Senior Machine Learning Engineer II

Axon

$156K — $250K *
Enterprise Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's Degree in Computer Science or related field
  • 10+ years of experience in software engineering with a strong focus on distributed platforms
  • Deep experience across the ML lifecycle including data pipelines and model serving
  • Strong software skills in Python and familiarity with ML frameworks like PyTorch or TensorFlow
  • Hands-on experience with cloud infrastructure (AWS, GCP, or Azure)
  • Strong problem-solving capabilities and system architecture understanding
  • Excellent communication skills for collaborating with scientists and engineers

Responsibilities

  • Own the infrastructure that transitions multimodal and video models from concept to production
  • Design and manage data pipelines for large-scale video and multimodal datasets
  • Build training and evaluation infrastructure automating scientists' evaluation methodologies
  • Create inference systems optimizing for latency, throughput, and costs
  • Establish robust indexing and orchestration systems for video and multimodal data
  • Ensure platform security and privacy standards
  • Set technical direction and mentor team engineers

Benefits

  • Competitive salary and 401k with employer match
  • Discretionary paid time off
  • Paid parental leave for all employees
  • Comprehensive medical, dental, and vision plans
  • Fitness programs for employees
  • Emotional and mental wellness support
  • Learning and development programs
  • Employee Resource Groups (ERGs)
  • Access to office snacks
Full Job Description
Your Impact

We are seeking a seasoned Machine Learning Engineer to join a new team building agentic video and multimodal reasoning systems. As a senior engineer on this team you will own the systems and infrastructure that turn cutting-edge research into safe, reliable, and scalable AI capabilities - supporting our company's mission to accelerate justice, protect truth, and save lives.

Working shoulder to shoulder with research scientists, you will build everything that stands between a promising model and a production system operating on video and multimodal data at scale: the data and ingest pipelines, the training and evaluation infrastructure, the inference and serving stack, the retrieval and orchestration layers behind agentic reasoning, and the reliability, security, and privacy guarantees that Axon's customers depend on. Scientists define the models and the metrics; you build the platform that lets them move fast and lets those models ship.

What You'll Do

Location: Hybrid from Seattle, WA or London, UK
Reports to: Director of Software Engineering, AI
  • Own end to end the systems and infrastructure that take multimodal and video models from research prototype to reliable, scalable production.
  • Design and operate data and ingest pipelines for large-scale video and multimodal corpora - storage, processing, labeling, and retrieval.
  • Build and scale training and evaluation infrastructure, and turn scientists' evaluation methodology into automated, reproducible measurement systems.
  • Build inference and serving systems for real-time and batch multimodal workloads, optimizing latency, throughput, and cost.
  • Build the retrieval, indexing, and embedding infrastructure (vector search at scale) and the orchestration and tool-use plumbing behind agentic reasoning over video and multimodal data.
  • Ensure the platform is secure, privacy-preserving, and responsible by design.
  • Set technical direction for the team's systems, raise the engineering bar, and mentor other engineers.
What You Bring
  • Bachelor's Degree in Computer Science, Engineering, Physics, Mathematics or an equivalent highly technical field.
  • 10+ years of software engineering experience and a proven track record of architecting, operating, and maintaining large-scale distributed platforms in production.
  • Deep experience building systems across the ML lifecycle: data pipelines, training and evaluation infrastructure, model serving and inference at scale, and production monitoring.
  • Experience with large-scale data systems handling video or other high-volume, high-dimensional multimodal data.
  • Strong software engineering fundamentals and proficiency in Python, along with familiarity with ML frameworks such as PyTorch or TensorFlow.
  • Hands-on experience operating cloud infrastructure at scale (AWS, GCP, or Azure), including distributed systems and container orchestration.
  • Excellent problem-solving skills and the ability to dive into system architecture, design, performance metrics, code, test plans, project plans, deployments, and operations.
  • Strong communication skills and comfort partnering closely with scientists, engineers, and product managers.

Preferred
  • Master's or PhD in Computer Science, Engineering, or an equivalent highly technical field.
  • Experience building video processing or video understanding pipelines at scale.
  • Experience with retrieval systems, vector search, and RAG infrastructure.
  • Experience serving foundation models, or building agentic systems and LLM tool-use orchestration.
  • Familiarity with responsible AI, de-identification, and privacy-preserving techniques.
Benefits that Benefit You
  • Competitive salary and 401k with employer match
  • Discretionary paid time off
  • Paid parental leave for all
  • Medical, Dental, Vision plans
  • Fitness Programs
  • Emotional & Mental Wellness support
  • Learning & Development programs
  • Employee Resource Groups (ERGs)
  • And yes, we have snacks in our offices

Benefits listed herein may vary depending on the nature of your employment and the location where you work.

Location: This role is based out of our Seattle, WA office and follows a hybrid schedule. We rely on in-person collaboration and ask that team members work onsite Tuesdays through Fridays, with the flexibility to work remotely on Mondays, unless there is an approved workplace accommodation. We believe that connection fuels innovation, and our in-office culture is designed to foster meaningful teamwork, mentorship, and shared success.

#LI-Hybrid

Axon is a total compensation company, meaning compensation is made up of base pay, bonus, and stock awards. The actual base pay is dependent upon many factors, such as: level, function, training, transferable skills, work experience, business needs, geographic market, and often a combination of all these factors. Our benefits offer an array of options to help support you physically, financially and emotionally through the big milestones and in your everyday life. To see more details on our benefits offerings please visit https://www.axon.com/careers.

Base Pay Range

$156,750-$250,800 USD

Don't meet every single requirement? That's ok. At Axon, we Aim Far. We think big with a long-term view because we want to reinvent the world to be a safer, better place. We are also committed to building diverse teams that reflect the communities we serve.

Studies have shown that women and people of color are less likely to apply to jobs unless they check every box in the job description. If you're excited about this role and our mission to Protect Life but your experience doesn't align perfectly with every qualification listed here, we encourage you to apply anyways. You may be just the right candidate for this or other roles.

Important Notes

The above job description is not intended as, nor should it be construed as, exhaustive of all duties, responsibilities, skills, efforts, or working conditions associated with this job. The job description may change or be supplemented at any time in accordance with business needs and conditions.

Some roles may also require legal eligibility to work in a firearms environment.

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