Senior Software Engineer - Bare Metal as a Service & Datacenter Networking

Mirantis; Poland; On-site; PLN 240,000 - 420,000; Full time

Job summary

Mirantis is seeking a Senior Software Engineer to drive the design and implementation of high-density, high-throughput control planes for AI training and inference workloads. You will work across Rust and Go, with a focus on Kubernetes operators, gRPC/Protobuf schemas, and robust reconciliation logic.

You will collaborate on networking integrations (SONiC, NVUE, Cumulus) and DPU ecosystems, leveraging OpenTelemetry for observability and building reliable, test-driven code in a distributed

Qualifications

• Bachelor's or Master's degree in Computer Science, Computer Engineering, or equivalent practical experience.
• 5+ years of software engineering experience in cloud-native platforms, systems programming, networking, or infrastructure automation.

Responsibilities

• Design, build, and maintain production-grade control plane microservices and Kubernetes operators in Rust and Go.
• Architectural specs, APIs, and system diagrams with FR/NFR guidance.
• Develop network integration modules for SONiC, NVUE, Cumulus and DPU hardware platforms.
• Instrument services with OpenTelemetry traces and metrics for observability and diagnostics.
• Contribute to rigorous PR reviews and ensure high test coverage via mock-driven testing.
• Experience with Rust (Tokio, Tonic, Axum, sqlx) and Go as primary languages.

Skills

Rust

Go

Kubernetes

OpenTelemetry

gRPC/Protobuf

REST

SQL/PostgreSQL

async/concurrency

Distributed systems

Education

Bachelor's or Master's in CS/CE

Tools

kube-rs

controller-runtime

gRPC/Protobuf

PostgreSQL

Job description

About the Team

Our engineering team builds next-generation, cloud-native bare-metal orchestration platforms for AI neo-cloud environments. We operate on a T-shaped engineering model: while each engineer brings deep expertise in a primary domain, every team member maintains practical fluency across neighboring systems. This shared foundation enables rigorous design reviews, effective cross-domain code reviews, and dependable on-call coverage. Our development is fundamentally based on open-source projects, and contributing to them is a major part of our work.

We develop primary control plane software in Rust and Go, leverage Kubernetes operators, and foster an OpenTelemetry-first operational culture.

Role Overview

We are seeking a Senior Software Engineer who combines strong software architecture principles with deep technical domain expertise in Datacenter Networking and DPU architectures. Fitting into our T-shaped engineering model, you will drive the development of control planes powering high-density, high-throughput infrastructure for AI training and inference workloads. Familiarity with automated bare-metal provisioning and lifecycle management is a strong asset.

Core 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 Functional (FR) and Non-Functional Requirements (NFR), architectural specs, system sequence diagrams, and clean gRPC/Protobuf and REST API schemas.
• Network Integration: Develop custom integration modules and integrations for modern network operating systems (SONiC, NVUE, Cumulus) and DPU hardware platforms.
• Observability & Diagnostics: Instrument services end-to-end using OpenTelemetry (OTel) traces and metrics, performing systematic root-cause analysis across polyglot distributed systems.
• Quality & Engineering Excellence: Participate in rigorous, review-gated pull request workflows across Rust, Go, and SQL codebases while ensuring high test coverage via mock-driven testing.
• Language Proficiency: Primary mastery of Rust (Tokio async runtime, Tonic, Axum, sqlx) and strong proficiency in Go.
• Data & APIs: Advanced SQL / PostgreSQL fluency, gRPC/Protobuf contract design, and schema evolution.
• Concurrency & Reliability: Strong background in async concurrency models, lock-free patterns, distributed state handling, and mock-driven testing discipline.
• Datacenter Protocols & OS: Expertise in BGP, MP-BGP, EVPN, VXLAN, L3VNI, route targets, and route server design. Hands-on experience with SONiC, Cumulus Linux, and NVUE (featuring a first-class NVUE client).
• DPU & Fabric Ecosystem: Deep knowledge of NVIDIA DOCA, Host-Based Networking (HBN), BlueField DPU architectures, and the DPF (DOCA Platform Framework) operator model (BFB, DPUSet, DPUNode CRDs).
• High-Performance Interconnects: Understanding of InfiniBand fabrics, NVLink / NMX-M partitioning, and RoCEv2.
• Linux Kernel Networking: Advanced grasp of Linux netlink, network namespaces, routing tables, and internal DHCP/DNS service implementations (the project ships its own services).
• Cloud & Kubernetes Networking: Familiarity with CNI plugins (Calico, Cilium). OVS and DPDK experience is a plus.
• Provisioning & Boot Infrastructure: Expertise in PXE/iPXE, UEFI, Secure Boot, measured boot, and TPM attestation.
• Hardware Management: Proficiency in Redfish, IPMI, and BMC abstractions across heterogeneous hardware platforms (Dell, Lenovo, NVIDIA reference hardware).
• Linux Systems Internals: In-depth knowledge of boot chains, systemd, initramfs, BIOS configuration matrices.
• Identity & Security: Practical experience with PKI, X.509 certificates, TLS, SPIFFE/SVID, Vault, KMS, Keycloak (OAuth2/JWT), and RBAC.
• Virtualization: Experience with KubeVirt / KVM.
• Kubernetes Control Planes: Experience writing custom controllers/operators using kube-rs or controller-runtime with CRD-driven reconciliation loop patterns.

Universal Requirements

• Testing Discipline: Commitment to test-driven design, writing highly testable code with mock interfaces for external hardware and network dependencies.
• Collaborative Architecture: Proven track record of writing crisp architectural specs and engaging in constructive, cross-functional design reviews.

Educational & Experience Baseline

• Bachelor's or Master's degree in Computer Science, Computer Engineering, or equivalent practical experience.
• 5+ years of software engineering experience in cloud-native platforms, systems programming, networking, or infrastructure automation.
• Demonstrated participation or maintainership in open-source systems projects is a plus.

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 technolo