Software Engineer III - Java Full Stack Developer

Deloitte is seeking a Software Engineer III - Java Full Stack Developer based in Princeton, NJ on-site. The role emphasizes architectural work across the front-end in React and back-end in Python, development of APIs and services, and leading client-engagement workstreams within the Value-Based Care initiative.

Responsibilities

• Technical leadership across the full stack, owning architecture and implementation for front-end (React) and back-end (Python) to ensure maintainability and scalability.
• Data and database engineering, including designing schemas, building and optimizing complex SQL queries, managing migrations, and boosting performance.
• Establishing and enforcing standards for code quality, testing, CI/CD, documentation, and observability (logging, metrics, tracing).
• Design, develop, and optimize scalable software for AI platforms and consumer devices.
• Integrating and automating load, stress, and real-user scenario testing within development and production lifecycles.
• Analyzing, monitoring, and addressing performance, reliability, and scalability challenges in complex systems.
• Collaborating with engineers working on custom hardware, embedded systems, and cloud infrastructure.
• Applying advanced profiling, benchmarking, and system optimization techniques.
• Contributing to solution architecture, API design, security, and system integration.
• Maintaining regular communication with Engagement Managers (Directors) and project teams, escalating matters that require engagement-management attention.
• Leading client engagement workstreams focused on process improvement, optimization, and transformation, including implementing best-practice workflows and driving operational outcomes.

Requirements

• 7+ years of experience in software, systems, or embedded engineering.
• 7+ years hands-on Java/J2EE development experience.
• 7+ years Python experience building APIs and services, using frameworks such as FastAPI, Django, or Flask.
• 2+ years in a leadership role guiding engineering decisions and delivery.
• SQL design, query optimization, indexing, and performance tuning.
• React component design, state management, and performance considerations.
• Experience with microservices, event-driven architectures, or distributed systems patterns.
• Familiarity with Docker and Kubernetes for containerization and orchestration.
• Understanding of network protocols, security best practices, and scalable API design.
• Experience with Git, CI/CD pipelines, and modern DevOps practices.
• Experience working within Agile/Scrum development teams, participating in sprint planning, code reviews, and collaborative solutioning.
• Bachelor's degree in Computer Science, Information Technology, Computer Engineering, or related IT discipline; or equivalent experience.
• Limited immigration sponsorship may be available.
• Ability to travel approximately 10 percent on average, based on client assignments.

Technologies

• Java
• J2EE
• Python
• FastAPI
• Django
• Flask
• React
• SQL
• Docker
• Kubernetes
• Git
• CI/CD

Benefits

• Discretionary annual incentive program

Preferred

• Experience developing or deploying AI solutions, custom hardware, or high-performance platforms.
• Proven ability to communicate complex technical concepts clearly and effectively.
• Analytical ability to manage multiple projects and translate tasks into actionable work products.
• Ability to operate independently or with minimal supervision.
• Strong written and verbal communication skills.
• Experience delivering technical demonstrations.