Toast Logo

Toast

Senior Software Engineer, Analytics & Search

Posted 2 Days Ago
Be an Early Applicant
In-Office
Dublin
Senior level
In-Office
Dublin
Senior level
Build and scale Toast’s OLAP platform for real-time analytics, search, and AI-driven data access. Develop backend services, data integrations, platform APIs, and federated GraphQL capabilities using Java and Kotlin, OpenSearch, Pulsar, and related technologies. Ensure correctness, freshness, query performance, reliability, and cost efficiency across large datasets and multiple tenants. Collaborate with engineering teams to understand platform needs and deliver clean, maintainable solutions.
The summary above was generated by AI

Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy. Over 180,000 restaurant businesses run on Toast.

About the team

We are hiring a Senior Software Engineer to join our OLAP Platform team in Dublin. OLAP is the analytical data layer that powers real-time reporting, search and agentic data access for AI-driven products across Toast. We ingest events from across the business, index them into OpenSearch, and expose them to consumer teams through a federated GraphQL layer. One platform, many tenants, restaurant-critical latency and freshness.

The team is in a pivotal stretch of work: scaling the platform to support more domains and more consumers, keeping performance and cost in balance as it grows, and opening it up safely to the next wave of AI-driven products. This is platform engineering at real scale - the systems you build here are consumed by other engineering teams and, downstream, by the tens of thousands of restaurants that run on Toast.

What you'll need to thrive (Requirements)

  • Strong backend engineering skills in Kotlin, Java, or another object-oriented language, with solid instincts around testing and code quality
  • Experience working with large datasets, where correctness, freshness, and query performance all matter at the same time
  • Comfort with document-based or columnar data stores (BigTable, DynamoDB or similar)
  • A strong interest in core search engineering e.g. ranking algorithms, semantic search, natural language search etc
  • Ability to work across team boundaries and pick up context quickly - OLAP touches almost every product area at Toast, and the work can be as much collaboration as execution
  • The ability to break down a problem, understand what the consuming team actually needs, and ship a clean solution. Our users are other engineers, and the ergonomics of the platform matter
  • Use AI tooling as a genuine part of your workflow, not an afterthought
What will help you stand out (Nonessential Skills/Nice to Haves)
  • Experience designing platform APIs that other teams depend on - platform thinking, not just feature delivery
  • Hands-on experience with OpenSearch, Elasticsearch, or a similar query engine at scale
  • Familiarity with data pipelines or event-driven architectures (Kafka, Pulsar, or similar)
  • Experience with federated GraphQL (ElasticGraph, Apollo Federation, or similar) and REST API design
  • Exposure to Ruby, with the ability to navigate, understand, or modify existing source code.
Our Tech Stack
  • A core of Java & Kotlin based backend services.
  • OpenSearch as the core query engine with ElasticGraph on top for federated GraphQL
  • Pulsar & Camel for message-based integrations.
  • React SPAs leveraging Tailwind, GraphQL and Storybook.
  • And many more technologies that help us build a top class platform.

**This is a hybrid role requiring in-office collaboration two days per week in our Dublin office.**

AI at Toast

At Toast, one of our company values is that we're hungry to build and learn. We believe learning new AI tools empowers us to build for our customers faster, more independently, and with higher quality. We provide these tools across all disciplines, from Engineering and Product to Sales and Support, and are inspired by how our Toasters are already driving real value with them. The people who thrive here are those who embrace changes that let us build more for our customers; it’s a core part of our culture.

Our Total Rewards Philosophy 
We strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry. Our total rewards package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet Toasters’ changing needs. Learn more about our benefits at https://careers.toasttab.com/toast-benefits.

How Toast Uses AI in its Hiring Process

Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. We ask that you complete interviews and assessments on your own, without real-time AI tools, recording, or transcription bots, unless we tell you otherwise in advance. To learn more: https://careers.toasttab.com/ai-in-hiring

Our Approach to Hybrid Working
We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the hospitality community, regardless of location. Please visit the Locations page on our career site to learn more about our in-office expectations by region: https://careers.toasttab.com/locations-toast

People Are the Secret Ingredient in Our Recipe for Success

At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry brings together people with a wide range of backgrounds, experiences, and perspectives, and we value that same breadth at Toast. We strive to build a culture grounded in authenticity, respect, and humility, where every Toaster has a real opportunity to grow, contribute, and do their best work—raising the bar in delivering exceptional experiences for our customers and each other.

Apply today!

Toast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact [email protected].

------

For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Toast New York, New York, USA Office

Toast New York City Office

Located in Flatiron, steps from Union Square’s convenient subway station and popular restaurants, the office was designed with Toasters and our customers in mind. We have an array of meeting spaces, from open-concept areas to soundproofed phone booths, and a fully stocked kitchen.

Similar Jobs at Toast

2 Hours Ago
In-Office
Expert/Leader
Expert/Leader
Cloud • Fintech • Food • Information Technology • Software • Hospitality
Design, build, and lead scalable backend and full-stack solutions for AI agent systems in marketing and demand generation. Write code, prototype patterns, resolve performance bottlenecks, define architecture, ship features end-to-end, and monitor production outcomes. Collaborate with product, design, and engineering leaders while mentoring engineers and advancing agentic development practices, software quality, and technical standards.
Top Skills: Ai AgentsAndroidClaude CodeDynamoDBGraphQLJavaKotlinLlmsPostgresReactStorybookTailwind
2 Hours Ago
In-Office
Senior level
Senior level
Cloud • Fintech • Food • Information Technology • Software • Hospitality
Build and scale Toast’s labor cost and timekeeping platforms, processing tens of millions of shift events weekly. Responsibilities include designing, implementing, testing, deploying, operating, and improving backend systems; owning production services; partnering with product and design; conducting code reviews; and mentoring engineers. The role focuses on reliable, maintainable, data-intensive systems operating at massive scale.
Top Skills: AndroidClaude CodeDynamoDBGraphQLJavaKotlinPostgresReactStorybookTailwind
2 Days Ago
In-Office
Senior level
Senior level
Cloud • Fintech • Food • Information Technology • Software • Hospitality
Design, develop, and maintain high-performance Android POS payment integrations using Kotlin. Lead architecture and technical decisions, optimize secure mobile payment flows, integrate hardware SDKs, ensure PCI-DSS compliance, troubleshoot complex issues, and mentor engineers. Collaborate across backend, product, UX/UI, and QA teams while improving reliability, observability, scalability, and development practices.
Top Skills: AndroidJavaJvmKotlinKotlin CoroutinesPci-Dss

What you need to know about the NYC Tech Scene

As the undisputed financial capital of the world, New York City is an epicenter of startup funding activity. The city has a thriving fintech scene and is a major player in verticals ranging from AI to biotech, cybersecurity and digital media. It also has universities like NYU, Columbia and Cornell Tech attracting students and researchers from across the globe, providing the ecosystem with a constant influx of world-class talent. And its East Coast location and three international airports make it a perfect spot for European companies establishing a foothold in the United States.

Key Facts About NYC Tech

  • Number of Tech Workers: 549,200; 6% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Capgemini, Bloomberg, IBM, Spotify
  • Key Industries: Artificial intelligence, Fintech
  • Funding Landscape: $25.5 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Greycroft, Thrive Capital, Union Square Ventures, FirstMark Capital, Tiger Global Management, Tribeca Venture Partners, Insight Partners, Two Sigma Ventures
  • Research Centers and Universities: Columbia University, New York University, Fordham University, CUNY, AI Now Institute, Flatiron Institute, C.N. Yang Institute for Theoretical Physics, NASA Space Radiation Laboratory

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account