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Junior Frontend Developer Intern Jobs in Renton, WA

... systems, and mentor junior engineers while collaborating with cross-functional teams ... and front-end architecture • Collaborate with cross-functional teams to develop end-to-end ...

Provide mentorship to junior team members, fostering a culture of continuous learning and ... Stay abreast of emerging frontend and backend technologies, make strategic architectural decisions ...

YF Intern

Seattle, WA · On-site

$21.30/hr

... youth programming to a new level. We are a leader in youth development, providing a safe ... All trainings are located at the Rainier Vista Boys & Girls Club @ 4520 Martin Luther King Jr. Way ...

Tribal Partnerships Intern

Seattle, WA · On-site

$22.01 - $27.90/hr

... programming, including regional alignment workshops and convenings focused on climate resilience ... Martin Luther King, Jr., is a diverse and vibrant community that represents cultures from around ...

Ensure seamless integration between frontend and backend components Write clean maintainable and ... Mentor junior developers and provide technical guidance within the team Participate in agile ...

Climate & Communities Intern

Seattle, WA · On-site

$24.77 - $84/hr

... programming, including regional alignment workshops and convenings focused on key climate ... Martin Luther King, Jr., is a diverse and vibrant community that represents cultures from around ...

Mentors and supports junior developers through technical guidance, code reviews, and structured ... Technical Expertise - Front End Development * Strong proficiency in HTML, CSS, and JavaScript.

Mentors and supports junior developers through technical guidance, code reviews, and structured ... Technical Expertise - Front End Development * Strong proficiency in HTML, CSS, and JavaScript.

Principal, Software Engineer

Bellevue, WA · On-site

$152K - $204K/yr

In addition to these technical duties, you will provide mentorship to junior engineers, fostering ... Our tech stack includes Java for backend services and ReactJS for frontend development,providingan ...

In addition to these technical duties, you will provide mentorship to junior engineers, fostering ... Our tech stack includes Java for backend services and ReactJS for frontend development,providingan ...

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How much do junior frontend developer intern jobs pay per hour?

As of Jun 28, 2026, the average hourly pay for junior frontend developer intern in Renton, WA is $25.75, according to ZipRecruiter salary data. Most workers in this role earn between $20.82 and $27.31 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Junior Frontend Developer Intern, and why are they important?

To thrive as a Junior Frontend Developer Intern, you need a solid understanding of HTML, CSS, JavaScript, and a foundational grasp of responsive web design, often supported by coursework or relevant project experience. Familiarity with frameworks like React or Vue.js, version control systems such as Git, and basic use of developer tools in browsers is typically expected. Strong problem-solving skills, attention to detail, eagerness to learn, and effective communication help you stand out in this role. These skills and qualities enable you to contribute to real-world projects, collaborate with teams, and quickly adapt to evolving technologies.

What are some common challenges faced by Junior Frontend Developer Interns during their internship, and how can they overcome them?

Junior Frontend Developer Interns often encounter challenges such as adapting to new frameworks, understanding existing codebases, and managing their time effectively while learning on the job. Collaborating with more experienced developers and actively seeking feedback can help interns accelerate their learning. It's also important to make use of documentation and online resources, and not hesitate to ask questions when stuck. Regular communication with team members and participating in code reviews can provide valuable insights and foster professional growth.

What does a Junior Frontend Developer Intern do?

A Junior Frontend Developer Intern assists in building and maintaining the user interface of websites or web applications. They work with languages like HTML, CSS, and JavaScript, often under the supervision of more experienced developers. Their tasks may include coding simple features, fixing bugs, and learning about best practices in frontend development. This internship is an opportunity to gain practical experience, develop technical skills, and understand how frontend teams operate in a professional environment.
What are popular job titles related to Junior Frontend Developer Intern jobs in Renton, WA? For Junior Frontend Developer Intern jobs in Renton, WA, the most frequently searched job titles are:
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What cities near Renton, WA are hiring for Junior Frontend Developer Intern jobs? Cities near Renton, WA with the most Junior Frontend Developer Intern job openings:

Staff Software Engineer, Backend

QXO

Seattle, WA • On-site

Full-time

Posted 23 days ago


QXO rating

8.0

Company rating: 8.0 out of 10

Based on 39 frontline employees who took The Breakroom Quiz

83rd of 343 rated retail wholesalers


Job description

Job Summary:
QXO, Inc. is the largest publicly traded distributor of roofing and building materials in North America, aiming to become a tech-enabled leader in its industry. They are seeking a Staff Software Engineer, Backend to design and build eCommerce services, implement scalable systems, and mentor junior engineers while collaborating with cross-functional teams.
Responsibilities:
• Design, build, and operate eCommerce services
• Design and implement scalable, low-latency systems that meet performance and security requirements
• Build intuitive and performant user interfaces
• Contribute to shared design system and front-end architecture
• Collaborate with cross-functional teams to develop end-to-end solutions
• Write clean, efficient, and testable code
• Contribute to shared libraries and platform components.
• Lead design, architecture and code reviews.
• Continuously improve operational excellence and system reliability
• Mentor junior engineers and shape engineering best practices.
Qualifications:
Required:
• 5+ years of hands-on coding experience
• 3+ years building scalable, distributed systems using object-oriented programming languages (Java, Kotlin, Go, etc.)
• Experience with modern front-end technologies and frameworks such as React, Next.js, or TypeScript
• Strong knowledge of data structures, algorithms, system design, and concurrency
• Experience building and developing large-scale reliable distributed systems.
• Experience designing, launching, and maintaining production systems in a cloud-native environment (e.g., GCP, AWS)
• Experience leading architectural designs and mentoring other engineers
• Bachelor’s degree in computer science, engineering, or equivalent
• Strong verbal and written communication skills
Preferred:
• Experience building commerce, checkout, identity, or personalization services at scale
• Experience building responsive, accessible, and performant UIs using front-end or mobile frameworks such as React Native
• Familiarity with AI/ML systems, including model inference pipelines, data labeling infrastructure, or real-time decisioning
• Experience with experimentation frameworks, recommendation engines, or search platforms
• Experience working with CI/CD pipelines, observability tools, and performance tuning
• Experience in Marketing or Ad Tech
• MS or Ph.D.
Company:
QXO is a technology solutions company that offers programming and technical support for the manufacturing and distribution sectors. Founded in 2002, the company is headquartered in Greenwich, USA, with a team of 10001+ employees. The company is currently Late Stage.

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