Kalmus Labs

Study & tutoring - finally feels right.

Contact us Join us

Purpose

Problem

AI is reshaping work. People get reduced to spreadsheet rows. Learning still feels lonely: PDFs, jargon, tab-hopping between translators and explainers - zero support, zero flow.

  • No built-in help or translation
  • Constant context switching
  • No dialogue, no guidance

Belief

Work and study should feel human. We value equity, growth, and real ownership. You should not wait for a layoff - you should build your future.

  • Human-first, builder culture
  • Equity and long-term upside
  • Freedom, responsibility, momentum

Solution

We are building human-centered AI tools for learning. Our first prototype, BookBuddy, turns any document into a guided conversation that adapts to you.

  • Explains concepts in plain language
  • Asks good questions; builds mastery
  • Feels like a tutor - not a chatbot
BookBuddy preview

BookBuddy

Turn any document into a personal learning session.

Join Us

Build the future with us - not as a cog, but as an owner.

🧩 Core Engineering

Ship the core product: architecture, APIs, and interfaces.

👨‍💻 Tech Lead

Shape the architecture and ship from MVP → v1.

  • Equity from day one
  • Fast decisions, real ownership
  • LLM pipelines, quality foundations
Apply now

🛠️ Backend Engineer ×2

Build robust APIs, data flows, and AI/RAG services.

  • FastAPI, Postgres/Redis, CI/CD
  • Vector DBs & embeddings
  • Own reliability & performance
Apply now

💻 Frontend Engineer ×2

Craft a fast, elegant UI that feels calm and alive.

  • Modern React stack
  • Clean components & state
  • Polish, accessibility, speed
Apply now

🎨 Design & Story

Define the feel, voice, and visual identity of BookBuddy.

🎨 Product Designer

Define our visual language, UX, and design system.

  • Figma, prototypes, usability
  • Design system from 0 → 1
  • Pixel-perfect delivery
Apply now

✨ Motion / Illustrator

Make the brand feel alive with motion & illustration.

  • Micro-animations for web/app
  • Illustrations & storytelling
  • Lottie / AE exports
Apply now

📣 Community / Content / PR

Shape our voice, grow awareness, and tell the story.

  • Socials, newsletters, PR
  • Launch touchpoints & ads
  • User feedback → messaging
Apply now

🚀 Delivery & Quality

Ship to users with speed, reliability, and polish.

📱 Mobile Engineer

Bring BookBuddy to iOS/Android with delightful UX.

  • Ship core flows & offline
  • API integrations, auth
  • Perf & animations
Apply now

⚙️ DevOps / Infra (PT)

CI/CD, cloud, observability — speed with reliability.

  • Docker & GitHub Actions
  • AWS/GCP cost-smart setups
  • Monitoring & security
Apply now

🧪 QA Engineer

Own quality across API, web, mobile, and AI flows.

  • Manual + automation
  • Cypress/Playwright, Postman
  • Clear bug reports, fast loops
Apply now