---
title: "Senior Java Developer at Onoff – Tallinn, Estonia · Hybrid"
canonical: "https://www.metaintro.com/job/senior-java-developer-at-onoff-1cd67cf4-095e-59ee-b115-92c9c2472528"
language: "en"
author: "Metaintro"
---

[![Onoff logo](/api/company-logo?url=https%3A%2F%2Fwww.onoff.app%2Fwp-content%2Fuploads%2F2025%2F07%2Fcropped-oon_favicon-180x180.png&sig=14XyN2ixkF-YC7cOGn1qeCcM1sLJV9sgrlR0KShFb64)](/company/onoff)[Onoff](/company/onoff)
# Senior Java Developer at Onoff

Department: Engineering

Compensation

€5,200 – €6,300/mo

**Setup**
: Hybrid

**Location**
: Tallinn

**Type**
: Full-time

**Level**
: senior

**Posted**
: Sep 8, 2026

## Description

Onoff is hiring a Senior Java Developer to design and build scalable backend services for a global communication platform, influence architecture, own systems from concept through production, and mentor other engineers. The role requires extensive Java backend experience, knowledge of distributed systems, APIs, databases, and scalable architectures, plus experience with Docker, AWS, MySQL, production systems, monitoring, and operational ownership. The position offers hybrid work, competitive compensation, private health plan coverage, travel budget, and continuous learning support.

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