Javascript Engineer : Prospect UI Solutions (Remote)
Constructor
- Location
- United States
- Job Type
- full-time
- Salary
- $90,000 - $110,000 USD / year
- Posted
- June 8, 2025
Job Description
About You
You have a knack for solving intricate problems with JavaScript. You're driven by the idea of writing code that simplifies life for millions of users globally. You're committed to continuous learning and enjoy tackling new challenges. Pair programming, code reviews, and collaborative brainstorming with a team are activities you find fulfilling. You're eager to work alongside developers, prospective customers, account executives, product managers, data scientists, and data analysts. You're a disciplined professional who consistently delivers high-quality code, communicates technical solutions with clarity and empathy, and takes the initiative to streamline processes for your team and yourself.
About Us
Constructor is the next-generation platform for search and discovery in ecommerce, built on a unique GPT-based architecture made specifically for commerce. Constructor's AI-first solutions make it easier for shoppers to discover products they want to buy and for ecommerce teams to deliver highly personalized experiences, from search, to recommendations, to AI Shopping Agents and everything in between. Optimizing specifically for ecommerce metrics like revenue, conversion rate and profit, Constructor generates consistent $10M+ lifts for some of the biggest brands in ecommerce, such as Sephora, Petco, Under Armour, home24, Birkenstock and The Very Group. Constructor is a U.S. based company that has been in market since 2019. It was founded by Eli Finkelshteyn and Dan McCormick who still lead the company today.
We’re a passionate team of technologists who love solving problems and want to make our customers’ and coworkers’ lives better. We value empathy, openness, curiosity, continuous improvement, and are excited by metrics that matter. We believe that empowering everyone in a company to do what they think is best can lead to great things.
About the Position
As a JavaScript Engineer on the Prospect UI Solutions team, you will play a pivotal role in proving how Constructor will enhance the website discovery experiences for prospects. You’ll work closely with prospects to seamlessly integrate their data with our services, supporting them to create an optimized and accurate product discovery demo.
In this role, your will:
- Fuel our AI models: Write JavaScript code to collect data essential for training our AI.
- Seal the deal: Collaborate with Data Analysts and Account Executives to secure deals with prominent e-commerce brands.
- Be a tech guru: Assist prospects in integrating their data and user interfaces with our services, focusing on ETL and front-end aspects.
- Deliver excellence: Validate the data provided by prospects and ensure the quality of the results returned by our services.
- Empower a sales force: Contribute to the development and scaling of demo infrastructure to enhance the efficiency of the Sales team.
- Be a part of the answer: Address technical inquiries from prospects about our services.
- Elevate the team: Provide support to your teammates through thoughtful code reviews.
- Visualize brilliance: Develop dashboards and alerts using React, Redux, Node, and OpenSearch.
- Innovate with purpose: Implement and test new features for our open-source JavaScript UI libraries and REST clients.
- Collaborative contribution: Steer cross-team efforts to ensure our prospect's needs are at the forefront of our priorities, making you a key player in our strategic success.
- Champion team culture: Actively foster our team’s sense of community by expanding our roster of Friday team-building games and promoting a culture of empathy, personal growth, and support for others.
This role is ideal for a JavaScript engineer passionate about search technology, customer-focused solutions, and collaborative development.
Requirements
- A minimum of four years of professional experience or relevant academic experience
- Excellent communication and interpersonal skills
- English on C1 level (CEFR) or higher
- Being able to attend regular meetings with Americas-based teammates between 2 and 8 pm UTC
- Strong foundation and experience with server-side and client-side JavaScript
- Enjoys interacting with customers and solving new problems daily
- Able to pick up new technologies and design patterns quickly and loves learning them
- Experience with front-end frameworks like React, Vue or Angular
- Experience with CSS and an eye for user experience
- Experience with automated tests - e.g. Cypress, Jest, or React Testing Library
- Nice to have - TypeScript, Next.js, Tailwind, Storybook, Python and web scraping experience
Benefits
- ποΈ Unlimited vacation time - we strongly encourage all of our employees take at least 3 weeks per year
- π° A competitive compensation package including stock options
- π Fully remote team - choose where you live
- ποΈ Work from home stipend! We want you to have the resources you need to set up your home office
- π» Apple laptops provided for new employees
- π§π Training and development budget for every employee, refreshed each year
- πͺ Parental leave for qualified employees
- π§ Work with smart people who will help you grow and make a meaningful impact
This position is fully remote - Constructor.io is a remote-first company.
Salary range: $90,000 - $110,000 USD / year
Diversity, Equity, and Inclusion at Constructor
At Constructor.io, we are committed to cultivating a work environment that is diverse, equitable, and inclusive. As an equal opportunity employer, we welcome individuals of all backgrounds and provide equal opportunities to all applicants regardless of their education, diversity of opinion, race, color, religion, gender, gender expression, sexual orientation, national origin, genetics, disability, age, veteran status or affiliation in any other protected group.
π― Who is this job for?
This role suits a JavaScript Engineer with 4+ years of experience, strong in both client-side and server-side JavaScript, and comfortable with React, Redux, and Node.js. Candidates should enjoy customer interaction, solving complex problems, and working in a collaborative, remote-first environment. Experience with automated testing, TypeScript, and frontend frameworks like Vue or Angular is a plus.
π¬ Potential Interview Questions
-
How do you approach integrating prospect data with AI-driven ecommerce search services?
Build robust ETL pipelines to clean, normalize, and feed data into AI models; collaborate closely with prospects to validate data quality and alignment with search requirements. -
What techniques do you use to build responsive and user-friendly React dashboards?
Utilize component-driven design, manage state with Redux, optimize rendering with memoization, and apply CSS frameworks for consistent styling and accessibility. -
How do you ensure the quality and reliability of JavaScript UI libraries in an open-source environment?
Implement comprehensive unit and integration tests using Jest and React Testing Library, conduct code reviews, document APIs clearly, and gather community feedback. -
What strategies help you collaborate effectively with cross-functional teams including sales and data analysts?
Maintain clear and frequent communication, align on project goals, translate technical details into business value, and actively participate in demos and feedback sessions. -
How do you handle automated testing for complex front-end applications?
Use Jest for unit tests, React Testing Library for component behavior, and Cypress for end-to-end user flows, ensuring coverage across critical features. -
What is your experience with data visualization and alerting using OpenSearch or similar tools?
Build intuitive dashboards with relevant KPIs, set up real-time alerts for anomalies, and optimize queries for fast data retrieval. -
How do you balance customer-focused solutions with technical scalability and maintainability?
Prioritize requirements by impact, build modular and reusable code, document thoroughly, and iteratively refactor based on feedback and usage patterns. -
What role does TypeScript play in improving JavaScript codebases?
TypeScript adds static typing, improves IDE support, reduces runtime errors, and makes large codebases more maintainable and scalable. -
How do you foster a collaborative and empathetic team culture remotely?
Organize virtual team-building activities, encourage open communication, offer support and mentorship, and celebrate diverse perspectives. -
How do you keep up with evolving JavaScript frameworks and technologies?
Follow tech blogs, contribute to open source, attend conferences, participate in online communities, and dedicate time to hands-on experimentation.
π Job Summary
Constructor.io is hiring a remote JavaScript Engineer to join their Prospect UI Solutions team, focusing on enhancing ecommerce product discovery using AI-powered search technology. You'll collaborate with prospects and cross-functional teams, integrating data and building scalable demos with React, Redux, Node.js, and OpenSearch. Ideal candidates have 4+ years of JavaScript experience, strong communication skills, and a passion for customer-focused, innovative solutions. Enjoy unlimited vacation, competitive pay (\$90K–\$110K), stock options, and a supportive remote-first culture.