Principal Software Engineer

ACI Worldwide

Principal Software Engineer defining technical vision and architecture for major initiatives across multiple teams. Leading engineering excellence and influencing product roadmap with technical insights.

Posted 7/23/2026full-timeOmaha • New York • 🇺🇸 United StatesLeadWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in software architecture and large-scale system design, with a strong focus on distributed systems, microservices, and cloud architectures. Proven ability to lead technical initiatives, mentor teams, and drive engineering best practices while aligning technical decisions with business outcomes.

Highest-signal resume keywords

Software ArchitectureLarge-Scale System DesignDistributed SystemsAI/ML IntegrationTechnical Leadership

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Software EngineeringSystem ReliabilityPerformance OptimizationMicroservicesCloud ArchitecturesSecurity ArchitectureTechnical VisionEngineering StandardsTechnical EscalationEmerging Technologies

Soft Skills

Exceptional CommunicationCross-Team InfluenceStakeholder ManagementStrategic ThinkingMentoring

Certifications & Qualifications

Bachelor's Degree in Computer ScienceMaster's Degree Preferred

Industry Keywords

PaymentsFinancial ServicesRegulated Industry

Tech Stack

Tools & technologies

CloudDistributed SystemsMicroservices

About the role

Key responsibilities & impact

Define technical vision and architecture for major cross-team initiatives
Lead design reviews and set engineering standards across multiple teams
Influence product roadmap with technical insights and innovation opportunities
Evaluate and adopt new technologies including AI/ML to improve engineering productivity
Identify and resolve complex technical challenges that span multiple systems
Drive technical excellence and best practices across engineering organization
Serve as technical escalation point for critical issues and architectural decisions
Lead architecture reviews and provide guidance on system design
Represent engineering in cross-organizational initiatives and strategic planning
Mentor senior engineers and technical leads across teams
Drive adoption of engineering best practices and architectural patterns
Build strategic technical relationships with partners and stakeholders

Requirements

What you’ll need

Bachelor's degree in Computer Science or related field; Master's preferred
Equivalent experience (10+ years) may substitute for degree
8-12 years of software engineering with demonstrated technical leadership
Proven track record of delivering complex, large-scale software systems
Experience leading technical initiatives across multiple teams
Strong influence on technical direction and engineering culture
Payments, financial services, or regulated industry experience preferred
Expert software architect with large-scale system design experience
Deep expertise across multiple technical domains and technology stacks
Advanced knowledge of distributed systems, microservices, and cloud architectures
Experience with performance optimization at scale and system reliability
Strong understanding of security architecture and compliance requirements
Proficiency in evaluating and adopting emerging technologies including AI/ML
Talented in AI tool adoption and integrating AI capabilities across systems
Exceptional written and verbal communication skills
Strong cross-team influence and stakeholder management
Strategic thinking with ability to connect technical decisions to business outcomes
Leadership through influence without direct authority

Benefits

Comp & perks

10-15% travel for conferences, strategic meetings, and cross-site collaboration
On-call escalation participation; flexible hours for global collaboration