Full Stack Engineer

Who we are

Founded in 2016, Lusha grew from a bootstrapped startup to a $1.5B unicorn, backed by $245M in investments and trusted by sales teams at Google, Zendesk, and Yotpo. 

Lusha is an AI-powered sales intelligence platform, changing the B2B sales experience with a new approach called Sales Streaming. Allowing salespeople to spend most of their time selling instead of wasting time and effort on manual prospecting.

With 1.5M+ users, 200M+ contacts, and 40K new signups every month, we’re the engine behind modern GTM teams. And we’re just getting started.

Where does this role fit in our vision?

Every role at our company is designed with a clear purpose—to integrate collective efforts into our shared success, functioning as pieces of a collective brain. You’ll be joining the team behind some of Lusha’s most performance-critical backend services—the ones that need to stay fast, reliable, and rock-solid under heavy load. Your work will help us scale smoothly as usage grows, and make sure our systems stay resilient and observable. This isn’t a “just write the code” type of role—we’re looking for someone who takes real ownership, cares about how their code behaves in prod, and isn’t afraid to get their hands dirty when things go sideways.

What will you be responsible for?

Designing and building complex flows in our event-driven architecture, from rough idea to running in production

Writing high-quality, maintainable code that stands up under heavy load

Collaborating closely with teammates, product managers, and engineers from other teams to ship meaningful features

Contributing to the stability and observability of our systems — we own what we build

Taking part in design reviews, architecture discussions, and constantly looking for ways to improve how we work and build

Staying hands-on with production: monitoring, debugging, and optimizing the real-world behavior of your services

Bringing new ideas to the table and helping us push the boundaries of performance, reliability, and developer experience

Here’s what we need from you:

5+ years of hands-on development experience, building backend services that run in production

Solid experience with event-driven microservices—you know how to design around queues, topics, and streaming patterns

Strong understanding of databases, both relational and non-relational (you’ve modeled, queried, and optimized for performance)

Comfortable owning features end-to-end—from design to production

Experience working in cross-functional teams, collaborating with engineers, product, and stakeholders

Node.js and NestJS expertise

Familiarity with React on the frontend

Hands-on experience with Kafka, RabbitMQ, PostgreSQL, MongoDB

Exposure to event sourcing, Kubernetes, and distributed system monitoring tools (e.g. Prometheus, Grafana, ELK)

Background working on high-throughput or data-intensive systems

AI-savvy: comfortable working with AI tools and staying ahead of emerging trends

We’re dreamers, innovators, and learners, driven by simplicity, collaboration, and trust.

At Lusha, your work matters. Your voice is heard. And your growth is part of our growth.

Ready to join us? Let’s build the future of sales, together.