Senior Simulation & Optimization Engineer

Job Juncture; Reston (VA); On-site; USD 135,000 - 175,000; Full time

Job summary

Job Juncture is seeking a Software Engineer for Simulation, Optimization & Decision Support in Reston, VA. You will build full-stack applications across backend and frontend, turning research ideas into usable software for decision-makers.

You’ll collaborate with researchers and end users, design APIs in Java/Rust, and implement React/TypeScript interfaces, from prototyping to deployment, owning problems end-to-end.

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.
• A track record of writing readable, maintainable, well-engineered code in a collaborative setting.
• Comfort working directly with researchers, engineers, and end users to turn ideas into usable software.
• Exposure to full-stack web development in any modern framework.
• U.S. citizenship required; must hold an active Top Secret clearance.

Responsibilities

• Build and scale full-stack applications supporting simulation, optimization, and decision-support tools.
• Design backend services and APIs (Java, Rust, or similar).
• Build responsive, intuitive front-end applications (React, TypeScript).
• Partner directly with researchers and end users to shape requirements.
• Contribute at every stage: prototyping, implementation, demos, and deployment.

Skills

React

TypeScript

Frontend tooling

Full-stack development

Security clearance

Education

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

Tools

Java

Rust

Job description

Job Juncture is seeking a Software Engineer for Simulation, Optimization & Decision Support in Reston, VA. You will build full-stack applications across backend and frontend, turning research ideas into usable software for decision-makers.

You’ll collaborate with researchers and end users, design APIs in Java/Rust, and implement React/TypeScript interfaces, from prototyping to deployment, owning problems end-to-end.