Senior Java Engineer Poland

Zoolatech; Wrocław; On-site; PLN 180,000 - 280,000; Full time

Job summary

Zoolatech in Wroclaw is seeking a Senior Java Engineer to help build and maintain enterprise transportation services for a leading North American retailer.

As part of the Supply Chain Transportation Team, you will lead design and architecture across projects, write high-quality code, and mentor juniors in an agile environment. You’ll tackle performance and security issues and drive best-practice adoption.

Qualifications

• 5+ years of professional experience in Java programming language.
• Strong knowledge of data structures and distributed systems.
• Good written and spoken English.

Responsibilities

• Create frameworks to solve multiple business problems.
• Lead design and architecture on projects, write great code.
• Take ownership of solutions spanning multiple teams’ work, break work into smaller tasks for more junior engineers to support.
• Influence design within and across teams for projects by providing guidance on software design, development & industry best practices.
• Diagnose and remedy performance or security issues.
• Facilitates cross functional troubleshooting, root cause analysis.
• Surfaces potential design or delivery conflicts in the current product cycle and makes recommendations on the best options.
• Demonstrates expertise in industry standards for secure development practices.
• Expertise with telemetry solutions and products available in the industry.
• Contributes to community projects and engineering standards.

Skills

Java

Distributed systems

English (verbal/written)

Tools

Java Spring Boot

Docker

Kubernetes

AWS

GCP

Kafka

REST APIs

Job description

About Our Partner

Our Partner is one of the largest retail e-commerce companies in North America.

About Our Team

We are the Supply Chain Transportation Team, responsible for building and maintaining applications and services that drive our Partner’s Enterprise Transportation Service systems. Our work is a key part of the customer experience, ensuring seamless inventory management across multiple markets and channels.

We build new features and experiences using:

• Java Spring Boot
• AWS & Google Cloud Platform (GCP)
• Message Streaming Technologies (Kafka, etc.)
• Containerization & Orchestration (Docker, Kubernetes)

We operate in an agile, collaborative, and innovation-driven environment, where developers take full ownership throughout the software lifecycle.

As a Senior Java Engineer on the team, you will be responsible for:

Create frameworks to solve multiple business problems

Responsible for leading design and architecture on projects, write great code

Takes ownership of solutions, systems, or designs that span multiple teams’ work, breaking work into smaller tasks for more junior engineers to support.

Influences design within and across teams for projects by providing guidance on software design, development & industry best practices

Diagnose and remedy performance or security issues

Facilitates cross functional troubleshooting, root cause analysis

Surfaces potential design or delivery conflicts in the current product cycle and makes recommendations on the best options.

Demonstrates expertise in industry standards for secure development practices

Expertise with telemetry solutions and products available in the industry

Contributes to community projects and engineering standards

Must have:

5+ years of professional experience in Java programming language

Strong Knowledge of data structures and distributed systems

Good written and spoken English

Nice to have:

Proficient with Java, Java Spring Boot Framework, and Containerization (Docker/Kubernetes)

Experience with RESTful architecture and microservices

Experience with system design, architecture, scaling and performance testing

Experience with cloud technologies like AWS and/or GCP

Experience with relational and NoSQL databases

Experience with messaging technologies and patterns (Kafka/SQS)

Familiarity with CI/CD, Terraform and testing tools

Strong understanding of computer science fundamentals

Test automation experience at all levels (Unit, Integration, Regression, Load)

Familiarity with ops tools, logging, and metrics (New Relic, Splunk)

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