Software Engineer, Backend
About the Role We are looking for a talented and motivated Backend Engineer to join our team. You will be responsible for building and maintaining scalable, high-performance backend systems that power our products.
What this role actually needs.
About the Role We are looking for a talented and motivated Backend Engineer to join our team. You will be responsible for building and maintaining scalable, high-performance backend systems that power our products. Responsibilities: - Design, develop, and maintain scalable backend services that support our applications and infrastructure. - Implement secure and efficient APIs to support frontend applications and third-party integrations. - Optimize system performance, reliability, and scalability through effective architecture and engineering best practices. - Work closely with product managers, data analysts, and frontend engineers to develop backend solutions that align with business and user needs. - Ensure high availability, fault tolerance, and performance of backend systems. - Monitor system health, troubleshoot issues, and implement improvements to enhance efficiency and stability. Requirements: - Experience with event-driven architectures and messaging systems (Kafka, RabbitMQ, etc.). - Knowledge of caching strategies and performance optimization techniques. - Experience working on large-scale, high-traffic applications. - Familiarity with CI/CD pipelines and DevOps best practices. - Exposure to machine learning or data-driven applications. Company context: Character.AI builds personalized conversational AI agents and the infrastructure that powers them at scale.
Day-to-day expectations
Character.AI lists these responsibilities for the Software Engineer, Backend role.
- Design, develop, and maintain scalable backend services that support our applications and infrastructure.
- Implement secure and efficient APIs to support frontend applications and third-party integrations.
- Optimize system performance, reliability, and scalability through effective architecture and engineering best practices.
- Work closely with product managers, data analysts, and frontend engineers to develop backend solutions that align with business and user needs.
- Ensure high availability, fault tolerance, and performance of backend systems.
- Monitor system health, troubleshoot issues, and implement improvements to enhance efficiency and stability.
What a strong candidate brings
These requirements are extracted from the source listing and normalized for UpJobz readers.
- Experience with event-driven architectures and messaging systems (Kafka, RabbitMQ, etc.).
- Knowledge of caching strategies and performance optimization techniques.
- Experience working on large-scale, high-traffic applications.
- Familiarity with CI/CD pipelines and DevOps best practices.
- Exposure to machine learning or data-driven applications.
Why this listing is more than a copied job post.
Software Engineer, Backend is framed against UpJobz source checks, country scope, compensation visibility, and work-authorization signals so candidates can make a faster go/no-go decision.
United States tech market
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Compensation read
$180K - $300K is visible before the click, so candidates can compare the role against local market expectations before applying.
Work authorization read
Current extracted signal: Open to TN, H-1B, and OPT candidates already in the United States. UpJobz treats this as a search signal, not legal advice, and links visa-sensitive roles back to the relevant visa hub where possible.
Location read
Hybrid roles in Redwood City should be compared against commute, local salary bands, and nearby employer demand.
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- $180K - $300K is visible, so calibrate your application around the posted range.
- Use open to tn, h-1b, and opt candidates already in the united states as part of your positioning so the recruiter does not have to infer it.
- Show concrete examples of succeeding in hybrid environments.
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Source: jobs.ashbyhq.com · Source ID: b063d44b-e1fd-4777-8079-573706a589a0 · Confidence: 92/100 · Last checked: May 7, 2026
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