Senior Full Stack Software Engineer - Menu Foundations [United Kingdom]

Olo is a leading SaaS platform accelerating digital transformation in the restaurant industry, by helping customers deliver more personalized and profitable guest experiences. As a result, our digital ordering, payment, and guest engagement solutions enable hospitality at scale, helping brands to do more with less, and making every guest feel like a regular.
As a Senior Software Engineer, you will play a significant and visible role in helping us scale one of the most advanced food ordering platforms in the market. We are looking for a full stack engineer with front end and UI experience to design, develop, scale, and monitor solutions, improvements, and services in our core ordering platform.
We take pride in a neat codebase with automated tests and continuous integration, and encourage constant refactoring. We encourage new ideas and experimentation. No part of the code base is off limits.
This position is fully remote and allows you to work from anywhere within the United Kingdom.
You will be contracted to Olo through Deel, our Employer of Record. An Employer of Record (EOR) is an organization hired by companies to handle the legal and administrative responsibilities of employing staff, often in countries where the company might not have a local presence.  Here’s an easy way to think of it: You work for Olo in a practical sense, completing your assigned role. The EOR is your formal employer, meaning the EOR takes care of all the administrative and legal responsibilities for your employment. In line with this arrangement, you maintain your day-to-day relationship with Olo, and Deel will be your point of contact for any job-related matters of your engagement. Moreover, you’ll retain all the employment rights you typically have under local employment law when you’re hired through an EOR, and you will be eligible to participate in all statutorily required benefits and pension programs.

What You'll Do

• Demonstrate proficiency in the team's domain and technology stack, providing guidance and mentorship to junior engineers and contributing to technical decision-making.
• Take ownership of complex features and projects, working independently and collaborating with team members to drive development from concept to delivery.
• 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.
• 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, and 3+ years of experience in enterprise UI development with knowledge of JavaScript (TypeScript preferred)
• Hands on experience with RDBMS development
• 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 
• Working knowledge of F# or functional programming (highly desirable), or openness to learning functional programming
• Strong knowledge of building and maintaining distributed systems, leveraging cloud platforms and services (e.g., AWS,Kafka, Redis, distributed messaging systems, Amazon Web Services, Terraform, Docker, Kubernetes/EKS).
• Demonstrate leadership skills by mentoring peers, leading technical discussions, and collaborating effectively across teams and departments to deliver solutions aligned with business priorities.

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 the right data from each touchpoint into a single source—so restaurants can better understand and better 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, accelerating technology’s positive impact and creating a world where every restaurant guest feels like a regular. Learn more at olo.com.
Our best estimate of the compensation range for this opportunity is £57,600 - £68,400 annually, depending on the experience you bring. We look forward to discussing your expectations during the interview process. Apply