JOBSEARCHER

Principal Software Engineer

SedaroArlington, VAApril 12th, 2026
Description Join Sedaro as an early and critical team member as we develop the world’s first digital twin platform for complex systems. Sedaro is hiring Software Engineers to help achieve our mission of building infinitely scalable space system simulation software in the cloud. The ideal candidate will have proven experience building and delivering cloud-native, distributed systems and understands how to write highly scalable software. The Software Engineer has a thoughtful approach to decision-making; knowing when to move fast and when to be thorough. This position will celebrate autonomy, the ability to give and receive constructive feedback, and a strong ability to meet tight deadlines. They are motivated to own a project from start to finish, and can understand the big picture as well as how it fits within all aspects of the business. This person is experienced with many leading programming languages and frameworks, and is able to write clean and maintainable code. About Sedaro Sedaro is an exceptionally stable venture-backed startup pushing the boundaries of distributed system design and operations in aerospace and beyond. Our product is a platform-as-a-service that enables our customers to rapidly develop and operate complex hardware systems, reducing costs, closing gaps, and overcoming bias, security, and privacy issues. Key capabilities Own the architecture, design, implementation, testing, and deployment of a segment of the system and maintain a stable server environment Own the cloud-based application architecture that utilizes parallel distributed simulation Routinely inspect server code for speed optimization and conceptualize and implement solutions for efficient data storage, access, processing, and visualization Write unit, functional, and integration tests for the services and features you add, as well as find and adopt new ones to further increase maintainability and velocity Support bug fixes and feature development Participate in design iterations providing engineering feedback for product specs Keep up-to-date with industry and language best practices to suggest potential improvements to our existing code base Create and oversee testing schedules to optimize user interface and experience, ensuring optimal display on various browsers and devices You will thrive in this position if you Have experience architecting cloud-scalable infrastructure Have a large capacity for attention to detail and a strong ability to meet tight deadlines Enjoy solving highly complex problems related to web applications and parallel-distributed systems Are self-motivated and driven, with the ability to work independently Are motivated by the opportunity to own a project from start to finish Appreciate the big picture and are eager to understand how your work fits within and affects the overall business Are smart and innovative, with the ability to think outside the box Have a genuine appreciation for early-stage startup culture Who you'll work with A humble team who appreciates the value of different opinions Team members with backgrounds in web development, hardware design, and UI/UX. We leverage different skill sets to approach problems from many angles, but keep the customer experience as our #1 priority We aim to have fun and build a product that excites and enables our customers Requirements 10+ years of experience developing cloud-native software 10+ years of experience as an individual contributor using some of the following: Python Rust TypeScript/Javascript NodeJS React Kubernetes Terraform Familiarity with writing and implementing unit tests Consume multiple service APIs Experience with analytics, testing, and crash reporting Experience with Docker, Kubernetes, gRPC, and REST APIs Bachelor’s degree in CS or similar Preferred Master’s degree or higher in CS or similar Experience developing gaming engines such as Unity or Unreal Experience architecting and maintaining CI/CD pipelines Experience with AI/ML and natural language processing Benefits Equity Unlimited PTO 401K with 4% match 100% premium payment for Medical Insurance Parental Leave Flexible work schedule with core hours Company provided lunches 2 days a week Industry-leading career development opportunities Work Location In-person if located in the Washington, D.C., and northern Virginia area Hybrid, remote available for the right candidate US Citizen or permanent resident status required