Engineering Manager, Ads ML Efficiency
Job description
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 126 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com. Reddit has a flexible workforce! If you happen to live close to one of our physical office locations our doors are open for you to come into the office as often as you'd like. Don't live near one of our offices? No worries: You can apply to work remotely in any country in which we have a physical presence. About the Role Reddit is building a dedicated Ads ML Efficiency function to make model training and inference materially faster, cheaper, safer, and more scalable. As the Engineering Manager for this team, you will lead a group focused on model optimization, training efficiency, GPU enablement, load testing, model performance tooling, and efficiency guardrails across Ads ML. This role sits at the intersection of ML modeling, systems optimization, and organizational leverage. You will partner closely with ranking teams, ML Platform teams and serving owners to identify the highest-value bottlenecks, land measurable efficiency wins, and build the tooling and operating mechanisms that make those wins repeatable. What you’ll do: Lead & Grow: Hire, mentor, and retain a high-performing team of ML engineers / systems-oriented engineers working on model optimization and ML efficiency. Set Technical Direction: Define the roadmap for training optimization, inference optimization, launch-readiness tooling, and reusable efficiency primitives across Ads ML. Deliver Measurable Wins: Drive reductions in model training time, online latency, serving cost, and infra-driven launch risk. Build Systems and Tooling: Guide the development of profiling, benchmarking, load testing, observability, cost analysis, debugging, and efficiency certification systems. Operate in the Critical Path: Partner with model owners and platform teams to accelerate high-priority launches and remove bottlenecks from the path to production. Shape the Team’s Evolution: Balance near-term white-glove optimization work with medium-term platformization and automation. Build XFN Alignment: Work closely with MLP, AMP, Ranking, and serving teams to clarify boundaries, upstream generic wins, and keep Ads needs on track. Raise the Bar: Establish engineering rigor around measurement, performance debugging, launch safety, and technical decision-making for efficiency work. What we’re looking for: Deep ML Engineering Experience: The candidate should have been close to the models themselves and understand training, serving, debugging, and optimization in depth. Hands-on Optimization Background: Direct experience improving training loops, serving systems, profiling workflows, model/inference efficiency, or GPU utilization. Strong Managerial Ability: Experience building and leading teams, coaching engineers, managing delivery, and making prioritization tradeoffs under ambiguity. Distributed Systems Fluency: Proven ability to reason about production-scale ML systems and the tradeoffs that govern reliability, speed, cost, and scale. Customer and Platform Instincts: Able to work as a service provider to modeling teams while still building reusable systems rather than only heroic one-offs. Strong Communication: Can explain technical tradeoffs clearly to engineers, PMs, and senior stakeholders. Ads experience: Experience in ads ranking, recommender systems, marketplace ML, or adjacent production ML domains is strongly preferred. Nice-to-have: Experience with GPU training and serving migrations. Experience with PyTorch, distributed training frameworks, or kernel/performance optimization. Experience building efficiency benchmarking or launch certification frameworks. Experience working in organizations where ML platform and applied modeling responsibilities are split across multiple teams. Benefits: Comprehensive Healthcare Benefits and Income Replacement Programs 401k with Employer Match Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support Family Planning Support Gender-Affirming Care Mental Health & Coaching Benefits Flexible Vacation & Paid Volunteer Time Off Generous Paid Parental Leave Pay Transparency: This job posting may span more than one career level. In addition to base salary, this job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible to receive a commission. Additionally, Reddit offers a wide range of benefits to U.S.-based employees, including medical, dental, and vision insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit https://www.redditinc.com/careers/. To provide greater transparency to candidates, we share base salary ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below. The base salary range for this position is: $230,000—$322,000 USD In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews. During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Inform
Similar jobs
Customer service manager (UK)
ParcelHero
ParcelHero is one of the UK's biggest parcel delivery price comparison sites, with over 5 million visitors a year. We're a scaling, technology-focused business with 120 remote staff worldwide - and we're growing fast, expanding internationally into the US and Europe this year. We serve both consumers and businesses in an almost 50/50 split, and our move into SaaS is shifting that mix further towards larger businesses and, ultimately, enterprise customers. In 2026, we launched our cutting-edge TMS (Transport Management Solution), Parcelhero Pro, enabling retailers to pay a monthly subscription to ship on their own carrier accounts and manage every aspect of their logistics through our platform. We're a highly innovative company, deeply focused on optimisation, automation, and continuous process improvement. Joining now means being part of the journey - helping shape our technology, our processes, and our approach as we scale globally. We're also a remote-first business: no commute, no office politics, just great work with talented colleagues around the world. Job description Are you passionate about improving the customer experience? Does coordinating across teams, countries, and time zones excite you? Parcelhero is looking for an experienced Customer Service Manager to lead our team leaders and 50-strong remote team, drive quality of service, and elevate the experience for both our consumer and business customers as we expand internationally. This is a high-pace, high-pressure environment. You'll need to be decisive, sharp, and comfortable making fast, sound judgement calls while managing competing priorities across departments and time zones. As our customer base shifts towards larger business and enterprise customers, you'll help evolve our service to meet their expectations. You will be responsible for driving cross-department collaboration between the customer service, customer experience, and QA teams - working closely with them to optimise processes and continuously improve the customer experience as we scale. Responsibilities Team Leadership: Manage and develop a team of team leaders overseeing a 50-strong remote customer service team, setting clear performance expectations and fostering high performance under pressure. Cross-Department Collaboration: Work closely with the Customer Experience and QA teams on customer journey optimisation, process improvement, and automation initiatives - ensuring the customer service team's insights and frontline experience feed directly into these efforts. Customer Feedback Management: Collect and analyse customer feedback (e.g., surveys, reviews) alongside the Customer Experience team to identify pain points and opportunities to enhance the overall experience. Service Quality and Metrics: Track and improve key service metrics, such as Net Promoter Score (NPS), customer satisfaction, and customer effort score, driving quality of service across the team. Cross-Functional Alignment: Collaborate with marketing, product, and technology teams to ensure all customer touchpoints (website, booking platform, support) align with customer needs and expectations. Customer Communication Strategy: Develop communication strategies to improve how customers are informed about delivery updates, service disruptions, and issue resolutions. Service Innovation: Identify opportunities to introduce new services, tools, or processes that enhance the customer experience, working with the relevant teams to bring them to life. Customer Education: Support initiatives to provide customers with educational content (e.g., how-to guides, FAQs) to improve self-service options and reduce the need for support. Vendor Relationship Management: Liaise with courier partners (DHL, FedEx, UPS) to ensure they provide services that meet or exceed customer expectations. Applicant criteria A minimum of 10 years' customer service experience. A minimum of 7 years' experience in a customer service management role, including direct oversight of large teams (40-50+ direct reports). Proven experience operating in a fast-paced, high-volume, high-pressure environment. A decisive, sharp decision-maker with excellent critical thinking and problem-solving skills. A track record of contributing to process improvement, optimisation, or automation initiatives. Experience serving both consumer and business customers is an advantage. A friendly and professional demeanour - you should genuinely enjoy interacting and building relationships with customers. Excellent communication skills, both written and verbal. Good levels of diplomacy when dealing with customer queries and complaints. A minimum typing speed of 40 wpm. Fluent English, both written and verbal. Experience in the parcel delivery, logistics, or e-commerce sector is beneficial but not essential. Key skills Leadership: Strong leadership and team management skills, with a proven ability to motivate and develop large customer service teams to achieve high performance under pressure. Decisiveness: Comfortable making fast, well-judged decisions in a demanding, time-sensitive environment. Problem-Solving: Excellent problem-solving skills, with the ability to handle complex delivery issues and escalations effectively. Collaboration: A natural collaborator who works effectively across departments - partnering with CX, QA, product, and technology teams to drive shared outcomes. Process and Automation Mindset: An appetite for optimisation, automation, and continuous improvement, and the frontline insight to help shape these initiatives. Customer Focus: A deep commitment to delivering outstanding customer service across both consumer and B2B audiences, with a strong understanding of differing customer needs and expectations. Communication: Excellent verbal and written communication skills for both internal team management and external customer interactions. Organisational Skills: H
Customer service manager (CY)
ParcelHero
ParcelHero is one of the UK's biggest parcel delivery price comparison sites, with over 5 million visitors a year. We're a scaling, technology-focused business with 120 remote staff worldwide - and we're growing fast, expanding internationally into the US and Europe this year. We serve both consumers and businesses in an almost 50/50 split, and our move into SaaS is shifting that mix further towards larger businesses and, ultimately, enterprise customers. In 2026, we launched our cutting-edge TMS (Transport Management Solution), Parcelhero Pro, enabling retailers to pay a monthly subscription to ship on their own carrier accounts and manage every aspect of their logistics through our platform. We're a highly innovative company, deeply focused on optimisation, automation, and continuous process improvement. Joining now means being part of the journey - helping shape our technology, our processes, and our approach as we scale globally. We're also a remote-first business: no commute, no office politics, just great work with talented colleagues around the world. Job description Are you passionate about improving the customer experience? Does coordinating across teams, countries, and time zones excite you? Parcelhero is looking for an experienced Customer Service Manager to lead our team leaders and 50-strong remote team, drive quality of service, and elevate the experience for both our consumer and business customers as we expand internationally. This is a high-pace, high-pressure environment. You'll need to be decisive, sharp, and comfortable making fast, sound judgement calls while managing competing priorities across departments and time zones. As our customer base shifts towards larger business and enterprise customers, you'll help evolve our service to meet their expectations. You will be responsible for driving cross-department collaboration between the customer service, customer experience, and QA teams - working closely with them to optimise processes and continuously improve the customer experience as we scale. Responsibilities Team Leadership: Manage and develop a team of team leaders overseeing a 50-strong remote customer service team, setting clear performance expectations and fostering high performance under pressure. Cross-Department Collaboration: Work closely with the Customer Experience and QA teams on customer journey optimisation, process improvement, and automation initiatives - ensuring the customer service team's insights and frontline experience feed directly into these efforts. Customer Feedback Management: Collect and analyse customer feedback (e.g., surveys, reviews) alongside the Customer Experience team to identify pain points and opportunities to enhance the overall experience. Service Quality and Metrics: Track and improve key service metrics, such as Net Promoter Score (NPS), customer satisfaction, and customer effort score, driving quality of service across the team. Cross-Functional Alignment: Collaborate with marketing, product, and technology teams to ensure all customer touchpoints (website, booking platform, support) align with customer needs and expectations. Customer Communication Strategy: Develop communication strategies to improve how customers are informed about delivery updates, service disruptions, and issue resolutions. Service Innovation: Identify opportunities to introduce new services, tools, or processes that enhance the customer experience, working with the relevant teams to bring them to life. Customer Education: Support initiatives to provide customers with educational content (e.g., how-to guides, FAQs) to improve self-service options and reduce the need for support. Vendor Relationship Management: Liaise with courier partners (DHL, FedEx, UPS) to ensure they provide services that meet or exceed customer expectations. Applicant criteria A minimum of 10 years' customer service experience. A minimum of 7 years' experience in a customer service management role, including direct oversight of large teams (40-50+ direct reports). Proven experience operating in a fast-paced, high-volume, high-pressure environment. A decisive, sharp decision-maker with excellent critical thinking and problem-solving skills. A track record of contributing to process improvement, optimisation, or automation initiatives. Experience serving both consumer and business customers is an advantage. A friendly and professional demeanour - you should genuinely enjoy interacting and building relationships with customers. Excellent communication skills, both written and verbal. Good levels of diplomacy when dealing with customer queries and complaints. A minimum typing speed of 40 wpm. Fluent English, both written and verbal. Experience in the parcel delivery, logistics, or e-commerce sector is beneficial but not essential. Key skills Leadership: Strong leadership and team management skills, with a proven ability to motivate and develop large customer service teams to achieve high performance under pressure. Decisiveness: Comfortable making fast, well-judged decisions in a demanding, time-sensitive environment. Problem-Solving: Excellent problem-solving skills, with the ability to handle complex delivery issues and escalations effectively. Collaboration: A natural collaborator who works effectively across departments - partnering with CX, QA, product, and technology teams to drive shared outcomes. Process and Automation Mindset: An appetite for optimisation, automation, and continuous improvement, and the frontline insight to help shape these initiatives. Customer Focus: A deep commitment to delivering outstanding customer service across both consumer and B2B audiences, with a strong understanding of differing customer needs and expectations. Communication: Excellent verbal and written communication skills for both internal team managemen