Senior Software Engineer, Backend - World ID
Tools for Humanity is a technology company building products for humans in the age of AI.
Maintainer signals as of 9/2/2026
About Tools for Humanity
Tools for Humanity develops hardware, software, and services connected to World, described as an open-source real-human network. Its products include the Orb for privacy-focused proof-of-human verification, World App for World ID access, digital asset management, wallet functionality, transactions, and Mini Apps, and World Spaces for verification, community programming, and events. The company serves end users and organizations seeking to integrate World infrastructure into their projects.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
Own and operate backend software components by designing, implementing, debugging, testing, instrumenting, and scaling services and APIs. Build SDKs and cloud integrations, develop privacy-preserving attestation and verification mechanisms, improve security, reliability, and performance, and enable third-party developer integrations.
Requirements
- Proven experience designing and developing backend software
- Strong system design skills with focus on scalability reliability and maintainability
- Experience building SDKs and cloud integrations
- Familiarity with privacy-preserving techniques and security best practices
- Strong collaboration communication and prioritization skills
- Ability to operate effectively in ambiguous and changing environments
- Demonstrated ability to learn and apply new technologies quickly
Responsibilities
- Own key backend software components and services
- Design and implement scalable secure systems and APIs
- Build and maintain SDKs and cloud integrations
- Develop privacy-preserving attestation and verification mechanisms
- Improve security privacy compliance reliability and performance
- Debug monitor and instrument systems to ensure reliability
- Collaborate with product managers designers and engineers to deliver features
- Support open decentralized integrations for third-party developers
Benefits
- Healthcare
- Dental
- Vision
- 401(k) plan and match
- Life insurance
- Flexible time off
- Commuter benefits
- Professional development stipend
- Relocation assistance
- Competitive long term incentive package
