Software Engineer II (Js, TypeScript)
The Software Engineer II at Confidential Client focuses on designing and developing frontend components for user signup and activation flows, directly impacting user acquisition and engagement. This role involves collaborating with cross-disciplinary teams to build scalable, accessible, and high-quality web experiences, utilizing modern JavaScript frameworks and growth engineering techniques to optimize conversion rates.
About Careertakes
👉 Important disclosure: Careertakes is a third-party recruiting platform supporting this hiring process. If selected, you will be employed directly by our client, Technology, Information and Internet.
Applicants for this role may also receive access to additional matched opportunities through the Careertakes platform.
Role summary
Join a Confidential Client engineering team focused on signup & activation. As a Frontend Software Engineer II (TypeScript / JavaScript), you’ll build high-impact, customer-facing web flows that directly influence user acquisition and activation metrics. This role emphasizes high-quality UI, experimentation (A/B testing), personalization, and collaboration with product, design, data, and backend engineers.
What You’ll Do
- Design, develop, and maintain frontend components for signup, onboarding, and activation experiences.
- Implement production-quality React + TypeScript code (component architecture, state management, testing).
- Build and run A/B tests and personalization experiments to improve conversion and engagement.
- Collaborate with backend engineers on API integration (REST/GraphQL) and data flows.
- Improve frontend performance, accessibility (a11y), and cross-device consistency.
- Contribute to shared UI libraries, monorepo practices, and frontend architecture decisions.
- Participate in code reviews, write clear docs, and mentor peers on frontend best practices.
- Triage and resolve frontend issues in production; ship iterative improvements with measurable outcomes.
Qualifications
- 4+ years building and shipping customer-facing frontend applications.
- Strong TypeScript and JavaScript skills; production React experience.
- Experience with modern frameworks such as Next.js (or similar SSR/SSG frameworks).
- Familiarity with Ruby on Rails is a plus (for collaborating with backend teams).
- Experience integrating with REST APIs; GraphQL experience preferred.
- Practical knowledge of experimentation platforms, A/B testing, and personalization systems.
- Solid understanding of accessibility standards, frontend testing (unit/integration), and UI quality.
- Experience working in shared codebases, monorepos, or design-system-driven projects.
- Clear written and verbal communication; experience collaborating on distributed/remote teams.
- Comfortable using AI tools to accelerate development and debugging.
Responsibilities & Expectations
- Own features end-to-end: design, implementation, testing, rollout, and measurement.
- Deliver accessible and performant user experiences that scale across devices and locales.
- Write maintainable code, tests, and documentation; advocate for developer ergonomics.
- Use analytics and experiment results to iterate and prioritize improvements.
- Work cross-functionally to align technical solutions with product and business goals.
- Support a culture of psychological safety and inclusive collaboration.
Benefits & Work Model
- Flexible work model (hybrid/remote options as supported by Confidential Client).
- Comprehensive health, dental, and vision coverage.
- Mental health resources and disability coverage.
- Generous paid time off (vacation, sick leave, holidays) and parental leave.
- Retirement matching and potential equity participation.
- Professional development stipends and learning programs.
- Wellness stipends and home office allowances.
- Access to company products and productivity/AI tools.
Additional information
- Employment type: Full-time
- Seniority: Associate (Software Engineer II)
- Industries: Technology, Information and Internet
- Confidential Client is committed to inclusive hiring. Applicants who need reasonable accommodations for the application or interview process may request them.
Equal Opportunity & Hiring Transparency
Careertakes and our client are Equal Opportunity Employers committed to building a diverse and inclusive workforce. We prohibit discrimination or harassment of any kind. To support a fair and efficient hiring process, AI tools may be used to assist with application review or resume screening. These tools do not replace human decision-making. Final hiring decisions are made by people.
If you have questions about how your data is used, please contact us directly.
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