Senior Staff Engineer – Frontend

Lendistry

Senior Staff Engineer Frontend at Lendistry designing and implementing scalable web applications. Focusing on user experience and mentoring junior engineers in front-end best practices.

Posted 6/13/2026full-timeTustin • California, Texas • 🇺🇸 United StatesSenior💰 $111,200 - $185,000 per yearWebsite

Tech Stack

Tools & technologies

CypressJavaScriptJestMochaReact

About the role

Key responsibilities & impact

Design and implement the front-end architecture for complex web applications, ensuring scalability, maintainability, and performance.
Evaluate and introduce new technologies, frameworks, and methodologies to improve the development process and product quality.
Collaborate with cross-functional teams to define technical requirements and provide guidance on the best front-end practices.
Develop high-quality, responsive, and user-friendly web applications using modern technologies, with a strong focus on React.
Integrate RESTful APIs effectively, ensuring smooth communication between the front-end and back-end services.
Write clean, modular, and maintainable code, adhering to industry standards and best practices.
Optimize web applications for maximum speed and scalability.
Champion a user-centric approach to web development, ensuring that applications provide an intuitive and engaging user experience.
Collaborate closely with designers to implement pixel-perfect interfaces and ensure design fidelity.
Stay updated with the latest trends in UI/UX design and development, bringing new ideas to the table.
Develop and maintain comprehensive unit and integration tests for front-end components, ensuring robust and error-free applications.
Implement automated testing frameworks to streamline the development and deployment processes.
Work closely with QA teams to identify and fix bugs, ensuring high-quality releases.
Mentor and guide junior engineers, providing technical direction, code reviews, and career development support.
Foster a collaborative and inclusive team environment, encouraging knowledge sharing and continuous learning.
Lead by example, demonstrating best practices in front-end development and setting high standards for code quality.
Work closely with product managers, backend engineers, and other stakeholders to deliver features on time and with high quality.
Clearly communicate technical concepts and decisions to non-technical stakeholders.
Participate in technical discussions, architecture reviews, and code reviews to ensure high standards across the team.

Requirements

What you’ll need

6+ years of professional experience in front-end development, with a focus on React and other modern JavaScript frameworks.
Proven experience in architecting and building large-scale web applications.
Strong understanding of RESTful APIs and how to integrate them into front-end applications.
Experience with testing frameworks such as Jest, Mocha, or Cypress.
Strong understanding of web performance optimization techniques and best practices.
Passion for UI/UX design and a strong eye for detail.
Experience mentoring and leading engineering teams, with a focus on growth and development.
Excellent problem-solving skills and the ability to work independently and as part of a team.
Strong communication skills, both verbal and written, can convey complex technical concepts to various audiences.

Benefits

Comp & perks

Comprehensive Medical, Dental, and Vision Insurance
Generous Paid Time Off
Birthday Day Off
12 Paid Company Holidays
401(k) Match
FSA and HSA
Paid Life Insurance
Paid Disability Insurance
Pet Insurance
Employee Assistance Program (EAP)
Professional Development Courses
In Office Provided Snacks and Drinks
Gym Facilities (LA & Tustin/CEC Offices)
In Office Engagement Activities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

front-end developmentReactJavaScript frameworksRESTful APIsunit testingintegration testingweb performance optimizationautomated testing frameworksclean codescalability

Soft Skills

problem-solvingcommunicationmentoringcollaborationuser-centric approachleadershipteam environmenttechnical guidanceknowledge sharingattention to detail