About Rocketlane

Rocketlane is building world-class software for customer onboarding, professional services, and modern service delivery teams.

We care deeply about product craft. Our engineers work closely with Product and Design to solve complex problems, build delightful user experiences, and create systems that remain fast and reliable as we scale.

If you enjoy owning a problem end-to-end — from the database and APIs all the way to the interactions a customer sees in the browser — this role is for you.

What will you do?

As a Lead Full Stack Engineer, you will own meaningful parts of the Rocketlane product from design through production.

You will:

• Design and build features end-to-end across our React frontend and Java backend.

• Work closely with Product and Design to turn customer problems into simple, thoughtful product experiences.

• Build polished, performant user experiences for complex SaaS workflows.

• Design clean APIs, data models, and backend services that can scale as our customers and usage grow.

• Solve challenging product problems involving real-time collaboration, rich interactive experiences, workflow automation, large datasets, and highly configurable enterprise use cases.

• Make thoughtful architectural decisions across frontend, backend, database, caching, and asynchronous processing.

• Own the performance and reliability of what you build — from browser performance through API latency and database queries.

• Debug complex issues across the entire stack rather than stopping at service boundaries.

• Write maintainable, well-tested code and raise the quality bar through thoughtful code reviews.

• Identify technical debt and proactively improve architecture, developer experience, observability, and engineering productivity.

• Mentor engineers and help the team make better technical decisions.

• Take ownership of features in production and work with the team to diagnose and resolve issues quickly.

• Participate actively in engineering design discussions and influence how Rocketlane's technology evolves.

You should apply if

Frontend

You are comfortable with:

• React and modern JavaScript/TypeScript

• SPA architecture and component design

• HTML and CSS

• State management and complex client-side application flows

• Browser fundamentals such as caching, storage, networking, and rendering

• Building reusable components and maintainable frontend architecture

• Frontend performance profiling and optimization

• Building responsive and high-quality product experiences

Experience with real-time applications, WebSockets, large data-heavy interfaces, rich editors, or spreadsheet-like experiences is a plus.

Backend

You have strong fundamentals in:

• Java and Spring or similar backend frameworks

• HTTP and REST API design

• PostgreSQL or other relational databases

• Data modelling and query performance

• Redis and caching

• Asynchronous processing and message brokers

• Designing scalable and resilient backend services

• Performance optimization

• Debugging and root-cause analysis

• Logging, monitoring, and production troubleshooting

Engineering fundamentals

Beyond knowing frameworks, we expect you to understand why systems behave the way they do.

You should be comfortable discussing topics such as:

• API and system design

• Database transactions and concurrency

• Caching strategies

• Distributed systems fundamentals

• Failure handling and resiliency

• Performance and scalability

• Security and authorization

• Testing strategy

• Production observability

• Clean code and maintainable architecture

What we're really looking for

We're not looking for someone who is 50% frontend and 50% backend but shallow in both.

We're looking for an engineer who has strong depth in at least one part of the stack, solid engineering fundamentals across the other, and the ability to independently take a customer problem from:

Problem → Design → Architecture → Backend → Frontend → Production

You should be someone who asks:

“What is the right solution for the customer and the product?”

rather than:

“Is this a frontend problem or a backend problem?”

You'll thrive here if

• You enjoy owning problems rather than just completing tickets.

• You care about both how a product works and how it feels to use.

• You can move quickly without compromising engineering fundamentals.

• You are comfortable working through ambiguity and breaking large problems into smaller ones.

• You enjoy collaborating directly with Product and Design.

• You are willing to dive into unfamiliar parts of the stack when the problem requires it.

• You care about performance, reliability, and maintainability — not just getting something to work.

• You enjoy mentoring other engineers while remaining deeply hands-on.

• You like learning, experimenting, and continuously improving the way software is built.

Nice to have

• Experience building B2B SaaS products

• Experience in a startup or high-growth product company

• AWS experience

• Docker/containerization experience

• Experience with CI/CD pipelines

• Experience building real-time collaborative applications

• Experience with WebSockets

• Experience working with high-volume APIs or large datasets

• Experience with Playwright, Cypress, or similar automation frameworks

• Experience designing enterprise-grade integrations

• Exposure to AI-assisted product development or AI-powered product experiences

Why Rocketlane?

Build challenging product experiences

You'll work on problems that go well beyond basic CRUD applications — collaborative workflows, highly interactive interfaces, automation, data-heavy experiences, enterprise integrations, and increasingly AI-powered experiences.

Own meaningful parts of the product

Engineers at Rocketlane are expected to understand the problem, contribute to the solution, build it, ship it, and learn from how customers use it.

Work across boundaries

You won't be constrained by artificial frontend/backend boundaries. If solving the problem requires changing the UI, API, data model, cache, or infrastructure, you'll have the opportunity to work across all of them.

Raise your engineering bar

You'll work alongside engineers, designers, and product leaders who care deeply about building a world-class SaaS product.

And most importantly, you'll have the opportunity to look at something customers use every day and say:

“I built that.”