{"id":129884,"url":"https://alion.io/job/nextdoor-seniorstaff-machine-learning-engineer-ads","title":"Machine Learning Engineer - Ads","company":{"id":21082,"name":"Nextdoor","domain":"nextdoor.com","url":"https://alion.io/company/nextdoor","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":91,"open_postings":8,"ghost_share":0,"stale_share":0.375,"repost_share":0,"time_to_fill_p50_days":52,"computed_at":"2026-10-17T05:46:00Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":205000,"max":355000,"currency":"USD","period":"year","gross":null,"usd_annual":355000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"ChatGPT","optional":false},{"name":"Claude","optional":false},{"name":"Machine Learning","optional":false}],"status":"live","first_seen_at":"2024-05-31T17:03:01Z","employer_posted_date":"2026-09-01","last_verified_at":"2026-10-18T06:46:18Z","board_verified":true,"closed_at":null,"days_open":869,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":869},"description":"#Team Nextdoor\nNextdoor (NYSE: NXDR) is the essential neighborhood network. Neighbors, public agencies, and businesses use Nextdoor to connect around local information that matters in more than 350,000 neighborhoods across 11 countries. Nextdoor builds innovative technology to foster local community, share important news, and create neighborhood connections at scale. Download the app and join the neighborhood at nextdoor.com.\nMeet Your FutureNeighbors\nAt Nextdoor, machine learning is one of the most important teams we are growing. Machine learning is starting to transform our product through personalization, driving major impact across different parts of our platform, including newsfeed, notifications, ad relevance, connections, search, and trust. Our machine learning team is lean but hungry to drive even more impact and make Nextdoor the neighborhood hub for local exchange. We believe that ML will be integral to making Nextdoor valuable to our members. We also believe that ML should be ethical and encourage healthy habits and interaction, not addictive behavior. We are looking for great engineers who believe in the power of the local community to empower our members to make their communities great places to live. \nAt Nextdoor, we operate in an AI-first environment and expect every team member to actively use AI tools as part of their workflow. We aren't looking for prompt engineers; we’re looking for people who use tools like Claude, Gemini, ChatGPT, and Glean to challenge their own thinking and take full ownership of AI-assisted outputs.\nWe also offer a warm and inclusive work environment that embraces a hybrid employment model, blending an in office presence and work from home experience for our valued employees. The hiring team will go over these expectations with you if you are being considered for a role near one of our offices in San Francisco, Los Angeles, Chicago, Dallas, New York, and London.\nTheImpact You’ll Make\nYou will be part of a scrappy and impactful team building data-intensive products, working with data and features, building machine learning models, and sharing insights around data and experiments. You will work closely with the Product and Data Science teams on a daily basis. Finally, you will help build the foundational patterns that ML engineers will use for years to come as we ramp up our effort to introduce machine learning into our platform\nCollect and gather datasets to build machine learning (ML) models that make real-time decisions for the Nextdoor platform\nAnalyze datasets and use important features to build low-latency models for decisions that need to be made quickly\nDeploy ML models into production environments and integrate them into the product\nRun and analyze live user-facing experiments to iterate on model quality by measuring impact on business metrics\nCollaborate with other engineers and data scientists to create optimal experiences on the platform\nParticipate in in-person Nextdoor events such as trainings, off-sites, volunteer days, and team building exercises\nBuild in-person relationships with team members and contribute to Nextdoor’s company culture\nWhat You’ll Bring To The Team\nB.S. in Computer Science, Applied Math, Statistics, Computational Biology, or a related field\n5+ years of industry/academic experience in applying machine learning at scale\nExperience in building ML models for advertising products\nProven engineering skills. Experience in writing and maintaining high-quality production code\nAbility to work with and analyze large amounts of data\nAbility to succeed in a dynamic startup environment\nRewards\nCompensation, benefits, perks, and recognition programs at Nextdoor come together to create our total rewards package. Compensation will vary depending on your relevant skills, experience, and qualifications.\nThe starting salary for this role is expected to range from $205,000 to $355,000 on an annualized basis, or potentially greater in the event that your 'level' of proficiency exceeds the level expected for the role. The salary range will be determined by the candidate’s geographic location.\nWe expect to award a meaningful equity grant for this role. With quarterly vesting, your first vest date will take place within 3 months of your start date.\nWhen it comes to benefits, we have you covered! Nextdoor employees can choose between a variety of health plans, including a 100% covered employee only plan option, and we also provide a OneMedical membership for concierge care.\nAt Nextdoor, we empower our employees to build stronger local communities. To create a platform where all feel welcome, we want our workforce to reflect the diversity of the neighbors we serve. We encourage everyone interested in our mission to apply. We do not discriminate on the basis of race, gender, religion, sexual orientation, age, or any other trait that unfairly targets a group of people. In accordance with the San Francisco Fair Chance Ordinance, we always consider qualified applicants with arrest and conviction records.\nFor information about our collection and use of applicants’ personal information, please see Nextdoor's Personnel Privacy Notice, found here.\n#LI-Hybrid #LI-Remote","description_format":"text","description_chars":5204,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Advertising","Social Networks"],"lifecycle":[{"event":"open","at":"2024-05-31T17:03:01Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 32 · green card filings: 2","filings_12m":32,"filings_prev_12m":42,"green_card_filings_12m":2,"median_offered_wage_usd":189853,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":27}],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.199,"p_room":0.28,"age_days":868,"expected_fill_days":52,"reasons":["conf:0","velocity","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":355000,"is_top_pay":true},"html_url":"https://alion.io/job/nextdoor-seniorstaff-machine-learning-engineer-ads","json_url":"https://alion.io/job/nextdoor-seniorstaff-machine-learning-engineer-ads.json","meta":{"generated_at":"2026-10-18T09:16:38Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":13810,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":21082},"rest":"https://alion.io/mcp/rest/get_company?id=21082"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnextdoor-seniorstaff-machine-learning-engineer-ads"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fnextdoor-seniorstaff-machine-learning-engineer-ads"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fnextdoor-seniorstaff-machine-learning-engineer-ads"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/nextdoor-seniorstaff-machine-learning-engineer-ads\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnextdoor-seniorstaff-machine-learning-engineer-ads"}]}