Johns Hopkins University Applied Physics Laboratory

Critical Contributions to Critical Challenges

For more than 80 years, the Johns Hopkins University Applied Physics Laboratory (APL) has provided critical contributions to critical challenges with systems engineering and integration, technology research and development, and analysis. Our scientists, engineers, and analysts serve as trusted advisors and technical experts to the government, ensuring the reliability of complex technologies that safeguard our nation’s security and advance the frontiers of space. We also maintain independent research and development programs that pioneer and explore emerging technologies and concepts to address future national priorities.

Built for Success

APL’s organizational structure breaks down into four sectors, two technical departments, and five enterprise service departments. The sectors — Air and Missile Defense, Asymmetric Operations, Force Projection, and Space Exploration — are devoted to critical work sponsored by government agencies. Ten of APL’s 12 mission areas reside in these sectors.

APL’s two technical departments — National Security Analysis and Research and Exploratory Development—focus on work that brings together multidisciplinary teams of talented researchers. Each technical department has one mission area.

Our five enterprise service departments — Business, Construction, and Facilities; Communications; Information Technology Services; Security Services; and Talent Services — provide the daily infrastructure and expertise to support the Laboratory’s staff.

Where Challenging Work Meets a Rewarding Career

We come together to tackle some of the world’s most challenging problems and create innovative solutions for our sponsors’ needs. At APL, our work impacts a wide range of industries; from national security and civil space to health care and cybersecurity, we are truly on the cutting edge of science.

Learn More on APL's Website

Founded on March 10, 1942 — just three months after the United States entered World War II — APL was created as part of a federal government effort to mobilize scientific resources to address wartime challenges.

APL was assigned the task of finding a more effective way for ships to defend themselves against enemy air attacks. The Laboratory designed, built, and tested a radar proximity fuze (known as the VT fuze) that significantly increased the effectiveness of anti-aircraft shells in the Pacific — and, later, ground artillery during the invasion of Europe. The product of the Laboratory’s intense development effort was later judged to be, along with the atomic bomb and radar, one of the three most valuable technology developments of the war.

On the basis of that successful collaboration, the government, The Johns Hopkins University, and APL made a commitment to continue their strategic relationship. The Laboratory rapidly became a major contributor to advances in guided missiles and submarine technologies. Today, more than seven decades later, the Laboratory’s numerous and diverse achievements continue to strengthen our nation.

APL continues to relentlessly pursue the mission it has followed since its first day: to make critical contributions to critical challenges for our nation.

Learn more about APL's 80th anniversary and view a timeline of the Lab's 80 years.

APL is committed to fostering a positive, diverse, and inclusive culture. We are developing technologies that protect our nation and expand the frontiers of science. We are passionate about solving complex challenges. APLers enjoy lifelong learning and having an impact, and we value a positive work environment that promotes diversity and encourages inclusion, equity, and collaboration. Only by leveraging all of our strengths collectively can we solve these complex problems.

Diverse voices lead to bold solutions. Diverse and inclusive teams are stronger and more successful, and individuals thrive in a culture of equity, openness, and belonging.

Learn more about APL's commitment to D&I. 

Industry-Leading Education Assistance

We’ll pay your tuition for up to 24 credit hours per academic year for a relevant degree or part-time coursework. Staff members in part-time doctoral programs are eligible for 200 hours of paid leave per year while in the dissertation phase, for up to three years. The Johns Hopkins Whiting School of Engineering also offers convenient on-site classes.

A Robust Retirement Plan

The 10.5% includes a foundational APL contribution of 2.5% of your pay, plus matching contributions of $2 for every $1 of staff member contributions, up to a maximum of 8% of your pay.

A Career of Balance

Enhancing your well-being is a foundational element of our culture. Participate in staff-led guided meditation, or take a yoga class on the Central Green. Walk with your coworkers around campus on our Wellness Walking Circuits, or grab lunch and sit at one of our outdoor seating areas.

Investing in the Future

A merit-based program available after five years of employment, the APL Dependent Scholarship is a great way for your child to earn their undergraduate degree at regionally or nationally accredited institutions. We believe education is one of the most worthwhile investments we can make, and we’re happy to play a part in creating the leaders of tomorrow.

Learn more on APL's Total Rewards page.

From day one, APL gives you the opportunity to use the skills you’ve gained at school to push the boundaries of science and technology. We provide you with a strong support system of dedicated coworkers and opportunities to work on projects that truly mean something. When you join us as an intern, our goal is to give you the tools and resources that allow you to shape the career of your dreams. 

APL College Intern Program

Join us for a summer internship experience like no other. At APL, your internship will bring you together with students from all over the country to work on real-world problems and learn from some of the top minds in your field. If you’re passionate about solving complex challenges and want to have a direct impact, we hope you’ll join us. The majority of our internships are in technical fields. We have a few business internship opportunities.

ATLAS Intern Program

Our APL Technology Leadership Scholars (ATLAS) summer intern program partners with Historically Black Colleges and Universities (HBCUs), Hispanic-Serving Institutions (HSIs), and Tribal Colleges and Universities (TCUs) to connect STEM students with our technical challenges. You will have the opportunity to work on projects alongside experts in your field and attend professional development workshops that focus on giving presentations, interview skills, resume writing, and more.

RISE@APL Intern Program

The RISE@APL program is for Johns Hopkins University students majoring in engineering, computer science, applied mathematics, or physics who want to better prepare for a technical career. As a part of RISE@APL, you’ll work alongside experts in your field, focus on professional development, and make critical contributions to our mission.

ASPIRE High School Intern Program

If you’re a high school junior or senior who wants to see real-world-applications of what you’re learning in school while getting hands-on experience, check out our ASPIRE High School Intern Program.

Learn more on APL's internship page.