Java Developer (Big Data)

Job Description

You will join a senior technical team working on large‑scale, data‑intensive platforms in a regulated financial environment. The project focuses on backend development using OOP technologies, strong interaction with Data Lake ecosystems, and complex SQL‑based data processing, within a modern microservices and DevOps‑oriented architecture.

What You Will Do

• Design, develop and maintain backend components using Java and OOP principles
• Build and optimize SQL queries over large datasets (Oracle / PostgreSQL)
• Work with Data Lake environments and data integration flows
• Contribute to microservices architectures (Spring Boot)
• Collaborate in CI/CD pipelines using Git, GitHub Actions and Kubernetes
• Participate in Agile ceremonies and technical decision‑making
• Interact with functional teams in Transactional Regulatory Reporting contexts

Qualifications

What We Are Looking For

Must:

• Senior experience in Object‑Oriented Programming (Java – Expert level)
• Advanced JavaScript
• Strong SQL skills with Oracle (PL/SQL) and PostgreSQL
• Solid experience with Git and GitHub (Advanced)
• Hands‑on experience with Kubernetes
• Proven background in enterprise‑scale backend systems

Nice to have:

• Angular & TypeScript (intermediate level)
• Experience with Amazon S3 and Elastic
• Microservices with Spring Boot on OpenShift
• Messaging systems such as Kafka
• DevOps culture and tooling
• Agile environments (Jira, Confluence)
• Business exposure to Transactional Regulatory Reporting

Additional Information

What do we offer you?

• Remote position.
• Possibility to manage work permits.
• Permanent, full-time contract.
• Smart Office Pack so that you can work comfortably from home. 
• Training and career development.
• Benefits and perks such as private medical insurance, life insurance, Language lessons, etc
• Possibility to be part of a multicultural team and work on international projects.

If you are passionate about data, development & tech, we want to meet you !

Company Description

Talan – Positive Innovation

Talan is an international consulting group specializing in innovation and business transformation through technology. With over 7,200 consultants in 21 countries and a turnover of €850M, we are committed to delivering impactful, future-ready solutions.

Talan at a Glance

Headquartered in Paris and operating globally, Talan combines technology, innovation, and empowerment to deliver measurable results for our clients. Over the past 22 years, we’ve built a strong presence in the IT and consulting landscape, and we’re on track to reach €1 billion in revenue this year.

Our Core Areas of Expertise

• Data & Technologies: We design and implement large-scale, end-to-end architecture and data solutions, including data integration, data science, visualization, Big Data, AI, and Generative AI.
• Cloud & Application Services: We integrate leading platforms such as SAP, Salesforce, Oracle, Microsoft, AWS, and IBM Maximo, helping clients transition to the cloud and improve operational efficiency.
• Management & Innovation Consulting: We lead business and digital transformation initiatives through project and change management best practices (PM, PMO, Agile, Scrum, Product Ownership), and support domains such as Supply Chain, Cybersecurity, and ESG/Low-Carbon strategies.

We work with major global clients across diverse sectors, including Transport & Logistics, Financial Services, Energy & Utilities, Retail, and Media & Telecommunications.