Role: Senior Full Stack Developer
Location: Santa Clara, CA (Onsite 5 days)
Duration: 6+ Months
Pay Rate: $70 to $80
Overview: We are seeking a highly skilled Contract Senior Full-Stack Software Engineer to join our Manufacturing Execution System (MES) Software Engineering team, reporting to the Software Engineering Manager, to support modernization of legacy manufacturing systems into a cloud-native, multi-tenant SaaS platform on Microsoft Azure. This is a hands-on engineering role covering front-end development, backend services, system architecture, and data/analytics enablement, with SQL Server to PostgreSQL migration planned in a later phase. The engineer will work closely with architecture, DevOps, and engineering teams to design and deliver scalable MES SaaS capabilities, APIs, and analytics solutions.
Key Responsibilities:
- Design, build, and deliver MES SaaS product features end-to-end across UI, API, backend, and data layers
- Develop modern front-end applications using React (preferred) or Angular/Vue
- Build backend services using Java 21 and Spring Boot
- Design and implement RESTful APIs and microservices supporting MES workflows
- Implement gRPC-based cross-service communication for high-performance service-to-service interaction
- Use Temporal for workflow orchestration for complex MES and enterprise processes
- Contribute to solution architecture and system design for scalable multi-tenant SaaS platform
- Refactor legacy MES components into modular cloud-native services
- Define and implement multi-tenant SaaS architecture (isolation, scalability, performance)
- Support data architecture and future migration from SQL Server to PostgreSQL (later phase)
- Build and support Power BI dashboards and MES analytics layer
- Develop data pipelines supporting reporting and analytics
- Work with Azure services (App Services, AKS, Functions), Docker, and Kubernetes
- Support CI/CD pipelines, testing, and production releases
- Integrate legacy MES systems with modern SaaS services
Must Have Skills & Experience:
- 8–10+ years software engineering experience (full-stack or backend-heavy)
- Strong hands-on architecture, design, and development experience
- Deep experience with Java 21 and Spring Boot
- Strong front-end development experience with React (preferred) or Angular/Vue
- Strong experience with SQL Server and PostgreSQL, including migration exposure
- Experience designing or working with multi-tenant SaaS applications
- Strong experience with microservices architecture and REST APIs
- Experience with gRPC for service-to-service communication
- Familiarity with Temporal workflow orchestration
- Experience with MES / ERP / manufacturing systems (preferred)
- Strong understanding of relational database design and performance tuning
- Experience with data lakes, ETL, or analytics systems
- Hands-on experience with Power BI (dashboards, datasets, or semantic models)
- Azure cloud experience (App Services, AKS, Functions)
- Docker, Kubernetes, and distributed systems experience
Soft Skills:
- Strong technical documentation skills (design docs, architecture diagrams, runbooks)
- Excellent communication across engineering and business stakeholders
- Strong collaborative team player mindset
- Ability to operate in a fast-paced, execution-driven environment
- Strong ownership and end-to-end delivery accountability
