Senior Software Engineer

Jobs It Is; Województwo mazowieckie; On-site; PLN 220,000 - 360,000; Full time

Job summary

Jobs It Is in Warsaw is seeking a seasoned Full Stack Engineer to design, build and maintain features end to end, from schema to UI, in collaboration with the platform team and forward deployed engineers.

This in-person role requires shipping multiple projects, occasional travel to SF or client sites, and relocating if needed. You should be fluent in English and enjoy solving ambiguous problems with a results-focused mindset.

Qualifications

• 5+ years of genuine full-stack experience.
• Ship real full-stack products; provide repo, live app, or Loom walkthrough.
• Strong in TypeScript and frontend frameworks (React, Svelte, Next, etc.).
• Comfortable with design of systems and writing complex SQL queries.

Responsibilities

• Design, build and maintain features end to end, from schema to UI.
• Run several projects in parallel and ship each one.
• In-person in Warsaw office with relocation to SF as needed.
• Up to one week of international travel per quarter (SF HQ or customer sites).

Skills

Full-stack development

TypeScript

Frontend framework

PostgreSQL

SQL queries

AI coding tools

English fluency

Problem solving

Tools

GitHub

Loom

Git

Job description

Our client is a builder of AI operating systems for complex procurement and distribution. Their Full Stack Engineers work with the platform team and the forward deployed engineers to build the systems their clientele run on. Most of that work means integrating with legacy ERPs and email-driven workflows that move real orders every day.

Interim start in Warsaw. Relocation to San Francisco, USA. Candidates who are not willing to relocate need not apply.

Description:

• Full-time, in person in the Warsaw office.
• Design, build and maintain features end to end, from schema to UI
• Run several projects in parallel and get each one shipped
• Up to one week of international travel per quarter (SF HQ or customer sites)

Requirements:

• 5+ years of genuine full-stack experience
• Absolute grinder. Interested in co-living (though not required)
• You've shipped real full-stack products and can show us one: a GitHub repo, a live web app or a Loom walkthrough
• You've designed systems on your own, not only built someone else's spec
• Strong in TypeScript and at least one frontend framework (React, Svelte, Next, etc.)
• Comfortable in SQL, preferably Postgres. You can write, optimise and debug complex queries, not just call an ORM
• You use AI coding tools every day and understand where the frontier is
• Fluent English, and comfortable working for founders in their early twenties
• Comfortable with ambiguity. Priorities can change week to week
• Low ego, curious, intellectually honest. Focused on outcomes, not on being right