This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description As a Backend Software Engineer supporting Slingshot’s development, you will design and build capabilities that will enable our products to help solve satellite owner-operator problems. You will be a multiplier for the entire engineering team by: - Delivering high-quality code on time - Helping teammates deliver high-quality code - Mentoring and providing support whenever needed Your mission includes: - Executing all position responsibilities in alignment with Slingshot’s core values, mission, and purpose - Working across the technology team interacting with product managers, designers, and other engineers in implementing right-sized solutions - Meeting product requirements in a timely manner while not compromising the operational stability of the overall product - Participating in Agile software development and deployment processes - Providing ongoing support for the services and applications that are critical to our business needs - Communicating methods, findings, and hypotheses with stakeholders - Working on both the frontend and backend to solve problems and deliver value to both internal and external users - Building data platforms/pipelines, microservices, interactions with AI agents and distributed systems - Building and documenting APIs (REST, GraphQL) - Developing advanced data interfaces and interactive user interfaces - Turning architecture ideas into technical specifications that can be executed by anyone on the team Qualifications - 5+ years of experience in software development - 4-year degree in computer science, engineering, or a related field - Active security clearance required; Top Secret preferred - Experience using our stack or similar technologies (Java/Kotlin, GraphQL/GraphQL subscriptions, REST, Docker, Kubernetes, React, Python) - Adept in working with cloud-based deployments (AWS) PaaS and IaaS offerings including some experience with Infrastructure-As-Code solutions - Capable of working with containers and container orchestration (Docker, Kubernetes, Helm, EKS) - Deep working knowledge of version control (Git) and CI/CD tools (GitHub Actions) - Experience with event-driven architectures including Kafka and CloudEvents, data platforms, microservices, and distributed systems - Knowledgeable in database design, performance, and troubleshooting (PostgreSQL, MongoDB) - Skilled in collaborating with data scientists in incorporating AI/ML/LLM into existing software products - Ability to travel up to 10% of the time Requirements - Possess security compliance accreditation such as NIST 800-53, DoD ILs, FedRAMP in higher-classification cloud or air-gapped environments and have experience supporting organizations to obtain accreditation - Experience with software technology startups and product organizations - Knowledge of frontend technologies, specifically React, Three.js - Demonstrated experience working in, or close collaboration with DevOps team members and infrastructure technology - Familiarity with QA practice and collaboration - Track record of supporting predictable software delivery with Product Team partners - Prior Space and Aerospace Industry experience is a bonus but not required - Proficient in integrating complex external systems with APIs - Experience with simulation technologies like HLA/DIS Benefits - Remote work opportunity - Salary range: $150,000-$250,000 - Classification: One-year fixed-term position Company Description Equity, Diversity & Inclusion are key to our success. We are an Equal Opportunity Employer and our employees are people with different strengths, experiences, and backgrounds, who share a passion for creating a safer, more connected world. Diversity not only includes race and gender identity, but also national origin, citizenship, sex, color, veteran status, disability, genetic information, or any other protected characteristic that is part of one’s identity. All of our employees’ points of view are key to our success, and we embrace individuality.

• Maintain and enhance an on-premises Tomcat/Java J2EE product. • Address performance tuning, dependency updates, and security improvements. • Diagnose and resolve Java out-of-memory issues and analyze dump files. • Provide exceptional support to customers in the field, troubleshooting and resolving complex issues. • Collaborate with the team to ensure seamless transition and support for cloud offerings.

• Extend the company’s API stack to include Hyperliquid ecosystem projects and feature set • Collaborate closely with the Expansion PM and other backend engineers to improve integrations, routing, and user flows • Ensure robust, high-quality backend code, focusing on scalability and reliability for same-chain and cross-chain trading • Participate in code reviews, system design, and documentation

• Own architecture decisions for the company's backend systems • Build and operate real-time data pipelines for order book updates, trades, and market events • Design and maintain the API layer (GraphQL, WebSockets) serving web and mobile clients • Work with ClickHouse, PostgreSQL, and Redis to handle high-volume trading data • Optimize query performance, caching, and schema design as data scales • Instrument services with metrics and alerting; participate in on-call rotations • Debug latency issues, memory problems, and system reliability under load • Collaborate with frontend and mobile engineers on serving analytical data via API