Upstaff Developer Profile Directory

• Engineer with 18+ years in embedded and application development, specializing in C/C++ for RTOS, bare-metal, and Linux systems.
• Experience in low-level hardware interfacing and protocols (UART, I2C, SPI, CAN), optimizing for resource-constrained environments.
• Hands-on with STM32, Nordic nRF52, ARM SBCs, and tools like STM32CubeIDE, Visual Studio, and GNU toolchains.
• Experience across full SDLC including design, development, testing, and maintenance.
• Delivered projects in healthcare, IoT, smart devices, and multimedia using OpenCV, CUDA, Qt, Yocto, and security solutions.

• 10+ years of experience, Kubernetes (bare-metal, Rancher, OpenShift), and GitOps with ArgoCD.
• Skilled in Azure, Terraform, Ansible, and CI/CD tools (GitHub Actions, Jenkins, GitLab CI/CD).
• Experience with monitoring and observability using Prometheus, Grafana, and ELK Stack.
• Led cloud migrations with cost optimization.
• Skilled in Bash and Python scripting; experience in blockchain, e-commerce, and enterprise systems.

• Full Stack Engineer with 5+ years of experience in front-end and back-end development, specializing in React, Vue.js, Node.js (Express/NestJS), Python, GO, Rust, and Ruby.
• Proficient in modern DevOps practices including GitHub Actions, GitLab CI, Docker, Kubernetes, and cloud deployment on AWS, Vercel, and Netlify.
• Led technical teams and managed software projects, delivering AI-powered web applications like Eduflow and blockchain-based Secure-Watch.
• Strong background in software engineering education with DUT and Licence degrees, emphasizing clean, scalable code and thorough code reviews.
• Experienced in database management with PostgreSQL, and Prisma ORM, applying best practices in SDLC

• Electronics and Communication Engineering undergraduate with hands-on experience in IoT-based embedded systems and automation, demonstrated through a Smart Street Lighting project using Arduino IDE and ESP8266.
• Proficient in Java, C, Python, SQL, and Spring Framework, with practical application in developing RESTful APIs, microservices, and console-based applications.
• Experience integrating Apache Kafka with Spring Boot microservices for transaction processing, employing Spring Data JPA and REST API integration.
• Certified in software engineering simulations and data science, with a strong foundation in data structures, algorithms, and database management.

• Experienced Sales Manager with a strong background in CRM systems including Salesforce, HubSpot, Zoho CRM, and Bitrix24, demonstrating proficiency in data entry, reporting, and lead management.
• Skilled in utilizing communication and online sales tools such as Zoom, Google Meet, Microsoft Teams, and email marketing platforms like Mailchimp and Sendinblue to drive client engagement and sales growth.
• Proven track record of exceeding sales targets by 120–160% and increasing company revenue by up to 35%, showcasing strong analytical and negotiation skills.
• Expertise in task management and collaboration tools including Trello, Asana, ClickUp, and Google Docs.

• Senior JS Full-Stack Engineer with 6+ years, delivering scalable fintech, Web3, and SaaS applications.
• Expertise in designing and optimizing REST APIs, microservices, and database schemas using PostgreSQL, MongoDB, and Redis, improving response times by up to 40%.
• Proven track record in cloud-native deployments on AWS with Docker and CI/CD pipelines, achieving 95%+ automated test coverage and low defect rates.
• Strong focus on clean architecture, performance optimization, and scalable system design demonstrated through complex projects like decentralized email platforms and real-time cryptocurrency analytics.
• Applying best practices in automated testing and collaborative code reviews.

• Senior DevOps Engineer with 7+ years of experience specializing in Azure Cloud, Kubernetes, and CI/CD pipeline automation, achieving up to 70% reduction in deployment times.
• Proficient in implementing DevSecOps practices, enhancing security by resolving 80% of vulnerabilities early in the ALM process.
• Expertise in cloud infrastructure optimization using Azure Container Apps, Elastic SQL, and Kubernetes clusters, improving scalability and reducing operational costs by 35%-50%.
• Skilled in automation tools, increasing build efficiency by 30% and server provisioning by 60%.
• Strong background in software engineering with a Master’s degree in Computer Applications.

• Over 5 years of specialized experience in Salesforce Commerce Cloud (SFCC) development, including SFRA and Composable architectures, delivering scalable e-commerce solutions for global brands like Swarovski and Halfords.
• Proficient in backend development with strong expertise in Salesforce B2C PWAkit, Django, and test automation, driving efficient and maintainable codebases.
• Hands-on experience leading complex migrations and optimizing system architectures to enhance digital commerce platforms.
• Solid foundation in computer science with a Master’s degree in progress and a Bachelor’s in Software Engineering, underpinning strong software development lifecycle (SDLC) knowledge and best practices.

• Over 10 years of software engineering experience, including 4+ years specializing in scalable, high-availability SaaS services with Ruby on Rails.
• Skilled in Ruby, Rails, RSpec, REST APIs, Sidekiq, PostgreSQL, Oracle, Docker, Kubernetes, and JavaScript.
• Strong focus on performance optimization, memory management, SQL query optimization, and reliable backend architecture.
• Experienced in financial automation, billing systems, BI platforms, microservices, and legacy system integrations. Comfortable with remote collaboration, TDD, refactoring complex codebases, and maintaining backward compatibility.

• Blockchain & Full Stack Engineer with 7+ years of experience specializing in Solidity smart contract development, DeFi infrastructure, and scalable Web3 applications using Foundry, Hardhat, and OpenZeppelin.
• Proficient in frontend and backend technologies including React, React Native, TypeScript, Node.js, Ruby on Rails, and PostgreSQL, secure fintech and decentralized platforms.
• Expertise in smart contract security analysis and testing methodologies such as fuzz testing, invariant testing, and static analysis tools like Slither and Aderyn.
• Strong foundation in mathematics and computer science, supported by formal education and continuous blockchain security training.

• Senior Full Stack Engineer with 5+ years in fintech, specializing in React, Ruby on Rails, Node.js, and PostgreSQL for scalable payment and financial platforms.
• Expertise in integrating banking systems, blockchain services, Binance APIs, and building secure authentication and real-time features.
• Proficient in frontend architecture using React, TypeScript, Redux, TailwindCSS, and backend RESTful APIs with Express.js and Sequelize.
• Experienced in developing DeFi infrastructure, Web3 interfaces, and implementing robust testing workflows to enhance platform stability.

• Blockchain Engineer with 3+ years of experience in DeFi, smart contracts, and Web3 full stack development using Solidity, Foundry, React, TypeScript, wagmi, and viem.
• Skilled in secure smart contract development, fuzz testing, invariant testing, mainnet fork testing, and static analysis with Slither and Aderyn.
• Built scalable DeFi governance, vault, treasury, NFT, and subscription-based blockchain systems, plus fintech payment infrastructures integrating Binance APIs and microservices.
• Experienced with ERC20, ERC721, and ERC4626 standards, decentralized voting systems, and full stack development using Node.js, Express, React, and REST APIs.

• Senior Full Stack Engineer with 5+ years of experience specializing in fintech platforms, payment integrations, and scalable web/mobile applications using React, Ruby on Rails, Node.js, and PostgreSQL.
• Proficient in frontend architecture with React, React Native, TypeScript, and backend API development including RESTful services and blockchain integrations.
• Experienced in building secure financial systems integrating banking APIs, Binance services, and decentralized finance (DeFi) infrastructure.
• Skilled in Agile methodologies, testing workflows, and collaborative remote development within international teams.

• Blockchain & Full Stack Engineer with 4+ years of experience developing DeFi systems, smart contracts, and scalable Web3 infrastructure using Solidity, Foundry, Hardhat, and Ethereum.
• Proficient in frontend and backend technologies including React, React Native, Node.js, Ruby on Rails, TypeScript, and PostgreSQL, integrated fintech and decentralized applications.
• Expertise in smart contract security, testing methodologies (fuzz, invariant, stateful), and security tools like Slither and Aderyn, ensuring robust and secure protocol development.
• Hands-on experience building governance systems, treasury management, NFT platforms, and payment integrations with financial APIs and blockchain wallets.

• Software engineer with 17 years of experience in full-stack development, specializing in Python, Java, C#, JavaScript, and frameworks like Laravel, Django, Zend, and ASP.NET Core.
• Strong engineering foundation with multiple Bachelor degrees in Media Engineering, Civil Engineering, and Information Technology.
• Proficient in SDLC, Agile methodologies, and software development best practices, delivering scalable web, desktop, and mobile applications.
• Expertise in CMS platforms (Drupal, Joomla, WordPress, Magento) and API integration, demonstrated by developing and managing e-commerce platforms from scratch.

• Software engineer with 17 years of experience in full-stack development, specializing in Python, Java, C#, JavaScript, and frameworks like Laravel, Django, Zend, and ASP.NET Core.
• Strong engineering foundation with multiple Bachelor degrees in Media Engineering, Civil Engineering, and Information Technology.
• Proficient in SDLC, Agile methodologies, and software development best practices, delivering scalable web, desktop, and mobile applications.
• Expertise in CMS platforms (Drupal, Joomla, WordPress, Magento) and API integration, demonstrated by developing and managing e-commerce platforms from scratch.

• 13+ years of expertise in full-stack development and solution architecture, specializing in .NET Core, C#, ASP.NET MVC, and cloud platforms including Azure and AWS.
• Proven track record in modernizing legacy systems to microservices and cloud-native architectures, ensuring HIPAA-compliant deployments and scalable multi-tenant solutions.
• Strong background in database design and optimization with SQL Server and Oracle, including performance tuning and complex data integration using HL7 and API gateways.
• Hands-on experience leading agile teams, implementing CI/CD pipelines with Azure DevOps and GitHub Actions, and enforcing security best practices across the SDLC.

• Full-stack developer with 4+ years of experience specializing in Ruby on Rails, React.
• Proficient in integrating complex APIs such as Binance, Circle, and various banking services, enhancing fintech applications like VitaWallet and Rocket Exchange.
• Skilled in modern development practices including unit/integration testing (RSpec, Chai, Mocha), CI/CD with GitLab/GitHub, and Agile methodologies.
• Strong background in computer science and mathematics, complemented by teaching roles in Python, JavaScript, and blockchain programming, demonstrating deep technical expertise and leadership.

• Blockchain engineer with 3+ years in Solidity smart contract development, DeFi protocol architecture, and secure decentralized applications using Foundry, Hardhat, and Slither.
• Proficient in full stack Web3 development with React, TypeScript, wagmi, viem, and RainbowKit for seamless wallet integrations and user flows.
• Experienced in building financial and NFT platforms integrating ERC20/ERC721 standards, Chainlink oracles, and IPFS for decentralized data storage.
• Strong background in mathematics and computer science education
• Skilled in rigorous testing methodologies including fuzz, invariant, and stateful testing to ensure smart contract security and protocol reliability.

• Senior Software Developer with 10+ years of experience in full stack development, AI/LLM integration, and cloud native architectures.
• Expertise in React, Next.js, Node.js, Python, TypeScript; architected GPT-4 document intelligence platforms processing 180K+ documents with 32% improved retrieval accuracy.
• Proficient in AI workflow orchestration using LangChain, vector databases, and prompt engineering, optimizing LLM costs by 38% while ensuring 99.8% service availability.
• Strong background in scalable microservices, secure REST APIs, and cloud services (AWS Lambda, ECS, Azure).
• Computer Science degree holder skilled in Agile, SDLC, design patterns, and performance optimization.

Senior Software Engineer with 10+ years of experience building scalable full stack applications using C#, ASP.NET Core, React, Angular, TypeScript, and SQL Server in enterprise, healthcare, and cloud environments. Skilled in integrating AI features (OpenAI API, Azure OpenAI, semantic search, automation), backend services, RESTful APIs, database optimization, secure authentication (JWT, OAuth2, RBAC), and cloud-native CI/CD deployments (Azure DevOps, GitHub Actions, Docker, Kubernetes). Holds a CS degree and excels in system design, performance tuning, agile practices, code reviews, and mentoring cross-functional teams.

• 8+ years designing scalable, high-performance distributed systems using React, Next.js, Node.js, Python, and microservices architectures.
• Expertise in domain-driven design, GraphQL federation, event-driven systems, and cloud-native deployments on Azure and AWS.
• Proven leadership in frontend architecture, including micro-frontends, state orchestration, CI/CD pipelines, and observability with Sentry and Datadog.
• Strong background in secure API gateway design, OAuth2/OIDC, RBAC, and zero-trust inter-service communication.
• Bachelor of Computer Science with extensive experience in containerization (Docker, Kubernetes), infrastructure-as-code, and advanced performance optimization.

• 15+ years leading operational scaling and digital transformation in tech-driven companies, including AI-driven operational architecture.
• Expertise in workflow automation and technology integration using CRM systems like Zoho and ClickUp, reducing manual work by 40%.
• Proven track record in P&L management and financial planning, scaling startups to $2M MRR within 2 years.
• Strong background in cross-functional leadership managing teams of 10–100+, optimizing software licensing with 70% gross margin.
• Experience in project and product operations with a focus on data-driven decision-making and strategic business growth.

• Full-Stack Software Engineer with 3+ years leading end-to-end development of scalable web applications using React.js, Next.js, Node.js, and modern JavaScript (ES6+).
• Proficient in REST API design, database management (MongoDB, MySQL, PostgreSQL, Oracle), and deployment on cloud platforms like Vercel and Linux servers.
• Expertise in system design, responsive UI/UX implementation, performance optimization, and version control with Git/GitHub.
• Founder and Project Lead at a tech initiative delivering client-focused solutions, including optimized photography and portfolio websites with domain and DNS configuration.

• Proficient in Python (Django, Pandas, NumPy) and web technologies (HTML, CSS, JavaScript) with hands-on experience in full-stack development and data analysis.
• Strong background in Computer Science with ongoing postgraduate studies and practical experience in software development methodologies and SDLC.
• Expertise in data processing and automation using Excel Power Query, n8n workflows, and API integrations, improving data accuracy by 20% and reducing reporting time by 30%.
• Skilled in database management with SQL, MongoDB, and ERP systems, supporting optimized business decisions through actionable insights.

• Backend Developer with 2+ years of experience specializing in PHP and Laravel for scalable web applications and backend services.
• Proficient in designing and integrating RESTful APIs, asynchronous processing with AWS SQS, and managing large datasets using MongoDB, DynamoDB, and MySQL.
• Skilled in cloud-based infrastructure and workflows leveraging AWS services to enhance platform stability and performance.
• Experienced in Agile and Scrum methodologies, supporting production deployments, release validation, and continuous system improvements.
• Holds a Bachelor’s Degree in Computer Systems Engineering, combining strong engineering fundamentals with practical software development expertise.

I reduced API response time by 75 percent from 1.2 seconds to 0.3 seconds using FastAPI and Redis caching. I built a payment system handling over 2 million monthly requests with zero downtime for twelve consecutive months. I migrated a fifteen-year-old MFC legacy system to modern C Sharp and .NET, cutting maintenance costs by 60 percent and tripling data processing speed. I also developed cross-platform desktop applications using Qt framework that reached over 10,000 downloads across Windows, macOS, and Linux.

I reduced API response time by 75 percent from 1.2 seconds to 0.3 seconds using FastAPI and Redis caching. I built a payment system handling over 2 million monthly requests with zero downtime for twelve consecutive months. I migrated a fifteen-year-old MFC legacy system to modern C Sharp and .NET, cutting maintenance costs by 60 percent and tripling data processing speed. I also developed cross-platform desktop applications using Qt framework that reached over 10,000 downloads across Windows, macOS, and Linux.

• 6+ years of experience delivering scalable web and cross-platform mobile applications using Vue.js, React, TypeScript, Node.js, and Spring Boot across EU and US markets.
• Proven expertise in modern front-end frameworks (Vue, Nuxt, React) and back-end microservices architecture, with strong skills in event-driven systems and RESTful API design.
• Led migration projects improving platform performance by 30-40%, including decoupling legacy systems and transitioning from Vue to React for SaaS platforms.
• Hands-on experience with testing frameworks (Jest, Vitest, Playwright), CI/CD pipelines on Azure and AWS, and component-driven development using Storybook.

• Over 8 years of professional experience with a strong foundation in Computer Science (HND and ND) and expertise in data analysis using Excel.
• Proficient in software development lifecycle (SDLC) practices, data entry, and digital tools to optimize operational workflows and reporting.
• Skilled in CRM and database management, task coordination, and automation of administrative processes, enhancing productivity and reducing costs by 25%.
• Experienced in technical documentation, online research, and performance reporting, supporting decision-making and project execution.
• Certified in Virtual Assistance, demonstrating a multidisciplinary approach to technology and client-focused solutions.

• 15+ years in IT infrastructure; last 5+ focused on Azure hybrid cloud, Microsoft security, and identity management;
• Active Directory expertise including domain management, GPO design, and hybrid identity integration with Entra ID;
• Experience across Azure, VMware, and Citrix in a US-based datacenter environment; Intune built from scratch (Autopilot, endpoint security), Microsoft 365 administration, and automation using PowerShell and Microsoft Graph API;
• ISO 27001 compliance experience;
• Certifications: AZ-900, Sophos, Veeam, GCP Baseline Infrastructure.

• Senior Frontend Engineer with 9+ years of expertise in React, TypeScript, Next.js, and scalable frontend architectures including Feature-Sliced Design and SSR/SSG/ISR.
• Fintech, CRM, AI dashboards, optimizing performance and improving key business metrics.
• Strong skills in state management (Zustand, Redux, RTK Query), design systems (Material UI, AntD, shadcn/ui), and modern tooling (Vite, Webpack, Docker, CI/CD).
• Experienced in complex domain-driven UI systems, dynamic forms with typed validation, and multi-channel notification workflows, delivering maintainable and scalable solutions.
• Adept in Agile/Scrum methodologies, cross-functional collaboration, and mentoring within distributed teams.