Senior Full Stack AI Developer (Python/React)

Location: Stockholm, Sweden — hybrid; customer support may require working during US hours.

Salary: 82,500–97,500 SEK per month, plus equity depending on the offer.

Company

hirify.global builds an AI tax preparer for accounting and tax firms, focused on automating complex tax preparation, planning, and review workflows.

What you will do

• Build agentic workflows that mirror tax professionals’ judgment-based processes.
• Develop evaluation and verification systems that measure accuracy against professional standards.
• Build model integrations and tooling that make probabilistic AI systems accurate, transparent, and trusted for high-stakes work.
• Build and maintain full-stack features across AI tax preparation, planning, and review products.
• Own the user experience and backend logic for tax-professional workflows.
• Ship quickly, monitor metrics, improve LLM performance, and keep the codebase clean, typed, and fast as the product scales.

Requirements

• Experience with TypeScript, React, and Python, including complex data-heavy user interfaces and backend services.
• Familiarity with cloud infrastructure on Google Cloud and/or Azure.
• Ability to make decisions with incomplete data and take ownership of outcomes.
• Empathy, curiosity, attention to detail, pragmatism, and a user-focused approach.
• Strong collaboration across product, engineering, and tax functions.

Nice to have

• Experience in fast-paced startups or regulated industries.
• Experience taking a product from 0 to 1 and supporting real users.

Culture & Benefits

• High-paced, high-performance environment with transparent salaries, company finances, stock options, and feedback.
• Minimum 30 days of holiday per year.
• European employees receive mandatory benefits and additional benefits; US employees receive covered platinum-level medical plans and dependent coverage.
• Company-wide offsites every four months.
• Performance reviews every four months, with the possibility of doubling equity by the end of the first year.
• Some customer support is performed during US hours; the role is based in a hybrid Stockholm setup.

Hiring process

• 30-minute introductory call.
• 60-minute technical walkthrough and asynchronous task.
• 120-minute final round with the team.