Scientist - AI & Machine Learning

Charles River Analytics, Inc.; Cambridge (MA); Hybrid; USD 120,000 - 200,000; Full time

Benefits offered by this job

100% employer-paid medical and dental

Tuition reimbursement

Gym allowance

Paid time off

Job summary

Charles River Analytics, a GRVTY company, is seeking an Applied Scientist to advance neuro-symbolic AI and deploy AI solutions for national security and societal impact.

You will design, extend, and integrate deep learning with symbolic reasoning, probabilistic programming, and automatic program synthesis, collaborating with researchers and engineers to deliver core technologies and deployable AI systems.

Qualifications

• Bachelor's degree in computer science or related field.
• U.S. Citizenship with ability to obtain a security clearance.
• 3+ years building AI/ML systems or relevant graduate research.
• Strong math: probability, calculus, linear algebra.
• Proficient Python and Linux development (shell, Git, Docker).
• Experience with ML libraries (TensorFlow, PyTorch, JAX).
• Willing to learn new technologies and work in a hybrid schedule.

Responsibilities

• Design and implement state-of-the-art AI frameworks.
• Debug, profile, and refine complex AI systems.
• Collaborate with engineers and scientists.
• Lead or contribute to reports and papers.
• Foster relationships with customers.
• Develop and manage innovative R&D programs.

Skills

AI/ML Systems

Python

Linux Development

Security Clearance

Neuro-Symbolic AI

Shell & Git

Probability & Maths

Team Collaboration

Education

Bachelor's degree in CS

Tools

TensorFlow

PyTorch

JAX

Docker

Job description

Charles River Analytics, a GRVTY company, creates solutions and technology to tackle the world’s most challenging problems. Our team of technological entrepreneurs works together to advance the forefront of enhanced AI, robotics, smart sensing, and human-centered computing. The resulting research and development help to continuously advance government programs and discover new possibilities in the commercial marketplace. At Charles River, we take great pride in our success at attracting and retaining the most talented and creative problem-solvers in our field. Now as part of GRVTY, we offer the same trusted capabilities with increased organizational depth and expanded capacity across mission-critical national security domains. Are you ready to accelerate our mission-focused innovations? We’d love to hear from you!

We are seeking an Applied Scientist passionate about building next-generation neuro-symbolic AI. In this role, you will be not just applying AI technology but helping to build the next-generation version of that technology. You will be extending the cutting edge of deep learning and machine learning technologies, developing novel integrations with symbolic knowledge, probabilistic programming and Bayesian reasoning, automatic program synthesis, combinatoric optimization, and more. You will be collaborating with researchers, engineers, and subject-matter experts to build core technologies and deployable AI solutions solving complex problems with high impact on national security and society.

How you will make a difference

• Design, architect and implement state-of-the-art AI frameworks and solutions
• Debug, profile, and refine complex AI systems
• Collaborate with and/or manage software engineers and scientists
• Lead or contribute to writing reports and papers
• Foster relationships with customers
• Develop and manage highly innovative R&D programs

What you need

• Bachelor’s degree in computer science or related field
• U.S. Citizenship with the ability to obtain a security clearance
• 3+ years of experience building AI/ML systems or a completed graduate degree (M.S. or PhD) with academic research experience in AI/ML systems
• Good fundamental knowledge in probability, multivariable calculus, linear algebra, and related technical areas
• Moderate–to-advanced Python skills and practical Linux development experience (shell, Git, Docker)
• Strong working knowledge of at least one machine learning library (TensorFlow, PyTorch, JAX, etc.)
• Motivated to learn and apply new technologies
• Ability to accommodate a hybrid schedule (60% onsite, 40% remote)

Our preferred candidate has

• 5+ years of post graduate experience building AI/ML systems
• Experience with product deployment
• Experience as a writer or cowriter to DoW proposals/grants
• Expertise in deep learning and practical experience training, tuning, debugging, and profiling deep learning models
• Demonstrated effectiveness in delivering complex AI/ML solutions to end-users from concept to deployment
• Demonstrated effectiveness in strategically developing complex AI codebases over months-to-years
• Broad knowledge across a diversity of computer science research, including programming languages, knowledge representation, reasoning, optimization, robotics, computer vision, etc. a plus
• Active clearance

Salary Range

$120,000 - $200,000

The above salary range is an estimate based on the internal job level(s) for which this role is being considered. The final salary will be decided after careful evaluation of the individual's work experience, education, and overall qualifications. This range does not include the substantial total rewards, as listed below, that you will also be eligible for as an employee at Charles River Analytics.

Why Charles River?

Charles River Analytics thrives on collaboration and values each team member. We offer competitive compensation plus bonus and retirement contribution, with an attractive benefits package including 100% employer-paid medical and dental insurance, as well as vision, life, and disability insurance, paid maternity/paternity leave, tuition reimbursement, monthly gym allowance, free parking, generous paid time off, and a casual environment. We offer tremendous flexibility and value work-life balance. We are also accessible by public transportation. Charles River became an employee-owned company in 2012, to set the stage for the next-generation of innovation, service, and growth in R&D. As we entered 2026, we joined forces with GRVTY, gaining the scale and capacity to transition, field, and sustain our innovations faster and more effectively than ever before.

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file.

As set forth in Charles River Analytics’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection.As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measurethe effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categoriesis as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.