As a Senior Software Engineer on TnT, you'll take real ownership of features and systems across both domains. You'll work closely with product, design, and partner engineering teams to ship meaningful improvements to enterprise customers.In this role, you will:Own a TnT subdomain: Take technical responsibility for a component—whether it's our OAuth/SSO flows, audit logging infrastructure, telemetry ingestion pipelines, or fine-grained permissions model.Drive features end-to-end: Write design docs, get alignment, implement, test, deploy, and monitor your work in production.Build for enterprise reliability: Design with observability, rollback paths, and incremental delivery in mind. Participate in on-call and postmortems.Collaborate across functions: Work directly with Product and Design to scope and prioritize work. Communicate clearly and async-first.Grow as an engineer: Contribute to code reviews, design discussions, and technical standards. Receive and give constructive feedback within the team.The Trust & Telemetry team is organized around two domains:Telemetry: We surface usage, performance, and schema insights that help teams safely evolve and scale their graphs. This means owning the pipelines, APIs, and UX that translate raw telemetry data into actionable visibility.Trust: We own identity, access management, and auditing for GraphOS. From OAuth and SSO to fine-grained role-based tokens and audit logs, we make sure the right people can do the right things—and that there's a record when they do.Required Skills2+ years of experience designing and building backend services in productionSolid understanding of distributed systems fundamentals: consistency, failure modes, and resiliency patternsExperience building APIs and data models that other teams or customers depend onProficiency in at least one modern backend language (TypeScript/Node, Go, Rust, Java, or similar)Experience with relational databases and at least one of: key-value, document, or time-series storesHands-on ownership of services in production: on-call, incident response, postmortemsFamiliarity with observability tooling (metrics, tracing, logging) and SLOsStrong written and verbal communication, especially for design docs and async collaborationAbility to work with Product and Design to define scope, trade-offs, and delivery incrementsBonusFamiliarity with GraphQL, GraphOS, or API gatewaysExperience with OAuth 2.0, OIDC, SAML, or enterprise SSO flowsExperience with IAM systems, RBAC/ABAC models, or audit loggingFamiliarity with AI agents, tool/function calling, or agentic middlewareExperience with cloud-native architectures (Kubernetes, containers, service meshes)Background in security engineering, compliance tooling, or enterprise identityAt Apollo, we strive to provide competitive, market-informed compensation whilst ensuring consistency within the team in each country. We make hiring decisions based on your skills, experience, and our overall assessment of what we learned during the hiring process. The above salary range includes base salary + variable compensation (if applicable. Apollo also offers equity, and benefits. Apollo offers all U.S. employees a choice of 3 Anthem Blue Cross medical plans and California residents can also choose from an additional 2 Kaiser medical plans. Dental and Vision benefits are provided by Sun Life Financial.Location: This is a remote position that can be done from anywhere in the US or Canada, working PST or CST hours.Equal Opportunity: Apollo is proud to be an equal-opportunity workplace dedicated to pursuing and hiring a talented and diverse workforce.E-Verify: Apollo is an E-Verify employer and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.