Backend Software Engineer - Simulations

Rune Technologies; New York (NY); On-site; USD 100,000 - 130,000; Full time

Benefits offered by this job

Comprehensive medical, dental, and vision plans

401(k) retirement plan

Paid time off based on need

Company-funded commuter benefits

Access to on-site gym

Job summary

Rune Technologies in New York, NY is looking for a Software Engineer to develop production-grade simulation and forecasting software. You'll engage with complex algorithms and collaborate with engineers and military stakeholders to build reliable systems that meet operational needs.

The ideal candidate has over 4 years of experience in software engineering and proficiency in languages like Python or C++. Rune offers competitive benefits, including comprehensive insurance, equity grants, generous paid time off, and more.

Qualifications

• 4+ years of experience in software engineering in a scientific or mathematically complex domain.
• Proficiency in mathematical models and numerical methods.
• Strong software engineering foundation for production-quality engineering.
• Experience deploying software to production, including cloud and edge infrastructure.

Responsibilities

• Build and own production-grade simulation and forecasting software.
• Work closely with mathematical models and scientific formulas.
• Collaborate with cross-functional teams for integration into workflows.
• Triage and debug production issues promptly.

Skills

Python

C++

Go

Mathematical modeling

Numerical methods

Simulation

Forecasting

Education

Degree in a scientific field (e.g., physics, applied mathematics)

Graduate degree in relevant domain

Tools

AWS

Kubernetes

Job description

About The Role

At Rune Technologies, you will be part of a high‑impact team working at the intersection of advanced logistics algorithms, modern AI‑enabled software, and complex system integrations—all in support of the warfighter at the tactical edge. You will own the simulations workstream within TyrOS, working closely with our forecaster lead and the broader platform team to build production software that models, predicts, and reasons about logistics outcomes in complex operational environments.

What You’ll Do

• Build and own production‑grade simulation and forecasting software, with a primary focus on Rune’s logistics forecaster.
• Work with mathematical models, numerical methods, and scientific formulas to implement software where correctness is defined by the underlying physics or math, not just user acceptance.
• Collaborate closely with the forecaster lead and platform team to integrate simulation capabilities into TyrOS workflows.
• Participate in technical design discussions and code reviews, contributing to a culture of engineering rigor and mission focus.
• Triage and debug issues in production, ensuring reliability and rapid iteration in support of operational needs.
• Work closely with engineers, product managers, and military stakeholders to ensure simulation and forecasting systems meet real‑world sustainment requirements.

Qualifications

• 4+ years of experience in software engineering, with demonstrated experience building software in a scientific or mathematically complex domain: sensor algorithms, motion planning, simulation, forecasting, or similar.
• Ability to work with mathematical models and numerical methods in code; comfort reasoning about correctness in terms of physics or math, not just software behavior.
• Proficiency in Python, C++, or Go.
• Strong software engineering foundation – this role requires production‑quality engineering, not analysis or research.
• Math or science background, through degree, graduate work, or professional domain experience.
• Strong sense of ownership and a bias for action.

Desired Qualifications

• Experience at a defense‑adjacent autonomous systems company in a hands‑on engineering capacity.
• Degree or graduate degree in a scientific field such as physics, applied mathematics, aerospace, or mechanical engineering.
• Familiarity with numerical simulation frameworks or scientific computing libraries.
• Experience deploying software to production environments, including cloud (AWS, Kubernetes) and edge infrastructure.

Benefits

Rune offers a full suite of insurance options at no cost for employees and low‑cost options to spouses and dependents. Highly competitive equity grants are also included in the majority of full‑time offers.

• Comprehensive medical, dental, and vision plans; premiums 100% covered by Rune for all employees; exceptionally low premiums for spouses and dependents.
• Basic life insurance and disability 100% covered for all employees by Rune; option to purchase additional life insurance available.
• Paid time off based on need, not accrual.
• Generous company holiday calendar, including a holiday shutdown in December.
• Supportive leave of absence program, including time off for military service, medical events, and parental leave.
• Full 401(k) retirement plan for all full‑time eligible employees.
• Company‑funded commuter benefits.
• Free access to on‑site gym at office.