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Senior Full-Stack Engineer (with Kotlin and AI agents experience)

European Union🌐 Remote💼 Full-time🗓 2026-08-06 → 2026-09-26

Core

Senior Full-Stack Engineer building business spend management products (corporate cards) for SMEs in the EU/UK using Kotlin and React/TypeScript.

Role type

Senior Full-Stack Engineer (Kotlin/React)

Builds

Business spend management products and financial tools

Domain

Fintech / Business Spend Management

Deliverable

production ML models | product features

Required skills

Kotlin, React, TypeScript, AWS, AI-native delivery practices, Agent & harness engineering

Preferred skills

Experience moving fluidly between front-end and back-end layers

Technologies

Kotlin, React, TypeScript, AWS, GCP, BigQuery, Slack, Linear, GitHub, Notion

Responsibilities

Deliver across the Kotlin backend and React/TypeScript frontend; Move fluidly between stack layers to unblock delivery; Apply AI-native delivery practices across the CDLC; Multiply the output and quality of the squad by sharing patterns and practices; Embed directly into a client squad as a hands-on Individual Contributor.

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