Senior Java & .NET Developer

Role: Senior Java & .NET Developer Location: Oakland, CA (Hybrid) (1 2 days/week initially more onsite during final testing month) Contract: 4 Months (Aug Nov)
Role Purpose: This is a pure implementation role. Architecture is already completed by senior architects. The developer will execute, build integrations, and deliver features.
Core Responsibilities: Development (50% Java/50% .NET)

• Build & enhance services using Java (Spring Boot) and .NET Core / .NET 6+
• Develop REST APIs, microservices, backend components
• Implement integrations between Java .NET systems

Integration & Data Flow

• Build system-to-system integrations
• Ensure smooth data exchange between heterogeneous systems
• Work with SQL/NoSQL data stores

DevOps & Testing

• Support CI/CD pipelines
• Assist with deployments & release cycles
• Participate in integration testing & UAT
• Help with performance tuning during final testing phase

Required Skills: Java

• Java 8+
• Spring Boot
• Microservices
• REST APIs
• Hibernate/JPA

.NET

• .NET Core / .NET 6+
• C#, ASP.NET
• API development
• Backend services

General

• 7 10+ years hands-on coding
• Strong understanding of system design
• SQL/NoSQL
• CI/CD, Docker
• AWS or Azure

Preferred

• Hybrid Java + .NET experience
• Kafka or messaging systems
• Public sector/utilities domain