Senior Software Engineer, Java

Location: London, United Kingdom

Company

hirify.global is a European betting and gaming operator with more than 5,000 employees across around fifteen regulated markets, developing digital lottery, sportsbook, gaming, data, and customer-experience platforms.

What you will do

• Design and build distributed, real-time streaming components within a Flink-based architecture.
• Develop services covering the full bet lifecycle from acceptance through settlement, cancellation, and cashout.
• Implement complex financial calculations, including multi-bet and bet-builder logic, with accuracy and consistency at scale.
• Build exposure aggregation, real-time risk insights, and outcome-level liability alerting across brands, markets, and customers.
• Ensure correctness through robust handling of event ordering, duplication, idempotency, and strong consistency guarantees.
• Collaborate with trading and product teams while evolving modular systems and integrating downstream trader-facing tools.

Requirements

• 5+ years of software engineering experience building distributed systems.
• Excellent Java skills.
• Experience with streaming technologies; Apache Flink is preferred, with Kafka Streams, Spark Streaming, or similar also relevant.
• Solid understanding of event-driven architecture and asynchronous processing patterns.
• Experience handling at-least-once processing, idempotency, event ordering, and other data consistency challenges.
• Experience building high-throughput, low-latency systems in production.
• Ability to model complex domain logic and translate business requirements into robust technical solutions.
• Experience with cloud computing, ideally AWS.
• Proactive approach, comfort with uncertainty, and flexibility to learn through iteration.

Nice to have

• Experience in sports betting, trading platforms, or financial systems.
• Experience building real-time alerting or monitoring systems.
• Exposure to modern data platforms or lakehouse architectures.

Culture & Benefits

• Strong DevOps culture with fully automated CI/CD pipelines and frequent production releases.
• Focus on technical expertise, strategic thinking, experimentation, collaboration, adaptability, and continuous learning.
• Learning and development opportunities, social events, and inclusion networks.
• Employee Assistance Programme and private medical insurance.
• Long-service awards and pension.