Kilona.io

🚀 About Kilona.io

At Kilona.io, we build high-quality, high-speed web and mobile AI applications. We work with top global startups to create cutting-edge products that are fast, precise, and beautifully engineered. 

Currently, we're expanding our team to support our active mobile AI product with a modern stack.
 

💼 What You'll Do

• Develop and maintain mobile applications using React Native
• Create and optimize backend APIs with Node.js
• Work with relational and non-relational databases
• Refactor and improve code performance and maintainability
• Collaborate closely with a small and focused remote team
   

✅ Requirements

• 2+ years of hands-on experience with React Native (both Expo and CLI)
• 1+ year working with Node.js (Express.js)
• Strong knowledge of JavaScript, ES6+ features
• Confident with Git, React Native navigation, and modern development workflows
• Experience with REST APIs and integrating databases (e.g., PostgreSQL, MongoDB, Firebase, Supabase, AWS DynamoDB, etc.)
• Good communication skills in English (B2 level or higher)
   

✨ Would be awesome if you have

• Experience with mobile app deployment (App Store, Google Play)
• Understanding of CI/CD pipelines for mobile apps
• Experience using AI-powered dev tools (e.g. ChatGPT, Cursor AI, Lovable, V0) to speed up development
   

🧑‍💻 Working Conditions

• Hourly-based payment model (overtime is always paid)
• Fully remote — work from anywhere
• Flexible schedule — we appreciate team overlap but you manage your own time
• Easy time-off policy — take days off when you need, no bureaucracy
• Work on cutting-edge AI products in a fast-paced and supportive environment

🔍 Hiring Process

1. Video intro OR Quick screening call (20 - 30 mins)
2. Technical interview (up to 1 hour)
3. Final interview (optional)
4. Offer 🎉

Interested? Let’s talk! 📨 Drop us a message — we’re always open to meeting like-minded people.

🚀 About the Project

We’re building a web-based AI-powered application designed to help researchers and medical professionals efficiently explore, analyze, and synthesize medical research papers.
The product focuses on speeding up literature review, improving insight discovery, and working with complex scientific data using modern AI tools.

The project is already in active development, and we’re looking for an experienced Web Engineer to help us scale and evolve the platform.
 

💼 What You’ll Do

• Develop and maintain a web application using React.js
• Build and optimize backend services with Node.js
• Integrate AI services (OpenAI and similar models) for document analysis and research workflows
• Work with structured and unstructured data (PDFs, text, metadata)
• Collaborate closely with product, AI, and design stakeholders
• Improve performance, code quality, and system reliability
• Participate in architectural decisions and feature planning
   

✅ Requirements

• 2.5+ years of commercial experience with React.js
• Strong backend experience with Node.js
• Solid understanding of modern JavaScript (ES6+)
• Experience integrating AI APIs (OpenAI, LLM-based services, embeddings, etc.)
• Experience working with REST APIs and databases
• Good understanding of async workflows and data-heavy applications
• Spoken English (confident communication in an international team)

✨ Nice to Have

• Experience with LangGraph / agent-based AI workflows
• Background in AI-powered search, RAG systems, or document processing
• Spoken Polish
• Experience working with scientific, medical, or research-related products

🧑‍💻 Working Conditions

• Fully remote
• Flexible working hours with reasonable team overlap
• Long-term project with real product impact
• Collaborative, no-bureaucracy environment
• Opportunity to work deeply with AI-driven features, not just “API wrappers”

🔍 Hiring Process

• Intro / screening call (20–30 minutes)
• Technical interview
• Final discussion
• Offer 🎉

🚀 About Kilona.io

At Kilona.io, we build high-quality, high-speed web and mobile AI applications. We work with top global startups to create cutting-edge products that are fast, precise, and beautifully engineered.

We’re now looking for a DevOps Engineer to help us prepare the infrastructure of our active React Native + Node.js + PostgreSQL dating app for scaling to 10,000+ daily active users.

This is a short-term engagement (1–2 months to start), with the possibility to extend.

💼 What You’ll Do

• Design and implement scalable infrastructure for a high-load mobile app
• Optimize architecture to support 10,000+ daily active users
• Improve system reliability, monitoring, and performance
• Set up and optimize CI/CD pipelines
• Work closely with a small engineering team to define best DevOps practices
• Review and improve deployment, security, and backup strategies

✅ Requirements

• Proven experience as a DevOps Engineer (~+3 years)
• Experience supporting production systems at scale
• Strong background with cloud platforms (AWS / GCP / Azure)
• Solid knowledge of CI/CD, containerization, and automation
• Experience working with Node.js-based backends
• Experience with relational databases (PostgreSQL)
• Understanding of high-availability system design
• Good communication skills in English (B2+)

✨ Nice to Have

• Experience supporting mobile app backends
• Experience with monitoring tools (Grafana, Prometheus, Datadog, etc.)
• Knowledge of security best practices
• Previous work with startups or fast-growing products

🧑‍💻 Working Conditions

• Part-time engagement (for 1 project, with a prolongation possibility)
• Hourly-based model
• Fully remote — work from anywhere
• Flexible schedule with some team overlap
• Work on a live, fast-growing AI-powered product

🔍 Hiring Process

• Quick intro / screening call (20–30 mins)
• Technical interview (up to 1 hour)
• Final interview (optional)
• Offer 🎉