לוח משרות דרושים Senior Backend Developer

As a Senior Backend Engineer in our Copilot team, you will play a pivotal role in shaping the architecture and evolution of our backend services. You'll work in a dynamic, collaborative environment where innovation and creativity are encouraged.

Your responsibilities:
What you'll be doing:
Architect, develop, and test cloud-native microservices, ensuring they meet our high standards of scalability and reliability.
Deeply engage with a range of tech stacks, showcasing your expertise beyond a single framework-particularly in AI technologies, LLM frameworks and cloud infrastructure, including containerized environments like Kubernetes and Docker.
Collaborate closely with cross-functional teams, including sales and customer success, to ensure our solutions are perfectly tailored to customer needs.
Grow a culture of continuous learning and improvement, mentoring team members and guiding their professional development.
Design and build systems with security at the forefront, understanding and applying key security concepts to protect our customers and their data.

Assume ownership of features and deliver value to customers
Design scalable Big Data pipelines using cutting-edge technologies
Deliver high-quality engineering applying common engineering principles
Work on building GenAI & Copilots security solutions
Think creatively about complex problems and deliver technological Innovation
Collaborate with others via open discussions, Design Reviews, and Code Reviews.

We are looking for a Senior Backend Engineer to join our R&D team in developing the new rising product in the health landscape.
As a Senior Backend Engineer, you will have an impact on how we architect, build, scale, and maintain our backend systems. You will provide technical guidance and mentorship to other engineers on the team, help establish and maintain best practices for development, and participate in the development of the companys technological roadmap. Youll solve complex engineering challenges and drive engineering excellence in a dynamic environment and rapidly increasing scale.
Our ideal candidate has a real passion for making a positive change in the world, for technology and customers, has great communication skills, and loves to constantly improve themselves, our working practices, and our code base.
This is a great opportunity to join the core team of a growing, successful startup and work with the most advanced technologies.
Responsibilities
Lead/Participate in system design and architecture discussions.
Implement and own infrastructure and features; be involved and impact the entire product lifecycle (concept, design, test, release, and production support).
Teach, mentor, grow, and provide advice to other domain experts and individual contributors.
Acquire an in-depth understanding of our technical challenges and strive to improve them.
Play a central role in technical, business, and organizational contributions.
Be a vocal advocate for technical excellence and help the team members make sound decisions.
Work with product managers, data scientists, and other team members to understand the desired requirements and provide your feedback to improve the outcome of the feature.

We are looking for a Backend Engineer to join our Data Engineering team and build backend components and data-focused infrastructure for large-scale data processing.
You will design and maintain core microservices and data pipelines that power our products and provide reliable data sources to teams across the company.
Your work will focus on customer-facing features that depend on complex data assets, with an emphasis on reliability, clear SLAs, observability, and flexibility.
What you will do:
Design and implement infrastructure for high-volume data processing
Continuously improve performance, cost, and reliability at scale
Collaborate with frontend teams on customer-facing features and applications
Work with stakeholders across the company to ensure data processes meet their requirements
Maintain high engineering standards: testing, observability, clean code, and solid CI/CD practices

Required Backend Developer - Base44
Job Description
Work on cutting-edge technologies and become an industry leader.
Improve your skills and learn from top-notch engineers.
Tackle tough problems and find creative ways to solve them.
Push your code to millions of users every day.
Solve hard problems in a simple way using TDD and clean code.
Influence the developer community.
Contribute to the OSS community.

We are seeking a driven and experienced Backend Developer to join our dynamic R&D team at our company. In this role, you will lead complex backend projects end-to-end - starting from understanding functional specifications, through writing detailed technical documentation, designing system architecture, developing and deploying high-performance backend services using modern technologies and cloud infrastructure, while closely collaborating with Product, DevOps, QA, and fellow developers to deliver robust and scalable systems, and providing technical leadership through code reviews and mentoring junior team members.
Responsibilities
What youll do:
Lead complex backend projects from functional spec, through writing detailed technical documentation, architecture, development, and deployment.
Build and maintain high-performance backend services using modern technologies and cloud infrastructure.
Collaborate closely with Product, DevOps, QA and fellow developers to deliver robust, scalable systems.
Provide technical leadership, conduct code reviews, and guide junior team members.

we are shaping the future of urban mobility. Since 2007, we've been pioneering innovative solutions for drivers and commuters, starting with our mobile parking payment service. Today, we are a leading smart mobility app that empowers millions of users to effortlessly manage their transportation needs. Our app simplifies hybrid journeys by combining various transportation modes into one convenient platform.
We are looking for a skilled and experienced Backend Developer with strong Python expertise to join our team. This is a unique opportunity to take part in shaping architecture decisions, contribute to cross-functional projects, and work with cutting-edge technologies in a fast-paced, innovation-driven environment.
Responsibilities
Lead complex backend projects from functional spec, through writing detailed technical documentation, architecture, development, and deployment.
Design, develop, and maintain scalable backend systems using Python in production environments
Build and manage cloud-native, microservices-based architectures and distributed systems
Work with a variety of data storage technologies
Collaborate with cross-functional teams including product, DevOps, and frontend
Build and manage frontend components (Angular) as needed
Communicate complex technical topics clearly to non-technical stakeholders.

Required Backend Engineer - Platform Engineering
Job Description
Play an active role in researching and developing our platform projects and agenda
Lead efforts to enhance the entire microservices development cycle by reducing the cognitive load for developers
Address developer pain points such as improving data access, optimizing event-driven workflows, and facilitating migrations
Help build the right abstractions around our services communication, data access layer, messaging, scheduling, and mass data migrations
Develop and grow as a developer by tackling diverse challenges and working on impactful projects.

Required Senior Backend Engineer - Server Core
Job Description
As a Senior Software Engineer in the Server Core team, you'll design and build scalable solutions for data storage and caching.
In your day-to-day, you will:
Build and design datastore and cache solutions
Help, advise, and guide users to get the most out of our products
Work with internal infrastructure teams
Collaborate with external suppliers like AWS.

Required Backend Engineer - Devex
Job Description
As a Backend Engineer in the Production Development team, youll build internal products and backend platforms that power how we operate and evolves its production environment. Youll design systems that make managing production safe, transparent, and efficient, helping engineers deliver with confidence and speed.
In your day-to-day, you will:
Build scalable backend platforms that manage and validate production and infrastructure changes
Design systems for safe rollout, rollback, and recovery across large-scale environments
Develop systems that detect, mitigate, and remediate production incidents
Create tools that give engineers visibility and insight into production systems
Collaborate with DevOps, infrastructure, and SRE teams to improve how production changes are planned, deployed, and monitored
Example for one of our systems could be found here:
AWS Summit Tel Aviv 2024 - Enhancing your application with GenAI to improving resiliency (MAD303)
At our scale, every production change matters - and your work will directly influence how infrastructure is changed safely and efficiently.
We believe our best work happens together, so our work model is fully in person, with 5 days a week in the office.

Required Senior Backend Engineer for Meta Site Republic
Job Description
In this role, you will provide infrastructure services and develop solutions used across the entire ecosystem, operating at a massive scale. Your focus will include ensuring production stability, reliability, and observability while managing critical flows spanning multiple internal groups. By tackling deep technical challenges
Develop and maintain infrastructure solutions used by all services to facilitate technical operations
Ensure production stability by prioritizing reliability, observability, and safe changes to mission-critical systems
Operate high-volume services at a massive scale, handling millions of sites and billions of applications
Manage critical cross-organizational flows and account for dependencies across various groups
Tackle complex technical challenges within systems that require multiple interfaces and integrations
We believe our best work happens together, so our work model is fully in person, with 5 days a week in the office.

Required Senior Backend Developer - Platform Engineering (A+ Nile)
Job Description
As a Backend Engineer in the Nile group, youll build internal products and tools, used by thousands of our backend engineers. Our solutions and backend platforms, powers how we operate and evolves its production environment. Youll design and implement applicative infra tools that streamline the process of writing backend services, helping engineers deliver with confidence and speed.
In your day-to-day, you will:
Build scalable backend platforms that allow other backend engineers to easily create their backend services while focusing on their business logic
From idea to production, youll have full ownership; understand use cases and gather product requirements, design, code, alpha support, and ongoing maintenance
Collaborate closely with product managers and other backend engineers (our users) to bring ideas to life quickly and with quality. We focus on adoption and are committed to supporting our users
Improve our CDC (Change Data Capture) solutions, allowing for hundreds of our backend engineers to easily and rapidly migrate their data
*We believe our best work happens together, so our work model is fully in person, with 5 days a week in the office.

we're looking for a brilliant, independent AI Software Developer to join our CTO office!
SaaS B2B solution that tackles one of the biggest challenges in financial departments: the overflowing amount of data that, up until now, was managed by tons of Excel sheets. All those financial reports, forecasts, expenses, analytics? takes all this data and integrates it into a one, simple, smart report. It consolidates the information, enables the finance professionals to follow it, manage it, and create the ever-needed order within the realm of finances. If this isn't enough, it enables thorough analysis of consolidated data for the creation of business and financial insights. Its cloud-based, so nothing gets lost, its brilliant, so almost every feature can be added.
What You'll Do:
Own end-to-end development of backend features, from design through implementation, testing, deployment, and monitoring.
Work closely with Product and cross-functional teams to deliver AI-powered features using LLMs, vector search, prompt orchestration, and external AI services (OpenAI, Anthropic, Google, etc.).
Design, implement, and maintain APIs and microservices that integrate with external AI vendors in a scalable, reliable way.
Translate product requirements into practical AI-driven flows, including prompt design, context building, routing, evaluation, and fallback strategies.
Implement observability and monitoring around AI usage (usage tracking, cost monitoring, latency, error handling, safety checks).
Take initiative and ownership, proactively identify blockers, and drive features to completion.
Write clean, maintainable, and testable code in Node.js/TypeScript, and participate in code reviews and design discussions.
Contribute to improving development processes and engineering best practices

we are looking for a Senior Backend Developer.
What You'll Do:
Design and implement end-to-end features and services within a multi-service architecture.
Build and maintain a scalable data platform, incorporating advanced business logic and developing asynchronous, data-oriented, and scalable services.
Continuously improve and enhance the current data platform to ensure reliability, scalability, and performance.
Enhance and extend the functionality of existing systems.

Were building the next generation of autonomous cybersecurity technology - systems that think like attackers to continuously uncover security gaps in enterprise environments.
As a Senior Engineer in our Attack Simulation Platform team, youll design and build the engines, data models, and intelligent agents that simulate advanced adversaries across large-scale networks. Youll combine strong software-engineering skills with deep security intuition to create systems that mirror human attacker behaviour and discover real weaknesses before attackers do.
:Responsibilities
Design and build AI-driven agents that emulate adversarial behaviours such as lateral movement, privilege escalation, and persistence.
Develop core simulation and orchestration components in Go (primary language) and integrate with in-house AI models.
Model and simulate attack paths across complex enterprise environments (identity, endpoint, network, and cloud).
Collaborate with red-teamers, researchers, and data scientists to translate threat intelligence and real attack TTPs into executable logic.
Contribute to architecture decisions, scalability, and performance optimization for distributed simulations.