Application Engineer Intern

Janus Henderson Investors•Denver, CO

9d•Hybrid

About The Position

This 10-week summer internship runs from May 31 to August 6, 2027. Interns gain first-hand experience through induction, on-the-job learning, skills training and networking. As part of the Application Engineering team, the intern works across business and technology to design, build and ship applications that address real business problems, partnering with stakeholders and engineers to translate business requirements into working features. The intern writes clean, tested code and SQL, works with AI coding assistants and agents while checking their output, and helps automate application build, testing and deployment through CI/CD pipelines and DevOps tooling. The role also includes documenting work, participating in code reviews, and carrying out other duties as assigned. The position is hybrid. The hourly rate is $25.00; candidates are responsible for their own housing and travel expenses. The position may be eligible for an annual discretionary bonus award from the profit pool. Applicants must be full-time students during the internship and authorized to work in the U.S. The role is an internship, and supervisory responsibilities are listed as none.

Requirements

Be a college sophomore or junior pursuing a bachelor's degree or higher in Computer Science, Software Engineering, Computer Engineering, Information Systems or a relevant subject.
Have strong computer science fundamentals, including data structures, algorithms and debugging, and the judgment to review, test and correct code, including AI-generated code.
Understand object-oriented programming concepts and have hands-on coding experience in at least one language such as Java, C#, Python or TypeScript.
Understand SQL and relational database concepts, including joins, aggregations and data modeling.
Demonstrate a builder mindset through projects built and shipped end to end, such as coursework, hackathons, personal or open-source projects.
Have working knowledge of Git and DevOps practices, and a drive to automate how code is built, tested and shipped using CI/CD.
Be eager to learn the business, ask good questions, communicate clearly and turn business requirements into working software.
Have strong attention to detail, test thoroughly, check edge cases and take pride in getting work right.
Have a strong work ethic and sense of ownership, be reliable and follow through on commitments.
Be enrolled as a full-time student at the time of the internship.
Be authorized to work in the U.S.
Internal applicants must inform their current supervisor or manager before applying, be in good standing (performance rating of “met all objectives” or higher), not be on a performance improvement plan or written warning, and have been in their current role for at least six months unless an early transfer is approved by their leader and the People Department.

Nice To Haves

Hands-on experience building CI/CD pipelines or build automation with tools such as GitHub Actions or Azure DevOps.
Experience building with AI coding assistants or agents, such as GitHub Copilot, while reviewing and testing their output.
Experience writing automated tests, such as unit or integration tests.
Exposure to cloud platforms such as Azure or AWS, containers such as Docker, or REST APIs and integrations.
A GitHub profile or portfolio of personal projects.
Interest in financial services or a basic understanding of financial instruments and the trade life cycle.

Responsibilities

Work across business and technology to design, build and ship applications that solve business problems.
Learn how the business works and partner with stakeholders and engineers to turn business requirements into working features.
Write clean, tested code and SQL, working alongside AI coding assistants and agents and verifying their output.
Help automate how applications are built, tested and deployed using CI/CD pipelines and DevOps tooling.
Document work and take part in code reviews to learn and apply engineering best practices.
Carry out other duties as assigned.

Benefits

Hybrid working and reasonable accommodations.
Generous holiday policies.
Health and wellbeing benefits, including corporate membership to Wellhub.
Paid volunteer time.
Professional development courses and tuition or qualification reimbursement.
Maternal and paternal leave benefits and family services.
Employee events and programs, including a 14er challenge.
Complimentary beverages and snacks, and employee happy hours.
Mentoring, leadership development programs, regular training, career development services and continuing education courses.
Potential eligibility for an annual discretionary bonus award from the profit pool.
Pension and retirement plans, and health, wellbeing and lifestyle benefits.