Zenius IT Services Pvt Ltd

Job Summary:

We are seeking a highly skilled and motivated Senior Administrator - Network & Security to join our team. This role demands a dynamic individual capable of designing, implementing, and maintaining robust network and security infrastructure for a global enterprise. The ideal candidate will possess in-depth technical expertise, exceptional problem-solving skills, and the ability to lead projects while collaborating with cross functional teams in a fast-paced environment.

Key Responsibilities

• Network Design & Implementation:

Design and implement secure network solutions tailored to enterprise needs.

Plan, document, and execute network changes and extensions.

Create and maintain corporate network architecture (LAN/WAN/WLAN/SECURITY).

Configure and manage routing protocols, including OSPF, EIGRP, and BGP.

Implement and manage VTP, VLAN, VPN, and IPSEC configurations.

Configure and maintain HSRP, DHCP, QoS, and ACLs on Cisco devices.

• Network Operations & Troubleshooting:

Operate and maintain Cisco L2/L3 switches, routers (including Nexus 9K), and Meraki wireless networks.

Monitor and troubleshoot network performance, ensuring minimal downtime.

Perform root cause analysis (RCA) and resolve network/security issues within SLA.

Define, monitor, and report KPIs for network services and devices.

• Security Management:

Operate, monitor, and configure Cisco ASA, FortiGate, and Palo Alto firewalls (including Panorama management).

Utilize Cisco Identity Services Engine (ISE) for advanced security.

Orchestrate firewall rules and underlying security configurations.

Conduct audits and improvements to meet and exceed security standards.

Design disaster recovery plans with a focus on operational security.

• Leadership & Collaboration:

Act as a project leader for network-related initiatives.

Collaborate with stakeholders and service providers to meet organizational goals

Provide mentorship and next-level support for network-related issues.

Support international deployments and manage proof of concepts or feasibility studies.

Required Qualifications:

Minimum 8 years of professional experience in networking and security roles.

Strong communication skills for interaction with stakeholders and cross functional teams.

Expertise in enterprise network design, implementation, and operations

Proven ability to handle complex issues and resolve them within tight deadlines.

Preferred Skills & Certifications:

CCNA/CCNP (mandatory)

PCNSA/PCNSE (preferred)

Technical Expertise:

Hands-on experience with SDWAN technology and network automation.

Proficiency in Aruba wireless networking.

Familiarity with VPN technologies and enterprise-grade security solutions.

Work Environment & Requirements

Five-day, on-site work schedule.

Willingness to work in shifts, including 24x7x365 support with on-call availability during weekends.

Flexibility to travel and support global infrastructure initiatives.

Soft Skills Independent, goal-oriented, and self-motivated.

Strong analytical and technical writing skills.

Excellent team player with the ability to collaborate across departments.

High-risk awareness and accuracy in execution.

Language Skills

Proficiency in English (oral and written)

We are seeking a .NET Full Stack Developer with at least 7 years of experience and expertise in ReactJS. The role involves designing and developing scalable web applications using .NET Core, C#, SQL Server, and ReactJS, focusing on both frontend and backend development.

Experience - 5-8 years

Notice - Immediately Available

Key Responsibilities:

1. Front-End Development: Develop and maintain responsive ReactJS web applications. Write clean, reusable code using ReactJS, JavaScript, and TypeScript. Create UI components using Material-UI, Bootstrap, & CSS. Optimize front-end performance and ensure cross-browser compatibility.
2. Back-End Development: Design and develop RESTful APIs and microservices using.NET Core, C#, and ASP.NET Web API. Implement authentication and authorization mechanisms (OAuth, JWT). Develop background services and scheduled jobs. Optimize API performance and implement security best practices.
3. Database Development: Design and manage relational databases using SQL Server and Entity Framework. Write complex SQL queries and optimize database performance. Work with NoSQL databases (MongoDB, Redis) as needed.
4. Cloud/DevOps Development: Deploy applications on cloud platforms like AWS. Work with Docker, Kubernetes, and CI/CD pipelines. Implement cloud-based storage, authentication, and monitoring services.
5. Development Practices: Follow Agile methodologies and participate in daily stand-ups and sprint planning. Write unit tests, conduct peer code reviews, and maintain technical documentation. Collaborate with UI/UX designers, backend developers, QA engineers, and DevOps teams.

Skills: Front-End: ReactJS, Redux, JavaScript, TypeScript, Material-UI, Bootstrap. Back-End: .NET Core, C#, ASP.NET Web API, RESTful APIs, OAuth, JWT. Database: SQL Server, LINQ, NoSQL (MongoDB, Redis). Tools: Agile (Scrum), Git, GitHub, xUnit/NUnit.

Role Overview:

Generative AI Engineer specializes in designing, developing, and managing AI systems capable of autonomously generating content such as text, images, and music. These engineers leverage deep learning and machine learning techniques to train AI models on large datasets, enabling the creation of new, original content that mimics human-like creativity.

Key Responsibilities:

1. Design and Develop AI Models: Create and optimize generative models such as Generative Adversarial Networks (GANs) and Variational Autoencoders (VAEs)
2. Natural Language Processing (NLP): Work extensively with NLP to create and refine models that understand and generate human language
3. Data Management: Manage and integrate large datasets to train generative AI models, including data pre-processing and augmentation
4. Prototype New Applications: Lead the ideation and prototyping of new AI applications and systems.
5. System Architecture: Design and implement the architecture for AI systems to ensure scalability and efficiency. Key Skills:
6. Programming: Advanced knowledge of programming languages such as Python, and proficiency with AI-centric libraries like TensorFlow, PyTorch, and Keras.
7. Generative Models: Expertise in developing and optimizing GANs, VAEs, and other generative models.
8. NLP Techniques: Familiarity with text parsing, sentiment analysis, and transformer models like GPT.
9. Data Handling: Strong skills in data pre-processing, augmentation, and synthetic data generation.
10. Problem-Solving: Ability to tackle complex, creative challenges using AI.

Preferred Qualifications:

• Education: Bachelor’s or master’s degree in computer science, AI, Machine Learning, or a related field.
• Experience: Proven experience in developing and deploying generative AI models.
• Soft Skills: Creativity, strong analytical skills, and the ability to work collaboratively in a team environment. 

Job Summary

We are seeking a skilled Snowflake Developer to design, develop, migrate, and optimize Snowflake-based data solutions. The ideal candidate will have hands-on experience with Snowflake, SQL, and data integration tools to build scalable and high-performance data pipelines that support business analytics and decision-making.

Key Responsibilities:

Develop and implement Snowflake data warehouse solutions based on business and technical requirements.

Design, develop, and optimize ETL/ELT pipelines for efficient data ingestion, transformation, and processing.

Write and optimize complex SQL queries for data retrieval, performance enhancement, and storage optimization.

Collaborate with data architects and analysts to create and refine efficient data models.

Monitor and fine-tune Snowflake query performance and storage optimization strategies for large-scale data workloads.

Ensure data security, governance, and access control policies are implemented following best practices.

Integrate Snowflake with various cloud platforms (AWS, Azure, GCP) and third-party tools.

Troubleshoot and resolve performance issues within the Snowflake environment to ensure high availability and scalability.

Stay updated on Snowflake best practices, emerging technologies, and industry trends to drive continuous improvement.

Qualifications:

Education: Bachelor’s or master’s degree in computer science, Information Systems, or a related field.

Experience:

6+ years of experience in data engineering, ETL development, or similar roles.

3+ years of hands-on experience in Snowflake development.

Technical Skills:

Strong proficiency in SQL, Snowflake Schema Design, and Performance Optimization.

Experience with ETL/ELT tools like dbt, Talend, Matillion, or Informatica.

Proficiency in Python, Java, or Scala for data processing.

Familiarity with cloud platforms (AWS, Azure, GCP) and integration with Snowflake.

Experience with data governance, security, and compliance best practices.

Strong analytical, troubleshooting, and problem-solving skills.

Communication: Excellent communication and teamwork abilities, with a focus on collaboration across teams.

Preferred Skills:

Snowflake Certification (e.g., SnowPro Core or Advanced).

Experience with real-time data streaming using tools like Kafka or Apache Spark.

Hands-on experience with CI/CD pipelines and DevOps practices in data environments.

Familiarity with BI tools like Tableau, Power BI, or Looker for data visualization and reporting.

Snowflake Architect

Job Summary: We are looking for a Snowflake Architect to lead the design, architecture, and migration of customer data into the Snowflake DB. This role will focus on creating a consolidated platform for analytics, driving data modeling and migration efforts while ensuring high-performance and scalable data solutions. The ideal candidate should have extensive experience in Snowflake, cloud data warehousing, data engineering, and best practices for optimizing large-scale architectures.

Key Responsibilities:

Architect and implement Snowflake data warehouse solutions based on technical and business requirements.

Define and enforce best practices for performance, security, scalability, and cost optimization in Snowflake.

Design and build ETL/ELT pipelines for data ingestion and transformation.

Collaborate with stakeholders to understand data requirements and create efficient data models.

Optimize query performance and storage strategies for large-scale data workloads.

Work with data engineers, analysts, and business teams to ensure seamless data access.

Implement data governance, access controls, and security best practices.

Troubleshoot and resolve performance bottlenecks in Snowflake.

Stay updated on Snowflake features and industry trends to drive innovation.

Qualifications:

Bachelor’s or master’s degree in computer science, Information Systems, or related field.

10+ years of experience in data engineering or architecture.

5+ years of hands-on experience with Snowflake architecture, administration, and development.

Expertise in SQL, Snowflake Schema Design, and Performance Optimization.

Experience with ETL/ELT tools such as dbt, Talend, Matillion, or Informatica.

Proficiency in Python, Java, or Scala for data processing.

Knowledge of cloud platforms (AWS, Azure, GCP) and Snowflake integration.

Experience with data governance, security, and compliance best practices.

Strong problem-solving skills and the ability to work in a fast-paced environment.

Excellent communication and stakeholder management skills.

Preferred Skills:

Experience in the customer engagement or contact center industry.

Familiarity with DevOps practices, containerization (Docker, Kubernetes), and infrastructure-as-code.

Knowledge of distributed systems, performance tuning, and scalability.

Familiarity with security best practices and secure coding standards.

Job Title: Senior QA Engineer/SDET

Urgently looking for Immediate Joiners

Location: Chennai or Bangalore, India

Job Overview: We are seeking a Senior QA Engineer/SDET with expertise in performance testing and test automation. The ideal candidate will have experience with JMeter, Gatling, or k6.io, and proficiency in Selenium WebDriver with Java, Cucumber, JUnit, TestNG, or Playwright.

Responsibilities:

• Design, develop, execute, and analyze performance tests for web applications using JMeter, Gatling, or k6.io. 
• Create realistic test scenarios, scripts, and workload models to simulate various user activities and system loads. 
• Conduct performance tuning and optimization activities to identify bottlenecks and improve system responsiveness, throughput, and scalability. 
• Collaborate with development teams to analyze performance test results, diagnose issues, and propose solutions. 
• Develop and maintain performance test scripts, frameworks, and tools to automate test execution and result analysis. 
• Participate in architectural and design discussions to ensure performance requirements are considered from the early stages of development. 
• Collaborate with cross-functional teams to integrate performance testing into the continuous integration and delivery pipelines.

Requirements:

• Bachelor’s degree in computer science engineering or related field.
• 6-7 years of experience in performance testing and test automation.
• Proficiency in JMeter, Gatling, or k6.io.
• Experience with Selenium WebDriver, Java, Cucumber, JUnit, TestNG, or Playwright.
• Strong analytical and problem-solving skills.
• Excellent communication and collaboration skills.
• Agile/Scrum experience is a plus.