Senior Software Engineer, Backend

Who We Are

MOXFIVE is building technologies that leverage AI to streamline the response, recovery, and resilience from cyber attacks in enterprises. We are looking for talented Backend Software Engineers to join as core members of our founding engineering team, where your contributions will significantly shape our architecture and key technical decisions.

The MOXFIVE founding team brings over 30 years of combined cybersecurity experience from leading companies such as CrowdStrike, Mandiant, Palo Alto Networks, Crypsis, Illumio, and Expel. Today, we are focused on seizing an opportunity with the potential to disrupt the breach response market.

Who You Are

You're a senior software engineer who architects and builds the core systems behind modern, scalable software platforms. You tackle challenging problems from backend architecture to intuitive user workflows and deliver reliable solutions that businesses trust.

You take pride in building elegant, reliable systems and writing code that lasts. You care about clarity, maintainability, and performance, always striving to make the software you build easy to use and easy to evolve. You thrive on solving hard problems, refining how things work behind the scenes, and delivering features that feel seamless and valuable to the people who use them.

The Impact You'll Have
At MOXFIVE, we're not just building a platform that automates the incident response process, we're building a company where engineers directly impact customer success. As a member of our team, you'll have the unique opportunity to work closely with customers facing cyberattacks, understand what truly helps in the moment, and see firsthand how your work makes a difference.

This role requires a balance of technical skill, customer empathy, and initiative. We're building the first AI-powered incident response platform designed to help customers recover quickly and restore business operations with confidence.

What You'll Bring

• Education: Bachelor's in Computer Science or equivalent experience (Master's is a plus)
• Experience: 3+ years designing and building distributed, scalable systems in production environments
• Languages: Proficient in Go and Python, with a strong focus on practical experience in real-world applications
• Databases: Experience with databases across multiple paradigms: MongoDB (NoSQL/document-oriented), Redis (NoSQL/in-memory key-value), and relational databases including MySQL and PostgreSQL
• API Integration: Expertise designing and consuming REST APIs and gRPC services
• AI/LLM: Experience integrating and deploying Large Language Model–based solutions (e.g., OpenAI, Google Gemini, AWS Bedrock), including building and consuming APIs for prompt handling, embeddings, and retrieval-augmented generation
• Cloud: Strong experience with AWS, including EKS and infrastructure-as-code with Terraform, with a need for greater involvement in broader architectural decision-making and hands-on implementation
• Service Deployment: Hands-on experience deploying containerized services on Kubernetes, particularly with Envoy Gateway and Linkerd service mesh
• Workflow Orchestration: Experience with Temporal or related workflow execution platforms is valued; however, we also seek candidates enthusiastic about learning and using Temporal

Disclaimer
All official MOXFIVE communications will only come from an email address.
Compensation
$160K - $220K plus company bonus incentives

Note

To keep things fair and consistent, we ask that you don't use AI tools in your application or interview unless we ask for it. Our team reviews each application personally, so there's no need to reach out through LinkedIn or other channels.