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Waystar

Senior Software Engineer II

LocationAtlanta, GA
Typefull-time
SenioritySenior
Experience5+ yrs
Company size1,001–5,000 people
PostedSep 18, 2026 · 3w ago
Verified live8h ago
At a glanceSummarised by Seekless from the posting.
Must have9
5+ years of professional full stack web development experience
Object-oriented programming (mostly PHP)
Relational databases (MySql)
Modern JavaScript frameworks such as Angular, React, or Vue (we use Vue)
JavaScript, HTML, CSS, and/or MVC Frameworks
Unit and integration testing methodologies
Distributed system architecture and asynchronous processing using queues (AWS SQS)
Automated production logging, monitoring and alerting
Agile development
Nice to have4
Bachelor's Degree in Computer Science or related field preferred (or equivalent experience)
Experience scaling real-time high availability APIs
Experience integrating with payment gateways and processors (Stripe, Elavon, Authorize.Net, NMI, USAePay, WorldPay, TSYS, etc)
Experience with finance and banking processes and concepts (merchant accounts, ACH, settlement, etc)
Skills
JavaScript
HTML
CSS
PHP
SQL
MySql
Angular
React
Vue
AWS SQS
Stripe
Elavon
Authorize.Net
NMI
USAePay
WorldPay
TSYS
Benefits
Health insurance
401(k)
Paid time off
Paid holidays
Paid parental leave
Education assistance
Mental health programs
Pet insurance
ABOUT THIS POSITION
As a Senior Software Engineer in the Patient Payments organization at Waystar, you will solve problems that affect real people. You should care deeply about how your users interact with your application and how other engineers will iterate on your code. You should also be passionate about using modern technologies, removing tech debt, and improving processes. Instead of asking “Why is this the way it is?”, you ask “How can I make this better?”
The team is responsible for building full stack applications for both health system staff and patients. The team works closely with Product to bring new features to market to best support the needs of enterprise health systems and engage with patients through a Best in KLAS user experience. The web portals utilize modern web technologies to facilitate payment processing, account management and reporting.
WHAT YOU’LL DO
•
You will join a team of full stack engineers to build new features for our web applications, as well as support and maintain them
•
You should expect to move up and down the software stack, writing client-side JavaScript, HTML, and CSS, server-side PHP and the SQL statements for the products you release
•
Collaborate with Product, UX and other engineering teams to solve difficult problems and design new features
•
Scope out technical designs that enable your team to execute on proposed solutions
•
Upgrade legacy apps and code to modern frameworks and technologies
•
Mentor junior engineers and promote a culture of learning and teaching
•
Actively lead technical roadmap for the team
•
Embrace an agile development process that emphasizes test automation, code reviews, and fast release cycles
•
Be a communicator! Have opinions and the ability to justify them - we want to know what you think
WHAT YOU’LL NEED
•
Bachelor’s Degree in Computer Science or related field preferred (or equivalent experience)
•
5+ years of professional full stack web development experience
•
Object-oriented programming (we’re mostly PHP)
•
Relational databases (we use MySql)
•
Modern JavaScript frameworks such as Angular, React, or Vue (we use Vue)
•
JavaScript, HTML, CSS, and/or MVC Frameworks
•
Unit and integration testing methodologies
•
Distributed system architecture and asynchronous processing using queues (AWS SQS)
•
Automated production logging, monitoring and alerting
•
Agile development
Preferred Skills:
•
Experience scaling real-time high availability APIs
•
Experience integrating with payment gateways and processors (Stripe, Elavon, Authorize.Net, NMI, USAePay, WorldPay, TSYS, etc)
•
Experience with finance and banking processes and concepts (merchant accounts, ACH, settlement, etc)
ABOUT WAYSTAR
Through a smart platform and better experience, Waystar helps providers simplify healthcare payments and yield powerful results throughout the complete revenue cycle.
Waystar’s healthcare payments platform combines innovative, cloud-based technology, robust data, and unparalleled client support to streamline workflows and improve financials so providers can focus on what matters most: their patients and communities. Waystar is trusted by 1M+ providers, 1K+ hospitals and health systems, and is connected to over 5K commercial and Medicaid/Medicare payers. We are deeply committed to living out our organizational values: honesty; kindness; passion; curiosity; fanatical focus; best work, always; making it happen; and joyful, optimistic & fun.
Waystar products have won multiple Best in KLAS® or Category Leader awards since 2010 and earned multiple #1 rankings from Black Book™ surveys since 2012. The Waystar platform supports more than 500,000 providers, 1,000 health systems and hospitals, and 5,000 payers and health plans. For more information, visit waystar.com or follow @Waystar on Twitter.
WAYSTAR PERKS
•
Competitive total rewards (base salary + bonus, if applicable)
•
Customizable benefits package (3 medical plans with Health Saving Account company match)
•
We offer generous paid time off for our non-exempt team members, starting with 3 weeks + 13 paid holidays, including 2 personal floating holidays. We also offer flexible time off for our exempt team members + 13 paid holidays
•
Paid parental leave (including maternity + paternity leave)
•
Education assistance opportunities and free LinkedIn Learning access
•
Free mental health and family planning programs, including adoption assistance and fertility support
•
401(K) program with company match
•
Pet insurance
•
Employee resource groups
Legal
Waystar is proud to be an equal opportunity workplace. We celebrate, value, and support diversity and inclusion. Qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, marital status, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.
This applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.
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