Java Backend Developer

Section

Details

Job Title

Senior Software Engineer (Backend) - Node Connectivity

Job Type

Full time

Client Location

Remote

Work Arrangement

On site / Hybrid / Remote

Duration

Full-Time

Pay Rate / Salary

$100K to $130K Plus Benefits

Job Summary

Must Have Technical/Functional Skills:

10+ years of professional software engineering experience, including technical leadership of substantial systems.

Strong experience with Go, C/C++, or another systems programming language, with the ability to become

productive in Go.

Experience designing and operating large-scale distributed services in production.

Strong knowledge of Linux and networking fundamentals, including IPv4/IPv6, TCP, routing, DNS, and TLS.

Experience with concurrency, performance analysis, debugging, and capacity planning.

Sound judgment in architecture, incident response, and technical tradeoffs.

Clear written and verbal communication. You can align teams without relying on authority

Key Responsibilities

Nextunnel is a globally distributed, high-availability networking system. It routes device traffic across regions

while enforcing strict access controls and preserving service through failures. The platform is written primarily

in Go and runs on Kubernetes in AWS. It uses gRPC, mTLS, Docker, GitLab CI, Kustomize, and modern observability

tooling. We are looking for a hands-on technical lead to guide porting the system to a new deployment platform.

Work on porting Nextunnel deployment to a newly created internal kubernetes-like platform.

Troubleshoot issues in bootstrapping nextunnel in this new environment.

Improve the service's scalability, reliability, security, performance, and operability.

Establish clear technical direction and turn it into practical, staged delivery plans.

Write and review robust Go code for distributed, concurrent, networked systems.

Diagnose complex failures across applications, protocols, containers, and cloud infrastructure.

Strengthen testing through unit, integration, end-to-end, fuzz, and scale tests.

Work with firmware, cloud infrastructure, security, SRE, and product teams on cross-system changes.

Required Qualifications

Good to have skills:

Kubernetes, AWS/EKS, Docker, Kustomize, and CI/CD systems.

gRPC, Protocol Buffers, mutual TLS, PKI, or network security.

Packet processing, tunneling, VPNs, load balancing, or distributed routing protocols.

OpenTelemetry, Prometheus, Datadog, or production observability at scale.

Fuzz testing, performance testing, and failure testing.