Software Engineer - Frontend
Alignerr · United States
- Hybrid
- Contract
- $75,000 / year
- United States
Tailored resume — keyword-matched to this role.
Hiring manager — we find who's hiring.
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Job highlights
- Review and write AI-generated frontend code.
- Build high-quality UI and web development solutions.
- Explain design decisions and code logic clearly.
- Identify edge cases and ambiguities in AI responses.
- Work remotely with flexible hours on impactful AI projects.
About the role
Software Engineer - Frontend (Contract)
Shape the data that powers frontier AI
Quick facts
- Engagement - Hourly, at-will contractor
- Schedule - Fully remote & asynchronous (min. 15 hrs/week)
- Pay Range (US) - $25 – $100 per hour
- Start Date - Rolling — staffed as projects launch
What You’ll Do
- Review and evaluate AI-generated frontend code (JavaScript, HTML, CSS) for correctness, efficiency, accessibility, and clarity
- Write high-quality frontend solutions to UI and web development problems across varying difficulty levels
- Create clear, user-friendly explanations for design decisions, code logic, and problem-solving strategies
- Identify and flag edge cases or ambiguities in problem statements or AI responses.
You’re a great fit if
- Fluent in English, with strong written communication skills and the ability to clearly explain frontend coding concepts
- Expertise in JavaScript: Deep familiarity with core JavaScript features such as async/await, closures, DOM manipulation, ES6+ syntax, and browser APIs
- 3–5 years of experience with modern frontend frameworks, tools, or domains (e.g., React, Vue, Angular, web development) is a plus
- Bachelor’s degree (or pursuing one) in Computer Science or a related field. Master’s or PhD preferred, but not required.
- Bonus: Experience with data labeling, RLHF, or other AI training projects
About The Role
- Flexible workload — work from anywhere, on your own schedule
- High impact — your craft directly improves models used by top AI labs & Fortune 500 teams
- Clear ownership — know exactly what success looks like and have autonomy to deliver
- Growth potential — consistent high performers spearhead new programs and mentor incoming SMEs
Interview process
- Complete a screening with Zara, our AI interviewer in English, to learn more about your background and experience.
- Domain-specific Zara interview to assess your frontend expertise, including frontend frameworks, state management, and performance optimization.
About Labelbox
Labelbox builds the data engine that accelerates breakthrough AI. Our platform, expert services, and marketplace let teams iterate on data as nimbly as they iterate on code, enabling safer, smarter models in production. We’re backed by SoftBank, Andreessen Horowitz, B Capital, Gradient Ventures, Databricks Ventures, and Kleiner Perkins, and trusted by leading research labs and enterprises worldwide.
Ready to Apply?
Click “Apply” above, and take one or more domain specific assessments. We review candidates on a rolling basis and will contact you if your background matches an active project.
Key skills/competency
- Frontend Software Engineer
- JavaScript
- HTML
- CSS
- React
- Vue
- Angular
- Web Development
- AI Code Review
- Problem Solving
Skills & topics
- Frontend Developer
- Software Engineer
- JavaScript
- HTML
- CSS
- React
- Vue
- Angular
- Web Development
- AI
- Remote
- Contractor
- Asynchronous
- Data Labeling
- RLHF
How to get hired
- Tailor your resume: Highlight JavaScript, frontend frameworks, and AI experience.
- Ace the AI screening: Prepare for Zara's initial assessment.
- Demonstrate frontend expertise: Be ready for domain-specific technical interviews.
- Showcase communication skills: Clearly explain your coding concepts and decisions.
- Highlight AI/ML familiarity: Mention any data labeling or RLHF experience.
Technical preparation
Master JavaScript core concepts thoroughly.,Practice with modern frontend frameworks.,Prepare to explain code logic clearly.,Familiarize yourself with AI/ML concepts.
Behavioral questions
Explain a complex frontend problem solved.,Describe how you handle ambiguity.,How do you ensure code quality?,Discuss your remote work experience.
Frequently asked questions
- What is the pay range for a Frontend Software Engineer at Labelbox?
- The pay range for a Frontend Software Engineer at Labelbox is $25 – $100 per hour, depending on experience and project requirements.
- Is the Frontend Software Engineer role remote?
- Yes, this Frontend Software Engineer position is fully remote and asynchronous, allowing you to work from anywhere.
- What programming languages are essential for this Frontend Software Engineer role?
- Expertise in JavaScript is essential, with deep familiarity in core features like async/await, closures, DOM manipulation, ES6+, and browser APIs. HTML and CSS are also key.
- What kind of projects will a Frontend Software Engineer work on at Labelbox?
- You will review and evaluate AI-generated frontend code, write frontend solutions, and create explanations for design decisions, directly improving AI models used by top organizations.
- How does the interview process for the Frontend Software Engineer position work at Labelbox?
- The interview process involves an initial screening with an AI interviewer named Zara, followed by a domain-specific interview to assess your frontend expertise, including frameworks and optimization.
- Is experience with AI or data labeling required for this Frontend Software Engineer role?
- While not strictly required, experience with data labeling, RLHF, or other AI training projects is considered a bonus for the Frontend Software Engineer position.
- What is the required experience level for the Frontend Software Engineer position?
- The role prefers 3-5 years of experience with modern frontend frameworks, tools, or domains. A Bachelor's degree in Computer Science or a related field is also preferred.
- What does 'asynchronous' mean for the remote work schedule?
- Asynchronous work means you can complete your tasks on your own schedule, rather than needing to be online at the same time as your colleagues, as long as you meet the minimum 15 hours per week.