Navigation Engineer (Simulation Software) Verified today

Logos Space · Mountain View, CA · San Diego · Space Systems · first seen 2026-07-31

About the Role

Logos Space is building a proliferated Low Earth Orbit (pLEO) constellation to deliver resilient, high-performance connectivity to enterprise and government users worldwide. The Navigation team is designing and building software and infrastructure for spacecraft timing, astrodynamics, maneuver planning, orbit determination, and navigation workflows across flight and ground systems.

In this role, you will help develop a constellation-level software framework to model, test, validate, and operate the proliferated LEO constellation as a dynamic space network. You will build software infrastructure that connects spacecraft navigation state, mission geometry, link availability, network topology, routing behavior, operational constraints, and software-defined networking workflows into a scalable constellation-level test and analysis environment.

You will work closely with navigation, flight software, ground software, networking, mission operations, product, and systems engineering teams to define interfaces, build scenario tooling, validate network behavior, and make this framework an engineering-quality capability.

Responsibilities

Develop and maintain C++ and Python software for the constellation-level software framework.
Build constellation-scale infrastructure that combines spacecraft ephemerides, mission geometry, timing behavior, link availability, ground assets, network topology, routing state, and operational constraints.
Develop software services that ingest, generate, and distribute navigation-derived state products including propagated trajectories, time-tagged spacecraft states, contact geometry, link windows, coverage products, and mission event timelines.
Support modeling and testing of software-defined networking behavior, including routing state, link-state changes, handovers, path availability, latency, throughput constraints, degradation modes, and network recovery behavior.
Build scenario generation tools for constellation deployment, nominal operations, planned maneuvers, ground contacts, network outages, spacecraft degradation, regional demand changes, and what-if cases.
Develop capabilities to simulate future constellation behavior, reconstruct past events, compare predicted and observed behavior, and support anomaly investigations.
Build user-facing dashboards, visualization tools, and 2D/3D constellation viewers for engineers, operators, and stakeholders to inspect constellation state, link availability, routing behavior, coverage, latency, and network performance.
Develop scalable simulation and data-processing infrastructure capable of handling many spacecraft, many links, long time horizons, and repeated scenario sweeps.
Define data models, message schemas, configuration formats, scenario definitions, telemetry interfaces, and validation workflows for framework inputs and outputs.
Build validation infrastructure including unit tests, integration tests, regression tests, deterministic replay, scenario comparison tools, performance benchmarks, and cross-checks.
Support integrated test campaigns, operational rehearsals, constellation performance analysis, commissioning, flight-data investigations, and anomaly response.

Basic Qualifications

Bachelor's degree in Aerospace Engineering, Computer Science, Electrical Engineering, Applied Mathematics, Physics, or a related STEM field, or equivalent practical experience.
5+ years of relevant professional experience building simulation software, constellation software, distributed systems, network simulation, astrodynamics software, spacecraft operations software, or high-reliability engineering software. Strong graduate research or project experience may substitute for some professional experience.
Proficiency in modern C++ and/or Python for production software development.
Experience building scalable software systems that combine simulation, data processing, APIs, visualization, and automated validation.
Working knowledge of orbital mechanics, spacecraft ephemerides, coordinate frames, time systems, mission geometry, or similar dynamic system modeling fundamentals.
Experience modeling or analyzing network behavior, routing, link availability, latency, throughput, topology changes, or distributed system performance.
Experience building scenario generation, replay, regression, or automated test infrastructure.
Experience with Linux-based development environments, Git, and automated testing.
Strong written and verbal communication skills.

Preferred Qualifications

8+ years of relevant experience and the ability to independently own technical workstreams.
Master's degree or PhD in Aerospace Engineering, Computer Science, Electrical Engineering, Applied Mathematics, Physics, or related field with specialization in astrodynamics, distributed systems, networking, simulation, or spacecraft operations.
Experience building constellation-level mission modeling, satellite networking, operational analysis, or large-scale simulation software.
Experience with LEO communication constellations, inter-satellite links, ground networks, dynamic routing, SDN, handover behavior, coverage analysis, or latency and throughput modeling.
Experience with software-defined networking, routing protocols, link-state systems, network orchestration, traffic modeling, or distributed network control planes.
Experience with visualization frameworks.
Experience with astrodynamics and mission simulation tools.
Experience integrating simulation environments with flight software, ground software, network testbeds, hardware-in-the-loop systems, or mission operations systems.
Familiarity with CCSDS data formats, spacecraft command and telemetry systems, mission planning interfaces, or ground-to-flight software interfaces.
Ability and willingness to obtain and maintain a U.S. Government Security Clearance.