Mirantis · Remoto · Barcelona, Spain
Join our engineering team as a Senior Software Engineer, where you will drive the development of control planes for high-density, high-throughput infrastructure for AI training and inference workloads. You will design, build, and maintain production-grade control plane microservices, custom Kubernetes operators, and robust reconciliation engines in Rust and Go. You will also develop custom integration modules for modern network operating systems and DPU hardware platforms, and instrument services end-to-end using OpenTelemetry.
- Kubernetes Control Planes: Experience writing custom controllers/operators using kube-rs with CRD-driven reconciliation loop patterns
- APIs & Serialization: gRPC/Protobuf contract design (via tonic/prost) and schema evolution (using zero-copy serialization and compile-time type generation)
- Testing Discipline: Commitment to test-driven design, writing highly testable code with mock interfaces for external service dependencies
- Collaborative Architecture: Proven track record of writing crisp architectural specs and engaging in constructive, cross-functional design reviews
- Primary mastery of Rust (Tokio async runtime, Tonic, Axum, sqlx) and proficiency in Go (secondary)
- Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or equivalent practical experience
- Concurrency & Reliability: Strong background in async concurrency models, lock-free patterns, distributed state handling, and mock-driven testing discipline
- 5+ years of software engineering experience in cloud-native platforms or systems programming
- Advanced SQL / PostgreSQL fluency
- 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
- Demonstrated participation or maintaining open-source systems projects
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