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Senior Java Developer
Компания: INFOPLUS TECHNOLOGIES
Город: Wrocław
Job Title: Senior Java Developer
Location: Wroclaw, Poland (Hybrid – 3 days in a week to onsite)
Job Type: B2B Contract
Exp level: 10+ yrs
Your role
Are you a strong software engineer who combines technical depth with a passion for building high quality, scalable solutions? Do you thrive in a fast paced environment where you can contribute to both engineering excellence and delivery outcomes?
Key responsibilities will be to
Design, build, and enhance Java Spring Boot microservices and REST and GraphQL APIs across the order and trade lifecycle, including order capture, validation, routing, execution, allocation, and booking.
Build event‑driven integrations using Kafka and ActiveMQ to deliver reliable, real‑time order and trade flows.
Develop AWS serverless solutions using Lambda, API Gateway, S3, Step Functions, DynamoDB, and CloudFormation, and manage data on PostgreSQL and MongoDB.
Apply engineering best practices, including clean code, CI/CD, secure SDLC, and automated testing with JUnit and Mockito.
Optimize the performance of low‑latency, high‑throughput services, contributing to resilient and scalable trading systems.
Build GenAI and LLM capabilities using retrieval‑augmented generation (RAG), vector databases, and Spring AI to enhance order and trade workflows.
Collaborate closely with Product Owners, Architects, and engineers, and contribute to code reviews, testing strategies, and trouble shooting of complex technical issues.
Apply DevOps practices, including monitoring, logging, and operational readiness in delivered solutions.
Support modernization efforts by helping evolve legacy systems toward modular, cloud‑native, and event‑driven architectures.
Your expertise
Software engineering & technical skills
Strong hands‑on experience in Java, building scalable microservices with Spring Boot, Spring MVC, and Spring Data, and designing REST and GraphQL APIs.
Experience with event‑driven messaging using Kafka and ActiveMQ, and with data stores such as PostgreSQL and MongoDB.
Experience delivering through CI/CD pipelines with automated testing using JUnit and Mockito, and applying performance optimization, reliability, and secure development practices to low‑latency, high‑throughput services.
Hands‑on experience with GenAI/LLM application development, including RAG, vector databases and Spring AI.
Ability to contribute hands‑on to development and problem solving of complex technical challenges.
Collaboration & delivery
Experience working in Agile delivery models.
Strong collaboration skills across engineering, product, and architecture teams.
Ability to communicate technical concepts effectively with both technical and non‑technical stakeholders.
Qualifications
Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field (or equivalent experience).
8+ years of hands‑on Java software engineering experience within large‑scale or complex environments.
Nice to have
Exposure to order management, trade execution, or trading platforms in financial services or wealth management.
Experience contributing to engineering standards, best practices, or shared components.