About Castelion
Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We’re designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.
Software & Web Development Intern (Onsite role based in Allen, TX)
Castelion is building next-generation hypersonic missile systems to bring peace through deterrence. As we rapidly develop and scale, we are seeking a highly motivated Software & Web Development Intern to support our software and infrastructure efforts. This role provides an opportunity to work on real-world engineering challenges, collaborating closely with our engineering and operations teams.
Responsibilities
Basic Qualifications
Leadership Qualities
Bias to Action and Creative Problem Solving . Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.
High Commitment, High Initiative . A successful candidate will have a genuine passion for Castelion’s mission and consistently look for ways to contribute to the company’s technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.
Clear Communicator . Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.
ITAR Requirements:
Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.
...growing. We invest in our people. We care and make a positive difference. Summary: Part of a team of tax, financial, and legal professionals that provide consultation to advisors, and design plans and implement solutions for clients with complex planning needs....
...Southwestern Advantage is seeking college students from all majors for a paid summer work/internship position. This is an outside sales internship where students will learn how to run their own business and be effective in creating relationships with consumers. Students...
Encova Insurance will have a need for an Intern, Actuarial for our Charleston, WV office location. This is a full-time summer internship for summer 2025 and will require someone who can work at least 40 hours per week. Start and end dates will be based on availability and...
...preferred. Minimum Work Experience Knowledge of health and fitness and at least one year of work experience in wellness, health... ...BLS Certification required within 30 days of hire Personal Trainer: Current certification in Personal Training required (i.e. ACSM...
...Why You Want to Work Here Join a dynamic team that promotes economic growth and innovation! As a Market Intelligence Coordinator , you'll play a key role in researching businesses, managing data, and supporting outreach effortsall while contributing to a thriving...