Full Stack Software Engineer, Financial Systems

724 Givex Mexico S.A. de C.V.; Center Valley (Lehigh County); On-site; USD 110,000 - 150,000; Full time

Job summary

Shift4 is seeking a Full Stack Software Engineer to join the Financial Systems Experience team. You will design, build, and support full stack applications, back-end services, and data pipelines that power finance and billing workflows.

You will collaborate with data teams, QA, and business stakeholders to ensure accurate financial outputs and scalable solutions, while adhering to SDLC, testing, and deployment best practices.

Qualifications

• 3+ years of professional software engineering experience.
• Experience with backend development in .NET, C#, VB.NET, Java, Python, Node.js, or similar languages.
• Strong SQL experience, preferably with Microsoft SQL Server, including stored procedures and data validation.
• Experience building or supporting data pipelines, ETL/ELT processes, or large-scale data workflows.
• Experience developing or reviewing front-end applications using React, TypeScript, JavaScript, HTML, CSS.
• Understanding of SDLC practices, Git-based development, code review, testing, deployment, and production support.
• Demonstrated ability to troubleshoot complex application and data issues independently.
• Strong communication skills to explain technical concepts to finance, operations, and non-technical stakeholders.

Responsibilities

• Design, develop, test, deploy, and support full stack applications for Shift4’s Financial Systems team.
• Build and maintain backend services, database logic, and integrations supporting financial workflows.
• Develop and optimize SQL, data pipelines, reporting datasets, and data validation routines for high-volume data.
• Partner with front-end engineers to review architecture, UI behavior, and data contracts.
• Contribute to front-end development and support billing, payments, and internal platforms.
• Diagnose and resolve production issues involving data quality, performance, and financial output.
• Create documentation covering data models, processes, and integration logic.
• Improve standards around testing, observability, and deployment readiness.

Skills

C#

VB.NET

Java

Python

Node.js

SQL

React

TypeScript

JavaScript

HTML

CSS

Tools

Microsoft SQL Server

Git

Job description

Shift4 (NYSE: FOUR) is boldly redefining commerce by simplifying complex payments ecosystems across the world. As the leader in commerce-enabling technology, Shift4 powers billions of transactions annually for hundreds of thousands of businesses in virtually every industry. For more information, visit www.shift4.com. Shift4 is looking for a Full Stack Software Engineer to join the Financial Systems Experience team. This role will design, build, support, and improve critical applications, integrations, reporting workflows, and data-driven tools used across Finance, Accounting, FinOps, Revenue Operations, and related business teams. This is a full stack engineering role with a heavy data engineering focus.

Responsibilities

Design, develop, test, deploy, and support full stack applications for Shift4’s Financial Systems team. Build and maintain backend services, database logic, and integrations that support financial operations workflows. Develop and optimize SQL, stored procedures, data pipelines, reporting datasets, and data validation routines for high-volume financial data. Partner with front-end engineers to review application architecture, code quality, UI behavior, data contracts, and integration patterns. Contribute to front-end development. Support systems and workflows related to billing, payments, and other internal financial platforms. Diagnose and resolve production issues involving application behavior, data quality, integrations, performance, and financial output accuracy. Build solutions that are scalable, secure, auditable, and maintainable in a financial systems environment. Collaborate with business analysts, QA, TPMs, finance stakeholders, data teams, and other engineering groups to translate complex business requirements into reliable technical solutions. Create clear technical documentation, including data models, process flows, integration logic, validation rules, and support notes. Improve engineering standards around testing, code review, observability, deployment readiness, and data quality controls. Identify opportunities to automate manual financial operations processes and reduce recurring support or reporting burden. Use AI-assisted development and automation tools responsibly to improve productivity, testing, troubleshooting, and documentation quality.

Minimum Qualifications

3+ years of professional software engineering experience. Experience with backend development in .NET, C#, VB.NET, Java, Python, Node.js, or similar languages. Strong SQL experience, preferably with Microsoft SQL Server, including stored procedures, query optimization, data validation, and troubleshooting. Experience building or supporting data pipelines, ETL/ELT processes, reporting datasets, or large-scale operational data workflows. Experience developing or reviewing front-end applications using React, TypeScript, JavaScript, HTML, CSS, or similar technologies. Understanding of SDLC practices, Git-based development, code review, testing, deployment, and production support. Demonstrated ability to troubleshoot complex application and data issues independently. Strong communication skills, including the ability to explain technical concepts to finance, operations, and non-technical stakeholders. Experience writing clear documentation for code, data flows, system behavior, and operational support. Ability to work in an agile environment and manage work across multiple business-critical priorities.

Preferred Qualifications

Experience with financial systems, fintech, payments, billing, residuals, revenue operations, accounting operations, or ERP platforms. Strong understanding of financial data quality, audit controls, compliance-sensitive workflows, and reconciliation processes. Experience modernizing legacy applications, SQL-heavy systems, or manual finance operations workflows. Experience supporting month‑end close, billing cycles, merchant reporting, pricing logic, fee configuration, or financial reporting. Experience mentoring engineers or serving as a senior technical reviewer for application and data engineering work. Experience with observability, logging, alerting, performance tuning, and production incident response. Payments, restaurant technology, POS, merchant acquiring, or revenue operations experience is a plus.

What Success Looks Like

Financial systems applications are more reliable, maintainable, and easier to support. Critical financial data flows are accurate, documented, validated, and scalable. Front‑end work has stronger technical review, cleaner integration patterns, and better long‑term maintainability. Business stakeholders get solutions that reduce manual work, improve visibility, and support accurate financial outcomes. The team raises its engineering standards without slowing delivery.

We are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, color, sex, age, national origin, religion, sexual orientation, gender identity and/or expression, status as a veteran, and basis of disability or any other federal, state or local protected class.

WELCOME TO THE FUTURE OF COMMERCE

Shift4 (NYSE: FOUR) powers the experience economy, enabling businesses to deliver the moments that matter. Transforming how people shop, dine, stay, and play, Shift4’s commerce technology allows for a seamless experience at any scale. From your neighborhood restaurant to the world’s largest event venues, Shift4 handles billions of transactions annually for hundreds of thousands of businesses around the world. For more information, visit shift4.com.

About Global Blue

Global Blue by Shift4 is the industry leader in Tax Free Shopping solutions, simplifying the tax refund process for international travelers and driving revenue for retailers through a fully integrated commerce experience. As a business partner for the shopping journey, we seamlessly connect shoppers and brands worldwide, powering over 40 million transactions each year. For more information, please visit globalblue.com and shift4.com.

A Global Leader in Financial Technology

75+ Countries $300+ Billion Processed Annually 300,000+ Customers 1,200+ Technology Integrations 5+ Billion Annual Transactions 100+ Payment Methods Shift4's experienced senior leadership team helps us push the boundaries of commerce innovation.

Meet the Executive Team

Shift4Cares We take corporate social responsibility seriously and strive to make a positive impact on the world around us. The Shift4 team is committed to making a difference in our local communities through volunteerism and other charitable contributions.

Join Our Team

Our people are our greatest asset, and we’re always looking for driven and innovative individuals to join our fast-growing team.