Software Engineer Intern

Phonely · San Francisco

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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

• Investigate and troubleshoot real customer issues across frontend and backend systems

• Work closely with customers and internal teams to diagnose bugs, performance bottlenecks, and reliability problems

• Build internal tooling and dashboards to improve debugging, monitoring, and operational workflows

• Help monitor production systems and support incident response efforts

• Assist engineers in identifying root causes and shipping fixes quickly

• Build and maintain components for high-performance web applications using React and Next.js

• Collaborate with engineers to integrate APIs, real-time systems, and observability tooling

• Improve UI/UX by building responsive and user-friendly interfaces

• Support performance optimization efforts across rendering, caching, and latency

• Write clean, maintainable, and well-documented code

• Participate in code reviews, team discussions, and product development

Qualifications

• Currently pursuing or recently completed a degree in Computer Science or related field

• Experience with JavaScript/TypeScript and modern frontend frameworks (React preferred)

• Familiarity with Next.js or willingness to learn quickly

• Strong problem-solving and debugging skills

• Comfortable investigating technical issues and working through ambiguous problems

• Basic understanding of APIs, async programming, and web fundamentals

• Exposure to full-stack development through projects, coursework, or internships

• Strong communication skills and ability to work directly with customers and teammates

• Eagerness to learn quickly in a fast-paced environment

Nice to Have

• Experience with backend development (Python or Node.js)

• Familiarity with cloud platforms (AWS, GCP)

• Experience with observability or monitoring tools

• Familiarity with databases (Firebase, Supabase, or similar)

• Interest in AI, real-time systems, infrastructure, or voice technologies

What You’ll Gain

• Real-world experience debugging and operating production systems

• Hands-on exposure to customer-facing engineering and issue investigation

• Mentorship from experienced engineers

• Experience working with modern infrastructure, observability, and AI systems

• Opportunity to make meaningful contributions to a fast-growing company

Our Tech Stack

• Frontend: React, Next.js, TypeScript

• Backend: Python, microservices, async systems

• Cloud & Infra: AWS, GCP, Kubernetes, Redis

• Databases: Firebase, Supabase

• Observability: Datadog, logging, metrics, tracing

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