Software Engineer with TS

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

Software Engineer Simulation, Optimization & Decision Support Join a team building mission-critical software that turns complex technical concepts into tools decision-makers actually rely on. You'll work across the full stack from backend services to the interfaces that make sophisticated simulations and optimization models usable and across the full lifecycle, from early prototyping through deployment. We're a small, collaborative group where engineers own real problems end to end. If you like working close to the research, translating hard technical ideas into clean, maintainable software, and seeing your work go from whiteboard to operational use, this role is built for you.

What You'll Do 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 and translate technical concepts into working software

Contribute at every stage prototyping, implementation, demos, and deployment

Required 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

Nice to Have

Active TS/SCI clearance

Experience with performance-sensitive, algorithmic, or parallel/concurrent software

Background in defense, national security, or other mission-driven environments 3D, geospatial, or high-performance visualization experience (WebGL, OpenGL)

Experience with distributed systems, databases, or messaging/async processing

Familiarity with AI/ML-enabled software (LLMs, computer vision, model integration)

Experience with cloud/containerized deployment (AWS, Docker, Kubernetes, CI/CD)

Qualifications:

Required 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

Nice to Have

Active TS/SCI clearance

Experience with performance-sensitive, algorithmic, or parallel/concurrent software

Background in defense, national security, or other mission-driven environments 3D, geospatial, or high-performance visualization experience (WebGL, OpenGL)

Experience with distributed systems, databases, or messaging/async processing

Familiarity with AI/ML-enabled software (LLMs, computer vision, model integration)

Experience with cloud/containerized deployment (AWS, Docker, Kubernetes, CI/CD)

Why is This a Great Opportunity:

Join a team building mission-critical software that turns complex technical concepts into tools decision-makers actually rely on. You'll work across the full stack from backend services to the interfaces that make sophisticated simulations and optimization models usable and across the full lifecycle, from early prototyping through deployment. We're a small, collaborative group where engineers own real problems end to end. If you like working close to the research, translating hard technical ideas into clean, maintainable software, and seeing your work go from whiteboard to operational use, this role is built for you.

Salary Type : Annual Salary

Salary Min : $ 135000

Salary Max : $ 175000

Currency Type : USD