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Senior Systems Administrator JD – VPN

As a Senior Systems Administrator, you will be working to enhance and support the VPN, DNS and proxy infrastructure of a highly distributed network of systems that serve as the backbone of global VPN platforms. Your primary role will be to improve performance, create new solutions for scalability and enhance existing processes.

Professional Experience

• Senior-level Linux system administration in high-traffic, fault-tolerant environments (typically 5-7 years).
• Recent team lead or mentoring responsibility.

Technical Expertise

• Deep Linux knowledge (CentOS/RHEL or similar), strong command-line proficiency.
• Virtualization: KVM / QEMU.
• Containers & orchestration: Docker; Swarm/Kubernetes (EKS, ECS).
• Scripting & automation: Bash and Python.
• Experience with several of the following: Salt / Salt Stack, Ansible, Puppet, Terraform, Vault.
• CI/CD: GitLab pipelines and related tooling.
• Hands-on with tools such as: Prometheus, Grafana, Nagios, Elasticsearch, Logstash, Kibana (ELK).
• Datacenter infrastructure and performance tuning for optimal system health.

Networking & Security

• Strong understanding of TCP/IP, HTTP, DNS, routing, and packet analysis.
• Firewall and traffic control: iptables / ipsets.
• VPN protocols and proxy technologies: WireGuard, OpenVPN, StrongSwan.

Personal Attributes

• Self-starter who enjoys working independently and close collaboration with peers with minimal supervision.
• Eager problem solver who actively seeks process and performance improvements.
• Comfortable reading and writing technical documentation in English; day-to-day team communication is in English
• Service-oriented teammate with excellent verbal and written communication skills; able to convey complex technical concepts to non-technical stakeholders.

Desired (Nice-to-Have)

• Experience administering Elasticsearch/Grafana/Kibana clusters at scale.
• Familiarity with formal change-management policies and processes.
• Demonstrated success supporting or evolving multiple customer-facing security products.

Key Responsibilities

• Design, enhance, and maintain internet-security platforms (VPN, DNS, proxy) through robust tooling and automation.
• Augment system monitoring for better availability, visibility, alerting, and proactive capacity planning.
• Investigate, troubleshoot, and resolve production incidents surfaced by internal monitoring or external reports.
• Participate in architecture and design discussions to define scalable solutions for new and existing services.
• Deliver project work for new business initiatives: environment build-out, infrastructure upgrades, product enhancements, and new-feature rollouts.
• Collaborate with peers on complex technical challenges while also executing individual contributor tasks.
• Participate in an 1-in-5 on-call rotation covering evenings, weekends, and holidays as business needs dictate.

Roles and Responsibilities

1. Collaborate with our team of developers to design and build innovative Android applications.
2. Write clean, efficient, and maintainable code in Kotlin, Android, and Java.
3. Conduct thorough testing and debugging to ensure the functionality and usability of our apps.
4. Stay up-to-date on the latest trends and technologies in mobile app development.
5. Assist with the documentation and maintenance of code repositories.
6. Participate in team meetings and contribute ideas for improving our app development processes.
7. Take on ad-hoc tasks and projects as needed to support the overall success of the team.

Points to Note:

1. Only candidates from technical backgrounds like B.Tech/M. Tech (CS) & BCA, and MCA will be shortlisted.
2. It is important to ensure that you have successfully completed an internship or relevant projects in Android development.

Skills Required:

- Good experience with programming language Python
- Strong experience in Docker.
- Good knowledge with any of the Cloud Platform like Azure.
- Must be comfortable working in a Linux environment.
- Must have exposure into IOT domain and its protocols ((Zigbee & BLE ,LoRa,Modbus)
- Must be a good team player.
- Strong Communication Skills

• Designing, implementing and maintaining Java-based applications

• Contributing in all phases of the development lifecycle

• Writing testable, scalable and efficient code

• Test and debug new applications and updates

• Maintain up to date code documentation

• Participating in code reviews
  Should have worked on Springboot and Hibernate

Rules & Responsibilities:

• Design, implement and maintain all AWS infrastructure and services within a managed service environment
• Should be able to work on 24 X 7 shifts for support of infrastructure.
• Design, Deploy and maintain enterprise class security, network and systems management applications within an AWS environment
• Design and implement availability, scalability, and performance plans for the AWS managed service environment
• Continual re-evaluation of existing stack and infrastructure to maintain optimal performance, availability and security
• Manage the production deployment and deployment automation
• Implement process and quality improvements through task automation
• Institute infrastructure as code, security automation and automation or routine maintenance tasks
• Experience with containerization and orchestration tools like docker, Kubernetes
• Build, Deploy and Manage Kubernetes clusters thru automation
• Create and deliver knowledge sharing presentations and documentation for support teams
• Learning on the job and explore new technologies with little supervision
• Work effectively with onsite/offshore teams

Qualifications:

• Must have Bachelor's degree in Computer Science or related field and 4+ years of experience in IT
• Experience in designing, implementing, and maintaining all AWS infrastructure and services
• Design and implement availability, scalability, and performance plans for the AWS managed service environment
• Continual re-evaluation of existing stack and infrastructure to maintain optimal performance, availability, and security
• Hands-on technical expertise in Security Architecture, automation, integration, and deployment
• Familiarity with compliance & security standards across the enterprise IT landscape
• Extensive experience with Kubernetes and AWS(IAM, Route53, SSM, S3, EFS, EBS, ELB, Lambda, CloudWatch, CloudTrail, SQS, SNS, RDS, Cloud Formation, DynamoDB)
• Solid understanding of AWS IAM Roles and Policies
• Solid Linux experience with a focus on web (Apache Tomcat/Nginx)
• Experience with automation/configuration management using Terraform\Chef\Ansible or similar.
• Understanding of protocols/technologies like Microservices, HTTP/HTTPS, SSL/TLS, LDAP, JDBC, SQL, HTML
• Experience in managing and working with the offshore teams
• Familiarity with CI/CD systems such as Jenkins, GitLab CI
• Scripting experience (Python, Bash, etc.)
• AWS, Kubernetes Certification is preferred
• Ability to work with and influence Engineering teams

Job Description

We are looking for an iOS/Mac developer responsible for the development and maintenance of applications aimed at a range of iOS devices including mobile phones, tablets and computers. Your primary focus will be development of iOS/Mac applications and their integration with back-end services.

 Responsibilities

• Design and build applications for the iOS/Mac platform
• Ensure the performance, quality, and responsiveness of applications
• Collaborate with a team to define, design, and ship new features
• Identify and correct bottlenecks and fix bugs

Skills

• Experience with Objective-C or Swift and Cocoa Touch.
• Experience with iOS frameworks such as Core Data, Core Animation, Foundation, Web Kit etc.
• Experience with offline storage, threading, and performance tuning
• Familiarity with RESTful APIs to connect iOS applications to back-end services
• Experience with third-party libraries and APIs & Other tools SMS, GPS, APNS, Email, XML parsing, GUI, UI designs, writing XML classes, UIKit, etc
• Understanding of Apple’s design principles and interface guidelines
• Experience with performance and memory tuning with tools.
• Familiarity with cloud message APIs and push notifications
• Proficient understanding of code versioning tools (Git or SVN)