Senior IBM i Technical Architect

About Persistent

We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what's next. Our offerings and proven solutions create a unique competitive advantage for our clients by giving them the power to see beyond and rise above. We work with many industry-leading organizations across the world, including 18 of the Fortune 50 companies, 7 of the 10 top US banks, 9 of the 10 technology companies, and numerous innovators across the healthcare ecosystem.

Our disruptor's mindset, commitment to client success, and agility to thrive in the dynamic environment have enabled us to sustain our growth momentum. Persistent has been recognized across top industry platforms for innovation, leadership, and inclusion. We have delivered 26 sequential quarters of growth with $487.6M in Q4 FY26 revenue, up 7.8% Q-o-Q and 20.0% Y-o-Y. Our 29,500+ global team members, located in 21 countries, have been instrumental in helping the market leaders transform their industries. We received five awards at the ISG (Information Services Group) Provider Lens Awards 2026 and, for the second year in a row, were awarded the Growth Honor of the Year at the Everest Group Elevate 2026.

About Position:

We are seeking an experienced Senior IBM i / iSeries Technical Architect to support a long-term enterprise production support and application development engagement. This is a hands-on architecture role requiring deep expertise in IBM i (AS/400), RPG development, and enterprise application modernization. The architect will serve as the primary technical interface for client stakeholders while collaborating closely with offshore engineering teams. The ideal candidate will be responsible for solution architecture, impact assessment, production support, modernization planning, integration strategy, and technical leadership across a large and complex IBM i application landscape.

• Role: Senior IBM i / iSeries Technical Architect
• Location: Philadelphia, PA
• Experience: 12 to 16 Years
• Job Type: Full-Time Employment

What You'll Do:

• Analyze, design, and architect solutions within a large-scale IBM i / iSeries application environment.
• Create high-level solution architectures and detailed technical design documents.
• Assess the impact of business and technical changes across RPG applications, DB2 databases, interfaces, and downstream systems.
• Provide architectural direction and technical leadership for application enhancements, maintenance, and modernization initiatives.
• Design scalable and maintainable solutions while ensuring alignment with business and operational requirements.
• Drive modernization initiatives by identifying opportunities to enhance legacy applications while preserving business-critical functionality.
• Design and support API-led integration patterns for IBM i applications and external enterprise systems.
• Collaborate with client stakeholders, business users, architects, and engineering teams to define technical roadmaps and priorities.
• Identify and remediate technical debt, performance bottlenecks, security gaps, and maintainability issues.
• Support troubleshooting and root-cause analysis of complex production incidents and application issues.
• Guide development teams on architecture standards, coding practices, solution design, and implementation approaches.
• Review technical deliverables and provide architectural governance across projects and support initiatives.
• Balance modernization objectives with the stability requirements of a mission-critical production environment.

Expertise You'll Bring:

• 12-16 years of experience in IBM i / iSeries application development, architecture, and enterprise support environments.
• Strong hands-on expertise in IBM i architecture, RPG III, RPG IV, RPGLE, Free Format RPG, CL, and DB2 for IBM i.
• Proven experience architecting and supporting large-scale IBM i-based enterprise applications.
• Strong understanding of application modernization strategies for legacy IBM i environments.
• Experience designing and implementing enterprise integration solutions involving IBM i platforms.
• Expertise in application impact analysis, performance tuning, troubleshooting, and solution optimization.
• Strong knowledge of DB2 database design, SQL, database optimization, and data access patterns.
• Experience designing REST and SOAP API integrations for legacy and modern application environments.
• Ability to lead technical discussions with senior client stakeholders and business users.
• Strong analytical, problem-solving, and decision-making capabilities.
• Experience managing technical dependencies across complex application portfolios.
• Excellent communication, presentation, and stakeholder management skills.
• Ability to mentor development teams and provide technical leadership across distributed delivery models.

Benefits:

• Competitive salary and benefits package
• Culture focused on talent development with quarterly growth opportunities and company-sponsored higher education and certifications
• Opportunity to work with cutting-edge technologies
• Employee engagement initiatives such as project parties, flexible work hours, and Long Service awards
• Annual health check-ups
• Insurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents

Values-Driven, People-Centric & Inclusive Work Environment:

Persistent is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.

• We support hybrid work and flexible hours to fit diverse lifestyles.
• Our office is accessibility-friendly, with ergonomic setups and assistive technologies to support employees with physical disabilities.
• If you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment

Let's unleash your full potential at Persistent -persistent.com/careers

"Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind."