V4Scale

V4Scale is not just a company; it's an innovation powerhouse that enhances the R&D capabilities of prominent Israeli and US technology firms, with headquarters in Tel Aviv. We do this by harnessing the incredible talents of our diverse global remote workforce, and we welcome candidates from any location worldwide.

We are constantly growing and are now looking for Java/Kotlin Developers to join our Mixed Development Team. The team works in collaboration with a leading Israeli startup in the field of quantum computing to design and develop the backend for the company’s flagship product.

Requirements

• Backend Developer (Java/Kotlin) (The project is implemented using Kotlin)
• Strong in multithreading and Linux.
• Must have solid experience with cloud-based systems, microservices architecture, high-load and highly concurrent environments, and reactive programming.
• Experience with network and/or storage appliances is a strong plus.
• Background development of Monitoring and Control Systems or another kind of enterprise or cloud-based high-scale systems.
• Python and gRPC and Reactive Programming knowledge are strong advantages.

• English, sufficient for interviews and participation in meetings (B2+).

   

We offer

• Remote work, mixed international team, cutting-edge technologies, and flexible working hours.
• The project that you are not ashamed to write about in your resume.
• High salaries and bonuses.
• Business trips to Israel (beach hotel, rented car).
• A friendly team with experienced mentors instead of bosses.

We are currently looking for WEBUI/API Python QA Automation for our Mixed Development Team working on Next Generation Storage in cooperation with an Top Storage company based in Tel Aviv.

Requirements

• At least 8 years of experience in developing test automation and frameworks using Python.
• Hands-on experience with Selenium and other Web UI automation tools.
• Deep understanding of servers, storage, vustualisation and networking (prior System Administration experience is a big plus).
• Proven experience with QA processes and methodologies.
• Knowledge of Rest API / CLI-testing.
• English, sufficient for read/write level and meetings participation (В1).

• Strong system-level mindset with focus on End-to-End testing.

   

We offer

• Remote work, mixed international team, cutting-edge technologies, and flexible working hours.
• The project that you are not ashamed to write about in your resume.
• High salaries and bonuses.
• A friendly team with experienced mentors instead of bosses.

We are constantly growing and now looking for Database Core Developers to join Mixed Remote Development Team collaborating with a top storage company based in Tel Aviv with investors such as Dell Capital and NVIDIA. This is a deep, systems-level role focused on database internals, where you will be responsible for creating the fundamental components that store, retrieve, and process data efficiently.

Summary of key knowledge:

DB Core C++ (storage engines, query planning and execution, transactions), strong C/C++ (or Java, Rust) and OS fundamentals, deep knowledge of concurrency, consistency and recovery, building high-performance, large-scale database or distributed systems in Linux and cloud environments

Requirements:

• Hands-on expertise in database core development, including storage engines, query planners, execution engines, and transaction processing.
• Proven experience in systems-level development using C/C++ or other programming languages, with strong knowledge of operating systems, algorithms, and data structures.
• Experience implementing and optimizing low-level data structures (e.g., B-Trees, LSM-Trees), MVCC, and query optimization algorithms.
• Background in developing high-performance, large-scale systems such as databases, distributed data platforms, or file systems.
• Deep understanding of concurrency, data consistency, durability, and recovery mechanisms.
• Proficiency working in Linux environments and modern cloud or distributed infrastructures.
• Experience with high-scale, performance-critical architectures is a strong advantage.

• English, sufficient for interviews and participation in meetings (B2)

   

We offer:

• Remote work, mixed international team, cutting-edge technologies, and flexible working hours.
• The project that you are not ashamed to write about in your resume.
• High salaries and bonuses.
• Business trips to Israel (beach hotel, rented car).
• A friendly team with experienced mentors instead of bosses.