Senior Java / IBM ACE Developer

Role Overview

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 Required Qualifications/Skills

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

Locations: Pittsburgh, PAAbout Techstra Solutions

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: