👨🏻‍💻 postech.work

Backend Engineer – Internal Systems (Ruby On Rails, AI)

Arches • 🌐 In Person

In Person Posted 1 week ago

Job Description

Top 3 reasons to join us

Strongly growing business!

Young and diverse!

Talented team of professionals!

Job description

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

Your skills and experience

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)

Why you'll love working here

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!

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