About this role.
iHerb is seeking a Sr. Software Engineer II to build and modernize its product catalog platform, working across the full stack including backend services (.NET/C#, Go, Python, Java), React frontend, and relational databases. The role emphasizes AI-driven development tools like Claude Code for daily code generation and testing. You'll own features end-to-end from design to deployment, participate in on-call rotation, and collaborate with product and design teams. Ideal candidates have 10+ years of experience, strong full-stack skills, and a track record of production ownership.
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Cover letter sample
Dear Hiring Manager,
I am excited to apply for the Sr. Software Engineer II - Catalog position at iHerb. With over 10 years of full-stack development experience and a strong background in C#/.NET, React, and database technologies, I am confident in my ability to contribute to modernizing your product catalog platform. I have hands-on experience integrating AI-driven tools like Copilot and Claude Code into my daily workflow, enabling efficient code generation and testing.
In my previous role, I owned features end-to-end from specification to deployment and observability, collaborating closely with product and design teams. I am passionate about building high-quality, maintainable systems and have a proven track record of mentoring peers and improving SDLC processes.
I look forward to the opportunity to discuss how my skills align with iHerb's needs. Thank you for your consideration.
Sincerely,
[Your Name]
Sample interview questions
I led the migration of a monolithic catalog service to microservices using the strangler fig pattern. We gradually routed traffic to new services, maintained feature parity, and used feature flags for rollback. Automated tests and thorough monitoring ensured reliability.
I use Claude Code for generating unit tests and boilerplate code. For instance, when building a new REST endpoint, I write the API spec and let Claude generate the initial implementation, which I then review and refine. This reduced development time by 30%.
I start with normalization to avoid redundancy, then consider read/write patterns. For high-traffic catalogs, I use denormalization for read-heavy queries and implement caching with Redis. I also partition tables by category or region to improve performance.
I enforce code reviews, comprehensive unit and integration tests, and adhere to SOLID principles. I also advocate for automated linting and formatting. Pair programming and documentation help maintain standards without slowing delivery.
I have been on-call for a high-traffic e-commerce platform. When an incident occurs, I first assess impact and severity, then follow runbooks to mitigate. I use dashboards and alerts to identify root causes, and post-incident I conduct blameless postmortems to prevent recurrence.
Job Summary:
The Sr. Software Engineer II – Catalog will build and modernize iHerb’s product catalog, one of the most business-critical platforms in the company. You will work across the full stack: backend services, React frontend, and relational data layers. Our current backend is .NET/C#; we also use Go, Python, and Java across the organization.
Job Expectations:
Build and ship catalog features end-to-end: API design, business logic, data models, and React UI.
Use AI-driven SDLC tooling such as Claude Code as a core part of your daily workflow, including code generation, spec-to-code translation, and automated test creation.
Participate in the catalog modernization effort, working on the new stack in parallel with the existing platform.
Write and maintain automated tests; quality is built in, not handed off.
Review pull requests, maintain code standards, and contribute improvements to the shared golden path.
Collaborate with product and design to refine specs before and during implementation.
Instrument services with logging, metrics, and alerts; participate in on-call rotation and own incident response for catalog services.
The duties and responsibilities described above may provide only a partial description of this position. This is not an exhaustive list of all aspects of the job. Other duties and responsibilities not outlined in this document may be added as necessary or desirable, with or without notice.
Knowledge, Skills and Abilities:
Required:
AI-driven SDLC : hands-on experience shipping production code with AI-assisted development tools such as Claude Code, GitHub Copilot, or Cursor. The bar is not awareness; it is daily use in delivering real software.
Full-stack awareness: comfortable contributing across layers of the stack when needed; purely single-layer specialists are not the target profile.
Production ownership: experience owning features end-to-end from spec through deployment, observability, and on-call. Engineers here own what they ship; there is no separate ops handoff.
Code quality fundamentals: strong grasp of software design principles, automated testing, code review, and CI/CD.
Backend development proficiency in one or more of: C#/.NET, Go, Python, Java. .NET/C# is the primary stack today.
Proficiency in React or equivalent modern frontend framework.
Proficiency in Relational database experience with MS SQL Server or Postgres.
Proficiency in REST API design and microservice patterns.
High degree of accuracy and attention to detail
Excellent organization skills and ability to multi-task
Preferred:
Contributions to internal developer tooling, golden path standards, or SDLC process improvements.
Experience with e-commerce platforms, product catalogs, or high-traffic consumer applications.
Experience working in globally distributed teams.
Track record of documenting architectural decisions, writing RFCs, or contributing to engineering wikis.
Equipment Knowledge:
Experience with Microsoft Office Suite (Word, Excel, PowerPoint)
Experience with Google Business Suite (Gmail, Drive, Docs, Sheets, Forms) preferred
Experience Requirements:
Generally requires a minimum of 10+ years of software engineering experience.
Education Requirements:
Bachelor’s Degree in Computer Science or related field preferred, or a combination of education and equivalent work experience.
Judgment/Reasoning Ability: Able to identify, troubleshoot and resolve problems quickly using sound judgment, poise and diplomacy. Ability to use judgment and reasoning skills, and determine when to escalate issues, as required, in a timely manner.
Physical Demands: The physical demands described here are representative of those that must be met by a Team Member to successfully perform the essential functions of this job. While performing the duties of this job, the Team Member is regularly required to talk and hear. The Team Member is frequently required to sit, walk, climb stairs, use hands and fingers, bend, stoop and reach with hands and arms. Reaching above shoulder heights, below the waist or lifting as required to file documents or store materials throughout the work day. The Team Member may occasionally lift or move office products and supplies up to 25 pounds. Proper lifting techniques required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
Work Environment: The noise in the work environment is usually moderate. Other factors are:
Hectic, fast-paced with multi-level distractions
Professional, yet casual work environment
Office / Warehouse environment
Ability to work extended hours as required
#LI-JC1
Employees (and their families) that meet eligibility criteria as outlined in applicable plan documents are eligible to participate in our medical, dental, vision, and basic life insurance programs and may enroll in our company’s 401(k) plan. Employees will also be eligible for Time Off and Paid Sick Leave pursuant to the company’s policies. Employees will enjoy paid holidays throughout the calendar year. Eligibility requirements for these benefits will be controlled by applicable plan documents.
For more information on iHerb benefits, visit us at iHerbBenefits.com.
Staffing Agency Submission Notice
iHerb does not accept unsolicited 3rd party (“Agency”) candidates. If you are an Agency, please send any requests to be considered as a supplier in our Vendor Management System to staffingvendors@iherb.com. Do not contact iHerb employees directly. If requested to work on a role, any Agency candidates would be presented through the internal recruiting organization.
About iHerb
iHerb is on a mission to make health and wellness accessible to all. We offer Earth’s best-curated selection of health and wellness products, at the best possible value, delivered with the most convenient experience.
We’re the world’s largest eCommerce platform dedicated to vitamins, minerals, and supplements, and other health and wellness products. For more than 25 years, we’ve been making it simple for people all over the world to purchase the highest quality products. From supplements to skincare to grocery items, we ship over 50,000 products, from over 1,800 brands direct to our customers in 180+ countries.
Our vision is to become the #1 destination for health and wellness across the world.
With a passion for wellness and a mind for innovative solutions, iHerb team members share a vision for a healthier world that drives them each day. Our 5 Shared Values unite our global team:
Focus on the Customer · Empower Our People · Be Entrepreneurial & Pivot Quickly ·
Embrace Diversity & Inclusion · Strive for Simplicity
iHerb Benefits
At iHerb, we are dedicated to offering programs designed to help our employees and their families stay healthy, live well, and plan for their financial future. Built on a strong foundation, our programs provide options and upgrades with flexibility, protection, and security in mind. For the comprehensive benefits list, visit www.iHerbBenefits.com. For our international team members, you may be eligible for benefits depending on the country where you are employed. The Talent Acquisition Partner/local HR representative will go over the benefits you are eligible for.
iHerb is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. iHerb provides equal employment opportunities to all applicants for employment and prohibits discrimination and harassment.
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