Reddit

Staff Machine Learning Engineer, Ads Measurement

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The Ads Measurement Org is dedicated to enhancing the efficiency and intelligence of Reddit’s advertising platform. This role involves leading the technical strategy and architecture for Reddit’s identity resolution system, ensuring accuracy, scalability, and compliance with privacy requirements. Responsibilities include developing and refining ML models for probabilistic user matching, overseeing end-to-end ML workflows, partnering with cross-functional teams to define the roadmap, establishing engineering best practices, and mentoring junior engineers. The role also includes diving into complex technical challenges as needed.

Senior Machine Learning Engineer, Conversion Lift

<div><div class="c-message_kit__blocks c-message_kit__blocks--rich_text"> <div class="c-message__message_blocks c-message__message_blocks--rich_text" data-qa="message-text"> <div class="p-block_kit_renderer" data-qa="block-kit-renderer"> <div class="p-block_kit_renderer__block_wrapper p-block_kit_renderer__block_wrapper--first"> <div class="p-rich_text_block"> <div class="p-rich_text_section">Reddit is a community of communities. It’s built on shared interests, passion, and trust and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 101M+ daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit <a class="c-link" href="http://redditinc.com/" target="_blank" data-stringify-link="http://redditinc.com" data-sk="tooltip_parent">redditinc.com</a>.</div> </div> </div> </div> </div> </div><div>The Ads Measurement Org is dedicated to enhancing the efficiency and intelligence of Reddit’s advertising platform. We specialize in privacy-enhancing technologies, probabilistic user matching, and modeled conversions to enable measurement and delivery in a privacy-conscious world. We’re looking for a hands-on Staff Machine Learning Engineer with deep expertise in probabilistic modeling and user matching who can lead end-to-end Ads initiatives across engineering and cross-functional teams. You will drive architectural decisions, mentor your peers, and dive into complex technical challenges directly when needed. Our diverse group of engineers, product managers, data scientists, and ads specialists is excited to welcome you on board! Minimum Qualifications: <ul> <li>8+ years of professional software engineering experience, with at least 3+ years focused on ML-driven systems at scale</li> <li>Demonstrated experience architecting and building identity resolution, device graphs, or similar identity matching solutions leveraging probabilistic techniques</li> <li>Strong knowledge of various identifiers (cookies, hashed emails, phone numbers, IP addresses, user agents) and their use in identity resolution</li> <li>Proficiency in machine learning frameworks (e.g., TensorFlow, PyTorch) and libraries for feature engineering, model training, and inference</li> <li>Solid understanding of large-scale data processing, distributed computing, and data infrastructure (e.g., Spark, Kafka, Beam, Flink)</li> <li>Proven technical leadership in cross-functional settings, driving architectural decisions and influencing stakeholders (product, data science, privacy, legal)</li> <li>Excellent communication, mentoring, and collaboration skills to align teams on a long-term vision for identity resolution</li> </ul> Responsibilities: <ul> <li>Lead the technical strategy and architecture for our company’s identity resolution system, ensuring accuracy, scalability, and compliance with privacy requirements</li> <li>Develop and refine ML models for probabilistic user matching using multiple identifiers (cookies, IP addresses, hashed emails, phone numbers, user agents)&nbsp;</li> <li>Oversee end-to-end ML workflows—from data ingestion and feature engineering to model training, evaluation, and deployment—optimizing for performance and cost</li> <li>Partner with cross-functional teams (e.g., product management, data science, platform engineering, privacy, legal) to define the roadmap and set long-term goals</li> <li>Establish engineering best practices, code quality standards, and data governance guidelines to ensure maintainability and trustworthiness of the identity resolution system</li> <li>Mentor and coach junior engineers, fostering a culture of innovation, technical excellence, and knowledge sharing across the organization</li> </ul> If you're a talented software engineer looking for a new challenge, and you're passionate about building scalable, reliable products, we encourage you to apply for this exciting opportunity! What We Offer: <ul> <li>A dynamic, supportive work environment with a diverse team of engineers and cross-functional partners</li> <li>Opportunities for professional growth and development, with a focus on continuous learning and skill-building</li> <li>A competitive salary and benefits package, with a focus on work-life balance and employee well-being</li> <li>Flexible work arrangements, including remote work options, to support your individual needs and preferences</li> <li>The chance to work on high-impact projects that drive real results for our users and advertisers</li> </ul> Benefits: <ul> <li data-renderer-start-pos="3243">Comprehensive Healthcare Benefits and Income Replacement Programs</li> <li data-renderer-start-pos="3243">401k Match</li> <li data-renderer-start-pos="3243">Family Planning Support</li> <li data-renderer-start-pos="3243">Gender-Affirming Care</li> <li data-renderer-start-pos="3243">Mental Health &amp; Coaching Benefits</li> <li data-renderer-start-pos="3243">Flexible Vacation &amp; Reddit Global Days Off</li> <li data-renderer-start-pos="3243">Generous paid Parental Leave&nbsp;</li> <li data-renderer-start-pos="3243">Paid Volunteer time off</li> </ul> &nbsp; #LI-Remote</div>

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Let's assess your Data Structures! 📋 &nbsp;- This assessment gives us an idea of your problem solving skills using DSA - Companies that evaluate this skillset in interviews: MPL, LILA Games, GSN Games, etc. - 10 Multiple Choice questions - Average time to complete: 7 to 10 minutes

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HCL Tech

Senior technical specialist

Automation test lead embedded

Network Engineer/L2

Kotlin developer

Kubernetes Technical Lead

Project Lead with Scrum Master

Senior Designer

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Sr developer- native mobile app(android)

As a Senior Technical Specialist at HCLTech, you will be responsible for conceptualizing, designing, and delivering product/sustenance delivery, utilizing industry-leading practices. Your key responsibilities include architecting, designing, and developing solutions, serving as a Subject Matter Expert, ensuring knowledge up-gradation, and supporting competency development. You will gather specifications, deliver solutions, and implement industry best practices to contribute to the advancement and success of the project.

Sr. project lead with scrum master

Senior Project Lead with Scrum Master

<h4>Job Summary</h4>
<ul class="kenexa-jobs-row">
 <li class="kenexa-inline-field jobs-location">
 
 Location: London 
 </li>
 <li class="kenexa-inline-field jobs-designation">
 
 Project role: Senior technical specialist 
 </li>
 <li class="kenexa-inline-field jobs-skills">
 
 Skills: MsD_Sales 
 </li>
 <li class="kenexa-inline-field jobs-positions">
 
 No. of positions: 2 
 </li>
 </ul>
 <div class="jobs-description mt-4">
 <h4>Job description:</h4>
 
 About HCLTech HCLTech is a global technology company, spread across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. We re powered by our people a global, diverse, multi-generational talent - representing 161 nationalities whose unique spark, perspective and boundless passion drive our culture of proactive value creation and problem-solving. Our purpose is to bring together the best of technology and our people to supercharge progress for everyone, everywhere our clients, partners, their stakeholders, communities, and the planet. As a company, we are deeply focused on accelerating our ESG agenda. We are also creating technology-enabled sustainable solutions with and for our clients and partners. We embed ESG imperatives into every aspect of our business and ensure that the progress we supercharge is responsible, inclusive and beneficial to all our stakeholders in the long term. We have committed to achieving net zero by 2040. To learn more about how we can supercharge progress for you, visit <a href="/" target="_blank">www.hcltech.com</a> Senior Practice \Technical Specialist Job Summary To conceptualize, design and deliver product / sustenance delivery through the team as per defined scope,by adopting industry-leading practices, thus contributing significantly to the advancement and success of the project. <ul><li>Key Responsibilities 1. To architect| design and develop (through Team) solution for product/project &amp; sustenance delivery 2. To support as an Subject Matter Expert 3. To ensure knowledge up-gradation and work with new technologies so that the solution is current and meets quality standards and the client requirements 4. Ensuring a sufficient pool of skilled professionals in the designated technology, through activities such as conducting interviews, providing training sessions and offering mentorship. 5. To gather specifications and deliver solutions to the client organization based on understanding of a domain or technology. 6. To support competency development with envisioning and articulating propositions building collaterals/ whitepaper creation, market trend analysis etc. 7. To recommend client value creation initiatives and implement industry best practices (on specific technology/product) </li></ul>
 
 </div>

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Data Structures and Algorithms

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Programming Patterns

Let's assess your OOPs skills! ????- This assessment gives us an idea of your fundamental OOPS concepts and Solid principles skills- Companies that evaluate this skillset in interviews: Hitwicket, GSN Games, Tomo Club, etc.

Object Oriented Programming

Let's assess your Unity Skills ????- This assessment gives us an idea of your Unity fundamentals- Companies you can apply for after taking this assessment: Godspeed games, Salvation Games, nCore Games, etc.