Senior/Lead Java Developer with search engine expertise

2 Months ago • 5 Years + • Backend Development

Job Summary

Job Description

This role involves modernizing, maintaining, and developing an eCommerce platform for a large US-based retailer. Responsibilities include migrating the client platform, developing new features in Java and Kotlin for Spring Boot Microservices, improving personalized search, modernizing data ingestion, and collaborating with other teams. The ideal candidate will have strong Java/Kotlin, Spring Boot, and search engine experience (Lucene-based engines preferred), along with knowledge of semantic search, vector databases, embeddings, and LLMs. Experience with distributed systems, microservices, and containers is also crucial. The project prioritizes new brand onboarding, re-architecture, database migrations, and migrating microservices to a unified cloud-native solution.
Must have:
  • Kotlin, Java Spring Boot, Gradle
  • Search Engine experience (Lucene preferred)
  • Semantic Search/Vector DBs, Embeddings, LLMs
  • 5+ years enterprise backend system design experience
  • Spring/SpringBoot, Java/Kotlin
  • SQL/PostgreSQL Databases
  • Distributed systems, Microservices
  • Containers & Orchestration (Kubernetes etc.)
  • Agile & DevOps
Good to have:
  • Experience with distributed teams and US customers
  • Kafka/RabbitMQ, caching (Hazelcast/Redis)
  • Hybrid cloud environment experience

Job Details

Project description

The primary goal of the project is the modernization, maintenance and development of an eCommerce platform for a big US-based retail company, serving millions of omnichannel customers each week.
Solutions are delivered by several Product Teams focused on different domains - Customer, Loyalty, Search and Browse, Data Integration, Cart.
Current overriding priorities are new brands onboarding, re-architecture, database migrations, migration of microservices to a unified cloud-native solution without any disruption to business.

Responsibilities

We are looking for an experienced Java Developer with good understanding of search engines, who can help to perform migration of client platform:

Quickly onboard to Customer's processes

Develop new features in Java and Kotlin for Spring Boot Microservices, as well as maintain existing ones

Improve Personalized Search

Modernize Data Ingestion for faster searching and indexing

Collaborate with other teams and client to find the best solutions

Skills

Must have

English

B2 or higher;

Must have: Kotlin, Java Spring Boot, Gradle;

Must have: Experience of work with Search Engines

Must have: Semantics Search / Vector Databases , Embeddings and LLMs

At least 5 years of work experience including enterprise backend system design experience

Strong knowledge of Java/Kotlin language

Strong knowledge of Spring/SpringBoot

Good understanding of how search engines works (experience with Lucene based engines preferred e.g. Elasticsearch, Solr, etc.)

Good understanding of semantics search / vector databases , embeddings and LLMs

Experience of development in production

Familiarity with databases (SQL/PostgreSQL)

Deep understanding of enterprise application architecture patterns

Experience with distributed systems

Familiar with microservice architecture patterns

Familiar with Containers and Orchestration Systems (Kubernetes/PKS/OpenShift)

Adoption of Agile and DevOps culture

Strong written and verbal communication skills

Candidates need to provide a cover letter with following details:

Experience of work with Search Engines

Semantics Search / Vector Databases , Embeddings and LLMs

Nice to have

Experience of work in distributed teams, with US customers

Experience in working with Kafka/Rabbit and caching (Hazelcast/Redis)

Experience in a hybrid cloud environment or willing to learn new techniques and approaches

Other

Languages

English: B2 Upper Intermediate

Seniority

Senior

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About The Company

Luxoft, a DXC Technology Company (NYSE: DXC), is a digital strategy and software engineering firm providing bespoke technology solutions that drive business change for customers the world over. Acquired by U.S. company DXC Technology in 2019, Luxoft is a global operation in 44 cities and 21 countries with an international, agile workforce of nearly 18,000 people. It combines a unique blend of engineering excellence and deep industry expertise, helping over 425 global clients innovate in the areas of automotive, financial services, travel and hospitality, healthcare, life sciences, media and telecommunications.

DXC Technology is a leading Fortune 500 IT services company which helps global companies run their mission critical systems. Together, DXC and Luxoft offer a differentiated customer-value proposition for digital transformation by combining Luxoft’s front-end digital capabilities with DXC’s expertise in IT modernization and integration. Follow our profile for regular updates and insights into technology and business needs.

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