דרושים » תוכנה » Senior Backend Developer Data & AI Team

As we establish our core development team in Israel, we are in search of a seasoned Backend Developer to produce scalable FinTech software solutions. As a senior developer, it is hard to overstate the impact youll have on our product and company trajectory.

What you will do

Collaborate with product managers and other software engineers to build groundbreaking user-centric products that change peoples lives.

Write reusable, testable, and efficient code.

Implement new features and user interfaces, keeping mobile-first always on top of your mind.

Provide tech guidance to other team members.

Help the team succeed as a whole.

Have a chance to influence the architecture and design of the product.

Take part in architectural decisions and discussions.

Solve complex problems, create object models, define APIs, build web services, and more.

Work directly with others (engineers and other internal stakeholders) to develop a solid understanding of the business application and requirements for which the application is being designed.

As a Backend Developer, youll be building powerful features that push the boundaries of what technology can do in global trade. You'll work alongside a talented and diverse team of engineers, product minds, QA specialists, and domain expertseach bringing deep knowledge and fresh perspectives. In this role, youll take full ownership of complex backend systems, designing and developing robust server-side architecture from start to finish. We value independence, accountability, and the drive to turn ambitious ideas into production-ready reality.

Roles & Responsibilities:
Write scalable server-side code using Python.
Work in AWS cloud environment.
Implement and maintain RESTful APIs for seamless communication between FE and BE.
Work with rational/nosql/objectstores such as MongoDB, PostgreSQL, Neptune, s3 to store and retrieve data.
Write clean, readable, quality and testable code writing.
Test and debug applications to ensure high quality and performance.
Review pull requests to ensure high quality and maintainable solutions.
Seeing through a project from conception to delivery.
Follow-up on new evolutions of technology and take initiative to understand how the development will look tomorrow and help us get there.

Were looking for a senior-level backend engineer to join our growing Engineering team in TLV.

This role will require you to bring features to the finish line while collaborating closely with other developers, as well as with the Product, QA, Data, and Machine Learning teamsall with the goal of delivering a seamless, joyful experience for our customers.

In this role youll:

Help build our products using microservices written in Typescript (using NestJS) and Ruby on Rails running over Kubernetes.

Leverage our in-house autonomous tools to manage all development flow, from setting up our development environment to creating git branches and deploying services to production.

Collaborate closely with the Product team, in a self-sufficient squad to achieve the squads OKRs.

Be the owner of your domain to ensure code quality, performance, and scalability of our products.

Coach and mentor other developers and help them elevate their skills.

As part of the Data Infrastructure team, youll help build Lemonades data platform for our growing stack of products, customers, and microservices.

Our platform ingests and processes data from operational databases, telematics, and diverse product sources. Youll build robust backend services and data processing pipelines, leveraging state-of-the-art frameworks and cloud-native solutions, all while collaborating with Data Engineers, ML Engineers, Analysts, and Product Managers to turn real-world needs into resilient systems.

In this role youll:

Design & Develop Backend Services: Lead the design and implementation of backend systems and APIs for our distributed data platform

Build Data Ingestion & Processing: Architect and develop scalable ingestion pipelines with streaming ETL, Change Data Capture, and large-scale batch and stream processing

Own Data Platform Infrastructure: Implement and optimize scheduling, workflow orchestration, and data governance tools to support high-quality, compliant data flows

Drive Engineering Standards: Establish and promote backend best practices, ensuring high reliability, code quality, and maintainability across the team

Cross-functional Collaboration: Work closely with data engineers, ML engineers, product managers, and analysts to translate business needs into scalable backend systems

Mentorship: Share your backend and infrastructure expertise by collaborating, reviewing, and mentoring fellow engineers.

We are looking for an experienced Senior Backend Engineer to join our fast-growing company during a breakthrough stage, as we build our dream team of the most passionate and professional people in the industry. Our team thinks differently and quickly, delivering high-quality and unique code while using the latest technologies and frameworks - all without forgetting to enjoy the ride!
What Youll Do?
Take part in all development aspects, from design to production, of a wide hybrid/cloud-native product
Write high-quality, testable, and efficient code using Python and Go
Initiate and promote new ideas for continuous improvement of product functionality
Work closely with other team members, as well as mentoring new team members.

Youll join a compact, high-impact group inside the Platform unit, working shoulder-to-shoulder with engineers, product, support, CSMs, and technical writers to ship features, refine standards, and engage our rapidly growing community of Web3 and fintech innovators.

Who You Are
Youre a builder at heart: part developer, part product thinker. Youve shipped code, written docs that move metrics, and solved real user pain. You want ownership: to drive the roadmap, build tools, and craft content that developers actually use.
You treat DevRel like product work: every tutorial, guide, and sample app is a feature to ship and improve. You're comfortable acting solo, but you think big and work cross-functionally to remove friction and scale impact.
Above all, you care about outcomes: unblocked devs, faster onboarding, and clear signals that your work drives adoption.
What Youll Do
Own our developer-facing content end to end. From roadmap to release. Manage documentation, tutorials, and sample code as living, version-controlled products: prioritize their backlog, ship high-quality updates, and track impact with the same KPIs we apply to production features. Author clear guides and runnable examples while partnering closely with our technical writing team to ensure every page is accurate, consistent, and user-centric.
Build and maintain fully runnable demo apps. Ship reference projects in Node.js, Python, Go, or Java (complete with IaC, automated tests, and CI/CD) so customers can clone, deploy, and learn by doing.
Be the voice of our developer customers. Run customer interviews, shadow integrations, and mine support tickets to uncover real-world pain pointsthen translate those insights into sharper docs, richer tutorials, and higher-impact sample code that erase friction.
Design friction-free onboarding. Craft step-by-step guides that take developers from API key issued to their first signed transaction in minutes, complete with copy-pastable snippets, and screenshots.
Publish deep-dive concept content. Demystify policies, EVM vs. UTXO models, Solana flows, security best practices, and more. Youll turn complex ideas into digestible articles that shorten the learning curve.
Create content for developer workshops & events. Develop slide decks, hands-on labs, and live-coding assets for webinars, hackathons, and conference sessions, partnering with DevRel to deliver memorable, high-value experiences.
Seed and grow the developer community. Launch and moderate Discord/Stack Overflow channels, run live-coding office hours, showcase community projects, and turn satisfied users into peer-to-peer advocates.
Instrument, measure, iterate. Wire up analytics to track engagement, search success, and GitHub stars, using data to drive continuous improvement and prove ROI.

Were looking for a Senior Backend Infrastructure Engineer (or Tech Lead, for the right candidate) to join our core infrastructure team. This role is all about building and evolving scalable, high-performance backend systems that serve as the foundation for all our product engineering teams.
Youll be responsible for designing and developing distributed systems, owning critical backend infrastructure services, and working closely with architects, DevOps, and product engineers to ensure our platform is reliable, efficient, and future-proof.
Why join us?
we are one of the worlds fastest-growing fintech companies. We free finance professionals to lead by modernizing the entire payables operation. We are a well-funded, late-stage start-up backed by high-profile investors. Our 2021 Series F funding round raised $270 million, valuing us at over $8.3 billion. With total funding of just over $550 million, and with more than 5000 global customers, we are one of the most valuable private fintech companies in the world.
At our company, we pride ourselves on our collaborative culture, the quality of our product and the capabilities of our people. our workers are passionate about the work they do, and keen to get the job done. our company offers competitive benefits, a flexible workplace, career coaching, and an environment where diverse individuals can thrive and make an impact. Our culture ensures everyone checks their egos at the door and stands ready to reach for success together.
Founded in Israel in 2010, we are a global business headquartered in the San Francisco Bay Area (Foster City) with offices in Tel Aviv, Plano, Toronto, Vancouver, London, Amsterdam and Tbilisi.
In this role, you will be responsible for:
Designing, developing, and maintaining scalable infrastructure services and middleware in a distributed microservices environment.
Leading cross-team backend infrastructure initiatives that impact the entire R&D organization.
Building robust systems that support our product teams with high availability, observability, and fault tolerance.
Partnering closely with architects, DevOps, and backend engineers to define and implement best practices across the stack.
Driving performance improvements and architectural evolution with a long-term vision in mind.
Proactively identifying technical gaps and areas for optimization across our backend infrastructure.

As a Senior User Data Engineer in the Demand group in our Tel Aviv office youll play a vital role in developing one of the largest real time big data operations in the world to support over 40TB of new data every day.
Our Tech Stack: Java, JS, TS, Python, Reactive, Spark, Kafka, Hadoop, Cassandra, Vertica, ES, MySQL, Memcached, HDFS, Iceberg, BigQuery, Druid, Kusto, Docker, K8S, Linux, Prometheus, Grafana, Airflow
Gen AI: Cursor, Junie, GitHub Copilot, Langfuse and much more
How youll make an impact:
As a Senior Software Engineer, youll bring value by:
Design, develop, and address scalability challenges in our user data pipeline and identity graph, ensuring efficient handling of high-throughput, high-performance systems
Have end to end ownership: Design, build, ship, measure and maintain our frontend and backend services
Collaborate with the brightest software engineers team members
Influence directly on the way billions of people discover the internet
Develop at unimaginable scale, serving thousands of requests per second
Work on innovative projects that are the next growth engines for our company
Here are some of the things software developers in our group did in the last several months:
A unique data pipeline for processing and managing user data signals
Driving our companys data advantage by leveraging real-time user signals to uncover intent and boost key business performance metrics
Develop a complete user identities graph and find deterministic and probabilistic methods to enrich it
An algorithmic model to predict the performance potential of a specific audience
Infrastructure to create unique audiences for advertisers based on various signals (behavioral, contextual, etc)
An A/B tests system to explore variations and experiments over audiences
Understand and use big data algorithms to estimate key business metrics over billions of impressions
Build user interface using React that serve thousands of users.

we are a leading SaaS and FinTech platform transforming how real estate investment firms manage their capital, investors, and operations. Trusted by 800+ GPs, owners/operators, and investment firms globally, we help teams streamline the full lifecycle of investment management.
But were more than just software. Were a team of bold thinkers, innovators, and real estate enthusiasts who believe complex processes should feel simple. Our platform combines modern technology with expert services, helping our customers raise more capital, deliver a better investor experience, and scale their businesses smarter.
we are backed by top-tier VCs like Insight Partners and Qumra Capital, and were growing fast. Weve been named one of Globes Most Promising Startups, recognized as a Best Start-Up Companies to Work For by Duns 100, and one of Business Insiders Hottest PropTech Startups.
Life at our company
We are a fast-growing and dynamic startup with 180+ employees, mostly in Tel Aviv. We value collaboration, ownership, and innovative thinking. Were looking for passionate, positive and motivated people to join our team.
About the Role
As a Senior Backend Engineer at our company, youll become a valuable member of an innovative and fast-growing department, working in a truly Agile environment utilizing cutting-edge technologies. Youll be in charge of planning and developing new features and services, contributing to our code infrastructure, and improving our SaaS architecture for the scale that lies ahead. Whether you enjoy writing complex business logic, optimizing the DB to run heavy queries in no time, or integrating to a variety of 3rd party services, we encourage you to own it all the way from conception to post-production.
Our Stack: Node.js, NestJS, React, AWS, MySQL, Postgres, RabbitMQ, Lambda, Kubernetes, Docker.

Required Senior Backend Engineer
Tel Aviv
As a Senior Backend Engineer, you'll dive into complex technical challenges, craft innovative solutions, and play a pivotal role in our mission to revolutionize the way companies understand their customer interactions. We're seeking a Java professional who can leverage their deep knowledge to drive our backend development to new heights.
You will be responsible for:
System Design and Development: Lead the design and implementation of backend services and APIs using Java technologies, ensuring scalability, reliability, and performance.
Problem-Solving: Analyze and solve complex technical challenges across the stack, from architecture to implementation.
Collaboration: Work closely with Product Managers, UX designers, and Frontend Engineers to deliver features that meet user needs and business goals.
Ownership: Take ownership of features throughout their lifecycle, from initial concept to deployment and maintenance.