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Job details

Senior Software Engineer, Core Services (Backend)

OneSignal is a leading omnichannel customer engagement platform serving billions of messages daily worldwide. They are seeking a Senior Software Engineer to join their Core Services team to develop and maintain scalable backend services using technologies like Rust, Kafka, and PostgreSQL, with a focus on performance and reliability.

Skills

  • Experience building and operating reliable production systems at scale.
  • Proficiency in compiled languages such as Rust, C/C++, Java, or Golang.
  • Strong understanding of distributed systems and data flow.
  • Ability to automate repetitive tasks and enhance operational efficiency.

Responsibilities

  • Architect and implement durable, high-performance backend services.
  • Participate in code and design reviews; contribute to on-call rotations.
  • Resolve production issues ensuring system scalability and reliability.
  • Conduct data analysis, performance monitoring, and optimization.
  • Design synchronous and asynchronous APIs for distributed systems.
  • Design schemas for relational and non-relational databases.

Education

  • Relevant degree in Computer Science or related discipline preferred.

Benefits

  • Competitive base salary with equity program.
  • Remote work flexibility with options for hybrid or onsite at San Mateo office.
  • Comprehensive and inclusive benefits package.
  • Supportive environment promoting work-life balance and personal growth.
To read the complete job description, please click on the ‘Apply’ button
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Average salary estimate

$180000 / YEARLY (est.)
min
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$170000K
$190000K

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OneSignal is building the best platform for businesses to intelligently engage with customers across every channel. We provide a simple interface to push notifications, email, and in-app messages.

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BADGES
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CULTURE VALUES
Customer-Centric
Dare to be Different
Take Risks
Collaboration over Competition
Growth & Learning
BENEFITS & PERKS
WFH Reimbursements
Flex-Friendly
Social Gatherings
Company Retreats
Dental Insurance
Vision Insurance
Life insurance
Learning & Development
FUNDING
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
SALARY RANGE
$170,000/yr - $190,000/yr
EMPLOYMENT TYPE
Full-time, remote
DATE POSTED
July 17, 2025
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