Top 464 Staff software engineer Jobs in Washington, Dc

Staff Software Engineer
The Nuclear Company —Washington, DC
- $150,000 - $203,000 a year
- Computer science
- 7 years
- Computer Science
- Health insurance
- Dental insurance
Staff Software Engineer - Back End
Ad Hoc —McLean, VA
- $130,000 - $160,000 a year
- Full-time
- Remote
- 5 years
- Product management
- Military encouraged
- Paid parental leave
- Health insurance
Quick Apply
4d
Staff Software Engineer - NOS
The Nuclear Company —Washington, DC
- $151,000 - $204,000 a year
- Computer Science
- Master's degree
- AWS
- Health insurance
- Dental insurance
Principal Application Engineer
Navy Federal Credit Union —Vienna, VA
- $150,100 - $206,450 a year
- Online Application
- 7 years
- Azure
- Computer Science
6d
Software Control Systems Capability Lead
Rolls-Royce —Reston, VA
- $152,033 - $247,054 a year
- Full-time
- Hybrid work
- Engineering
- Office
- 3 years
- Paid parental leave
- Health savings account
Staff Software Engineer - AI Trainer
DataAnnotation —Chantilly, VA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Senior Software Engineer, RF Spectrum Solutions
Battelle —Chantilly, VA
- $135,000 - $175,000 a year
- Full-time
- Hybrid work
- Computer Science
- 5 years
- System design
- Wellness program
- Health insurance
11d
API Systems Engineer
Navy Federal Credit Union —Vienna, VA
- $96,100 - $123,200 a year
- Online Application
- Oracle
- Computer Science
- Research
Model Based Systems Engineer (MBSE) / Digital Engineer - Junior
Modern Technology Solutions, Inc —Suitland-Silver Hill, MD
- Mid-level
- Microsoft Office
- Java
- Disability insurance
- Health insurance
Systems Engineer – Data & Analysis Infrastructure
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $105,000 - $245,000 a year
- Full-time
- Computer Science
- Bachelor of Science
- Windows
- Disability insurance
- Health insurance
6d
Senior Software Engineer (SWE-3)
Leidos —Fort Meade, MD
- $107,900 - $195,050 a year
- Full-time
- 11+ years
- Java
- Bachelor's degree
- Paid holidays
- Paid time off
Software Engineer (TS/SCI cleared)
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- Computer science
- Azure
- Computer Science
- Disability insurance
- Health insurance
6d
Senior Software Engineer/AI Practitioner
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $105,000 - $290,000 a year
- Full-time
- Computer science
- Computer Science
- Bachelor of Science
- Disability insurance
- Health insurance
Embedded Systems Design Engineer
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- 7 years
- Master's degree
- Senior level
- Disability insurance
- Health insurance
6d
Communications Engineer - Electronic Warfare
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- Computer Science
- 5 years
- Doctor of Philosophy
- Disability insurance
- Health insurance
6d
Systems Integration Engineer (NDA-2)
Leidos —Fort Meade, MD
- $73,450 - $132,775 a year
- Full-time
- System design
- Master's degree
- High school diploma or GED
- Paid holidays
- Paid time off
Senior C++ Software Engineer - Multi-Mission Planning Development
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $85,000 - $195,000 a year
- Full-time
- Computer science
- Computer Science
- Bachelor of Science
- Disability insurance
- Health insurance
6d
Full Stack Designer/Developer
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- Computer Science
- Mid-level
- Java
- Disability insurance
- Health insurance
Software Engineer - TS/SCI with Polygraph
General Dynamics Information Technology —Chantilly, VA
- $158,855 - $214,921 a year
- Azure
- Computer Science
- AWS
- Paid holidays
- 401(k) matching
Senior Virtualization Engineer
Leidos —Camp Springs, MD
- $131,300 - $237,350 a year
- Full-time
- System design
- Master's degree
- Bachelor's degree
7d

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Staff Software Engineer

The Nuclear Company
Washington, DC

Apply Now

Job Details

$150,000 - $203,000 a year

Benefits

Health insurance
Dental insurance
Vision insurance
401(k) matching

Qualifications

Software engineering
System troubleshooting
Engineering development testing
Data structures
System design
Quality assurance experience within IT
System design for system development
Software testing
Agile software development
Cross-functional communication

Full Job Description

The Nuclear Company is the fastest growing AI tech-enabled startup in the nuclear and energy space, pioneering a fleet-scale approach to building the next generation of nuclear reactors. Through our design-once, build-many model, we're accelerating the deployment of safe, reliable, and affordable nuclear energy.

We operate with an AI-first mindset. Every employee is expected to leverage AI, technology, and the Nuclear Operating System (NOS) as integral components of their role to improve the quality, speed, and impact of their work. We expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence.

We hire people who are driven by purpose, thrive in ambiguity, and are energized by building what has never been built before. Our team combines intellectual curiosity with high agency, embraces candid feedback and continuous learning, and holds themselves and others to exceptional standards. Our values—Transparency, Responsibility, Unity, Scrappiness, and Tenacity—guide how we hire, collaborate, and make decisions every day. They are not words on a wall; they are the standard by which we operate. TRUST is the foundation of our safety culture, fostering intellectual honesty, accountability, and open communication, while our values challenge every team member to execute with urgency, humility, resilience, and an unwavering commitment to our mission.

About the role

As a Staff Software Engineer, you will serve as a technical leader responsible for architecting and delivering software that powers critical aspects of our nuclear energy platform. You'll work at the intersection of software, engineering, and operations, solving complex problems in a highly regulated environment where reliability and safety are paramount. This role requires both strategic thinking and hands-on execution, with opportunities to influence technical direction, mentor engineers, and drive cross-functional initiatives. Your work will directly contribute to advancing clean, carbon-free energy solutions and shaping the future of the nuclear industry.

Responsibilities

Software Design & Development: Lead the design and development of robust, scalable, and high-quality software solutions for critical nuclear energy applications. This includes architecting new features, writing clean and efficient code, and participating in code reviews.
Technical Leadership: Provide technical leadership and guidance to junior and mid-level engineers, mentoring them in best practices for software development, quality, and adherence to industry standards.
System Integration: Work closely with hardware engineers, control systems engineers, and other software teams to ensure seamless integration of software components with physical systems and external interfaces.
Quality & Compliance: Implement and advocate for rigorous software quality assurance practices, including comprehensive testing, debugging, and documentation, ensuring compliance with nuclear industry regulations and internal quality standards.
Performance Optimization: Identify and resolve complex performance issues, ensuring our software operates efficiently and reliably under demanding conditions.
Problem Solving: Tackle challenging technical problems, proposing innovative solutions and driving their implementation from concept to deployment.
Documentation: Create and maintain thorough technical documentation, including design specifications, architecture diagrams, and testing protocols.

Experience

Bachelor's degree in Computer Science, Software Engineering, Electrical Engineering, or a closely related technical field.
7+ years of progressive experience in software development, with a strong portfolio of successfully delivered projects.
Experience developing software for highly regulated, safety-critical, or mission-critical industries (e.g., nuclear, aerospace, defense, medical devices, automotive safety). Direct nuclear industry experience is highly preferred.
Proficiency in one or more relevant programming languages such as JavaScript, TypeScript, or Python.
Demonstrated experience with full software development life cycles (SDLCs), including Agile and Waterfall methodologies.
Strong understanding of software design patterns, data structures, and algorithms.
Experience with version control systems (e.g., Git) and collaborative development workflows.
Expertise in designing and implementing complex software architectures.
Deep understanding of software quality assurance principles and testing methodologies.
Ability to debug and troubleshoot intricate software systems.
Exceptional problem-solving and analytical skills.
Strong written and verbal communication skills, with the ability to articulate technical concepts to diverse audiences.
Ability to work effectively in a collaborative, fast-paced environment.

Preferred Exerience

Experience building offline-capable, air-gapped, or otherwise disconnected applications, and packaging them for constrained or containerized deployment environments.
Hands-on experience integrating third-party physical security systems.
Experience applying AI features & ML models into production workflows.
Exposure to nuclear, critical infrastructure, defense, or physical security domains.

Benefits

Competitive compensation packages
401k with company match
Medical, dental, vision plans
Generous vacation policy, plus holidays

Estimated Starting Salary Range
The estimated starting salary range for this role is $150,000 - $203,000 annually less applicable withholdings and deductions, paid on a bi-weekly basis. The actual salary offered may vary based on relevant factors as determined in the Company's discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role.

EEO Statement
The Nuclear Company is an equal opportunity employer committed to fostering an environment of inclusion in the workplace. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We prohibit discrimination in all aspects of employment, including hiring, promotion, demotion, transfer, compensation, and termination.

Export Control
Certain positions at The Nuclear Company may involve access to information and technology subject to export controls under U.S. law. Compliance with these export controls may result in The Nuclear Company limiting its consideration of certain applicants.

Recruiting Fraud Alert
Your safety is our priority. We want to ensure your job search stays secure. Please note that the team at The Nuclear Company only communicates through official @thenuclearcompany.com email addresses. We will never ask for payments or sensitive financial information at any stage of our recruitment process. For your peace of mind, please verify all openings and submit your applications directly through our official careers page.

Apply Now

Refine Your Search

staff software engineer jobs in washington, dc

Staff Software Engineer

Staff Software Engineer - Back End

Staff Software Engineer - NOS

Principal Application Engineer

Software Control Systems Capability Lead

Staff Software Engineer - AI Trainer

Senior Software Engineer, RF Spectrum Solutions

API Systems Engineer

Model Based Systems Engineer (MBSE) / Digital Engineer - Junior

Systems Engineer – Data & Analysis Infrastructure

Senior Software Engineer (SWE-3)

Software Engineer (TS/SCI cleared)

Senior Software Engineer/AI Practitioner

Embedded Systems Design Engineer

Communications Engineer - Electronic Warfare

Systems Integration Engineer (NDA-2)

Senior C++ Software Engineer - Multi-Mission Planning Development

Full Stack Designer/Developer

Software Engineer - TS/SCI with Polygraph

Senior Virtualization Engineer

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