Software Engineer (Go) - UTM & SASE Backend

About the role

Berqnet builds next-generation UTM and SASE security products. It is looking for a Software Engineer to build the backend services of its UTM and SASE platform, working on systems that thousands of businesses rely on daily, from high-traffic network services to device management APIs. The role suits someone who puts performance and security first and takes pride in owning a product that runs in the field.

Key responsibilities

• Develop and maintain backend services, agents and CLI tools for the UTM and SASE products in Go.
• Design high-performance, scalable REST and gRPC APIs for device management, policy distribution, logging and reporting.
• Work on network-layer components such as packet processing, VPN/ZTNA, DNS and web filtering, targeting low latency and high throughput.
• Write code following secure software development principles, take part in code reviews and security testing.
• Write unit and integration tests, improve CI/CD processes and use profiling to find and remove bottlenecks.
• Investigate issues raised by field and support teams to their root cause and feed partner and customer feedback back into the product.
• Work with Product, Frontend, QA and DevOps teams, owning work from feature design through to production release.

Required profile

• Bachelor's degree in Computer Engineering, Software Engineering, Electrical-Electronics Engineering or a related field.
• At least 3 years of backend development experience on production systems, including at least 2 years with Go.
• Experience developing and debugging in FreeBSD and Debian environments.
• Professional proficiency in English, including reading and writing technical documentation.

Required skills

• Strong command of goroutines, channels, context and synchronization primitives; concurrent and distributed systems.
• Solid knowledge of TCP/IP, DNS, HTTP/TLS, routing and NAT.
• PostgreSQL or a similar relational database, and caching with Redis.
• Familiarity with Docker, Git and CI/CD.
• Habit of writing tests and an appreciation of readable, maintainable code.

Nice to have: firewall, VPN (WireGuard, IPsec), ZTNA or SASE development; FreeBSD network stack (pf, ipfw, netmap, netgraph, kqueue, jails); Kafka, NATS or RabbitMQ; Kubernetes, Prometheus and Grafana; Go for FreeBSD (cross-compilation, cgo, syscalls); interest in OWASP, secure coding and penetration testing; familiarity with KVKK and Law No. 5651; open-source contributions.