Back End Engineer at Horizon3.ai in Remote

Summary: Horizon3.ai is a fast-growing, remote cybersecurity company focused on proactive security solutions. They are seeking a Backend Engineer to enhance backend services and APIs for their NodeZero platform, ensuring reliability and scalability while collaborating with cross-functional teams. Responsibilities: - Build and enhance backend services that power NodeZero, with a focus on ETL jobs and data pipelines used to process and analyze large graph and relational datasets - GraphQL APIs used by customer-facing features and internal tools (such as authentication, our internal management portal, reporting flows, and more) - Improving the entrypoint to NodeZero, ensuring NodeZero runs seamlessly on various operating systems and provides improved observability into customer faced issues on installation process - Implement and evolve backend APIs in GraphQL and Python to support internal tools that enable managing customer accounts and operations at scale - Product features that rely on reliable, performant data access - Help build foundational integrations platform and be involved in a new initiative to help scale Horizon3’s ability to integrate a large number of new partners - Help improve developer experience and API quality and operational readiness to ensure partner integrations are seamless - Collaborate closely with other teams: Partner with product, frontend, and other engineering squads to ship user-facing improvements - Work with on-call and support engineers to debug production issues and improve reliability - Contribute to platform performance and stability, including improving ETL and post-ETL performance around attack vectors and large customer environments - Enhancing observability and monitoring for runner queues, ETL jobs, and core APIs - Attack vector and asset graph processing - Platform features like runner queues, customer entitlements, and client migrations - Participate in code reviews, testing, and documentation, helping raise the quality bar across the team Required Qualifications: - Bachelor's degree in Computer Science, Computer Engineering, or a related field, or equivalent practical experience - 1–4 years of professional software engineering experience - Experience building backend services using at least one modern language, such as Python, Go, Java, TypeScript, or similar - Experience working with SQL and at least one relational database in production - Experience building backend services on a cloud platform (AWS, GCP, or Azure), and familiarity with Docker and containerized applications Preferred Qualifications: - Experience with PostgreSQL and performance tuning for large datasets - Experience with graph databases such as Neo4j or interest in learning them - Experience building or consuming GraphQL backends - Experience with ETL pipelines and data processing tools (e.g., Airflow-like frameworks, custom ETL jobs, or similar) - Experience working on platform or infrastructure-facing teams, building capabilities that other engineering teams use - Experience with observability stacks (e.g., Datadog, Prometheus, Grafana) and instrumentation of services Required Skills: Python, GraphQL, SQL, Cloud platforms Important Skills: ETL pipelines, Docker Nice-to-Have Skills: PostgreSQL, Graph databases, Observability stacks, Attention to quality, Collaboration skills Benefits: Health, vision & dental insurance for you and your family, Flexible vacation policy, Generous parental leave