Lead Software Engineer, Full Stack (Remote, North America)

Vivun delivers the world’s most advanced AI Sales Agent—automating the critical work required to move complex deals forward. By generating sales-ready outputs that help every rep engage stakeholders, build value, and drive urgency, Vivun empowers sales teams to close more deals, faster.

Position Summary:

Our Full-Stack Engineers are responsible for turning product ideas into reality. You will collaborate with our CEO, CTO, Product Managers, and fellow engineers to architect, build, test, deliver, and refine the next generation of Vivun’s agentic products.

Key Responsibilities

• You will own end-to-end product experiences, iterating on features from data acquisition and transformation all the way through user interactions.
• You will develop multi-step, LLM-based workflows that incorporate structured logic, memory, and context from various data sources. You will collaborate with UI/UX designers on the nuances of agentic UX.
• You must be comfortable with ambiguity in a highly dynamic agentic/LLM development space, and be able to apply your daily learnings to deliver groundbreaking product features.
• You will be expected to deeply understand our customers’ needs and partner with internal stakeholders to craft and validate new product hypotheses.
• You will author contributions that can be safely and automatically promoted from development to production, in close partnership with quality assurance & site reliability engineers. Your services and applications must be production grade - instrumented with logging, tracing, and metrics to ensure they are diagnosable and continuously monitored.

Desired Skills And Experiences

• 6–10 years in a software engineering individual contributor role
• BS/MS/PhD in Computer Science (or related field) or equivalent experience
• Proven record of delivering large-scale, resilient enterprise applications
• AI development & LLM frameworks: Hands-on experience (or strong interest) in working with LLMs through prompt engineering, LangChain / LangGraph (or similar agentic libraries), integrating LLM-based reasoning, RAG, vector embeddings, and designing and implementing knowledge graphs
• Backend tech: Python, PostgreSQL, Redis, Kafka, neo4j
• Frontend tech: TypeScript, React, HTML, CSS
• Responsive/adaptive design, deep understanding of HTTP, WebSockets & browser APIs
• AWS, Kubernetes, Skaffold, OpenTelemetry, CI/CD, Auth (SAML, OIDC, OAuth2.0)
• Web application and networking security (OWASP)

You Are

• A believer in Vivun’s core values: Set the Standard. Take Ownership. Stay Curious. Fast & Focused.
• Passionate About AI: You embrace emerging technologies and push the boundaries of agentic experiences.
• Clear Communicator: You articulate strategies and informed opinions clearly, with solid rationale. You also understand the value of listening.
• Excellent Collaborator: Nothing at Vivun is someone else’s problem. You work across roles and departments to achieve company goals.
• Technical Visionary: You own features from idea to production—visualizing, designing, and implementing robust systems. You quickly diagnose and resolve complex issues, and know how to build for performance and scale.
• Product-Obsessed: You deeply understand customers’ needs and create intuitive, powerful products—never settling for “good enough.”
• Creative and Systematic: You thrive in ambiguity, combining creativity with rigorous thinking to build clarity and consensus around the best solutions.
• Tenacious Problem Solver: You tackle tough challenges head-on, using a methodical approach to uncover what’s happening and how to fix it.
• Growth Mindset: You’re a lifelong learner who views each challenge as an opportunity for professional and personal growth.
• Ownership: You take initiative, celebrate progress, and go the extra mile for your peers. You care about both the big picture and the details.

What You Will Have At Vivun

• Competitive salary and full health benefits
• Stock Options at a well funded, pre-IPO company on a fast growth track
• Flexible work schedules and work from anywhere at a fully remote company
• Unlimited PTO with two weeks designated as “quiet period” each year
• An experienced team who will fight beside you in the trenches to accomplish your goals