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20/01/2026
חברה חסויה
Location: Tel Aviv-Yafo
Job Type: Full Time
Join the Blockchain Backend Infrastructure team and take a lead position in building and maintaining blockchain management platform. In this role, youll be responsible for building Fireblock's cutting-edge blockchain infrastructure while implementing high-throughput and real-time scalable software solutions.
What You'll Do:
Implementing modern BE applications and infrastructure in a microserices architecture, utilizing the latest technologies and development practices.
Deep diving into the latest blockchain technology, and becoming an expert in the fundamentals, protocols, and features of the blockchains.
Collaborating effectively with other developers, engineers, and other roles while showcasing independent problem-solving abilities.
Ensuring that the platform remains at the forefront of blockchain technology!
Requirements:
5+ years of backend development experience with Typescript/NodeJS, Python or Go.
Experience working on high-scale distributed systems and proficiency in code architecture and design
Experience working on high-scale distributed systems
Versatile end-to-end technical experience, spanning from OS level through application and cloud, to CI/CD
Ability to quickly learn and adapt to new technologies and tools.
Strong problem-solving and analytical skills, capable of independently exploring, proposing, and implementing well-thought-out solutions.
Demonstrated commitment to excellence, proactiveness, and driving for success.
Bonus Skills:
Experience with C++.
Experience with Blockchains ecosystem.
This position is open to all candidates.
 
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חברה חסויה
Location: Tel Aviv-Yafo
Job Type: Full Time
We are seeking a talented senior Backend Engineer to join our team to help design, develop, and maintain the backend infrastructure of our emerging and growing client-side security product. As a Backend Developer, you will be responsible for creating micro-services that protect against client-side attacks, always evolve the system according to the latest security trends and compliance, and ensuring the system is highly scalable.

What you'll do

How Youll Make an Impact -

Architect for Scale: Lead the design and implementation of distributed systems engineered to process hundreds of thousands of requests per second while maintaining strict latency targets within tens of milliseconds.

Own the Lifecycle: Take full accountability for the entire software development lifecycle-from initial architectural design and coding to rollout, observability, and long-term system health.

Collaborate across Functions: Partner closely with product and engineering teams to transform ambitious product goals into high-performance technical reality.

Our Pragmatic Tech Stack -
We use a suite of tools specifically chosen to handle our unique scale and performance requirements:

Core Backend: Go

Messaging: Kafka, Redis Pub/Sub, GCP Pub/Sub.

Data: MongoDB, Postgres, Redis, BigQuery.

Infrastructure & Orchestration: Kubernetes, ArgoCD, Pulumi, Crossplane.

CI/CD: GitHub Actions, Jenkins.

Cloud Platforms: Multi-cloud environment (GCP, AWS, Azure).
Requirements:
High-Performance Specialist: 5+ years of experience building backend services and a deep understanding of modern distributed system design.

Technical Proficiency: High proficiency in at least one backend language such as Go, Java, Scala, or similar. You should have a strong command of concurrency and multithreading. (Experience with Node.js is a plus).

Reliability Mindset: A solid understanding of networking, monitoring, and alerting frameworks, with a proven track record of troubleshooting and optimizing complex production systems.

Versatile Work Style: You are equally comfortable working independently on complex technical problems, contributing as part of a collaborative team, or taking the lead on major projects and initiatives.
This position is open to all candidates.
 
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חברה חסויה
Location: Tel Aviv-Yafo
Job Type: Full Time and Hybrid work
We're seeking an outstanding and passionate Software Engineering to join our growing R&D team.

You will work in an energetic startup environment following Agile concepts and methodologies. Joining the company at this unique and exciting stage in our growth journey creates an exceptional opportunity to take part in shaping our team and technology at the forefront of Fintech and AI.

If you have more front-end or back-end orientation, don't hesitate to apply.

What you'll do:

Be responsible (together with the team members) for the company`s platform, its up-time, architecture & scale.

Be part of building a high-scale and robust backend platform.

Work closely with company leadership, and iterate over core infrastructure.

Write high-quality and performant code following industry best practices and standards.

Experiment with new technologies, tools, and 3rd party frameworks. Utilize them to deliver state-of-the-art tech.
Requirements:
What you'll bring:

5+ years experience in backend development in either Node.js/Python/Go experience.

Strong understanding and hands-on experience in backend technologies and architecture.

Hands-on experience with SAAS architecture and distributes systems.

Ability to carry requirements from the early phase to full implementation.

Passion for learning new technologies and applying them to make a difference.

Fluent in English, both written and verbal.

And it would be great if you have (optional):

Frontend development experience and understanding.

Experience working in a startup company.

DevOps and infra-oriented experience.
This position is open to all candidates.
 
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הגשת מועמדותהגש מועמדות
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20/01/2026
חברה חסויה
Location: Tel Aviv-Yafo
Job Type: Full Time
The Platform Services team builds the core backend capabilities that power all products. Every business unit relies on these generic, reusable services to operate, scale, and innovate.
We own both developer-facing platform components (APIs, SDKs, events, configurations, notifications, templates, etc.) and product-facing experiences used directly by customers. When a capability is commonly needed across multiple units, we productize it into a scalable platform service. As part of the Platform unit, we work closely with all R&D teams to ensure consistency, scalability, and operational excellence across .
The team is primarily focused on backend development but also includes frontend components, enabling end-to-end platform solutions.
As the Engineering Manager, you will drive the technical vision of our platform and empower every product team to build on secure, reliable, high-performing foundations.
You will be responsible for
Lead, inspire and mentor a team of talented engineers.
Operate as a cross-functional leader within R&D, coordinating across multiple teams to ensure strategic and operational alignment.
Work closely with the team to ensure the implementation of best coding and engineering practices.
Drive the design and architecture of platform services, ensuring scalability, maintainability, and alignment with overall technical vision.
Take ownership of project deliverables, ensuring timely and high-quality delivery.
Make an impact in the Platform Services domain by translating the needs into requirements and solutions.
Ensure that code quality, performance, best practices and design standards are met.
Collaborating effectively with other teams, while also showcasing independent problem-solving abilities.
Continuously improve the teams processes.
Requirements:
Strong leadership skills, with the ability to inspire, mentor, and grow a high-performing team.
5+ years of experience in engineering management or leading backend teams.
8+ years of experience in backend development and building microservices architectures.
3+ years of experience with Node.JS development.
Ability to quickly learn and adapt to new technologies and tools.
Demonstrated commitment to excellence, proactiveness, and driving for success.
Excellent communication and collaboration skills.
Bonus Skills:
Experience with React development.
B.Sc. in Computer Science/Engineering or equivalent knowledge.
Experience with Blockchains/cryptography ecosystem.
This position is open to all candidates.
 
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הגשת מועמדותהגש מועמדות
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Location: Tel Aviv-Yafo
Job Type: Full Time
we are looking for a Senior Backend Software Engineer.
As a Backend Software Engineering, your job responsibilities will include:
Build new and exciting components in an ever-growing and evolving market technology to provide scale and efficiency.
Develop high-quality, production-ready code that can be used by millions of users of our cloud platform.
Make design decisions on the basis of performance, scalability, and future expansion.
Work in a Hybrid Engineering model and contribute to all phases of SDLC including design, implementation, code reviews, automation, and testing of the features.
Build efficient components/algorithms on a microservice multi-tenant SaaS cloud environment
Code review, mentoring junior engineers, and providing technical guidance to the team (depending on the seniority level)
JR316760
Requirements:
5+ years of development experience as a software engineer.
Deep knowledge of object-oriented programming and other scripting languages: Java, Python, Scala C#, Go, Node.JS and C++.
Strong SQL skills and experience with relational and non-relational databases e.g. (Postgress/Trino/redshift/Mongo).
Experience with developing SAAS products over public cloud infrastructure - AWS/Azure/GCP.
Proven experience designing and developing distributed systems at scale.
Proficiency in queues, locks, scheduling, event-driven architecture, and workload distribution, along with a deep understanding of relational database and non-relational databases.
A deeper understanding of software development best practices and demonstrate leadership skills.
Degree or equivalent relevant experience required. Experience will be evaluated based on the core competencies for the role (e.g. extracurricular leadership roles, military experience, volunteer roles, work experience, etc.)
Desired Skills:
Technical expertise in Generative AI, particularly with RAG systems and Agentic workflows that use large language models.
Experience with Big-Data/ML and S3
Hands-on experience with Streaming technologies like Kafka
Experience with Elastic Search
Experience with Terraform, Kubernetes, Docker
Experience working in a high-paced and rapidly growing multinational organization
This position is open to all candidates.
 
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3 ימים
Location: Tel Aviv-Yafo
Job Type: Full Time
we are looking for a Backend Engineer.
Youll be part of the group responsible for 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 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.
Requirements:
Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
5+ years of experience in backend development, with a strong focus on infrastructure and platform engineering.
Proficiency in programming languages such as C#, Python, Java, or Go.
Experience building large-scale infrastructure applications or large-scale web applications.
Experience improving stability of large-scale systems using monitoring, solving bottle-necks and making appropriate changes.
High coding standards, working independently and experience leading long term tech tasks involving many teams and stakeholders.
Experience with cloud platforms (e.g., AWS, GCP, Azure) and container orchestration tools like Kubernetes.
Familiarity with CI/CD pipelines and infrastructure-as-code tools (e.g., Terraform, Ansible).
Demonstrated experience in integrating and leveraging AI tools to enhance development workflows.
This position is open to all candidates.
 
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Location: Tel Aviv-Yafo
Job Type: Full Time and Hybrid work
we are looking for a Senior Software Engineer.
You will be responsible for:
Designing, implementing, and optimizing large-scale backend services
Leading development efforts and collaborating on architecture decisions
Ensuring service reliability, scalability, and performance
Writing high-quality, testable, and maintainable code
Mentoring junior engineers and fostering best practices across the team
Driving technical improvements and contributing to the teams roadmap
Requirements:
B.Sc. in Computer Science, Software Engineering, or a related field, with 6+ years of related experience
Proven experience building and deploying production-grade backend systems
Proficiency in backend technologies such as Python, NodeJS, and cloud-native tools (AWS, Docker, Kubernetes)
Deep understanding of distributed systems, microservice design, and API architecture
Preferred Qualifications:
Experience leading design discussions and delivering end-to-end features
Hands-on experience with performance tuning and large-scale systems
Familiarity with observability and monitoring practices
Experience collaborating with product and business stakeholders to define technical priorities and translate product needs into engineering tasks
Strong communication and mentorship skills
Team player with high sense of ownership and accountability
This position is open to all candidates.
 
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20/01/2026
חברה חסויה
Location: Tel Aviv-Yafo
Job Type: Full Time
The Backend Infrastructure Team at plays a crucial role in shaping the platform's core. By seamlessly blending TypeScript and Python frameworks with self-serve operations capabilities, we support our R&D organization and ensure our platform is performant and reliable, adapting to the growing demands for our product in the digital asset space. This makes it an ideal place for those who thrive on innovation and aim to make a large-scale impact
What You'll Do:
Creating and deploying core software infrastructure components at scale.
Maintaining and enhancing our internal Typescript frameworks, tools, and platforms essential for product engineering teams throughout the software development lifecycle.
Introducing self-service deployment capabilities to empower R&D teams.
Advocating for and enforcing standards and best practices.
Leading and educating through knowledge sharing via documentation, knowledge-base articles, blogs, forums and presentations.
Addressing complex production issues and developing long-term solutions.
Contributing to the engineering and standardization of our CI/CD infrastructure.
Working closely with cross-functional teams to ensure the targeted availability, reliability, scalability, throughput and performance of our infrastructure while adhering to industry best practices and standards.
Requirements:
Bachelor's degree in Computer Science, Engineering, or a related field; Master's degree preferred.
7+ years of experience working as a backend engineer with a focus on infrastructure development.
Proficiency in NodeJS/Python, with a strong understanding of their respective ecosystems and best practices.
Experience designing, implementing, and maintaining scalable and reliable infrastructure components in a production environment.
Solid understanding of cloud computing platforms (e.g., AWS, Azure, GCP) and containerization technologies (e.g., Docker, Kubernetes).
Strong knowledge of CI/CD concepts and tools (e.g., Jenkins, GitLab CI/CD) and experience with infrastructure as code (IaC) tools such as Terraform or CloudFormation.
Excellent communication and collaboration skills, with the ability to work effectively in a fast-paced, agile environment.
Experience with blockchain or cryptocurrency - Advantage.
Experience with NestJS - Advantage.
This position is open to all candidates.
 
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חברה חסויה
Location: Tel Aviv-Yafo
Job Type: Full Time
Were looking for a Senior Backend Engineer to join our core team and push forward the technology that powers our fraud prevention engine. In this role, youll work closely with Data Analysts and Data Scientists to evolve the logic, infrastructure, and performance of our decision-making systems.
Youll design and build high-performance backend services, improve latency and reliability at scale, and contribute to the architecture of a distributed microservices ecosystem running in Kubernetes. This is an opportunity to make a direct impact on our product, performance, and customers in a fast-moving startup environment where ownership, initiative, and curiosity truly matter.
Requirements:
BSc in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
6+ years of backend engineering experience
4+ years of hands-on Node.js experience (TypeScript)
Strong expertise with at least one NoSQL document store (e.g., MongoDB, Couchbase)
Hands-on experience with at least one streaming or message/event system (Kafka, RabbitMQ, AWS SQS, etc.)
Experience designing and implementing RESTful APIs
Experience working with at least one cloud platform (AWS, GCP, or Azure)
Strong testing mindset and experience with automated testing frameworks
A proactive, curious, and problem-solving mindset with a strong sense of ownership
Fluent English (written & spoken)
Nice to Have:
Practical experience with DevOps tooling such as Kubernetes, Helm, Terraform, or other infrastructure-as-code solutions
Familiarity with Python
Familiarity with ML fundamentals (classification, precision/recall, train/test, etc.)
Background in payments, fintech, or fraud prevention
This position is open to all candidates.
 
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15/01/2026
Location: Tel Aviv-Yafo
Job Type: Full Time
Were on the lookup for a senior backend engineer to join our Detection group. Be a significant part of the development of infrastructure that efficiently handles, processes, and stores vast volumes of data. Architect and build scalable, high-performance backend system that enables real-time threat detection platform and find state-sponsored attacks.
: Responsibilities
Design and develop complex, large-scale backend systems that efficiently handle, process, and store high volumes of data.
Translate business and technical requirements into clear backend architecture and detailed implementation plans, with strong focus on design quality, maintainability, reliability, and performance.
Collaborate closely with cross-functional teams (Product, Data, DevOps, Security) to deliver robust backend and data-processing capabilities.
Build resilient, production-grade systems and drive modern engineering practices, leveraging cloud technologies.
Debug and resolve complex backend issues using strong analytical and problem-solving skills.
Lead processes, drive initiatives end-to-end, and contribute to a collaborative, positive team culture.
Requirements:
5+ years of experience with software development (using Go or Python is an advantage).
Ability to evaluate and adopt new technologies, developing a deep understanding of underlying mechanisms to support technical decision-making.
Proven experience building and maintaining large-scale, high-throughput systems.
Solid experience with microservices architecture and related technologies (Docker, Kubernetes).
Solid background with databases, including modern storage and search solutions.
Experience with messaging/stream processing and scalable data storage patterns.
Ability to bootstrap projects, design systems from scratch, and deliver end-to-end.
Ownership mindset and leadership skills, with the ability to guide complex technical efforts.
This position is open to all candidates.
 
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4 ימים
חברה חסויה
Location: Tel Aviv-Yafo
Job Type: Full Time
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.
Requirements:
5 years of backend-focused engineering experience, with a proven track record of building and scaling complex systems.
Success across 2-3 fast-paced startup environments, demonstrating adaptability and impact.
Strong proficiency in Python for backend development.
Deep understanding of data systems, including SQL/NoSQL databases and data warehouses.
Hands-on experience with cloud platforms (AWS/GCP), Kubernetes, and CI/CD pipelines.
Curiosity and eagerness to learn; background in cybersecurity, blockchain, or data analysis is a strong plus.
Experience designing and building scalable data pipelines and real-time processing systems.
Skilled with- ETL/ELT tools (Apache Airflow/dbt/Dagster) and streaming platforms (Kafka/Kinesis/RabbitMQ/..).
Familiar with real-time analytics frameworks such as Flink, Spark Streaming, or similar.
This position is open to all candidates.
 
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