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Viant Technology

Sr. Software Engineer

Viant Technology
Irvine, CA $150k - $180k/yr Full time Posted 5d ago
Backend Developer Senior APIs Artificial Intelligence Automation Bigquery Cloud Cloud Data Warehouse Cloud Infrastructure Cloud Native Cloud Operations Cloud Platform Cloud Platforms Cloud Technology Data Analysis Data Engineer Data Integration Data Platform Data Processing Data Warehouse Database Databases DevOps DevSecOps Engineering Frontend Full Stack Google Cloud Infrastructure As Code Integration Java Language JavaScript Kubernetes Llm Applications Platform Engineering Programming Programming Language Programming Languages Software Development Software Engineer Software Engineering SQL
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Job Description

Viant Technology’s Potens team builds internal platforms that power workflow orchestration and large-scale data exploration, and the team is expanding AI-powered capabilities. In this onsite role in Irvine, CA, you’ll help evolve Magnus and Goliath with a hands-on, full-stack approach across backend services, data platforms, and production AI integrations.

You’ll collaborate on modernization work for established systems while developing new capabilities for how users and authorized AI agents create, manage, and execute workflows and explore BigQuery data.

What you’ll do

  • Maintain and modernize Magnus Java applications, REST APIs, and Goliath JavaScript/jQuery frontend
  • Develop and support backend capabilities using Java and Go
  • Build production AI features and integrations using LLMs, tool calling, guardrails, evaluation, and MCP
  • Integrate with BigQuery, MySQL, GCP services, and internal APIs
  • Diagnose and resolve application, workflow, database, performance, and production issues
  • Build automated tests and deliver reliable, production-quality software
  • Own projects end to end, from technical proposal and implementation through deployment and production support
  • Participate in code reviews and contribute to sound engineering practices across the team

How Magnus and Goliath work

Magnus is a visual workflow orchestration platform supporting BigQuery, Cloud Storage, MySQL, REST APIs, email, FTP, conditional routing, parallel execution, Go and JavaScript scripting, YAML workflow definitions, debugging, audit history, and access controls.

Goliath is a lightweight, high-performance BigQuery development interface for writing and executing SQL, browsing datasets and tables, visualizing results, and managing cost and quota allocation without requiring direct access to the GCP Console.

Benefits

  • Fully paid health insurance
  • Paid parental leave
  • Unlimited PTO

Technologies you may work with

  • Java, Go, JavaScript, jQuery
  • BigQuery, MySQL, GCP, REST APIs
  • LLMs, tool calling, guardrails, evaluation, MCP (including MCP server/client development)
  • Docker, Kubernetes, GKE, CI/CD pipelines, GitHub Actions
  • Python, Java 8, Tomcat, JSP, CodeMirror, Chart.js, YAML
  • Cloud Storage, REST, FTP, Email
  • MySQL performance optimization, GCP Console

Compensation: USD 150,000 - 180,000 per year.

Great to have

  • MCP server/client development and AI agent or tool-calling architectures
  • Go development in production environments
  • GCP and BigQuery
  • Docker, Kubernetes, or GKE
  • MySQL performance optimization
  • CI/CD pipelines, including GitHub Actions
  • Python development
  • Java 8, Tomcat, JSP, CodeMirror, or Chart.js
  • Incremental modernization of mature applications while maintaining production stability

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