# Front End Developer (mid-level)

> Astor & Sanders · McLean, United States (Remote) · — · Posted 2026-04-29

**Workplace:** remote

**Department:** Systems Integration & Development

## Description

**Front End Developer (Mid-Level)**

Systems Integration & Development (SID), an award-winning IT solutions provider based in McLean, VA, is seeking a skilled **Mid-Level Front End Developer** to join our team. This is a full-time and remote position.

**Roles & Responsibilities**

-   Develop, maintain, and enhance responsive web applications and user interfaces that provide an excellent user experience.
-   Collaborate with designers, back-end developers, and product managers to translate requirements into functional and visually appealing websites and applications.
-   Write clean, reusable, and efficient code using front-end technologies such as HTML5, CSS3, JavaScript, and modern frameworks like React or Angular.
-   Perform cross-browser and cross-device testing to ensure compatibility and responsiveness.
-   Optimize applications for maximum speed and scalability.
-   Participate in code reviews, contribute to best practices, and suggest improvements to processes and applications.
-   Troubleshoot and debug issues, providing timely fixes and enhancements.
-   Stay up-to-date with emerging front-end technologies, trends, and industry best practices.
-   Contribute to documentation and knowledge sharing within the development team.
-   Additional duties as assigned.

## Requirements

**Skills & Experience**

-   Bachelor’s degree in Computer Science, Information Technology, Systems Engineering, or related field.
-   Minimum 4 years of experience in applications development, cloud-based applications, or related roles.
-   Front End development experience with Vue 3, Pinia, PrimeVue, and Knex
-   Back End development experience .NET Web Api
-   Postgres database experience
-   Hands-on experience with cloud platforms such as AWS or others.
-   Strong understanding of data visualization, statistical processing and display, and cloud-based application processing.
-   Experience with application development, testing, and validation methodologies.
-   Ability to analyze system performance and troubleshoot complex issues.
-   Familiarity with DevOps practices, CI/CD pipelines, and Infrastructure-as-Code (IaC) tools (e.g., Terraform or others).
-   Knowledge of monitoring and logging tools (e.g., CloudWatch or others).
-   Deep understanding of modern application development design concepts, cybersecurity principles, and cloud application architecture.
-   Experience working on federal government systems, either as a contractor or federal employee, with a recent PUBLIC TRUST or higher clearance, is very strongly preferred.
-   Additional duties as assigned

## Benefits

Systems Integration & Development (SID) offers a unique, stimulating and challenging environment that fosters individual growth and rewards performance. Systems Integration & Development (SID) is an Equal Opportunity Employer.  

**Some of our competitive benefits include**

-   Generous Paid Time Off (PTO) and all Federal Holidays off
-   Comprehensive Health Coverage
-   Retirement Savings Plan
-   Pre-Tax Benefit Programs
-   Wellness and Work-Life Support
-   Professional Development
-   Performance and Referral Bonuses
-   Life and Disability Insurance

## Apply

[Apply at Astor & Sanders](https://apply.workable.com/astorandsanders/j/F92C3FBD15/apply)

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