Senior Software Engineer (Rust/Go) — Remote

JobCubby; Poznań; Hybrid; PLN 180,000 - 280,000; Full time

Benefits offered by this job

Competitive compensation

Professional development

Conference attendance

Team outings

Hackathons

Job summary

Mirantis in Poznań seeks a Senior Software Engineer who combines strong software architecture with Datacenter Networking and DPU expertise, driving control planes for AI training and inference workloads. Join a T-shaped team working with Rust and Go, Kubernetes operators, and open-source development to build production-grade systems for scalable, secure infrastructure across environments.

You will design APIs, ensure reliability, and collaborate across teams to deliver high-performance

Qualifications

• Bachelor’s or Master’s degree in CS or equivalent practical experience.
• 5+ years of software engineering experience in cloud-native platforms or systems programming.
• Mastery of Rust (Tokio async runtime, Tonic, Axum, sqlx) and proficiency in Go (secondary).
• Concurrency & Reliability: strong background in async concurrency models, lock-free patterns, distributed state handling, and mock-driven testing discipline.
• APIs & Serialization: gRPC/Protobuf contract design (via tonic/prost) and schema evolution (zero-copy serialization).
• Kubernetes Control Planes: experience writing custom controllers/operators using kube-rs with CRD-driven reconciliation loop patterns.
• Testing Discipline: test-driven design with mock interfaces for external service dependencies.
• Collaborative Architecture: experience in architectural specs and cross-functional reviews.

Responsibilities

• Control Plane Development: design, build, and maintain production‑grade control plane microservices, custom Kubernetes operators, and robust reconciliation engines in Rust and Go.
• Architecture & API Design: author clear FRs/NFRs, architectural specs, diagrams, and clean gRPC/Protobuf and REST schemas.
• Network Integration: develop custom integration modules for SONiC, NVUE, Cumulus and DPU hardware platforms.
• Observability & Diagnostics: instrument services with OpenTelemetry traces and metrics, perform root‑cause analysis.
• Quality & Engineering Excellence: participate in PR reviews across Rust, Go, and SQL, with high test coverage via mocks.

Skills

Rust

Go

Kubernetes

Async programming

gRPC/Protobuf

CRD controllers

Testing with mocks

Education

Bachelor's degree in CS or equivalent

Tools

Tokio

prost

kube-rs

OpenTelemetry

SQLx

Job description

Mirantis in Poznań seeks a Senior Software Engineer who combines strong software architecture with Datacenter Networking and DPU expertise, driving control planes for AI training and inference workloads. Join a T-shaped team working with Rust and Go, Kubernetes operators, and open-source development to build production-grade systems for scalable, secure infrastructure across environments.

You will design APIs, ensure reliability, and collaborate across teams to deliver high-performance