
Job Overview:
We are seeking an experienced JavaScript Reverse Engineer with deep expertise in reverse engineering obfuscated JavaScript code and bypassing modern web security techniques. This role requires a strong background in both JavaScript and Python, as well as advanced knowledge of browser automation and fingerprinting bypass techniques.
Key Responsibilities:
- Reverse engineer and deobfuscate JavaScript code and APIs for web scraping.
- Bypass popular anti-bot solutions such as Akamai, Datadome, Incapsula, Cloudflare and PerimeterX.
- Work with fingerprinting bypass methods, including TLS and Canvas fingerprinting.
- Reverse engineer and bypass JS Virtual Machine Protection (VMP) techniques.
- Implement custom Captcha solving solutions, utilising frameworks such as YOLO v8 or EfficientNet.
- Employ advanced browser automation techniques to optimise performance while bypassing web fingerprinting methods.
- Work with network engineering principles and have an in-depth understanding of the TCP/IP stack.
- Utilise MITM (Man-in-the-Middle) techniques to inspect and analyse Android app network traffic for scraping purposes.
- Leverage Python for scripting, automation, and integration with reverse engineering tasks.
Required Skills and Qualifications:
- 5+ years of experience with JavaScript and Web Scraping.
- Proven expertise in reverse engineering obfuscated JavaScript code and APIs.
- Strong knowledge of bypassing anti-fingerprinting techniques, including TLS and Canvas fingerprinting.
- Prior experience in overcoming anti bot solutions like Akamai, Datadome, Incapsula, and PerimeterX.
- Adequate understanding of JavaScript Virtual Machine Protection (JS VMP).
- Experience with custom Captcha solving solutions such as YOLO v8 or EfficientNet.
- Expertise in browser automation for efficient bypass of fingerprinting.
- Solid foundation in network engineering, with deep knowledge of the TCP/IP stack.
- Experience in using MITM techniques to inspect network traffic, especially for Android apps.
- Proficiency with containerisation and orchestration tools like Docker and Kubernetes.
Preferred Qualifications
- Experience working with security research and web vulnerability assessments.
- Familiarity with web scraping ethical guidelines and best practices.
- Strong collaboration skills and ability to work in an agile team.

Similar jobs
We are hiring for ASP. NET MVC/Core Developer.
Join Us from Anywhere in India!
Experience Range: 1-3 years
Role and Qualifications:
- Essential: Proficiency in ASP. NET MVC & ASP. NET Core, with a minimum of 1 year of hands-on experience
- Familiarity with. NET framework versions starting from. NET 4.5 and onwards
- Strong grasp of C#, JavaScript, TSQL, HTML, ASP. NET MVC, ASP. NET Core, ASP. NET Web API, and MSSQL
- Effective verbal and written communication skills
- Even candidates with foundational knowledge are encouraged, including freshers
What We Offer:
- Competitive salary increments based on your current CTC
- Additional referral bonuses
- Collaborative and supportive work environment
- Embrace remote work options
- Engage with cutting-edge technologies
- Salary commensurate with qualifications - no limitations for the right candidate
- Flexible work timings to accommodate project needs
- Performance-based bonuses
If you're an ASP. NET developer ready to contribute your skills within a dynamic environment, we're excited to welcome you, regardless of where you're located. Your expertise will be valued as we navigate the latest technologies and celebrate a culture of excellence.
Feel free to reach out and explore this opportunity further!
Responsibilities:
● Design, develop, and maintain scalable backend services and APIs using Java and Spring
Boot.
● Create and optimize SQL database schemas and queries in PostgreSQL to ensure efficient
data storage and retrieval.
● Implement RESTful APIs to facilitate seamless communication between frontend and backend
components.
● Configure and manage Nginx web servers to efficiently handle incoming requests and improve
application performance.
● Deploy and manage applications on AWS or GCP, ensuring scalability, reliability, and
security.
● Configure and optimize message broker systems using Kafka for real-time data processing
and communication.
● Containerize applications using Docker for easy deployment, scaling, and management.
● Create detailed Low-Level Designs (LLDs) and High-Level Designs (HLDs) to guide the
development and architecture of backend systems.
● Automating CI/CD pipelines and streamlining the software development lifecycle.
● Integrate AI/ML models into backend workflows using Python, PyTorch/TensorFlow, or
third-party AI APIs.
● Leverage AI tools (e.g., OpenAI APIs, Hugging Face, AWS AI services) to build intelligent
features.
● Collaborate closely with frontend developers, product managers, data scientists, and other
stakeholders to deliver high-quality AI-powered solutions.
● Monitor and troubleshoot production systems to ensure optimal performance, reliability, and
uptime.
What We’re Looking For:
● Bachelor’s degree in Computer Science, Engineering, or related field.
● 3-5 years of experience in backend development.
● Proficiency in Java, Spring Boot, PostgreSQL, SQL, and GitActions.
● Strong understanding of RESTful API design principles and best practices.
● Experience with configuring and optimizing Nginx web servers.
● Experience with configuring and optimizing Kafka service.
● Hands-on experience with AWS or GCP.
● Familiarity with Docker containers and container orchestration.
● Ability to create comprehensive Low-Level Designs (LLDs) and High-Level Designs (HLDs)
for backend systems.
● Experience with Python for AI/ML model integration in backend services.
● Familiarity with AI platforms and APIs such as OpenAI, Hugging Face, AWS AI/ML, or GCP
Vertex AI.
● Excellent problem-solving skills and attention to detail.
● Strong communication and collaboration skills, with the ability to work effectively in a team
environment.
Preferred Qualifications:
● Knowledge of microservices architecture and related technologies.
● Experience with cloud-native development and serverless computing.
● Understanding of software development best practices, including Agile methodologies
Experience: 3-5 Years Experience
Skills:
Javascript, Node JS, HTML, CSS, Advanced JS
Location : Ahmedabad
Roles and Responsibilities
- Develop and manage highly trafficked, highly scalable web properties with PHP5 using Laravel/ZEND CodeIgniter/Yii/Symfony framework.
- Understand the specifications to define system requirements.
- Collaborate and communicate project updates and progress to team members and clients.
- Analyze, design, code, debug, test, document and deploy changes to the system.
• 3+ years of hands-on software engineering experience in Node.js and Typescript (including
Express, Feathers.js or similar)
• Proficient at programming and interacting with APIs
• Strong understanding of production systems, especially in AWS
• Deep understanding of mobile backend infrastructure including service-oriented or microservice architecture
• Customer-focused, reacts well to changes, work with teams and able to multitask
• Must be a self-starter who can work well with minimal guidance and in fluid environment
Bonus if you have the following:
• Experience in React and/or React Native
• Active contributor to developer communities like Stackoverflow, Topcoder, Github etc.
• Worked with Linux
• Prior startup experience
•Development experience with object oriented JavaScript, ES6 Features
•Development experience with nodejs libraries like express, MySql, mongoose etc,
•Understanding the nature of asynchronous programming
•Hands on experience with MySql, MongoDB [RDBMS, No SQL DB]
•Able to write complex MySql queries, Stored procedure
•Familiarity with API optimization techniques
•Collaborating with front-end developers on the integration of elements.
•Must have knowledge of GIT, POSTMAN
•Good to have knowledge of KAFKA, REDIS
Tech9 India is looking for a mid-senior software engineer who is an expert with Nodejs and MongoDB. This is a great opportunity to work with a company that has a primary focus of making our customers happy by delivering value, without all the burdensome policies and rules that have become typical for outsourced software development companies.
If you are looking for a change this is what we can promise you:
- You will have challenging problems to solve
- You will have flexibility and autonomy to solve problems and deliver solutions
- We will provide a highly collaborative environment with skilled and super friendly teammates
- We will fully support you in developing software the right way
- We won't burden you with useless policies and procedures
- We will provide you the tools you need to do your job right
If this sounds attractive please apply! We'd love to talk to you!
Responsibilities:
- Work with cross-functional teams, using agile practices, write, debug and deliver code
- Produce solid, thoroughly tested features
Requirements:
- Mid level roles require at least 3 years of experience in Nodejs senior roles require at least 4 years of experience with Node.
- At least 3 years of experience developing in HTML and CSS
- Strong verbal and written communication skills
- Experience working with product managers and scrum teams to effectively translate business requirements into workflows
- Demonstrated ability to remove problems and overcome roadblocks
- Cloud platform experience
- Hands-on experience with APIs, microservices
- Multiple years of experience delivery solutions through an Agile delivery methodology
- Ability to understand complex systems and solve challenging analytical problems
- Ability to leverage multiple tools and programming languages to analyze and manipulate data sets from disparate data sources
- Strong problem solving skills and critical thinking ability







