Photon Logo

Photon

Principal ML Engineer - USA

Reposted 8 Hours Ago
Remote
Hiring Remotely in United States
48K-168K Annually
Senior level
Remote
Hiring Remotely in United States
48K-168K Annually
Senior level
Lead development of scalable AI/ML capabilities for Mail Intelligence: build LLM- and ML-based personalization, data pipelines, tools, and observability. Mentor engineers, collaborate cross-functionally, run A/B tests, implement feedback loops, and balance cost/quality/speed tradeoffs to deliver production-grade solutions.
The summary above was generated by AI
Greetings Everyone

Who are we? 

For the past 20 years, we have powered many Digital Experiences for the Fortune 500. Since 1999, we have grown from a few people to more than 4000 team members across the globe that are engaged in various Digital Modernization. For a brief 1 minute video about us, you can check https://youtu.be/uJWBWQZEA6o.

About the team:

The Mail Intelligence AI/ML platform is dedicated to developing scalable, intelligent capabilities that uncover user interests, reveal habits, and personalize journeys within Mail and the broader ecosystem. We seek innovative, entrepreneurial engineers who are passionate about delivering top-tier solutions. Your passion and ownership mindset are as vital as the high engineering standards, code quality, and architectural excellence we uphold. We leverage cutting-edge algorithms, including natural language processing, generative AI, large language models, and machine learning, to process billions of mail messages. This enables us to extract information, build mail content, enhance user knowledge, and connect diverse data sources to highlight and amplify key insights.

Our work presents rewarding technical challenges for high-caliber engineers eager to tackle impactful problems. You will develop tools and workflows to efficiently manage and utilize vast data, work on AI-based infrastructure, support new functionalities, and mine data for analytics insights and product features.

Responsibilities:

  • ​ Contribute to Mail Intelligence Mission: Support the development of AI/ML capabilities that enhance user personalization and insights.
  • ​ Innovate and Personalize: Assist in building scalable AI/ML solutions that identify user interests and habits, contributing to personalized user experiences.
  • ​ Technical Leadership: Guide and mentor a team of passionate engineers, fostering a culture of innovation and excellence. Your leadership will ensure the delivery of high-quality, user-centric solutions.
  • ​ Collaborative Development: Work with cross-functional teams to integrate new AI/ML features and improve existing platforms, ensuring smooth user interactions.
  • ​ Data-Driven Insights: Apply machine learning techniques and big data processing to derive insights from mail data, enhancing content and user knowledge.
  • ​ Tool and Workflow Development: Develop AI/ML tools and workflows to manage and utilize large datasets, supporting AI-based infrastructure and analytics.
  • ​ A/B Testing and Analysis: Run regular A/B tests, gather data, and draw conclusions on the impact of your models.
  • ​ Commitment to Excellence: Maintain high engineering standards, focusing on code quality and architectural skills, while delivering optimal user experiences.
  • ​ Feedback and Recovery: Implement feedback loops and recovery paths to handle AI failures gracefully, ensuring user satisfaction.
  • ​ Balance Tradeoffs: Manage cost, quality, and speed tradeoffs in AI/ML solutions to optimize performance.

A lot about YOU

  • ​ Educational Background: You have a strong foundation in computer science, data science, or a related field, with a focus on machine learning and AI technologies.
  • ​ Technical Skills: Proficient in programming languages such as Python or Java and machine learning frameworks like TensorFlow, PyTorch, and Scikit-learn. Skilled with AI tools such as Cursor, Copilot, and Claude.
  • ​ AI Skills: Advanced AI skills, including experience with AI development tools and frameworks.
  • ​ Problem-Solving Ability: You possess strong analytical skills and a knack for solving complex problems using data-driven approaches.
  • ​ Collaboration: You are a team player who can work effectively with cross-functional teams, including tech leads and architects, to deliver high-quality solutions.
  • ​ Passion for Innovation: You are enthusiastic about leveraging AI/ML to drive innovation and enhance user experiences across the broader ecosystem.
  • ​ Attention to Detail: You maintain high standards for code quality and are committed to delivering robust, scalable solutions.
  • ​ Continuous Learning: You are eager to stay updated with the latest advancements in AI/ML and apply them to improve products and services.

Qualifications

  • ​ Educational Requirement: Bachelor's degree in Computer Science, Data Science, or a related field; a Master's degree is a plus.
  • ​ Experience: 8+ years of experience in machine learning, data analysis, or a related field.
  • ​ Technical Proficiency: Expertise in Python, Java, or C++ and machine learning frameworks like TensorFlow, PyTorch, and Scikit-learn. Skilled with AI tools such as Cursor, Copilot, and Claude.
  • ​ Data and Infrastructure: Proficient in big data technologies (Hadoop, Spark) and modern ML infrastructure (Airflow, MLFlow, feature stores, vector databases, CI/CD for ML).
  • ​ Generative AI and Optimization: Hands-on experience with LLMs, generative AI (prompt engineering, Agent frameworks, fine-tuning, RAG, LLMOps), and GPU optimizations.
  • ​ Observability and Feedback: Familiar with observability, telemetry, and user feedback loops for product improvement.
  • ​ Algorithm Knowledge: Solid understanding of machine learning algorithms, natural language processing, and data mining techniques.
  • ​ Problem-Solving Skills: Demonstrated ability to solve complex problems and implement efficient, scalable solutions.
  • ​ Collaboration Skills: Ability to work effectively in a team environment and collaborate with tech leads, architects, and cross-functional teams.
  • ​ Communication Skills: Strong verbal and written communication skills to articulate complex technical concepts to non-technical stakeholders.
  • ​ Continuous Improvement: Eagerness to learn and adapt to new technologies and methodologies in the AI/ML domain.

Preferred Qualifications

  • ​ Mail Experience: Prior experience working with email systems or related technologies is a plus.
  • ​ Personal Attributes: Self-driven and detail-oriented, with a passion for tackling challenges. Strong teamwork spirit, excellent communication skills, and the ability to multitask and manage expectations effectively.
  • ​ Cloud Experience: Experience with public cloud platforms, especially Google Cloud Platform (GCP), is preferred.

Compensation, Benefits and Duration

Minimum Compensation: USD 48,000
Maximum Compensation: USD 168,000
Compensation is based on actual experience and qualifications of the candidate. The above is a reasonable and a good faith estimate for the role.
Medical, vision, and dental benefits, 401k retirement plan, variable pay/incentives, paid time off, and paid holidays are available for full time employees.
This position is available for independent contractors
No applications will be considered if received more than 120 days after the date of this post

Photon Chicago, Illinois, USA Office

11 East Adams Street Suite 1100, Chicago, IL, United States, 60603

Similar Jobs

32 Minutes Ago
Remote or Hybrid
United States
64K-64K Annually
Junior
64K-64K Annually
Junior
HR Tech • Information Technology • Professional Services • Sales • Software
Prospect and generate new business opportunities through outbound outreach, phone and email engagement, identify decision-makers and buying readiness, manage prospect data, and collaborate with marketing to build the top of the revenue funnel.
Top Skills: Linkedin Sales NavigatorOutreachSalesforceSalesloft
An Hour Ago
Remote or Hybrid
45K-85K Annually
Junior
45K-85K Annually
Junior
Artificial Intelligence • Fintech • Insurance • Marketing Tech • Software • Analytics
Handle inbound/warm insurance leads, consult customers on Property & Casualty coverage, close sales, and maintain required licensing. Participate in paid remote training, meet schedule and workspace requirements, and achieve sales targets with provided equipment and commission opportunities.
Top Skills: CableDslFiberPcWired High-Speed Internet (100 Mbps Down/20 Mbps Up)
3 Hours Ago
Easy Apply
Remote
United States
Easy Apply
Mid level
Mid level
Artificial Intelligence • Fintech • Hardware • Information Technology • Sales • Software • Transportation
Designs, delivers, and measures enablement programs for Downmarket Networks and SDR teams. Gathers field intelligence, builds AI-enabled learning tools, run trainings and coaching, partners with global enablement, and ensures programs drive measurable GTM outcomes.
Top Skills: ClaudeGeminiGleanSalesforce

What you need to know about the Chicago Tech Scene

With vibrant neighborhoods, great food and more affordable housing than either coast, Chicago might be the most liveable major tech hub. It is the birthplace of modern commodities and futures trading, a national hub for logistics and commerce, and home to the American Medical Association and the American Bar Association. This diverse blend of industry influences has helped Chicago emerge as a major player in verticals like fintech, biotechnology, legal tech, e-commerce and logistics technology. It’s also a major hiring center for tech companies on both coasts.

Key Facts About Chicago Tech

  • Number of Tech Workers: 245,800; 5.2% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: McDonald’s, John Deere, Boeing, Morningstar
  • Key Industries: Artificial intelligence, biotechnology, fintech, software, logistics technology
  • Funding Landscape: $2.5 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Pritzker Group Venture Capital, Arch Venture Partners, MATH Venture Partners, Jump Capital, Hyde Park Venture Partners
  • Research Centers and Universities: Northwestern University, University of Chicago, University of Illinois Urbana-Champaign, Illinois Institute of Technology, Argonne National Laboratory, Fermi National Accelerator Laboratory

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account