Java Full Stack Developer-Software Engineer II

Deloitte France; Jersey City (NJ); On-site; USD 120,000 - 180,000; Full time

Job summary

Deloitte Jersey City is seeking an experienced Software Engineer II- Java Full Stack Developer to join our AI & Engineering delivery team. You will design, build, and optimize backend services and scalable APIs using Java, Spring Boot, Kafka, MSSQL, and MongoDB, collaborating across product, architecture, QA, and DevOps to deliver secure, production-ready solutions.

Ideal candidates have 3+ years in Java/J2EE, Spring Boot, MSSQL, and event-driven architectures, with strong communication and

Qualifications

• 3+ years of software, systems, or embedded engineering.
• 3+ years of Java/J2EE, Core Java, and multithreading.
• 3+ years of AI or high-performance platform experience.
• 3+ years of Spring Boot experience.
• Strong MSSQL expertise with complex queries and stored procedures.
• Experience with Kafka or similar event-driven messaging.
• Backend services in scalable enterprise environments; Git and modern DevOps.
• Agile/Scrum experience; participate in sprint ceremonies and reviews.
• Bachelor's degree in CS/IT or related field; or equivalent experience.
• Limited immigration sponsorship may be available; travel ~10%.
• Limited immigration sponsorship may be available.
• Ability to travel 10%.

Responsibilities

• Design, build, and maintain backend services using Java, Spring Boot, Kafka, MongoDB, and MSSQL.
• Develop scalable APIs and event-driven components for market tech apps.
• Write efficient multithreaded Java code and troubleshoot performance issues.
• Create and optimize database queries and data access patterns in MSSQL and MongoDB.
• Support integration and workflows using Kafka; collaborate with cross-functional teams.
• Participate in code reviews, design discussions, and production support as needed.
• Identify root causes of defects and improve application stability and maintainability.
• Follow engineering best practices for coding, testing, deployment, and documentation.
• Communicate with Engagement Managers and team members; escalate when needed.
• Lead client engagement workstreams focused on improvement, optimization, and transformation.

Skills

Java/J2EE

Spring Boot

MSSQL

MongoDB

Kafka

CI/CD

Git

Agile/Scrum

Multithreading

High-performance

Education

Bachelor's degree in CS/IT

Tools

Jira

CI/CD pipelines

DevOps practices

Job description

Are you an experienced, passionate pioneer in technology who wants to work in a collaborative environment? As an experienced Software Engineer II- Java Full Stack Developer you will have the ability to share new ideas and collaborate on projects as a consultant without the extensive demands of travel. If so, consider an opportunity with Deloitte under our Project Delivery Talent Model. Project Delivery Model (PDM) is a talent model that is tailored specifically for long-term, onsite client service delivery.

Are you an experienced, passionate pioneer in technology who wants to work in a collaborative environment? As an experienced Software Engineer II- Java Full Stack Developer you will have the ability to share new ideas and collaborate on projects as a consultant without the extensive demands of travel. If so, consider an opportunity with Deloitte under our Project Delivery Talent Model. Project Delivery Model (PDM) is a talent model that is tailored specifically for long-term, onsite client service delivery.

Work you’ll do/Responsibilities

Join our AI and Systems Co-Design team, pioneering high-performance software and hardware technologies for AI and next-generation consumer devices. As a Consultant, you’ll help design, build, and optimize foundational tools and applications that power cutting-edge AI platforms and smart devices. You’ll collaborate cross-functionally, tackle large-scale technical challenges, and deliver innovative solutions with global impact.

• Design, build, and maintain backend services using Java, Spring Boot, Kafka, MongoDB, and MSSQL.
• Develop scalable, high-performance APIs and event-driven components for market technology applications.
• Write efficient multithreaded Java code and troubleshoot performance, concurrency, and reliability issues.
• Create and optimize database queries, stored procedures, and data access patterns in MSSQL and MongoDB.
• Support integration and message-driven workflows using Kafka and related event-processing patterns.
• Collaborate with product, architecture, QA, and DevOps teams to deliver secure, stable, and production-ready solutions.
• Participate in code reviews, technical design discussions, sprint ceremonies, and production support as needed.
• Identify root causes of defects, implement fixes, and improve application stability and maintainability.
• Follow engineering best practices for coding standards, testing, deployment, and documentation.
• Communicate regularly with Engagement Managers (Directors), project team members, and representatives from various functional and / or technical teams, including escalating any matters that require additional attention and consideration from engagement management
• Independently and collaboratively lead client engagement workstreams focused on improvement, optimization, and transformation of processes including implementing leading practice workflows, addressing deficits in quality, and driving operational outcomes

The successful candidate would possess these skills:

• Ability to work independently and collaborate as part of a team
• Effective written and verbal communication skills
• Meticulous attention to detail and quality of work product
• Ability to build and sustain professional relationships
• Ability to lead projects or workstreams
• Ability to manage and prioritize multiple tasks in a fast-paced and dynamic environment
• Strong interpersonal skills and professional demeanor
• Ability to meet deadlines
• Ability to provide clear guidance to others

The Team

AI & Engineering leverages cutting-edge engineering capabilities to build, deploy, and operate integrated/verticalized sector solutions in software, data, AI, network, and hybrid cloud infrastructure. These solutions are powered by engineering for business advantage, transforming mission-critical operations. We enable clients to stay ahead with the latest advancements by transforming engineering teams and modernizing technology & data platforms. Our delivery models are tailored to meet each client's unique requirements.

Qualifications

Required

• 3+ years of experience in software, systems, or embedded engineering.
• 3+ years of experience working Java/J2EE, Core Java, and multithreading
• 3+ years of experience developing or deploying AI solutions, custom hardware, or high-performance platforms.
• 3+ years of experience with Springboot
• Strong expertise in MSSQL, including complex queries and stored procedures.
• Intermediate experience with Kafka or other event-driven messaging platforms.
• Experience building backend services in a scalable enterprise environmen
• 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, preferably in Computer Science, Information Technology, Computer Engineering, or related IT discipline; or equivalent experience
• Limited immigration sponsorship may be available
• Ability to travel 10%, on average, based on the work you do and the clients and industries/sectors you serve

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 prioritize tasks into manageable work products
• Can operate independently or with minimum supervision
• Excellent Written and Communication Skills
• Ability to deliver technical demonstrations