Staff Backend Engineer, Platform & Identity - Remote

Ajaib; Jakarta Pusat; Remote; IDR 400,000,000 - 700,000,000; Full time

Benefits offered by this job

Performance bonus

Private insurance

Paid time off

Learning & Development

Hybrid Work Arrangement

Job summary

Ajaib is seeking a Staff Engineer (Backend) to set the technical direction for the shared foundations that power all products. You will supervise identity, core services, API standards, observability, and developer tooling while staying hands-on where it matters most.

You will design scalable, secure backend systems, drive migration efforts, and mentor senior engineers. This role supports a fully remote setup with cross-team collaboration across regions.

Qualifications

• Bachelor's or Master’s degree in Computer Science or equivalent practical experience.
• 8+ years of professional software engineering, with a track record of platform or shared services work used by multiple teams.
• Proficient in Java, Go or other modern backend languages.
• Strong foundations in microservices, multi-tenant design, reliability engineering and observability.
• Deep knowledge of authentication and authorization (Keycloak / Ory Stack, OAuth2, OpenID Connect, JWT, mTLS).
• Experience with Kafka, Redis, relational and NoSQL databases, including query tuning and data consistency.
• Cloud and container expertise (GCP/AWS, Kubernetes).
• Fintech or regulated environment experience is a plus.
• Experience migrating live high-traffic consumer systems to new identity providers is a plus.

Responsibilities

• Define the technical direction and architecture for platform systems across many teams.
• Lead scalable, secure, multi-tenant service designs and review critical architectures.
• Set API standards, versioning, backward compatibility, deprecation and docs.
• Lead identity and access design: authentication, authorization, token handling and service security.
• Design for reliability with SLAs, rate limiting, isolation and disaster recovery.
• Create golden paths: templates, libraries, CI/CD and observability defaults.
• Architect migrations with zero downtime and backward-compatible changes.
• Identify risks, weigh trade-offs, and align with business and regulatory needs.
• Lead investigations and root cause analyses of production incidents.
• Mentor Senior Engineers and grow technical leadership.
• Stay hands-on with critical components and complex problems.
• Design API Gateways for authentication, routing and rate-limiting across microservices.
• Advance the identity platform (OAuth2, OIDC, Zero Trust) for millions of users.

Skills

Java

Go

Microservices

Event-driven

Kubernetes

Kafka

Redis

OAuth2

Identity platforms

Education

Bachelor's or Master’s in Computer Science

Tools

Keycloak

Ory Stack

Cloud: GCP/AWS

APIs

Job description

Ajaib is seeking a Staff Engineer (Backend) to set the technical direction for the shared foundations that power all products. You will supervise identity, core services, API standards, observability, and developer tooling while staying hands-on where it matters most.

You will design scalable, secure backend systems, drive migration efforts, and mentor senior engineers. This role supports a fully remote setup with cross-team collaboration across regions.