Founding Engineer

TechShack; Stockholms kommun; On-site; SEK 800,000 - 1,200,000; Full time

Benefits offered by this job

Equity

Job summary

TechShack in Stockholm is seeking an exceptional Product Engineer to join a hands-on, early-stage AI startup. You will own meaningful parts of the product from day one, building AI-powered features and delivering production software that directly impacts real users.

You will work closely with users to understand problems, design scalable AI systems, and ship iteratively with a small, high-calibre team. This is a roles-driven environment where your contributions influence product direction as the

Qualifications

• Strong software engineering fundamentals.
• Experience shipping production software.
• Experience deploying AI/LLM features.
• Product-minded with a focus on user problems.
• Willingness to own end-to-end stack.

Responsibilities

• Build and ship AI-powered product features.
• Work with users to understand problems and iterate quickly.
• Design and deploy production-ready AI systems using modern LLMs.
• Collaborate with a small, high-calibre engineering team.
• Help shape the product as the company grows.

Skills

Software fundamentals

Prod software delivery

AI/LLM deployment

Product mindset

Ownership

Startup pace

Job description

We're working with an early-stage AI startup in Stockholm that's building AI products from the ground up, and they're looking for an exceptional Product Engineer to join the team.

This is a hands-on role for someone who enjoys building products, working closely with users, and turning ideas into production software. You'll have a high level of ownership from day one and play a key role in shaping both the product and technical direction.

What you'll do

• Build and ship AI-powered product features
• Work closely with users to understand problems and iterate quickly
• Design and deploy production-ready AI systems using modern LLMs
• Work alongside a small, high-calibre engineering team
• Help shape the product as the company grows

What they're looking for

• Strong software engineering fundamentals
• Commercial experience building and shipping production software
• Experience taking AI or LLM-powered features into production
• A product mindset with a focus on solving real user problems
• Comfortable taking ownership and working across the stack
• Someone who enjoys moving quickly in a startup environment
• Build AI products used by real customers from day one
• High ownership with the opportunity to influence product decisions
• Small team where your work has a direct impact
• Competitive salary, equity, and the opportunity to grow with the business

This is an opportunity for engineers who want to build products - not just models - and enjoy working at the intersection of software engineering, AI and product development.