Backend Engineer, Claude Code Engineer (Golang)

Top 3 reasons to join us

• Make a global impact on merchants’ success
• Deepen your skills in a competitive SaaS market
• Grow with passionate talents for quality products

Job description

About the Role

We are looking for a highly skilled Backend Engineer who is not only a master of Golang and AWS Serverless but also a pioneer in AI-augmented development. You will take ownership of complex system structures, ensure top-tier code quality, and heavily utilize Claude Code to supercharge your daily workflow, from prototyping to deployment.
 

What You’ll Do:
 

1. Product Development & Architecture:

• System Design: Take responsibility for designing the structure of complex functionalities, which may involve multiple modules or the entire system architecture.
• Feature Implementation: Handle core tasks with a high level of difficulty. Apply the most suitable technologies, ensure high performance, and collaborate seamlessly with Design, Frontend, Backend, and QA teams to meet product requirements.
• Quality Assurance: Deliver bug-free, clean, and readable code. Ensure all implementations pass QA test cases and strictly adhere to team standards (Linting, Conventional Commits, Clean Code).
  
  2. AI-Augmented Engineering (Mastery of Claude Code):
• You are expected to proficiently utilize Claude Code (Anthropic's CLI agent) in your daily workflow to 10x your productivity. Specific use cases include:
• Rapid Scaffolding & Boilerplating: Using Claude Code to quickly generate Go structs, MongoDB models, AWS Lambda handlers, and RESTful API endpoints based on PRDs.
• Test-Driven Development (TDD): Instructing Claude Code to automatically generate and run comprehensive unit tests for complex business logic to achieve maximum test coverage.
• Advanced Refactoring & Debugging: Leveraging Claude Code to analyze the entire codebase to trace complex bugs, suggest performance optimizations, or refactor legacy modules into separation-of-concerns architectures.
• Automated Documentation: Using the AI agent to read through implemented features and automatically draft or update technical documentation, API specs, and inline comments.
  
  3. Code Review & Mentorship:
• Review peer code to ensure adherence to coding styles (Clean Code, Solid principles).
• Utilize AI tools to assist in analyzing large Pull Requests, identifying security flaws, and assisting team members with debugging and performance improvements.
  
  4. System Monitoring:
• Take responsibility for monitoring production systems. Propose optimizations and provide expert insights to maintain high availability and stability.

Your skills and experience

1. Embrace the AI Era: 

• You view tools like Claude Code not as a replacement, but as an exoskeleton that amplifies your engineering capabilities.
• Take Complete Ownership: From system design to production deployment and monitoring.
• Value Craftsmanship: You write code that is easy for both humans to understand and AI to parse/maintain.

2. Experience:

• 3+ years of professional experience in Golang development.
• Proven experience building serverless applications using AWS Lambda.
• Deep understanding of Separation of Concerns (SoC) and software design patterns.
• Strong experience with NoSQL databases (MongoDB highly preferred).

3. Technical Skills:

• Mandatory: High proficiency in prompt engineering and utilizing Agentic AI coding tools, specifically Claude Code.
• Ability to write clean, maintainable, and highly efficient code.
• Expertise in RESTful API design and implementation.
• Proficiency in version control (Git).
• Strong background in Unit Testing and TDD.
• Ability to write clear and concise technical documentation.

Why you'll love working here

At the core of FireGroup is a deep desire to grow. We’re a passionate team with growth mindsets, turning what we do into a purpose. We’re always exploring how to apply world-class innovations and creative ideas to our work - so we can push further, conquer challenges, and go beyond limits.

In the face of a rapidly evolving e-commerce landscape, we embrace an AI-first approach. Advanced AI tools are embedded in our workflow - not just to boost productivity, but to power smarter decision-making and unlock solutions that serve merchants more effectively. With AI as our co-pilot and a native mindset for technology, we turn complexity into simplicity for those who count on us.

Our ultimate mission is to develop innovative products that comprehensively and effectively solve problems in e-commerce, making online business easy and sustainable for everyone. We believe that the spirit of daring to step up and our distinctive values are the greatest driving forces behind FireGroup's journey from a five-member startup to a team of over 200 colleagues, leading us to greater challenges and successes:

1. Courage - Dare to step up
2. Growth - Grow beyond yesterday
3. Creativity - Think differently
4. Ownership - Own your work
5. Teamwork - Get Stronger together
6. Trust - Give trust, gain trust
7. Empathy - Walk in other's shoes

At FireGroup, our values don’t just live in documents - they live in us. They show up in every decision we make, every product we build, and every story our Firers share. Dive into real stories and everyday actions that bring our culture to life: firegroup.io/culture

And that’s not all - we’ve got some great perks waiting for you, including:

Rewarding Compensation & Benefits

• Competitive salary tailored to your skills and experience
• 13th-month salary & seniority bonus
• Annual salary reviews for outstanding contributions
• 16 days of annual leave, with an extra day for 3+ years of service
• Work-from-home policy for pregnant employees
• Premium healthcare and annual health check
• Special occasion support: marriage, maternity bonuses, and birthday vouchers
• Festive gifts for holidays like Mid-Autumn and Lunar New Year
• Free coffee, tea, juice, and a wide range of snacks
• Well-equipped devices provided based on your role (MacBook/iMac/Macmini/Windows Laptop/Monitor)
• Employee Stock Option Program offer for key contributors

Fast-track Growth:

• Gain exceptional experience by building world-class products used by hundreds of thousands of merchants globally
• Buddy Program to guide and support you throughout your onboarding journey
• Regular seminars and workshops to sharpen both technical and soft skills
• Access to Udemy, internal e-learning platform tailored to your growth
• Recognition programs that celebrate your outstanding contributions

Engagement Activities:

• Sports Club: Football, Badminton, Yoga
• Gym area available onsite
• Monthly/Quarterly team bonding events across business units
• Signature company events: Company Trip, Year-End Party, New Year Kick-off, Women’s Day, Christmas, and Quarterly Town Halls - all designed to celebrate and connect our people.