Senior Frontend Engineer

Company: HackerRank
Location: Santa Clara
Posted on: February 17, 2026

Job Description:

HackerRank helps companies like NVIDIA, Amazon, and Microsoft hire and upskill the next generation of developers based on skills, not pedigree. Our platform is trusted by over 2,500 of the world’s most innovative companies to build strong engineering teams ready for what’s next. Software has entered an era where humans and AI build side by side. As this shift accelerates, the definition of strong technical talent is changing. We give companies better ways to identify and invest in next-generation skills. People at HackerRank care deeply about the impact of their work and sweat the small details so our customers can be wildly successful with products they genuinely love to use. We move with urgency and believe great outcomes come from high standards About the role As a Senior Frontend Engineer, you will work on building a platform to provide customers trustable integrity solutions across all of the HackerRank products, while also ensuring a world-class developer experience. These solutions also need to be built so they can handle a scale of over 100K concurrent users. What you’ll do Partnering with product designers and product managers to build and improve workflows and user experience for various personas like Candidate, Recruiter, Interviewer, and Hiring Manager Building uniform software front-end components that are pluggable and can be used across the organizations for various offerings. Understanding key web performance metrics for the product and strive to improve it regularly Actively participate in setting up good standards and conventions for front-end engineering and also review code for quality. We believe good code is like good karma; it goes a long way. Collaborating with the engineers across the team; for organization-wide initiatives, with the mission to improve software quality and user experience regularly Mentoring budding Engineers and Interns You will thrive in this role if You excel at being a product engineer who doesn’t just convert requirements into code, but excels in understanding the problem being solved and can provide feedback and suggestions to improve the customer experience. You have a track record of working in an ambiguous environment and can drive and navigate the complexity and deliver quality user experiences. You are passionate about solving customer problems and go deep trying to understand and empathize on customer challenges. You have a very high bar on quality. You are AI Native and fully embrace the use of AI tools in your day to day job. You have a great sense of modern design patterns and strive for pixel-perfect designs. You have sensitivity to the implications of integrity breaches on customers, candidates, and the platform’s reputation. You have the ability to spot subtle anomalies, patterns of misuse, or suspicious behavior in assessment data. You have the patience to methodically investigate potential issues without jumping to conclusions. You have the ability to anticipate threats (e.g., misuse of LLMs or cheating tools) before they become widespread. You have the ability to design preventive solutions rather than reacting only after an incident. What you bring Strong and self-motivated individuals, looking to learn and contribute to key product and tech initiatives. Overall 4 years of expertise in JavaScript-based UI Frameworks such as ReactJS We also expect you to be good with fundamental Javascript. Good hands-on practical knowledge of HTML and CSS Experience with frontend toolings like Webpack, babel, etc. Hands-on experience in frontend debugging and unit testing. Keen attention to quality, someone who has set or used good coding standards for front-end development Good knowledge of various browser environments, compatibility, and any experience in building a multiscreen app is a bonus AI Native way of working where you fully embrace AI assistance in your day to day workflow. Eye for detail and metrics-driven especially around Web Performance and Optimization Bonus Skills Understanding of frontend security Exposure to other frontend frameworks besides ReactJS Understanding of backend APIs and technologies Exposure to typescript is a plus Compensation Base salary range: $150,000 – $172,000. This range doesn’t include bonuses, stock options, or benefits for which you will be eligible. Final offer may vary based on skills, experience, location, and other compensation components. HackerRank is a proud equal employment opportunity and affirmative action employer. We provide equal opportunity to everyone for employment based on individual performance and qualification. We never discriminate based on race, religion, national origin, gender identity or expression, sexual orientation, age, marital, veteran, or disability status. All your information will be kept confidential according to EEO guidelines.

Keywords: HackerRank, Petaluma , Senior Frontend Engineer, IT / Software / Systems , Santa Clara, California