Flock Safety · 2 weeks ago
Staff Machine Learning Engineer, Multimodal Modeling
United States
Full-time
Remote
Senior Level, Lead/Staff
$200K/yr - $240K/yr
7+ years expFlock Safety is the leading safety technology platform, helping communities thrive by taking a proactive approach to crime prevention and security. As a Staff Machine Learning Engineer focused on Multimodal Modeling, you will lead the advancement of core embedding-based retrieval systems, fine-tuning multimodal models to improve performance and ensuring extensibility across evolving product use cases.
ManufacturingPublic SafetySecuritySensor
Responsibilities
Lead the advancement of core embedding-based retrieval systems with a primary focus on the scientific aspects of modeling
Fine-tune and extend multimodal models (e.g., CLIP, SigLIP) to improve performance, generalization, and cross-modal alignment
Work on unifying text and image representations, improving model performance, and ensuring extensibility across evolving product use cases
Qualification
Required
7+ years of industry experience in Machine Learning with a focus on representation learning, multimodal modeling, or embedding-based retrieval
Deep domain knowledge in at least one area: computer vision, natural language processing, or recommendation systems
Strong proficiency in PyTorch, with experience fine-tuning foundation models and adapting pretrained vision-language models to real-world tasks
Demonstrated ability to customize and extend model architectures, training loops, loss functions, and data pipelines to deliver impact
Experience with embedding-based retrieval, including contrastive learning, multimodal alignment, and designing evaluation methods for vector similarity search and embedding quality
Solid engineering fundamentals in Python, with familiarity in Git, SQL, and Bash
Comfortable working independently and navigating ambiguity, with a track record of solving open-ended modeling problems
Preferred
Familiarity with model compression techniques, such as distillation, quantization, and architecture pruning, to improve inference efficiency and deployability
Experience with vector search infrastructure, including provisioning, maintaining, and querying large-scale vector databases (e.g., FAISS, Weaviate, Pinecone)
Proficient with multi-GPU and distributed training workflows, to scale training of large multimodal models efficiently
Benefits
Flexible PTO : We seriously mean it, plus 11 company holidays.
Fully-paid health benefits plan for employees : including Medical, Dental, and Vision and an HSA match.
Family Leave : All employees receive 12 weeks of 100% paid parental leave. Birthing parents are eligible for an additional 6-8 weeks of physical recovery time.
Fertility & Family Benefits: We have partnered with Maven, a complete digital health benefit for starting and raising a family. In 2025, Flock will provide a $ 50,000-lifetime maximum benefit related to eligible adoption, surrogacy, or fertility expenses.
Caregiver Support: We have partnered with Cariloop to provide our employees with caregiver support
Carta Tax Advisor: Employees receive 1:1 sessions with Equity Tax Advisors who can address individual grants, model tax scenarios, and answer general questions.
ERGs: We want all employees to thrive and feel like they belong at Flock. We offer three ERGs today - Women of Flock, Flock Proud, and Melanin Motion. If you are interested in talking to a representative from one of these, please let your recruiter know.
WFH Stipend: $150 per month to cover the costs of working from home.
Productivity Stipend: $300 per year to use on Audible, Calm, Masterclass, Duolingo, Grammarly and so much more.
Home Office Stipend: A one-time $750 to help you create your dream office.
Company
Flock Safety
Flock Safety provides end-to-end surveillance solutions to support law enforcement and communities.
1001-5000 employees
H1B Sponsorship
Flock Safety has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (1)
2022 (2)
2021 (2)
Funding
Current Stage
Late StageTotal Funding
$655.58MKey Investors
Andreessen HorowitzTiger Global ManagementMeritech Capital Partners
2025-03-13Series F· $275M
2022-02-15Series E· $150M
2021-07-13Series D· $150M
Leadership Team
Garrett Langley
Founder & CEO
Mandy Schuler
Vice President Supply Chain
Recent News
Hypepotamus
2025-12-24
Company data provided by crunchbase