Senior Software Engineer - Full Stack & Quality Engineering

GCS Recruitment; King of Prussia (PA); On-site; USD 110,000 - 160,000; Full time

Job summary

GCS Recruitment is seeking a Senior Software Engineer for full-stack development and quality engineering. You will design, develop, test, and support scalable applications, collaborating with cross-functional teams to deliver reliable solutions.

The ideal candidate has 8+ years of software development experience and strong skills in Java, .NET, Node.js, Ruby, AngularJS, HTML/CSS, and SQL. This role emphasizes code quality, testing, and modern SDLC practices.

Qualifications

• 8+ years of software development, engineering, testing, or related technical roles.
• Experience with Java, .NET, Node.js, Ruby, or AngularJS is preferred.
• Strong HTML/CSS and SQL relational database experience.

Responsibilities

• Design, develop, test, implement, and maintain software applications.
• Participate in the full software development lifecycle from requirements through production support.
• Develop clean, scalable, well-documented code meeting requirements.
• Create and execute test plans, test cases, and automated testing strategies.
• Collaborate with business analysts, engineers, and stakeholders to translate requirements into solutions.
• Design and maintain relational database solutions and write SQL queries for integration.
• Participate in code reviews and contribute to engineering best practices.
• Monitor application performance and recommend improvements.
• Identify opportunities to reuse code and improve system architecture.
• Troubleshoot issues and support defect resolution.

Skills

Java

.NET

Node.js

Ruby

AngularJS

HTML/CSS

SQL

OO design

Testing

Education

Bachelor's degree in Computer Science, Information Systems, or a related field

Job description

Senior Software Engineer - Full Stack & Quality Engineering

Job Summary

We are seeking an experienced Senior Software Engineer to design, develop, test, and support scalable software applications. This role is ideal for a hands-on engineer with a strong background in full-stack development, software quality, databases, and the overall software development lifecycle.

The ideal candidate will be comfortable writing high-quality code while collaborating with cross-functional teams to deliver reliable and scalable technical solutions.

Responsibilities

• Design, develop, test, implement, and maintain software applications.
• Participate in the full software development lifecycle, from requirements gathering through production support.
• Develop clean, scalable, and well-documented code that meets business and technical requirements.
• Create and execute test plans, test cases, and automated testing strategies.
• Collaborate with business analysts, engineers, and stakeholders to translate requirements into technical solutions.
• Design and maintain relational database solutions and write SQL queries for application integration and data processing.
• Participate in code reviews and contribute to software engineering best practices.
• Monitor application performance and recommend improvements.
• Identify opportunities to reuse existing code and improve system architecture.
• Troubleshoot technical issues and support the resolution of software defects.

Required Qualifications

• Bachelor's degree in Computer Science, Information Systems, or a related field, or equivalent experience.
• 8+ years of experience in software development, engineering, testing, or related technical roles.
• Strong experience with one or more of the following:
  • Java
  • .NET
  • Node.js
  • Ruby
  • AngularJS
• Experience with HTML and CSS.
• Strong SQL and relational database experience.
• Solid understanding of object-oriented programming and software design principles.
• Experience with software testing and quality assurance methodologies.
• Strong analytical, troubleshooting, and problem-solving skills.