Sr. Software Engineer - AI & Data Platforms (Hybrid)
Viant TechnologyIrvine, California, United States · Posted 18 days agoDescription
WHAT YOU’LL DO
Viant is looking for a Senior Software Engineer to join the Potens team and help evolve Magnus and Goliath, two internal platforms that power workflow orchestration and large-scale data exploration.
This is a hands-on, full-stack engineering role combining the modernization of mature production systems with the development of new AI-powered capabilities. You’ll work across Java and Go backend services, browser-based JavaScript applications, data platforms, and emerging AI technologies.
A key part of the role will be expanding how users and authorized AI agents interact with our platforms from creating and managing workflows to exploring BigQuery data, generating and executing SQL, and securely accessing platform capabilities through AI tools.
We’re looking for an engineer who enjoys solving complex production problems, working across the stack, and owning software from design through deployment and ongoing support.
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.
As these platforms evolve, you’ll help expand their AI capabilities, including enabling users and authorized AI agents to:
- Create, understand, and modify Magnus workflows
- Discover, execute, and monitor workflows through MCP
- Explore BigQuery datasets and schemas through Goliath
- Generate, execute, and interpret SQL using AI
- Securely access platform capabilities through permission-aware AI tools
THE DAY-TO-DAY
- Maintain and modernize Magnus Java applications, REST APIs, and Goliath’s 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
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
LIFE AT VIANT
Investing in our employee’s professional growth is important to us, but so is investing in their well-being. That’s why Viant was voted one of the best places to work and some of our favorite employee benefits include fully paid health insurance, paid parental leave and unlimited PTO and more.
#LI-TD1
Viant Technology (NASDAQ: DSP) is an exclusively buy-side, AI-powered advertising platform purpose-built for CTV. Viant uniquely combines proprietary content intelligence, household-level identity resolution, and person-level attention signals to connect advertisers with real customers and drive measurable outcomes across the open internet. Through its award-winning AI solutions, Viant is building the future of autonomous advertising, where AI doesn't just assist the campaign, it delivers real results. Learn more at viantinc.com.
Similar jobs
Est. 225,000 USD
WHAT YOU’LL DO Viant’s customers use the Demand Side Platform (DSP) to set up, run and monitor ad campaigns. The platform team owns a complex set of backend services and the frontend UI that make up the DSP. These servic…
Est. 200,000 USD
WHAT YOU’LL DO The Machine Learning team at Viant is revolutionizing the Ad Tech industry with innovative machine learning systems. By automating manual processes in creating, launching, and measuring digital ads, we bui…
Est. 175,000 USD
WHAT YOU’LL DO Viant Technology (NASDAQ: DSP) is building the future of AI-powered, identity-driven advertising across CTV and the open internet — and TVision plays a critical role in that ecosystem by delivering next-ge…
Est. 190,000 USD
WHAT YOU’LL DO The Staff Cloud Reliability Engineer will be responsible for writing and integrating various open source and closed sources tools. The ideal candidate will possess a deep understanding of systems engineeri…
Est. 62,480 USD
WHAT YOU’LL DO As an Human Resources Coordinator, you'll play a critical role in delivering an exceptional employee experience by ensuring the smooth execution of Viant's day-to-day HR operations. You'll serve as the fir…
Est. 165,000 USD
WHAT YOU’LL DO The Senior Cloud Reliability Engineer will be responsible for writing and integrating various open source and closed sources tools. The ideal candidate will possess a deep understanding of systems engineer…
Est. 175,000 USD
WHAT YOU’LL DO The Sr. Manager, Compensation is the hands-on execution engine of Viant’s Compensation function. This role owns compensation cycles, benchmarking, internal equity analysis, census accuracy, and compensatio…
Est. 115,000 USD
WHAT YOU’LL DO We are seeking a technically skilled and process-oriented CRM Administrator to oversee and optimize the systems, workflows, and automations that support the full panelist lifecycle. In this role, you will…
Est. 150,000 USD
WHAT YOU’LL DO Viant is seeking a hands-on Sr. Product Marketing Manager, Commercial GTM to shape how our sales organization positions Viant, communicates differentiated value, and brings our solutions to market. This ro…
Est. 162,500 USD
WHAT YOU’LL DO Viant’s Corporate Finance team is seeking a Senior Manager, Corporate Finance to lead critical aspects of budgeting, Board material preparation, quarterly earnings support, leadership communication, ad-hoc…
Est. 187,500 USD
WHAT YOU’LL DO Viant’s Strategic Finance team is seeking a Director, Strategic Finance, reporting to the VP, Strategic Finance, to help lead forward-looking financial planning, budgeting, forecasting, strategic analysis,…
Est. 92,500 USD
WHAT YOU’LL DO Viant is seeking a highly skilled and self-motivated Technical Account Manager to serve as a strategic post-sales thought leader for our most important clients. This role sits at the intersection of techno…
Est. 115,000 USD
WHAT YOU’LL DO We are seeking a technically skilled and process-oriented Panel Systems Manager to oversee and optimize the systems, workflows, and automations that support the full panelist lifecycle. In this role, you w…
Est. 115,000 USD
WHAT YOU’LL DO Viant is seeking a highly skilled and self-motivated Sr. Technical Account Manager to serve as a strategic post-sales thought leader for our most important clients. This role sits at the intersection of te…
Est. 170,000 USD
WHAT YOU’LL DO Viant is seeking a Sr. Stock Plan Administration Manager to support and scale the company’s equity incentive programs, including non-qualified stock options, restricted stock units, and performance-based s…
Est. 237,500 USD
WHAT YOU'LL DO Viant has established strong momentum across the Consumer Packaged Goods (CPG) industry and is seeking a Head of Industry, CPG to accelerate growth within one of our most strategic verticals. This executiv…
Est. 82,500 USD
WHAT YOU’LL DO: Viant is seeking a talented Account Manager to join our Sales Team. In this dynamic role, the Account Manager owns the client-facing relationship, ensuring superior service through pre-sales support, camp…
Est. 215,000 USD
WHAT YOU’LL DO Viant® (NASDAQ: DSP) is a leading advertising software company that enables marketers to plan, execute and measure omnichannel ad campaigns through a cloud-based platform. We are looking for a Principal Pr…
Est. 237,500 USD
WHAT YOU'LL DO Viant has established strong momentum across Financial Services and is seeking a Head of Financial Services to accelerate growth within one of our most strategic industry verticals. This executive leader w…
Est. 95,000 USD
WHAT YOU’LL DO: Viant is seeking a talented Senior Account Manager to join our Sales Team. In this dynamic role, the Senior Account Manager owns the client-facing relationship, ensuring superior service through pre-sales…
Est. 237,500 USD
WHAT YOU'LL DO Viant has established strong momentum across the Retail industry and is seeking a Head of Industry, Retail to accelerate growth within one of our most strategic verticals. This executive leader will expand…
Est. 122,500 USD
WHAT YOU’LL DO Viant has an exciting opportunity on our Los Angeles sales team for a Sr. Account Executive to evangelize new business, generate awareness, and grow sales of our Viant DSP with a focus on established agenc…
Est. 145,000 USD
WHAT YOU’LL DO Viant has an exciting opportunity on our Los Angeles sales team for an Account Director to evangelize new business, generate awareness, and grow sales of our Viant DSP. This is a tremendous opportunity to…
Est. 107,500 USD
WHAT YOU’LL DO Viant has an exciting opportunity on our Chicago sales team for a Account Executive to evangelize new business, generate awareness, and grow sales of our Viant DSP with a focus on independent agencies in t…
Est. 62,240 USD
WHAT YOU’LL DO We’re looking for an Advertising Operations Coordinator temporarily to join Viant’s Operations team in our Irvine headquarters. In this role, you’ll support the successful execution, monitoring, and optimi…
Est. 237,500 USD
WHAT YOU’LL DO Viant’s Travel business is already a major success, with deep adoption across Travel, and hospitality. We are now seeking a Head of Industry, Travel to further accelerate our growth in this category by sca…
Est. 190,000 USD
WHAT YOU’LL DO: We’re seeking a high-impact, results-driven Director of Sales to lead an agency sales team in NYC. This is a key leadership role within Viant, where you’ll mentor and empower a high-performing team of sel…
Est. 41,600 USD
WHAT YOU’LL DO The core responsibilities of this position are to provide office and administrative support to our New York office in a dynamic environment, while maintaining the utmost discretion with regards to propriet…
Est. 190,000 USD
WHAT YOU’LL DO: We’re seeking a high-impact, results-driven Director of Sales to lead our Denver sales team. This is a key leadership role within Viant, where you’ll mentor and empower a high-performing team of sellers t…
Est. 100,000 USD
WHAT YOU’LL DO Viant is a leading advertising technology company empowering marketers through data-driven solutions. We are seeking a Senior Revenue Accountant to join our dynamic accounting team in a fast-paced, data-ce…