Slack · 3 hours ago
Software Engineer, Machine Learning (Senior, SWE II & SWE I)
San Francisco, CA
Full-time
Onsite
Entry, Mid, Senior Level
$128K/yr - $260K/yrSlack is looking for a Senior Machine Learning Engineer to craft and implement features, services, and models to leverage data for enhancing their product. The role involves building data pipelines, training models, and collaborating with cross-functional teams to deliver impactful machine learning solutions.
CollaborationEnterprise SoftwareMessagingProductivity ToolsSaaS
Responsibilities
Leveraging machine learning and artificial intelligence subject matter expertise to drive improvements in the Slackbot experience
Develop ML models supporting ranking, retrieval, and generative AI use-cases
Brainstorm with Product Managers, Designers and Frontend Engineers to conceptualize and build new features for our large (and growing!) user base
Produce high-quality results by leading or contributing heavily to large multi-functional projects that have a significant impact on the business
Actively own features or systems and define their long-term health, while also improving the health of surrounding systems
Support in the development of sustainable data collection pipelines and management of ML features
Assist our skilled support team and operations team in triaging and resolving production issues
Mentor other engineers and deeply review code
Improve engineering standards, tooling, and processes
Qualification
Required
Experience with functional or imperative programming languages: PHP, Python, Ruby, Go, C, Scala or Java
Built with common ML frameworks like PyTorch, Tensorflow, Keras, XGBoost, or Scikit-learn
Fine tuned LLMs or BERT models
Experience building batch data processing pipelines with tools like Apache Spark, Hadoop, EMR, Map Reduce, Airflow, Dagster, or Luigi
An analytical and data driven mindset, and know how to measure success with complicated ML/AI products
Put machine learning models or other data-derived artifacts into production at scale
Led technical architecture discussions and helped drive technical decisions within the team
The ability to write understandable, testable code with an eye towards maintainability
Strong communication skills and you are capable of explaining complex technical concepts to designers, support, and other specialists
Preferred
Expertise in conversational agentic systems
Expertise in retrieval systems and search algorithms
Familiarity with vector databases and embeddings
Knowledge of using multiple data types in RAG solutions including structured, unstructured, and knowledge graphs
Broad experience across NLP, ML, and Generative AI capabilities
Benefits
Time off programs
Medical
Dental
Vision
Mental health support
Paid parental leave
Life and disability insurance
401(k)
Employee stock purchasing program
Company
Slack
Slack is a cloud-based communication and collaboration platform for teams.
Founded in 2009
1001-5000 employees
H1B Sponsorship
Slack 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
2022 (4)
2021 (72)
2020 (71)
Funding
Current Stage
Public CompanyTotal Funding
$1.39BKey Investors
SoftBank Vision FundThrive CapitalSocial Capital
2020-12-01Acquired
2019-06-20IPO
2019-01-28Secondary Market
Leadership Team
Richard Hasslacher
VP of Global Alliances & channels
Steve Hamrick
VP, Product Management
Recent News
Dallas Morning News
2026-01-25
2026-01-17
2026-01-16
Company data provided by crunchbase