Full-Time

Senior Developer

PHP

Posted on 8/14/2025

Fullsteam

Fullsteam

501-1,000 employees

Vertical SaaS holding company embedding payments

No salary listed

Remote in USA

Remote

Category
Software Engineering (1)
Required Skills
PHP
JavaScript
SQL
Docker
AWS
AngularJS
Requirements
  • Solid experience building and maintaining PHP applications in a production environment.
  • Familiarity with microframeworks such as SLIM is a plus.
  • Proficient in writing efficient SQL queries and working with relational databases to support data-driven features.
  • Experience with JavaScript and front-end development; prior use of AngularJS is preferred.
  • Understanding of responsive design principles and UI performance considerations.
  • Exposure to Docker-based development workflows.
  • Understanding of common application security concepts and best practices.
  • Experience working within cloud environments (preferably AWS) is strongly preferred.
  • Comfortable working in a fully remote team with asynchronous communication.
  • Able to collaborate effectively with developers, product managers, and other stakeholders to deliver solutions.
  • Strong attention to detail with a focus on writing clean, readable, and testable code.
Responsibilities
  • Develop an in-depth understanding of the existing application.
  • Work on assigned tasks including feature development, bug fixes, code modernization, and UI improvements.
  • Collaborate with senior developers and the product team to understand requirements and implement solutions.
  • Learn the structure of the existing application and contribute to improving its performance, stability, and security.
  • Participate in code reviews and help maintain code quality standards.
  • Support improvements to legacy code based on guidance from technical leads.
  • Follow internal processes for security, testing, and deployment.
Desired Qualifications
  • 3+ years of professional experience developing PHP-based web applications.
  • Experience writing SQL for relational databases (e.g., MySQL, PostgreSQL, etc.).
  • Familiarity with JavaScript; AngularJS experience is preferred but not required.
  • Experience working in a remote development team.

Fullsteam buys founder-led vertical SaaS businesses and embeds its cloud-first payments platform into their software. After acquisition, payments processing like recurring payments, EMV, ACH, mobile payments, and automated reconciliation is built into the product, creating a single branded system for both business management and payments. The firm scales by growing its portfolio (over 75 software companies) through acquisitions and using its payments infrastructure across verticals, supported by investors such as Aquiline Capital Partners, Sixth Street, and the Abu Dhabi Investment Authority. Its goal is to improve profitability and speed growth for SMBs by delivering a unified payments ecosystem within each portfolio company across sectors like healthcare, field services, automotive, specialty retail, and association management.

Company Size

501-1,000

Company Stage

N/A

Total Funding

N/A

Headquarters

Auburn, Alabama

Founded

2018

Simplify Jobs

Simplify's Take

What believers are saying

  • ADIA joins Aquiline as minority investor to accelerate software acquisitions.
  • Hired Dirk Izzo as President to bolster payments and operations leadership.
  • Acquired Limo Anywhere, expanding into ground transportation synergies.

What critics are saying

  • Post-acquisition integrations fail, causing Limo Anywhere churn in 6-12 months.
  • Stripe captures SMB payments in healthcare via superior APIs in 12-24 months.
  • CFPB rules fine automotive gateways, forcing compliance retrofits in 6-12 months.

What makes Fullsteam unique

  • Fullsteam acquires vertical SaaS firms and embeds proprietary cloud-first payments platform.
  • Portfolio exceeds 75 companies across healthcare, automotive, and field services sectors.
  • Founded in 2018 by Michael Lawler, integrates payments with AI, marketing, and insurance.

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Benefits

Hybrid Work Options

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

5%

2 year growth

3%
PYMNTS
May 2nd, 2024
Worldpay Launches Tap-To-Pay Offering For Merchants

Payment facilitators (PayFacs) using Worldpay’s services can now offer their merchants tap-to-pay on iPhone.The payments technology firm said in a Thursday (May 2) press release that two of its PayFac partners — Fullsteam and Autobooks — have already launched the service, which allows merchants to use an iPhone to securely accept contactless payments.“Many businesses are mobile, and if we can utilize existing business tools like iPhone as an untethered POS acceptance device, we are making their lives easier,” Fullsteam CEO Michael Lawler said in a news release. “With tap-to-pay on iPhone, those businesses can capitalize on the powerful technology already in a device that’s likely in their pocket. Fullsteam’s integration with Worldpay has made it easier to offer this advanced experience to our clients and their customers.”PayFac partners that want to offer tap-to-pay on iPhone can work with Worldpay to integrate its triPOS mobile toolkit into their point-of-sale app, according to the release. After integration, merchants using the app can accept all forms of contactless payments by using an iPhone to conduct the transaction.Tap-to-pay uses the built-in features of the iPhone to keep the merchant and customer data private and secure, per the release.“When a payment is processed, Apple doesn’t store card numbers or transaction information on the device or on Apple servers,” the release said.The launch comes amid increased digital wallet use among consumers.“Digital wallets can [provide] features intended to make the lives of users easier, such as the ability to store important documents like driver’s licenses, passports and event tickets.”However, PYMNTS Intelligence’s “Tracking the Digital Payments Takeover: Can New Use Cases Drive Consumer Use of Digital Wallets?” found that the enthusiasm for using digital wallets as a place for sensitive documents changes depending on who is asked.Although 51% of U.S. consumers, in general, expressed at least some interest in using digital wallet storage features, 78% of baby boomers and seniors said they had only a slight interest or no interest in storing documents on their devices.The excitement about using digital wallets to safeguard documents grows when younger consumers weigh in, as 49% of Generation Z consumers and 51% of millennials said they are extremely interested, while 46% of bridge millennials and 26% of Generation X consumers also showed the same level of interest in using special digital wallet features

EPASS Software
Jul 28th, 2023
NewsUser Meeting 2023 EPASS User Meeting 2023: July update

As announced earlier this year, EPASS has teamed up with Fullsteam—a leading software, technology, and payment services provider.

PEI Group
May 25th, 2023
Aquiline Capital and ADIA back software firm Fullsteam | PE Hub

Aquiline will remain as the lead investor in Fullsteam and ADIA will become a significant minority investor.

Limo Anywhere
Oct 13th, 2022
Exciting Announcement: Limo Anywhere, and all accompanying assets, acquired by Fullsteam. - Limo Anywhere

With great pleasure and excitement, we announce that Limo Anywhere has been acquired by Fullsteam, a portfolio company of a private equity fund with significant assets under management. With 60+ companies within the Fullsteam portfolio, Limo Anywhere will take advantage of new strategic synergies and shared resources never before seen in our company’s history. Fullsteam’s main […]

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