About Us

At Medius, we believe managing finance should be about strategy, not stress. That same mindset shapes not only the solutions we build, but also the culture we create for our people. We remove complexity, embrace innovation, and give our teams the freedom to focus on what truly matters — whether that’s transforming the future of finance with AI or finding balance to go home on time.

Founded in Sweden in 2001, Medius has grown from a local startup into a global leader in cloud-based spend management solutions. Today, thousands of organizations worldwide trust us to simplify accounts payable and spend management processes. Our journey has been driven by continuous innovation, a passion for technology, and above all — the people who make it happen.

We’re more than a software company. We’re a team of problem-solvers, innovators and collaborators working together to reinvent the category of accounts payable. Our solutions use Artificial Intelligence to eliminate manual work, bring clarity, confidence, and control, and empower finance teams of the future.

At Medius, our values guide how we work and grow together:

• Connect – We believe in the power of people—individually and collectively—and our success depends on understanding and respecting each other. We appreciate that ‘empowering finance teams of the future’ is an exciting endeavor, and we share it with everyone around us.

• Question – We enjoy the challenge of our work and the thrill of collaboration. We are not afraid to question ourselves and each other because we believe diverse perspectives can lead to better outcomes and that there is great power in resolution.

• Own – We are thorough, thoughtful, and decisive. We anticipate what’s next, what a customer might need, and then we deliver. That’s how we get things done. And that’s how we remain a leader. Customers trust us to do our job so that they can focus on what they do best.

At Medius, you’ll join a diverse, global community where curiosity is celebrated, ideas matter, and innovation never stops. If you’re passionate about technology, eager to make an impact, and ready to grow alongside a team that lives its values, Medius is where you can do your best work — your impact is global.

Learn more at www.medius.com

Job overview

We’re looking for a Software Engineer to join our Medius Pay team in Jacksonville. Medius Pay is part of our broader SaaS product suite, helping customers streamline invoice payments through card, ACH, or electronic check. You’ll be working on a fully cloud‑native platform built with C#, .NET 10, React, TypeScript, and Azure—contributing directly to the ongoing evolution of a modern, scalable product used by thousands of customers.

Responsibilities and Duties

• Contribute to the development of our cloud-native payment solution (Azure, C#, .NET 10, EF Core 10, React, TypeScript), used by 70+ global customers—with a goal to double by the end of 2026

• Collaborate across the full feature lifecycle: business discussions, design sessions, implementation, and release

• Work in a supportive cross-functional team that values clean code, professionalism, shared ownership, and collaborates effectively in a Scrum environment.

• Build services using Azure, ServiceBus, MassTransit, DDD, automated testing, and CI/CD

• Develop AI‑enhanced product features powered by LLMs and support new intelligent automation initiatives

• Support and maintain a legacy payment solution still used by hundreds of U.S. customers (ASP Web Pages, .NET Framework 4.5, MS SQL, hosted on Azure Virtual Machines)

Qualifications

• 1–3+ years of experience as a Software Developer (Junior and Mid-level candidates welcome)

• Strong knowledge of C# and .NET

• Experience with modern frontend frameworks (React or similar) and TypeScript

• Experience with relational databases (MSSQL, TSQL, Entity Framework)

• Familiarity with software testing practices

• Experience designing REST APIs

• Ability to work with and improve legacy code

Nice to have

• Experience in fintech or payments

• Experience integrating with banks (ISO 20022, NACHA, etc.)

• Experience with ASP.NET Web Pages, JavaScript

• DDD, CQRS

• Azure cloud experience

• Python

Medius is committed to fair and equitable compensation practices.

The estimated base salary range for this role is $80,000 - 120,000 USD, which represents a good-faith estimate of the compensation for this position.

Actual compensation will be determined based on several factors, including but not limited to relevant skills, experience, qualifications, certifications, internal equity, and the geographic location in which the role is performed. Compensation may vary for roles performed in different locations due to differences in the cost of labor.

The total compensation package for this position may also include eligibility for variable compensation (such as a performance bonus or commission), benefits, and/or participation in other incentive or benefit plans, in accordance with the terms of the applicable plans. Benefits may include medical, dental, and vision coverage, paid time off, and retirement benefits, subject to eligibility requirements.

Medius is an equal opportunity employer. We are committed to providing equal employment opportunities to all qualified applicants and employees, without regard to race, color, religion, sex (including pregnancy, sexual orientation, and gender identity or expression), national origin, ancestry, age, disability (physical or mental), genetic information, medical condition, marital status, citizenship or immigration status, military or veteran status, or any other characteristic protected by applicable federal, state, or local laws.

If you require a reasonable accommodation due to a disability or for religious reasons during the application or interview process, please review our accommodations process.