SR Full Stack Engineer II

Paymentus leads the North American marketplace in electronic bill payment solutions and is looking for high performers to join our development team building SaaS Fintech solutions across a range of industries. You will contribute to a massively scalable data platform, that is built on top of a world class enterprise platform, supporting thousands of clients and into the millions of transactions daily.

Paymentus' success and rapid growth provides employees with opportunities for career advancement.

You’re a self driven Sr. Full Stack Engineer seeking to understand and transform requirements into core features of an evolving payment platform, who collaborates with expert team members to enhance user experience within the payment space, and who enjoys writing great code! You challenge yourself to go beyond the original request and solve the root problem, build test‑driven code, embrace new technologies, and innovate.

Essential Functions/Responsibilities

Collaborate with cross‑functional teams in an agile environment

Working with talented developers from diverse backgrounds, continually learning, and applying best practices to development

Mentoring the more junior developers

Gathering and clarifying requirements from the business team. Planning, designing, and developing enhancements to the existing application

Applying good enterprise development practices, developing and executing comprehensive test suites to ensure high quality of the deliverables

Extensively profiling and deeply analyzing product using performance and debugging tools

Education and Experience

Undergraduate degree in Computer Science or related field

Strong knowledge of OOP principles with 4‑7+ years of experience with Java development or other object‑oriented programming languages

Familiar with HTTP protocol and RESTful APIs

Experience with server‑side scalability and performance

Familiar with information architecture structure and design

Experience in Agile/SCRUM methodologies for software development

4‑7+ years of commercial software development experience in Java

4‑7+ years experience with J2EE frameworks such as Springboot, Spring MVC

3+ years database experience (Oracle 11g, PL/SQL, Mongo

DB)

Working understanding of relational database and No

SQL database concepts

Salary Range: $110k-$140k

Nice to Have

js / Express.js middleware to build microservices

Experience with one or more UI frameworks:
React, Angular, Vue

Testing frameworks including Selenium, JUnit, Mocha, Jest

Cloud technologies such as AWS, GCP, Azure

GIT, or similar distributed source control with Mercurial, Subversion, etc.

Familiarity with Linux or BSD

This job operates in a professional office environment. This role routinely uses standard office equipment such as laptop computers, photocopiers and smartphones.

Physical Demands
This role requires sitting or standing at a computer workstation.

Position Type/Expected Hours of Work
This is a full‑time position. Days and hours of work are Monday through Friday, 40 hours a week. Occasional evening and weekend work may be required as job duties demand.

Travel
No travel required for this role.

EEO Statement
Paymentus is an equal opportunity employer. We enthusiastically accept our responsibility to make employment decisions without regard to race, religious creed, color, age, sex, sexual orientation, national origin, ancestry, citizenship status, religion, marital status, disability, military service or veteran status, genetic information, medical condition including medical characteristics, or any other classification protected by applicable federal, state, and local laws and ordinances.

Our management is dedicated to ensuring the fulfillment of this policy with respect to hiring, placement, promotion, transfer, demotion, layoff, termination, recruitment advertising, pay, and other forms of compensation, training, and general treatment during employment.

Reasonable Accommodation
Paymentus recognizes and supports its obligation to endeavor to accommodate job applicants and employees with known physical or mental disabilities who are able to perform the essential functions of the position, with or without reasonable accommodation. Paymentus will endeavor to provide reasonable accommodations to otherwise qualified job applicants and employees with known physical or mental disabilities, unless doing so would impose an undue hardship on the Company or pose a direct threat of substantial harm to the employee or others.

An applicant or employee who believes he or she needs a reasonable accommodation of a disability should discuss the need for possible accommodation with the Human Resources Department, or his or her direct supervisor.

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