דרושים » תוכנה » Senior Backend Engineer - Collective

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.

Required Principal Backend Engineer, Platform Foundations
What Youll Do:
Youll be part of the group responsible for our main products. You will impact the work of developers in the group by designing, building and maintaining the core infrastructure of our solution and leading the research and development of new technologies as well as maintaining code standards and practices.
What does the day to day of Infrastructure Engineer look like:
You will be working on our core B2B platform that serves tens of thousands of customers, serving hundreds of terabytes in production. Our backend engineers are responsible for the entire data lifecycle - from our endless datatlakes, through choosing the right serving methods and databases, all the way to our api services.
Your role will include:
Design and implement scalable backend services and libraries that are reusable and maintainable, serving as the foundation for various applications across the company.
Build and maintain tools that streamline development workflows, enabling product teams to focus on delivering business value.
Define and promote best practices for code quality, performance, and reliability, ensuring healthy production environments and rapid development cycles.
Lead the adoption and integration of AI tools to assist in code generation, testing, documentation, and debugging, thereby accelerating development processes.
Perform proof-of-concepts (POCs) on emerging technologies, including AI agents and platforms, to assess their applicability and benefits to our development ecosystem.
Drive cross-team technical projects aimed at improving infrastructure scalability, reliability, and developer experience.
Analyze and resolve complex production issues, ensuring minimal downtime and optimal performance.
Contribute to the evolution of our system architecture, ensuring it supports rapid development and scaling needs.

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 Engineer to join our Billing Platform team.
Our Billing Platform is the backbone of every product we launch and every key deal we close. You will play a critical role in shaping the infrastructure that drives our billing processes, directly impacting our revenue and growth.
As we continue to scale and introduce new products, were looking for passionate engineers who are eager to take ownership of complex systems and make a significant impact.
If you're excited about designing and building robust, scalable systems, wed love for you to join us in shaping the future of our Billing infrastructure.
Why you should join us:
Youll be building scalable, high-performance services that handle massive volumes of data, ensuring the accuracy and reliability of our operations.
Youll tackle complex challenges around data scalability, performance, and system architecture, all while collaborating with cross-functional teams to deliver robust, impactful solutions.
What you'll be doing:
Design, build, and maintain scalable and resilient systems that handle high-volume data, while collaborating with teammates and individual contributors
Take ownership of projects, from concept to production, ensuring the highest quality
Work on data-driven initiatives that improve system performance, efficiency, and billing accuracy
Work with Product Managers to define features and scope, guiding technical decisions and trade-offs, to align with company goals.
Collaborate in an environment involving various stakeholders within the company
Help foster best practices and mentor team members to maintain a high standard of engineering excellence.

our company has been redefining computer graphics, PC gaming, and accelerated computing for more than 25 years. Its an outstanding legacy of innovation thats motivated by extraordinary technology and amazing people. we are looking for an experienced Python Backend Developer to join our Air team the Digital Twin for Data Center Simulation web application.
As a Backend Python Developer, you will be responsible for designing, developing, and maintaining our web applications. This position offers the opportunity to have a real impact in an influential, technology-focused company impacting product lines that power the most advanced data centers in the world. We have crafted a team of outstanding people, whose mission is to push the frontiers of what is possible today and define the platform for the future of data center simulation and design.
What you'll be doing:
Collaborate with the development team to design and develop web applications using Python and Django framework.
Write clean, efficient, and maintainable code that adheres to industry standards.
Participate in code reviews and provide constructive feedback to ensure code quality.
Perform unit testing and debugging to identify and fix issues.
Work closely with product manager and architect teams to gather requirements, translate them into technical solutions, and deliver high-quality and scalable solutions.

We are looking for a Staff Data Engineer to join our Platform group as part of the Data Infrastructure team. This is a senior individual contributor role for someone who combines deep technical expertise with a passion for building scalable, high-impact data infrastructure.
In this role, you will take ownership of designing, implementing, and evolving the data systems that power data orchestration, distributed storage, and streaming capabilities - with a focus on architecture, reliability, and performance. Youll collaborate across teams, influence engineering best practices, and help scale our infrastructure to support growing data needs across the organization.

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.

As a Backend Engineer Tel Aviv, you will have the opportunity to build innovative products that affect our customers' lives directly, act as a developer on mission-critical systems, and build top-notch consumer-facing applications serving millions of users using the most advanced technologies.

We are looking for a highly motivated, experienced Software Engineer to join our R&D team to build our products and services to support new initiatives at running from the Tel Aviv office.

You Will:

Develop Scalable Systems: Build performant and scalable systems capable of serving over a million monthly customers, all while optimizing for minimal computing requirements.
Deliver Reliable Financial Services: Design, build, and maintain highly available financial services with a strong focus on data integrity and security. Be a key contributor to developing the next generation of products from the ground up.
Lead and Mentor: Serve as the technical lead for your team, mentoring colleagues, driving cross-team initiatives, and facilitating complex design discussions.
Focus on Distributed Systems: Design and implement resilient distributed systems that meet stringent performance and data integrity requirements.
Drive Payment Solutions: Take ownership of payment systems, collaborating with multiple providers and gaining a deep understanding of the global financial ecosystem.

Required Senior ML Backend Engineer
Tel Aviv
As a Senior Machine Learning Backend Engineer, you'll architect and build the high-performance backend systems that power our AI at massive scale, craft real-time ML serving 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:
ML Serving Architecture: Design and implement high-performance inference APIs and model serving backends using Java & Python.
Model Lifecycle Management: Build systems for model versioning, A/B testing, canary deployments, and automated rollbacks.
Integration Platform: Create robust APIs and SDKs that enable product teams to seamlessly integrate AI capabilities.
Observability & Monitoring: Build comprehensive metrics, logging, and tracing systems for ML workloads.
Cross-team Leadership: Mentor engineers & researchers, drive technical decisions, and influence platform architecture across the organization.