לוח משרות דרושים Backend Engineer

We are backed by top-tier global investors including Sequoia Capital, Ribbit Capital, and Cyberstarts-firms known for supporting the most innovative and influential companies in technology and cybersecurity
As a Backend Engineer, you will design, build, and scale the core backend systems that power our security platform-directly shaping the safety of millions of Web3 users. Youll work closely with a team of world-class engineers to deliver highly reliable, performant, and secure infrastructure.
Your Chain of Impact:
Lead feature development end-to-end, from requirements to production.
Build systems that protect millions of users from fraud, scams, and hacks.
Contribute across the full software development lifecycle in an agile environment.
Drive technical innovation by staying ahead of emerging technologies.
Uphold the highest standards of code quality, scalability, and performance.
Take true ownership of our product, tech stack, and development processes.

we are seeking a skilled Backend Developer to join our growing development team and
contribute to the creation of our next-generation cybersecurity product.
Basic Qualifications
- Knowledge in Cloud objects
- Strong expertise and knowledge in c# and .NET last versions
- At least 2 years of experience with hands-on developing:
o Micro services
o Oauth
o Restful API
o SQL /NON SQL
o Secure development knowledge
- Debugging skills
- Comfortable taking on challenges and learning new technologies, including new coding languages
- Team player

As a Senior Software Engineer, you will play a key role in developing and maintaining Nodes Access platform, including its applications, services, and underlying systems. Youll work with a modern backend tech stack, leveraging AI, microservices, databases, Kubernetes, Ansible, CI/CD, and more to build scalable and resilient solutions.
You will be responsible or:
Implementing an AI framework to manage and orchestrate a fleet of services and blockchain RPC nodes, and building AI agents for enhanced platform capabilities.
Implementing modern BE applications and infrastructure in a microservices architecture, utilizing common networking protocols, object-oriented design, and cutting-edge techniques - while leveraging work with AI Agents and Skills.
Establishing a modern CI/CD pipeline in a microservices architecture, using best practices, tools, and techniques.
Ensuring the robustness and maintainability of our BE services and the overall application.
Collaborating effectively with other developers, engineers and other roles, while also showcasing independent problem-solving abilities.
Demonstrating a strong command of the blockchains ecosystem in high-load scenarios while staying updated with the latest technologies and practices.
Dive deep into the latest blockchains, seamlessly incorporate them into our product, and become an expert in the fundamentals, protocols and features of the blockchains.
Ensuring that platform remains at the forefront of blockchain technology!

If you enjoy solving problems where security, scale, distributed systems, and adversarial thinking collide - this is your kind of challenge.
What Youll Do:
Youll collaborate with backend engineers, infrastructure teams and security and cryptography researchers to ship production-grade highly secure digital signing systems, balancing cryptographic rigor, performance constraints, and distributed reliability in a domain where small mistakes have massive consequences. This includes:
Architecting, designing and implementing distributed backend services responsible for key generation, storage and lifecycle management
Developing high-assurance signing protocols and signing flows (utilizing MPC or external signing devices)
Building secure backup and disaster recovery mechanisms for cryptographic material
Hardening systems against adversarial conditions and real-world attack vectors
Optimizing performance-critical components that execute complex operations

we are hiring a Senior Backend Engineer to join the Platform Team in Tel Aviv-Yafo, Israel.
The Platform Team is dedicated to developing mobile platform, delivering a reliable, fast, and secure experience for mobile users.
What Youll Do:
Lead the backend development of the new mobile application.
Design, implement, and maintain high-performance microservices that support low-latency and high-throughput operations.
Develop and optimize mobile API to ensure a seamless and scalable experience for our mobile users.
Collaborate with cross-functional teams to design systems that meet operational and business goals.
Research and implement cloud-native architectures to support ongoing growth and scalability.

We are looking for a Backend Engineer to join our Legal Tech engineering team and help build the next generation of AI-driven litigation ecosystem. This role combines top-tier backend engineering, cloud architecture, and cutting-edge LLM/AI innovation.

Youll build high-scale, secure, multi-tenant services that turn our real-time transcription engine into AI-powered workflows and assistants used by legal teams. The role offers real ownership and chances to lead initiatives, while giving you space to grow your skills in AI development and modern dev-AI tools-all within a supportive, collaborative team.

This is a role for heart-and-soul players with passion, curiosity, and a desire to build something meaningful as part of a strong and mission-driven team.

We are looking for a Senior Backend Engineer to join our Legal Tech engineering team and help build the next generation of AI-driven litigation ecosystem. This role combines top-tier backend engineering, cloud architecture, and cutting-edge LLM/AI innovation.

Youll build high-scale, secure, multi-tenant services that turn our real-time transcription engine into AI-powered workflows and assistants used by legal teams. The role offers real ownership and chances to lead initiatives, while giving you space to grow your skills in AI development and modern dev-AI tools-all within a supportive, collaborative team.

This is a role for heart-and-soul players with passion, curiosity, and a desire to build something meaningful as part of a strong and mission-driven team.

We are looking for a Backend Engineer to join our Data Science team.

In this role, you will partner directly with Data Scientists to transition research prototypes into efficient, production-ready microservices. You will collaborate with a broad forum of experts including architects, data engineers, and product managers, to deliver high-quality technical solutions that drive our product forward.

Responsibilities
Model Tech-Transfer: Transition research prototypes (from Data Scientists) into efficient, production-ready microservices.
Pipeline Management: Build and maintain automated pipelines for data collection, model training, and deployment (using Jenkins & Airflow).
Infrastructure Ownership: Deploy, tune, and manage AWS cloud resources (EC2, S3, ElastiCache) for low latency and high availability.
Monitoring and Evaluation: Implement monitoring for model performance (accuracy, statistical calibration) and Business Performance (adherence with company KPI, business impact).
Quality Assurance: Write robust unit tests and optimise code for performance.

An AI startup is looking for a Software Engineer / Architect for a senior role focused on leading backend architecture and designing complex systems at a critical pre-launch stage.

This position includes broad ownership over infrastructure, scalability, and implementing an AI-first engineering mindset across the product and organization.



Responsibilities:

Lead backend architecture and system design
Design services, APIs, and data flows for an AI product
Build scalable, reliable, production-ready systems
Lead AI-first development best practices
Work closely with the founders on the technical roadmap
Improve engineering processes, performance, and system design
Own product infrastructure in preparation for significant scale

A growing startup company, developing a cloud optimization product, is looking for a Senior Backend Engineer, who combines strong infrastructure expertise with scalable application architecture. In this role, youll own the full backend lifecycle-from designing robust REST APIs to managing containerized environments with Kubernetes-building resilient, high-performance systems.



Key Responsibilities

Design and develop highly available, scalable web applications (including DR scenarios).
Architect and implement secure, well-documented REST APIs.
Manage and scale containerized environments (Kubernetes/Docker Swarm).
Maintain clean, modular, and testable backend code.
Drive CI/CD automation and uphold high code quality standards.
Lead microservices architecture and backend design best practices.

A leading cybersecurity startup, is looking for a Senior Backend Engineer to join its growing R&D team. In this role, you will design and build scalable, high-performance backend services for the next generation of the company's security platform, aligning technical solutions with business needs. The stack includes Java, Go, and React, and transitioning to a SaaS, multi-tenant Micro-services architecture.



Responsibilities

Design and develop scalable, high-performance backend services using Java and Go
Build and evolve a multi-tenant, cloud-native architecture
Work closely with Product, Frontend, Backend, and QA teams
Contribute to architectural decisions, performance goals, and engineering best practices
Mentor team members and collaborate in a fast-paced, innovative environment

A defense-tech startup, building an AI-powered autonomous systems that connect cameras, sensors, and natural-language interfaces, is looking for a Senior Back End Engineer, with AI \ Computer Vision expertise. In this role, youll be one of our first engineers. Youll shape architecture, set engineering standards, and lead the development of real-time, AI-first features for high-stakes.

Join a global B2B company developing cutting-edge optimization software for the food and delivery industry.



What Youll Do:

Build scalable backend systems for cloud and on-premise environments.
Own features end-to-end: design, implementation, testing, and deployment.
Develop high-performance code for systems running worldwide, often on legacy hardware.
Collaborate with cross-functional teams (Frontend, Product, QA, DevOps).
Innovate under real-world constraints with performance and stability in mind.
Work independently while driving backend best practices.

A global software company developing cloud computing services for digital media management is looking for a Senior Back-End Engineer.

Join a cross-location team (Poland and Israel) building the cloud-based asset product at scale.

The role includes responsibility for the full development lifecycle - deciding what to build, how to build it, and delivering it end-to-end.



What Youll Do

Become the teams go-to expert on our services and infrastructure
Work closely with product managers to understand goals and deliver impactful features
Maintain high code quality and scalable architecture, collaborating with developers and the architects forum
Use code-generation tools to maximize efficiency
Proactively identify improvements and refine solutions based on customer feedback

abra R&D is looking for a Backend Platform AI Engineer! ab ra R&D is looking for a Backend Platform Engineer to help build the next?generation Database built from scratch for AI Agents This role focuses on building the developer-facing platform around the core database engine- enabling seamless integration with AI agent frameworks (LangChain, PydanticAI, and others), as well as external systems via connectors, plugins, and SDKs What You’ll Do
* Design and build MCP APIs and core backend services
* Develop and maintain SDKs (Python, TypeScript, Go, Rust)
* Build connectors and plugins for AI agent platforms (LangChain, PydanticAI, others)
* Design clean, scalable, and ergonomic developer-facing APIs
* Own integration infrastructure (auth, streaming, event pipelines, webhooks)
* Build and optimize real-time data flows between agents, services, and the database
* Collaborate closely with database engineers to expose powerful capabilities through well-designed APIs
* Ensure reliability, observability, and performance of all external-facing systems