Senior Software Developer (Big Data / Java) in investment banking

Company: Quanteam Singapore (Permanent Position)
Location: Singapore

Job Description & Responsibilities

We are looking for an experienced Big Data / Java Software Developer to join a major technology transformation project within a large international financial institution. The team is responsible for developing and maintaining risk and finance systems used globally across multiple business lines. The role involves working on a high-impact initiative that modernizes a market risk data platform to enable real-time processing, regulatory compliance, and advanced analytics.

Your main responsibilities will include:

• Designing and developing data processing solutions using Java and Big Data technologies such as Spark and Kafka.
• Leading technical studies, preparing detailed design documents, and proposing scalable architectures.
• Implementing and maintaining CI/CD pipelines, automated testing, and code review processes.
• Collaborating with business analysts, project managers, and infrastructure specialists to deliver end-to-end solutions.
• Conducting performance tuning, system optimization, and quality assurance through rigorous testing and monitoring.
• Providing guidance and mentorship to junior developers, promoting best coding and design practices.
• Managing technical risks, troubleshooting complex issues, and ensuring timely project delivery.

Technical Skills Required

• Java / J2EE development (5+ years of hands-on experience).
• Big Data technologies: Spark (batch and streaming), Hadoop (HDFS, HBase, Hive), ORC/Parquet.
• Messaging systems: Kafka, Flume, ActiveMQ, MQSeries, or RabbitMQ.
• Build & CI/CD tools: Maven, Jenkins, TeamCity, Git/SVN, JUnit, Jira.
• Web services: RESTful APIs, microservices architecture.
• Experience with performance testing, monitoring, and debugging tools.

Nice-to-Have Skills

• Familiarity with Phoenix, ElasticSearch, Sqoop, or StreamSets.
• Understanding of financial systems or risk management concepts.
• Strong knowledge of solution design patterns and performance tuning.

Soft Skills & Mindset

• Excellent communication and analytical skills.
• Proactive, detail-oriented, and capable of working independently.
• Strong leadership qualities with an appetite for continuous learning.
• Ability to work collaboratively within international and multicultural teams.

Qualifications

• Bachelor's or Master's degree in Computer Science, Information Technology, or a related field.
• Minimum 8 years of software development experience, including 5+ years in Java and Big Data frameworks.