Roles · NLP Engineer · Principal

What a Principal } should know

18 core skills, 52 in total. Expectations per skill, and what changes at the next level.

This page lists what a Principal } is expected to know and do, skill by skill. Core skills are the ones a manager and peers assess in a review cycle; the rest count only in self-assessment. Main areas: Backend Development, Data Engineering, Machine Learning & AI.

18core skills
34additional skills
4skill areas
100%at Advanced or Expert
Assess myself as Principal Full role matrix

Core skills for a Principal

Grouped by area. The label on the right is the expected depth: Awareness, Working, Advanced or Expert.

Backend Development · 1

Shapes enterprise search infrastructure strategy at organizational level. Defines architectural patterns for scaling text search and semantic retrieval for the NLP platform.

Data Engineering · 1

Shapes enterprise text data processing strategy at organizational level. Defines data processing standards, tool selection, and data pipeline architecture for the NLP platform.

Machine Learning & AI · 14

Shapes enterprise strategy for classical ML usage in NLP. Defines baseline model standards, evaluation methodology, and model selection governance at organizational level.

Shapes enterprise ML experiment management strategy for the NLP platform. Defines reproducibility standards, governance, and audit trail for all organizational NLP models.

Shapes enterprise LLM application strategy for the NLP platform. Defines LLM adoption roadmap, security policies, and architectural standards for all organizational NLP products.

ML Pipelines Expert

Shapes enterprise MLOps strategy for the NLP platform. Defines ML pipeline standards, model governance, and infrastructure for scaling NLP ML operations at organizational level.

MLflow Expert

Shapes enterprise MLflow strategy for the organizational NLP platform. Defines multi-team setup, centralized model registry, and experiment reproducibility standards.

Shapes enterprise NLP model monitoring strategy. Defines observability standards, degradation governance, and automated model lifecycle management at organizational level.

Model Serving Expert

Shapes enterprise model serving strategy for the NLP platform. Defines inference infrastructure architecture, optimization standards, and cost management at organizational level.

Shapes enterprise NER strategy for the organization. Defines unified entity taxonomy, cross-domain NER approaches, and quality assurance standards for all company NER systems.

PyTorch Expert

Shapes enterprise PyTorch strategy for the NLP platform. Defines model development standards, training infrastructure, and research-to-production pipeline at organizational level.

Shapes enterprise RAG strategy for the NLP platform. Defines architectural patterns, knowledge management standards, and retrieval infrastructure at organizational level.

Shapes enterprise sentiment analysis strategy. Defines unified sentiment analysis approach for all products, quality standards, and integration patterns at organizational level.

Shapes enterprise text classification strategy. Defines unified taxonomy, cross-domain classification approaches, and standards for all classification-based NLP products.

Shapes enterprise transformer strategy for the NLP platform. Defines model hub standards, shared fine-tuned models, and research-to-production workflow at organizational level.

Shapes enterprise vector search strategy for the NLP platform. Defines shared embedding infrastructure architecture and semantic retrieval standards at organizational level.

AI-Assisted Development · 2

Shapes enterprise strategy for commercial LLM usage in NLP tasks at organizational level. Defines integration architectural patterns, data security policies, and cost optimization.

Shapes enterprise prompt engineering strategy for the NLP platform. Defines prompt management standards, version control, governance, and optimization at organizational level.

Additional skills

Not assessed by the team, but part of the self-assessment and the development plan.

Algorithms & ComplexityAPI DocumentationAsync ProgrammingAWSCode Quality & RefactoringCode ReviewCursor IDEData StructuresDesign PatternsDockerGit AdvancedGitHub Actions / GitLab CIGitHub CopilotGraphQL DesigngRPC & Protocol BuffersIntegration TestingKubernetes CoreMultithreadingNetwork FundamentalsOOP & SOLID PrinciplesOpenTelemetryOWASP & Application SecurityPostgreSQLPrometheus & GrafanaPython Web FrameworksRedisREST API DesignS3 / Object StorageSecure Coding PracticesStructured LoggingSystem Design FundamentalsTask QueuesType Safety & Type SystemsUnit Testing
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} in the open competency matrix: 52 skills across 5 levels. The matrix is free for individuals and stays free.