Senior Backend Developer

About The Position
Join Lusha, where culture isn't just a label-it's our DNA. We're dreamers, innovators, and learners, driven by simplicity, collaboration, and trust. At Lusha, every voice matters, and together, we shape a company we're proud of. Ready to be part of something truly unique? Join us and let's grow better together.
As a Lusha employee, you'll empower B2B sales professionals globally to unlock lucrative revenue opportunities and drive sustainable growth. With over 1 million users and a database of 200+ million entries, your contributions will directly impact our customers, revolutionizing the way they approach sales and positioning them for long-term success in a competitive marketplace. With 40,000 new signups benefiting from our dynamic platform each month, your role is crucial in continuing to enhance and expand our offerings. You'll help deliver exceptional value to our growing user community, ensuring they have the best tools at their disposal to succeed in a competitive marketplace.
We're looking for a Senior Backend Developer to join our team. Suppose you are a pro at solving real world problems for the backend and the UI for a product facing hundreds of thousands of users. In that case, you are a team player with great communications skills, have deep knowledge in web technologies, take ownership on what you do and eager to create an impact - continue reading cause this may very well be what you are looking for!
What will you be doing?
As a Senior Backend Developer you will be working within a squad with product managers, designers, business analysts and an incredible team of developers to design and develop solutions for products that are facing customers from all over the world. You will help other developers, establish best practices and ensure clean and efficient code.
You will be responsible for the production environments of the squad products that are used by all of our R&D.
How you'll shape the future of B2B sales:

• Be part of a squad, working in an agile environment, using mainly Node.js (Nest)
• Analyze requirements, design solutions, debate them with the team and implement them to bring impact.
• Work with BA to understand data impact and make decisions upon it
• Ensure quality by developing the corresponding tests
• Provide technical solutions for business needs
• Work on a product that is facing large amounts of end users
• Identify performance issues and design solutions
• Deploy using CI/CD to our microservices environment
• Innovate by sharing new techniques or technologies you've learnt

You are:

• A team player. Working in a team of engineers, debating, analyzing and creating the architecture of the solutions for the requirements presented by the product manager of the squad.
• Proactive problem solver. We work in a fast paced environment, with agile methodologies where you will be challenged every day to bring the best solution for complex problems.
• Results-driven. You have a can-do approach, a passion for learning new technologies, and a drive to exceed your goals.
• Communicative. As we are organized on squads you will daily interact with product managers, designers, analysts and engineers. This requires capabilities to explain in different ways the same solution to different people.
• Data-driven thinker. Follow up your deployments at production, measure the impact through BI reports and propose changes to be on a continuous improvement process.
• Learner. Bring innovation to the team by learning different technologies or techniques that can be applied at the team or company.
• Focused on impact. Do what you do with passion, think about the product and what's best for it.

Requirements
Here's what we need from you:

• 5+ years of experience as a Backend developer
• 5+ years of experience in Node.js / server-side technologies
• Experience writing tests (Unit, component, functional, end-to-end)
• Experience with SQL and NoSQL DB's (such as MySQL, Postgres, MongoDB)

Nice to Have:

• Experience with large-scale web systems
• Experience with RabbitMQ / Kafka
• Experience with Kubernetes & dockers
• Experience using React.js / Vue.js / Angular
• Experience with event sourcing

How will you innovate? How will you learn?
As a growth-stage company constantly evolving, you'll find opportunities to tackle unique projects and initiatives, all while being part of a thriving company that has evolved from its startup roots. You'll play a crucial role in our journey, with plenty of room to grow professionally. And as we move forward, you'll have a stake in our success, sharing in the rewards as we expand and innovate together, continuously learning along the way.
Why Lusha? It's simple
Established in 2016 by Assaf Eisenstein and Yoni Tserruya, Lusha's dream is to revolutionize the B2B sales landscape. With significant investments totaling $240 million, we've transitioned from our bootstrap origins to unicorn status with a value estimation of $1.5 billion. This journey reflects our unwavering commitment to innovation and excellence as we continuously set new standards in the industry. Trusted by industry giants like Zendesk, Google, and Yotpo, Lusha is the go-to resource for sales intelligence, having started as a profitable bootstrap company and survived solely on profits for 4.5 years. Join us and experience a career journey as distinct and dynamic as you are.