We are looking for a senior back-end developer, who is an original thinker, passionate, hard-worker and great executioner, to join our fast growing B2C company. Our back-end developers implement API and smart algorithms which are used by our applications. We are a data-driven, B2C company, and the job of the back-end developer is to make our experience come true.
Responsibilities:
Ensure the performance, quality and the efficiency of the server code.
Identify and correct bottlenecks and fix bugs.
Work closely with client developers to create well-implemented products.
Work in a dynamic environment requiring quick decision making within tight schedules.

Required Senior Back-End Developer
Description
About Us
We are bootstrapped and has been profitable since day one. We built one of the most efficient programmatic acquisition engines on the planet: processing billions of ad decisions a day, generating terabytes of live behavioral data, and turning it into margins most SaaS companies would kill for.
At the core of that engine is a team of data scientists and ML engineers running tens of billions of sub-second predictions a day, deciding in milliseconds which impression is worth buying and what its worth.
Now were taking everything weve learned about how people move through the web and putting it into our most innovative consumer product yet: Ace AI, an AI-native browser already reaching millions of people, built to simplify and improve everyday online life with the help of AI.
This is a rare opportunity: a category that hasnt meaningfully changed in over a decade, and a profitable company with the data and the acquisition engine to win it on its own terms.
Come build it with us.
What Youll Do:
Own backend features end-to-end, from technical design to production monitoring.
Design, build, and scale backend services and APIs, primarily in Python.
Own core flows such as authentication, subscriptions, and the services behind our AI features.
Keep production fast and reliable, working closely with product, AI, and data teams.
Build AI-native: work with Cursor and Claude Code agents every day and help make our codebase agent-friendly.

Required Senior Back-End Developer
Who are we?
We are the agentic layer for enterprise systems where teams and metadata agents plan, change, and govern systems with speed and confidence.
What will you do?
As a Senior Back-End Developer, youll play a critical role in shaping the foundation of our innovative platform. Working alongside a talented team in Tel Aviv, you will:
Design and develop core products and features that empower our users to achieve their goals.
Partner closely with product managers, front-end developers, and other stakeholders to deliver scalable and impactful solutions.
Participate in all stages of the product development lifecycle, from concept and design to deployment and maintenance.
Take initiative in solving complex technical challenges while contributing to the strategic direction of our technology stack.

As a Senior Back End Engineer, you will play a crucial role in designing, building, and optimizing the core backend systems that power our advanced AI-driven security tools. Your work will be instrumental in ensuring that our platforms are scalable, secure, and efficient, enabling our AI engines to process vast amounts of data, assess risks, and deliver actionable insights.


What you will do:
Design, develop, and maintain robust and scalable backend systems to support our Security's AI-driven security tools.
Collaborate with the AI, front-end, and product teams to integrate backend services with AI models and data processing pipelines.
Optimize the performance and reliability of backend services, ensuring low latency and high availability.
Implement and manage APIs that facilitate seamless integration with external systems and internal components.
Ensure that backend architecture adheres to security best practices, safeguarding sensitive data and maintaining compliance with industry standards.
Monitor, debug, and resolve any issues in the production environment to maintain system health and uptime.

We are looking for an exceptional and passionate Back-End Developer to join our team. This role involves designing and implementing the backbone infrastructure and APIs for our applications, ensuring a great user experience.
Responsibilities:
Be responsible for the products architecture and maintain its performance in challenging circumstances
Maintain high standards of software quality by establishing best practices
Collaborate with various stakeholders to plan, design, develop, test and maintain extraordinary features
Translating requirements into high-quality code
Seeing through a project from conception to finished product
Collaborating with a team of skilled developers to develop high-traffic, cloud-based applications
Participating in code reviews to maintain code quality and sharing best practices with the team
Provide guidance and mentorship to junior developers, promoting continuous learning and improvement within the team

we are looking for a Back End Developer.
What You'll Do:
Your Mission. Design, develop and execute features from sketch to production that will have a huge business impact on the core products at Carliba
High Impact. Ramp up the technical level of your team & cross-backend engineers
Own your mission. Develop high-priority projects to make the most scalable, high-velocity products on the market.
Lead. As part of a team developing with a complex micro-services backend architecture, you'll work with the team and lead us towards solutions for large-scale challenges.
Dream Team. You'll join an agile dev squad of engineers who are all highly talented, very collaborative and excited to hear your opinion.
You will report to the Squad Engineering Manager.

we are looking for a Full-Stack Developer to play a key role in building and optimizing our in-house Video Management System (VMS) and the cutting-edge video player it powers, serving both B2B and B2C products. As part of a dedicated and passionate team, you'll build scalable backend services and high-performance frontend experiences that drive video delivery, user engagement, and monetization - working across the whole stack, from the APIs and tooling behind the scenes to the playback experience users see.
On our team, the backend is written in Go and the frontend in vanilla JavaScript and React
AI tools (Claude, AI coding assistants, etc.) are an integral part of our development process. We are looking for a strong developer who's made these tools part of their workflow, using them to move faster while owning the thinking and the quality of what ships.
Responsibilities:
Own our next-generation video experience end to end - building and maintaining features across our in-house VMS and video player, from backend delivery to frontend playback, with a focus on smooth performance, low latency, and high engagement.
Design and build the Go services, APIs, and data models that power the VMS and video delivery.
Develop and maintain web applications using vanilla JavaScript and React.
Write clean, maintainable, and testable code.
Participate in code reviews and contribute to improving coding practices within the team.
Collaborate with cross-functional teams, including designers, developers, and product managers, to deliver high-quality web solutions.
Thrive in an agile, fast-paced environment, moving fluidly between projects and priorities as they evolve.

A fast growing tech company in the automotive space with hubs across the US and Israel. We are disrupting the multi-trillion dollar transportation industry with our advanced Customer data Platform (CDP). Our work happens in the fast lane as we bring AI-powered, data -driven solutions to a quickly evolving industry. Our team is made up of curious and creative individuals who are always looking to achieve the impossible. We are bold, collaborative, and goal driven, and, at our core, we believe every voice has value and can impact our bottom line. If you are a creative, solutions oriented individual who is ready to put your career in drive, we are the place for you! We are looking for Senior Engineers who treat AI as a core part of their workflow - people who experiment, iterate, and know how to get real value out of AI tools. Flexibility, curiosity, and a problem-solving mindset are must-haves. In this role you will have the opportunity to take ownership of the development of groundbreaking, AI-driven products and work on interesting projects inside a smart, fun, and dynamic engineering team. This position is based out of our Jerusalem or Tel-Aviv offices and reports to the Dev team lead.

What you will be responsible for:
Write clean, high-quality, high-performance, maintainable code. Ensure that the projects you work on meet business objectives and coding standards. Support the deployment and testing of new products and features. Collaborate with cross-functional teams to gather and analyze requirements, translating them into technical specifications. Design and implement APIs and integrations with third-party services to enhance system functionality. Optimize application performance through code profiling, monitoring, and refactoring as necessary. Implement automated testing frameworks to ensure code robustness and reliability. Participate in code reviews and provide constructive feedback to peers to foster continuous improvement. Stay updated with emerging technologies, best practices, and industry trends to drive innovation within the team. Assist in the establishment and enforcement of development standards and coding conventions.

Why you should join us:
An awesome global team of forward-thinking, innovative go-getters Integrate with tech titans: Work directly with APIs from Google, facebook, Microsoft, and more. Be part of a rapidly scaling company poised for the future. Learning and growth opportunities within a fast-paced SaaS startup environment Clear career advancement path for strong performers As a part of our team, your success in this role is crucial to our company's growth. We are committed to supporting you in achieving your KPIs and goals and providing regular feedback to help you reach your full potential. Together, we can make a real impact and achieve great things! And how can we forget? Cibus and lots of yummy kitchen treats:-)

A fast growing tech company in the automotive space with hubs across the US and Israel. We are disrupting the multi-trillion dollar transportation industry with our advanced Customer data Platform (CDP). Our work happens in the fast lane as we bring AI-powered, data -driven solutions to a quickly evolving industry. Our team is made up of curious and creative individuals who are always looking to achieve the impossible. We are bold, collaborative, and goal driven, and, at our core, we believe every voice has value and can impact our bottom line. If you are a creative, solutions oriented individual who is ready to put your career in drive, we are the place for you! We are looking for Senior Engineers who treat AI as a core part of their workflow - people who experiment, iterate, and know how to get real value out of AI tools. Flexibility, curiosity, and a problem-solving mindset are must-haves. In this role you will have the opportunity to take ownership of the development of groundbreaking, AI-driven products and work on interesting projects inside a smart, fun, and dynamic engineering team. This position is based out of our Jerusalem or Tel-Aviv offices and reports to the Dev team lead.

What you will be responsible for:
Write clean, high-quality, high-performance, maintainable code. Ensure that the projects you work on meet business objectives and coding standards. Support the deployment and testing of new products and features. Collaborate with cross-functional teams to gather and analyze requirements, translating them into technical specifications. Design and implement APIs and integrations with third-party services to enhance system functionality. Optimize application performance through code profiling, monitoring, and refactoring as necessary. Implement automated testing frameworks to ensure code robustness and reliability. Participate in code reviews and provide constructive feedback to peers to foster continuous improvement. Stay updated with emerging technologies, best practices, and industry trends to drive innovation within the team. Assist in the establishment and enforcement of development standards and coding conventions.

Why you should join us:
An awesome global team of forward-thinking, innovative go-getters Integrate with tech titans: Work directly with APIs from Google, facebook, Microsoft, and more. Be part of a rapidly scaling company poised for the future. Learning and growth opportunities within a fast-paced SaaS startup environment Clear career advancement path for strong performers As a part of our team, your success in this role is crucial to our company's growth. We are committed to supporting you in achieving your KPIs and goals and providing regular feedback to help you reach your full potential. Together, we can make a real impact and achieve great things! And how can we forget? Cibus and lots of yummy kitchen treats:-)

Were looking for a Full Stack Developer who doesnt just use AI tools - but knows how to work with them as part of the development process.
Youll build end to end features across a modern TypeScript stack, work closely with Product and Design teams, and help create AI powered experiences used by real customers every day.
This role is for developers who combine strong engineering fundamentals with fast execution, ownership, and curiosity around modern AI technologies.
What Youll Do:
Build full stack features across React frontend and Node.js backend services
Design and maintain scalable APIs and backend systems
Work with MSSQL databases, including schema design and query optimization
Deploy and manage services on AWS environments
Integrate AI capabilities such as LLMs, copilots, and AI agents into product features and internal tools
Use AI development tools to improve speed, quality, and workflows
Structure development workflows around AI tools while maintaining engineering quality and long term maintainability
Lead technical discussions and help shape engineering standards across the team
Collaborate closely with Product, Design, QA, and other developers
Debug production issues across APIs, cloud infrastructure, databases, queues, and distributed systems
Contribute to architecture decisions, code reviews, and technical roadmap discussions
Write clean, scalable, and maintainable code