Senior Java Developer

Gravity 9 Solutions Ltd; Polska; Sur place; PLN 180 000 - 300 000; Plein temps

Résumé du poste

Gravity 9 Solutions Ltd in Poland is seeking a smart, enthusiastic backend software engineer with Java, MongoDB and cloud experience to help clients adopt the latest MongoDB across their applications.

You will take an active lead in team discussions and code reviews, deliver features, and guide less experienced developers in a collaborative, multi-disciplinary environment across complex projects.

Qualifications

• Proven experience with Java and MongoDB in a client-facing setting.
• Experience building microservices with Spring Boot and Spring Framework.
• Hands‑on experience with Docker and CI/CD pipelines; cloud familiarity (Azure/AWS).
• Comfort translating business requirements into technical solutions and leading code reviews.

Responsabilités

• Lead team discussions and code reviews to deliver features.
• Collaborate with clients and colleagues to identify, prioritise and deliver value.
• Guide less experienced developers and contribute to architecture discussions.
• Support upskilling across Node.js and Python as needed.

Connaissances

Java (8+)

Spring Framework

Spring Boot

MongoDB

NoSQL

Microservices

Docker

CI/CD

Maven/Gradle

Cloud (Azure/AWS)

REST/Async

Unit/Integration Testing

Node.js / Python basics

Outils

Docker

CI/CD pipelines

Maven/Gradle

Node.js

Python

Azure

AWS

Description du poste

Role Description

We are looking for a smart, enthusiastic backend software engineer with experience in MongoDB and a keen interest in current technology and engineering. Using your knowledge of Java and MongoDB, and engineering best practices, you will be involved in helping clients to adopt the latest version of MongoDB across a suite of their application. You will take an active lead in team discussions and code reviews and work collaboratively with your colleagues to identify, prioritise and deliver features which bring value to our clients. You will also guide less experienced developers.

We believe small, multi-disciplinary teams are most effective in delivering complex change. As such, we are looking for someone with a collaborative mindset who is happy to be flexible and take on different responsibilities over the lifetime of our projects.

Role requirements - technical skills and experience

• Excellent command / highly proficient in spoken and written English (working directly with UK/US-based clients)
• Expert in Java 8+ and ideally having Java 11/14/17 and OpenJDK experience
• Commercial experience with Node.js and/or Python is required
• Willingness to upskill in additional technologies, including Node.js and/or Python
• Hands‑on experience with MongoDB or other NoSQL DB, including data modeling in NoSQL databases
• Thorough understanding of Spring, especially Spring Boot, Spring Framework, Spring Data
• Experience working with Azure or AWS
• Understanding of Synch and Async communication (REST‑based, Queue and/or Topic based)
• Proficiency in working with Microservice Architecture
• Including containerization, high availability, and failover scenarios
• Experience writing unit and integration tests.
• Experience in working with Docker and containerized applications
• Experience in Maven/Gradle and working with CI/CD pipelines

• AI integration
• AWS Professional Certifications

Role requirements – soft skills

• Ability to understand business requirements and translate them into technical requirements
• Customer Focus – passion for understanding the problem we are trying to solve with software and to advocate solutions to your client.
• Delivery focus - strong analysis and problem‑solving skills. Ability to evaluate, design and implement effective solutions. Flexibility to adapt skills to a spectrum of client engagements, use cases and modes of change delivery.
• Exemplary standards of personal integrity and respect for others – professional approach to all aspects of client engagement and collaborative team working, able to quickly build relationships based on trust and transparency. Strong presentation and written and verbal communication are essential given the client facing nature of the role.
• Value driven - Creative thinking, with aptitude for innovation and strong desire to exceed client expectations.
• Energy – positive attitude and determination to learn and succeed.