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Hoshii AI

Software Engineer (Platform)

Platform On-site
Apply
Location Platform
Workplace On-site
Language English
Last verified June 4, 2026

Our Blind Spot

We are currently growing faster than our infrastructure can follow, running around with duct tape to make our systems reliable while relentlessly shipping new features as well. We are looking for a Software Engineer who will be building and maintaining hOS, the base platform that enables AI agents to swiftly turn emails into one-click ERP automations. You will be an integral part of our engineering team in order to ensure a seamless onboarding for our customers, guaranteeing they receive the best possible experience while building the first system existing as such. You will join the founding team of young, talented engineers contributing to taking Hoshii to the next level.

Key Responsibilities

  • Architect and maintain reliable, high-performance backend systems, while dealing with the non-deterministic nature of AI agents.
  • Develop and maintain the platform side of hOS, the operating system on top of which agents execute their skills with knowledge.
  • Integrate and maintain various ERP and CRM systems into our platform to enable one-click automations.
  • Collaborate with customers to identify integration needs & challenges, and deliver effective solutions tackling them.
  • Monitor and troubleshoot production issues across services and levels of the stack, and promptly resolve business-critical disruptions that impact our customers.
  • Write clean, tested, maintainable code and documentation.

Your Profile

We are looking for team players with a growth mindset and an entrepreneurial spirit:

  • Strong coding and debugging skills.
  • Proven experience building and maintaining backend applications using Go, Java, C# or similar.
  • Proficiency with RESTful API design and microservices architecture.
  • Proficiency with relational databases (Postgres) and familiarity with No-SQL (MongoDB).
  • Proficiency with DevOps cycles: from deployment (Docker) to orchestration (Kubernetes) and monitoring (Grafana).
  • Familiarity with message brokers (e.g., RabbitMQ, Kafka) and their use in decoupling systems and scaling load.
    • Plus: Familiarity with distributed systems concepts (e.g., CAP theorem, consensus protocols) and microservice patterns, and their practical application to solving real-world problems.
  • Plus: Familiarity with ERP systems.
  • Excellent communication skills in English, good command of German.
  • A drive to work hands-on with clients while iterating based on user feedback.
  • Strong sense of ownership: you love to take the lead on projects and ensure they reach success.

What We Offer

  • Autonomy and Ownership: You’re in charge of your time at Hoshii; decide what you want to do, align with the team, and go for it!
  • Stock Options (VSOP): Ever owned your impact? Well, at Hoshii you get stock options, allowing you to get something back from our collective success story.
  • A World-Class Team: We’re a team of servant leaders who work hard and put customers first; we hail from top companies and universities, and we hold ourselves to the highest standards.
  • Amazing Office Location: We have a lakeside location in Zürich with cozy corners to relax, fostering a comfortable environment where you can thrive.

How to Apply

Send an email to [email protected] with your CV, your GitHub/GitLab link, and a short introduction about yourself.

Subject: Job Application: Software Engineer (Platform)