Software Engineer (Denver)

About the Role

We are looking for a Senior Software Engineer with full-stack developer with strong Java expertise and hands-on experience in building Retrieval-Augmented Generation (RAG) systems. You will design, develop, and deploy AI-powered applications on cloud-native infrastructure, working closely with cross-functional teams to deliver scalable, production-grade solutions.

Must-Have Requirements

Designed and implemented RAG pipelines end-to-end (document ingestion, chunking, embedding, vector storage, retrieval, and generation)

Experience with vector databases (e.g., Pinecone, Weaviate, pgvector, OpenSearch) and familiarity with LLM orchestration frameworks (LangChain, LlamaIndex, or similar)

POC-level experience is acceptable if depth of work is demonstrable.

Strong proficiency in core Java and Spring Boot / Spring Cloud

Building RESTful APIs and microservices at scale

Designing and operating event-driven architectures, Familiarity with Kafka Connect or Kafka Streams is a plus,

Deploying and managing containerized workloads on Amazon EKS

Writing and maintaining Helm charts for Kubernetes deployments

Working knowledge of EC2 instance management, networking, and IAM

Experience with NoSQL databases such as MongoDB Or Amazon DocumentDB and caching solutions like Redis.

Familiarity with CI/CD tools like Harness and monitoring/logging platforms like Splunk.

What You'll Do

Architect and build RAG-based features that integrate LLMs into existing product workflows

Develop high-throughput Java microservices backed by Kafka event streams

Package, deploy, and operate services on AWS EKS using Helm

Collaborate with data, platform, and product teams to define technical direction

Mentor junior engineers and contribute to engineering standards

Qualifications

B.Tech / B.E. / M.Tech in Computer Science or equivalent experience

5–7 years of professional software engineering experience

Strong communication skills and ability to work in an Agile environment

Self-driven with a bias for action and ownership

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. NLB is committed to providing access, equal opportunity and reasonable accommodation for individuals with disabilities in employment, its services, programs, and activities.