About Lineate
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.
Tech stack
Core: Java, Spring Boot, RxJava, Redis, MySQL, Apache Kafka
Additional technologies: Vespa, Elasticsearch, OpenSearch, Vector Search Technologies, AI/ML Infrastructure, Docker, Kubernetes
Key responsibilities
- Design, develop, and maintain scalable, high-performance backend services using Java and Spring Boot
- Take ownership of complex technical challenges, from identifying problems and proposing solutions to implementation and production delivery
- Contribute to architectural decisions and continuously improve system performance, scalability, and reliability
- Develop and optimize APIs, microservices, integrations, and event-driven systems using Kafka
- Proactively identify technical bottlenecks, propose improvements, and drive engineering initiatives
- Troubleshoot complex production issues and ensure high standards of code quality and maintainability
- Participate in technical discussions, code reviews, and architectural planning
- Collaborate with product and engineering teams to translate business requirements into reliable technical solutions
- Contribute to the development and optimization of search functionality and AI-powered features as needed
Must-have qualifications
- 8+ years of hands-on software engineering experience, with deep expertise in Java and production-grade backend development
- Strong proficiency in Java and Spring Framework / Spring Boot
- Architect-level technical expertise, including the ability to design complex backend systems, evaluate architectural approaches, and make sound technical decisions
- Strong understanding of distributed systems, microservices, scalability, performance optimization, fault tolerance, and reliability
- Solid experience with Redis, MySQL, and Apache Kafka
- Experience with reactive programming (preferably RxJava)
- Strong experience designing and developing APIs, backend services, and complex integrations
- Proactive and self-driven mindset: ability to identify problems and opportunities, propose solutions, develop actionable plans, and take ownership of implementatio
Nice-to-have qualifications
- Experience with Java 25+
- Experience developing and optimizing high-performance search systems
- Hands-on experience with full-text search, vector search, or semantic search technologies
- Production experience with Vespa, OpenSearch, Elasticsearch, Weaviate, Pinecone, Milvus, Qdrant, or similar platforms
- Experience building Retrieval-Augmented Generation (RAG) solutions
- Familiarity with AI/ML infrastructure and pipelines, including integrating machine learning models into production services
- Experience with embeddings, ranking, indexing, recommendation systems, and AI-powered services
- Knowledge of cloud platforms and containerized environments (Docker, Kubernetes)
- Experience with observability, monitoring, and performance analysis tools
- Previous experience in Staff, Principal, or Architect-level engineering positions
Working hours
Candidates must be available to overlap with the New York team from 9:00 AM to 1:00 PM ET. The remaining working hours are flexible.
We offer
- Freedom to Develop - equal opportunity to learn and grow professionally
- Clear career and professional path, strong performance management system
- Social Benefits Package
- Equipment
- English lesson
- Gym membership
- All the advantages of working in an international IT company
- Flexible vacation time
- Fun and inclusive in-person and digital events
Lineate is proud to be an Equal Opportunity Employer - We do not hire on the basis of race, colour, religion, creed, gender, national origin, citizenship, age, disability, veteran status, marital status, pregnancy, parental status, sex, gender expression or identity, sexual orientation, or any other basis protected by Gergian legislation. All employment is decided based on qualifications, merit, and business need.Learn more about Lineate at our website: www.lineate.com
Skills Required
- 8+ years of hands-on software engineering experience with deep Java and production-grade backend expertise
- Strong proficiency in Java and Spring Framework or Spring Boot
- Architect-level expertise designing complex backend systems and making technical decisions
- Understanding of distributed systems, microservices, scalability, performance optimization, fault tolerance, and reliability
- Experience with Redis, MySQL, and Apache Kafka
- Experience with reactive programming, preferably RxJava
- Experience designing and developing APIs, backend services, and complex integrations
- Proactive, self-driven mindset with ownership of problem identification, solution development, planning, and implementation
- Experience with Java 25 or later
- Experience developing and optimizing high-performance search systems
- Experience with full-text, vector, or semantic search technologies
- Production experience with Vespa, OpenSearch, Elasticsearch, Weaviate, Pinecone, Milvus, Qdrant, or similar platforms
- Experience building Retrieval-Augmented Generation solutions
- Familiarity with AI/ML infrastructure and production machine learning model integration
- Experience with embeddings, ranking, indexing, recommendation systems, and AI-powered services
- Knowledge of cloud platforms and containerized environments, including Docker and Kubernetes
- Experience with observability, monitoring, and performance analysis tools
- Previous Staff, Principal, or Architect-level engineering experience
What We Do
Lineate is a leading implementer of cloud solutions, helping AdTech and MarTech organizations scale their technology to manage vast data volumes. Our expertise in AdTech and MarTech along with our unique culture focused on knowledge breadth and creativity sets us apart in a competitive industry. With a global presence spanning seven countries, our client base is primarily in the United States and Western Europe. Why do our customers enjoy working with us? • Lineate is the market leader in developing custom software solutions for every kind of problem in the AdTech world • We are data obsessed problem solvers • We develop software that blows away the users of today... and delights the users of tomorrow • We believe in providing our engineers the freedom to develop performance and scalable software • We flourish in the complex, impossible and the “there is no way you can build that” software projects, it's our happy place Our AdTech Services: • Identity - Consent Management, Identity Graphs, Contextual Targeting • Optimization - Managing Publisher Yield and Optimizing Advertiser Performance • Insights - Real Time Reporting and Data Visualization • Data, Privacy & Security - Unification of Data Sources, Data Governance and Privacy, Risk Assessment and Fraud Detection • Cloud - Hybrid Cloud Solutions and Cloud Scalability
