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Technical Lead/Architect - Full Stack Development (GenAI, Java 17+, Spring Boot, Microservices)

Pacer GroupAustin, TXL6 LeadNovember 11th, 2026
Job Title: Technical Lead/Architect - Full Stack Development (GenAI, Java 17+, Spring Boot, Microservices)
Location: Austin, TX
Work Arrangement: HybridEmployment Type: ContractDuration: 12+ MonthsDomain: Enterprise Software & Generative AI TechnologyPay Rate: $59.00/hr W2 | $72.00/hr C2CApplication Deadline: Nov 30th 2026No. of Openings: TwoSKILLS REQUIREDPrimary (Must-Have):
  • Java 17+ & Spring Boot 3.x | Microservices Architecture
  • Enterprise GenAI & LLM Integration | Spring AI | LangChain4j
  • RAG Pipelines | Vector Databases (pgvector | OpenSearch)
  • Distributed Messaging | Apache Kafka | PostgreSQLSecondary (Good to Have):
  • Cloud Architecture | AWS | GCP | Azure
  • Container Platforms | Docker | Kubernetes | Helm
  • Automated Testing | JUnit 5 | TestContainersPOSITION OVERVIEWSeeking an experienced Technical Lead to join our enterprise engineering department, reporting to the Director of Engineering, to solve the core business challenge of designing, securing, and scaling production-hardened Generative AI capabilities and RAG retrieval systems within high-throughput Java microservices ecosystems.
ROLES & RESPONSIBILITIES:
  • Lead the hands-on technical implementation and architectural blueprint for Java-based microservices embedding enterprise GenAI capabilities and intelligent automation pipelines.
  • Design, build, and optimize robust RAG pipelines, semantic caching, vector search indexing, and agent orchestration patterns.
  • Write and review production-grade, high-performance code in Java 17+ and Spring Boot, supporting REST endpoints and Apache Kafka event-driven integration.
  • Establish strict architectural guardrails for model security, prompt injection defenses, PII masking, data loss prevention, and token cost optimization.
  • Drive sprint execution, conduct PR code reviews, mentor engineering teams on best practices, and collaborate across stakeholders to resolve technical blockers.
BENEFITS: Medical | Dental | Vision | 401(k)EEOC Compliance:
We are an equal opportunity employer, and all qualified applicants will receive consideration for employment. DISCLAIMERAI Usage Policy: Pacer Group uses AI to assist in screening applications. Final hiring decisions are made by human recruiters based on qualifications and experience.