Senior Software Engineer (Fullstack), New Ventures

Remote from
USA
Salary, yearly, USD
125,000 - 254,000
Employment type
Full Time,
Job posted
Apply before
14 Aug 2026
Experience level
Senior
Views / Applies
22 / 2

About Toast

We empower the restaurant community to delight guests, do what they love, and thrive.

Verified job posting
This job post has been manually reviewed for authenticity and compliance.

AI Summary

Toast's New Ventures unit seeks a founding Senior Fullstack Engineer to build products for new industries beyond restaurants. This role involves creating features from scratch, leveraging the existing Toast ecosystem, and driving scalable MVP development. The ideal candidate is a strong independent contributor with expertise in React and Kotlin/Java, experienced in 0-to-1 builds and distributed systems. They will collaborate closely with leadership and use cutting-edge AI tools to enhance productivity. This is a high-impact, fast-paced opportunity to shape a new business line.

Role DNA

Job Complexity
Easy Hard
Pace & Pressure
Relaxed Fast-paced
Autonomy Level
Guided Full Ownership
Communication Load
Independent Highly Collaborative
AI Insight The role requires senior-level expertise in fullstack development, 0-to-1 experience, and strong collaboration, but it is not the highest architect level, balancing technical depth with strategic influence.

Salary Analysis

Median Highly Competitive
USD189,500
US Market
USD100k – 220k
0 USD242k
AI Insight The offered salary range of $125,000-$254,000 is highly competitive, with a median of $189,500 that aligns well with senior fullstack roles in the US market. The upper end exceeds typical market max, making it attractive for top talent.

Dear Hiring Manager,

I am excited to apply for the Senior Software Engineer (Fullstack) role at Toast's New Ventures. With a proven track record of building scalable fullstack applications from the ground up, I thrive in fast-paced, 0-to-1 environments where I can drive architecture and deliver impactful features. My expertise in React and Kotlin, combined with deep experience in distributed systems and event-driven architectures, aligns perfectly with the technical demands of this role.

  • I have successfully launched MVPs and scaled them to handle high-volume production loads, collaborating closely with cross-functional teams.
  • I am passionate about leveraging AI tools to accelerate development and foster a culture of innovation, as highlighted in your job description.

I am eager to bring my ownership mindset and collaborative approach to help Toast expand into new industries. I look forward to discussing how I can contribute to your team.

Sincerely,
[Your Name]

Describe a time you built a product or feature from scratch (0 to 1). What was your approach and how did you handle ambiguity?
I led the development of a new payment processing module for a retail platform. Starting with user research and prototyping, I iterated quickly with stakeholders. I focused on a minimal viable feature set, prioritized based on impact, and used continuous feedback loops. This resulted in a successful launch within 3 months, with 98% uptime from day one.
How do you approach frontend architecture decisions for a new project? Can you give an example of a pattern you've advocated for?
I typically start by defining component hierarchy and state management needs. In my last project, I advocated for a compound component pattern to improve reusability and maintainability. This allowed multiple teams to contribute without breaking each other's work, and reduced code duplication by 30%.
Explain how you would design a scalable event-driven system for real-time order updates in a high-velocity restaurant environment?
I would use an asynchronous messaging queue (e.g., Kafka or RabbitMQ) to decouple order ingestion from processing. Events like 'order placed' would trigger services. For frontend, I'd use WebSockets to push updates. I'd ensure idempotency and retry logic for reliability. This architecture handles spikes during peak hours without overload.
How do you ensure code quality and resilience in a fast-paced startup-like environment?
I enforce code reviews, unit/integration tests, and automated CI/CD pipelines. I also advocate for feature flags to gradually roll out changes and monitor metrics. In previous roles, this reduced production incidents by 40% while maintaining velocity.
How have you used AI tools to improve your development workflow? Share a specific example.
I integrated GitHub Copilot into my daily workflow, which accelerated boilerplate code generation and unit testing. For a recent project, I used it to generate API endpoint handlers, reducing development time by 25%. I also used AI-based code analysis to identify potential performance bottlenecks early.

Location(s): US (remote), Boston (hybrid), or New York (hybrid)

 

Years spent building on the restaurant front lines taught us how to build for speed, reliability, and complexity. Built for the dinner rush, our cloud-based platform and tough hardware now power high-velocity operations beyond restaurants. Join us to expand Toast’s impact to other industries – helping all kinds of business operators delight their customers, do what they love, and thrive.

Bready* to make a change?

Toast’s New Ventures business unit has the goal of researching, developing, and eventually scaling a new generation of products and business lines that can have a substantial impact on Toast’s long-term growth. In this unique role, you will be one of the founding engineers on one of our New Venture teams. If you are the type of engineer who would love to build from scratch on the existing Toast ecosystem, this could be the perfect job for you.

We are in the early stages of building out features that cater to new types of establishments, and have seen an exciting level of interest in early conversations with operators. We’re scrappy and motivated to capture this growth, with many opportunities to make a big impact in this emerging space!

About this roll* (Responsibilities)

  • Be a strong independent fullstack contributor for a new team to address critical operator needs currently unmet by Toast. Pair closely with Principal and Staff engineers to ship our roadmap.
  • Bring frontend expertise to the team, establishing and advocating for best practices in frontend patterns to elevate our UI architecture and development standards.
  • Contribute to the architecture and implementation of key features and components for the New Venture across the Toast codebase.
  • Understand operator needs and contribute to the team’s business strategy.
  • Collaborate closely with New Ventures Leads to successfully launch an MVP and facilitate its scalable adoption by a broad customer base.
  • Navigate diverse codebases across disciplines to consistently deliver high-quality code within established timelines.
  • Demonstrate a high degree of ownership in all aspects of development.
  • 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.

Do you have the right ingredients*? (Requirements)

  • Proficiency in React and modern frontend frameworks
  • Proficiency in Kotlin (preferred) or Java
  • A track record of significant technical impact on your team.
  • Experience in 0 -> 1 builds.
  • Strong experience with frontend patterns and architecture, with a proven ability to advise others on building scalable and maintainable frontend solutions.
  • Hands-on experience in working within complex, large-scale distributed systems in production environments.
  • Experience in distributed systems, asynchronous messaging, event-driven architecture, APIs, and integration patterns, especially as they relate to front end clients.
  • Demonstrated ability to deliver clean, maintainable, and resilient code that withstands the test of time.
  • Exceptional communication and collaboration skills.
  • Experience in communicating technical designs within their team.
  • Act as a collaborative and solution-oriented partner to leadership and colleagues.

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 base salary range for this role is listed below. The starting salary will be determined based on skills, experience, and geographic location. In addition to base salary, our total rewards components include cash compensation (overtime, bonus/commissions if eligible), equity, and benefits. You can learn more about how we align pay with local labor markets in our Geographic Pay Zone Philosophy.

Zone A
$159,000—$254,000 USD
Zone B
$138,000—$221,000 USD
Zone C
$125,000—$200,000 USD

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. 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

Diversity, Equity, and Inclusion is Baked into our Recipe for Success

At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry is one of the most diverse, and we embrace that diversity with authenticity, inclusivity, respect, and humility. By embedding these principles into our culture and design, we create equitable opportunities for all and raise the bar in delivering exceptional experiences.

We Thrive Together

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 restaurant community. To learn more about how we work globally and regionally, check out: https://careers.toasttab.com/locations-toast.

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 candidateaccommodations@toasttab.com.

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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.

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