Senior Backend Engineer
@ Zoft AI

Hybrid
$150,000
Hybrid
Full Time
Posted 22 days ago

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XXXXXXXXXX XXXXXXXXX XXXXXXX******* @zoftai.com
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Job Details

About Zoft AI

Zoft.ai is an AI workflow automation platform that connects business systems, APIs, and AI agents — enabling companies to automate complex processes, handle conversations, and streamline operations with intelligence. We’re building the next-generation backend for AI-driven automation, combining real-time intelligence, scalable integrations, and modern event-driven architecture.

Your Role

As a Senior Backend Engineer, you will architect and develop high-performance backend services using Node.js, TypeScript, Fastify, and Express. You will build multi-app integrations across third-party platforms and design scalable APIs and event-driven microservices to power AI workflows and automation logic.

  • Collaborate with AI, product, and DevOps teams for model integration.
  • Lead system design discussions and implement robust architecture patterns.
  • Optimize backend performance with asynchronous patterns and caching.
  • Participate in code reviews, mentoring, and open-source contributions.
  • Ensure security, reliability, and scalability of backend systems.

Requirements

Deep expertise in Node.js, TypeScript, and frameworks like Fastify/Express. Strong fundamentals in data structures, algorithms, and system design with proven multi-app third-party integrations experience. Solid knowledge of asynchronous programming, event-driven architecture, distributed systems, PostgreSQL/MongoDB, Redis, and messaging queues. Understanding authentication, API security standards, Docker, CI/CD, and cloud environments (AWS/GCP) are essential. Open-source contributions or a strong GitHub presence is a plus.

Bonus Skills

Experience with workflow automation engines, AI integration layers, building APIs for multi-tenant SaaS, and familiarity with serverless systems and real-time streaming. Startup or founder/CTO experience is preferred.

Why Join Us

Build core infrastructure for AI and automation at scale, work with a founder-led team, enjoy competitive compensation with potential equity, and gain freedom to innovate while accessing cutting-edge AI technology and global-scale integration challenges.

How to Apply

Send your GitHub, LinkedIn, resume, or portfolio showcasing notable projects or open-source work to: founder@zoftai.com — subject: Senior Backend Engineer - Node.js / TypeScript.

Key skills/competency

  • Node.js
  • TypeScript
  • Fastify
  • Express
  • Microservices
  • API Design
  • System Design
  • Event-driven
  • Cloud (AWS/GCP)
  • CI/CD
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How to Get Hired at Zoft AI

🎯 Tips for Getting Hired

  • Customize your resume: Highlight Node.js and system design skills.
  • Showcase project portfolios: Include relevant open-source work.
  • Tailor your cover letter: Emphasize backend expertise and integrations.
  • Prepare for technical interviews: Practice algorithms, design, and debugging.

📝 Interview Preparation Advice

Technical Preparation

Review Node.js and TypeScript fundamentals.
Practice designing scalable microservices.
Study event-driven and async programming.
Refresh knowledge on Docker and CI/CD.

Behavioral Questions

Describe a time you led design discussions.
Explain your approach to mentoring peers.
Share examples of overcoming project challenges.
Discuss collaboration with cross-functional teams.

Frequently Asked Questions