Software Engineer - AI Platform

Job Description

About Us
HiBob helps modern, mid-size businesses transform the way they manage people, giving HR and managers all they need to connect, engage, develop, and retain top talent. Since 2015, we’ve achieved consecutive triple-digit year-over-year growth, all backed by our amazing team of Bobbers from across the globe, making us the choice HRIS of over ~4500 midsize and multinational companies and over 1 Milion users.
Our HR platform is intuitive, data-driven, and built for the way people work today: globally, remotely, and collaboratively. 

What this role is really about

You're building HiBob's AI platform. The internal system that powers AI capabilities across Product, Customer Success, Sales, Operations, Data, and IT. 

This is a full-stack role where you'll own features end-to-end: design React interfaces for AI workflows, build Lambda functions that orchestrate multi-agent processes, integrate with enterprise systems (Salesforce, Workato, Snowflake), and optimize costs and performance at scale. You'll work with cutting-edge AI while building production-grade systems that handle real business operations. 

If you want to build something that directly enables business growth, work across the full stack with modern tech, and have ownership over a platform that the entire company depends on, this is your opportunity.

• 5+ years of hands‑on software engineering experience building production systems at scale.

• Strong proficiency in Python, with Practical knowledge of databases.

• Strong grounding of LLM/AI application patterns (RAG, tool use, function calling, guardrails) and vendor APIs (OpenAI or similar).

• Experience with vector store  (pgvector, Pinecone, OpenSearch), feature/semantic layers, or retrieval pipelines

• Familiarity with: eval frameworks, prompt/version management, offline/online A/B testing, and cost/latency optimization.

• Clear written and verbal communication; able to drive alignment with concise design docs and reviews.

Nice to have:

• Experience building developer platforms or internal tooling

• Hands-on experience with model optimization, fine-tuning, or distillation techniques.

• Deep experience with cloud infrastructure (AWS), containers (Docker, Kubernetes), and distributed systems.

• Frontend development frameworks such as React.

• Background in SaaS/enterprise environments with compliance requirements (SOC2, GDPR)
  
  

• Build core AI platform services - Design and implement agent orchestration, prompt management, RAG, Connectors, and evaluation pipelines that power AI experiences across the company.

• Develop complex agentic process - Develop a multi-step workflow that coordinates tools and services with proper observability, guardrails, and cost controls (using OpenAI Agent SDK, LangGraph, or a similar framework).

• Build LLM evaluation and optimization process -Develop evaluation harnesses, offline/online experiments, prompt-testing frameworks, and dashboards to balance quality, latency, and spend across all AI services.
  
  

• Company share options plan
• We have a flexible hybrid working model
• Work from home allowance- to get your home office set up!
• Payment for sick leave from the first day
• 2 Social Impact days per year for volunteering
• Annual Headspace subscription and wellness benefits
• Awesome employee referral program- $2,500 for each successful referral with an additional ambassador programme
• 10 bis or cibus/wolt- you get to pick!
• Transportation allowance
• Dog-friendly
• Temporary remote work from anywhere in the world for up to 2 months (after 6 months of employment)
• Fun company and team social events (locally and virtually with our global teams)
• Bob balance days - 4 additional days within a calendar year - Enjoy a company-wide long weekend at the beginning of each quarter