Job Title: Senior Software Engineer

Company Name: PEX

Job Url: https://pexcard.pinpointhq.com/postings/288e25a7-28b6-4705-ad8c-f8b0d55ac09c?jr_id=6991b8386ea51a7610f41044

Job Description: We're on a mission to transform how organizations manage workforce spending. For over a decade, PEX has built and evolved solutions that help small and medium-sized organizations manage payments-related activities more efficiently, nimbly, and competitively. Our platform serves tens of thousands of businesses and millions of cardholders, including municipalities, nonprofits, and humanitarian organizations. We are building the future of business expense management with advanced card controls, real-time visibility, and seamless reconciliation. We work each day to find new ways we can help our community of customers operate more efficiently.
You are a Senior Software Engineer who thrives at the intersection of Fintech and AI innovation. You’ll join at an exciting time—this isn’t a role where you’ll be handed tickets and told what to build. You are a customer-focused engineer with an ownership mentality and the ability to act independently to lead features through all stages of our SDLC. You are comfortable using AI to accelerate your own productivity and have a demonstrated ability to learn new AI frameworks, workflows, and tools. You thrive in environments where you collaborate from ideation through deployment and ship code that impacts hundreds of thousands of users.

Key Responsibilities
Experience: 5+ years of full-stack development experience, ideally within a B2B SaaS or Fintech environment.
AI Expertise: Experience integrating customer-facing AI or agentic workflows into production environments.
Security: Demonstrated knowledge of security frameworks and best practices (OWASP).
Communication / Customer Focus: Eager to work directly with customers from feature inception to support.
NICE TO HAVE:
Experience in a high-growth environment scaling platforms for millions of users.
Proficient with the latest versions of .NET, C#, and Angular.
Mastery of working with data in platforms like SQL Server, MongoDB, and Redis.
Comfortable working in cloud platforms such as Azure and AWS.
Familiarity with messaging systems like RabbitMQ or Azure Service Bus.

Skills, Knowledge and Expertise
Experience: 5+ years of full-stack development experience, ideally within a B2B SaaS or Fintech environment.
AI Expertise: Experience integrating customer-facing AI or agentic workflows into production environments.
Security: Demonstrated knowledge of security frameworks and best practices (OWASP).
Communication / Customer Focus: Eager to work directly with customers from feature inception to support.

Benefits

Our People: Join an ego-free team of high-performers who value transparency, collaboration, and constant improvement.
Health: 80% Company-Subsidized Medical, Dental, & Vision.
Time Off: Flexible PTO + Federal Reserve Bank Holiday Schedule.
Finance: 401(k) with 3% Match.
Wellness: ClassPass Credits & Gym Membership Subsidies.
Growth: Sponsored Learning & Development Opportunities.
Location: 100% Remote-First Culture.
About PEX
PEX is a comprehensive and innovative brand that offers a range of products and services to help businesses manage their employee expenses and spending. With PEX, you can easily control and simplify your employee spending, payments to vendors, and distribution of funds to program enrollees. The PEX Cards & Platform puts you in complete control of your finances. PEX offers various solutions tailored to different industries such as non-profit organizations, faith-based organizations, education, gig economy, health & human services, professional services, events & entertainment, and clean energy & construction. Whether you need corporate cards, prepaid cards, virtual vendor cards, grants disbursement, or rewards & incentives, PEX has you covered. With PEX, you can create, fund, and distribute cards quickly and easily, manage purchases, eliminate paperwork, and simplify expense reports. You can also set rules and controls for spending, pay vendors and monthly bills, and even earn 1% back on credit charges. PEX also integrates with the software you use, allowing you to leverage PEX data within your day-to-day financial operations. Join their partner program to enhance your customer experience and build your business. Take control of your finances and transform your business with PEX.