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Inspius

Senior Fullstack (NextJS+Java/Kotlin)

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  • Posted 6 hours ago
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Job Description

About Us

Headquartered in Singapore, Inspius specializes in tech recruitment for Singapore and US companies. We leverage modern automation and AI to source and assess candidates including our own AI technical assessment platform,hacked.sg.

About our client

Our client is an AI-native finance platform that helps companies automate global accounting operations in a unified system, covering AR, AP, expense management, virtual cards, bookkeeping, multi-entity consolidation, and real-time financial reportingpowered by deep integrations and specialised AI agents.

Responsibilities

We're looking forFull-Stack Software Engineersto build and improve core product features end-to-end:

  • Frontend:Next.js (React)
  • Backend:Kotlin (primary) + some Python

You'll work on both new feature development and ongoing improvements to existing systems, from UI all the way to backend services and integrations

What You'll Do

  • Design, build and ship features acrossNext.js frontendandKotlin backend
  • Develop and maintain backend services, APIs, and data models
  • Build performant, user-friendly interfaces using React/Next.js (SSR/SSG)
  • Write lightweight Python scripts or micro-tasks where needed
  • Maintain high standards for code quality, testing, and reliability
  • Collaborate closely with product, design, and other engineers
  • Contribute to architectural and performance improvements as the platform grows

Requirements

Must-Haves

  • Strong experience withNext.js and React
  • Solid backend experience withKotlin, or strongJava(highly transferable) orTypeScript backendexperience and willingness to ramp up on Kotlin
  • Practical familiarity withPython(scripts, small services)
  • Good understanding ofAPI design, backend services, and databases
  • Strong engineering practices: clean code, testing, maintainability
  • Clear communication in English and comfort working in a lean, remote team

Nice to Have

  • TypeScript (frontend or backend)
  • Experience withAWS/GCP, containers (e.g. Docker)
  • Experience infintechor other regulated domains

Benefits

  • Working hour: 9AM 18PM (Vietnam time)
  • Paid-leave (12 days)
  • Public holiday according to Vietnam's public holiday
  • Competitive salary.
  • Continuous learning and development opportunities.

Interview Process

  • Round 1: Inspius Screening

English Test (20 minutes)

Technical Test (Live coding & Theory)

Home assignment

  • Round 2: Personal / Communication Interview background, ways of working, culture fit
  • Round 3: Technical Interview full-stack skills (Next.js + backend), architecture, testing, problem-solving

Other Information:

  • Reporting to:Product Project ManagerandCTO / Engineering Manager
  • Work closely with product, design, and other engineers in a small, high-impact team.
  • Company size is 40 people, with 10 engineers. You'll join a lean, product-focused team with high ownership.

More Info

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About Company

Job ID: 136412293