Language

en ar de es fr it pt ru zh

Java Developer

Onoff • Telecommunications • Java • 1 day ago

Smart Apply

Similar jobs

1,344,763open jobs

78,699companies

206,744added this week

Salary

$47k – $67k per year

Location

Hybrid (Tallinn, Estonia)

Employment

Full-Time

Confirmed on the employer's own hiring board on Oct 8, 2026. First seen by Alion on Sep 4, 2026.

Overview

Company

Impact

Profile match

Onoff

Onoff lets users add extra phone numbers to a single handset through a software SIM, separating professional and private life. Its business version gives companies managed second lines for employees without extra hardware. The company is headquartered in Paris.

onoff.app • HQ: Paris, France • Telecommunications • Est. 2014

Backed by LeanSquare

Join Onoff, a rapidly growing telecom SaaS company, as a Mid or Mid-Senior Java Developer. In this role, you will build and scale high-availability backend systems, design APIs and infrastructure, mentor others, collaborate across teams, and own projects from idea to impact. You should have strong Java expertise, experience with Docker, MySQL, and AWS, a leadership mindset, sharp problem-solving skills, product thinking, and a startup energy. Enjoy competitive compensation, extra time off, a private health plan, a travel budget, continuous learning opportunities, and a positive company culture.

Missions

Building and scaling high-availability backend systems for a global communication platform.
Designing APIs and infrastructure that are fast, secure, and built to last.
Mentoring others while staying hands-on, collaborating across product, design, and engineering to ship meaningful solutions.

Free account

Stop reading job ads. Get the ones that fit.

One free account turns this page into a shortlist built around your stack, your level and your pay.

Match on every job. Stack, seniority, pay and location, scored against your profile.

1,344,763 open roles. Read straight off company career pages, refreshed every day.

Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.

3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.

Create a free account Continue with Google

Free forever. No card. Under a minute.

Your match

How well do you fit this role?

Two answers are enough for a real match. No account needed.

Check my fit

Answers stay in this browser until you create an account.

Recommended for you based on this role

Backend

Similar stack

Same company

Tallinn

Middle Kotlin разработчик (IDP Verification Station) 11 min ago

≈ $20k – $39k per year (Estimated) • In office • Moscow

Go

Java

Kotlin

Java

Spring Boot

Spring Data JPA

Kotlin

Mockito

Kotlin Coroutines

MockK

Databases

PostgreSQL

Apache Kafka

Apache Ignite

Mobile

JUnit

DevOps

OpenShift

Istio

Prometheus

ArgoCD

Jenkins

Docker

Kubernetes

Grafana

Service Mesh

Amazon S3

Apply

Back-End Developers 12 min ago

Remote (Africa) • Full-Time • Johannesburg

Python

JavaScript

Java

PHP

TypeScript

C#

Node JS

Databases

MySQL

PostgreSQL

MS SQL

DevOps

GCP

Azure

CI/CD

Git

AWS

Docker

Kubernetes

Management

Agile

Apply

Field Software Engineer, Capture Operations 1 hour ago

In office • PhD • Manila

Python

JavaScript

TypeScript

SQL

Databases

PostgreSQL

AI/ML

AI Agents

Frontend

React.js

Mobile

React Native

DevOps

Linux

Management

Slack

Apply

Java developer (Тарифные модели) 17 min ago

≈ $29k – $71k per year (Estimated) • In office • 5+ years exp • Moscow

Java

SQL

Java

Hibernate

Gradle

Databases

PostgreSQL

DevOps

OpenShift

Jenkins

Git

Management

Confluence

Jira

Agile

Scrum

UML

Waterfall

Apply

Разработчик Directum (поддержка 1 и 2 линия) 16 min ago

≈ $17k – $45k per year (Estimated) • Remote (likely EAEU) • Moscow

SQL

C#

1C

C#

.NET

Management

Directum

Apply

Staff Software Engineer 7 hours ago

$105k – $195k per year • In office • 10+ years exp • Bachelor's Degree • Irving

Python

Java

SQL

Scala

Databases

Databricks

Delta Lake

AI/ML

Spark

AI Agents

RAG

DevOps

Terraform

Ansible

GCP

Azure

CI/CD

AWS

Docker

Kubernetes

Management

Agile

Scrum

Apply

Director, Data Engineering 7 hours ago

$112k – $161k per year • In office • 6+ years exp • Chicago

Python

Java

SQL

C#

Databases

MS SQL

AI/ML

Spark

DevOps

Rest API

Azure

AWS

Analytics

Tableau

ETL/ELT

SSIS

Apply

Junior Developer 7 hours ago

≈ $10k – $23k per year (Estimated) • In office • Full-Time • Chon Buri

Python

JavaScript

PHP

PHP

Laravel

CodeIgniter

Databases

MySQL

MS SQL

Frontend

Vue.js

JQuery

Apply

SharePoint Administrator/Developer 7 hours ago

$104k – $166k per year • In office • 10+ years exp • High School Diploma • United States

Java

SQL

Databases

PostgreSQL

DevOps

Rest API

Azure DevOps

GitHub Actions

GitLab CI

Azure

CI/CD

Jenkins

GitHub

Management

Power Automate

Power Apps

SharePoint

Agile

Waterfall

Apply

Senior Client Support Engineer 7 hours ago

≈ $11k – $27k per year (Estimated) • In office • 4+ years exp • Bengaluru

Java

SQL

Java

Apache Tomcat

DevOps

SLI/SLO/SLA

Windows

Unix

Apache HTTP Server

Analytics

Microsoft Excel

Management

ITIL

Microsoft Office

Apply

Senior Java Developer 1 day ago

$70k – $85k per year • Hybrid • Full-Time • Tallinn

Java

Apply

Fullstack Software Engineer - Romania 1 day ago

Hybrid • Full-Time • Bucharest

JavaScript

Java

Frontend

React.js

DevOps

Grafana

Apply

Lifecycle CRM Manager B2B - Paris 1 day ago

≈ $44k – $84k per year (Estimated) • Hybrid • Full-Time • 4+ years exp • Paris

Apply

Junior SDR: Outbound Sales - Paris 1 day ago

$45k – $50k per year • Hybrid • Full-Time • Paris

Marketing

LinkedIn

Apply

Fraud Specialist 1 day ago

$34k per year • Hybrid • Full-Time • 2+ years exp • Bucharest

Apply

Senior Full Stack Developer 1 day ago

$77k – $95k per year • In office • Full-Time • Tallinn

Python

Java

Databases

Apache Kafka

AI/ML

Machine Learning

Apply

Senior Java Developer 1 day ago

$70k – $85k per year • Hybrid • Full-Time • Tallinn

Java

Apply

Software Engineer - AML Risk 2 days ago

$57k – $77k per year • In office • Full-Time • 2+ years exp • Tallinn

Java

Java

Spring Boot

Databases

Apache Kafka

AI/ML

Machine Learning

Apply

Fullstack Engineer - Treasury Money Movement 3 days ago

$57k – $77k per year • Equity • In office • Full-Time • 3+ years exp • Tallinn

Java

SQL

Java

Spring Framework

Spring Boot

DevOps

Rest API

CI/CD

Apply

Head of Marketing 1 day ago

≈ $53k – $132k per year (Estimated) • Remote (Czech Republic, Turkey, Estonia, Georgia) • Full-Time • Tallinn

PHP

PHP

WordPress

AI/ML

Claude

AI Agents

Apply

This is one of many

1,344,763 more open roles from verified company boards, updated every day.

Browse all jobs Get matched roles