Software Engineer Intern - Fall 2026

Astranis develops advanced satellites for high orbits, expanding access to secure and reliable networks for a wide range of clients, including corporations, government agencies, and the US military. With five satellites in orbit and a robust pipeline of future launches, Astranis is working through a commercial contract backlog exceeding $1 billion. The company is backed by over $750 million in investments from firms such as Andreessen Horowitz, Blackrock, and Fidelity, and operates from a 153,000 sq. ft. headquarters in Northern California with a team of 450 engineers and specialists. Internship Overview This paid, hourly internship runs for twelve weeks and is designed for students enrolled in four-year universities. Interns at Astranis tackle real engineering challenges and contribute directly to projects with meaningful impact. Many previous interns have helped design and test hardware and software that reached orbit, and several have moved into full-time roles after graduation. Candidates who have already completed a four-year degree should consider applying for Associate Engineer positions instead. What you will do Work with the engineering team to design, develop, and test software for embedded systems on satellites. Support ground control and testing applications through software development and collaboration. Requirements Enrollment in a four-year university program during the internship period.

Astranis builds advanced high-orbit satellites that support secure communication networks for clients ranging from major corporations to government and military organizations worldwide. With five satellites launched and a commercial contract pipeline exceeding $1 billion, the company continues to expand its impact in satellite technology. Astranis has secured over $750 million in investment from firms such as Andreessen Horowitz, Blackrock, and Fidelity. The San Francisco headquarters houses a team of 450 engineers in a 153,000-square-foot facility. Role overview The Flight Software Associate program is a twelve-week position for recent graduates and graduate students from accredited four-year universities. This role offers hands-on experience working on complex satellite projects. Many associates have contributed to both hardware and software design and testing, with several moving into full-time roles after the program. What you will do Work closely with the engineering team to design, develop, and test embedded software for satellites. Support the creation and testing of ground control and related applications.

Join Sierra as an Intern in Agent Development for the Fall 2026 semester! This is an exciting opportunity to gain hands-on experience in a dynamic and innovative environment. As an intern, you will collaborate with our talented team to support various projects aimed at enhancing agent performance and development strategies.

Join aisafety as a Research Engineer Intern for the Fall 2026 term! This internship is an excellent opportunity to gain hands-on experience in the field of safety engineering, where you will collaborate with seasoned professionals on innovative projects. You will be involved in research and development activities, contributing to advancements in safety solutions.

About Poseidon Aerospace:Poseidon Aerospace specializes in the design and operation of unmanned aerial vehicles for commercial logistics and defense applications. Our flagship full-size fixed-wing platforms, the Heron seaplane and the Egret STOL aircraft, are capable of transporting two tons of payload over distances exceeding a thousand nautical miles. With our headquarters in San Francisco and additional offices in Washington, DC, and Maine, we are at the forefront of aviation innovation.As a Flight Software Engineer at Poseidon Aerospace, you will play a crucial role in the development and maintenance of cutting-edge autonomous flight software that ensures safe, efficient, and reliable operations for our aircraft. This position requires expertise in navigation, control algorithms, and real-time decision-making systems. We seek a candidate who thrives in fast-paced environments and has a passion for advancing aviation technology.

Join Handshake as a Student Researcher for the Fall 2026 semester! This exciting role offers you the chance to contribute to innovative research projects while gaining valuable experience in a dynamic environment. As a Student Researcher, you will work closely with leading professionals, enhance your analytical skills, and immerse yourself in real-world applications of your studies.

Astranis is at the forefront of satellite technology, crafting advanced satellites that extend humanity’s reach into the solar system. Our satellites are designed to deliver dedicated and secure networks to a diverse range of clients, including large enterprises, governmental bodies, and the U.S. military. With five satellites successfully launched and a robust pipeline of more than $1 billion in commercial contracts, we are poised for significant growth.As a trusted partner in satellite communications, we cater to clients who demand high standards for uptime, data security, and network customization. Our impressive funding of over $750 million from top-tier investors like Andreessen Horowitz, Blackrock, and Fidelity allows us to employ a dedicated team of 450 innovative engineers and entrepreneurs at our state-of-the-art 153,000 sq. ft. headquarters in Northern California, USA.Backend Software Engineer Intern - Summer 2026Join our Platform team as a Software Engineer Intern, where you will design and develop services that autonomously control satellites, monitor telemetry for anomalies, and provide real-time situational awareness to ensure the safety and connectivity of our fleet. Your work will also encompass building critical components and services that empower our software organization, enabling all teams to operate more swiftly and reliably.This internship presents an exciting opportunity to contribute to both our commercial and U.S. government initiatives. Internships at Astranis typically last for twelve weeks and are tailored for students currently enrolled in a four-year university program. If you have already graduated, we invite you to apply for our Associate Engineer positions.

Join Cloudflare as a Software Engineer Intern for Summer 2026 and embark on an exciting journey into the world of technology and innovation. As part of our dynamic team, you will have the opportunity to work on impactful projects, collaborate with experienced engineers, and gain hands-on experience in software development.

Astranis builds advanced satellites for high orbits, expanding access to secure and dedicated networks for clients such as large enterprises, governments, and the US military. With five satellites in orbit and more launches ahead, Astranis supports a commercial contract backlog exceeding $1 billion. The company is headquartered in Northern California and employs 450 engineers and entrepreneurs, backed by over $750 million from investors like Andreessen Horowitz, Blackrock, and Fidelity. The Associate Mechanical Engineer - Fall 2026 Program is a twelve-week, salaried role based in San Francisco. This program is designed for candidates who have completed or will complete their bachelor’s degree before joining. The position offers the chance to work on projects that match the complexity and impact of those assigned to full-time engineers. Role overview Work alongside the engineering team to design, build, and test satellite hardware or software. What you will do Associate Engineers at Astranis contribute directly to challenging engineering projects. Past participants have designed and tested hardware or software for the company’s first satellite. Many have continued on to full-time roles. This program emphasizes hands-on experience and meaningful project ownership. Requirements Bachelor’s degree completed or expected before the program start date Interest in satellite hardware or software engineering Note: Current college students should consider applying for the Astranis Internship program instead.

ABOUT US:At Astro Mechanica, we're pioneering the future of aerospace with a commitment to making high-speed flight a reality for everyone. Our vision is to democratize supersonic travel, ensuring it is flexible, accessible, and sustainable. We are integrating cutting-edge airframe and engine technologies—including our proprietary Duality™ dual-use propulsion system—into a revolutionary flight operations model, aiming to make supersonic transport as economical as today's commercial flights. In the short term, we are focused on developing adaptable, high-speed systems to address aircraft performance needs for the United States government.WHO WE ARE:We are a dynamic team of engineers driven by a shared passion for aerospace innovation. Our flat organizational structure fosters collaboration, allowing us to harness our diverse skills to build efficient and effective solutions. Our ethos emphasizes speed, pragmatism, and the pursuit of engineering excellence.WHO YOU ARE:Astro Mechanica is looking for a Flight Software Engineer to become an integral part of our innovative team. The ideal candidate will be eager to design and develop software that governs the operation of our aircraft. You will have the chance to architect a comprehensive software stack encompassing applications, operating systems, networking, and firmware. Collaborating closely with your colleagues, you will define requirements and contribute to the overall software scope. Your role will be fast-paced and impactful, contributing directly to our mission.WHAT YOU’LL DO:Design and implement robust flight software to control aircraft, under the guidance of senior engineers.Contribute to the development of simulation and infrastructure tools for validating flight systems.Assist in the integration of software with embedded hardware and real-time systems.Produce clean, testable, and maintainable code, including comprehensive unit and integration tests.Work in close collaboration with mechanical, electrical, propulsion, and controls engineers to refine aircraft systems.Debug issues across all software layers, from application-level behavior to system interfaces.

Join Planet Labs PBC as a Flight Software Engineer, where you will play a critical role in developing innovative software solutions for our satellite systems. You will collaborate with a talented team of engineers to design, implement, and optimize software that powers our fleet of satellites, ensuring they operate effectively and efficiently in space.Your work will directly impact our mission to provide global monitoring through satellite imagery. If you are passionate about aerospace technology and want to contribute to cutting-edge projects, we want to hear from you!

ABOUT US:Astro Mechanica is a pioneering aerospace company dedicated to shaping a faster and more interconnected future. Our vision is to democratize high-speed flight, making supersonic travel flexible, accessible, and sustainable. We envision a world where rapid, on-demand, point-to-point global mobility becomes the norm for transporting people and goods across the globe. To realize this goal, we are seamlessly integrating our advanced airframe and engine technologies—featuring Duality™, our proprietary dual-use propulsion system—with an innovative flight operations model, making supersonic transport as efficient and economical as conventional commercial air travel. In the short term, we are focused on developing versatile, high-speed systems to address aircraft performance gaps for the United States government.WHO WE ARE:We are a team of enthusiastic engineers committed to pushing the boundaries of aerospace innovation. Our team comprises generalists with specialized expertise, all driven by a flat organizational structure and a shared passion for creating effective solutions. We prioritize speed, practicality, and allow engineering excellence to take precedence over hierarchy.WHO YOU ARE:As a software engineer, you excel at creating robust engineering tools that have a direct influence on hardware design. You thrive at the intersection of software and mechanical engineering, collaborating effectively with structural, loads, and aerodynamic teams to convert complex physics into scalable, reliable code. You think systemically, prioritize performance and usability, and take pride in crafting clean, well-structured Python code that engineers rely on for critical design decisions. You are driven by challenging technical problems—whether it’s implementing aeroelastic solution sequences, developing composite stress analysis tools, or designing databases that render complex loads data accessible and actionable.WHAT YOU’LL DO:You will collaborate closely with system owners across loads, flight dynamics, and structures to design and develop the internal software framework that facilitates multidisciplinary design optimization throughout the aircraft lifecycle. Your tools will fundamentally influence how we analyze, iterate, and finalize flight-ready hardware.Develop and maintain Python-based stress analysis templates, incorporating composite plate buckling, classical laminate theory (CLT), and composite failure theory implementations.Create and manage a scalable loads database system that ensures easy access to loads analysis data for stress analysts and design engineers.

Join Taekus, an innovative fintech and travel startup, as we redefine the premium financial services landscape. With a remarkable annual revenue of $70M and exciting new partnerships with carriers, we are poised for substantial growth, particularly in our loyalty engine.We are on the lookout for a talented Software Engineer with expertise in flight routing and booking systems. As part of our Flights & Loyalty team, you will collaborate closely with our aviation loyalty specialist to enhance our flight search and booking capabilities.Seize the chance to be part of a $3.2 trillion market opportunity and innovate in the super-premium segment of rewards credit cards.Interview Process:Candidates should be prepared to travel for an onsite interview in San Francisco, New York, Chicago, or Austin. All travel expenses will be covered by Taekus.Your Responsibilities:Lead the delivery of core features by managing major releases across the entire flight booking process, from search to booking creation and fulfillment.Develop the logic for award ticket pricing and facilitate point transfers to our partners.Integrate with external airlines and GDS partners, navigating complex communication protocols and data schemas.What You Bring:A minimum of 6 years of engineering experience, with a strong focus on production-grade Python development.Familiarity with GDS systems like Amadeus or Sabre.Proficient in: Python/Django, TypeScript, React, PostgreSQL, and AWS.A passion for credit card points and travel hacking, with personal experience booking flights using points.Experience building flight inventory scrapers, managing multiple credit cards, and engaging with FlyerTalk is a bonus.This Role Is Perfect For You If:You thrive in a rapidly scaling startup and are eager to contribute to foundational projects.You enjoy making a significant impact through your work.Travel is a core part of your life, and you want to channel that passion into your career.You excel in a dynamic environment and relish the challenge of growth.

Join Cloudflare as a Software Engineer Intern for the Summer of 2026! This is an exciting opportunity to gain hands-on experience in the tech industry, working alongside our talented engineers. You will contribute to meaningful projects, collaborate with cross-functional teams, and develop your skills in a dynamic and innovative environment.

About Atomic SemiAtomic Semi is pioneering a compact and rapid semiconductor fabrication facility. Our goal is to harness today’s technology to build innovative solutions with streamlined processes. We are committed to creating our own tools to facilitate swift iterations and enhancements.We are assembling a small team of exceptional, hands-on engineers across various disciplines, including mechanical, electrical, hardware, computer, and process engineering. Our team will take ownership from atomic-level designs to complete architectural solutions. We are optimistic about the future and eager to push the boundaries of technology.We believe that smaller, faster, and self-built solutions are superior. Our lab is equipped with advanced tools such as 3D printers, a variety of microscopes, e-beam writers, and general fabrication equipment, and we are ready to invent whatever is missing along the way.Atomic was founded by Sam Zeloof and Jim Keller. Sam is renowned for his garage-made chips, while Jim brings over 40 years of leadership experience in the semiconductor industry.About the RoleWe are seeking an Automation Software Engineering Intern for the upcoming fall semester, starting in September. We prefer a commitment of 4 to 8 months. As part of an integrated engineering team, you will engage in building semiconductor fabrication equipment, tackling intriguing engineering challenges.Our small size enables interns to undertake significant responsibilities, contributing to mission-critical projects. You will enjoy substantial autonomy on interdisciplinary initiatives that enhance our semiconductor fabrication processes and improve robot efficiency. Ideal candidates should have a background in motor controllers, path planning, and trajectory control.We prioritize rapid prototyping and testing—aiming to build and verify solutions within days or weeks, not months. Therefore, a portfolio showcasing your work (such as a GitHub link) is required to apply, demonstrating your software engineering skills and curiosity.

Astranis Space Technologies Corp. develops advanced satellites for high orbits, supporting secure networks for enterprises, governments, and the U.S. military. With five satellites already in orbit and a significant commercial backlog, the company continues to expand its presence in satellite communications. The team, based in a 153,000 square foot headquarters in Northern California, includes 450 engineers and entrepreneurs working on end-to-end satellite design, build, and operations. The Antenna Intern position for Fall 2026 is a twelve-week, hourly internship designed for students enrolled in a four-year university program. This role centers on hands-on collaboration with engineers from mechanical, thermal, and payload systems to advance antenna technology for current and future satellite payloads. What you will do Use advanced design tools to develop communications antenna systems that can adapt to changing on-orbit conditions and customer requirements. Work with vendors to design and source RF and antenna components, then verify their performance through detailed anechoic chamber testing. Partner with teams across Mechanical, Structural, Thermal, and Payload Systems to co-design antenna components and systems. Internship details Internships are structured as twelve-week hourly roles. Open to students currently enrolled in a four-year university program.

Kickstart your career with a summer internship at Cloudflare, a leader in web performance and security. As an Internal Audit Intern, you will gain invaluable hands-on experience in auditing processes and risk management while working closely with our dynamic audit team. This position is designed for students who are eager to learn and make a significant impact in a fast-paced environment.

Join Cloudflare as a Sales Intern for Summer 2026 and gain invaluable experience in one of the leading tech companies in the world. You will collaborate with seasoned professionals, engage with clients, and contribute to innovative solutions that enhance internet security and performance.

Astranis is at the forefront of revolutionizing satellite technology, developing advanced satellites for high orbits that expand humanity’s reach into the solar system. Our satellites deliver dedicated, secure networks to sophisticated clients globally, including large enterprises, sovereign governments, and the US military. With five satellites successfully on orbit and many more set for imminent launch, we are addressing a robust backlog of over $1 billion in commercial contracts.Astranis is the go-to satellite communications partner for clients demanding exceptional uptime, data security, network visibility, and tailored solutions. Backed by over $750 million from premier investors, including Andreessen Horowitz, Blackrock, and Fidelity, our team of 450 skilled engineers and entrepreneurs operates from our expansive 153,000 sq. ft. headquarters in Northern California.Flight Software Engineer As a Flight Software Engineer, you will play a crucial role in the development, execution, and implementation of flight software that commands and monitors our spacecraft. You will collaborate with cross-functional teams to ensure seamless integration of the software with hardware systems.