Overview
Software Engineer Intern at Phonely — San Francisco, California. Software Engineer Internship This is a high-impact internship where you’ll write real code, ship features, and see your work in production. Note: This is an in-office role, 5 days a week in San Francisco.
Complete internship details
Software Engineer Internship This is a high-impact internship where you’ll write real code, ship features, and see your work in production. Note: This is an in-office role, 5 days a week in San Francisco. What You’ll Do
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Investigate and troubleshoot real customer issues across frontend and backend systems
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Work closely with customers and internal teams to diagnose bugs, performance bottlenecks, and reliability problems
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Build internal tooling and dashboards to improve debugging, monitoring, and operational workflows
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Help monitor production systems and support incident response efforts
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Assist engineers in identifying root causes and shipping fixes quickly
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Build and maintain components for high-performance web applications using React and Next.js
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Collaborate with engineers to integrate APIs, real-time systems, and observability tooling
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Improve UI/UX by building responsive and user-friendly interfaces
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Support performance optimization efforts across rendering, caching, and latency
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Write clean, maintainable, and well-documented code
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Participate in code reviews, team discussions, and product development
Qualifications
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Currently pursuing or recently completed a degree in Computer Science or related field
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Experience with JavaScript/TypeScript and modern frontend frameworks (React preferred)
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Familiarity with Next.js or willingness to learn quickly
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Strong problem-solving and debugging skills
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Comfortable investigating technical issues and working through ambiguous problems
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Basic understanding of APIs, async programming, and web fundamentals
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Exposure to full-stack development through projects, coursework, or internships
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Strong communication skills and ability to work directly with customers and teammates
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Eagerness to learn quickly in a fast-paced environment
Nice to Have
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Experience with backend development (Python or Node.js)
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Familiarity with cloud platforms (AWS, GCP)
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Experience with observability or monitoring tools
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Familiarity with databases (Firebase, Supabase, or similar)
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Interest in AI, real-time systems, infrastructure, or voice technologies
What You’ll Gain
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Real-world experience debugging and operating production systems
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Hands-on exposure to customer-facing engineering and issue investigation
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Mentorship from experienced engineers
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Experience working with modern infrastructure, observability, and AI systems
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Opportunity to make meaningful contributions to a fast-growing company
Our Tech Stack
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Frontend: React, Next.js, TypeScript
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Backend: Python, microservices, async systems
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Cloud & Infra: AWS, GCP, Kubernetes, Redis
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Databases: Firebase, Supabase
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Observability: Datadog, logging, metrics, tracing
Tips for this internship
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Verification notes
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