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 to become a global knowledge platform connecting 200,000+ 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.

Arches was certified as:

• Winner of the LinkedIn Impact Awards 2026
• Great Place to Work® Japan 2026
• One of Japan’s fastest-growing companies (KUSABI Award 2025)

Learn more about us: Arches on LinkedIn

Arches（アーチーズ）は、世界中の専門家の『知識・経験』という無形資産をシェアし、企業のビジネスを加速させる「知見」のグローバルプラットフォームです。人と知見をつなぐことで、企業のより良い意思決定と真のインパクト創出を支援しています。Archesを動かすのは、肩書きではなくパーパスです。意欲ある人材が、自分らしいスタイルでグローバルに成長できる環境を提供しています。
2019年の創業以来20万人以上の専門家を業界横断でつなぐグローバルナレッジプラットフォームへと進化しました。8都市にオフィスを構え、15以上の国籍を持つメンバーが集うチームで、世界トップクラスのコンサルティングファーム、投資家、Fortune 500企業の意思決定を支えています。
600万ドル以上の資金調達と最先端テクノロジーを基盤に、かつてないスピードで成長中。挑戦を恐れないタレントが共に成長できるフィールドが、ここにあります。

• LinkedIn Impact Awards 2026
• Great Place to Work® Japan 2026 「働きがい認定企業」選出
• KUSABI Award 2025 受賞 — 「ビジネスグロース賞」を受賞

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

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!