Staff Software Engineer Jobs in Washington, DC

The Nuclear Company is the fastest growing startup in the nuclear and energy space creating a never before seen fleet-scale approach to building nuclear reactors. Through its design-once, build-many approach and coalition building across communities, regulators, and financial stakeholders, The Nuclear Company is committed to delivering safe and reliable electricity at the lowest cost, while catalyzing the nuclear industry toward rapid development in America and globally.

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 - $173,000 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.