Upstaff Developer Profile Directory

• Engineer with 5+ years in frontend development, specializing in AI-powered web applications, LLM integrations, and MCP-based workflows.
• Expertise in TypeScript, React, and backend technologies including Node.js, NestJS, REST, and GraphQL APIs.
• Designed and led frontend architecture for complex financial platforms, implementing real-time analytics, multi-provider authentication, and third-party integrations.
• Proficient in AI tooling such as Claude Agent SDK, OpenAI API, and prompt engineering, delivering AI-enhanced automation and intelligent features.

Experienced in Agile methodologies, scalable component systems, performance optimization, and cross-functional collaboration in fintech, Web3 ect.

• Over 5 years of experience in front-end and full-stack development with deep expertise in Angular (2-21), NgRx, RxJS, and state management for scalable web applications.
• Proficient in modern JavaScript/TypeScript frameworks (React, Redux, Node.js, Nest.js), hands-on experience building complex applications integrating blockchain (Terra.js) and 3D visualizations (Three.js).
• Skilled in RESTful and GraphQL API design, MongoDB, PostgreSQL, and CI/CD pipelines using Jenkins and Bitbucket.
• Delivered high-impact projects such as insurance web tools, crypto exchange platforms, and real-time chat apps, demonstrating strong architectural design, custom authentication, and performance optimization.

• Senior Web Designer with 15+ years in front-end development, specializing in HTML5, Bootstrap 4&5, CSS/SCSS, Angular Material Design, React.js, WordPress, and Shopify development.
• Proven expertise in full HTML development lifecycle for dynamic web projects, integrating responsive design and UI/UX best practices.
• Skilled in design tools including Photoshop, Adobe XD, Figma, and Adobe Illustrator, enhancing creative and technical project delivery.
• Strong background in project management and client relations, delivering high-impact web solutions for diverse industries.
• Experience with version control (GitHub) and modern web frameworks, ensuring maintainable and scalable codebases.

• DevOps Engineer with over 7 years of experience designing and automating scalable cloud infrastructures across AWS, Azure, and GCP, achieving up to 15% cost savings and deployment time reductions.
• Proficient in CI/CD pipeline development using GitHub Actions, Jenkins, ArgoCD, and Flux, enhancing deployment frequency and reliability by 10-15%.
• Expertise in container orchestration and microservices using Kubernetes, Docker, ensuring high availability and fault tolerance with 99.9% uptime.
• Strong background in database optimization, monitoring, and incident management, improving system stability and reducing resolution times by 15%.

• Over 5 years of experience in Software Engineering in Test with expertise in Java, Python, Selenium WebDriver, TestNG, Cucumber BDD, and RestAssured for API and UI automation.
• Proven track record in reducing test cycles by 26%, automating 850+ test cases, and enhancing test stability and execution efficiency using Page Object Model and explicit waits.
• Skilled in building data-driven frameworks, integrating CI/CD pipelines with Jenkins, Maven, Git, and cross-browser testing via SauceLabs.
• Experienced in Agile SCRUM methodologies, driving sprint deliveries, and fostering collaboration across QA, development, and product teams to optimize quality metrics and defect management.

• DevOps Engineer with 6+ years of expertise in automating and scaling AWS cloud infrastructure, reducing costs by 50% and accelerating deployments by 80%.
• Proficient in Terraform, Kubernetes (CKA certified), Jenkins, GitLab CI, and Python scripting, with strong IaC and CI/CD pipeline development skills.
• Led zero-downtime migration of 700+ AWS resources and architected fault-tolerant, auto-scaling distributed systems handling 3M+ data entries.
• Holds a BSc in Computer Science and multiple certifications including AWS Solutions Architect Professional and Certified Kubernetes Administrator.

• Frontend Software Engineer with 3+ years of experience specializing in React.js, Next.js, and modern JavaScript (ES6+), delivering scalable, high-performance web applications.
• Proven expertise in AI integration, including LLM API (Google Gemini, OpenAI) and chatbot development, demonstrated through leading AI-driven SaaS platforms like Cheaper.com.
• Strong background in full SDLC, API orchestration (REST, GraphQL), and performance optimization, achieving up to 35% load speed improvements and 90+ Lighthouse scores.
• Computer Science degree holder with hands-on experience in backend technologies (Node.js, Django REST), database management (PostgreSQL, MySQL), and CI/CD pipelines (GitHub Actions).

• Full Stack Developer with 4+ years of experience architecting scalable web applications using React.js, Next.js, Node.js, and Python frameworks (FastAPI, Django), specializing in AI integration and cloud-native solutions.
• Proficient in designing and optimizing RESTful and GraphQL APIs, microservices, and serverless architectures with expertise in PostgreSQL, MongoDB, Redis, and vector databases (Pinecone, Weaviate).
• Skilled in DevOps practices including CI/CD pipelines, Docker, Kubernetes, AWS services, and automated testing (Jest, Cypress, Playwright) to ensure robust, secure deployments.

Proficient in backend and full-stack development using Python, Go, Java, TypeScript, and PostgreSQL, with hands-on experience building high-throughput API gateways and event-driven microservices.

• Over 20 years of experience architecting scalable software solutions using Java, Kotlin, Spring Boot, and AWS, with a strong focus on migrating legacy monoliths to microservices and SaaS platforms.
• Proven expertise in designing and implementing CI/CD pipelines, automated testing, and operational observability
• Skilled in Agile methodologies, servant leadership, and cross-functional team mentoring
• Author of technical publications on JVM performance, software quality attributes, and engineering team leadership
• Holds M.Sc. and B.Sc. degrees in Computer Science, knowledge of cloud AWS, Kubernetes, Docker, and data stores including PostgreSQL and Elasticsearch.

• 24 years of expertise in full-stack development and enterprise architecture, specializing in Java, SpringBoot, Angular, and microservices.
• Architected high-performance systems including SOLR-based enterprise search
• Proficient in blockchain development with Rust/TypeScript for Solana, building high-frequency trading bots and automation tools.
• Skilled in containerization, Kubernetes orchestration, and CI/CD pipelines with Jenkins and Docker to enhance deployment reliability.
• Experienced in designing scalable cloud-native architectures integrating OAuth2, Keycloak, and advanced middleware for secure authentication and seamless system integration.

• Experienced in Identity and Access Management with hands-on expertise in Cyberark, Active Directory, and Mainframe systems.
• Proficient in Windows and Linux administration, SQL, Oracle, and ServiceNow platform, supporting incident and request management adhering to SLA.
• Engineering background with a B.Tech in Electronics and Communication Engineering, skilled in user provisioning and access control aligned with organizational roles.
• Demonstrated ability in technical issue resolution and process improvement within IT service management frameworks.
• Project experience includes MR image classification using AdaBoost, showcasing applied knowledge in machine learning techniques.

• Frontend Developer with 1+ year of experience building SaaS platforms and dashboards using React, Next.js, TypeScript, and Tailwind CSS.
• Skilled in designing PostgreSQL schemas and REST APIs with FastAPI and Prisma ORM, enabling full-stack feature delivery.
• Implemented advanced state management using React Query, Zustand, and Redux Toolkit to optimize data flow and UI responsiveness.
• Developed secure authentication systems with NextAuth.js, including OAuth, email verification, and protected routes.
• Experienced in microservices architecture, real-time data pipelines, and cloud storage integration, demonstrated in projects using Kafka, Docker, and Google Cloud Storage.

AI/ML & MLOps Engineer with 4+ years of experience designing and deploying scalable, production-grade machine learning systems. Expert in Python, PyTorch, TensorFlow, AWS, MLflow, Hugging Face, and Neo4j graph modeling. Strong background in ETL pipelines, NLP, Computer Vision, OCR, and multi-agent architectures using LLMs and LangChain.

Led 50+ remote projects delivering advanced analytics dashboards and graph-powered solutions. Proficient in DevOps methodologies, CI/CD pipelines, and Docker containerization to ensure robust software development lifecycles.

• 5+ years in customer service and administration with hands-on experience in digital communication tools and CRM systems like Gorgias and Shopify.
• Proficient in data management, order tracking, and issue resolution using platforms such as ShipHero and Shopify,
• Experience collaborating in UI/UX design projects, applying user research and feedback to enhance digital product usability and customer engagement.
• Skilled in Microsoft Office, Google Workspace, and CRM software, supporting efficient administrative and procurement operations.
• Strong background in coordinating digital communications and managing online community engagement, leveraging technical tools to optimize customer satisfaction.

• Over 5 years of experience in customer service and digital communication, with hands-on involvement in UI/UX design and online community coordination.
• Proficient in CRM tools like Gorgias and Shopify, with practical skills in managing order tracking systems such as ShipHero.
• Skilled in user research and interface design, contributing to enhanced customer engagement and experience improvements.
• Strong background in administrative and procurement processes, supporting operational efficiency and vendor management.
• Certified in UI/UX Design and Customer Relationship Management, leveraging multidisciplinary expertise to bridge technical and customer-focused solutions.

• Experienced MERN Stack Developer with 7+ years in designing and implementing scalable RESTful APIs, secure authentication systems (JWT, OAuth), and real-time features using Socket.io.
• Proficient in MongoDB schema optimization, query tuning, and building multi-vendor SaaS platforms, LMS, and AI-integrated applications.
• Skilled in full SDLC, agile methodologies, CI/CD pipelines, Docker, and cloud deployments (AWS EC2, S3, Lambda) ensuring high availability and performance.
• Strong expertise in frontend technologies including React.js, Redux, Context API, and responsive design frameworks like Tailwind and Bootstrap.
• Demonstrated ability to integrate third-party payment gateways and external APIs.

• Senior Full Stack Engineer with 12+ years of experience, including 8+ years with Node.js, TypeScript, and Vue.js (Tailwind CSS)
• Specialized in microservices (NestJS), event-driven systems (Kafka, RabbitMQ), and configurable enterprise SaaS platforms
• Ensured production reliability with on-call support for high-load systems
• Skilled AWS (Lambda, VPC), Terraform, Docker, CI/CD expertise
• Experience in enterprise (healthcare) and startups (Y Combinator-level, Sixa)
• Focused on AI-driven SaaS, open to long-term collaboration; builds trading bots

• Principal-level Security Architect with 15+ years engineering enterprise-scale Microsoft security solutions across Azure and hybrid environments.
• Expertise in Microsoft Sentinel, Defender Suite, Entra ID, Azure Policy, and Infrastructure-as-Code (Bicep, ARM, YAML) integrated into CI/CD pipelines.
• Experienced in architecting Zero Trust solutions, automating security operations, and enforcing compliance with NZISM, NIST, and CIS frameworks.
• Background in security automation using PowerShell, Azure DevOps, and Azure Functions, enhancing threat detection and incident response.
• Skills in cloud security, identity management, network security, and vulnerability management.

• 7+ years of experience, specializing in full-stack development with React, Vue, Next.js, Node.js, NestJS, and TypeScript.
• Expertise in architecting dashboards, multi-currency payment forms, and microservices using Prisma, PostgreSQL, and MongoDB.
• Skilled in state management (Zustand, Redux, TanStack Query), real-time data handling (Socket.io, WebSockets), and performance optimization (Redis caching, code splitting).
• Background in test-driven development with Jest, React Testing Library, and Cypress, plus containerization and AWS deployment.
• Skilled in designing role-based access systems and integrating OAuth 2.0, JWT, and complex API workflows in distributed architectures.

• Full Stack Engineer with 20+ years of experience in scalable web platforms, specializing in React, TypeScript, Node.js, and cloud-native architectures (AWS, GCP, Azure).
• Expertise in designing modular frontend architectures, reusable component libraries, and backend microservices with performance optimization and high-load scalability.
• Experience integrating AI-assisted development workflows using LLM APIs and agentic coding tools.
• Background in system design, distributed systems, event-driven architecture, and secure financial/payment processing platforms with multi-provider integrations.
• Knowledge of SDLC, CI/CD automation, DevOps practices, and engineering leadership in Agile environments.

• Infrastructure Engineer with 8+ years managing Windows Server, Linux, VMware, and cloud platforms (AWS, GCP), specializing in automation and disaster recovery.
• Deploying bulk configurations across 6,000+ endpoints, and leading zero-downtime cloud migrations.
• Proven leadership in cross-functional teams, directing multi-project lifecycles and integrating complex systems like PMS and POS in hospitality.
• Skilled in Active Directory, Microsoft 365 Azure AD, virtualization, backup solutions, and network security including IDS and firewall deployment.
• Certified in Microsoft Azure, CISSP, EC-Council, and IBM DevOps, with strong experience in SQL databases, Atlassian tools, and agile methodologies.

• Full Stack Engineer with 10+ years of experience delivering scalable SaaS platforms and cloud-native systems using React, TypeScript, Python, FastAPI, Django, Node.js, PostgreSQL, Redis, and AWS.
• Proven expertise in legacy system modernization, reducing API response times from 3s to under 1.8s by migrating C#/.NET services to modern microservices architectures.
• Strong background in system design, distributed systems, event-driven workflows with Kafka, Celery, and Redis, improving performance and reducing blocked API requests by 40%.
• Skilled in cross-platform development with React Native and Expo, cutting duplicated implementation by 25% while maintaining consistent UX across web and mobile.

Senior Front-End Developer (React Native mobile / React web) with 10+ years of experience. Skilled at JavaScript, TypeScript, and React. I’ve worked on various projects and have extensive expertise. I have experience developing projects from scratch through to market release.

• Over 20 years of experience in IT infrastructure engineering, specializing in Microsoft
• Proven expertise in managing large-scale infrastructure projects supporting, including cross-domain migrations and modernization initiatives.
• Microsoft Azure and Microsoft 365 certified professional with advanced skills in Azure Solutions Architecture, Identity and Access Management, and Endpoint Administration.
• Strong background in scripting and automation, delivering multi-level PowerShell solutions to optimize administrative processes and enhance system reliability.

• Backend engineer with expertise in NestJS, Node.js, and TypeScript, specializing in building secure, scalable REST APIs and auth systems
• Proven experience in Web3 integrations, smart contract auditing on Celo, and blockchain technologies including Solana, Farcaster SDK
• Skilled in container orchestration and infrastructure automation using Docker SDK, docker compose, and Caddy for zero-downtime deployments.
• Developed AI-powered platforms leveraging Google Gemini and Elasticsearch for real-time payment reconciliation and natural language query parsing into SQL.
• Strong focus on clean architecture, security best practices, and system design demonstrated through multiple end-to-end projects.

Software Developer with over 5 years of experience building scalable APIs and full-stack web applications using .NET Core and React.js. Experienced in designing efficient database solutions with MySQL and SQL Server, integrating third-party systems, and optimizing application performance. Proven track record of delivering production-ready systems for small to medium-sized businesses, with a strong emphasis on clean architecture, maintainable code, and business-driven solutions. Comfortable working in distributed teams using Git-based workflows.

• Over 6 years of experience in customer service and team leadership roles, demonstrating strong problem-solving and multitasking abilities.
• Proficient in CRM systems and data management, ensuring accurate and efficient handling of customer accounts and information.
• Skilled in training and supervising teams, with a focus on performance optimization and adherence to company standards.
• Experienced in managing complex workflows and improving service delivery processes in fast-paced environments.
• Background in mathematics and wellness studies, providing a foundation for analytical thinking and attention to detail.

• 18+ years in software engineering with expertise in C++, Qt/QML, Python, Django, Node.js, React, and AI integration using OpenAI APIs.
• Proven track record in building end-to-end production software including embedded automotive HMI, multi-tenant SaaS platforms, and AI-driven web applications.
• Led design and development of complex systems such as multi-app payroll/HRMS platforms, AI-powered recruitment automation, and supply-chain optimization backends.
• Strong background in database management (PostgreSQL, MySQL, SQL Server), cloud infrastructure (Docker, GCP Cloud Run), and REST API design.

• 18+ years in software engineering with expertise in C++, Qt/QML, Python, Django, Node.js, React, and AI integration using OpenAI APIs.
• Proven track record in building end-to-end production software including embedded automotive HMI, multi-tenant SaaS platforms, and AI-driven web applications.
• Led design and development of complex systems such as multi-app payroll/HRMS platforms, AI-powered recruitment automation, and supply-chain optimization backends.
• Strong background in database management (PostgreSQL, MySQL, SQL Server), cloud infrastructure (Docker, GCP Cloud Run), and REST API design.

• Over 4 years of experience in 1 outsourcing and 1 outstaffing company.
• For the last 3 years, I have been working on:
• updating legacy code to smth normal and usable (PHP/Laravel + Angular)
• adding new features to both app/api of e-commerce project (PHP/Laravel + Angular)
• creating a new project from scratch (Python/FastAPI + Angular)
• adding new features to the dating project (Python/FastAPI + Angular)

• 7+ years of experience in Cloud and Infrastructure Engineering with expertise in Microsoft Azure, Azure DevOps, Docker, and CI/CD pipelines.
• Experienced in Azure cost optimization achieving ~40% reduction through VM/disk rightsizing and automated scheduling.
• Skilled in infrastructure automation, server configuration, and secure data encryption across 500+ user PCs.
• Background in IT operations, incident management, and lifecycle management using ServiceNow and ticketing systems.
• Experience with Windows, Linux, Active Directory, PowerShell/Bash scripting, and cloud-native deployment methodologies.