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# Software Engineer

- **Company:** Apple Inc.
- **Location:** San Francisco, CA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Border Gateway Protocol, Computer Programming, Computer Networks, Computer Engineering, Distributed Systems, Fault Tolerance, Protocol Buffers, Networking Hardware, Multi-protocol Systems, Junos, Python (Programming Language), NetFlow, Routing, Network Service, Prometheus, Software Engineering, Software Systems, System Programming, TCP/IP, Delivery Pipeline, Grafana, Concurrency, Juniper, Git Flow, Kubernetes, Information Technology, Restful APIs, Grpc, Cisco, Docker, Golang, Microservices
- **Published:** October 12, 2026
- **Apply:** https://www.juju.com/job/1_apple2-200674809

## About the Role

If you are passionate about distributed systems, routing protocol daemons, network element programmability, and building carrier-grade platforms from the ground up, come join our team.
As a Senior Software Engineer on the Apple Backbone team, you will architect, build, and scale mission-critical software systems that govern Apple's global WAN and core network infrastructure. **Minimum Qualifications** + 8+ years of software engineering experience building and operating large-scale distributed systems and network software. + Strong programming proficiency in Go (Golang), C, or Python (high-concurrency/systems programming). + Hands-on experience developing secure, high-throughput microservices using gRPC, Protocol Buffers, and REST with TLS/mTLS. + Solid foundation in distributed systems principles: consensus algorithms (e.g., Raft, Paxos), state synchronization, concurrency, and fault tolerance. + Experience with declarative configuration modeling, schema validation, and automated config deployment/push workflows to network devices. + Direct experience designing and building fault-tolerant mechanisms, including self-healing, active remediation, circuit breaking,
load shedding, and blast-radius mitigation for network services. + Deep foundation in computer science fundamentals, including distributed systems architecture, concurrency models, graph algorithms, and systems design + Demonstrated ability to model complex failure domains, handle network partitions and split-brain scenarios, and reason rigorously about system behavior under extreme load and degradation + Direct experience developing SDN Controllers, Path Computation Engines (PCE), or WAN Traffic Engineering platforms in hyperscale or carrier networks. + Proven track record with modern observability tools (Prometheus, Grafana, OpenTelemetry) and robust CI/CD pipelines. **Preferred Qualifications** + Strong working knowledge of core routing protocols and architectures (BGP, MPLS, TCP/IP). + Deep Domain knowledge in Software-Define Networking (SDN) control and data planes, overlay networks and Linux Networking constructs such as eBPF, XDP, OVS. + Hands-on experience with routing
daemons (Juniper cRPD, FRR, GoBGP, BIRD) and multi-vendor NOS APIs (Junos, Cisco IOS-XR, Arista EOS, SONiC). + Experience with streaming telemetry and programmability tooling (gNxI, OpenConfig/IETF models, BMP, NetFlow). + Familiarity with next-generation optical transport networks, Open Line Systems (OLS), and coherent pluggables (400ZR/800ZR) from vendors like Ciena, Infinera, Cisco/Acacia, Nokia, or ADVA. + Experience with Linux networking internals and container orchestration (Docker, Kubernetes, GitOps). + BS, MS, or PhD in Computer Science, Computer Engineering, or equivalent practical industry experience.