Product Engineer

Proposales AB; Stockholms kommun; On-site; SEK 50,000 - 70,000; Full time

Job summary

Proposales AB in Stockholms län seeks a product developer to transform the proposal process through innovative B2B SaaS solutions. This role involves taking product ideas to launch while working closely with the leadership team.

The ideal candidate will have solid experience in JavaScript and TypeScript and embrace AI in product development. Collaboration and quality focus are key, alongside a firm understanding of what drives product success.

Qualifications

• Experience in taking product initiatives from idea to launch.
• Familiarity with AI agents for product development.
• Fluency in English, both written and spoken.

Responsibilities

• Scope, build, iterate, and launch product initiatives.
• Work with leadership and product team to prioritize projects.
• Maintain high quality and trust in AI-generated outputs.

Skills

AI tools proficiency

JavaScript

TypeScript

React

Next.js

Node.js

PostgreSQL

Architectural judgment

Tools

Vercel

Vercel AI SDK

MCP

LLM based tooling

Job description

Be part of shaping what gets built, from idea to launch, at the intersection of AI and B2B SaaS. At Proposales, we're transforming the way businesses create proposals. By replacing static documents with a new online standard, we're redefining how deals are done, turning proposals into interactive, web-powered experiences. Think of us as building a piece of internet infrastructure for sales.

Your mission

• Take product initiatives from idea to shipped: scope, build, iterate, launch
• Use AI agents as a genuine force multiplier, not just for boilerplate, but for real product development
• Translate business problems into product decisions without needing someone to bridge the gap for you
• Work closely with leadership and the product team to identify what actually matters to build next
• Keep quality high; know when to trust what an agent produces and when to push back on it

What we believe in

• We're serverless first, hosted on Vercel with a monorepo built using Next.js and TypeScript.
• We use AI where it clearly helps, in product and in internal tooling, and we care about reliability, safe handling of data, and keeping automation and human judgment in the right balance.
• We value judgment over credentials, ownership over process, and shipping over speccing.

Technologies you would be working with

• JavaScript / TypeScript
• React, Next.js
• Node.js
• PostgreSQL
• Vercel / Vercel AI SDK
• MCP
• LLM based tooling (Claude, Cursor, or similar)

A bit about you

• You think like a founder: you understand why something is being built, not just how
• You're comfortable going from blank page to production without a detailed brief
• You use AI tools daily and know how to get production quality output from them, not just prototypes
• You have enough engineering depth to catch what agents miss and make sound architectural calls
• You've shipped things: real things, that real people use
• You value clarity and collaboration over rigid processes
• Fluent in English (written and spoken)
• You live in Stockholm and thrive in an office first team culture