Senior Machine Learning Engineer (Remote, North America)

Vivun; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

A leading company specializing in AI-driven solutions is seeking a Senior Machine Learning Engineer to design and develop innovative AI solutions that aid in sales operations. This role involves working on LLMs, managing machine learning systems, and collaborating with diverse teams to align AI development with business needs. Candidates should have substantial experience in building robust ML systems and a passion for problem-solving in dynamic environments.

Benefits

Competitive salary and health benefits

Stock options in a pre-IPO company

Flexible work schedules

Unlimited PTO with dedicated quiet periods

Supportive team environment

Qualifications

• 7+ years experience in ML systems in production.
• Proficient in Python and SQL.
• Deep knowledge of AI/ML algorithms and systems.

Responsibilities

• Design and develop LLM-powered AI solutions.
• Oversee deployment and monitoring of ML systems.
• Collaborate with cross-functional teams for business alignment.

Skills

Machine Learning

Data Science

AI Algorithms

Python

NLP

SQL

Observability

CI/CD Pipelines

Mentoring

Problem Solving

Education

BS/MS/PhD in Computer Science

Tools

Docker

Kubernetes

AWS

FastAPI

Postgres

Redis

Job description

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:

As a Senior Machine Learning Engineer, you will be responsible for driving the design, development, and evolution of AI/ML solutions that are integral to Vivun’s mission. You will build and scale AI-driven solutions that equip our AI Sales Engineer, Ava, with the skills to understand complex customer needs, deliver specialized technical guidance, and proactively generate work products to accelerate deals. You’ll work with LLMs on RAG pipelines, knowledge engineering systems, multi-agent workflows, while also refining traditional ML pipelines. In this high-impact role, you will collaborate closely with product managers, designers, and fellow engineers to drive the development and realization of the next generation of Vivun’s agentic products.

Key Responsibilities

• You will design and develop LLM-powered AI solutions that incorporate RAG, tool calling, structured outputs, as well as knowledge and memory management.

• You will oversee the deployment and monitoring of machine learning systems in production environments.

• You will optimize and scale inference for both real-time and batch processing, ensuring low-latency and cost-efficient AI execution.

• You are an owner of quality by evaluating models/agents, both offline and online, as well as implementing and maintaining production observability tools.

• You will build and contribute to scalable data and ML infrastructure.

• You will collaborate with cross-functional teams to align AI development with business needs.

• You are adaptable and comfortable with the ambiguity of working in a highly dynamic agentic/LLM development space, evaluating emerging technologies and methodologies to continuously enhance system performance.

• You ensure adherence to security standards and data governance best practices.

Desired Skills & Experiences

• 7+ years of experience building, deploying, and operating reliable data and ML systems in production environments

• BS/MS/PhD in Computer Science, Data Science, Engineering, or a related field

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

• Deep knowledge of AI/ML algorithms, including clustering, supervised/unsupervised learning, natural language processing (NLP), and large language models (LLMs)

• Extensive hands-on experience writing SQL and working with databases

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

• Advanced understanding of CI/CD pipelines (CircleCI, Harness) and API development best practices with FastAPI

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

• LangChain, LangGraph, scikit-learn, XGBoost, Transformers, FastAPI, Celery, Pydantic

• Postgres, Snowflake, Redis, Kafka, Vector databases

• Docker, Kubernetes, OpenTelemetry, AWS, RDS, SageMaker

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 Innovator: You take ownership of features from design to deployment, building robust and scalable systems. You excel at diagnosing and resolving complex issues while ensuring performance, maintainability, and reliability.

• Tenacious Problem Solver: You tackle tough challenges head-on, using a methodical approach to uncover what’s happening and how to fix it.

• Creative and Systematic: You thrive in ambiguity, combining creativity with rigorous thinking to build clarity and consensus around the best solutions.

• 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