Senior Software Engineer - Identity & Authorization Platform

ClickHouse, Inc.; Singapore; Hybrid; SGD 120,000 - 180,000; Full time

Benefits offered by this job

Flexible work environment

Healthcare

Equity in the company

Time off

A USD$500 Home office setup

Global Gatherings

Job summary

ClickHouse, Inc. is hiring engineers to join the Platform Auth team, supporting a unified access management experience.

You will design and build platform services powering authentication, authorization, and audit across ClickHouse Cloud, with API libraries for other engineers to use. You will implement protocol support (SAML, SCIM, OIDC, OAuth2) and build telemetry to observe every access decision, while collaborating with product teams to migrate bespoke auth into the shared platform.

Qualifications

• 4+ years building production backend systems at scale.
• Experience with authentication/authorization services (token issuers, policy engines, or Zanzibar/OpenFGA-style models).
• Knowledge of SAML, SCIM, OIDC, OAuth2 at protocol level and implementation ability.
• Design APIs and SDKs that are adoptable by product teams.
• Operate distributed systems at scale with caching and multi-region concerns.

Responsibilities

• Design and build platform services for authentication, authorization, and audit across ClickHouse Cloud.
• Model permissions and access control primitives across products and ship libraries/APIs.
• Implement protocol support for SAML, SCIM, OIDC, OAuth2, and MFA/passwordless flows.
• Build observability for access decisions and telemetry pipelines.
• Migrate bespoke auth implementations to the shared platform and design easy adoption APIs.
• Carry on-call rotation and own production reliability for critical paths.

Skills

Backend engineering

Go

Rust

TypeScript

Python

Authn/Authz design

Distributed systems

Tools

OIDC/OAuth2

SAML/SCIM

SDK design

Job description

The Platform Auth team’s goal is to support our ‘one customer identity’ vision by providing tools, processes, and expertise for our engineering teams to create a unified access management experience while simplifying and standardizing engineering patterns in the space. We are looking for engineers to join our growing team!

What you will be doing:

• Design and build the platform services that power authentication, authorization, and audit across ClickHouse Cloud. This includes a unified RBAC/ReBAC service, token issuance and session handling, and the SDKs that product teams embed to make authorization decision.

• Model permissions and access control primitives (resources, roles, relationships, policies) that work across ClickHouse, SQL Console, ClickPipes, and HyperDX. Ship the libraries and APIs that other engineers build against.

• Implement protocol-level support for SAML, SCIM, OIDC, OAuth2, and MFA/passwordless flows. Own the integrations that make enterprise SSO and provisioning work end to end.

• Build the audit and authorization-decision telemetry pipeline so every access decision is observable, queryable, and surfaceable to customers.

• Partner with product engineering teams to migrate bespoke per-product auth implementations onto the shared platform, and design APIs that make adoption straightforward.

• Carry the platform on-call rotation and own production reliability for systems on the critical path of every customer request.

What you bring along:

• Minimum 4+ years building production backend systems at scale. Comfort with at least one systems language (Go, Rust, C++) and one application language (TypeScript, Python).

• Hands‑on experience designing and implementing an authentication or authorization service. Examples include building a token issuer, an OIDC or OAuth2 provider, a policy engine, a permissions model, or an FGA/ReBAC system in the style of Zanzibar, OpenFGA, SpiceDB, or Cedar.

• Working knowledge of SAML, SCIM, OIDC, and OAuth2 at the protocol level and are able to implement them.

• Experience designing APIs and SDKs that other engineers depend on, with strong opinions on what makes them adoptable.

• Experience operating distributed systems at scale, including caching strategies, consistency tradeoffs, and multi‑region concerns.

• Familiarity with identity vendors (Auth0, WorkOS, AWS/GCP/Azure IAM) as building blocks you've extended or integrated into a larger platform.

• Strong production debugging instincts and a high bar for systems that are easy to develop against.

Bonus:

• You've built or contributed to a Zanzibar‑style authorization system, or run an OpenFGA or SpiceDB deployment beyond the demo.

• You've designed a multi‑tenant permission model that survived real customer requirements like custom roles, hierarchies, delegation, and ABAC attributes.

• You've shipped an SDK that product teams across an org actually adopted, and have opinions about why most internal SDKs fail.

Perks

• Flexible work environment - ClickHouse is a globally distributed company and remote-friendly. We currently operate in over 25 countries.

• Healthcare - Employer contributions towards your healthcare.

• Equity in the company - Every new team member who joins our company receives stock options.

• Time off - Flexible time off in the US, generous entitlement in other countries.

• A USD$500 Home office setup if you’re a remote employee.

• Global Gatherings – We believe in the power of in‑person connection and offer opportunities to engage with colleagues at company‑wide offsites.

Culture - We All Shape It

As part of a rapidly scaling start‑up, you will be instrumental in shaping our culture.

Are you interested in finding out more about our culture? Learn more about our values here. Check out our blog posts or follow us on LinkedIn to find out more about what’s happening at ClickHouse.

Equal Opportunity & Privacy

ClickHouse provides equal employment opportunities to all employees and applicants and prohibits discrimination and harassment of any type based on factors such as race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

Please see here for our Privacy Statement.