Lumia Security- Senior Software Engineer

Description
Join Lumia, backed by Team8 and NewEra, and help us solve the next generation of AI security challenges at scale. Our product combines AI, security, high-performance networking and distributed systems.
You'll design and build core services across our platform, and your networking and infrastructure experience will help us build fast, reliable and secure systems.
Life at Lumia
We're a small, early-stage team that takes the work seriously but not ourselves. We move fast, argue about architecture over lunch, celebrate wins together and help each other when things break. Everyone here has a real say, good ideas win no matter who they come from, and you'll see your work in production quickly. If you love hard technical problems and want to have fun solving them with people you like, you'll fit right in.
What you'll do

Design, build and own backend services and microservices across the Lumia platform
Work on network-facing components, including proxies and traffic handling, with a focus on performance, reliability and security
Help shape our architecture, infrastructure and cloud deployment
Debug and optimize complex systems, from application code down to the network level
Work closely with product and research to turn AI security ideas into production features

Requirements:

Requirements

5+ years of hands-on software development, preferably in Go
Strong experience with microservices and cloud-native applications
Background in high-scale, low-latency distributed systems with a focus on performance
Solid understanding of networking fundamentals: TCP/IP, L4-L7, DNS, HTTP/1.1, HTTP/2 and TLS
Hands-on experience building or extending proxies (forward, reverse or transparent) or other traffic-handling services
Experience with Docker, Kubernetes and cloud networking (VPCs, load balancers)
Quick learner who does well in a fast-paced, changing environment
Self-motivated and detail-oriented, with a strong sense of ownership
A positive team player

Advantages

Experience with Envoy, NGINX, HAProxy, Squid or similar proxy technologies
Background in network security products such as SASE/SSE, SWG, firewalls, IPS/IDS or CASB
Experience with TLS inspection, certificate handling or encrypted traffic analysis
Low-level networking experience: Linux kernel networking, eBPF, iptables/nftables
AI and LLM experience, with an understanding of real-world applications
Event-driven architecture experience (Kafka, RabbitMQ, NATS)
Understanding of security best practices and compliance for cloud systems

Company:

Lumia

R&D:

Developer