Shape the developer-facing surfaces of our company- the CLI, dashboard, App Builder, and documentation. You will own full features from design to production across TypeScript, React, and Go.

We are looking for a brilliant, curious and creative Senior Full-Stack Engineer with a passion for data thats ready to take on a huge opportunity to solve tax, and save people time and money. If youre all that and looking to lead, invent, and grow professionally you should definitely consider applying to join us on our journey.

Key responsibilities

Lead and own full-cycle (from idea to production) projects that are directly used by and impact millions of people.

Work closely with the product & UX to define product requirements and execute the development plans.

Design system architectures, select/ evaluate tools.

Build cloud-native microservices.

Mentor, and grow the team, our practices, and our technology stack.

we are looking for a Full-Stack Engineer.
Own features end-to-end across our FastAPI + React/TypeScript stack - the catalog, the seller wizard, payments, admin tooling, and the infrastructure layer we're building next.
What you'll do
Design, build, test, and deploy features across the frontend (React + TypeScript) and the backend (FastAPI + PostgreSQL).
Work on what buyers and sellers touch every day - the catalog, the listing wizard, checkout, the seller dashboard, admin tools.
Help build the next phase: hosting and running sellers' apps on our own infrastructure.
Keep the bar high - tests, code review, security-minded by default.

we are a leading direct-to-consumer platform for app publishers.
we help publishers sell digital goods directly to their users - bypassing traditional app store commissions and owning the full payment and commerce experience.
the result: higher margins, better flexibility, and a more direct relationship with end users.
backed by $89m from leading investors and operators, weve grown 14x in the past year and now process over a billion dollars annually. were building the infrastructure that lets modern app businesses take back control of monetization - at scale.
as a Full Stack engineer you will play a key role in building scalable, high-performance end-to-end infrastructure and user experiences that power payment flows for global merchants.
youll work closely with product managers, designers, and customer-facing teams to create reliable, elegant, and Developer -friendly solutions used across multiple products and integrations. this role combines strong product thinking with engineering excellence - from building scalable backend services and robust apis, to creating reusable UI systems and sdks, while optimizing performance, reliability, and scalability across our platform. were looking for someone who thrives in a fast-moving remote environment, takes ownership end-to-end, communicates clearly, and can independently drive projects from concept to production.
responsibilities:
own features end-to-end across the stack (80% backend, 20% frontend ) - from technical planning, database design, and architecture through implementation, testing, deployment, and monitoring.
design and develop scalable Full-Stack applications, building reusable UI components, shared libraries, and sdks using React, typescript, and modern web technologies.
architect, build, and maintain highly reliable backend services, microservices, and robust apis to support complex payment flows and internal integrations.
optimize system performance and ensure high engineering standards through code reviews, automated testing, documentation, and observability across both client and server-side infrastructure.
manage sdk and npm package versions, including release management, while improving development workflows, tooling, and best practices across the engineering ecosystem.
collaborate closely with product, design, and customer-facing teams to deliver intuitive user experiences, contributing to a strong culture focused on quality and ownership.

We are looking for an exceptional, driven, and technically visionary Staff Full-Stack Engineer to help shape the future of our platform and accelerate our mission to simplify taxes for everyone. Youll play a central role in designing and building scalable systems and tools that enable our teams to deliver exceptional user experiences with speed and confidence. If you're passionate about technical leadership, enjoy solving complex architectural challenges, and want to make a meaningful impact on millions of users, wed love to have you join us.

Responsibilities

Critical, cross-functional engineering initiatives from design to development and deployment, ensuring quality and scalability.

Participate in technical decision-making and knowledge sharing across multiple teams.

Collaborate with Product, UX, and other stakeholders to deliver seamless and data-driven experiences.

Evaluate and introduce new tools, technologies, and practices that raise the bar for engineering excellence.

Guide by example - service ownership, observability, and operational best practices across the engineering organization.

Promote a culture of high standards, clean code, testing, and continuous improvement.

We are looking for a Senior Full-Stack Engineer to build reliable, high-impact product experiences from browser to backend. You will own meaningful product areas, turn ambiguous customer problems into pragmatic technical solutions, and help set a high bar for quality, speed, and engineering judgment.


What youll do
Design, build, test, deploy, and operate end-to-end product capabilities.
Build polished frontend experiences with React and TypeScript.
Develop scalable backend services and APIs with Node.js and TypeScript.
Partner closely with Product and Design to shape solutions before implementation.
Make sound architecture decisions across application boundaries, APIs, data models, security, performance, and observability.
Use AI-assisted engineering tools thoughtfully to improve development speed and quality, while rigorously validating their output.
Build AI-enabled or agentic product capabilities where they create clear customer value.
Raise the engineering bar through code reviews, pairing, documentation, and mentorship.

We're selective about who joins us. Our lean engineering team is made up of people who've built and delivered at a high level before, and we're looking for one more exceptional Full Stack Engineer to raise the bar again. You'll work directly with the founding team, own projects end-to-end, and shape the technical direction of a product already proving itself at scale.
What You'll Do:
Own features end-to-end, from product and technical design through implementation, testing, and deployment
Build and refine AI-powered features, pushing on quality, performance, and cost
Build across both our merchant-facing dashboard and customer-facing storefronts
Solve real performance and scalability challenges as usage grows
Design and evolve our APIs, services, and data models
Work with event and usage data at scale across our product and analytics system
Help define our architecture and engineering practices as we grow

We're looking for an experienced Full Stack Engineer to join our growing team and take a key role in building and shaping our web application. Youll own features end-to-end - from design and architecture through development, testing, and production - working directly with customers and stakeholders to deliver a world-class product.
What You Will Do
Own and develop our web application end to end, spanning frontend and backend, from design through production
Build rich, data-driven user interfaces and dashboards using Next.js and React
Design and implement scalable backend services and APIs that power the company platform
Work with AWS infrastructure, including RDS and ClickHouse, to deliver high-performance data-driven features
Collaborate closely with product, design, and customers to translate complex security workflows into intuitive experiences
Participate in architectural decisions and help define technical direction as an early member of the engineering team
Take full ownership and accountability for features and projects - from ideation to deployment and monitoring.

we are looking for a Senior Full Stack Developer.
In this role you will:
Design, build and maintain our full product suite, including backend services, mobile applications, and web products.
Work with engineers, product managers, and designers to craft world-class experiences and participate in all aspects of the project lifecycle.
Take part in the early stages of the product and help set the groundwork for the future of the engineering team and the company.

we are looking for an experienced Full Stack Developer to join our engineering team. In this role, you will be responsible for developing and maintaining high-quality web applications, working across both backend and frontend technologies, and contributing to scalable and reliable products. You will work closely with other engineers and cross-functional teams to turn product requirements into effective technical solutions.

What Youll Be Doing?

Develop and maintain scalable, high-quality full-stack web applications.
Build and maintain backend services using Node.js.
Develop modern, responsive frontend applications using React, Angular, or Vue.js.
Design and implement clean, maintainable, and scalable software solutions.
Participate in architectural and technical discussions and contribute to engineering best practices.
Collaborate closely with Product, Engineering, and other teams to deliver features from concept to production.
Take end-to-end ownership of assigned features and projects, ensuring high quality and timely delivery.
Troubleshoot, debug, and improve application performance, reliability, and scalability.
Contribute to continuous improvement of development processes, tools, and technical standards.