Senior AI Engineer

Cortex; Poland; Remote; PLN 725,000 - 908,000; Full time

Job summary

A leading software company based in Poland is seeking a Senior AI Engineer to drive impactful projects in AI. The role focuses on building AI applications and collaborating with teams to enhance developer experiences. Ideal candidates have a strong background in software engineering and extensive experience with AI tools. This position offers a competitive salary and comprehensive benefits including equity and unlimited PTO.

Benefits

Competitive salary and equity

National medical, dental & vision insurance

Unlimited PTO

$400 monthly perks stipend

401k plan

Remote & flexible working hours

Gender-neutral parental leave

All-Company Retreats

Qualifications

• 5+ years of product-focused engineering experience.
• Proven experience building and shipping LLM applications.
• Experience with production-grade AI patterns.

Responsibilities

• Build production-ready AI applications for our product.
• Collaborate with AI + Data team for agentic capabilities.
• Work with customers to understand AI needs.

Skills

Building production-ready AI applications

Collaboration with AI + Data team

Understanding customer AI needs

Experimentation with open-source models

Familiarity with modern AI tools

Side projects or personal experimentation

Education

Bachelor's degree in Computer Science or related field

Tools

OpenAI

Hugging Face

LangChain

Vector DBs

Job description

Cortex is the enterprise Internal Developer Portal built to accelerate the path to engineering excellence. Customers like Blackstone, Xero, Fanatics, and Canva use Cortex to abstract away complexity for developers with a single interface for all their engineering tools, templates, and tasks. By providing a clear view into the health and state of every software component, Cortex helps engineering teams drive progress to goals, optimize productivity, reduce technical debt, and build efficient software and teams.

We’re fully remote and welcome candidates from anywhere in the US! We have all-company offsites a few times a year where we fly the whole team out to meet in person, build stronger relationships, kick off important projects, and have fun!

The Team

We are a mighty group of ~100 passionate individuals excited about building a product that developers love. We recently raised $60M in Series C Funding led by Scale Ventures (with participation from Sequoia, IVP, and others) to build the future of developer experience. You can read more about it here.

Senior AI Engineer

We’re seeking a Senior AI Engineer to join our team and lead the next chapter of AI at Cortex. As a Senior AI Engineer, you will partner with our CEO and CTO on high-impact, high-visibility projects that are critical to our long-term strategy. This is a foundational role at the intersection of software engineering and ML, with a focus on shipping performant AI products.

• Build production-ready AI applications and LLM-powered features on top of our product
• Collaborate closely with our AI + Data team to help build agentic capabilities for our IDP
• Work with customers to understand their AI needs and build developer experiences powered by LLMs
• Experiment and evaluate open-source models to prototype new use cases and translate learnings into production systems
• Bachelor's degree in Computer Science or related field, or equivalent work experience
• 5+ years of product-focused engineering experience
• Proven experience building and shipping LLM applications or AI-powered products
• Experience with modern AI tools (e.g., OpenAI, Anthropic, Hugging Face, LangChain, RAG, vector DBs, etc.)
• Familiarity with production-grade AI patterns (e.g. fine-tuning models, model evaluations, observability, etc.)
• Side projects and personal experimentation with AI models or tools are a must

• Competitive salary and equity
• National medical, dental & vision insurance (we cover 100%!)
• Fully covered life insurance
• $400 monthly perks stipend
• $1000 yearly Learning & Development stipend
• 401k plan
• Pet Insurance
• Unlimited PTO
• Remote & flexible working hours
• Gender-neutral parental leave
• All-Company Retreats

Our job titles may span more than one career level. The base pay for this role starts between $200,000 and $250,000. The actual base pay is dependent upon many factors, such as training, transferable skills, work experience, business needs and market demands. The base pay range is subject to change and may be modified in the future. This role is eligible for equity and benefits.

Cortex is committed to a diverse and inclusive workplace. Cortex is an equal opportunity employer and does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status. For individuals with disabilities who would like to request an accommodation, please email [e-mail]

Equal Employment Opportunity statements and related information are provided as part of our candidate experience policy.