About airSlate
airSlate is a global SaaS technology company that develops no-code workflow automation, electronic signature, and document management solutions. Our award-winning products - SignNow, pdfFiller, DocHub, altaFlow, Instapage, and US Legal Forms - serve over hundreds of millions of users and more than one million customers worldwide, helping organizations of every size digitize processes, improve efficiency, and transform how they work.
We’re in an exciting phase of growth and transformation, with teammates in more than 20 countries across three continents and main hubs in the United States, Poland, Romania, Ukraine and Philippines.
At airSlate, we’re building value for customers and a culture where growth and innovation go hand in hand. We’re looking for people eager to shape products, scale a company, and thrive in a fast-moving environment.
And now, we are looking for a Senior PHP Developer who is prepared to contribute to the next chapter of our company's growth.
The person will join the Payments Systems core team and take on the responsibility of integrating new payment gateways, running experiments, and maintaining the systems that power our users' payment experience while ensuring seamless and secure transactions.
As Senior PHP Developer, you will design and implement payment experiments, integrate new gateways, and optimize existing systems — with direct impact on the payment experience for millions of users.
What you'll be working on:
Maintain and evolve the large codebase that powers our billing and payments service
Integrate with external billing-related services and connect new payment gateways
Solve production payment issues and keep the system reliable and secure
Design and review software architecture for new payments features
Implement hypotheses and run experiments to move core business metrics
Write tests and contribute to a well-covered, high-quality codebase
Analyze relevant metrics to inform decisions and validate experiment outcomes
What we expect from you:
4+ years of commercial programming experience
Strong PHP skills (8.0–8.3) with production work in Laravel
Experience with relational databases, preferably PostgreSQL
Hands-on experience with Redis
Comfort with Git and Docker in day-to-day workflows
Solid understanding of software architecture and design principles
Ability to assess task complexity, decompose work, and prioritize effectively
A mature, self-driven mindset and the ability to take responsibility for tasks and whole features end to end
Fluent Ukrainian or Russian
What helps you rock:
Experience with payment systems
Familiarity with Kubernetes
Experience with GitOps (ArgoCD) and CI/CD pipelines (GitHub Actions)
Familiarity with Grafana for observability
