Jobs in Toulouse, United States

Vivun is the leading provider of Technical Sales solutions, which includes the world’s first AI Sales Agent, and is fully dedicated to helping companies use AI to scale technical expertise, build better products, and run better operations. Customers like ADP, Coupa, Docusign, Elastic, Seismic, and Snowflake leverage Vivun solutions to win more deals faster, with a lower cost of sale.

Position Summary

We are looking for a Staff Software Engineer to step into a high-impact, high-autonomy role focused on exploring and building with emerging technologies. You will work at the intersection of real-time media, avatar technologies, and LLM-driven agentic systems, prototyping and delivering capabilities that have never been built before at Vivun.

You will be expected to quickly master unfamiliar domains, navigate ambiguity with confidence, and deliver production-ready solutions by combining strong technical fundamentals with rapid self-directed learning.

You’ll collaborate directly with our CEO, CTO, Product Managers, and engineers to architect, build, test, and refine next-generation features for Vivun’s AI products, with a focus on fast discovery and rapid iteration.

Key Responsibilities

• Own end-to-end delivery of experimental and production features, from initial exploration through to deployment.

• Rapidly prototype and validate emerging technologies (e.g., real-time voice and avatars) and associated platforms (e.g., Heygen, ElevenLabs and open source alternatives).

• Build LLM based multi-agent systems incorporating real-time processing, knowledge graphs, extended memory, and context from multiple data sources and tools.

• Leverage a deep understanding of how real-time communication providers (Zoom, Teams, Meet, etc.) operate to integrate with agentic systems.

• Harden experimental prototypes into robust, scalable enterprise systems.

Desired Skills & Experience

• 10+ years in a software engineering role, with a proven ability to learn unfamiliar technologies quickly.

• BS/MS/PhD in Computer Science (or related) or equivalent practical experience.

• Proven experience mentoring and guiding engineering teams, with a track record of driving complex projects in dynamic environments

• Deep fundamentals in distributed systems, networking, and application architecture.

• AI & LLM frameworks: Hands-on in prompt engineering, LangChain/LangGraph, RAG, embeddings, and knowledge graphs.

• Experience with AI/ML observability, monitoring, and evaluation frameworks

• Fluency in HTML, CSS, React and TypeScript

• Real-time voice synthesis, streaming protocols, WebRTC, WebSockets.

• Demonstrable proficiency in writing maintainable, production-quality Python code

• Hands-on experience with SQL and noSQL databases (Snowflake, Postgres, DynamoDB)

• Hands-on experience with CI/CD pipelines (CircleCI, Harness)

• Proficient in deploying containerized solutions in AWS ECS, EKS / Kubernetes (k8s)

• Design and build secure and scalable authentication solutions (SAML, OIDC, OAuth2.0).

• Web application and networking security (OWASP).

You Are

• High-Agency & Curious: You take initiative, explore independently, and bring forward new ideas.

• Passionate About Emerging Tech: You actively follow bleeding-edge advancements and enjoy experimenting with them.

• Fast Learner: You can ramp on unfamiliar domains in days, not months.

• Systematic Problem Solver: You combine creative exploration with methodical thinking.

• Product-Minded: You think beyond code to how features solve real user problems.

• Collaborative: You partner seamlessly with product, design, research, and leadership.

• Resilient in Ambiguity: You thrive without a playbook and can create clarity from uncertainty.

• A believer in Vivun’s core values: Ownership. Empathy. We, not me. Transparency. Be different.

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