Senior Java/Spring Backend Engineer, Synthetic Data, AI Team

This is a fully remote position, open to applicants in Spain, +2 more countries.

📋 Description

• Design and develop services and APIs that connect the Synthetic Data platform to Cint's marketplace.

• Create integrations with external survey hosting platforms.

• Incorporate questionnaires and response data into the Synthetic Data platform.

• Develop pipelines that standardize various questionnaire and response formats.

• Ensure data quality, along with consent and privacy compliance.

• Manage throughput, latency, cost, monitoring, and reliability of integration and ingestion processes in production.

• Collaborate with AI/ML engineers who are responsible for training pipelines and inference services.

• Utilize Claude Code and agentic programming tools as necessary.

• Support the development of Survey Augmentation, Audience Profiling, and Agentic Insights products.

⛳️ Requirements

• 3+ years of practical backend software development experience, preferably using Java.

• Strong background in Data Structures and Algorithms.

• Demonstrated experience as a Software Developer in prior roles.

• Experience in building and managing production services, APIs, and data pipelines at scale.

• Familiarity with SQL.

• Excellent problem-solving and analytical capabilities.

• Comfortable in presenting findings and influencing outcomes.

• Nice to have: knowledge of AWS, Kubernetes, Spring, Kafka/Kinesis.

• Nice to have: exposure to AI/ML development, model libraries such as XGBoost, LightGBM, CatBoost, or similar, as well as LLMs.

• Knowledge of Databricks is advantageous.

• Strong interest in AI/ML models and LLMs.

• Ability to work in Prague, Spain, or the UK, depending on the specified entity locations.

🏝️ Benefits

• Remote work options available from Spain or the UK.

• 25 days of annual leave.

• Unlimited sick leave.

• Pension fund contributions.

• Edenred meal vouchers.

• Provision of a company laptop (Windows/Linux/Mac) and accessories.

• Height-adjustable desk available at the Pankrác office.

• Full remote work is feasible.

• High level of autonomy and complete ownership of projects.

• AI-native engineering utilizing Claude Code and modern agentic tools.

• Opportunity to make a global impact by working on a marketplace used worldwide.