Senior Software Engineer, Backend

QED Investors; Miami (FL); On-site; USD 130,000 - 170,000; Full time

Benefits offered by this job

Competitive Salary

Stock Options

Flexible PTO

Paid Parental Leave

Medical Insurance

Dental Insurance

Vision Insurance

401K

HSA

Job summary

QED Investors is seeking an experienced backend engineer to design, build, and maintain scalable services using C# and .NET in a Payments/FinTech context. You will develop core infrastructure for payment routing, connector management, and platform configuration, collaborating with product and ops teams.

Requirements include 5+ years in production backend development, strong API design, distributed systems expertise, and a collaborative, results‑oriented mindset.

Qualifications

• 5+ years in production backend development using C#/.NET.
• Experience in Payments or FinTech.
• Experience designing APIs and distributed systems.
• Strong problem-solving and collaboration skills.

Responsibilities

• Design, build, and maintain scalable backend services.
• Develop core infrastructure for payment routing, connector management, and platform configuration.

Skills

C#

.NET

Payments

FinTech

APIs

Distributed systems

RESTful APIs

Relational databases

Data modelling

Cloud

High-volume processing

Leadership

Problem solving

Communication

Job description

Design, build, and maintain scalable backend services using C# and .NET. Develop core infrastructure for payment routing, connector management, and platform configuration.

Requirements: Candidates should have 5+ years of experience in building production backend services and strong experience with C# and the .NET ecosystem. A background in Payments or FinTech, along with skills in designing APIs and understanding distributed systems, is essential.

Key Skills: C#, .NET, Payments, FinTech, High-volume Transaction Processing, RESTful APIs, Event-driven APIs, Relational Databases, Data Modelling, Distributed Systems, Cloud-based Applications, Problem-solving, Communication, Collaboration, Technical Leadership

Benefits: Competitive Salary, Stock Options, Flexible PTO, Paid Parental Leave, Medical Insurance, Dental Insurance, Vision Insurance, 401K, HSA, Pre-tax Savings Programs