Java 25 and Spring Boot 4 Developer/Designer

Demartino Law; Paris; Hybride; EUR 90 000 - 130 000; Plein temps

Résumé du poste

Kéoni Consulting is seeking a senior Java 25 and Spring Boot 4 developer/designer for a new Azure-hosted project in Paris. You will drive application and technical design, specify requirements, and lead development within an agile team.

You will regularly use AI for development, conduct testing, and provide load and incident analyses. Strong autonomy and proactive problem solving are essential for this role.

Qualifications

• 9+ years of experience in software development
• Expertise in Java and Spring Boot ecosystems
• Knowledge of databases (Oracle, PostgreSQL) and APIs

Responsabilités

• Design and implement new features in Java 25 and Spring Boot 4
• Write unit tests and perform acceptance and load testing
• Analyze incidents and consider operational constraints
• Collaborate with Product Owner and squads in agile iterations
• Lead quality reviews and ensure alignment with architecture

Connaissances

Java

Spring Boot

JPA/Hibernate

Tomcat

Apache

Oracle

PostgreSQL

Elasticsearch

Azure

Payments domain

Description du poste

# Java 25 and Spring Boot 4 Developer/Designer* Home* Java 25 and Spring Boot 4 Developer/Designer* July 17, 2026* 0 Comments* By Roberte OkoyaContext and Mission Details: A new application needs to be developed to handle a new activity. This is a completely new project. The project is being conducted using Agile methodology. A high degree of autonomy and the ability to propose solutions are required for this mission. We are looking for an application designer to handle the application and technical design of the desired enhancements, and to propose implementation strategies within an innovative business context. MISSION: Within the Acceptance squad, the successful candidate will be responsible for the following activities: – Regular use of AI – Functional and technical specifications – Development – Unit testing – Acceptance testing of deliverables – Load testing – Incident analysis and consideration of operational constraints. The technologies used are Java 25 and Spring Boot 4. The application is hosted on Azure. Specific expertise: Spring Boot 3 & 4, Java 21 & 25 , JPA/Hibernate, Tomcat, Apache, Oracle, PostgreSQL, Elasticsearch , Azure . Knowledge of payment/electronic banking processes. PROFILE Authentication : Seniority: Over 9 years. Autonomy and a proactive approach are required for this role. The ideal candidate will possess strong technical skills, with a very high level of technical expertise (product, database, APIs, etc.). They must understand the functional requirements from the Product Owner or other squads. Experience leading squad members as a Scrum Master would be a plus.Application: CV + cover letter + copies of diplomas to be sent to [e-mail] in 2008, Kéoni Consulting is an IT consulting and engineering firm specializing in the banking, financial markets, insurance, and industrial sectors. We are the partner for major accounts in their digital transformation. We help them transform their business model, align their operational processes, select the best technologies, and mitigate and overcome the risks associated with digitalization. Kéoni Consulting helps companies to: Make a difference , innovate and create , reinvent their business, satisfy customers, gain a competitive advantage, become the leader in their sector, and become the leader in their sector. Our services cover the entire information systems lifecycle (Project Management, Business Analysis Consulting, Design, Implementation, Maintenance, Production, and Operations).**Job Category:** Digital Transformation**Job Type:** Full Time