{"id":392522,"url":"https://alion.io/job/klaviyo-principal-engineer-core-infrastructure","title":"Principal Engineer, Core Infrastructure","company":{"id":6845,"name":"Klaviyo","domain":"klaviyo.com","url":"https://alion.io/company/klaviyo","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":82,"open_postings":22,"ghost_share":0,"stale_share":0.727,"repost_share":0,"time_to_fill_p50_days":57,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Boston, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":244000,"max":366000,"currency":"USD","period":"year","gross":null,"usd_annual":366000},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AIOps","optional":false},{"name":"CI/CD","optional":false},{"name":"Copilot","optional":false},{"name":"FinOps","optional":false},{"name":"Kubernetes","optional":false},{"name":"Platform Engineering","optional":false},{"name":"Service Mesh","optional":false},{"name":"SLI/SLO/SLA","optional":false},{"name":"SQL","optional":false},{"name":"Terraform","optional":false},{"name":"GDPR","optional":true},{"name":"Human-in-the-Loop","optional":true}],"status":"live","first_seen_at":"2026-01-08T15:43:02Z","employer_posted_date":"2026-09-04","last_verified_at":"2026-10-18T11:50:17Z","board_verified":true,"closed_at":null,"days_open":282,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":282},"description":"At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you’re a close but not exact match with the description, we hope you’ll still consider applying. Want to learn more about life at Klaviyo? Visit klaviyo.com/careers to see how we empower creators to own their own destiny.\nAs a hands-on principal for compute, networking, storage, runtimes (e.g., Kubernetes), CI/CD, and observability, you’ll architect the service platform that lets teams ship fast and safely. IC role-no direct reports-you lead via design, code, and incident excellence, setting technical standards and SLOs for platform services.\nWhat You’ll Do\nArchitect and evolve the Kubernetes platform, service mesh, networking, storage, and CI/CD pipelines; ship golden paths and IaC modules.\nDefine platform SLOs; use error budgets to guide reliability vs. velocity trade-offs; drive incident learning and readiness reviews.\nImprove developer velocity (build/deploy times, flaky tests, local dev ergonomics) with measurable results.\nLead capacity planning and commitments; build guardrails for cost, security, and compliance with Security/FinOps partners.\nWrite high-impact code, automation, and tooling; mentor across teams and raise the bar on operational excellence\nEmbed AI in the developer experience-from code generation to observability and incident response-so teams ship faster and safer by default.\nWho You Are\nExperience: 10+ years building and operating cloud platforms (compute, networking, storage, runtimes like Kubernetes), with a track record of multi-region HA and SLO rigor.\nTechnical expertise: Deep in Kubernetes, service mesh, Terraform/IaC, CI/CD, and production observability; you ship golden paths and guardrails that lift the whole org.\nExperience with databases and storage systems, including SQL and NoSQL databases, and object, block, or file storage platforms.\nAI tools & automation: You’ve brought AI into platform engineering-from copilot-assisted workflows and intelligent test generation to AIOps for incident triage, anomaly detection, and runbook automation-with clear security and cost boundaries.\nOps leadership: You lead via design reviews, incident excellence, and SLO/error-budget tradeoffs communicated in business terms.\nAI fluency: You’re hands-on with AI tools and help teams adopt them responsibly.\nNice to Haves\nCore SLOs & velocity: ≥99.95% SLOs for core services; 25-50% faster build/deploy times; developer-reported friction trending down.\nAI-enabled platform: Approved AI tooling is integrated into IDE/CI/CD with repo policies and auditability; ≥70% MAU among eligible engineers; MTTR down 20-30% via AI-assisted triage; flaky-test rate decreases through targeted, AI-suggested fixes.\nGuardrails in place: Cost, security, and compliance controls are codified as IaC modules and enforced in paved roads.\nExperience with enterprise governance, including compliance and audit requirements.\nFamiliarity with GDPR and data privacy considerations in large-scale, production environments.\nSuccess in 6-12 Months\n≥99.95% SLOs for core services; 25-50% faster build/deploy times; reduced developer-reported friction; incident recurrence trending down.\nWe use Covey as part of our hiring and / or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025.\nPlease see the independent bias audit report covering our use of Covey here\nMassachusetts Applicants:\n It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.\nOur salary range reflects the cost of labor across various U.S. geographic markets. The range displayed below reflects the minimum and maximum target salaries for the position across all our US locations. The base salary offered for this position is determined by several factors, including the applicant’s job-related skills, relevant experience, education or training, and work location.\nIn addition to base salary, our total compensation package may include participation in the company’s annual cash bonus plan, variable compensation (OTE) for sales and customer success roles, equity, sign-on payments, and a comprehensive range of health, welfare, and wellbeing benefits based on eligibility. \nYour recruiter can provide more details about the specific salary/OTE range for your preferred location during the hiring process.\nBase Pay Range For US Locations:\n$244,000—$366,000 USD\nThis role may require up to 10% travel for purposes such as new hire onboarding, client or partner work if applicable, team meetings, and industry events. Travel is coordinated in advance.\nGet to Know Klaviyo\nWe’re Klaviyo (pronounced clay-vee-oh). We empower creators to own their destiny by making first-party data accessible and actionable like never before. We see limitless potential for the technology we’re developing to nurture personalized experiences in ecommerce and beyond. To reach our goals, we need our own crew of remarkable creators-ambitious and collaborative teammates who stay focused on our north star: delighting our customers. If you’re ready to do the best work of your career, where you’ll be welcomed as your whole self from day one and supported with generous benefits, we hope you’ll join us.\nAI fluency at Klaviyo includes responsible use of AI (including privacy, security, bias awareness, and human-in-the-loop). We provide accommodations as needed. \nBy participating in Klaviyo’s interview process, you acknowledge that you have read, understood, and will adhere to our Guidelines for using AI in the Klaviyo interview Process. For more information about how we process your personal data, see our Job Applicant Privacy Notice.\n\nKlaviyo is committed to a policy of equal opportunity and non-discrimination. We do not discriminate on the basis of race, ethnicity, citizenship, national origin, color, religion or religious creed, age, sex (including pregnancy), gender identity, sexual orientation, physical or mental disability, veteran or active military status, marital status, criminal record, genetics, retaliation, sexual harassment or any other characteristic protected by applicable law.\nIMPORTANT NOTICE: Our company takes the security and privacy of job applicants very seriously. We will never ask for payment, bank details, or personal financial information as part of the application process. All our legitimate job postings can be found on our official career site. Please be cautious of job offers that come from non-company email addresses (@klaviyo.com), instant messaging platforms, or unsolicited calls.\nBy clicking \"Submit Application\" you consent to Klaviyo processing your Personal Data in accordance with our Job Applicant Privacy Notice. If you do not wish for Klaviyo to process your Personal Data, please do not submit an application. You can find our Job Applicant Privacy Notice here and here (FR).","description_format":"text","description_chars":7389,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Marketing Automation","Email Marketing","Customer Data Platforms (CDP) & Reverse ETL"],"lifecycle":[{"event":"open","at":"2026-09-05T23:28:24Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 55 · green card filings: 24","filings_12m":55,"filings_prev_12m":39,"green_card_filings_12m":24,"median_offered_wage_usd":152500,"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":46}],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.236,"p_room":0.28,"age_days":281,"expected_fill_days":57,"reasons":["conf:3","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":366000,"is_top_pay":true},"html_url":"https://alion.io/job/klaviyo-principal-engineer-core-infrastructure","json_url":"https://alion.io/job/klaviyo-principal-engineer-core-infrastructure.json","meta":{"generated_at":"2026-10-18T13:49:43Z","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":20534,"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":6845},"rest":"https://alion.io/mcp/rest/get_company?id=6845"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fklaviyo-principal-engineer-core-infrastructure"},{"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%2Fklaviyo-principal-engineer-core-infrastructure"},{"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%2Fklaviyo-principal-engineer-core-infrastructure"},{"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/klaviyo-principal-engineer-core-infrastructure\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fklaviyo-principal-engineer-core-infrastructure"}]}