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Senior Technical Expert Java

  • Remote
    • Wrocław, Dolnośląskie, Poland
  • PLN 22,000 - PLN 33,000 per month

Job description

As a Senior Technical Expert, you will be the technical cornerstone of our Data Marketplace—a platform built on Data Mesh principles. You will guide the evolution of a "shop-for-data" experience, moving our architecture from a robust Modular Monolith to a distributed Microservices ecosystem. You’ll be working with a cutting-edge stack (Java 21, AWS, AI-enhanced search) to ensure that "buying" digital assets is as seamless for our users as a consumer e-commerce experience. The end-goal is to build a comprehensive solution that enables FAIR data access to Digital Assets across the organization.



Key Responsibilities

  • Architectural Evolution: Lead the strategic transition from a modular monolith to microservices, ensuring domain boundaries are respected and performance remains high. Take ownership of the development of new components and ideas as you cooperate with a multidisciplinary team to deliver end-to-end experiences to the End Users.

  • Lead Development: Write clean, high-performance code using Java 21+ features (Virtual Threads, Pattern Matching) to handle complex data transactions.

  • Search & AI Innovation: Work on the roadmap to integrate AI/LLM capabilities into our search engine (Sinequa), enabling users to explore data assets via natural language and intelligent discovery.

  • Data Stewardship: Oversee the polyglot persistence layer, optimizing PostgreSQL for relational integrity and MongoDB for flexible metadata storage.

  • Cloud Leadership: Design and maintain scalable infrastructure within AWS, ensuring our CI/CD pipelines and deployment strategies are best-in-class.

  • Mentorship: Act as a force-multiplier for the team, conducting rigorous code reviews and setting the standard for technical excellence.


Job requirements

Technical Requirements

  • Strong experience with modern Java (21+) and Spring Boot 3.x

  • Hands-on experience with messaging technologies, ideally Solace

  • Good understanding of SPA architecture and frontend development with Angular and TypeScript

  • Familiarity with integration patterns and enterprise networking

  • Solid architectural knowledge, including modular monoliths, microservices, Data Mesh, and Domain-Driven Design

  • Experience working with PostgreSQL, MongoDB, and search platforms such as Sinequa

  • Practical experience with AWS services, including EC2, RDS, Lambda, and EKS

  • Experience with Infrastructure as Code, preferably Terraform


Who You Are

  • A Technical Visionary: You don't just solve today's bugs; you anticipate where the architecture will break two years from now.

  • Data-Centric: You understand that in a Data Mesh, the product is the data itself. You care about metadata, lineage, and discoverability.

  • User-Centered: You care about the end users experience and can cooperate with UX and Frontend developers to map and deliver first-in-class solutions.

  • Pragmatic Architect: You know when to stick with a monolith for speed and exactly when the "swell" justifies a move to microservices.

  • AI Curious: You are excited about moving beyond keyword search into the realm of semantic search and AI-driven data exploration.

 

The Roadmap: What You’ll Build

  1. Phase 1: Refine the modular boundaries of the current Java 21 application. Deliver scalable and extensible transaction modules enabling Request-to-Use processes within the DataMarketPlace

  2. Phase 2: Orchestrate the "Great Migration"—consolidate existing Marketplace ecosystems into DataMarketPlace on-boarding tens of thousands of assets and thousands of users.

  3. Phase 3: Integrate AI-driven exploration features atop our Sinequa search layer.


Salary:

22 000 - 33000 PLN + VAT (B2B)


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