דרושים » תוכנה » Senior Backend Engineer

Required Senior Software Engineer
About the Fraud Prevention Squad:
The Fraud Prevention Squad is a highly skilled and collaborative team of engineers, data scientists, and analysts working to develop cutting-edge fraud detection and prevention systems. The team is passionate about building secure financial products and fosters a culture of learning and mentorship, where everyone is encouraged to share their expertise and grow their skills.
What Youll Do:
As a Senior Backend Engineer on our Fraud Prevention Squad, you will play a key role in ensuring the integrity and security of our product offerings. Your main responsibility will be to design, build, and enhance advanced backend systems to detect, prevent, and manage fraudulent activities across all our products. You will collaborate with a multidisciplinary team of engineers, data scientists, and data analysts to develop effective fraud prevention strategies and tools. Additionally, you will continuously improve existing technologies, integrate fraud prevention measures seamlessly into our products, and provide mentorship to junior engineers.
Key Responsibilities:
Contribute to the development of our Fraud Prevention Platform, ensuring high-quality products and services.
Solve complex architectural problems, utilizing your deep understanding of system architecture.
Collaborate with other team members, sharing your expertise and facilitating a culture of learning.
Maintain our system architecture, ensuring smooth operation and quality user experience.
Be an advocate for clean, efficient, and maintainable code.
Provide mentorship to junior team members, nurturing their growth and development.

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 seeking an experienced Backend Developer with a minimum of 5-6 years of hands-on experience to join our development team. As a Backend Developer, you will be responsible for designing, developing, and maintaining robust solutions for our suite of products, as part of the team responsible for the heart of our technology stack. You will work with cutting-edge technologies, including Node.js, Nest.js, TypeScript, PostgreSQL, and AWS services.

Responsibilities:
Design, develop, and deploy scalable and high-performance backend solutions to support our web and mobile applications.
Write clean, maintainable, and well-documented code in TypeScript, following best practices and design patterns.
Implement and maintain database schemas, queries, and optimizations using PostgreSQL.
Perform code reviews, troubleshoot issues, and provide technical support to ensure the reliability and performance of backend systems.
Collaborate closely with the product team, FE developers, QA engineers, and other stakeholders to understand requirements and translate them into technical specifications and implementation plans.

We are looking for an experienced, passionate Senior Backend Engineer (Platform Team) to join our growing TLV R&D location. You'll be joining the backend group to help us expand our infrastructure and add new features to the company's core product.

As a Senior Backend Engineer in our platform team, You'll take part in our effort to improve our product, productivity, security and the ability to scale. Opportunity to make a significant impact by driving the technical direction of a high-growth company.
As a Senior Backend Engineer, you will:
Develop and maintain policies and procedures for software development, deployment, and maintenance. Monitor cloud environments using infrastructure as code methodologies.
Work closely with other teams, such as development and operations, to ensure that our software applications meet the needs of the organization.
Participate actively in code reviews to uphold high standards of quality and maintainability in software development.
Work collaboratively with product teams to design and implement new cloud services and workflows, contributing to the continuous improvement of our platform.
Stay up-to-date with emerging trends and technologies in Cloud, and assess their potential impact on our organization.

We're looking for a skilled Senior Backend Engineer to join our team and contribute to our Cortex Cloud platform.
As a Senior Backend Engineer, you'll have a high-impact role in shaping the future of our code security products. Beyond building robust and scalable backend features, you'll help drive performance, reliability, and innovation across our systems. Our team leads the way in owning both the departments core infrastructure and Developer Experience (DevEx), empowering the entire engineering organization with powerful internal platforms and tooling. If you're excited by technical challenges, meaningful ownership, and making life easier for developers this is the place for you.
Your Impact:
Feature Development: Design, build, and maintain robust backend services using TypeScript/Node.js. Take full ownership of complex, cross-system features from initial requirements through architecture, implementation, and deployment.
Build and Optimize Scalable Systems: Ensure performance, reliability, and cost-efficiency across distributed systems through thoughtful design, deep observability, and continuous optimization.
Platform Engineering & DevEx: Drive platform engineering initiatives by developing the department infrastructure and shared tooling that boost scalability, reliability, and the developer experience across the department.
Own Core Infrastructure: Design, operate, and evolve the departments infrastructure stack including BigQuery, MongoDB, Redis, and Argo Workflows using cloud-native technologies like Terraform, Kubernetes, and Helm.

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.

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.

Were looking for a Senior Software Engineer to join our ML Data Group. In this role, youll be at the forefront of building our next-generation data platformfrom the ground up. Youll play a key role in shaping our new data offerings and evolving our existing Feature Store, a core component that helps machine learning teams access and manage large-scale, high-quality datasets with ease and speed.Youll work in a fast-paced, collaborative environment alongside other top-tier engineers and data experts. This is a high-impact opportunity to define architecture, implement best practices, and deliver production-grade solutions that will accelerate ML experimentation and deployment at scale.
As a Senior Software Engineer you will...
Design and implement our new ML data offerings from scratch
Improve and scale the existing Feature Store Data Pipelines for performance, reliability, and usability
Develop efficient, scalable data storage solutions for datasets and features
Build robust APIs and services to manage the full lifecycle of datasets and featuresincluding versioning and access control
Ensure data integrity, security, and validation across our platforms
Define and uphold engineering best practices in data management and software development
Collaborate cross-functionally with product, ML, and platform teams
Mentor junior engineers and help shape our engineering culture.

We are looking for an experienced, passionate Senior Backend Engineer to join our growing TLV R&D location. You'll be joining the backend group to help us expand our backend system and add new features to the company's core product.
As a Senior Backend Engineer, you'll play a crucial role in driving the backend architecture and technical strategies that underpin our success. This is a great Opportunity to make a significant impact by driving the technical direction of a high-growth company.

As a Senior Backend Engineer, you will:
Build backend system from the ground up.
Design and collaborate with the engineering team to build architecture and system design for new products.
Build internal products and integrate with external APIs.
Play a role in building, expanding, testing and releasing of a product helping thousands happy customers.

Required Senior Backend Scala Developer
The opportunity
Join our team working on an advanced ad-serving platform that powers millions of real-time interactions every second. As a Senior Backend Developer, youll play a key role in designing, developing, and maintaining a high-performance system that supports critical functionalities like targeting, attribution, budget management, and data pipelines for machine learning and reporting.Youll be expected to lead impactful projects, drive improvements in performance, scalability, and system reliability, and help shape solutions that directly influence the success of a globally recognized platform. We value bottom-up initiatives and encourage team members to bring their ideas to the table, fostering innovation and collaboration.
Why You'll Love This Role:
Take ownership of major projects and core features with significant business impact.
Work alongside skilled engineers in a fast-paced, high-scale environment.
Tackle challenging technical problems using cutting-edge tools like Kafka and Aerospike.
What you'll be doing
Design, develop, and monitor new features for the platform, including components supporting targeting, attribution, and budget management.
Maintain and optimize the performance of critical backend systems.
Refactor and improve legacy code to ensure scalability and efficiency.
Lead efforts to guarantee system reliability and low latency in a high-concurrency environment.
Collaborate with peers and across teams to deliver high-quality, production-ready solutions.