Senior Software Engineer – React & Graph Visualization

CTRL + LLC; Corridor North (MD); On-site; USD 152,000 - 197,000; Full time

Benefits offered by this job

10% employer 401(k) contribution

Life insurance

Medical, dental, vision

Disability insurance

Professional development reimbursement

Equipment reimbursement

Referral bonuses

Paid team events

Job summary

Ctrl+ LLC is seeking a senior frontend engineer to design scalable graph visualization interfaces and build React/Node services for mission-critical tasks. You will gather requirements, demonstrate working software, and ensure performance and accessibility on-site in Annapolis Junction, MD.

A TS/SCI with polygraph active clearance is required; Ctrl+ does not sponsor new clearances. Responsibilities include reviewing code and documentation, collaborating with stakeholders, and supporting

Qualifications

• 14 years of relevant experience required.
• Bachelor’s degree in Computer Science or related discipline.
• Proficiency with ReactJS, JavaScript, ESLint and Jest.

Responsibilities

• Design scalable graph visualization interfaces (frontend).
• Build frontend components and backend services.
• Gather requirements and demonstrate working software.
• Develop algorithms, tests and integrations.
• Review code, documentation and team quality.
• Support installation and troubleshoot performance.

Skills

ReactJS

JavaScript

Node.js

CSS

User research

Wireframes

SAFe

Independent ownership

Education

Bachelor’s degree in Computer Science

Tools

Docker

Kubernetes

Helm

GitLab

NWSAPI

Winston

Babel

Sigma

Job description

Work location: Annapolis Junction, MD

Work arrangement: On-site

Required Clearance: TS/SCI with polygraph

Applicants must currently hold an active TS/SCI with polygraph. Ctrl+ does not sponsor new security clearances or clearance upgrades. Applicants who do not meet this requirement cannot be considered.

Location & In-Person Requirement

All positions require in-person work. Applicants must live within commuting distance of the listed work location to be considered. Some roles may allow limited telework, but regular on-site attendance is required. These are not fully remote positions.

Your next challenge

Make complex data easier to explore. Build responsive graph interfaces, turn user feedback into useful features, and bring your ideas directly to mission stakeholders.

The mission

Support rapid prototyping and practical knowledge-management capabilities for mission operations.

What you’ll do

• Design scalable graph visualization interfaces
• Build frontend components and backend services
• Gather requirements and demonstrate working software
• Develop algorithms, tests and integrations
• Review code, documentation and team quality
• Support installation and troubleshoot performance

What you’ll bring

• 14 years of relevant experience. Bachelor’s degree in Computer Science or a related discipline from an accredited college or university.
• High-performance graph interfaces handling thousands of nodes and edges
• ReactJS, JavaScript, ESLint and Jest
• User research, wireframes, prototypes and user stories
• Node.js and Express.js services
• Secure RESTful APIs
• GitLab version control and CI/CD
• Section 508 and WCAG accessibility
• Docker, Kubernetes and Helm
• Independent ownership of work on a small team
• Scaled Agile Framework (SAFe), stakeholder presentations and product demonstrations

Preferred qualifications

• Scrum leadership and certification
• Babel, nwsapi, Winston, Graphology, AG Grid and Sigma

Compensation and flexibility

$110.47–$143.50 per hour in approximate pay; employer 401(k) contribution is additional.

Compensation: The listed range reflects approximate hourly pay across our compensation models and excludes Ctrl+’s employer 401(k) contribution. Your hourly pay will vary based on qualifications, experience, and the compensation model you select. The lower end reflects a no-bonus option with five weeks of PTO; the upper end reflects the Max Rate option without bonus or PTO.

Choose from three compensation models: Max Rate, With Bonus, or With Bonus and PTO. Offers include a projected five-year compensation comparison and a package comparison sheet. PTO and bonuses depend on the selected model and role eligibility.

Why Ctrl+?

Ctrl+ is a software engineering and staffing firm based in Elkridge, Maryland, supporting Department of Defense missions in the Fort Meade area and other listed locations. Founded by two college roommates, Brad and Bhavin, Ctrl+ brings a close-knit team approach, with founders who work on contracts alongside employees.

Benefits include:

• 10% employer 401(k) non-elective contribution
• Employer-paid life insurance and short- and long-term disability insurance
• Medical, dental and vision coverage options
• Employee Assistance Program
• Professional development and certification reimbursement
• Technology and ergonomic equipment reimbursement, subject to eligibility
• Referral and retention bonus programs, subject to eligibility
• Paid social and team events

Equal Opportunity Employer

Ctrl+ is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, genetic information, marital status, military or veteran status, or any other characteristic protected by applicable law. Hiring decisions are based on qualifications, experience, and job requirements. Reasonable accommodations are available to qualified applicants with disabilities during the application and hiring process.