Full-Stack Engineer for B2B Vertical SaaS Platform

About Us

Nextbeat is a Japan and Singgapore-based technology company building a B2B Vertical SaaS platform for the childcare and nursery industry. Our flagship product serves childcare facilities across Japan with modern, purpose-built software.

We are expanding our engineering team through Nextbeat Singapore Pte. Ltd. and are looking for talented offshore engineers worldwide.

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The Role

You will work as a full-stack engineer on a well-defined SaaS product, collaborating remotely with our Japan-based development team. The Japan team leads architecture and design decisions and provides detailed specifications — your focus is delivering high-quality, maintainable code.

That said, we value engineers with technical depth: you should be comfortable understanding architectural decisions, discussing trade-offs, and proactively suggesting improvements.

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Key Details

• Location: Fully Remote (Worldwide — no geographic restrictions)

• Contract Type: Freelance / Independent Contractor

• Engagement: Full-time (~40 hours/week)

• Compensation: USD $2,000 – $3,000 / month * Negotiable

• Start Date: As soon as available

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What You'll Do

• Backend Development — Build and maintain services using Scala 3 with functional programming patterns (Cats Effect, http4s, doobie), AWS Lambda (serverless)

• Frontend Development — Develop the web application using Angular 18–20 with Signal-based architecture and Ionic Framework (PWA)

• CI/CD — Construct and maintain CI/CD pipelines for quality assurance and deployment reliability

• Collaboration — Communicate technical details with the Japan development team in English via Slack, JIRA, Confluence, and GitHub Enterprise

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Technology Stack

• Backend: Scala 3, Cats Effect, http4s, Tapir, doobie, circe

• Frontend: Angular 18–20, TypeScript, Playwright, Ionic

• Infrastructure: AWS (Lambda, S3, DynamoDB, ECR, ECS, CloudWatch, SAM), Docker, GitHub Actions

• External Services: Auth0, Salesforce, Firebase, OpenSearch

• AI Tools: Claude Code, GitHub Copilot

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Required Qualifications

• 5+ years of development experience with statically typed languages (Java, Kotlin, Scala, C#, etc.)

• 3+ years of hands-on experience with modern frontend frameworks (Angular, React, Vue, etc.)

• 1+ year of experience building and maintaining CI/CD pipelines

• Strong English communication skills (working proficiency or above)

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Nice to Have

• Functional programming experience (Scala, Haskell, F#, Clojure, etc.)

• Application architecture design experience

• Database design, modeling, and performance tuning

• Team leadership or mentoring experience

• Japanese language ability (any level is a plus, but absolutely not required)

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What We Offer

• Fully remote work — work from anywhere in the world

• Collaboration with an experienced Japan-based engineering team

• Clear specifications and design guidelines — no ambiguity in requirements

• Modern tech stack including Scala 3 and AI-assisted development tools (Claude Code, GitHub Copilot)

• Stable, long-term engagement on a well-established SaaS product

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