Software Engineer - Core

Segment (Twilio); Belfast; Hybrid; GBP 35,000 - 55,000; Full time

Job summary

Olo offers a fully remote Software Engineer role on the Core team of the Order Engineering group, based to Belfast/Northern Ireland. You will help shape baskets, orders, checkout, promotions, capacity management, and related services, writing clean, well-tested code and guiding technical decisions.

You’ll collaborate across teams, own parts of the delivery pipeline, participate in code reviews, and grow through hands-on AI tooling and training.

Qualifications

• Bachelor’s degree in CS/software engineering or equivalent experience.
• At least 1.5 years in a software engineering role.
• Proficiency in C#/.NET and design patterns.
• Familiarity with GitHub and source control workflows.
• Familiarity with NUnit or Jest for testing.
• Understanding of distributed systems fundamentals.
• Experience with Jira/Confluence and GitHub.

Responsibilities

• Develop understanding of Core domain and technology stack.
• Handle small to medium feature work with guidance from seniors.
• Write clean, well-tested code and participate in code reviews.
• Collaborate to understand feature requirements and implement solutions.
• Build reliable software components with long-term maintainability.
• Own the delivery pipeline and code quality standards.
• Participate in stand-ups, sprint ceremonies, and learnings.
• Engage in on-call duties as required.

Skills

C#/.NET

Unit testing

GitHub

Distributed systems

Jira/Confluence

Code reviews

Education

Bachelor’s Degree in Computer Science or related field

Equivalent practical experience

Tools

GitHub

Jira

Confluence

Job description

Olo is a leading SaaS platform accelerating digital transformation in the restaurant industry, helping customers deliver more personalized and profitable guest experiences. While our roots are in NYC, we’re intentionally investing in Belfast and Northern Ireland as a key hub. This role is fully remote and offers flexibility to work from anywhere within NI.

You will join as a Software Engineer on the Core team of the Order Engineering group. The Core team owns key parts of Olo’s platform—including baskets, orders, checkout, promotions, capacity management, and the services that power ordering experiences at scale. You will help shape the future of these systems, guiding technical decisions, improving platform reliability and scalability, mentoring other engineers, and actively contributing hands‑on code.

Responsibilities

• Develop an understanding of the Core team’s domain and technology stack, and actively seek guidance to grow technical expertise.
• Handle small to medium feature work with support from senior engineers, ensuring tasks are completed on schedule.
• Write clean, well‑tested code in line with established coding standards and participate in code reviews.
• Collaborate with team members to understand feature requirements and implement solutions with guidance.
• Build reliable and maintainable software components, focusing on quality and long‑term sustainability.
• Use version control systems (e.g., GitHub) to manage code changes and maintain a consistent development workflow.
• Participate in team meetings and sprint ceremonies, such as daily stand‑ups and sprint retrospectives, providing updates and feedback.
• Engage in learning activities, including game days and training sessions, to build familiarity with the company’s tools and processes.
• Troubleshoot and debug issues with guidance, learning to identify and resolve common software bugs.
• Collaborate across teams and stakeholders, demonstrating teamwork skills for larger projects.
• Own the delivery pipeline, ensuring that code quality, testing standards, and deployment practices are continuously optimized.
• Use Claude Code and GitHub Copilot extensively as part of the daily workflow, and grow skills through hands‑on AI training.
• Participate in on‑call duties as required, with specific responsibilities determined by the assigned team and area of expertise.

Qualifications

• Bachelor’s Degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• At least 1.5 years of experience in a software engineering role.
• Proficiency in C#/.NET and familiarity with basic programming constructs and design patterns.
• Basic understanding of version control tools (e.g., GitHub) and source code management workflows.
• Familiarity with unit testing and test‑driven development frameworks such as NUnit or Jest.
• Basic understanding of distributed systems fundamentals, focusing on building reliable components.
• Experience using collaboration platforms such as Jira, Confluence, and GitHub.

About Olo

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 serve every guest on every channel, every time. Over 800 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.