Full-Stack Engineer, Simulation & Optimization

Henpen Corporation; Reston (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

Henpen Corporation in Reston, VA is seeking a Software Engineer with TS clearance to design and implement mission-critical software for simulation, optimization, and decision-support tools. You will work across the full stack from backend services to user interfaces, and partner with researchers and end users.

The role emphasizes end-to-end ownership, prototyping through deployment, and collaborating with a small, capable team to transform complex ideas into reliable software used in high-stakes

Qualifications

• Bachelor’s degree in Computer Science, Mathematics, Physics, Applied Math, or related field.
• 5+ years of professional software engineering experience.
• Strong experience with React, TypeScript, and modern front-end tooling.
• Experience building backend services/APIs in Java, Rust, or similar languages.
• Track record of writing readable, maintainable code in a collaborative setting.
• Comfort working with researchers, engineers, and end users to turn ideas into usable software.

Responsibilities

• Build and scale full-stack applications for simulation, optimization, and decision‑support tools.
• Design backend services and APIs (Java, Rust, or similar).
• Build responsive front-end applications (React, TypeScript).
• Collaborate with researchers and end users to shape requirements.
• Contribute at every stage from prototyping to deployment.

Skills

React

TypeScript

Java

Rust

Education

Bachelor’s degree in Computer Science, Mathematics, Physics, Applied Math, or related field

Job description

Henpen Corporation in Reston, VA is seeking a Software Engineer with TS clearance to design and implement mission-critical software for simulation, optimization, and decision-support tools. You will work across the full stack from backend services to user interfaces, and partner with researchers and end users.

The role emphasizes end-to-end ownership, prototyping through deployment, and collaborating with a small, capable team to transform complex ideas into reliable software used in high-stakes