Senior Java / IBM ACE Developer

The Senior Java / IBM ACE Developer will join our technology team at a leading retail bank. This role focuses on designing, developing, and supporting enterprise-grade integration solutions using IBM App Connect Enterprise (ACE) and modern Java technologies. You will lead the development of mission-critical integration services supporting billing, payments, core banking, and external partner ecosystems. The role requires deep expertise in API integration, message transformation, event-driven architecture, and enterprise messaging patterns within a regulated banking environment. Key Responsibilities

• Design and develop integration solutions using IBM App Connect Enterprise (ACE)
• Build, deploy, and support message flows, REST/SOAP services, and event-driven integrations
• Develop and maintain Java-based services supporting enterprise integration patterns
• Design API integrations between core banking systems, payment platforms, and third-party services
• Implement messaging solutions using IBM MQ and/or Kafka
• Develop ESQL, Java Compute Nodes, message mappings, and reusable integration components
• Lead architecture discussions for enterprise integration and microservices connectivity
• Ensure scalability, high availability, and resilience of integration services
• Implement security best practices including OAuth2, JWT, TLS, and enterprise authentication standards
• Troubleshoot and resolve production issues including performance bottlenecks and message failures
• Conduct code reviews and enforce integration development standards
• Mentor junior developers on ACE development and integration best practices
• Collaborate with business analysts, architects, DevOps, and infrastructure teams
• Participate in CI/CD implementation and automated deployment pipelines
• Create and maintain technical documentation and interface specifications
• Support regulatory, audit, and compliance requirements in financial systems

• 5+ years of professional software development experience
• 3+ years of hands-on experience with IBM App Connect Enterprise (ACE) / IBM Integration Bus (IIB)
• Strong Java development experience (Java 8/11/17)
• Proven experience designing REST and SOAP services
• Experience with IBM MQ or enterprise messaging platforms
• Strong understanding of enterprise integration patterns (EIP)
• Experience with message transformation (XML, JSON, SOAP, EDI)
• Proficiency in ESQL and Java Compute Nodes
• Solid knowledge of API design and integration best practices
• Experience with Oracle databases, SQL, and PL/SQL
• Experience with Git and branching strategies
• Familiarity with containerization (Docker, Kubernetes)
• Experience working in Agile/Scrum environments
• Strong problem-solving and analytical skills
• Excellent communication and stakeholder engagement skills
• Bachelor’s degree in Computer Science, Software Engineering, or related field

Preferred Qualifications

• Experience in retail banking or financial services
• Experience integrating with payment systems and billing platforms
• Knowledge of Kafka or event streaming platforms
• Experience with Spring Boot microservices
• Familiarity with API management platforms (Swagger, Apigee, MuleSoft, Informatica)
• Experience with cloud platforms (AWS, Azure, GCP)
• Understanding of batch processing frameworks
• Experience with DevOps tools (Jenkins, GitLab CI, Azure DevOps)
• Knowledge of security standards in banking environments

Techstra Solutions is a certified woman-owned (WBENC) management consulting firm specializing in strategy, technology, and implementation services for large organizations undergoing digital and talent transformation. Our experienced team partners with clients to co-create innovative solutions in applications, data, AI, and automation that accelerate measurable, sustainable change. From advisory consulting through technical execution, we are dedicated to driving world-class business solutions that fit your strategic requirements and deliver results. For more information: www.techstrasolutions.com Equal Employment Opportunity Statement Techstra Solutions is an equal opportunity employer. The Company makes its decisions on merit, and its policy of equal opportunity prohibits discrimination in all phases of the employment process, including, but not limited to, recruitment, hiring, promotion, selection, transfer, demotion, layoff, termination, compensation, benefits, and other terms and conditions of employment. The policy of equal opportunity applies without regard to race, color, creed, religion, gender, sexual orientation, gender identification, pregnancy, marital status, national origin, ancestry, age, disability that can reasonably be accommodated without undue hardship, military status, veteran status, genetic predisposition or carrier status, alienage or citizenship, domestic partnership status, arrest or conviction record, status as a victim of domestic violence, or any other protected categories under federal, state, or local law. The Company also prohibits discrimination or harassment based upon the perception that a person has, or is associated with a person who has, any of these characteristics. Powered by JazzHR