About the ProjectWe are seeking a Senior Java Backend Developer with strong architecture skills, who will also play a key role in collaborating with business stakeholders and supporting the due diligence process for a strategic platform transformation.The goal is to replace a complex and incomplete legacy system with a modern, clean REST API layer that integrates with Palantir Foundry.Beyond implementation, you will actively contribute to architectural decisions, validate design assumptions with business stakeholders, and ensure that the system meets both functional and strategic objectives.This is an opportunity to co-shape the architecture and business alignment before the first production release, and to take part in a long-term modernization effort.Responsibilities Act as a senior engineer and architectural partner, helping shape the system design and technical roadmap Participate in due diligence activities, validating requirements and aligning technical solutions with business needs Design and build REST APIs in Java that act as a bridge between an orchestration application and Palantir Foundry Collaborate with platform engineers, architects, and business stakeholders to define scalable data access and integration patterns Work with SDKs (not just REST APIs) to interact with Palantir's backend Ensure clean code practices and architecture-first design from the start Requirements 7+ years of experience in Java backend development Proven experience in system and API architecture design Experience in working closely with business teams Familiarity with domain-driven design  Experience working with SDKs or platform-specific APIs Technical education (engineering degree or equivalent in IT, computer science, or related field) Nice to Have Knowledge of Palantir Foundry Background in data modeling – logical and physical Understanding of TMF (TeleManagement Forum) specifications Experience with platform-based development environments (e.g., Salesforce, Mendix, OutSystems) Familiarity with API security (OAuth 2.0, tokens) Why Join This Project? High-impact senior role with strong influence on architecture and business alignment Involvement in due diligence and early design decisions before v1 goes live Long-term potential No legacy maintenance – focus on clean code, scalability, and clarity Exposure to Palantir Foundry – one of the most in-demand enterprise data platforms