Jobs in Salvador, Brazil

About the Role We are looking for a Data & Security Engineer to build, maintain, and secure analytics infrastructure for a prediction market platform (Forkast). This role sits at the intersection of data engineering, on-chain analytics, and security, with a strong focus on trade activity analysis, dashboarding, and anomaly detection.

You will be responsible for transforming raw on-chain and off-chain data into actionable insights, powering Hex dashboards, Dune Analytics, and internal monitoring systems that support product decisions, risk management, and market integrity.

• Data & Analytics
• Design and maintain Hex dashboards for real-time and historical market insights.
• Build and optimize Dune Analytics queries for on-chain trade activity, liquidity, user behavior, and market performance.
• Analyze trade activity across prediction markets to identify patterns, trends, and anomalies.
• Develop data pipelines to ingest, clean, and normalize blockchain and application-level data.
• Support forecasting and prediction market analytics (volume, liquidity, pricing efficiency, trader behavior).

• Monitor markets for suspicious trading behavior, manipulation, wash trading, or oracle exploitation.
• Build alerts and dashboards for risk and security events.
• Collaborate with protocol and smart contract teams to assess data-related security risks.
• Ensure data integrity, access control, and best practices for sensitive analytics infrastructure.
• Support Forkast market design with data-driven insights.
• Analyze market resolution accuracy, trader incentives, and pricing signals.
• Create metrics to evaluate market health and predictive performance.

• Technical Skills
• Strong experience with SQL (especially for Dune Analytics).
• Hands-on experience building Dashboards in Hex (or similar BI tools).
• Familiarity with blockchain data (Ethereum or EVM chains preferred).
• Experience analyzing on-chain trade activity and user behavior.
• Solid understanding of data security principles and monitoring systems.
• Nice to Have
• Experience with prediction markets, DeFi, or financial markets.
• Knowledge of smart contracts, oracles, and on-chain risk vectors.
• Python or similar language for data processing and automation.
• Experience with anomaly detection or fraud analysis.
• Familiarity with Forkast or similar platforms (Polymarket, Kalshi, etc.).

• Strong analytical mindset with attention to detail.
• Ability to translate raw data into clear, decision-ready insights.
• Security-conscious approach to data and infrastructure.
• Comfortable working in fast-moving, crypto-native environments.
• Proactive problem solver who can work independently.

• Work on cutting-edge prediction market technology.
• High ownership over data and security architecture.
• Remote-friendly, flexible working environment.
• Opportunity to shape market integrity and analytics at scale.

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