BAS Developer (ZennoPoster) in Automated Communication Solutions

We are looking for a BAS Developer for our partners — an international team of experts in telecom analytics and mobile security. The company specializes in detecting vulnerabilities within the SMS delivery chain, monitoring and blocking illegal traffic. Their solutions help mobile operators worldwide reduce costs, improve service quality, and ensure end-user security.

We are inviting an experienced BAS Developer to join the R&D team

Responsibilities

• Development and optimization of automated scripts in BAS (Browser Automation Studio) for testing mobile services and working with web/mobile interfaces.
• Integration of BAS logic with Python services, REST APIs, and databases.
• Working with anti-fraud systems and mobile emulators.
• Analysis and bypassing of CAPTCHA, anti-bot systems, and JavaScript protections.
• Optimization of script performance, stability, and functionality.
• Maintaining technical documentation and logging processes.

Requirements

• 2+ years of experience in automation with BAS or similar tools (ZennoPoster, Puppeteer, Playwright).
• Strong knowledge of Python: async, API interaction, data processing.
• Understanding of client-server architecture and API principles.
• Knowledge of HTTP, WebSocket, browser protocols, DevTools.
• Experience working with proxies, user-agents, cookies, headers.
• Strong analytical skills, attention to detail, flexible thinking.

Will Be a Plus

• Experience with anti-fraud systems and handling illegal traffic.
• Skills in bypassing security (Cloudflare, Akamai, CAPTCHAs, JS challenges).
• Knowledge of Linux, Docker, CI/CD, experience with Git.
• Understanding of reverse engineering and mobile app testing.

We Offer

• Work in a fast-growing international company.
• Fully remote format 
• Competitive compensation depending on experience and skills.
• Participation in complex, non-trivial R&D projects.
• Direct collaboration with the CTO and minimal bureaucracy.
• Opportunities fordevelopment in security, mobile analysis, and reverse engineering

We are looking for a BAS Developer for our partners - an international team of experts in the field of telecom analytics and mobile security.
The company specializes in detecting vulnerabilities in the SMS delivery chain, monitoring and blocking illegal traffic. Their solutions help mobile operators around the world reduce costs, improve service quality and ensure user safety.

We invite an experienced BAS Developer to join the R&D team.

Responsibilities

• Development and optimization of automated scripts in BAS (Browser Automation Studio) for testing mobile services and working with web/mobile interfaces.

• Integration of BAS logic with Python services, REST API, databases data.

• Working with anti-fraud solutions and mobile emulators.

• Analysis and circumvention of captchas, anti-bot systems, JavaScript protections.

• Optimizing the speed, stability and functionality of scripts.

• Maintaining technical documentation and process logging.

Requirements

• 2+ years of automation experience with BAS or analogs (ZennoPoster, Puppeteer, Playwright).

• Proficient knowledge of Python: asynchrony, working with APIs, data processing.

• Understanding client-server architecture and API principles.

• Knowledge of HTTP, WebSocket, browser protocols, DevTools.

• Experience with proxies, user-agent, cookies, headers.

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Experience in anti-fraud systems, working with illegal traffic.

• Skills in bypassing protections (Cloudflare, Akamai, captchas, JS-challenges).

• Knowledge of Linux, Docker, CI/CD, Git experience.

• Understanding of reverse engineering and mobile application testing.

We offer

• A job in a fast-growing international company.

• Fully remote format 

• Competitive pay, depending on experience and skills.

• Participation in complex, non-trivial R&D projects.

• Direct interaction with CTO and a minimum of bureaucracy.

• The possibility of development in the fields of security, mobile analysis and reverse engineering.