Working at Jscrambler

ABOUT THE ROLE

We are looking for a Senior Automation QA Engineer who thinks like an architect.

As part of our team, you will play a key part in delivering high-quality products that exceed the expectations of world-class customers. You will not just simply write test scripts; you will define the end-to-end QA strategy for a product that lives in the browser.

We are seeking someone who excels in operational execution while also leading the evolution of our QA strategy. As AI reshapes the SDLC, you will help determine how we leverage it, moving beyond basic automation to intelligent, risk-based quality gates. If you enjoy solving complex problems, designing test strategies for highly dynamic systems, and validating behavior across frameworks, browsers, and devices, come join us!

WHAT WILL YOUR DAY-TO-DAY BE LIKE?

• Own the end-to-end QA strategy for a product running directly in customer browsers, ensuring rock-solid reliability across real-world environments.

• Ensure browser and device compatibility by designing and building automated tests for leading JavaScript frameworks and the modern web ecosystem (desktop and mobile, Android and iOS).

• Raise the bar on performance and stability, validating premium performance for all components—especially those executing in the browser under diverse customer conditions.

• Build comprehensive test automation that runs continuously in CI/CD pipelines, enabling fast, confident releases with scalable quality gates.

• Own the vision for how AI is applied to quality engineering, moving the organization beyond task automation toward intelligent, risk-based quality strategies.

• Validate resilience under high traffic, ensuring edge and backend services remain stable, responsive, and scalable under real production loads.

• Continuously improve tools and processes, making testing faster, more reliable, and deeply integrated into engineering workflows.

• Be part of a true Product Development organization, collaborating daily with Engineering and Product to embed quality at every stage, from concept to production.

EXPERIENCE AND QUALIFICATIONS

• Bachelor's or higher degree in Computer Science or equivalent.

• Familiarity with multiple testing approaches, including unit, integration, end-to-end, contract, regression, load, stress, performance, exploratory, security, compatibility, and resilience tests, ensuring robust, reliable, and high-quality software across all layers.

• Familiarity with modern testing and performance tools, including Playwright, BrowserStack, Postman, and Lighthouse, to support robust automation, cross-platform testing, and high-performance validation.

• Experience writing code/tests in one or more programming languages (preference for TypeScript/JavaScript).

• Experience testing microservices architectures and event-driven systems, validating reliability across APIs, asynchronous flows, messaging, and distributed components.

• Have an innovative mindset - you’re curious, proactive, and always looking for smarter ways to test.

• Assertive and pragmatic - you ask the right questions, challenge assumptions when needed, and focus on what delivers the most impact.

• Communicate clearly and confidently, with strong collaboration and negotiation skills across technical and non-technical stakeholders.

• Fluency in English (B2 minimum, upper-intermediate/advanced), comfortable working in an international setup.

OUR COMMITMENT TO YOU

• Immerse yourself in a dynamic space that challenges you to grow, both personally and professionally.

• Enjoy flexible work policies designed to help you seamlessly integrate your life with your career at Jscrambler.

• Play a vital role in our mission to enhance web security, becoming part of a startup that’s redefining the landscape of cybersecurity.

• Seize the chance to directly impact our business expansion and innovative solutions.

• Benefit from ongoing training and development opportunities to help you reach your full potential.

• Enjoy a range of adaptable benefits that cater to your unique lifestyle and needs.

The best way to get in touch with us:

Submit your application to [email protected], and we would be delighted to explain this amazing opportunity.

THE ROLE

As a DevOps Engineer, you will contribute to maintaining and optimizing our scalable, secure, and automated infrastructure across cloud and hybrid environments, including bare metal platforms. You will play a key role in building highly reliable systems, enabling fast and safe software delivery through advanced CI/CD pipelines and infrastructure automation, while ensuring cost efficiency, security, and operational excellence.

You’ll also work with containerized environments, support security and compliance best practices across the DevOps lifecycle, and implement robust monitoring and alerting systems. Your responsibilities will include responding to incidents, improving performance, driving continuous improvement initiatives, and staying at the forefront of emerging technologies.

This is a collaborative role where your technical expertise will be key to drive the adoption of modern DevOps tools. You will actively contribute to the execution of the DevOps roadmap, ensuring our infrastructure evolves to meet the needs of our product.

KEY RESPONSIBILITIES

• Design, implement, and maintain scalable, secure, and automated infrastructure across local, hosted, cloud, and bare metal environments using Infrastructure as Code (IaC).

• Assist in the provisioning, operation, and troubleshooting of bare metal servers, including hardware diagnostics, OS-level debugging, performance tuning, and incident resolution in production environments.

• Maintain and optimize CI/CD pipelines to ensure efficient, reliable, and repeatable software delivery processes.

• Manage and support containerized application environments using Docker and Kubernetes, adhering to best practices for orchestration, deployment, and lifecycle management.

• Deploy, configure, and maintain high-throughput streaming architectures, ensuring their stability and performance.

• Execute security and compliance across the DevOps lifecycle, including secure pipeline configurations, secrets management, and infrastructure hardening.

• Implement and maintain robust monitoring, logging, and alerting systems to ensure system reliability, performance, and rapid incident response.

• Actively contribute to project planning and sprint execution, ensuring alignment between infrastructure goals and broader product delivery timelines.

• Stay up to date with emerging DevOps tools and practices, and promote their adoption across the team to maintain technical excellence and operational efficiency.

EXPERIENCE AND QUALIFICATIONS

• Infrastructure as Code & Provisioning: Proficiency in tools like Ansible and Terraform for automated server and service provisioning.

• Bare Metal Infrastructure: Experience with bare metal environments, including server provisioning, hardware troubleshooting, OS-level debugging and network diagnostics.

• Containerization & Orchestration: Proficiency with Linux containers (e.g., Docker) and container orchestration platforms such as Kubernetes (our core orchestration layer).

• Networking & Security: Strong understanding of network and firewall management (e.g., iptables), as well as WAFs (preferably Cloudflare WAF) and Zero Trust access solutions (e.g., Teleport Cloud).

• CI/CD & GitOps: Solid experience with CI/CD pipelines using tools such as GitLab CI and ArgoCD for GitOps workflows.

• Monitoring & Logging: Hands-on experience with the Elastic Stack (ELK), FluentBit, and Wazuh for log collection, correlation, and threat detection.

• Observability: Solid knowledge of the Prometheus ecosystem for metrics collection and alerting.

• Databases: Experience with managing and monitoring clustered database setups, including: MongoDB clusters; ClickHouse clusters; PostgreSQL clusters.

• Operating Systems & Scripting: Strong experience with Linux systems administration and shell scripting (Bash), experience with Python is considered a plus.

• A Degree in Software Engineering, Computer Science, Information Technology, Information Systems, or related field.

• 3–5 years of professional experience in a DevOps, SRE, or Systems Engineering role.

OUR COMMITMENT TO YOU

• Immerse yourself in a dynamic space that challenges you to grow personally and professionally.

• Enjoy flexible work policies designed to help you seamlessly integrate your life with your career at Jscrambler.

• Play a vital role in our mission to enhance web security, becoming part of a startup that’s redefining the landscape of cybersecurity.

• Seize the chance to directly impact our business expansion and innovative solutions.

• Benefit from ongoing training and development opportunities to help you reach your full potential.

The best way to get in touch with us:

Submit your application to [email protected], and we would be delighted to explain this amazing opportunity.

ABOUT THE ROLE

We are looking for a Senior Data Engineer to join our Engineering team, who will be responsible for designing, building, maintaining, and scaling our Data Platform. As a Senior Engineer, you will have an exceptional impact, delivering high-quality work. We expect you to learn quickly, solve complex problems, and take full ownership of issues, from identification to resolution. You enjoy collaboration across teams, driving initiatives, and contributing to achieving key business goals. Your strong technical expertise and passion for Data will help you to succeed in this role.

Our data platform delivers real-time insights into client-side behaviors to detect malicious activity. It processes millions to billions of data entries from web applications, identifying cybersecurity threats and PII (Personally Identifiable Information) compromises.

We are investing in expanding the platform’s capabilities, aiming to offer real-time data analysis and support new use cases. Our customers rely on our products to digest large volumes of data into easy-to-read, actionable dashboards that highlight potential attacks and security risks

KEY RESPONSIBILITIES

• Design and develop conceptual, logical, and physical data models to fulfill business strategies and processes;

• Ensure data models are aligned with business needs and processes;

• Collaborate with product managers, engineers, and data analysts to translate business requirements into data-driven solutions;

• Ensure automated and frictionless data flow between different systems and platforms;

• Develop and implement policies and standards for effective data governance;

• Ensure data quality, consistency, and compliance with regulatory standards;

• Promote the adoption of cutting-edge technologies and best practices in the organization’s data architecture;

• Identify and assess new tools, platforms, and frameworks to enhance data architecture and management.

EXPERIENCE AND QUALIFICATIONS

• Bachelor’s, Master’s, or Ph.D. in Computer Science, Data Science, or a related field.

• 4+ years of experience in data architecture, modeling, database design, and data management;

• Strong proficiency in Python, SQL, and data governance principles;

• Hands-on experience with technologies like Airflow, Clickhouse, MongoDB, Kafka and Grafana;

• Experience in building ETL/ELT pipelines from scratch;

• Experience with event-driven architectures;

• Proven ability to design and implement large-scale data architectures;

• Capability to drive innovation in data architecture and explore new technologies and methodologies;

• Knowledge of JavaScript is valued;

• Knowledge of Security/Application Security is valued;

• Fluency in English is mandatory.

OUR COMMITMENT TO YOU

• Immerse yourself in a dynamic space that challenges you to grow, both personally and professionally.

• Enjoy flexible work policies designed to help you seamlessly integrate your life with your career at Jscrambler.

• Play a vital role in our mission to enhance web security, becoming part of a startup that’s redefining the landscape of cybersecurity.

• Seize the chance to directly impact our business expansion and innovative solutions.

• Benefit from ongoing training and development opportunities to help you reach your full potential.

• Enjoy a range of adaptable benefits that cater to your unique lifestyle and needs.

The best way to get in touch with us:

Submit your application to [email protected], and we would be delighted to explain this amazing opportunity.