Job Description
Note: The job is a remote job and is open to candidates in USA. CENSUS is a cybersecurity engineering powerhouse specializing in building secure and resilient systems. They are seeking a Principal Software Engineer, Applied AI (Technical Lead) to architect, build, and productize AI-enabled capabilities across their cybersecurity engineering solutions.
- Responsibilities
- Own the reference architecture for LLM/AI features (service boundaries, APIs, data contracts, trust boundaries, deployment patterns)
- Convert prototypes into production-ready services with clear interfaces, type/schema discipline, and controlled dependencies
- Define versioning strategy for prompts, tools, policies, and model endpoints (including rollbacks)
- Design and implement LLM pipelines for: Natural language → structured queries for database engines with guardrails
- Retrieval-augmented generation (RAG) where appropriate (vector stores, hybrid retrieval, context management)
- Safe tool execution (bounded retries, timeouts, sandboxing, rate limits, strict output schemas)
- Implement schema-first output (e.g., Pydantic models / JSON schema) and robust parsing/validation
- Own non-functional requirements: latency budgets, throughput, resilience, and cost control
- Implement production patterns: caching, batching, streaming responses, backpressure/queues, circuit breakers, idempotency, and graceful degradation
- Build observability: structured logs, traces, metrics, and error taxonomies that make failures actionable
- Implement AI security controls (prompt injection defenses, tool access controls, data minimization, audit logging) aligned with client requirements
- Translate requirements from client stakeholders and internal security / engineering teams into robust AI-enabled solutions and data integrations
- Lead technical delivery for AI components across client environments (cloud/on-prem), aligning with security, compliance, and operational constraints
- Own handover artifacts: architecture docs, runbooks, deployment guides, and support playbooks
- Document solutions and participate in knowledge transfer with internal and partner teams
- Act as the technical lead for Applied AI delivery: raise engineering bar, mentor DS/engineers, and drive code quality
- Own architectural reviews, refactoring plans, and prioritization of technical debt tied to reliability and delivery
- Skills
- BSc/MSc in Computer Science, Data Engineering, or a related field (or equivalent practical experience)
- 8+ years of software engineering experience, including technical leadership on production systems and AI-/ML-powered applications
- Track record of making architecture decisions and driving cross-team execution
- Strong Python engineering skills (services, tooling, testing) and experience building maintainable codebases
- Demonstrated experience shipping LLM/AI-enabled applications into production
- Proven ability to build robust APIs and services (FastAPI or equivalent)
- Experience with production reliability practices, including observability, incident response, performance tuning, and scalability
- Comfortable integrating with big data and analytics platforms
- Proven ability to define engineering standards and guide teams through architectural tradeoffs in ambiguous environments
- Excellent written and verbal communication in English; able to lead technical discussions with engineers and client stakeholders
- Experience with database query planning/optimization and guardrailed NL→SQL systems
- Experience with vector databases / retrieval systems (FAISS or managed equivalents) and hybrid retrieval strategies
- MLOps/serving experience: model gateways, inference optimization, caching strategies, cost controls
- Experience with Docker/Kubernetes and deployments in restricted/on-prem environments
- Security engineering exposure: threat modeling, secure coding, data handling requirements, and common AI security risks
- Company Overview
- CENSUS is an internationally acclaimed IT Security service provider. It was founded in 2008, and is headquartered in Thessaloníki, Thessaloniki, GRC, with a workforce of 51-200 employees. Its website is https://census-labs.com/.
- Company H1B Sponsorship
- CENSUS has a track record of offering H1B sponsorships, with 1 in 2024, 2 in 2023, 1 in 2022. Please note that this does not guarantee sponsorship for this specific role.
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