Demo

Lead Software Engineer-Payments

UST
Englewood, CO Full Time
POSTED ON 11/8/2025
AVAILABLE BEFORE 12/8/2025
Role Description

Who We Are:

Born digital, UST transforms lives through the power of technology. We walk alongside our clients and partners, embedding innovation and agility into everything they do. We help them create transformative experiences and human-centered solutions for a better world.

UST is a mission-driven group of 29,000 practical problem solvers and creative thinkers in more than 30 countries. Our entrepreneurial teams are empowered to innovate, act nimbly, and create a lasting and sustainable impact for our clients, their customers, and the communities in which we live.

With us, you’ll create a boundless impact that transforms your career—and the lives of people across the world.

Visit us at UST.com.

You Are

As the Lead Software Engineer, you are experienced in payment system modernization. You are a leader who ensures the seamless integration of the payment processing solutions via configuration, focusing on efficiency, reliability, and security with the 3rd party product/application. As the Lead Software Engineer you are a strong team leader, motivating team members to exceed client expectations.

The Opportunity

  • Manage technical dependencies and interface specifications across multiple teams.
  • Design, develop, and oversee integration workflows between internal systems, payment gateways, processors, and external partners.
  • Payment System Integration: Lead the integration of payment routing engines into our systems, ensuring compatibility with various payment gateways, processors, and financial institutions.
  • Technical Analysis: Conduct thorough technical analysis of existing systems and infrastructure to identify integration points and potential challenges.
  • API Integration: Design and implement APIs to facilitate communication between our applications and the payment acquirers ensuring smooth data exchange.
  • Configuration and Customization: Configure and customize payment routing parameters based on business requirements, ensuring optimal transaction flow and routing decisions.
  • Testing and Quality Assurance: Collaborate with QA teams to develop and execute test plans, ensuring the reliability and accuracy of payment transactions.
  • Troubleshooting: Investigate and resolve integration issues, providing timely and effective solutions to minimize downtime and disruptions.
  • Performance Optimization: Optimize the performance of payment routing processes, identifying and addressing bottlenecks to enhance overall system efficiency.
  • Documentation: Create comprehensive documentation for integration processes, configurations, and troubleshooting procedures.

What You Need

  • At least 8 years of experience in software engineering and working in payment processing project
  • Hands-on experience in Go Template and JQ programming language.
  • Strong understanding of APIs and data interchange formats (JSON, XML) with expertise in API integration, middleware platform
  • Hands on experience in scripting languages like Python.
  • Good understanding of OOPs concepts and programming
  • Familiarity with security standards and compliance in payment industry
  • Experience in integrating payment routing engines and payment protocols
  • Strong problem-solving and troubleshooting skills.
  • Excellent leadership, communication, and stakeholder management abilities.

Good To Have

  • Experience in GO language
  • Familiarity with cloud platforms (AWS/Google/Azure)
  • Experience in payment routing engines
  • Database knowledge (Oracle/MongoDB/SQL)
  • Java, SpringBoot

Compensation can differ depending on factors including but not limited to the specific office location, role, skill set, education, and level of experience. UST provides a reasonable range of compensation for roles that may be hired in various U.S. markets as set forth below.

Role Location: Englewood, CO

Compensation Range: $128,000-$185,000

Benefits

Full-time, regular employees accrue a minimum of 10 days of paid vacation per year, receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year), 10 paid holidays, and are eligible for paid bereavement leave and jury duty. They are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance, as well as the following Company-paid Employee Only benefits: basic life insurance, accidental death and disability insurance, and short- and long-term disability benefits. Regular employees may purchase additional voluntary short-term disability benefits, and participate in a Health Savings Account (HSA) as well as a Flexible Spending Account (FSA) for healthcare, dependent child care, and/or commuting expenses as allowable under IRS guidelines. Benefits offerings vary in Puerto Rico.

Part-time employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year) and are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching.

Full-time temporary employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year) and are eligible to participate in the Company’s 401(k) program with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance.

Part-time temporary employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year).

All US employees who work in a state or locality with more generous paid sick leave benefits than specified here will receive the benefit of those sick leave laws.

What We Believe

We proudly embrace the values that have shaped UST since day one. We build our culture of Humility, Humanity, and Integrity. These values inspire us to nurture a people-first, human centric culture that fosters belonging, prioritizes sustainable solutions, and keeps our people and clients at the forefront of all decisions.

Humility

We will listen, learn, be empathetic and help selflessly in our interactions with everyone.

Humanity

Through business, we will better the lives of those less fortunate than ourselves.

Integrity

We honor our commitments and act with responsibility in all our relationships.

Equal Employment Opportunity Statement

UST is an Equal Opportunity Employer.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other applicable characteristics protected by law. We will consider qualified applicants with arrest or conviction records in accordance with state and local laws and “fair chance” ordinances.

UST reserves the right to periodically redefine your roles and responsibilities based on the requirements of the organization and/or your performance.

#UST

#uststat

Skills

system intergration specialist,go,python

Salary : $128,000 - $185,000

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