Staff Software Engineer, Payments (Keystone AI, Inc., Lehi, UT)

Design, develop, and enhance RESTful and event-driven APIs supporting high-volume payment,
reconciliation, and reporting workflows, following secure, versioned, and contract-first interface practices.
Develop and improve reconciliation and settlement pipelines to increase observability, throughput, and
operational resilience across ACH, card, and check processing systems. Define and enforce architecture
standards and coding practices across teams, ensuring consistent application of secure, scalable, and
maintainable design patterns. Contribute to foundational system architecture and provide technical
guidance to distributed engineering teams through code reviews, documentation, and knowledge sharing.
Collaborate with Product, UX, and Engineering teams to analyze business requirements and implement
scalable, compliant technical solutions. Evaluate technical trade-offs among delivery timelines,
implementation complexity, and long-term scalability when designing and implementing software
components. Implement monitoring, logging, and testing mechanisms to support platform reliability,
observability, and release readiness. Improve software development workflows by identifying and
addressing inefficiencies in CI/CD pipelines, build processes, and infrastructure automation. Forecast
system scaling limits and architectural risks, leading multi-year modernization initiatives, including service
decomposition, modularization, and cloud-native adoption. Select and standardize technology stacks and
architecture patterns, ensuring alignment with security, compliance, performance, and platform
guidelines. Collaborate with internal stakeholders and external partners, resolving technical issues related
to system integrations, payment networks, and platform interoperability. Provide technical input to
customers or internal departments regarding software functionality, system design considerations, and
ongoing maintenance activities. Up to 10% domestic travel required to collaborate with Engineering
Managers and Engineers on quarterly focus areas and to participate in hackathons. Telecommuting may
be permitted up to 2 days per week. When not telecommuting, must report to Keystone AI Inc., 4205 Chapel
Ridge Road, Lehi, UT 84048. Salary: $158,400 - $256,500 per year.

MINIMUM REQUIREMENTS: Bachelor’s Degree or U.S. equivalent in Computer Science, Computer
Engineering, Computer Information Systems, BioTechnology, Information Technology, or related field,
plus 7 years of professional experience as a Software Engineer, Systems Engineer, or any
occupation/position/job title performing coding and fullstack software engineering.

Must also have experience in the following: 7 years of professional experience building image-based
check processing platforms using high-volume capture and Check 21-compliant ICL generation, ensuring
auditable workflows for MICR extraction, image quality validation, and downstream clearing and
settlement; 7 years of professional experience designing and operating ACH systems with deep expertise
in NACHA file formats, settlement windows, and return/reversal workflows, building automated origination,
validation, reconciliation, and reporting pipelines for high-volume, compliant payment environments; 7
years of professional experience delivering secure, high-availability card platforms across Visa,
Mastercard, AmEx, and Discover, leading tokenization, and building PCI-compliant platforms; 7 years of
professional experience designing secure systems using encryption, access controls, and dataminimization practices to protect sensitive customer data and meet internal security and privacy
regulations; 7 years of professional experience applying U.S. and international payments expertise to
identify architectural risk, guide long-term platform modernization, and influence technical strategy with
product and engineering leadership; 7 years of professional experience designing and scaling secure,
high performance backend platforms for transactional and payment systems; 7 years of professional
experience architecting resilient, cloud-native systems using autoscaling, multi-region design, and eventdriven patterns to ensure high availability and fault tolerance for mission-critical platforms; 7 years of
professional experience architecting distributed enterprise systems using DDD, CQRS, and
asynchronous messaging, integrating third-party payment services through secure, idempotent, and
highly available APIs; 7 years of professional experience building high-throughput, resilient architectures
using RabbitMQ to orchestrate distributed, asynchronous workflows across payment and data platforms;
7 years of professional experience designing and operating CI/CD pipelines that automate testing,
security checks, and cloud deployments for fast, reliable, and compliant software delivery; and 7 years of
professional experience designing high-performance, ACID-compliant databases, batch pipelines, and
data integration and reporting solutions (including SSIS and SSRS), optimizing queries, indexing, and
analytical workflows using CTEs, window functions, views, stored procedures, and observability tooling.

CONTACT: Apply online at https://www.entrata.com/careers