Staff Machine Learning Engineer (Modeling), Support
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Job Location:
San Francisco, CA - USA
Monthly Salary:
Not Disclosed
Posted on:
06-11-2025
Vacancies:
1 Vacancy
Job Summary
Block is one company built from many blocks all united by the same purpose of economic empowerment. The blocks that form our foundational teams People Finance Counsel Hardware Information Security Platform Infrastructure Engineering and more provide support and guidance at the corporate level. They work across business groups and around the globe spanning time zones and disciplines to develop inclusive People policies forecast finances give legal counsel safeguard systems nurture new initiatives and more. Every challenge creates possibilities and we need different perspectives to see them all. Bring yours to Block.
The Role
Blocks Support ML Modeling team is a central driver of innovation in customer support experiences across our entire ecosystemincluding Cash App Square and other business units. We are dedicated to advancing the state of intelligent automated support through machine learning and generative AI. From customer-facing chatbots to smart internal tools for agents our team builds high-impact scalable systems that improve support quality efficiency and accessibility.
Were building the future of support at Block: one powered by AI voice interfaces and smart automation. Were looking for candidates with a passion for intelligent systems practical ML experience and a desire to build product-driven solutions. Our ideal candidate is a leader in the field with a proven track record of building ML systems that can accelerate our ability to scale our conversational AI initiatives.
You Will
Lead the end-to-end delivery of multiple ML initiatives from planning and design through rollout documentation and long-term maintenance
Partner strategically with risk product engineering design and operations leaders to define and drive long term ML roadmaps informed by domain expertise and industry trends
Guide the teams direction identifying new ML/AI opportunities and advising leadership on strategic tradeoffs and opportunities
Drive R&D efforts exploring next-generation chatbot architectures using LLMs RAG fine-tuning and real-time inference
Design deploy and maintain ML models powering conversational agents including support chatbots across Cash App Square and other Block products
Develop ML-powered tools and real time recommendation systems that enhance support agent effectiveness and customer outcomes
Act as the technical representative for your teams systems and programs clearly communicating work and results to stakeholders cross-functional partners and external audiences
You Have
10 years of experience in machine learning applied AI or product ML roles with deep technical expertise
Demonstrated leadership capabilities with the ability to influence and align cross-functional teams while directly shaping the work of peers through communication context sharing and technical guidance
A track record of delivering organizational wide impact shaping systems frameworks or initiatives that raise the bar across multiple teams or functions
Proven ability to ship end to end ML features from problem framing through deployment and long-term maintenance
Demonstrated experience with language models dialog systems or generative AI in production
Strong foundation in NLP deep learning or ML infrastructure best practices.
Excellent communication skills with the ability to represent the teams work to leadership and stakeholders
Enthusiasm for R&D and pushing the boundaries of applied AI to transform conversational systems
Technologies We Use and Teach
Python PyTorch TensorFlow or JAX
Were working to build a more inclusive economy where our customers have equal access to opportunity and we strive to live by these same values in building our workplace. Block is an equal opportunity employer evaluating all employees and job applicants without regard to identity or any legally protected class. We will consider qualified applicants with arrest or conviction records for employment in accordance with state and local laws and fair chance ordinances.
We believe in being fair and are committed to an inclusive interview experience including providing reasonable accommodations to disabled applicants throughout the recruitment process. We encourage applicants to share any needed accommodations with their recruiter who will treat these requests as confidentially as possible. Want to learn more about what were doing to build a workplace that is fair and square Check out our ID page.
While there is no specific deadline to apply for this role U.S. roles are typically open for an average of 55 days before being filled by a successful candidate. Please refer to the date listed at the top of this job page for when this role was first posted.
Block takes a market-based approach to pay and pay may vary depending on your location. U.S. locations are categorized into one of four zones based on a cost of labor index for that geographic area. The successful candidates starting pay will be determined based on job-related skills experience qualifications work location and market conditions. These ranges may be modified in the future.
To find a locations zone designation please refer to thisresource. If a location of interest is not listed please speak with a recruiter for additional information.
Required Experience:
Staff IC
Key Skills
- Computer Science
- Docker
- Kubernetes
- Python
- VMware
- C/C++
- Go
- System Architecture
- gRPC
- OS Kernels
- Perl
- Distributed Systems
About Company
Made up of Square, Cash App, Afterpay, TIDAL, Bitkey, and Proto, Block, Inc. builds technology to increase access to the global economy.
