Upstaff Developer Profile Directory
- Dedicated Full-time commitment for long-term or Time& Material for shorter or ongoing support
- Europe, Israel, LatAm, United States, Asia geography coverage
- Remote and hybrid engagement
- Trial period, no termination fees or hidden costs for transparent and risk-free onboarding.
- Senior Data Engineer with 5+ years designing scalable lakehouse architectures and distributed data pipelines using Databricks, Snowflake (Snowpark), PySpark, Kafka, and Airflow across healthcare, life sciences, and finance domains.
- Expertise in building AI/ML-ready feature engineering pipelines, embedding datasets, and integrating ML workflows with MLflow and Databricks Feature Store for clinical risk modeling and forecasting.
- Proficient in cloud platforms AWS, Azure, and GCP, implementing CI/CD, Terraform IaC, and DataOps frameworks ensuring HIPAA-compliant governance and 99.5% SLA data freshness.
- Strong background in performance optimization, including Snowflake query tuning (28% improvement), Spark resource tuning (18% cost reduction), and streaming ingestion reducing latency by 45%.
- Master of Science in Computer Science with hands-on experience in REST API development (FastAPI), containerization (Docker, Kubernetes), and modular data contracts using dbt, enabling robust, scalable data engineering solutions.
- 9+ years of experience in full-stack roles with JS and TypeScript (Node.js, NestJS, React, React Native).
- Israeli fintech, telecom, and gambling solutions, including high-performance systems handling 10,000+ daily transactions, integrating multiple payment providers, including banking APIs and cryptocurrency.
- Holds a Bachelor’s degree in Theoretical and Nuclear Physics, combining analytical rigor with advanced skills in AWS, Docker, GraphQL, SQL/NoSQL databases, and UI frameworks like Ant Design and MUI.
- Background in software engineering principles, OOP & functional programming, and modern SDLC practices, including Agile, CI/CD, and test automation with Cypress and Jest.
Backend Engineer, 8+ years of hands-on experience architecting production-grade Python systems — primarily with FastAPI, microservices, and cloud-native infrastructure. Specializes in building reliable APIs (REST + GraphQL via AWS AppSync), high-performance data layers, real-time features (WebSocket), and secure, observable platforms that power AI-driven SaaS, FinTech/loan management, personalized education, and meditation applications.
- Robust, versioned APIs with pagination, filtering, bulk operations, and real-time capabilities for enterprise standards.
- Security models using JWT, OAuth2, Cognito/Firebase Auth, and OWASP plus secrets management in AWS.
- PostgreSQL/SQLAlchemy setups with strict validation, indexing, query tuning, migrations (Alembic), and entity versioning (Continuum).
- Integrations & background jobs (Celery/AWS Lambda), idempotent processing, retries, and Stripe/Telegram/webhook handling.
- End-to-end CI/CD with GitHub Actions, Docker, Kubernetes, ECS, ArgoCD for zero-downtime rollouts and automated testing.
- Full observability stacks (Prometheus + Grafana, CloudWatch) with alerts, dashboards, and runbooks for proactive monitoring.
- Comprehensive operational documentation, team training, and code reviews as a Team Lead managing up to 8 engineers.
Optimized high-load endpoints, reduced latency through caching/profiling, enforced business rules at the DB level, and led refactorings and migrations. Passionate about clean architecture, maintainability, and turning complex business needs into elegant, scalable solutions.
Senior DevOps / SRE Engineer with 6+ years of hands-on AWS and GCP (including GKE and EKS):
- Strong production operations background with backend stacks (PHP, Node.js, Java, .NET), messaging queues (ArtemisMQ), relational/NoSQL databases (PostgreSQL, MySQL, MongoDB, Redis), and full SRE practices.
- Previously led a 7-engineer DevOps team, mentored engineers, and drove infrastructure modernization with a focus on reliability, velocity, and operational excellence.
- Specialized in Kubernetes container orchestration, Terraform Infrastructure as Code, advanced CI/CD pipelines (GitLab CI, Jenkins, Bamboo, Bitbucket CI, Azure DevOps), and comprehensive observability stacks (Prometheus, Grafana, Loki, ELK, Zabbix, New Relic, CloudWatch) to enable proactive monitoring, alerting, and incident resolution.
Delivered measurable impact:
- Successful legacy-to-Kubernetes migrations, high-availability architectures with load balancing (HAProxy, Nginx),
- cost/performance optimizations, 60% reduction in deployment times
- Hybrid/multi-cloud integrations (AWS + GCP + VMware/Hyper-V) across fintech, banking, e-commerce, and high-traffic environments.
- 5+ years of expertise in React Native development, specializing in cross-platform UI architecture, Redux state management, and native module integration.
- Proven leadership in managing complex projects, including award-winning apps, with strong skills in asynchronous workflows using Redux Saga and real-time data sync via Firestore.
- Skilled in integrating payment systems (Stripe, PayPal, RazorPay), location services, push notifications, and offline data persistence using SQLite, Realm, and AsyncStorage.
- Experienced in building user-centric solutions for diverse domains such as crisis communication, legal reference, and sports coaching, leveraging Context API, full-text search, and analytics dashboards.
- Holds a Bachelor in Computer Engineering, proficient in JavaScript, TypeScript, and modern development tools (VS Code, Android Studio, XCode) across MacOS, Windows, and Linux environments.
- Over 5 years of experience architecting and deploying scalable cloud-native applications across AWS, Azure, and GCP, managing 50+ AWS projects with 35% cost reduction through resource optimization.
- Expertise in infrastructure automation using Terraform, Ansible, and CI/CD pipelines with Jenkins, GitLab, and GitHub Actions, achieving 60% deployment time reduction.
- Advanced containerization and orchestration skills with Docker, Kubernetes, ECS, and Fargate, delivering 90%+ uptime in microservices architectures.
- Proficient in scripting (Shell, Bash, Python), database management (MySQL, PostgreSQL, MongoDB), and monitoring tools (CloudWatch, CloudTrail) for robust system observability.
- AWS Certified Solution Architect with proven success in designing secure, cost-effective distributed systems and real-time data processing platforms for IoT and telemetry applications.
- Full-stack engineer with 6+ years of expertise in TypeScript, React, React Native, Node.js, and .NET Core, delivering scalable B2B and healthcare applications with 40% latency reduction through query optimization.
- Proficient in integrating analytics SDKs (Mixpanel, Firebase, AdMob) and implementing secure JWT authentication and role-based access control in cross-platform mobile apps.
- Experienced in CI/CD pipelines using GitLab CI/CD, automated testing (Jest, Cypress), and cloud deployments on AWS and Docker, enabling rapid iterative releases and A/B testing.
- Strong background in SQL databases (PostgreSQL, MySQL, SQL Server) with advanced query optimization for analytics-driven growth metrics.
- Holds an MSc in Computer Science and IT, skilled in modular architecture, feature flags, and AI-augmented development to accelerate coding and improve UX flows.
- Full-stack JavaScript developer with 3+ years of experience specializing in Angular (v2+), NestJS, and TypeScript for scalable, high-performance web applications.
- Proficient in integrating REST and GraphQL APIs, implementing OAuth, SMS OTP, and magic link authentication workflows using Supabase and JWT.
- Skilled in advanced state management with NgRx, reactive forms with RxJS, and custom UI development using Angular Material, PrimeNG, Taiga UI, and Tailwind CSS.
- Experienced in low-code platforms (Appian), CI/CD pipelines, automated testing, and performance optimization leveraging Google Lighthouse and Core Web Vitals.
- Strong background in data normalization, modular architecture, microservices, and secure coding practices including RBAC, bcrypt encryption, and audit trails.
- Full Stack Engineer with 6+ years of experience architecting scalable web applications and microservices using Node.js (Express) and Laravel, delivering production-grade solutions for UK startups.
- Expertise in AI-powered automation workflows (n8n, LLM APIs, MCP) and event-driven backends, achieving 50% reduction in document processing time and enhanced cross-team visibility.
- Proficient in Python scripting for automation, and skilled in databases including MySQL, PostgreSQL, MongoDB, and Neo4j, with hands-on AWS and Docker deployment experience.
- Strong advocate of TDD, Clean Architecture, OOP design patterns, and modular monoliths, improving code reliability by 60% and system maintainability.
- Holds a Master’s degree in Software Engineering and fluent in Arabic, French, and English, with proven leadership in remote, distributed agile teams.
I am a Senior Full Stack Developer with over 10 years of extensive and deep experience designing, developing, and deploying high-performance web applications and enterprise-level platforms. My expertise spans the entire technology stack, allowing me to deliver robust, scalable, and maintainable solutions from concept to production.
- Full-Stack Engineer with 10 years of experience building and scaling web and SaaS products across fintech, edtech, martech, crypto, energy, and AI-driven domains.
- Skilled in JavaScript, TypeScript, and Python, with hands-on experience in frontend development using React, Next.js, and Vue.js, and backend development with Node.js, NestJS, Express, and Python-based frameworks.
- Designed and implemented system architectures for complex platforms, including distributed systems, microservices, real-time applications, and API-driven products with PostgreSQL, MongoDB, Redis, ClickHouse, and Elasticsearch.
- Led full-cycle development of high-load platforms such as crypto trading systems, communication automation tools, educational video platforms, and SaaS products, from requirements and architecture to production launch and scaling.
- Integrated AI and machine learning components into production systems using OpenAI APIs, LangChain, FAISS, PyTorch, and other AI tooling for personalization, automation, and content generation.
- Built and maintained infrastructure using Docker, Kubernetes, Terraform, and CI/CD pipelines, working extensively with AWS and Google Cloud environments.
- Experienced in technical leadership, including frontend architecture ownership, mentoring engineers, hiring, and organizing engineering teams across multiple projects.
Experienced CRM Developer with over 4 years of hands-on experience in designing, developing, and maintaining enterprise-grade Microsoft Dynamics 365 and Power Platform solutions. Skilled in building and customizing CRM systems, Power Apps, automation workflows, and integration layers to support business process optimization across various industries, including financial services, real estate, healthcare, and manufacturing.
Expertise in C#, .NET Core, ASP.NET MVC, Power Apps, Power Automate, and Dataverse, with proven experience developing custom plugins, integrations, and REST APIs for Dynamics 365. Extensive background in Azure DevOps for CI/CD automation, Azure App Services for cloud hosting, and Azure SQL Database for scalable data management.
Key achievements include:
- Developed custom C# plugins and Power Automate workflows extending Dynamics 365 functionality
- Built enterprise CRM platform with Azure App Services and microservices architecture
- Delivered Power Portal with integrated Power BI analytics for tracking ultrasound machine usage
- Implemented automated notification system using Power Automate reducing manual follow-up
- Implemented SonarCloud quality gates and Azure DevOps CI/CD pipelines
- Achieved GDPR compliance and data security standards for financial services
Software Engineer with 5+ years of experience delivering enterprise solutions within the IT industry, with a strong focus on Microsoft Dynamics 365 and the Power Platform.
Experienced in designing, customizing, and maintaining CRM systems, building Power Apps, implementing automation workflows, and developing integration components that support business process efficiency.
Technical background in C#, JavaScript, Azure, SharePoint, and the Microsoft cloud ecosystem. Comfortable working independently on complex tasks as well as collaborating within cross-functional teams to deliver scalable, reliable solutions aligned with business goals.
Key achievements include:
- Delivered Microsoft Dynamics 365 CRM customizations across multiple enterprise projects
- Created automated Azure CI/CD deployment script reducing SharePoint site deployment time
- Developed custom Power Apps applications and Power Automate workflows for business process automation
- Built Azure Functions and Web API integrations extending CRM platform capabilities
- Implemented automated testing solutions using Playwright for reliable CRM deployments
Integrated third-party services and developed custom plugins, workflows, and scripts
Software Engineer with expertise in competitive programming, solving 1000+ problems on LeetCode/Codeforce, and demonstrated experience in architecting full-stack applications. Proficient in backend development with Python and Node.js, also skilled in mobile app development using Flutter. Track record includes developing high-performance RESTful APIs that handle 50K+ daily requests and implementing scalable FastAPI backends. Bachelor of Science in progress with a focus on software architecture, AI/ML systems from Adama Science and Technology University. Achievements include ranking 8th in ETCPC National Finals among 200+ teams and excelling in core programming languages and software development methodologies.
Full-Stack Engineer with 5 years of experience building end-to-end web applications, distributed systems, and modern frontend experiences. Deep expertise in TypeScript, Next.js, Node.js, PostgreSQL, and cloud-native architectures.
Known for shipping high-quality features fast, owning projects from concept to production, and collaborating effectively in remote, async teams. Comfortable with modern tooling, AI-assisted development workflows, and architecting reliable, scalable solutions used by thousands of users.
Accomplished software engineer with a demonstrated history of working in the information technology and services industry. Skilled in building scalable React applications, with a strong emphasis on front-end development and user experience. An effective leader with experience as a Senior React Developer and Front-end Lead, focusing on defining problems, clarifying specifications, and taking full ownership of projects. Successfully transitioned from earlier sales and operations roles to full-stack development, showcasing versatility and a continuous learning mindset. Education includes a Bachelor of Science in Information Technology with high accolades. Technically proficient in React, TypeScript, Next.js, and modern development tools, with a solid foundation in software development practices.