Here at Lusha, we power sales with data. Over 1.5M users and teams at Google, Zendesk, and Yotpo use our platform to find verified contacts, spot real-time buying signals, and automate workflows with 200M+ records.
As a Senior Backend Engineer, you’ll build the systems that keep Lusha fast, scalable, and reliable — powering data for millions of users across the world. You’ll own end-to-end solutions within a cross-functional squad, designing and delivering backend services that touch every part of our customer experience.
If you love solving complex challenges at scale, writing clean, testable code, and shaping the architecture behind high-impact products — this one’s for you.
What You’ll Actually Do
- Work in an agile squad alongside product managers, designers, analysts, and world-class engineers.
- Design, develop, and optimize backend services using Node.js (Nest) within a modern microservices environment.
- Collaborate on architecture decisions, analyze data impact, and own your code from design to deployment.
- Ensure reliability through testing (unit, component, end-to-end) and continuous monitoring in production.
- Identify performance bottlenecks and drive improvements that scale to hundreds of thousands of users.
- Deploy via CI/CD, experiment with new technologies, and help set best practices for clean, efficient code.
Requirements
- 5+ years of experience as a backend engineer.
- Deep expertise with Node.js and modern server-side frameworks.
- Proven experience with SQL and NoSQL databases (MySQL, Postgres, MongoDB).
- Hands-on experience writing and maintaining automated tests.
- Strong communication skills and a collaborative, product-oriented mindset.
Nice to Have:
- Experience with large-scale, data-intensive systems.
- Familiarity with Kafka / RabbitMQ, Docker / Kubernetes, or event-driven architectures.
- Some frontend experience (React, Vue, Angular) — always a plus.
Why Lusha
At Lusha, culture isn’t just a slogan — it’s how we work. We move fast, stay curious, and own what we build. Every engineer has real impact, every idea counts, and every deployment helps millions of professionals sell smarter.
We’re dreamers, doers, and learners who believe great products start with great people. If you’re looking to build meaningful systems, grow alongside incredible peers, and make your mark on a platform used worldwide — you’ll feel right at home here.
Top Skills
What We Do
At Lusha, we're building a future where every B2B sales professional is equipped with the data they need to succeed. Founded in 2016 by Assaf Eisenstein and Yoni Tserruya, our mission is to organize the world's business data while empowering our customers to uncover relevant revenue and growth opportunities. We're proudly GDPR compliant and maintain a globally compliant database.
With a staggering reach of 1 million users and a database boasting over 200 million entries, including 45 million direct contacts in North America, 50 million enterprise and SMB business profiles, and 21 million GDPR-compliant European contacts, Lusha stands as an indispensable resource in the B2B landscape. Our community has surged to over 670,000 sales professionals and 223,000 sales organizations, proudly showcasing partners such as Zendesk, Google, and Yotpo.
With significant investments totaling $240 million, we've transitioned from our bootstrap origins to unicorn status with a value estimation of $1.5 billion. Starting as a profitable bootstrap company and surviving solely on profits for 4.5 years, our journey is a testament to our commitment to innovation and the iconic brand we've become, continuously setting new standards in the industry.
In total, Lusha has 300 employees globally in two sites—Tel Aviv and Boston. Our teams are the driving force behind everything we do, dedicated not only to meeting but exceeding our customers' needs. We understand the importance of connection, fostering a collaborative environment where every employee contributes to our success.
Your voice matters, your ideas count, and together, we'll thrive.
Join us on this journey to revolutionize B2B sales. Let's grow better together.
Why Work With Us
Welcome to Lusha, where culture isn't a label—it's our DNA. Dream-driven creators, user-centric innovators, and relentless learners, we thrive on simplicity, collaboration, and trust.
Join us in shaping a company we're proud of—one where every voice matters and dreams fuel our journey.
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