Applied Methods
~The MetaChange log

How the meta has changed

The Meta is a living taxonomy. When the job market invents a role, splits one in two, or lets one quietly die, the taxonomy has to follow, and every one of those decisions is logged here with the date, the reasoning, and the jobs it moved. A structural release adds or retires roles and bumps the major version; a definition release sharpens how existing roles are told apart.

current v7.08 releases · 7 structuralsince 4 April 2026
v7.0
5 September 2026
structural release

The deploy-seam restructure

+8 roles added2 retired16 role definitions updated2 function definitions updated839 jobs reclassified
ADDED
  • New engineering role for inference, model serving, kernels/CUDA/Triton, GPU/TPU performance, HPC and distributed-training infrastructure. Created because ~145 active jobs across ~50 companies were split between infrastructure_platform_engineer (~60) and ml_engineer (~35) with the rest scattered; the population is coherent and is the fastest-growing engineering specialism at AI infra companies. Populated by title-pattern move from infra/platform, ml_engineer, backend, applied_ai_engineer, database_systems, fullstack, software_engineer, research_engineer and member_of_technical_staff.

  • New sales_gtm role for Palantir-style customer-embedded strategists. 70+ active "Deployment Strategist" titles were sitting inside solutions_architect (670 jobs), where they were 19% of the role and structurally different work (outcome ownership, not architecture). Split out by title pattern.

  • New sales_gtm role for customer-facing applied-AI builders at model vendors. "Applied AI" titles (132 active) were scattered across 8 roles (solutions_architect 44, applied_ai_engineer 25, field_engineering_management 13, solutions_engineer 12, ml_engineer 8, client_partner 6...). Customer-facing population consolidated here; product-side stays in applied_ai_engineer, which was re-scoped to product-only.

  • Data Center Program ManagerBusiness Operations

    New operations role for data-centre / compute-capacity programme management (site selection, capacity delivery, DC launches, power projects). ~45 active jobs at 11 companies (Anthropic, OpenAI, Nebius, Nscale, CoreWeave, Crusoe, Cerebras...) were 18% of program_project_manager and a distinct population tied to the compute build-out.

  • New physical_systems role. hardware_electrical_engineer (348 active, 157 distinct titles) was two populations: electrical/power (~100) and mechanical/thermal/structural/fluid (~105). Split by title pattern; hardware_electrical_engineer re-scoped to electrical.

  • New finance role for billing operations, accounts receivable, credit and collections (order-to-cash back office). Flagged as a taxonomy gap by the June sweep (Credit & Collections Manager, no_role_fit). ~14 active jobs were split across revenue_accountant, accounts_payable_specialist, other_finance, other_operations and business_operations_manager.

  • GTM EngineerSales & GTM

    New sales_gtm role for engineers building GTM systems and growth tooling. "GTM Engineer" / "GTM Systems" / "Growth Engineer" titles (~40 active) were spread across revenue_operations, ai_agent_engineer, fullstack/frontend/software_engineer, business_applications_administrator, other_engineering and technical_program_manager. revenue_operations re-scoped to non-engineering.

  • New legal_compliance role for litigation, disputes, investigations and e-discovery. Flagged as a taxonomy gap by the June sweep (Litigation Counsel at Waymo, no_role_fit). Small population today (2 active, 9 all-time) but structurally distinct from commercial/general counsel; created so the classifier has a home for it.

RETIRED
  • Prompt Engineer (retired)

    Deprecated: 2 active jobs in 6 months, 6 ever; the predicted role never materialised as distinct work. Hidden; description marked DEPRECATED so the classifier stops using it. Remaining jobs reclassified individually.

  • Content & Knowledge Specialist (retired)

    Deprecated: 3 active jobs, all better served by content_and_social_media_manager / customer_enablement_specialist / technical_writer. Hidden; description marked DEPRECATED. Remaining jobs reclassified individually.

DEFINITIONS UPDATED
  • EngineeringfunctionGTM Engineer boundary now points to gtm_engineer; added Inference & Performance Engineer mention.
  • Sales & GTMfunctionAdded VERTICAL-PRODUCT GUARDRAIL: the exception must not pull a vertical AI company's in-house Legal/Finance/Marketing/Design/Product/Data/CS roles into Sales & GTM. Motivated by the Sept sweep backlog, where ~60 Harvey, DualEntry, EliseAI, Legora, Giga and Sierra in-house roles sat in other_sales_gtm at confidence 0.15-0.35.
  • Engagement ManagerCustomer SupportTitle rule added: every "Engagement Manager/Director/Lead" title at a vendor routes here (customer_support), with named exceptions. Previously the identical title split 22/21 between engagement_manager and client_partner plus 14 more across solutions_architect, other_sales_gtm, other_operations and implementation_specialist.
  • Solutions ArchitectSales & GTMRemoved Deployment Strategist and Applied AI Architect populations (→ deployment_strategist, applied_ai_architect); added routing-out notes; example_titles/keywords trimmed accordingly.
  • Applied AI EngineerEngineeringRe-scoped to product-side only; customer-facing applied AI → applied_ai_architect; inference → inference_performance_engineer.
  • Machine Learning EngineerEngineeringRemoved "Applied AI Engineer" from example_titles/keywords (was a misroute source); added routing to inference_performance_engineer, applied_ai_engineer and member_of_technical_staff.
  • Infrastructure & Platform EngineerEngineeringAdded routing to inference_performance_engineer; clarified MTS-titled infra jobs belong here by content.
  • Hardware & Electrical EngineerPhysical SystemsRe-scoped to electrical/power/PCB/RF; mechanical/thermal examples and keywords moved to mechanical_thermal_engineer.
  • Program & Project ManagerBusiness OperationsAdded routing to data_center_program_manager; removed TPM keyword.
  • Technical Program ManagerEngineeringAdded routing of data-centre/capacity TPMs to data_center_program_manager.
  • Client PartnerSales & GTMAdded exclusions: Engagement Manager titles → engagement_manager; Applied AI Architect/Engineer → applied_ai_architect.
  • Revenue & Sales OperationsSales & GTMRe-scoped to non-engineering; GTM Engineer / GTM Systems examples and keywords moved to gtm_engineer.
  • Forward Deployed EngineerEngineeringRemoved GTM Engineer example; added routing to deployment_strategist, gtm_engineer, applied_ai_architect.
  • Research EngineerResearch & ScienceAdded routing of kernels/inference infra to inference_performance_engineer and core training to member_of_technical_staff.
  • Accounts Payable & Payroll SpecialistFinanceAdded routing of AR/billing/collections to billing_ar_collections.
  • Revenue AccountantFinanceAdded routing of operational billing/AR/collections to billing_ar_collections.
  • General & Corporate CounselLegal & ComplianceAdded routing of litigation/disputes to litigation_counsel.
  • Model Training & Post-Training (MTS)Research & ScienceRedefined from a title bucket to a content role: "Model Training & Post-Training (MTS)". 218 active MTS-titled jobs were being routed by content into 8 roles while 75 sat here by title; the notes now state explicitly that the MTS title is not a signal and this role is for pre-/mid-/post-training, RL and training-data work only. Slug retained to preserve URLs and history.
v6.0
4 June 2026
structural release

A catch-all bucket for every function

+4 roles added
ADDED
  • Other Physical Systems (retired)Physical Systems

    Hidden catch-all bucket added so the physical_systems function can register jobs that fit no specific role instead of forcing them into the nearest real role. Every visible function now has an other_<function> bucket; catch-all volume is a taxonomy-gap signal, and catch-all jobs never appear on public role pages.

  • Other Product (retired)Product

    Hidden catch-all bucket added so the product function can register jobs that fit no specific role instead of forcing them into the nearest real role. Every visible function now has an other_<function> bucket; catch-all volume is a taxonomy-gap signal, and catch-all jobs never appear on public role pages.

  • Other Data & Analytics (retired)Data & Analytics

    Hidden catch-all bucket added so the data_analytics function can register jobs that fit no specific role instead of forcing them into the nearest real role. Every visible function now has an other_<function> bucket; catch-all volume is a taxonomy-gap signal, and catch-all jobs never appear on public role pages.

  • Other Research & Science (retired)Research & Science

    Hidden catch-all bucket added so the research_science function can register jobs that fit no specific role instead of forcing them into the nearest real role. Every visible function now has an other_<function> bucket; catch-all volume is a taxonomy-gap signal, and catch-all jobs never appear on public role pages.

v5.0
28 May 2026
structural release

Vertical-product GTM audit

+1 role added3 role definitions updated8 function definitions updated38 jobs reclassified
ADDED
  • New canonical role in sales_gtm function for federal/defense capture and proposal lifecycle work. Initial population: 17 jobs reclassified from account_executive / other_sales_gtm / sales_development_representative / program_project_manager across CHAOS Industries (10), Shield AI (2), True Anomaly (2), Helsing (1), Vannevar Labs (1), OpenAI (1). Distinguishes federal capture (RFP/RFI/IDIQ pursuit) from commercial quota-carrying AE work.

DEFINITIONS UPDATED
  • Customer SupportfunctionBroadened VERTICAL-SUPPORT PRODUCT EXCEPTION to include Cresta and Parloa explicitly, plus pattern-based language for conversational-AI / voice-agent platforms. Added Conversational Designer, Agent Architect, AI Deployment Manager to the routed-to-sales_gtm title list. Reason: Cresta conversation designers and Parloa Agent Architects were misrouting into customer_support despite the prior exception (which only named Sierra/Decagon/Ada/Crescendo).
  • Business OperationsfunctionRefactored VERTICAL-OPERATIONS exception to pattern-based + added PROPOSAL & CAPTURE BOUNDARY clause directing federal capture/proposal titles to proposal_capture_manager in Sales & GTM.
  • Customer SupportfunctionRefactored VERTICAL-SUPPORT exception to pattern-based AND added new VERTICAL-HEALTHCARE PRODUCT EXCEPTION (primary_vertical=healthcare) — covers Abridge / Ambience / Nabla clinical customer-facing roles.
  • Legal & CompliancefunctionRefactored VERTICAL-LEGAL exception from named-company list to pattern-based language referencing companies.primary_function / primary_vertical / builds_ai_applications (which classifiers now receive per-job). Removes maintenance burden of adding each new legal-AI co to the named list.
  • FinancefunctionRefactored VERTICAL-FINANCE exception to pattern-based.
  • Design & CreativefunctionRefactored VERTICAL-DESIGN exception to pattern-based.
  • MarketingfunctionRefactored VERTICAL-MARKETING exception to pattern-based.
  • People & HRfunctionRefactored VERTICAL-HR exception to pattern-based.
  • Technician & Skilled Trades (retired)Physical SystemsDefensive cleanup: stripped keywords and example_titles after May 7 retirement so the hidden role cannot accidentally absorb future jobs.
  • Solutions ArchitectSales & GTMReplaced named-list VERTICAL-PRODUCT GTM with pattern-based language referencing companies.primary_function / primary_vertical / builds_ai_applications.
  • Solutions EngineerSales & GTMSame pattern-based refactor as solutions_architect.
v4.0
7 May 2026
structural release

May review: robotics, trades and design leadership

+5 roles added11 role definitions updated136 jobs reclassified
ADDED
  • New canonical role in marketing function for customer marketing work — references, case studies, advocacy programs, customer advisory boards, customer events, ongoing engagement with the existing customer base. Created because partner_marketing_manager was absorbing 13+ customer-marketing jobs (vs ~8 actual partner marketing jobs); the populations are genuinely different work.

  • Design LeadershipDesign & Creative

    New canonical role in design_creative function for design management/leadership work — Manager/Director-level Product Design roles, Brand Design Directors, Art Directors, Creative Directors, Heads of Design, VP of Design. Created because creative_producer was absorbing ~10 design-leadership jobs out of 20 — the populations are genuinely different work (production vs design management).

  • Industrial TechnicianPhysical Systems

    New canonical role in physical_systems function for manufacturing technicians and skilled trades supporting AI hardware production — welders, painters, electricians, press brake operators, plant maintenance, manufacturing equipment technicians, electro-mechanical technicians (Crusoe, Figure AI BotQ, Helsing Production, Tractable, Graphcore). Split out of robot_operator_technician (now retired). 16 jobs reclassified into this slug.

  • Robot OperatorPhysical Systems

    New canonical role in physical_systems function for humanoid robot operations and robotics service work — operators (Figure AI, Skild AI, Physical Intelligence), robot service/prototype technicians, mechatronics technicians, robot field deployment ops. Split out of robot_operator_technician (now retired). 20 jobs reclassified into this slug.

  • Vehicle OperatorPhysical Systems

    New canonical role in physical_systems function for vehicle operations at autonomous vehicle companies — CDL operators, fleet specialists/technicians, vehicle diagnostic technicians, vehicle recovery (Waymo, Waabi). Split out of robot_operator_technician (now retired). 4 jobs reclassified into this slug.

DEFINITIONS UPDATED
  • AI Product ManagerProductAppended exclusion clause routing customer-embedded Strategist/Agent Development titles (Sierra pattern) to forward_deployed_product_manager. Anchor: customer-engagement-specific work goes to FDPM; product/roadmap-for-all-customers stays here.
  • Product StrategyProductReplaced null disambiguation_notes with internal-strategy framing and explicit redirect of customer-embedded "Strategist" titles (Sierra Agent Development, Deployment Strategist patterns) to forward_deployed_product_manager.
  • Forward Deployed Product ManagerProductAdded Sierra Agent Development pattern: extended example_titles with "Strategist, Agent Development" and "Product Manager, Agent Development"; rewrote disambiguation_notes (was null) to anchor on customer-embedded delivery as the routing signal regardless of title.
  • Forward Deployed Product ManagerProductRemoved "Deployment Strategist" from example_titles (it was dormant — zero jobs landed in FDPM via that signal — and misleading because the title predominantly routes elsewhere by description). Added disambiguation note that "Deployment Strategist" is polysemous across companies (FDPM at Databricks/Arena Physica, SA at most AI companies, CSM at Lovable, AE at Scale defense, IS at Serval); future routing must be description-driven.
  • Implementation & Deployment SpecialistCustomer SupportReplaced null disambiguation_notes with full framing. Established IS as the post-sale implementation/onboarding/deployment slug in customer_support, with explicit exclusion clauses redirecting FDE-engineering work to forward_deployed_engineer, technical-solutioning to solutions_architect/solutions_engineer, PM-flavoured customer-embedded work to forward_deployed_product_manager, manager titles for deployment teams to field_engineering_management, and customer-facing legal titles at legal-AI companies (vertical-legal exception) to solutions_architect.
  • Marketing & GTM AnalyticsData & AnalyticsTightened disambiguation_notes: codified marketing-measurement core (attribution, mix modeling, CAC/LTV/ROAS, segmentation) and added explicit exclusion clauses redirecting Director-level Marketing Ops to marketing_operations_analyst, generic / cross-cutting Data Scientist titles to data_scientist, and Sales/GTM Analytics in RevOps to revenue_operations.
  • Marketing Operations & AnalyticsMarketingExpanded disambiguation_notes to call out Director/VP Marketing Operations leadership titles and engineer-flavoured Marketing Ops Engineer/Architect titles as in-scope, with martech tooling examples (HubSpot, Marketo, SFMC) for clarity. Reaffirmed boundary with marketing_analytics (analytical methodology stays there).
  • Data ScientistData & AnalyticsReplaced null disambiguation_notes with framing: bare DS titles default here; domain-specific DS routes to that domain's analytics slug only when the role is dedicated to a single function; cross-cutting DS routes here. Added exclusions to ml_engineer, analytics_engineer, marketing_analytics, applied_research_scientist.
  • Partner Marketing ManagerMarketingRemoved "Customer Marketing Manager" from example_titles and "customer marketing" from keywords (now lives in the new customer_marketing slug). Expanded example_titles to better cover the partner-side scope (Strategic Partner Marketing, Co-Marketing Manager, Channel Marketing Manager, Enterprise Partner Marketer, Brand Partnerships Lead). Added explicit exclusion clause directing customer-marketing titles to customer_marketing.
  • Creative ProducerDesign & CreativeTightened example_titles and keywords to focus on production roles only. Removed "Art Director" and "Creative Director" from examples, removed "art director" and "creative director" from keywords. Added explicit exclusion clause directing design management titles to design_leadership.
  • Technician & Skilled Trades (retired)Physical SystemsRetired (is_hidden=true). Catch-all was absorbing three genuinely distinct populations (humanoid robot ops vs manufacturing trades vs vehicle ops). Split into robot_operator + industrial_technician + vehicle_operator. Data center technicians redirected to existing datacenter_field_technician slug. All 43 jobs reclassified out.
v3.0
25 April 2026
structural release

Energy & power joins the taxonomy

+1 role added1 role definition updated2 function definitions updated22 jobs reclassified
ADDED
  • Energy & Power ManagerBusiness Operations

    New canonical role in operations function. Covers energy procurement, PPAs, energy commercial development, power transaction management, load interconnection, and energy market development at AI infrastructure companies (Crusoe, CoreWeave, Nebius, hyperscalers). Validated externally — CoreWeave hires "Energy Procurement Manager" explicitly; Anthropic just built a dedicated energy team; hyperscaler energy procurement is a major and growing function as AI compute scales. Initial population: ~13 jobs at Crusoe and CoreWeave currently splintered across business_operations_manager, data_center_operations_manager, partner_channel_manager, financial_planning_strategy, other_sales_gtm, and other_operations.

DEFINITIONS UPDATED
  • Business OperationsfunctionAdded explicit PHYSICAL SECURITY BOUNDARY carve-out (security titles route to security function), and added ENERGY DEVELOPMENT BOUNDARY directing energy commercial / procurement / interconnect roles at AI infra companies to the new energy_power_manager canonical role.
  • SecurityfunctionAdded PHYSICAL SECURITY BOUNDARY claiming Physical Security / Site Security / Supply Chain Security / Crisis Management titles for the security function (previously misrouting to operations).
  • Physical SecuritySecurityBroadened from thin definition (2 example_titles, 3 keywords, no disambiguation) to cover Site Security Manager, Supply Chain Security Manager, Crisis Management Specialist, and corporate physical security roles. Added disambiguation against security_engineer_sec, data_center_operations_manager, and crisis management roles outside security orgs.
v2.0
19 April 2026
structural release

April follow-up: leadership roles

+2 roles added6 role definitions updated7 function definitions updated43 jobs reclassified
ADDED
  • Created new canonical role in people_hr function for Employee Experience PM / Employer Brand / Employee Listening / People Culture. Added disambiguation vs hrbp (strategic partnership), people_operations (HRIS/lifecycle), learning_development (training), compensation_benefits, brand_and_communications_manager (external brand).

  • Created new canonical role in marketing function for CMO / VP Marketing / Head of Marketing / Marketing Director. Added disambiguation routing specialist director titles (product marketing, growth marketing, partner marketing, brand, content, devrel) to their respective roles.

DEFINITIONS UPDATED
  • Business OperationsfunctionRewrote LEGAL BOUNDARY to carve out vertical-legal product companies. Added VERTICAL-OPERATIONS PRODUCT EXCEPTION for ops AI companies
  • Legal & CompliancefunctionAdded VERTICAL-LEGAL PRODUCT EXCEPTION to function disambiguation
  • FinancefunctionAdded VERTICAL-FINANCE PRODUCT EXCEPTION (Ramp, Mercury, accounting AI, FP&A AI)
  • People & HRfunctionAdded VERTICAL-HR PRODUCT EXCEPTION (HR tech, recruiting AI, employee experience AI)
  • MarketingfunctionAdded VERTICAL-MARKETING PRODUCT EXCEPTION (martech AI, content AI, marketing ops AI)
  • Design & CreativefunctionAdded VERTICAL-DESIGN PRODUCT EXCEPTION (Figma, Framer, design AI tools)
  • Customer SupportfunctionAdded VERTICAL-SUPPORT PRODUCT EXCEPTION (Sierra, Decagon, Ada, support AI)
  • Account ExecutiveSales & GTMAdded disambiguation excluding Partnership Director, Partner Specialist, Partnerships Manager titles - these route to partner_channel_manager
  • Solutions ArchitectSales & GTMAdded explicit disambiguation excluding Legal Engineer titles (all sub-specializations) - these route to legal_operations
  • Backend EngineerEngineeringReinforced GTM Tech / GTM Engineer exclusion (April 14 disambiguation did not catch "GTM Tech" variant)
  • Legal Operations & EngineeringLegal & ComplianceAdded VERTICAL-LEGAL PRODUCT EXCEPTION: at AI companies building legal products (Harvey, Legora, Luminance, etc.), customer-facing Legal Engineer titles are GTM not legal ops
  • Solutions ArchitectSales & GTMReverted incorrect Legal Engineer EXCLUDE clause. Added VERTICAL-PRODUCT GTM principle claiming domain-expert GTM roles across all verticals
  • Solutions EngineerSales & GTMAdded VERTICAL-PRODUCT GTM principle
v1.1
14 April 2026
definition release

First taxonomy review

9 role definitions updated4 function definitions updated11 jobs reclassified
DEFINITIONS UPDATED
  • SecurityfunctionAdded disambiguation: AI Safety / Product Safety Manager → Trust & Safety, NOT Offensive Security
  • Design & CreativefunctionAdded disambiguation: Copywriter → Marketing (unless UX Writer); Social Content Creator → Marketing
  • Business OperationsfunctionAdded disambiguation: compliance roles → Legal & Compliance; fleet/vehicle/CDL → Physical Systems; Legal-titled roles → Legal & Compliance; energy/commercial development → Sales & GTM
  • EngineeringfunctionAdded disambiguation: GTM Engineer / GTM Systems Engineer → Sales & GTM (Revenue Operations)
  • HR Business PartnerPeople & HRAdded Employee Relations and People Relations titles/keywords to capture ER/PR manager roles
  • Technician & Skilled Trades (retired)Physical SystemsAdded fleet specialist, vehicle operator, CDL titles/keywords for AV company fleet roles
  • Regulatory & ComplianceLegal & ComplianceAdded compliance manager and lab compliance manager titles/keywords
  • Trust & SafetySecurityAdded AI Safety, Product Safety, Responsible AI titles/keywords. Added disambiguation excluding Offensive Security
  • Backend EngineerEngineeringAdded disambiguation excluding GTM Engineer and Technical Solutions Specialist titles
  • Offensive Security & Red TeamSecurityAdded disambiguation: only for explicit red team/pentest roles, NOT AI Safety product roles
  • Revenue & Sales OperationsSales & GTMAdded GTM Engineer and GTM Systems Engineer titles/keywords
  • Content & Social Media ManagerMarketingAdded Social Content Creator and Content Creator titles/keywords
  • Legal Operations & EngineeringLegal & ComplianceAdded Legal Engineer sub-specialization titles (Tax, Consulting). Added disambiguation for any Legal Engineer title
v1.0
4 April 2026
structural release

The Meta launches

+1 role added
ADDED
  • The Meta launches: 15 visible functions and 147 canonical roles, each with a classifier description, example titles and keywords. Every job posting at the tracked AI companies is classified into a function and a role by the daily classify-jobs pass; skills and technologies are extracted per role from live postings.