---
title: "Sr. Software Engineer at Essential – Rockville, MD · Hybrid"
canonical: "https://www.metaintro.com/job/sr-software-engineer-at-essential-55219166-4d74-5f8b-b082-6feaa9ab7728"
language: "en"
author: "Metaintro"
---

[/company/essential](/company/essential)[Essential](/company/essential)
# Sr. Software Engineer at Essential

Compensation

$115,000 – $160,000/yr

**Setup**
: Hybrid

**Location**
: Rockville, Maryland

**Type**
: Full-time

**Level**
: senior

**Posted**
: Sep 15, 2026

## Description

Essential Software Inc. is hiring a Sr. Software Engineer to architect, develop, and maintain scalable React.js front-end applications and component libraries for NCI platforms. The role also involves building RESTful and GraphQL APIs with Node.js, creating technical documentation, leading complex projects, mentoring junior engineers, and collaborating with UX designers, product owners, and government stakeholders. The position is hybrid, requires periodic travel to the Rockville, Maryland client office, and is based in the Washington, D.C., Maryland, or Virginia area.

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