Software Engineer (SWE) Skill Level 4 - Team Lead

CTRL + LLC; Corridor North (MD); Hybrid; USD 252,000 - 296,000; Full time

Job summary

CTRL + LLC is seeking a Software Engineer (SWE) to design, develop, and maintain a scalable distributed Metrics and Monitoring solution for HPC systems. The role emphasizes high-performance web apps, Splunk integration, and end-to-end development across frontend and backend.

You will work mainly on-site in Annapolis Junction, MD, with some telework options. This senior SWE position requires deep software development experience and strong collaboration with mission stakeholders.

Qualifications

• Proven experience designing and building large-scale graph visualization interfaces for the web.
• Strong UI development skills with ReactJS and modern frontend tooling.
• Solid experience with Node.js/Express.js for server-side development.
• Experience designing and consuming RESTful APIs and integrating with services.
• Proficiency with GitLab for version control, CI/CD, and project management.
• Working knowledge of Section 508 / WCAG accessibility standards and implementation.

Responsibilities

• Design and implement high-performance, web-based graph visualization interfaces for large datasets.
• Build reusable frontend code with ReactJS, guided by user research and wireframes.
• Develop and maintain scalable server-side apps and microservices with Node.js/Express.js.
• Create and consume well-structured RESTful APIs with security in mind.
• Write automated tests and participate in CI/CD pipelines using GitLab.

Skills

Graph visualization UI

ReactJS

Node.js

RESTful APIs

GitLab

Accessibility WCAG

Independent work

Communication

Tools

Node.js

Express.js

ReactJS

Docker

Kubernetes

GitLab

Job description

Software Engineer (SWE) — Skill Level 4

The Software Engineer shall be part of a team responsible for designing, developing and maintaining a comprehensive distributed Metrics and Monitoring solution for HPC systems to ensure the reliability, performance, and scalability of HPC infrastructure. In this position, the Software Engineer must be proficient with Splunk.

Position Required Skills
Experience using the Linux CLI and the Linux suite of tools
Experience developing Shell/Perl scripts to automate manual processes
Recent software development experience using Python
Experience with Splunk SPL, dashboard creation, and report development
Experience with Splunk data onboarding, field extractions, data models, and performance tuning
Experience with Splunk alerting, incident management workflows, and event correlation
Familiar interfacing with Log Management tools including Syslog-ng and rsyslog
Familiar Message Brokers such as Kafka
Experience with IaC (Infrastructure as Code) principles and automation tools including
Ansible
Experience with CI/CD principles, methodologies, and tools such as GitLab CI
Experience with Git Source Control System

Fourteen (14) years of experience as a SWE, in programs and contracts of similar scope, type,
and complexity.

Position Desired Skills

Experience with the Atlassian Tool Suite (JIRA, Confluence)

About CTRL+

At CTRL+, we build powerful, mission-driven software that makes a difference. We're a collaborative, fast-moving team that values clean code, sharp thinking, and engineers who take ownership. If you thrive in a dynamic environment and love solving complex technical challenges, we want to hear from you.

Location

Some telework available, role is however mainly on site in Annapolis Junction MD

What You'll Do

As a Software Engineer at CTRL+, you'll play a key role in designing, developing, and maintaining high-performance web applications and services. You'll collaborate closely with analysts, engineers, and mission stakeholders to deliver scalable, user-centered solutions.

• Design and implement high-performance, web-based graph visualization interfaces capable of rendering and interacting with large-scale datasets (thousands of nodes and edges) while maintaining responsiveness and usability
• Build clean, reusable, and scalable frontend code using ReactJS, informed by user research, wireframes, mockups, prototypes, and user stories
• Develop and maintain scalable server-side applications and microservices using Node.js and Express.js
• Design, implement, and consume well-structured, secure, and documented RESTful APIs
• Write and maintain automated JavaScript tests using ESLint and Jest
• Manage version control, CI/CD pipelines, and project workflows using GitLab
• Debug existing software, correct defects, and integrate solutions into new or modified systems
• Develop and implement algorithms that meet or exceed system performance and functional standards
• Analyze systems flow, data usage, and work processes to investigate and resolve problem areas
• Write and review software and system documentation; recommend improvements to development process standards
• Assist with developing and executing test procedures for software components and perform quality control on team deliverables
• Coordinate software system installation and monitor equipment functioning to ensure operational specifications are met
• Operate effectively within a Scaled Agile Framework (SAFe) environment
• Communicate complex technical concepts clearly to both technical and non-technical audiences, including senior leadership and mission stakeholders
• Deliver compelling product demonstrations and author accurate, concise project updates

What You Bring

• Proven experience designing and building large-scale graph visualization interfaces for the web
• Strong UI development skills with ReactJS
• Solid experience with Node.js and Express.js for server-side development
• Demonstrated ability to design and consume RESTful APIs
• Proficiency with GitLab for version control, CI/CD, and project management
• Working knowledge of Section 508 / WCAG accessibility standards and implementation
• Familiarity with containers (Docker) and orchestration tools such as Kubernetes (CK8S and Helm)
• Ability to work independently on a small team, manage timelines, and solve problems proactively with minimal supervision
• Exceptional communication and presentation skills
• 20 YOE REQUIRED

Nice to Have

• Scrum Lead experience and/or certification
• Familiarity with the following Node.js and ReactJS packages: Babel, nwsapi, Winston, Graphology, AG Grid, and Sigma

Compensation

$252,000 - $296,000 | Salary commensurate with experience

Join CTRL+

We're building something meaningful. Come be part of it.