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Full Stack Developer Intern
Walrus Security. Work as part of Walrus’s core team on its flagship B2B payment verification product, DoubleCheck .
Posted 10/22/2026internshipNew York City • New York • United StatesEntry Level💰 $75,000 - $110,000 per yearWebsite
Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in designing and building web applications, with a focus on payment verification and authentication solutions. Strong written communication skills and a collaborative mindset are essential for contributing to a supportive team environment.
Highest-signal resume keywords
Web Application DevelopmentPayment Verification SolutionsAuthentication Flow ImplementationRelational Database DesignCloud Infrastructure Deployment
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
Web Development Best PracticesData Model DesignSecure API ImplementationPerformance ProfilingDebugging Techniques
Soft Skills
Strong Written CommunicationCuriosity and Willingness to LearnCollaboration
Tools & Technologies
Testing ToolsModern UI FrameworksCloud Infrastructure
Industry Keywords
B2B PaymentsSoftware Development StandardsEarly-Stage Company
Tech Stack
Tools & technologiesCloudSpring
About the role
Key responsibilities & impact- Work as part of Walrus’s core team on its flagship B2B payment verification product, DoubleCheck
- Design, build, and own new modules, including payments, reputation, and new kinds of authentication
- Design and innovate solutions to difficult software problems
- Write substantial amounts of code
- Help establish software development standards and culture at an early-stage company
- Collaborate with colleagues to build an energizing and supportive workplace
- Work closely with the leadership team
Requirements
What you’ll need- Graduating in December 2027, anytime in 2028, or spring 2029
- Undergraduate degree in computer science, math, physics, or electrical engineering
- Experienced with tools for testing
- Curious and interested in teaching and learning from colleagues
- Strong written communication
- Applicants must be authorized to work for any employer in the U.S.
- Internship or co-op experience designing, building, and deploying sophisticated web applications (optional)
- Experience with modern UI frameworks, web standards, and web development best practices (optional)
- Detailed understanding of data model design for relational databases (optional)
- Experience using cloud infrastructure to deploy reliable and scalable web applications (optional)
- Experience building authentication flows and/or implementing secure APIs (optional)
- Experience building or using tools for data analysis, performance profiling, and debugging (optional)
Benefits
Comp & perks- Remote work is welcomed
- Competitive compensation and benefits for full-time permanent employees
- Equity for full-time permanent employees
- Paid medical insurance for full-time permanent employees
- Dental insurance for full-time permanent employees
- Vision insurance for full-time permanent employees
- Company contribution to wellness for full-time permanent employees
- Coverage for dependents for full-time permanent employees
- Parental leave for full-time permanent employees
- Retirement benefits for full-time permanent employees
- Relocation assistance for full-time permanent employees
- Unlimited PTO for full-time permanent employees
- Extensive growth within the company
- Collaboration, ownership, and mentoring culture