Software Engineer - Frontend
Alignerr · United States
- Hybrid
- Contract
- $75,000 / year
- United States
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Job highlights
- Remote contract role for Frontend Software Engineer.
- Review and write AI-generated frontend code.
- Requires JavaScript and frontend framework expertise.
- Flexible schedule, work from anywhere.
- Improve AI models for top AI labs.
About the role
Frontend Software Engineer - Contract
Labelbox is seeking a Frontend Software Engineer for a remote, contract position. You will help 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 You Have:
- 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
- UI/UX
- AI
Skills & topics
- Frontend Software Engineer
- JavaScript
- HTML
- CSS
- React
- Vue
- Angular
- Web Development
- AI
- Contract
How to get hired
- Tailor your resume: Highlight JavaScript proficiency, frontend framework experience, and any AI-related projects.
- Ace the AI screening: Be prepared to discuss your frontend expertise clearly and concisely.
- Showcase your skills: Demonstrate a deep understanding of core JavaScript, DOM manipulation, and modern syntax.
- Emphasize communication: Clearly explain complex frontend concepts and problem-solving strategies.
- Highlight AI interest: Mention any experience with data labeling or AI training projects.
Technical preparation
Master JavaScript core concepts and ES6+ syntax.,Practice DOM manipulation and browser APIs.,Review modern frontend frameworks like React.,Understand AI code evaluation criteria.
Behavioral questions
Explain a complex frontend problem you solved.,How do you ensure code clarity and efficiency?,Describe your experience with asynchronous JavaScript.,How do you approach identifying edge cases?
Frequently asked questions
- What is the pay range for a Frontend Software Engineer at Labelbox?
- The pay range for a Frontend Software Engineer contractor at Labelbox is $25 – $100 per hour, depending on experience and project needs.
- Is the Frontend Software Engineer role at Labelbox remote?
- Yes, the Frontend Software Engineer role is fully remote and asynchronous, allowing you to work from anywhere.
- What are the primary responsibilities of a Frontend Software Engineer at Labelbox?
- As a Frontend Software Engineer, you will review and evaluate AI-generated frontend code (JavaScript, HTML, CSS), write high-quality frontend solutions, and clearly explain your design decisions and code logic.
- What programming languages and technologies are essential for this Frontend Software Engineer role?
- Strong expertise in JavaScript is essential, including core features like async/await, closures, DOM manipulation, and ES6+ syntax. Familiarity with modern frontend frameworks like React, Vue, or Angular is a plus.
- What is the interview process for the Frontend Software Engineer position at Labelbox?
- The interview process includes an initial screening with an AI interviewer named Zara, followed by a domain-specific interview to assess your frontend expertise.
- Does Labelbox require a degree for the Frontend Software Engineer position?
- While a Bachelor’s degree in Computer Science or a related field is preferred, and a Master’s or PhD is a bonus, it is not strictly required. Experience and skills are highly valued.
- What kind of impact does a Frontend Software Engineer have at Labelbox?
- Your work directly improves AI models used by top AI labs and Fortune 500 companies, making a significant impact on the field of artificial intelligence.
- What are the benefits of working as a contract Frontend Software Engineer at Labelbox?
- Benefits include a flexible workload, the ability to work from anywhere, clear ownership of tasks, and growth potential for high performers to lead new programs.