Systems Integration Senior Specialist

**Req ID:** 376024 NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now. We are currently seeking a Systems Integration Senior Specialist to join our team in Any NTT location, Karnataka (IN-KA), India (IN). **Role Responsibilities** - Design and develop enterprise-grade Java backend services and APIs. - Own end-to-end delivery of business domain modules. - Implement security, performance, and resilience best practices. - Support production systems, incidents, and continuous improvement initiatives. **Proficiency Scale** Working - Performs tasks with guidance. Proficient - Delivers independently. Advanced - Designs solutions and mentors. Expert - Sets standards and owns architecture. **Skills Matrix** **?** **MUST** **Category** **Skill Area** **Expected Proficiency** **What It Means in Practice** Core Engineering Java (Enterprise Backend) **Advanced** Designs clean, performant Java services; deep understanding of concurrency, memory, and JVM behaviour Multi-module Maven Projects **Advanced** Comfortable working across shared common modules and multiple business domains without introducing coupling REST / API Development **Advanced** Designs robust APIs with validation, error handling, idempotency, and backward compatibility Maven Build & Dependency Mgmt **Proficient** Manages POM hierarchies, resolves dependency conflicts, supports CI builds Security Application Security **Advanced** Implements secure defaults, understands authN/authZ flows, avoids common vulnerabilities Kerberos / Enterprise Auth **Working - Proficient** Can integrate, configure, and troubleshoot Kerberos-based or enterprise SSO authentication Platform Distributed Caching (Hazelcast) **Advanced** Designs cache topology, eviction strategies, and handles consistency/failover scenarios Integration Messaging Fundamentals **Proficient** Implements async flows with retries, idempotency, and failure handling Operations Production Support & Stability **Advanced** Investigates incidents, performs RCA, improves system resilience Networking API Networking Basics **Proficient** Understands behaviour behind load balancers, proxies, TLS termination **??** **SHOULD** **Category** **Skill Area** **Expected Proficiency** **What It Means in Practice** Observability Logging & Monitoring **Proficient** Integrates structured logs, metrics, and health checks (e.g., Filebeat/Heartbeat patterns) Performance Load / Stress Testing **Working - Proficient** Can run tests, interpret results, and tune obvious bottlenecks Resilience Reliability Patterns **Advanced** Applies timeouts, retries, bulkheads, graceful degradation consistently Domain Ownership Business Modules **Advanced** Owns end-to-end design for domains like Trades, Ledger, Statements Security MFA / Token Integrations **Working** Able to integrate and support OneSpan/Digipass-style mechanisms Engineering Practice Code Review & Standards **Advanced** Enforces quality standards, refactors legacy code safely Delivery Environment-Agnostic Design **Proficient** Ensures behaviour consistency across DEV/UAT/PROD **??** **COULD (Differentiators / Leadership Signals)** **Category** **Skill Area** **Expected Proficiency** **What It Means in Practice** Architecture Domain-Driven Design **Working - Proficient** Applies tactical DDD patterns where beneficial Platform API Gateway / DMZ Awareness **Working** Understands perimeter controls and gateway integration constraints Security Advanced Hardening **Proficient** Designs route allow/deny policies and defense-in-depth Quality Test Strategy Design **Proficient** Shapes unit/integration/E2E automation approaches Banking Knowledge Post-Trade / Ledger Concepts **Working** Understands core banking or post-trade lifecycles Leadership Mentoring & Technical Direction **Advanced** Coaches developers and influences technical direction (Tech Lead signal) **About NTT DATA** NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D. Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client's needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us . **_NTT DATA endeavors to make_** **_https://us.nttdata.com_** **_accessible to any and all users. 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