Senior Backend Engineer

Xage Security; Emeryville (CA); On-site; USD 100,000 - 130,000; Full time

Benefits offered by this job

Competitive salary and equity

Full health, dental, and vision insurance

Visa transfer and immigration support

Opportunity to work closely with founders

Job summary

Xage Security in Emeryville is seeking a Senior Backend Engineer to design innovative information security products leveraging blockchain technology. This pivotal role requires strong software development skills and experience with various security protocols.

The successful candidate will take ownership of projects, ensure high quality of deliverables, and lead initiatives to enhance system health and reliability. Applicants should have a solid understanding of JavaScript security execution and extensive experience with C++, Go, and various communication protocols.

Benefits include competitive salary, health insurance, visa support, and an opportunity to work closely with company founders.

Qualifications

• 3+ years of experience in software development using various communication protocols.
• In-depth knowledge of JavaScript execution in security contexts.
• Strong communication skills and expert system-level skills on Linux OS.

Responsibilities

• Take ownership of specific project scope and initiatives.
• Define, develop and maintain deployment processes for Xage solutions.
• Stay up to date with emerging technologies.

Skills

Software development

JavaScript security execution

Multi-threading programming

C++

Go

Java-based secure coding

Cryptography

Linux OS expertise

Tools

NGINX

Docker

Guacamole framework

Job description

About the Role

The Senior Backend Engineer role gives the successful candidate the opportunity to champion the design of path-breaking information security products that address key gaps in security for the Internet of Things. Xage’s product is a unique application of blockchain technology, which leverages decentralization to place adversaries in a disadvantageous position. The role is pivotal to delivering thought leadership, product reliability, and robust design and architecture.

Responsibilities

• Take ownership of specific project scope and initiatives and ensure high quality of deliverables
• Define, develop and maintain the deployment process and tools for Xage solutions spanning across IT, OT, and cloud environments
• Provide ongoing support and improve system health and reliability
• Stay up to date with emerging technologies and adopt best practices for highly scalable, distributed, autonomous systems
• Lead, direct, guide, and empower others to succeed

Requirements

• 3+ years of experience in software development using HTTP/s proxies, WebSockets, packet tracing, and multi-tier client/server communication
• In-depth understanding and practical knowledge of JavaScript execution in the security context of modern web browsers, authentication and authorization using JWT, SAML, and SSO
• Fundamental working knowledge of multi-threading programming, inter-process communication, socket programming, high-performance, and low-latency programming
• Knowledgeable in C++, Go, Java-based secure coding, vulnerability assessment, and threat analysis
• Hands‑on experience with application protocols RDP, VNC, HTTP, SSH, and core concepts of authentication, certificates, TLS, etc.
• Experience in cryptography, PKI, microservice architecture, large-scale infrastructure, reverse proxies, NGINX, SOCKS5, session management with load balancers
• Highly focused on quality, debugging, and troubleshooting skills
• Strong communication skills and expert system-level skills on Linux OS such as Ubuntu, Alpine, Red Hat Linux, and Docker
• Experience developing NGINX plugins or working with internals is a plus
• Experience developing applications using the Guacamole framework is a plus

Benefits

• Competitive salary and equity
• Full health, dental, and vision insurance
• Visa transfer and immigration support
• Opportunity to work closely with founders and executives and participate in all aspects of company building
• Early-stage opportunity in a large market with proven traction and rapid growth