Ground Software Engineer Senior - (Security Clearance; Field-Based)

York Space Systems; Huntsville (AL); On-site; USD 120,000 - 150,000; Full time

Job summary

York Space Systems is seeking a Senior Full Stack Software Engineer to support mission operations from a local MOC. You will build and maintain a modern web-based application (React/TypeScript, C# .NET) within a microservice architecture (Docker, Kafka, REST).

You’ll work autonomously as the primary technical contact at your site, with ongoing collaboration with the Denver team for direction and longer-term projects.

Qualifications

• Bachelor's degree in Computer Science or related field.
• 6+ years of full-stack software engineering experience.
• Active Secret security clearance.
• Ability to work independently with minimal supervision.
• Strong remote collaboration skills and async communication.

Responsibilities

• Serve as local MOC technical resource and resolve issues with independence.
• Provide on-call support for mission-critical operations.
• Collaborate with Denver ground software team for feature development and long-term work.
• Develop user-facing features using TypeScript, React, C#, MSSQL, InfluxDB, Kafka, and Python.
• Write unit/integration tests and documentation.

Skills

Full-stack engineering

C#

TypeScript

React

REST APIs

SQL databases

Git

On-call support

Remote collaboration

Communication

Education

Bachelor's degree in Computer Science

Tools

Docker

Kafka

MSSQL

InfluxDB

Job description

We are looking for a Senior Full Stack Software Engineer who thrives working independently and is passionate about building software that pushes the bounds ofwhat'spossible. Our software is a modern web-based application (React/TypeScript, C# .NET) with a microservice infrastructure (Docker, Kafka, REST) that operators use to monitorand control constellations of spacecraft across several active missions.

In this role, you will be embedded at or near a Mission Operation Center (MOC) local to you, serving as the primary technical point of contact for that facility.You'lloperatewith a high degree of autonomy — often as a team of one or two — while stayingclosely integratedwith our primary office in Denver, CO for feature development, technical direction, and longer-term project work.

This is not a traditional office role. You must be comfortable owning problems end-to-end without immediate peer support, communicating proactively across time zones, and context-switching between hands-on operational support and collaborative product development.

About the Work

You’llwork closely with satellite operators, customers, and theDenverengineering and UI/UX teams to tackle hard problems like:

• Collision avoidance, conjunction analysis, and orbit-raising maneuver planning
• Operation center failover and continuity of control
• Cross-satellite network maintenance and space-to-ground link management
• Ground stationcontactscheduling and pass optimization
• Multi-vehicle mission coordination

Your work will be deployed inamocwhere itwilldirectly support active missions in orbit.

Prior space-industry experience is notrequired.

Position Details

• Team structure:Field-based;typically1–2 engineers on-site, integrated with a remote team of 6–8 developers
• Remote Policy:On-Site
• Travel:Must be willing and able to travel to Denver, CO for onboarding, training, and periodic team collaboration
• On-Call:Must be available for on-call support to serve theMOClocal to you

Key Responsibilities

• Serve as the primary technical resource for your local MOC, providing direct support to operators and resolving issues with a high degree of independence
• Provide on-call support for mission-critical operationsby responding to incidents and escalations at your assigned facility
• Integrate remotely with theDenverground softwareteamfor feature development, longer-term technical work, sprint ceremonies, and cross-team coordination
• Develop key user-facing features to support both current and future missions using TypeScript, React, C#, MSSQL,InfluxDB, Kafka, and Python
• Translate designs and requirements into high-quality, maintainable code
• Build reusable components, shared libraries, and scalable services for use across the platform
• Engineer algorithms and business logic to promote scalability and automation
• Write unit and integration tests, including tests against simulation tools tovalidatebehavior against realistic mission scenarios
• Write documentation for internal users and customers

Team Leadership

• Act as the technical face of the engineering team at your local site, building strong relationships with operators and customers
• Mentor junior engineers (on-site or remote) through code reviews, pair programming, and design discussions
• Contribute to sprint planning, technical scoping, and cross-team alignment with the distributed engineering organization
• Communicate proactively and clearly with remote teammates. Written communication and async collaboration are essential in this role
• Helpestablishand advocate for engineering best practices across the team

Required Qualifications

• Bachelor's degree in Computer Scienceor related field
• 6+ years of full-stack software engineering experience
• Active Secret security clearance
• Demonstrated ability to work independently with minimal day-to-day supervisionand comfortoperating as a primary technical resource without immediate peer support
• Strong remote collaboration skillswith experience working effectively as part of a geographically distributed team, including async communication and documentation habits
• Demonstrated ability to independently troubleshoot and resolve deployment failures, runtime issues, and environment-specific defects,including in isolatedand/or air-gapped environments without immediate escalation paths
• Deepexpertisein strongly typed backend languages, particularly C#, including multithreaded applications, concurrency patterns, and near-realtime data handling
• Experience designing and consuming REST APIs at scale
• Experience with SQL databases, including schema design and query optimization
• Experience with Git in a collaborative, multi-contributor environment
• Willingness and ability to provide on-call support for operational facilities
• Ability to travel to Denver, CO for onboarding, training, and periodic team visits
• Strong verbal and written communication skills, including presenting technical concepts to non-technical audiences
• Proven ability to thrive in a fast-paced, mission-driven environment with ambiguous requirements

Preferred Qualifications

• Eligibility forTop Secret security clearance
• Proficiencyin modern React and its core principles, including componentarchitecture and performance optimization
• Proficiencywith common front-end tooling such as Yarn, Babel, or Material-UI
• Experience working across a polyglot stack including Python, Kafka, andInfluxDB
• Experience with modern state management tools such asTanStackQuery
• Experience designing and executing forward and backward compatible database migrations and deployment strategies in live production environments
• Experience with feature flagging strategies, including gradual rollouts, environment-based toggles, and flag lifecycle management
• Experience with container-based installation and deployment strategies, including Docker and CI/CD pipeline integration