AI Engineer
- Campus Sofia
- Senior
- Expertise: Technology
- Skills: AI, Python, TypeScript, React, Machine Learning, English
- Employment: Employed
- What you'll do
- Your qualities and skills as AI Engineer
- What’s in it for you
- Get to know iO
- What your colleagues say
- Your application, step by step
What you'll do
AI Engineer - iO Bonzai AI Platform
Are you an AI Engineer passionate about building production-ready AI systems? Do you want to work on cutting-edge AI technology and help shape the future of AI automation? Join our in-house startup iO Bonzai and be part of something groundbreaking!
You'll combine the energy and speed of a startup with the clients, stability, and resources of iO. We are looking someone to join our office in Sofia.
As AI Engineer for iO Bonzai, you'll build and optimize our AI & Automation platform. You'll work on conversational AI, agentic workflows, RAG systems, and integrations with multiple AI models. You'll be hands-on with code, collaborate with a talented team, and contribute to a productEng used by both internal teams and external clients.
You'll be part of the multidisciplinary product development team (Lead AI Engineer, Software Engineers, Cloud Operations, Product Manager) and work closely with business development & customer success teams. You report to the Lead AI Engineer & Product Manager.
iO Bonzai is our proprietary AI & Automation platform that makes the power of AI accessible to both internal teams and external clients. It's an ecosystem where we make generative AI available through Chat, Apps, and Connect.
What you'll do:
Develop AI features and capabilities for the iO Bonzai platform using modern AI frameworks
Build conversational AI experiences including custom AI assistants and chatbots
Implement RAG (Retrieval-Augmented Generation) systems to connect AI with knowledge sources
Create AI automation workflows using tools like n8n and MCP (Model Context Protocol)
Integrate multiple AI models (Azure OpenAI, Google Gemini, Anthropic) via LiteLLM and LangChain
Develop agentic AI solutions that can execute tasks autonomously
Build and optimize prompts for various use cases and industries
Implement observability and monitoring with Langfuse to ensure AI quality
Work with vector databases for semantic search and context retrieval
Collaborate with Cloud Operations on scalable Azure infrastructure
Stay up-to-date with AI developments and propose new features and improvements
Your qualities and skills as AI Engineer
3+ years of experience as Software Engineer, AI Engineer, or Machine Learning Engineer
Full stack programming skills in Python, TypeScript & React
Experience with LLMs and generative AI (OpenAI, Anthropic, Google, or similar)
Familiarity with AI frameworks like LangChain, LlamaIndex, or similar orchestration tools
Understanding of prompt engineering and how to optimize AI outputs
Experience with APIs and building integrations
Knowledge of cloud platforms (preferably Azure)
High degree of Gen AI adoption - you actively use AI tools in your daily work
Problem-solving mindset - you enjoy tackling complex technical challenges
Team player - you collaborate well and share knowledge
Good communication skills in English
Eagerness to learn - AI is evolving fast and you love keeping up
Nice to have
Experience with MCP (Model Context Protocol), n8n, LiteLLM, MCP Context Forge
Knowledge of conversational AI platforms (LibreChat, Botpress, or similar)
Experience with vector databases (Azure AI Search, Weaviate etc)
Understanding of multi-agent systems and orchestration
Experience with workflow automation tools (n8n, Zapier, Make)
Knowledge of RAG optimization techniques
Understanding of eval tools in AI systems
What’s in for you
26 days of vacation days
Based on a 40-hour work week, you have 26 days of paid leave.
Additional Health And Dental Insurance
Covering patient and outpatient care, health and dental care, reimbursement of costs for prescribed medicines, pregnancy and birth coverage.
Hybrid working
A good work-life balance is super important. Together with your team, you’ll decide when and where you work.
Healthy office snacks and specialty coffee
At our campus, we provide fresh fruits, healthy snacks and specialty coffee beverages throughout the day.
Personal training budget
Each year, you’ll get a budget of €3,000 to develop yourself, in your profession or as a person, through training, events, or courses.
Celebrating together
If there’s something to celebrate, we know how to party! From time to time, the party team at your campus will organise the best (theme) parties.
What we offer
Knowledge forms the basis of everything you do at iO. You'll grow by working on the most innovative AI platform in the market. You'll shape your personal growth path completely yourself, supported by a personal development budget. Additionally, you'll participate in various AI initiatives, Expert Groups, and innovation projects.
Interested? Apply now and let's explore how you can lead the technical development of iO Bonzai together.
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- #LI-Hybrid
What’s in it for you
26 days of vacation days
Based on a 40-hour work week, you have 26 days of paid leave.
Additional health and dental insurance
Covering patient and outpatient care, health and dental care, reimbursement of costs for prescribed medicines, pregnancy and birth coverage.
Hybrid working
A good work-life balance is super important. Together with your team, you’ll decide when and where you work.
Healthy office snacks and specialty coffee
At our campus, we provide fresh fruits, healthy snacks and specialty coffee beverages throughout the day.
Personal training budget
Each year, you’ll get a budget of €3,000 to develop yourself, in your profession or as a person, through training, events, or courses.
Celebrating together
If there’s something to celebrate, we know how to party! From time to time, the party team at your campus will organise the best (theme) parties.
Get to know iO
- 2,000+colleagues
- 13campuses
- 5countries
- 26nationalities
- 10+awards in the past year
- ∞growing, learning and challenging yourself
What your colleagues say
Pop talks, pair programming and even UNO? That's how Maaike leads a team at iO.
Maaike Hellemans
Technical Lead JavaFrom SEO expert to content strategist and - today - a copywriter. Experience Pieter's growth story at iO.
Pieter Moons
CopywriterRefreshing perspectives mean Ronald learns something new every day.
Ronald van der Horst
Lead Software DeveloperNakita feels fully supported in her professional development at iO.
Nakita Verbruggen
Teamlead CampaigningFor Lennard, it’s the fact that iO supports open source that’s an extra dimension to his work.
Lennard Swaneveld
Senior Drupal DeveloperMariam on the best parts of her jobs. Personal connections, rewarding work and great collaborations.
Mariam Gooijer - Berrezzouk
Corporate RecruiterFor Marleen, continuous change and evolution are an important part of her iO career.
Marleen van den Brand
DesignerMarcel’s insatiable curiosity for LEGO leads to eye-opening workshops.
Marcel de Jong
Digital StrategistAfter an inspiring meeting with Klaas, Lars takes a surprising step in his iO career.
Lars van Tulden
CRO consultantPatrick and his team set up a team hackathon in search of innovative solutions.
Patrick de Bie
Software Developer
Your application, step by step
Working together, making an impact and growing: it all starts with the right connection. That's why we'd like to get to know you and want you to get to know your future colleagues too.
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Let's get to know each other
We like to act quickly. If we can sense a match, we'll get in touch soon for a virtual introduction. This way, both you and we can see if there's a good fit.
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Come say hi
How can your knowledge, skills and experience shine at iO? During a conversation with your future team lead, we’ll discuss interesting opportunities for you in our blended agency.
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Meet the team
There are many people here who’d love to meet you! Your potential colleagues will join us at the table. And of course, you'll get a full campus tour.
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Join the team!
Are we all excited? Congratulations! Go ahead and sign that contract. Together, we'll discuss the practical details and ensure you have everything you need to get started at iO.
FAQ
Apply now
Ready for an exciting career at iO? Apply using this form or through LinkedIn. We’ll contact you soon.