Principal Software Engineer, Backend (Go)

We are looking for an experienced backend engineer to build the Go services behind the k0rdent-ai platform the multi-tenant control plane for GPU infrastructure. You will collaborate with engineering teams across US Europe and India to design and develop API-first services.

Your responsibilities will include owning features end to end API contract service schema orchestration tests and Helm packaging and making architectural decisions that shape how enterprises consume our platform. Working within an agile framework you will directly impact the reliability and correctness of infrastructure customers run in production.

Main Responsibilities:

• Design and build Go microservices model database schemas and write migrations for the multi-tenant k0rdent AI platform.

• Design and implement durable orchestration in Temporal idempotency retries timeouts determinism constraints.

• Design public REST APIs with OpenAPI along with multi-language SDKs.

• Build event-driven asynchronous communication between services on a distributed streaming or message-broker platform.

• Implement authentication and authorization boundaries across an enterprise IAM platform and an API gateway OIDC/JWT service-to-service auth tenant-scoped RBAC gateway routing and rate limiting.

• Extend the identity model with standards-based user and group lifecycle provisioning (SCIM) and unify authorization between the platforms API permissions and Kubernetes-native RBAC.

• Write unit integration and end-to-end tests as part of every change.

• Instrument services for production structured logging metrics and audit trails.

• Package and ship services with Docker Helm and Kubernetes.

• Review peers code and debug incidents to root cause with regression coverage.

• Mentor junior engineers onboarding design guidance and review feedback that raises the teams bar.

Qualifications :

Required Skills/Abilities: 

• 10 years of professional software engineering including 5 years building production backend services using Go language.

• Strong Go fundamentals: concurrency context propagation error wrapping stdlib HTTP routing (Go 1.22).

• Deep relational database experience: schema design migrations transactions and query tuning under multi-tenant load.

• Track record designing versioned REST APIs consumed by external clients and the SDKs generated from them.

• Experience building durable or event-driven asynchronous systems workflow engines streaming platforms or message brokers with idempotency and retry semantics.

• Solid grasp of OIDC JWT validation RBAC modeling and multi-tenant isolation behind an IAM platform and API gateway.

• Working Kubernetes knowledge deploy inspect and debug workloads and reason about Kubernetes RBAC.

• Testing discipline: unit and integration tests are part of your definition of done.

• Git-based workflow rigorous code review CI/CD (GitHub Actions or equivalent).

• Experience mentoring engineers and leading design discussions.

• Clear written English for asynchronous design docs and reviews across time zones.

Must Have

• Temporal in production.

• Experience developing multi-tenant SaaS or PaaS platforms.

• Cluster API Kubernetes controllers or operators.

• Keycloak realms clients identity providers token flows.

• API gateway operation   routing plugins rate limiting.

• PostgreSQL at scale with a migration toolchain.

• Docker and Helm-packaged services running on Kubernetes.

• Streaming or message-broker platforms  

Nice to Have

• k0s ecosystem experience.

• GPU infrastructure or AI/ML workload scheduling on Kubernetes.

• SCIM provisioning or federating platform permissions with Kubernetes RBAC.

• sqlc OpenAPI codegen or other schema-driven toolchains.

• Observability: Prometheus Grafana OpenTelemetry audit logging.

• Python or TypeScript for E2E suites and client SDKs.

• Security engineering: threat modeling secret management dependency and container scanning.

• CNCF open-source contributions.

Education and Experience:

• Bachelors degree in Computer Science & Engineering or related field or 10 years related experience.

Additional Information :

What does Mirantis offer you

• Work with an established Silicon Valley leader in the cloud infrastructure industry;
• Work with exceptionally passionate talented and engaging colleagues helping Fortune 500 and Global 2000 customers implement next-generation cloud technologies;
• Be a part of cutting-edge open-source innovation;
• Thrive in the high-energy environment of a young company where openness collaboration risk-taking and continuous growth are valued;
• Professional development and training;
• Attend conferences and working groups;
• Company outings happy hours hackathons and tech talks;
• Receive a competitive compensation package with a strong benefits plan.

We are a Leader for Container Management in G2 (#2 after AWS)!

Remote Work :

Yes

Employment Type :

Full-time