Senior Software Engineer (Java)

Lineate is a US-based international software development company with over two decades of experience.

From Intelligent Document Processing(IDP) and Agentic RAG systems to scalable cloud architectures, we turn complex ideas into real, measurable results.

We deliver AI-driven custom solutions for FinTech, HealthTech, AdTech, and beyond, empowering businesses to grow smarter, faster, and more efficiently.

Our expertise falls into three main categories:

• Building Custom AI Solutions: Deploying high-impact, AI-enabled technology utilizing IDP, Agentic RAG.
• Cloud and Data Infrastructure: Optimizing business operations with our data management and cloud computing solutions.
• Team Augmentation: Providing specialized experts in FinTech, AdTech, and HealthTech to integrate seamlessly and accelerate project timelines.
• Our goal is not just to build technology, but to build the future operating model for our clients.

• 6+ years of commercial experience as a software engineer
• Java 17+ (Java 25 is a plus)
• Spring Boot 4
• Spring Data JPA
• Spring WebFlux and Spring Web
• Project Reactor
• SQL and MySQL
• Redis
• Understanding of multithreading and virtual threads
• Experience building low-latency, high-performance solutions
• Microservice architecture
• Understanding of basic cloud computing concepts; AWS experience is a plus
• Experience with metrics and dashboards; DataDog is a plus
• Experience preparing Kubernetes deployment configurations; Kustomize and ArgoCD are a plus
• REST APIs and gRPC
• Experience with CI; Bitbucket Pipelines is a plus
• Agile/Scrum

• AdTech experience, including advertising concepts, SSP/DSP, click-tracking architecture, and OpenRTB
• Vector search and embeddings; Vespa Cloud is a plus
• Elasticsearch or other search engines
• AWS S3
• Familiarity with Databricks
• Experience working with performance tests (Gatling is a plus)
• Experience working with ML models and ONNX Runtime
• Experience with Claude Code and/or OpenAI Codex