Why This Job is Featured on The SaaS Jobs
This Senior Software Engineer role sits in a core SaaS integration surface area: connecting a platform’s ordering workflow to third-party POS systems. In the broader SaaS ecosystem, partner integrations are often where product reliability, contractual SLAs, and real-world customer operations intersect, making the work materially different from building purely internal services. The remit also reflects a platform model, where external systems and data flows shape architectural choices and operational priorities.
For a SaaS engineering career, this kind of position tends to build durable strengths in distributed systems design, resilience, and incident-driven learning. Work that is tied to uptime and performance across partner boundaries develops judgement around observability, failure modes, and pragmatic trade-offs, all of which transfer well across B2B SaaS domains. The emphasis on influencing technical direction and coordinating across teams also maps to senior-level expectations in product-led organisations.
The role is best suited to engineers who prefer ownership over ambiguous integration problems and who enjoy collaborating beyond engineering with product and other stakeholders. It will particularly fit someone comfortable balancing delivery with reliability work, and who values mentorship and technical leadership as part of day-to-day contribution.
The section above is editorial commentary from The SaaS Jobs, provided to help SaaS professionals understand the role in a broader industry context.
Job Description
Olo is a leading SaaS platform accelerating digital transformation in the restaurant industry, by helping customers deliver more personalised and profitable guest experiences. As a result, our digital ordering, payment, and guest engagement solutions enable brands to do more with less and make every guest feel like a regular.
While our roots are in NYC, we’re intentionally investing in Belfast and Northern Ireland as a key hub, with an established leadership presence, a local team, and community for the long term. This role is fully remote, offering you flexibility to work from anywhere within NI.
Your new role
In this role, you’ll join as a Senior Software Engineer on the ‘In-Store’ team, which is part of the wider ‘Order’ engineering group.
The ‘In-Store’ squad is focused on building and improving the integrations with new and existing POS (Point of Sale) partners and systems. They ensure that customers orders successfully flow through the Olo ecosystem with a spotlight on revenue by driving critical SLA’s, uptime and overall performance when it comes to integrations with external partners.
This position is perfect for someone who has experience in the POS domain or who has been building systems that integrate with external partner platforms. You’ll have the support of a highly experienced engineering team consisting of 8 engineers in one squad. On a management level, the team is led by a dedicated Engineering Manager.
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How you’ll make an impact- Exhibit mastery of the ‘In-Store’ team’s domain, taking a leading role in the design and architecture of complex systems and influencing technical direction and strategy.
- Own the delivery of large-scale features and projects, coordinating efforts across multiple teams and ensuring alignment with overall business objectives.
- Provide mentorship and technical leadership to both junior and senior engineers, helping to grow the technical expertise within the team and fostering a culture of continuous improvement.
- Collaborate closely with Product, Design, and other stakeholders to shape requirements, making architectural and technical decisions that balance quality, performance, and delivery timelines.
- Ensure the implementation of high-quality, resilient, and scalable distributed systems, incorporating resilience mechanisms and best practices.
- Lead troubleshooting and incident management efforts, taking a proactive role in resolving critical production issues and improving system reliability.
- Advocate for and implements improvements in development practices, such as enhancing CI/CD processes, optimising infrastructure as code, and increasing test automation coverage.
- Coordinate and lead cross-team technical initiatives, ensuring consistency and integration between various services and platforms.
- Stay ahead of emerging technologies and trends, assessing new tools and techniques to enhance the team's capabilities.
- Demonstrate ownership of the team's delivery pipeline, ensuring that code quality, testing standards, and deployment practices are continuously optimised.
What will set you up for success- Bachelor’s Degree in Computer Science, Software Engineering or equivalent practical experience.
- 5+ years of experience in software engineering.
- Expert Programming Skills: Advanced proficiency in the .Net and C# ecosystem, with experience in designing and implementing large-scale, complex systems.
- Architecture & Design Expertise: In-depth understanding of architectural principles and patterns, particularly for distributed systems (e.g., microservices, event-driven architecture using Kafka).
- Resilience & Performance Optimisation: Skilled in applying resilience mechanisms and performance tuning practices to ensure system stability and efficiency at scale.
- Cloud Infrastructure & DevOps: Proficient in managing cloud infrastructure and services (e.g., AWS, Kubernetes/EKS) and implementing DevOps best practices using CI/CD tools like GitHub Actions, Octopus Deploy, and Terraform.
- Leadership & Cross-Team Collaboration: Demonstrate strong leadership and collaboration skills, with the ability to influence and guide technical efforts across multiple teams and ensure alignment with business objectives.
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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 better 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. Learn more at olo.com.
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