CWILL

Builds post-purchase tools for online merchants

AI SEO R&D Trainee - Full-Stack Engineer, Go Backend

Full-Stack EngineeringConfirmed live in the last 24 hours

Full-timeCary, NC, USA$80k - $110k

About the Job

Requirements

Proficiency in Go (Golang) is required.
A bachelor's or master's degree from a US university is required; any major is accepted.
Graduation must be recent or within the last 1–2 years.
A solid understanding of web development fundamentals, including HTTP, APIs, databases, and frontend–backend interaction, is required.
Strong coding and debugging skills are required, including the ability to investigate and fully resolve problems.
Professional working proficiency in Mandarin Chinese and English is required for daily work with the engineering team in China.
Software development or SaaS internship experience is preferred.

Responsibilities

With mentor guidance, develop features for site audits, page checks, keyword analysis, content optimization, AI suggestions, and reporting.
Break requirements into technical tasks, then code, integrate, test, and release features.
Work on API integration between frontend and backend, data processing, business logic, and UI improvements.
Own the quality of shipped work.
Work with page, keyword, meta tag, site structure, and indexing data.
Build SEO check rules, scoring logic, optimization suggestions, and report metrics.
Help troubleshoot production bugs, data issues, and customer-reported problems.
Develop AI generation of titles, meta descriptions, content suggestions, and keyword suggestions.
Improve AI output quality, generation speed, user experience, and error handling.
Work on prompts, rules, templates, and output evaluation.
Work with product, design, QA, operations, and customer success to understand feature needs.
Follow team coding standards, participate in code review, and add documentation and tests.
Share progress, risks, and blockers proactively, and participate in retrospectives after launches.
By 3 months, understand the product and its main workflows and complete small features, bug fixes, and data tasks with a mentor.
By 6 months, independently own a small module, such as an SEO check, optimization suggestions, or a report page.
By 12 months, own a product module or technical area at the level of a junior engineer.

Desired Qualifications

Experience with other programming languages such as JavaScript/TypeScript, Python, Java, or PHP is a plus.
Computer Science, Information Systems, Engineering, or related fields are preferred degree areas.
Experience building web apps, SaaS products, SEO tools, AI apps, online stores, or Shopify apps.
Familiarity with PHP, React, Node.js, Next.js, NestJS, Python, PostgreSQL, or Redis.
Basic SEO knowledge, including keywords, titles, meta descriptions, site structure, indexing, and organic traffic.
AI project experience, such as LLM applications, prompting, retrieval-augmented generation (RAG), content generation, or automated analysis.
Experience with data collection, data cleaning, reporting, or web crawlers.

AI SEO R&D Trainee - Full-Stack Engineer (Go Backend) - Bilingual Mandarin

CWILL · cary, United States (Hybrid) · Full-time · Posted 2026-10-13

Salary: USD 80,000–110,000

Workplace: hybrid

Description

About CWILL

CWILL (pronounced 'quill') is a post-purchase and retention suite built for Shopify brands. Reduce support tickets, recover lost revenue from returns, and turn one-time buyers into loyal fans — with tools purpose-built for every touchpoint that follows the sale.

About the Role

CWILL AI SEO & Image Optimizer is our AI-powered SEO and site speed product for cross-border e-commerce and Shopify merchants. It helps merchants improve content quality, indexing, keyword coverage and organic traffic, with more site audits, keyword analysis, content generation, reporting and AI SEO workflows on the way.

As an R&D Trainee, you'll learn by building real features with a mentor, and grow into an engineer who owns a module independently.

Product Intro:

https://www.cwill.com/products/seo-speed/

Base location required:

Cary, NC

(We are unable to hire in other states; relocation will be required.)

Hybrid remote working setting

What You'll Do

Build AI SEO Features

With guidance from your mentor, develop features across site audits, page checks, keyword analysis, content optimization, AI suggestions and reporting
Break down requirements into technical tasks, then code, integrate, test and release
Work on API integration between frontend and backend, data processing, business logic and UI improvements
Own the quality of what you ship

Process SEO Data and Improve the System

Work with page, keyword, meta tag, site structure and indexing data
Build SEO check rules, scoring logic, optimization suggestions and report metrics
Help troubleshoot production bugs, data issues and customer-reported problems

Build AI SEO Capabilities

Develop AI generation of titles, meta descriptions, content suggestions and keyword suggestions
Improve AI output quality, generation speed, user experience and error handling
Work on prompts, rules, templates and output evaluation

Collaborate and Deliver

Work with product, design, QA, operations and customer success to understand the why behind each feature
Follow team coding standards, take part in code review, and add documentation and tests
Share progress, risks and blockers proactively, and join retrospectives after each launch

Your Growth Path

By 3 months: understand the product and its main workflows; complete small features, bug fixes and data tasks with your mentor
By 6 months: independently own a small module, such as an SEO check, optimization suggestions or a report page
By 12 months: own a product module or technical area at the level of a junior engineer

Requirements

Requirements

Proficiency in Go (Golang) is required. Experience with other languages such as JavaScript/TypeScript, Python, Java or PHP is a plus
Bachelor's or master's degree from a US university, graduating recently or within the last 1–2 years. Any major; Computer Science, Information Systems, Engineering or related fields preferred
Solid understanding of web development fundamentals: HTTP, APIs, databases and frontend–backend interaction
Good coding and debugging skills: you can get to the bottom of a problem and fix it completely
Strong learner who reads documentation, digs into problems and grows quickly on real projects
Reliable and detail-oriented; you keep the team updated on progress and issues
Professional working proficiency in Mandarin Chinese and English (you will work daily with our engineering team in China)
Software development or SaaS internship experience preferred

Nice to Have

Experience building web apps, SaaS, SEO tools, AI apps, online stores or Shopify apps
Familiarity with one or more of: PHP, React, Node.js, Next.js, NestJS, Python, PostgreSQL, Redis
Basic SEO knowledge: keywords, titles, meta descriptions, site structure, indexing and organic traffic
AI projects such as LLM apps, prompting, RAG, content generation or automated analysis
Experience with data collection, data cleaning, reporting or web crawlers

Benefits

Starting Pay: 80k - 110k depends on experiences, open to negotiation

401(k)
PTO
Paid Holidays
Insurance

Apply

Apply at CWILL

About the Company

CWILL

Builds post-purchase tools for online merchants

CWILL provides software for online merchants to manage customer activity after a purchase and encourage repeat business. Its apps combine shipment tracking, returns and exchanges with product reviews, loyalty rewards, referral programs and email marketing. Store teams use the tools to send delivery updates, resolve return requests, collect customer feedback and coordinate campaigns, while a separate chatbot answers shopper questions using store information. Merchants install individual apps or connect several products, with paid subscriptions based on selected features and usage alongside free plans. The business began in 2014 as Channelwill and is headquartered in Cary, North Carolina.

Company size: 51-200
Company stage: Not listed
Total funding: Not listed
Headquarters: Cary, NC
Founded: 2014

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