Lead Full Stack Engineer

Job Title: SDIII: Full Stack C# Engineer Senior / Lead Software Engineer – Full Stack Development

Location: Jersey City or Holmdel, New Jersey Work Arrangement: Hybrid – 2 Days Onsite per Week Employment Type: Contract-to-Direct Hire

This is a senior or lead-level engineering opportunity requiring strong hands-on expertise across the full technology stack, particularly C#, .NET, SQL, Angular, and AWS.

The successful candidate will contribute to software architecture, backend services, frontend development, database design, API integration, and cloud-based application development. The role also involves working with service-oriented architecture (SOA) or event-driven architecture, collaborating with technical and business stakeholders, and helping deliver reliable, scalable, and high-quality applications.

The engineer will participate throughout the software development lifecycle, provide technical guidance to junior and mid-level developers, and coordinate with onshore and offshore engineering resources.

Key Responsibilities

1. Full Stack Application Development

• Design, develop, enhance, and maintain scalable enterprise web applications.
• Develop backend applications and services using C# and .NET technologies.
• Build responsive and maintainable frontend applications using Angular and JavaScript.
• Integrate frontend and backend components to deliver end-to-end business solutions.
• Apply object-oriented programming principles and enterprise software design practices.
• Write clean, reusable, maintainable, and efficient code.

2. Backend Development and API Integration

• Design, develop, and integrate RESTful APIs.
• Build scalable backend services and application components.
• Apply service-oriented architecture (SOA) and event-driven architecture concepts.
• Support application integration across multiple enterprise systems.
• Troubleshoot backend performance, integration, and application issues.
• Ensure reliability, maintainability, and scalability of software services.

3. Database and SQL Development

• Develop and optimize SQL queries and database operations.
• Support database design, data access, and application integration.
• Identify and resolve database performance issues.
• Ensure efficient data processing and reliable application performance.

4. AWS Cloud Development

• Develop and support applications deployed in AWS environments.
• Utilize relevant AWS services to build scalable and reliable application solutions.
• Participate in cloud application architecture, integration, and deployment.
• Support application performance optimization and troubleshooting in cloud environments.

5. Architecture and Technical Design

• Participate in designing end-to-end application architecture.
• Develop solutions that support speed, scalability, performance, and reliability.
• Apply enterprise software design principles and architectural best practices.
• Contribute to technical design discussions and architectural decisions.
• Evaluate technical approaches and recommend suitable solutions.

6. Testing, Debugging and Performance Optimization

• Develop and execute unit tests and integration tests.
• Identify, troubleshoot, and resolve software defects.
• Perform debugging and application performance optimization.
• Improve application stability, reliability, and code quality.
• Support continuous improvement of development and testing practices.

7. Agile Development and Deployment

• Participate in all phases of the Agile software development lifecycle.
• Contribute to requirements analysis, technical design, implementation, testing, and deployment.
• Collaborate with product owners, business stakeholders, architects, and engineering teams.
• Support delivery schedules and ensure high-quality software releases.

8. Technical Leadership and Team Collaboration

• Provide technical guidance and mentorship to junior and mid-level engineers.
• Support code reviews and promote development best practices.
• Coordinate with onshore and offshore engineering resources.
• Help resolve technical challenges and guide implementation decisions.
• Communicate complex technical concepts clearly to technical and nontechnical stakeholders.
• Support team collaboration and successful project delivery.

Required Technical Skills

Mandatory Skills:

• C# / .NET – Strong hands-on development experience.

• SQL – Strong database development and query optimization experience.

• Angular – Hands-on frontend development experience.

• AWS – Experience developing or supporting cloud-based applications.

• SOA or Event-Driven Architecture – Practical experience with service-oriented or event-driven application architecture.

Required Qualifications

• 5–7 years of industry experience developing large-scale software applications.
• Strong experience building enterprise web applications.
• Strong programming expertise in C# and .NET. Java experience may be an additional advantage but does not replace the mandatory C# requirement.
• Strong understanding of object-oriented programming and enterprise software design principles.
• Hands-on experience with JavaScript and Angular.
• Experience designing and integrating RESTful APIs.
• Experience with service-oriented architecture concepts and methodologies or event-driven architecture.
• Strong SQL and database development knowledge.
• Experience working with AWS services.
• Experience with unit testing and integration testing.
• Excellent debugging and application optimization capabilities.
• Ability to design and guide end-to-end systems for performance and scalability.
• Experience participating in all phases of Agile software development, including design, implementation, and deployment.
• Strong analytical, verbal, written, communication, and presentation skills.
• Ability to explain complex technical concepts to nontechnical stakeholders.
• Experience providing technical guidance and supporting junior and mid-level engineers.
• Prior leadership or management experience coordinating onshore and offshore resources.

Ideal Candidate Profile

The ideal candidate is a hands-on Full Stack C# Engineer with strong experience in enterprise application development.

The candidate should have practical expertise in C#, .NET, SQL, Angular, and AWS, along with experience designing REST APIs and working with SOA or event-driven architecture.

In addition to technical capabilities, the candidate should demonstrate senior-level engineering judgment, debugging and problem-solving skills, and the ability to guide development teams.

Candidates with strong Java backgrounds but limited or no hands-on C#/.NET experience should not be prioritized.