Full-Time

Senior Software Engineer

SDK

Updated on 3/13/2025

OneSignal

OneSignal

51-200 employees

Customer engagement through push notifications

Compensation Overview

$160k - $180kAnnually

+ Equity Program + Comprehensive Benefits

Senior

Remote in USA

Remote work is available in California, New York, New Jersey, Oregon, Pennsylvania, Texas, Utah, and Washington.

Category
Backend Engineering
Mobile Engineering
Software Engineering
Required Skills
Kotlin
Flutter
PHP
JavaScript
Dart
Ruby
Xamarin
Java
TypeScript
C#
iOS/Swift
REST APIs
Android Development
React Native
Unity
Requirements
  • At least 6 years experience working as a software engineer.
  • Deep experience with developing applications for one or more of the following platforms: Android, iOS, Web, Unity, .Net/Xamarin, React Native, Flutter, Cordova.
  • Comfortable working in a distributed team with autonomy.
  • Passion for building tools for frontend developers.
  • Experience interacting with RESTful and RPC APIs.
  • Interest in working with a diverse group of polyglot codebases (Java, Kotlin, Obj-C, Swift, TypeScript, C#, JavaScript, PHP, Java, Dart, Ruby, and more).
Responsibilities
  • Solving challenging business use-cases in a project with elegant, readable code and clear tests.
  • Developing prototypes and analyzing user needs and software requirements to determine feasibility of design within time and cost constraints.
  • Crafting APIs that are both robust and easy to use for a wide range of use cases.
  • Engaging with developers on GitHub, troubleshooting customer issues, and developing or directing software system testing or validation procedures, programming, or documentation.
  • Researching ecosystem trends, upstream software changes, and deepening domain knowledge.
Desired Qualifications
  • Experience writing SDKs, Client Libraries, or other Developer Tools.
  • Broad knowledge of development environments.
  • Active engagement with a developer community.
  • Enjoys interacting with a developer ecosystem and is experienced in leveraging empathy for making better developer products.

OneSignal provides a customer engagement platform focused on push notifications for businesses of all sizes. Its main service allows companies to connect with their customers through personalized mobile and web notifications, enhancing user experience. The platform operates on a freemium model, offering basic services for free while charging for premium features, such as machine learning tools for optimizing message delivery and detailed analytics for tracking performance. OneSignal is designed to be user-friendly, enabling quick setup in about 15 minutes, and can manage high volumes of notifications, sending billions daily. A unique feature is its ability to trigger notifications based on user behavior, allowing for automated engagement. The company distinguishes itself with open-source SDKs and accessible APIs, appealing to developers and making it easy for businesses to implement their services.

Company Size

51-200

Company Stage

Series C

Total Funding

$81.7M

Headquarters

San Mateo, California

Founded

2014

Simplify Jobs

Simplify's Take

What believers are saying

  • Growing demand for personalized engagement solutions boosts OneSignal's market potential.
  • Integration with ActiveCampaign enhances OneSignal's push notification capabilities.
  • Recognition as a 'Market Leader' strengthens OneSignal's industry position.

What critics are saying

  • Increased competition from market leaders like Airship and CleverTap.
  • Dependency on ActiveCampaign integration may affect service delivery.
  • Rapid user growth could strain OneSignal's infrastructure.

What makes OneSignal unique

  • OneSignal offers a seamless multi-channel messaging platform for customer engagement.
  • The platform uses machine learning to optimize message delivery times and personalization.
  • OneSignal's open-source SDKs and API accessibility appeal to developers.

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Benefits

Remote-first collaboration

Focus time

Flexible vacation

Health, dental, & life

Home office & wellness stipend

Learning & development stipend

Fun offsites

Sweet swag

Growth & Insights and Company News

Headcount

6 month growth

2%

1 year growth

2%

2 year growth

3%
The Audiencers
Feb 18th, 2025
60% increase in active users over 3 months: the value of push notifications revealed

To understand what drives success, Pugpig partnered with Airship, OneSignal, PushPushGo and Pushly and found:

Mi3
Oct 1st, 2024
Digital Balance joins forces with OneSignal on customer engagement platform

Digital Balance joins forces with OneSignal on customer engagement platform.

EIN News
Oct 1st, 2024
The Top Push Notification Software Vendors According to the FeaturedCustomers Fall 2024 Customer Success Report Rankings

Market Leaders - Airship, Blueshift, CleverTap, Leanplum, MoEngage, OneSignal, and WebEngage were given the highest "Market Leader" award.

OneSignal
Sep 17th, 2024
OneSignal Named One of HubSpot's Essential Apps for Marketers

OneSignal is proud to announce that OneSignal has been named one of HubSpot's Essential Apps for Marketers for 2024.

ActiveCampaign
Aug 27th, 2024
ActiveCampaign Announces Integration with OneSignal, Automating Push Notification Engagement

Marketing automation platform ActiveCampaign is now integrated with OneSignal, a customer engagement solution for push notifications, email, SMS, in-app messaging, and live activities.