Senior Software Engineer - Payments Fraud Solutions

Olo; Northern Ireland; Remote; GBP 60,000 - 80,000; Full time

Job summary

A leading restaurant technology provider is seeking a Senior Software Engineer to develop and maintain payment solutions. This fully remote position requires 5+ years of software engineering experience, excellent knowledge of C# and .NET, and experience with cloud platforms. The role involves technical leadership, code quality, and cross-team collaboration to drive innovative software solutions. Join a dynamic team focused on enhancing guest experiences through technology.

Benefits

Private healthcare coverage

Statutorily required benefits

Qualifications

• 5+ years of experience in software engineering.
• Excellent knowledge of C#, .NET, and object-oriented concepts.
• Strong knowledge of distributed systems and cloud platforms.
• Adept at writing unit tests and working under version control.

Responsibilities

• Develop, scale, and monitor payment solutions.
• Lead code reviews and set quality standards.
• Deliver reliable, maintainable software solutions.
• Monitor and maintain services in production.
• Collaborate across teams for integrated development.

Skills

C#

.NET

Distributed systems

AWS

Docker

Kubernetes/EKS

Technical leadership

Problem-solving

Communication

Tools

SQL Server

React

NUnit

xUnit

TeamCity

Octopus

Datadog

Sumo Logic

Job description

Overview

Olo is a leading SaaS platform accelerating digital transformation in the restaurant industry, helping brands deliver more personalized and profitable guest experiences through digital ordering, payment, and guest engagement solutions.

As a Senior Software Engineer on the Payments Fraud Solutions team, you will develop, scale, and monitor solutions and services that facilitate payment for online orders, ensuring valid transactions are let through and stopping bad actors. The team adds new features and enhances our many payments integrations. While primarily focused on back-end work, contributions across the stack may be required.

We aim to collaborate well and encourage new ideas and experimentation. No part of the codebase is off-limits. You will work with a passionate team delivering innovative products using modern technologies.

This position is fully remote; while we are looking for candidates based in Northern Ireland, we are open to candidates anywhere within the United Kingdom.

You will be contracted to Olo through Deel, our Employer of Record. An EOR handles the legal and administrative responsibilities of employing staff, often in countries where the company has no local presence. You work for Olo in a practical sense, while the EOR is your formal employer and handles administrative and legal responsibilities. You maintain your day-to-day relationship with Olo, and Deel is your point of contact for job-related matters. You’ll retain employment rights under local law when hired through an EOR, and you will be eligible for private healthcare coverage and statutorily required benefits and pension programs.

What You’ll Do

• Demonstrate proficiency in the team's domain and technology stack, providing guidance and technical decision-making.
• Take ownership of complex features and projects, working independently but communicating with team members to drive development from concept to delivery successfully across multiple time zones.
• Lead code reviews, set quality standards, and offer in-depth feedback to improve code quality across the team.
• Partner with Product and other stakeholders to refine requirements, ensuring solutions are well-architected and aligned with business goals.
• Deliver reliable, maintainable software solutions and actively implement performance optimizations and resilience mechanisms.
• Monitor and maintain services in production, diagnosing and resolving critical issues efficiently with minimal support.
• Participate in the architecture and design of distributed systems, ensuring best practices are followed for reliability and scalability.
• Champion efforts to strategically reduce technical debt, understanding its impact on scalability, performance, and developer velocity.
• Take the initiative to improve the team\'s development processes and tooling, advocating for best practices and automation improvements.
• Collaborate across teams to integrate and align development efforts, ensuring consistency and quality in shared components and APIs.
• Contribute actively to the team\'s knowledge base, lead learning sessions, and promote a culture of continuous improvement.

What We\'ll Expect From You

• 5+ years of experience in software engineering, including excellent knowledge of C#, .NET and object-oriented concepts.
• Strong knowledge of building and maintaining distributed systems, leveraging cloud platforms and services (e.g., AWS, Kafka, Redis, distributed messaging systems, Terraform, Docker, Kubernetes/EKS).
• Adept at writing unit tests and testable code, and working under distributed version control (preferably Git).
• In-depth understanding of Windows, Linux, database, and networking concepts.
• Hands-on experience instrumenting, deploying, and monitoring production code.
• Demonstrate leadership skills by mentoring peers, leading technical discussions, and collaborating effectively across teams and departments to deliver solutions aligned with business priorities.
• Demonstrate strong problem-solving skills and the ability to navigate complex technical challenges.
• Exhibit excellent judgment, seeking diverse perspectives and challenging assumptions to improve outcomes.
• Deliver constructive feedback that empowers individuals and strengthens the team.
• Communicate technical concepts clearly, adapting to both technical and non-technical audiences.
• Consistently meets sprint and quarterly commitments while maintaining high standards of quality and efficiency.

Our Tech Stack Includes

• Backend: .NET (C#), SQL Server
• Frontend: React, ASP.NET MVC
• Tests: NUnit, xUnit, Playwright
• Infrastructure: AWS, TeamCity, Octopus, Datadog, and Sumo Logic

About Olo

Olo (NYSE: OLO) is a leading restaurant technology provider with ordering, payment, and guest engagement solutions that help brands increase orders, streamline operations, and improve the guest experience. Each day, Olo processes millions of orders on its open SaaS platform, gathering data from touchpoints into a single source, so restaurants can better understand and serve every guest on every channel, every time. Over 700 restaurant brands trust Olo and its network of more than 400 integration partners to innovate on behalf of the restaurant community.

Learn more at olo.com.

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