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Backend Engineer – Internal Systems

アーチーズ
Full-time
On-site
Japan

Share Knowledge, Empower the World

Arches is a global platform for expert knowledge, strategic solutions, and talent, with a particular strength in Asia. We connect people and insights to help organizations make better decisions and drive real impact. At Arches, titles don't drive us, purpose does. We empower ambitious professionals to grow fast and work globally with the flexibility to thrive in their own way.

Since 2019, we’ve grown 6× to become a global knowledge platform connecting 160,000+ experts across industries. With offices in 8 cities and a team of ambitious professionals from 15+ nationalities, we help the world’s top consulting firms, investors, and Fortune 500 companies make smarter decisions.

Backed by $6M+ funding and cutting-edge technology, we’re scaling faster than ever — and there’s space for bold talent to grow with us.

Learn more about us: Arches on LinkedIn



INDUSTRY OVERVIEW

The Expert Network Services (ENS) industry connects our clients (consulting and investment firms) with specialized insights from top experts. With a strong focus on the Asia-Pacific region, our team is fluent in the languages ​​​​​​​​​​​​​​​​across the area and has unmatched recruitment capabilities to find experts from any industry or niche.

ROLE OVERVIEW

As a Backend Engineer at Arches, you will collaborate closely with two senior engineers to develop and continuously improve our internal systems that support core business operations.

RESPONSIBILITIES

  • Develop, test, and operate Ruby on Rails applications for internal systems
  • Implement authentication and authorization mechanisms (eg, JWT)
  • Build, document, and maintain RESTful APIs
  • Design, optimize, and maintain MySQL databases using ActiveRecord and raw SQL
  • Support application development, deployment, and operations using Docker and AWS

REQUIREMENTS

Essential Qualifications

We value strong AI-driven learning ability over experience with a specific tech stack.

  • 3–5 years of backend development experience, or equivalent professional capability
  • Strong ability to learn quickly using AI tools (LLMs, AI coding assistants, etc.)
  • Experience with any modern backend framework (Ruby on Rails not required) or an equivalent solid technical foundation
  • Good understanding of RESTful APIs
  • Basic knowledge of relational databases (RDB) and experience with ORMs
  • Experience working in a GitHub-based team environment (pull requests, code reviews)

Key Attributes & Preferred Experience

  • AI & Development Mindset
    • Experience with AI-driven development or hands-on use of AI coding tools
    • Experience learning or working with Ruby on Rails
  • Infrastructure & DevOps
    • Basic knowledge of AWS
    • Experience with Docker and ECS (Fargate)
    • Familiarity with CI/CD pipelines , especially GitHub Actions
    • Experience with logging and monitoring tools (eg, Sentry, CloudWatch)
  • Security
    • Basic understanding of application security principles
    • Familiarity with security scanners and WAF-level security concepts
  • Additional Tech Stack (Nice to Have)
    • Experience with Redis, ElasticSearch / OpenSearch, or BigQuery
    • Basic understanding of frontend technologies (JavaScript / TypeScript, React)

BENEFITS

Compensation & Benefits

  • Competitive base salary with performance reviews every year
  • Annual Bonus – 1-month gross salary
  • Paid Leave – 12 days of annual leave, plus additional paid leave for significant life events and 8 days of sick leave
  • Private Medical Insurance

Career Growth

  • Rapid Career Advancement – ​​Tackle challenging problems for top startups and gain skills for the global stage, with opportunities for swift promotions
  • Build a High-Caliber Network – Collaborate with and learn from top industry leaders and decision-makers, expanding valuable connections for career growth

Engagement

  • Enjoy a vibrant work environment with team activities, quarterly dinners, company trips, social gatherings, and office snacks and drinks. Support for employee well-being also includes sports clubs (badminton, golf, football, etc.)
  • Flexible Work Arrangements

Arches is more than a company—it's a movement to democratize expertise. We're building a future where knowledge is accessible to all, and you can be a driving force in this transformation. Join our team of passionate professionals, backed by visionary investors, and make your mark on the global stage!



Apply now
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