSS Founders hire me when their MVP needs to ship in weeks - and still hold up past 100K users. I build AI-powered SaaS and mobile apps that real customers pay for. The kind of code your next developer won't have to rewrite. PROBLEMS I SOLVE Most founders come to me with one of these: ❌ No clear technical roadmap — every developer gives a different answer. ❌ An existing product that's slow, breaking, or impossible to maintain. ❌ A codebase from cheap developers — broken architecture, missed deadlines, technical debt blocking every new feature. ❌ Pressure to ship fast — but no trust left after being burned before. Here's why it keeps happening: most freelancers code feature by feature without thinking about what happens at month six. I don't. Every decision I make — stack, architecture, deployment — assumes your product will grow, your team will change, and the next developer will need to read what I wrote. 120+ shipped projects. 20+ countries. Zero rebuilds requested. ──────────────────────────────────────── WHAT YOU GET 🔷 A technical roadmap before a single line of code is written Every custom enterprise system starts with a plan. As a Full Stack Developer React specialist, I map out stack decisions, data models, and integrations first — whether it's a full stack developer React Node API, a full stack developer Supabase React platform, or a full stack developer React Firebase app. Projects without a plan cost 3x more to fix later. 🔷 A production-ready product, not a dressed-up prototype As a Full Stack Developer React Node developer, I build advanced B2B products ready to go live immediately. Rapid delivery without cutting corners — clean code, testing, CI/CD, deployment pipelines — everything needed to stay live under real load. 🔷 Frontend and UI/UX users actually enjoy As a react developer and web developer, I build fast, intuitive interfaces — CRM systems, dashboards, marketplaces with real-time updates, automation platforms, and SaaS products — as a full stack node.js react system where frontend and backend work as one. For API-driven products I work across react nodejs and react redux architectures. 🔷 Mobile apps across both platforms from one codebase As a react native developer and mobile app developer, I've delivered 30+ apps that feel native and perform well. For projects where Flutter fits better, I work with that too. My react node react native approach keeps mobile and web in sync without doubling the cost. 🔷 Backend systems that don't break under pressure Node js with Express, Django and Flask for Python-heavy workloads, Stripe, and cloud infrastructure — built with proper auth, business logic, and integrations. As a python full stack developer I handle data pipelines, automation, and react js applications where performance matters. 🔷 AI features that add real product value As an AI-focused full stack engineer, I build AI-powered, AI-driven, AI-enhanced, and AI-focused features — agentic workflows, AI-assisted and AI-augmented interfaces, multi-agent systems with MCP, chatbot and chat experiences, and LLM integrations via OpenAI or Claude Code. If your SaaS needs to be AI-native, I know how to build that. 🔷 E-Commerce, CMS & broader stacks As a Full Stack Developer React, Shopify specialist, and wordpress developer, I build storefronts and platforms that convert. I've also worked across laravel vue, mern, ruby on rails, react next node supabase react native, and .net full stack developer codebases — adapting to what you have instead of forcing a rewrite. ──────────────────────────────────────── MY APPROACH 1. Discovery first — I act as your architect and partner before writing a single line. 2. Architecture before code — a plan you approve. No black boxes. 3. Rapid, iterative delivery — real progress every week. I'm a fast builder who doesn't cut corners. 4. Honest communication — you hear about problems from me first. 5. Built to hand off — clean, advanced code your team can work with. ──────────────────────────────────────── SDA COMPANY Behind this profile is SDA Company — a focused, senior software development team I founded. We're not hiring — we're selective. Over 5+ years we've helped clients raise funding, hit deadlines, and scale to thousands of users. As CEO and lead specialist, I oversee every project directly. You get a founder with skin in the game, backed by a team that executes. ──────────────────────────────────────── 💡 Have a product to build or a platform to fix? Send me a message — no pitch. Just a real conversation. Stack: React / React.js, Next.js, React Native, Node.js, Python, Django, .NET, Laravel, Supabase, Firebase, PostgreSQL, MongoDB, Shopify, WordPress, MERN, GraphQL, Stripe, AWS, Docker, Flutter

  • React
  • JavaScript
  • Node.js
  • HTML
  • CSS
  • HTML5
  • CSS 3
  • PHP
  • Python
  • MySQL
  • Vue.js
  • React Native
  • TypeScript
  • WordPress
  • MongoDB
  • Laravel
  • Web Design
  • Redux
  • Tailwind CSS
  • Responsive Design
Sarfraz H.

Tallinn, Estonia

$20/hr
5.0
10 jobs

𝐈 𝐞𝐦𝐩𝐨𝐰𝐞𝐫 𝐭𝐞𝐚𝐦𝐬 𝐭𝐨 𝐬𝐡𝐢𝐩 𝐟𝐚𝐬𝐭𝐞𝐫 𝐭𝐡𝐫𝐨𝐮𝐠𝐡 𝐩𝐫𝐨𝐯𝐞𝐧 𝐀𝐈-𝐀𝐮𝐠𝐦𝐞𝐧𝐭𝐞𝐝 𝐐𝐀 & 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐭𝐫𝐮𝐬𝐭. 𝐓𝐨𝐨𝐥𝐬: Playwright | Selenium | Cypress | Appium | NightwatchJS | ACCELQ | Mabl | Testim 𝐖𝐨𝐫𝐤𝐅𝐥𝐨𝐰: BrowserStack | GitHub Actions | Jenkins | GitLab | Dockers | CI/CD | Framework design 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: AWS | ISTQB-CTFL | CSM | CSPO 🧪𝐌𝐚𝐧𝐮𝐚𝐥 𝐐𝐀: Requirment Analysis | Test Cases Design | Test Execution | Cross-Browser Testing | Bug-Reporting / Follow-up 🤖 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐞𝐝 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 𝐓𝐨𝐨𝐥𝐬: Playwright | Selenium | Cypress | Appium | NightwatchJS | Ranorex | JMeter | k6 🧰 𝐎𝐭𝐡𝐞𝐫 𝐓𝐨𝐨𝐥𝐬 & 𝐃𝐞𝐯𝐎𝐩𝐬: TestRail | TestMo | XRay | JIRA | BugZilla | Jenkins | TeamCity | GitHub Actions 🏅𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: - 𝐈𝐒𝐓𝐐𝐁-𝐂𝐓𝐅𝐋 - 𝐀𝐖𝐒 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐂𝐥𝐨𝐮𝐝 𝐏𝐫𝐚𝐜𝐭𝐢𝐭𝐢𝐨𝐧𝐞𝐫 - 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐒𝐜𝐫𝐮𝐦 𝐌𝐚𝐬𝐭𝐞𝐫 - 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐒𝐜𝐫𝐮𝐦 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐎𝐰𝐧𝐞𝐫 🚀 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: - 𝐓𝐞𝐬𝐭 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: Build robust, scalable testing architectures using Modern tools - 𝐂𝐨𝐦𝐩𝐥𝐞𝐱 𝐏𝐫𝐨𝐜𝐞𝐬𝐬 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: Streamline intricate testing workflows with all possible integrations - 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐀𝐬𝐬𝐮𝐫𝐚𝐧𝐜𝐞 𝐋𝐞𝐚𝐝𝐞𝐫𝐬𝐡𝐢𝐩: Ensure exceptional user experiences across all platforms 🎯 𝐖𝐡𝐚𝐭 𝐈 𝐎𝐟𝐟𝐞𝐫: - 𝐅𝐮𝐥𝐥-𝐂𝐲𝐜𝐥𝐞 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐀𝐬𝐬𝐮𝐫𝐚𝐧𝐜𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬: Complete E2E QA coverage from planning to post-release. - 𝐂𝐮𝐬𝐭𝐨𝐦𝐢𝐳𝐞𝐝 𝐓𝐞𝐬𝐭 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: Tailored automation frameworks for your tools and workflows - 𝐂𝐨𝐦𝐩𝐫𝐞𝐡𝐞𝐧𝐬𝐢𝐯𝐞 𝐀𝐏𝐈 𝐚𝐧𝐝 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: Thorough validation of APIs, logic, and data integration. - 𝐂𝐈/𝐂𝐃 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: Embed QA in CI/CD for faster, safer releases. - 𝐂𝐫𝐨𝐬𝐬-𝐅𝐮𝐧𝐜𝐭𝐢𝐨𝐧𝐚𝐥 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐨𝐧: Work closely with teams to ensure continuous quality. If you are looking for a QA expert who delivers high-quality, scalable testing solutions that boost development efficiency and ensure product reliability, let’s connect! I look forward to collaborating. 𝐒𝐚𝐫𝐟𝐫𝐚𝐳 𝐇𝐮𝐬𝐬𝐚𝐢𝐧

  • Mobile App Testing
  • API Testing
  • Cypress
  • Web Testing
  • Selenium
  • Automated Testing
  • Bug Reports
  • Customer Relationship Management
  • Manual Testing
  • CI/CD
  • Quality Assurance
  • Functional Testing
  • Test Design
  • Test Automation

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