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Wissen Technology is hiring for Calypso Java Developer About Wissen Technology: At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide. Founded in 2015, our core philosophy is built around a strong product engineering mindsetensuring every solution is architected and delivered right the first time. Today, Wissen Technology has a global footprint with 2000+ employees across offices in the US, UK, UAE, India, and Australia. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. We dont just meet expectationswe exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients with the flexibility to adapt to their evolving business needs. Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impactthe first time, every time. Job Summary: We are seeking an experienced Calypso Java Developer (6+ years) to work on building and supporting trading and posttrade systems within capital markets. The ideal candidate will have strong expertise in Core Java and Calypso (v16+), along with a solid understanding of financial instruments such as equities and FX. This role involves customizing Calypso modules, supporting business workflows, and collaborating closely with operations and business users. Experience: 6- 15 Years Location: Gurgaon Mode of Work: Hybrid Key Responsibilities: Design, develop, and maintain Java-based applications within the Calypso platform. Customize Calypso modules including Workflows, BOMessages, BOTransfers, Scheduled Tasks, Reports, and Engines. Work with Calypso APIs to build enhancements and integrations. Support trading lifecycle processes including trade capture, settlement, reconciliation, and reporting. Collaborate with operations and business teams to understand requirements and resolve issues. Troubleshoot production issues and provide application support. Write and optimize SQL queries for data analysis and reporting. Work with version control tools and follow development best practices. Participate in system upgrades, enhancements, and performance tuning activities. Required Skills and Qualification 6+ years of experience in Java development (Core Java JDK 1.8 or above). At least 34 years of hands-on experience with Calypso (v16 or higher). Strong expertise in Calypso customizations (Workflows, BO modules, Reports, Engines). Working knowledge of financial instruments such as equities and FX. Understanding of trading lifecycle (settlement, reconciliation, reporting). Strong SQL skills with experience in Oracle or Sybase databases. Basic knowledge of Unix/Linux commands. Experience using version control tools such as Git or SVN. Strong analytical, problemsolving, and debugging skills. Good communication and stakeholder interaction skills. Good to have Skills Experience working in investment banking or capital markets environments. Exposure to risk management, pricing models, or derivatives. Knowledge of messaging systems or integration frameworks. Familiarity with Agile methodologies. Experience working directly with operations/business users in a support role. Wissen Sites: Website: www.wissen.com LinkedIn: https://www.linkedin.com/company/wissen-technology Wissen Leadership: https://www.wissen.com/company/leadership-team/ Wissen Live: https://www.linkedin.com/company/wissen-technology/posts/feedView=All Wissen Thought Leadership: https://www.wissen.com/articles/ .
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In your interview, expect this: 'Walk me through the last time you had to debug something that took you more than an hour. What was it, what did you try first, and what would you do differently?' Hiring managers ask this to see if you think systematically or just try random fixes. Have a real example ready with specifics.