This hybrid role is based in Dublin, Ireland (Full relocation provided).

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.

What is our Mission

Toast has established itself as the leading hospitality platform in the US, and we are now setting our sights on the global stage. As part of the International team, in our missions to expand globally,  we are building the core systems to launch Toast into new markets. You will join a high-impact, high-ownership engineering team solving complex technical challenges in a fast-paced environment. We are looking for leadership that balances technical excellence with a strong product mindset to drive continuous growth for both the team and our platform. 

A day in the life (Responsibilities)

• Lead complex projects within a cross-functional collaborative and supportive environment.
• Orchestrate our backend services to support internationalization working across software both in the restaurant and the cloud
• Design, build, deploy and maintain highly resilient and scalable systems critical to our customers’ success.
• Iterate on our technical approach to data management in support our international strategy 
• Mentor and provide technical guidance to team members, leading technical discussions and promoting best engineering practices.
• Work directly with pilot customers (sometimes in the restaurant!) to ensure successful delivery and operation
• Advocate for best coding practices, raising the bar for yourself, your team, and the company.
• Leverage cutting edge AI tools to enhance your development workflow, improve velocity, and help pioneer new approaches to building - contributing to a culture of innovation and productivity across the team.

What you'll need to thrive (Requirements)

• 8+ years of experience in delivering high quality, reliable services to production using Java, Kotlin or other object oriented language(s)
• Proven track record of architecting, supporting and debugging large distributed & multi threaded applications.
• Drive to work across our tech stack and support other engineers in resolving challenging problems
• Passionate about making users happy and seeing people use your product in the wild.
• Ability to embrace an agile mindset focused on delivering usable software.
• Experience with  fiscalisation, internationalization is a plus

Our Tech Stack

• A core of Java & Kotlin based backend services.
• React SPAs leveraging Tailwind, GraphQL and Storybook.
• Android app built in Java & Kotlin running in the restaurant.
• PostgresQL and Dynamodb as core persistence.
• Pulsar, Camel and RabbitMQ for message-based integrations.
• 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.**

#LI-HYBRID

#BI-Hybrid

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.

The Team:

The Accounts & Identity team builds highly scalable java based services that safely connects PlayStation users with the social and entertainment experiences they love. Our services provide customers with always-available unified experiences to enrich the PlayStation ecosystem with simplicity, security, and reliability. Our mission is to provide the highest level of safety, performance and reliability for our customers.

What you'll be doing:

As part of our team, you'll develop distributed services, collaborate with product managers, architects, engineers, and operations team members to build highly robust solutions. Role responsibilities include:

• Design, develop, test, deploy, maintain, and improve software
• Provide solutions that are simple, maintainable, well abstracted, and with accurate test coverage
• Perform in-depth requirement analysis and design/code reviews with peers
• Manage individual project priorities, deadlines, and deliverables with your technical expertise
• Problem solve and triage issues including addressing operational incidents

What we're looking for:

• BS degree in computer science or equivalent with 3+ years of strong hands-on Java (ideally Reactive Java Programming) development experience for backend web services using Spring boot framework
• Experience developing services built for deployment into AWS EC2 or EKS using Docker
• Experience developing applications on Unix/Linux platforms
• Experience with servlet containers (e.g., Tomcat), JAXRS, Spring, and related technologies.
• Experience developing REST based web services also utilizing JSON and XML.
• Experience with GraphQL including the Apollo Client and GraphQL-compliant server stacks.
• Familiarity with data storage technologies such as Oracle, DynamoDB, and Cassandra
• Experience with agile development methodologies and familiarity with continuous integration and deployment processes.
• Experience with tools such as Datadog, Splunk, Jenkins, JIRA, Git etc.
• Demonstrated ability to deliver results and a proactive approach to overcoming obstacles.
• Outstanding verbal and written communication skills.
• Works well with others at all levels, and is effective at working with geographically remote and culturally diverse teams.
• Passion for quality with the ability to inspire, excite and motivate other team members.

• BS degree in computer science or equivalent with 3+ years of strong hands-on Java (ideally Reactive Java Programming) development experience for backend web services using Spring boot framework
• Must have - Experience developing front end applications using React Native, React Native for Web, React Web and Swift
• Must have - Experience with GraphQL including the Apollo Client and GraphQL-compliant server stacks.
• Must have - Experience developing Mobile/Computer Apps targeting iOS, Android and PC environments
• Experience developing services built for deployment into AWS EC2 or EKS using Docker
• Experience developing applications on Unix/Linux platforms
• Experience with servlet containers (e.g., Tomcat), JAXRS, Spring, Spring Boot and related technologies.
• Experience developing REST based web services also utilizing JSON and XML.
• Experience with agile development methodologies and familiarity with continuous integration and deployment processes.
• Experience with tools such as Datadog, Splunk, Jenkins, JIRA, Git etc.
• Demonstrated ability to deliver results and a proactive approach to overcoming obstacles.
• Outstanding verbal and written communication skills.
• Works well with others at all levels, and is effective at working with geographically remote and culturally diverse teams.
• Passion for quality with the ability to inspire, excite and motivate other team members.

The Principal Software Engineer role requires partnering across Product Management, Architects, Engineering, Hosting and Operations. Extensive hands-on technical expertise coupled with ingenuity, broad industry knowledge and excellent communication skills. Will use their understanding of technology, frameworks, and constraints to help pave the way for future innovation on our platforms.

You will contribute to the architecture of large-scale commerce systems on Sony’s PlayStation Network Platform. Your work will follow industry standard guidelines to enable highly available, active-active, extensible services.

Participates in product road-map discussions and identify key areas for improvement in the product and incorporates these goals into ongoing & future development initiatives.

What you'll be doing:

• You are passionate about making distributed systems better and have an insatiable thirst to keep learning.
• You have deep expertise in system engineering and have successfully improved the performance of the software stack.
• You design and develop high-quality software solutions that meet requirements. Including code, debugging, and testing.
• You have implemented rigorous standard methodologies for measuring, understanding, predicting, and improving how enterprise grade systems operate (even better if they happen to be Data oriented). 
• You have taken a project from scoping requirements to actual launch of project.
• You know how to build a positive relationship with Architects to influence technology decisions. 
• You document designs, implementations and tests.
• You have led a development community establishing and influencing quality engineering standard methodologies across the development community.

What we're looking for:

• BS Degree in Engineering, Computer Science or equivalent experience.
• 10+ years’ experience in software development, programming, design, and analysis.
• Expertise in programming languages and technologies including Java, Python, Golang, and infrastructure as code (Terraform, Cloud formation).
• Experience delivering high performance, active-active, scalable services (Enterprise Java/J2EE, Web Services, large-scale data systems/NoSQL) 
• Experience with Containers (Docker and Kubernetes)
• Proficient in the software development process, including coding standards, code reviews, source control management, build processes, testing, and operations. 
• Track record monitoring and analyzing system performance, isolating issues or bottlenecks that could impact reliability, performance, and scalability.
• Possess deep knowledge of computer science fundamentals such as object-oriented design, data structures, algorithm design, problem solving, and complexity analysis.
• Identifying and mitigating technical risks.
• Strong knowledge of SQL and NoSQL programming (Oracle, Cassandra, Amazon Aurora) including both relational database schema designs and schema-less systems.
• Hands-on experience in Amazon Web Services, at enterprise scale is required including familiarity with DynamoDB, Aurora, EC2, and other AWS services.
• Experience performing performance testing and/or development efforts for a complex, high throughput system.
• Solid understanding of the path(s) customer requests flow from web browser to back-end.
• Synchronous and asynchronous patterns and use cases. (REST, RPC, EDA, Eventual Consistency)
• Understanding of Domain Driven Design
• Understanding of loose coupling software design patterns (i.e., hexagonal architecture)
• Have an opinion around microservice vs SOA.
• Conduct research on new technologies and methodologies, and make recommendations for improvement. 
• Proven ability to take a project from scoping requirements to actual launch of project.
• Work with other Principal Engineers to align technology and architecture strategies.
• Extensive experience with agile development methodologies and practices involving creating tests prior to coding required.
• Experience with open source technology stacks and scripting technologies required.
• Ability to handle periodic on-call duty as well as out-of-band requests.
• Possess outstanding verbal and written communication skills and be able to work with others at all levels, effective at working with geographically remote and culturally diverse teams.

Helpful but not required:

• Game industry experience
• Azure/GCP

You came to Tenable for a career, not just a job. We want you to succeed in the role you have today, but also know there are opportunities for you to grow and develop professionally.

Your Role:

Tenable is looking for a Senior Software Engineer to join our Data Integrations team. Our team is focused on designing, developing, and maintaining state-of-the art solutions for data ingestion, data modelling and data serving within the Tenable One platform. As a Senior Software Engineer on the Data Integration team, you will have the opportunity to be part of implementing and maintaining a globally distributed and highly scalable cloud-native data platform using modern technologies and programming languages.

Your Opportunity:

• Work cross-functionally with other developers, product owners and various Tenable teams to design, develop and maintain cloud services for Data Platform services.
• Promote clear and simple software design while actively driving the team toward better practices and solutions.
• Support a true DevOps / CICD software delivery model.
• Promote high quality aimed at areas such as security, reliability, testability and
• maintainability.
• Drive innovation by contributing new ideas for our processes, tools, and technologies.
• Coach and mentor mid-level and junior staff.

What You'll Need:

• B.S. degree in Computer Science or a directly related field, or equivalent work experience.
• 5+ years of software development experience in enterprise-level, backend systems.
• Experience developing in languages such as: Java or Kotlin.
• Experience working and supporting cloud-native workloads specifically with Kubernetes, docker and container registries.
• Experience with infrastructure as code e.g. Terraform, CloudFormation.
• Strong experience with AWS services, including S3, DynamoDB, EC2, and Aurora,
• preferably via IAC, SDK and/or API.
• Experience with CI/CD pipelines and tools like Jenkins.
• Proficiency with Git for source code version control.
• Experience designing features end to end, including rollout and monitoring.
• Accountability for the behavior of your software in production.
• Experience in working in an Agile team, and an enthusiasm for working collaboratively within and across product teams.
• The ability to work independently and as a part of a team, and to lead/drive projects as necessary.
• Experience coaching and leading mid-level and junior staff in the design, implementation, and execution of highly technical development projects.
• The desire to continuously learn and be exposed to new technologies.

• Experience with data transfer and streaming technologies such as Kafka, Flink, NiFi, Kinesis, etc.
• Experience with cloud data platforms such as Snowflake, Databricks, Clickhouse, etc.
• Experience with data file formats like Parquet and Avro. Experience with Iceberg would be a plus.
• Understanding of SQL scripting and procedures with relational databases.
• History of open-source contributions.

#LI-AV1

#LI-Hybrid

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.

Fintech at Toast operates one of the most critical portions of the Toast infrastructure: processing payments on behalf of our restaurants and ensuring that restaurants are paid in a timely manner. Payment processing is a key source of Toast’s revenue and also the lifeblood of our customers; we process millions of dollars in transactions per day. 

We are seeking a Senior Software Engineer to join our Payments team to build out our unified payment processing solution. This platform offers a single, integrated service for payment acceptance across various channels and supports a configurable enterprise approach. It is designed to allow a build-once, available-to-all strategy for both existing and emerging payment methods. The successful candidate will contribute to the development of services providing supporting and core functionality within and around this payment processing solution.

A day in the life (Responsibilities)

• Design, build, and deliver features for Toast’s payments products 
• Develop and implement automated test suite to ensure the code shipped to our customers meets the highest quality standards
• Roll* features out to customers, including monitoring for success
• Collaborate with our PM (and UX) on the definition and design of features  
• Partner with a wide array of teams across Toast 
• Work with experienced engineers to deliver design and code review 

What you'll need to thrive (Requirements)

• 5+ years of experience in designing and implementing robust backend services
• Proven ability to develop scalable and secure APIs that integrate with various internal/external systems
• Knowledge of best practices in API lifecycle management, including versioning, documentation, and deprecation strategies
• Demonstrated experience with microservices architecture and containerization technologies for enhanced scalability and maintainability

Special Sauce (*Nice to Haves)

• Demonstrated proficiency with DynamoDB or PostgreSQL
• Proficiency in Kotlin (or Java and willing to learn Kotlin) and Kotlin-specific frameworks and libraries for building efficient backend solutions
• Experience with modern data architectures (event sourcing, OLAP, ETL/ELT, streaming data)
• Experience designing payments APIs
• Familiarity with PCI-DSS
• Familiarity with AI-augmented development workflows and tools (e.g., Claude Code, GitHub Copilot, Codex, or similar)

#LI-HYBRID
#BI-Hybrid

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.

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.

What is our Mission

Toast has established itself as the leading hospitality platform in the US, and we are now setting our sights on the global stage. As part of the International team, in our missions to expand globally,  we are building the core systems to launch Toast into new markets. You will join a high-impact, high-ownership engineering team solving complex technical challenges in a fast-paced environment. We are looking for leadership that balances technical excellence with a strong product mindset to drive continuous growth for both the team and our platform. 

A day in the life (Responsibilities)

• Lead complex projects within a cross-functional collaborative and supportive environment.
• Orchestrate our backend services to support internationalization working across software both in the restaurant and the cloud
• Design, build, deploy and maintain highly resilient and scalable systems critical to our customers’ success.
• Iterate on our technical approach to data management in support our international strategy 
• Mentor and provide technical guidance to team members, leading technical discussions and promoting best engineering practices.
• Work directly with pilot customers (sometimes in the restaurant!) to ensure successful delivery and operation
• Advocate for best coding practices, raising the bar for yourself, your team, and the company.
• Leverage cutting edge AI tools to enhance your development workflow, improve velocity, and help pioneer new approaches to building - contributing to a culture of innovation and productivity across the team.

What you'll need to thrive (Requirements)

• 8+ years of experience in delivering high quality, reliable services to production using Java, Kotlin or other object oriented language(s)
• Proven track record of architecting, supporting and debugging large distributed & multi threaded applications.
• Drive to work across our tech stack and support other engineers in resolving challenging problems
• Passionate about making users happy and seeing people use your product in the wild.
• Ability to embrace an agile mindset focused on delivering usable software.
• Experience with  fiscalisation, internationalization is a plus

Our Tech Stack

• A core of Java & Kotlin based backend services.
• React SPAs leveraging Tailwind, GraphQL and Storybook.
• Android app built in Java & Kotlin running in the restaurant.
• PostgresQL and Dynamodb as core persistence.
• Pulsar, Camel and RabbitMQ for message-based integrations.
• 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.**

#LI-HYBRID

#BI-Hybrid

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.

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. 

We’re seeking a Software Engineer to work within our team focused on building impactful capabilities that empower restaurants to drive Guest engagement, retention and growth. The team will help shape the future of how restaurants use technology to connect with their guests - increasingly through AI-powered tools and experiences that drive automation, personalization and smarter decision-making. You will be a key part of a high-impact, high-ownership engineering team solving complex challenges in a fast-moving product space. Your role will balance technical excellence alongside a strong product mindset to solve for continuous growth within both the team and our product space. 

A day in the life (Responsibilities)

• Deliver projects that deeply connect restaurants with their guests within a cross-functional collaborative and supportive environment.
• Design, build, deploy and maintain highly resilient and scalable systems critical to our customers’ success.
• Collaborate with team members and other engineers across the company.
• Monitor feature rollouts to ensure customer success, iterating and improving when necessary.
• Advocate for best coding practices, raising the bar for yourself, your team and the company.
• Leverage cutting edge AI tools to enhance your development workflow, improve velocity, and help pioneer new approaches to building - contributing to a culture of innovation and productivity across the team.

What you'll need to thrive (Requirements)

• Driven by impact and solving for the customer
• Proficient in Java, Kotlin, or similar object-oriented languages
• Experience with modern web technologies and UI frameworks (e.g., React, Javascript , TypeScript, REST, GraphQL)
• Enjoys building well-engineered, usable and accessible systems
• Ability to break down problems and communicate solutions clearly throughout cross-functional teams.
• Values personal and team growth, balancing task completion with platform stability.

Our Tech Stack

• A core of Java & Kotlin based backend services.
• React SPAs leveraging Tailwind, GraphQL and Storybook.
• Android app built in Java & Kotlin running in the restaurant.
• PostgreSQL, Dynamodb for persistence.
• Pulsar, Camel and RabbitMQ for message-based integrations.
• And many more technologies that help us build a top class platform.

**This role requires a minimum of two days per week in our Dublin office**

#LI-HYBRID

#BI-Hybrid

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.

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.

We’re not your traditional tech company and we don’t aim to be. Going against the grain is in our DNA. Building a revolutionary product begins with revolutionary thinking. That’s why we value diversity of background and lived experience. Together, we empower restaurants of all sizes to build great teams, increase revenue, improve operations, and delight their guests. We pair our deep understanding of the restaurant industry with powerful cloud based software and restaurant-grade hardware to deliver an intuitive all-in-one platform. Join us on our mission to empower the restaurant community to delight guests, do what they love, and thrive.

Fintech at Toast operates one of the most critical portions of the Toast infrastructure: processing payments on behalf of our restaurants and ensuring that restaurants are paid in a timely manner. Payment processing is a key source of Toast’s revenue and also the lifeblood of our customers; we process millions of dollars in transactions per day. 

We are seeking a Staff Software Engineer to join our Payments team to build out our unified payment processing solution. This platform offers a single, integrated service for payment acceptance across various channels and supports a configurable enterprise approach. It is designed to allow a build-once, available-to-all strategy for both existing and emerging payment methods. The successful candidate will guide and contribute to the development of services providing supporting and core functionality within and around this payment processing solution.

A day in the life (Responsibilities)

• Plan, design, build, and deliver features for Toast’s payments products 
• Plan, develop, and implement best practices such as automated test suites to ensure the code shipped to our customers meets the highest quality standards
• Roll - pun intended! - features out to customers, including monitoring for success
• Collaborate with our PM (and UX) on the definition and design of features  
• Collaborate and partner with a wide array of teams across Toast in order to spread knowledge inter- and intra-team
• Lead and work with experienced engineers to deliver design and code review

What you'll need to thrive (Requirements)

• 8+ years of experience in designing and implementing robust backend services
• Ability to step into a technical leadership role on the team, guiding/coaching/mentor more junior engineers on best practices in architecture, design, coding, testing, deployment, etc.
• Proven ability to design and develop scalable and secure APIs that integrate with various internal/external systems
• Applied knowledge of best practices in API lifecycle management, including versioning, documentation, and deprecation strategies, with the ability to share this amongst the team and peers
• Demonstrated experience with microservices architecture and containerization technologies for enhanced scalability and maintainability

Special Sauce (*Nice to Haves)

• Demonstrated proficiency with DynamoDB or PostgreSQL
• Proficiency in Kotlin (or Java and willing to learn Kotlin) and Kotlin-specific frameworks and libraries for building efficient backend solutions
• Experience with modern data architectures (event sourcing, OLAP, ETL/ELT, streaming data)
• Experience designing payments APIs
• Familiarity with PCI-DSS
• Familiarity with AI-augmented development workflows and tools (e.g., Claude Code, GitHub Copilot, Codex, or similar)

#LI-HYBRID
#BI-Hybrid

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.