Lead Enterprise Integration Engineer - C#/.NET

L3Harris Technologies, Inc.; Melbourne (FL); On-site; USD 120,000 - 150,000; Full time

Job summary

L3Harris Technologies in Melbourne, FL seeks a Lead Integration Engineer to design, develop, and support enterprise integrations across the organization. You will translate business requirements into durable integration designs and production-ready solutions using C# and .NET technologies.

This hands-on role focuses on API and service development, messaging, security, observability, testing, and deployment readiness, while shaping patterns and engineering practices for scale.

Qualifications

• Bachelor’s degree with a minimum of 9 years of experience developing and integrating complex enterprise systems.
• Experience designing, developing, testing, deploying, and supporting enterprise APIs and system integrations.
• Proven ability to translate requirements into durable integration designs.

Responsibilities

• Design, develop, test, deploy, and support enterprise integrations using C# and .NET technologies.
• Build and maintain REST APIs, services, messaging-based integrations, and application workflows.
• Translate business, functional, and technical requirements into integration designs with clear interfaces, data flows, dependencies, and acceptance criteria.
• Define reusable integration patterns, standards, interface contracts, and documentation practices.
• Design integrations for security, reliability, observability, and maintainability.
• Implement authentication, authorization, validation, error handling, retries, and reconciliation.
• Develop automated unit, integration, and contract tests to validate integration behavior.
• Diagnose and resolve complex integration issues across multiple applications and environments.
• Partner with teams to deliver production-ready integration solutions and provide technical leadership.
• Lead design/code reviews and promote continuous improvement of engineering practices.

Skills

C#

.NET

REST APIs

System integration

Unit testing

Security

Observability

Leadership

AI integration

Education

Bachelor’s degree + 9+ years

Job description

L3Harris Technologies in Melbourne, FL seeks a Lead Integration Engineer to design, develop, and support enterprise integrations across the organization. You will translate business requirements into durable integration designs and production-ready solutions using C# and .NET technologies.

This hands-on role focuses on API and service development, messaging, security, observability, testing, and deployment readiness, while shaping patterns and engineering practices for scale.