Mid-to-Senior Full Stack Engineer

Interon IT Solutions; McLean (VA); Hybrid; USD 120,000 - 150,000; Full time

Job summary

Interon IT Solutions is seeking a Mid-to-Senior Full Stack Engineer with 6-8 years of experience in Rockville, MD or McLean, VA. Hybrid role focusing on Java, Angular and AWS to build and maintain full-stack applications.

You will contribute to design decisions, implement automated tests, and ensure secure coding practices while supporting critical systems and complex integrations.

Qualifications

• 6-8 years of experience in software engineering.
• Strong hands-on Java backend development skills.
• Strong Angular frontend development experience.
• Practical experience developing and supporting applications on AWS.
• Experience with system design and application architecture.
• Experience with automated testing.
• Understanding of application security and secure coding practices.
• Experience maintaining and enhancing mature enterprise applications.
• Strong troubleshooting and production-support skills.
• Ability to work with complex integrations and multiple system dependencies.

Responsibilities

• Develop, maintain and enhance full-stack applications using Java, Angular and AWS.
• Contribute to system design and architectural decisions.
• Build and maintain automated tests to improve application quality and reliability.
• Apply secure coding practices and information security principles.
• Troubleshoot application issues and resolve production incidents.
• Support integrations with Workday and other upstream and downstream systems.
• Collaborate with technical teams and business stakeholders on enhancements.
• Participate in a team responsible for 24x7 support of business‑critical applications.

Skills

Java backend

Angular frontend

AWS

System design

Automated testing

Secure coding

Production support

Integrations

Job description

Job Title: Mid-to-Senior Full Stack Engineer Java, Angular & AWS W2 Position

Location: Rockville, MD or McLean, VA - Hybrid

Duration: Long Term

Experience: 6-8 years

Local Candidates Only: Applicants must currently reside in DC, Virginia or Maryland and be available to complete a technical assessment and attend an in-person interview.

Role Overview

We are seeking a Full Stack Engineer with 6-8 years of experience and strong hands‑on expertise in Java, Angular and AWS. The ideal candidate will bring experience in system design, architecture, automated testing and secure application development.

Key Responsibilities

• Develop, maintain and enhance full-stack applications using Java, Angular and AWS.


• Contribute to system design and architectural decisions.


• Build and maintain automated tests to improve application quality and reliability.


• Apply secure coding practices and information security principles.


• Troubleshoot application issues and resolve production incidents.


• Support integrations with Workday and other upstream and downstream systems.


• Collaborate with technical teams and business stakeholders on enhancements.


• Participate in a team responsible for 24x7 support of business‑critical applications.

Required Qualifications

• 6-8 years of relevant software engineering experience.


• Strong hands‑on Java backend development skills.


• Strong Angular frontend development experience.


• Practical experience developing and supporting applications on AWS.


• Experience with system design and application architecture.


• Experience with automated testing.


• Understanding of application security and secure coding practices.


• Experience maintaining and enhancing mature enterprise applications.


• Strong troubleshooting and production-support skills.


• Ability to work with complex integrations and multiple system dependencies.