Staff Software Engineer (Java)

TL;DR

Staff Software Engineer (Java): Designing and scaling backend systems for a global research technology platform with an accent on high-volume data processing and event-driven architectures. Focus on optimizing performance-sensitive workflows, migrating to domain-based architecture, and implementing complex real-time integrations.

Location: Remote (Must be based in Spain)

Company

hirify.global is a global software leader in technology-enabled digital insights and research technology, automating the insights-gathering process for over 4,600 companies.

What you will do

• Design, implement, and scale backend systems that process large volumes of data.
• Develop and maintain event-driven and API-based integrations.
• Contribute to the migration of systems toward a more domain-based and scalable architecture.
• Build and optimize software for performance-sensitive, high-throughput, and low-latency workflows.
• Collaborate closely with data science and engineering teams to investigate technical problems and propose solutions.
• Influence and mentor junior and mid-level engineers.

Requirements

• 10+ years of backend software engineering experience with strong technical depth.
• Proficiency in Java, including deep knowledge of algorithms, data structures, and Big O notation.
• Experience with heavy data processing tools such as Spark, Kafka, Delta Lake, Parquet, and Avro.
• Hands-on experience with Python and/or PySpark.
• Proficiency with Docker, SQL, and NoSQL databases.
• Must be based in Spain.

Nice to have

• Experience with AWS, GCP, or other cloud providers.
• Experience with Pandas.
• Experience with the Spring framework and microservices.
• Experience working in large-scale data or analytics environments.

Culture & Benefits

• High degree of autonomy and freedom to innovate.
• Collaborative, international environment with a focus on diversity, equity, and inclusion.
• Recognized as one of Newsweek’s 2025 Global Top 100 Most Loved Workplaces®.
• Remote-first work culture within the designated region.