Hire the Best JUnit Specialists in California

As a seasoned software engineer with over 20 years of experience, I specialize in Full Stack and Backend Development, AI/ML Engineering, and DevOps Engineering. I have led teams at top-tier companies like Toyota, Hera Systems, and Cisco, developing cutting-edge software solutions and complex systems. My expertise spans creating AI-powered applications, building scalable cloud architectures, and automating software delivery pipelines to improve efficiency. I'm passionate about solving complex problems using machine learning, AI agents, and automation technologies. Whether you're looking for high-performance backend systems, intelligent data solutions, or seamless DevOps integration, I bring a results-driven approach with a focus on quality and innovation.

Experienced full stack .net developer ready to build quality applications. I have worked for the smallest to the biggest companies and will put all I have learned to work for you.

💡 About Me 12+ years of building fast, scalable data systems that drive results. At Uber Eats, I led 300+ Airflow/DBT pipelines powering $12B in delivery revenue. I’ve handled multi-cloud migrations (AWS ↔ GCP), real-time data ingestion, and AI-enhanced workflows for startups and enterprise clients. If you need clean data, reliable pipelines, and cloud infrastructure that scales—I'm your guy. 🔧 What I Do Best ETL & Data Pipelines: Built and maintained high-volume pipelines using DBT, Airflow, Glue, Redshift, BigQuery, Snowflake. API & System Integration: Delivered secure REST integrations (Syndigo, Salesforce, custom partners) for catalog and product data. Cloud & Infra: Architected production systems across AWS, GCP, Azure using Docker, Kubernetes, Terraform. AI Enhancements: Integrated OpenAI & Claude into workflows for smart automation, chat assistants, and AI-powered ETL. 🚀 Proven Results Boosted Uber Eats sales by 20% through enriched, clean data pipelines. Cut system latency by 30% for AI-based financial tools at Flarze. Drove 2x SQL performance via SparkSQL & PySpark tuning at Workday. Migrated petabyte-scale data systems (Snowflake → GCP) on schedule and budget. ✅ Why Hire Me Business-first thinker who speaks both data and strategy. Proven at enterprise scale, agile at startup speed. Deep cloud + AI integration experience. Reliable, responsive, and results-obsessed. Keywords: ETL, Airflow, DBT, Redshift, BigQuery, Glue, Snowflake, REST APIs, AWS, GCP, AI Integration, OpenAI, Prompt Engineering, Scalable Data Systems, Cloud Automation, Data Quality, Python, PySpark, Terraform, Docker, LLMs

I am a Backend Engineer specializing in Java and Kotlin, combined with Cloud and Infrastructure expertise, helping businesses build reliable, scalable, and production-ready backend systems. I don’t just write backend code—I design systems that run smoothly in real cloud environments. From API development to deployment and operational stability, I ensure that backend services are built with performance, scalability, and long-term maintenance in mind. This allows clients to reduce technical risk while accelerating delivery. With hands-on experience across backend development and cloud infrastructure, I act as a bridge between development and operations, making sure applications are not only functional, but truly production-ready. What I Can Help You With - Backend API development using Java & Kotlin - Cloud-based service architecture and deployment - Designing scalable, maintainable backend systems - Improving performance, stability, and deployment workflows - Supporting existing systems and modernizing legacy backends Core Technology Stack Backend & Language - Java (Spring, Spring Boot) - Kotlin (Spring Boot, Kotlin-based backend services) - RESTful API design - Clean Architecture & layered design Database & Data Handling - PostgreSQL / MySQL - JPA / Hibernate / MyBatis - Transaction management & data integrity - Query optimization and indexing Cloud & Infrastructure - AWS (EC2, RDS, S3, IAM, Load Balancing) - Docker & containerized deployments - Basic Kubernetes / container orchestration understanding - CI/CD pipelines (GitHub Actions, GitLab CI) Operations & Reliability - Environment configuration and deployment strategies - Logging & monitoring concepts - Performance and scalability considerations - Production issue troubleshooting Why You Choose Me Understand both backend development and cloud infrastructure Build systems that are easy to operate and scale Focus on long-term maintainability, not just short-term fixes Communicate clearly with both technical and non-technical stakeholders Instead of handing over code that “works only on my machine,” I deliver backend solutions that are ready to run reliably in real-world environments. Ideal Projects - Cloud-based backend services - API-driven platforms - Java system modernization with Kotlin - Startups needing a backend engineer who understands operations - Long-term backend support and improvement

I have +10 years of experience developing Web-based applications on the J2EE, Groovy/Grails stack. I have used the cutting-edge technologies and frameworks to build robust, secure, scalable and Test-driven applications: OS: Linux, Windows Languages: Java, Groovy, HTML, JavaScript,... Frameworks: Grails, Spring, Hibernate, JSF, Struts, AWS, Spock, Selenium,... Databases: MySQL, PostqreSQL, MongoDB, Oracle, SQL Server I have leaded and participated in the teams across continents in an Agile based approach (Scrum) and have excellent communication skills in English and French.

I am having total 16+ years of experience in IT industry. I have expertise to work as a Java Developer, Architect & as a Cloud Engineer. I have 7 AWS certifications, Docker certification and 2 Kubernetes certifications (CKA & CKAD). I have good command over Spring MVC and Spring Boot frameworks and deployment of it using various AWS services. I have worked with many AWS services and having working experience to create docker and deploy it using AWS services.