Machine Learning Engineer

Modulate is the leader in conversational voice intelligence. We enable enterprises to deeply understand how people communicate and take timely action based on those insights. Our products help detect harm, prevent fraud, and build safer, more trusted online and real-world voice environments. We are building a Conversation Intelligence Platform — APIs, workflows, and applications that bring voice understanding to customers at enterprise scale.We're looking for a Senior Machine Learning Engineer to help advance the state of voice understanding at Modulate. In this role, you'll design, train, evaluate, and deploy cutting-edge machine learning models that power our products. You'll work closely with researchers, engineers, product leaders, and executives to bring innovative ML solutions from concept to production.Your ImpactDevelop and deploy high-quality machine learning models that power Modulate's productsAdvance our capabilities in conversational voice intelligence through applied research and engineeringHelp translate business needs into scalable ML solutionsImprove model performance, reliability, and efficiency across our platformContribute to a collaborative, high-performing engineering cultureWhat You Will DoDesign, train, evaluate, and deploy machine learning models for production applicationsCollaborate with engineers, researchers, product managers, and company leadership to define and execute on ML initiativesConduct experiments to improve model quality, accuracy, robustness, and scalabilityPartner with platform and infrastructure teams to operationalize and monitor ML systems in productionAnalyze model performance and identify opportunities for improvementCommunicate technical findings, tradeoffs, and recommendations to both technical and non-technical stakeholdersContribute to technical strategy and help shape the future direction of Modulate's ML systemsReview code, share knowledge, and mentor teammates as neededStay current on advances in machine learning and identify opportunities to apply new techniques to our productsWhat We Are Looking ForExperience conducting machine learning research and shipping models to productionStrong experience building and deploying production-grade machine learning systemsStrong experience with Python and PyTorchExperience designing experiments and evaluating model performanceAbility to work across research and engineering disciplines to deliver business impactStrong communication skills and the ability to explain complex technical concepts clearlyExperience working collaboratively in cross-functional environmentsNice to HaveExperience communicating research externally through papers, conferences, or open-source contributionsExperience with audio models or speech systems (ASR, TTS, speaker modeling, etc.)Experience with cloud infrastructure, especially AWSExperience building and maintaining large-scale ML infrastructure or MLOps systemsExperience in fast-paced startup environmentsBenefitsCompetitive salary + equityFull health, dental, and vision coverageFlexible PTO with a strong culture of taking itWeekly team lunches with dietary accommodationsHybrid work with core in-office days and flexible remote optionsLeadership and technical learning sessionsCareer development and continued growth supportUp to 8 weeks work-from-anywhere policyA deeply inclusive, human-centered culturePay TransparencyModulate believes in transparency as a cornerstone of equity and trust. Compensation for this role is based on seniority, skills, and experience.Salary: $170,000-$200,000Equity: OfferedAdditional benefits include HSA, FSA, 15 company holidays, and professional development resources.Candidates may be located anywhere in the U.S., with preference for proximity to major tech hubs such as Boston, San Francisco, Seattle, New York, or Austin.About ModulateModulate is on a mission to make voice a force for good online. Our tools help communities thrive by proactively detecting toxic behavior, protecting user identity, and empowering safety teams. We're trusted by leaders in gaming and beyond—and we're growing fast.We believe that great cultures don't just happen. That's why we've built a foundation of intentional systems: from bias-reducing hiring practices to transparent pay to tools that help teams collaborate across communication styles. At Modulate, we treat people like people—and we're building technology that does the same.Ready to join us? Apply here or reach out directly—we're excited to meet you.A Quick Note as You ApplyPlease apply through the website rather than emailing careers@modulate.aiFor application questions ("Your fit for the role," "Your values/goals," and "Why Modulate?"), focus on relevant experience and motivationsAvoid including protected demographic informationKeep responses authentic and in your own voiceWe may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.