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About the Role

York Space Systems is seeking a Senior Full Stack Software Engineer passionate about building software that pushes the bounds of what's possible. Our software is a modern web-based application (React/TypeScript, C# .NET) with a microservice infrastructure (Docker, Kafka, REST) that operators use to monitor and control constellations of spacecraft across several active missions. As a senior member of the team, you'll take end-to-end ownership of complex features, drive technical planning and breakdown, and actively invest in the growth of the engineers around you. You'll work closely with engineers, satellite operators, customers, and UI/UX to tackle hard problems like collision avoidance, conjunction analysis, orbit-raising maneuver planning, operation center failover, cross-satellite network maintenance, ground station contact scheduling, and multi-vehicle mission coordination. Your work will be integrated with our in-house simulation software and deployed in Mission Operation Centers where it directly supports active missions in orbit. Prior space-industry experience is not required.

Responsibilities

Develop key user-facing features 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
Engineer algorithms and business logic for scalability and automation
Write unit tests and documentation
Write integration tests against simulation tools to validate behavior
Participate in agile ceremonies including sprint planning, standups, and retrospectives
Collaborate with engineers, operators, UI/UX, and customers across departments
Mentor junior and mid-level engineers through code reviews, pair programming, and design discussions
Contribute to sprint planning, technical scoping, and cross-team alignment
Help establish and advocate for engineering best practices

Requirements

Bachelor's degree in Computer Science or related field
6+ years of full-stack software engineering experience
Deep expertise in strongly typed backend languages, particularly C#, including multithreaded applications, concurrency patterns, and near-real-time data handling
Strong proficiency in modern React and its core principles, including component architecture and performance optimization
Experience designing and consuming REST APIs at scale
Experience with SQL databases, including schema design and query optimization
Proficiency with common front-end tooling such as Yarn, Babel, and Material-UI
Experience with Git in a collaborative, multi-contributor environment
Demonstrated ability to mentor engineers and drive code quality through reviews and design discussions
Proven ability to collaborate across engineering, design, and operational stakeholders
Exceptional problem-solving skills with the ability to navigate ambiguous requirements independently
Strong verbal and written communication skills, including presenting technical concepts to non-technical audiences
Ability to thrive in a fast-paced, mission-driven environment
Active security clearance or ability to obtain one
Must have permanent authorization to work in the United States

Skills

TypeScript
React
C#
MSSQL
InfluxDB
Kafka
Python
Docker
REST
.NET
Git
Yarn
Babel
Material-UI
TanStack Query
CI/CD pipeline integration

Location

Hybrid

Work Type

Hybrid (4 days in office)
Full-time

Experience Level

Senior
6+ years

Education Level

Bachelor's degree in Computer Science or related field

Benefits

Medical insurance
Dental insurance
Vision insurance
PTO
401K

About the Company

York Space Systems was founded to radically improve spacecraft affordability and reliability, transforming, and enabling next- generation space mission operations worldwide.
York is one of the most innovative aerospace companies, specializing in end-to-end customer solutions and the rapid production of spacecraft platforms.
York’s complete Space Segment Solution includes spacecraft production, payload integration, system integration & test, launch services, ground segment services, and mission operations, enabling customers to leverage York’s existing technology solutions to get to orbit rapidly and responsively.

Equal Opportunity

York Space Systems provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, military or protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.
This policy applies to all terms and conditions or employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.
YORK SPACE SYSTEMS IS AN EEO EMPLOYER.