Linux L3 Core Services at Wissen Technology · Bengaluru (Bangalore) · 8 - 12 years · Profitable · Posted 5 Dec 2024

- Advanced Linux / Unix support experience required.
- · Strong shell scripting and python programming skills for SRE related activities required.
- · Understanding on Veritas Cluster Service, Load Balancers, VMWare and Splunk required.
- · Knowledge on ITIL principles required.
- · Effective oral and written communication skills, and interpersonal skills to work well in a team environment required.
- · Strong organizational and coordination skills with the ability to manage multiple tasks and high-pressure situations for outage handling, management or resolution.
- · Be available for weekend work.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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Key Responsibilities
Platform Monitoring and Reliability
- Monitor the health and performance of EDM’s advertiser, publisher, broker, and internal platforms.
- Maintain monitoring, alerting, logging, and system-health dashboards.
- Investigate platform outages, degraded performance, failed transactions, delayed data, and integration errors.
- Respond to production incidents and coordinate resolutions with the appropriate engineers and vendors.
- Perform root-cause analysis and document corrective and preventive actions.
- Help maintain defined uptime, response-time, recovery-time, and system-reliability targets.
- Identify recurring problems and recommend permanent solutions.
Cloud Infrastructure and Systems Operations
- Maintain and support cloud infrastructure, servers, databases, networks, storage, and production environments.
- Support development, staging, and production environments.
- Assist with infrastructure scaling, system upgrades, patching, backups, and disaster recovery.
- Monitor cloud usage and help control infrastructure and technology costs.
- Maintain access controls, service accounts, certificates, domain configurations, and environment variables.
- Ensure production systems are properly documented and recoverable.
Deployment and Release Support
- Support safe and consistent application deployments.
- Maintain or improve continuous integration and deployment workflows.
- Coordinate release schedules, deployment validation, rollback procedures, and post-release monitoring.
- Help engineering teams identify configuration or infrastructure problems before releases reach production.
- Maintain deployment documentation, technical checklists, and change logs.
- Reduce manual deployment work through automation.
API and Integration Support
- Monitor and troubleshoot third-party APIs, webhooks, postbacks, dialer connections, CRM integrations, payment systems, tracking platforms, and compliance services.
- Investigate failed lead deliveries, missing postbacks, duplicate records, delayed reporting, and authentication problems.
- Support ping-post, real-time bidding, call-routing, SIP, and data-transfer workflows.
- Work with advertisers, publishers, and vendors to diagnose technical integration problems.
- Create clear documentation for common integration methods and troubleshooting procedures.
- Develop alerts that identify integration failures before clients report them.
Call and Lead Operations
- Monitor call-routing, tracking, recording, attribution, and disposition systems.
- Investigate calls that fail to route, connect, record, track, or report correctly.
- Support number provisioning, routing rules, caps, schedules, geographic restrictions, buyer availability, and failover logic.
- Validate that leads, calls, and transactions are properly attributed to the correct advertiser, publisher, campaign, and payout.
- Assist with discrepancies involving call duration, billable events, conversions, payouts, and reporting.
- Help protect revenue by identifying technical leakage and delivery failures.
Data and Reporting Support
- Monitor data pipelines, scheduled jobs, reporting processes, and database performance.
- Investigate discrepancies between platform reporting, billing records, payment records, and third-party systems.
- Write and maintain database queries for troubleshooting, validation, and operational reporting.
- Assist with data corrections using controlled and documented procedures.
- Support dashboards and operational alerts for revenue, margin, consumption, conversion, and platform activity.
- Maintain appropriate controls around production data access and modification.
Security and Access Management
- Support role-based access controls, multifactor authentication, audit logging, encryption, and secure system configuration.
- Provision and remove employee, contractor, client, and vendor access.
- Monitor suspicious activity and report potential security incidents.
- Assist with vulnerability remediation, security reviews, access audits, and incident-response procedures.
- Protect consumer, advertiser, publisher, employee, and company information.
- Follow company policies for credentials, production access, sensitive data, and change management.
Automation and Process Improvement
- Automate repetitive operational tasks using scripts, workflows, APIs, and infrastructure tools.
- Reduce manual work associated with monitoring, deployments, reporting, reconciliation, onboarding, and support.
- Build internal tools that improve visibility and response times.
- Identify operational bottlenecks that affect revenue, margin, client satisfaction, or employee productivity.
- Maintain clear runbooks and standard operating procedures for recurring technical tasks.
Technical Support and Documentation
- Serve as an escalation point for complex platform and integration issues.
- Translate technical problems into clear explanations for nontechnical teams.
- Create and maintain architecture diagrams, system inventories, runbooks, troubleshooting guides, and incident reports.
- Track incidents and technical requests through completion.
- Document known issues, temporary workarounds, permanent resolutions, and system dependencies.
- Participate in an on-call rotation for urgent production incidents.
First 90-Day Priorities
The successful candidate will be expected to:
- Learn EDM’s platforms, infrastructure, integrations, call-routing systems, reporting processes, and revenue workflows.
- Document critical systems, dependencies, credentials ownership, vendor contacts, and escalation procedures.
- Review existing monitoring, alerting, backups, access controls, and deployment procedures.
- Establish baseline metrics for uptime, incident volume, response time, recovery time, deployment success, and integration failures.
- Resolve high-priority recurring production and integration issues.
- Improve alerting for call-routing failures, API errors, delayed data, failed jobs, and reporting discrepancies.
- Create runbooks for the company’s most common and highest-risk technical incidents.
- Identify at least three meaningful automation or cost-saving opportunities.
- Participate in production support and demonstrate ownership of incidents through resolution.
Performance Expectations
Success will be measured by:
- Platform uptime and reliability
- Mean time to acknowledge and resolve incidents
- Reduction in recurring production problems
- Deployment success and rollback rates
- API, postback, webhook, and call-routing reliability
- Reporting and data accuracy
- Backup and recovery readiness
- Quality of technical documentation
- Security and access-control compliance
- Reduction in manual operational work
- Infrastructure costs relative to platform volume
- Responsiveness to internal teams, clients, and technical partners
Required Qualifications
- Three or more years of experience in operations engineering, DevOps, site reliability engineering, cloud infrastructure, systems administration, or production support.
- Hands-on experience with cloud platforms such as AWS, Azure, or Google Cloud.
- Experience supporting Linux-based production environments.
- Working knowledge of networking, DNS, SSL certificates, firewalls, load balancing, and application security.
- Experience with relational databases and SQL.
- Experience troubleshooting REST APIs, webhooks, authentication, and third-party integrations.
- Familiarity with monitoring, logging, alerting, and incident-management tools.
- Experience with scripting languages such as Python, Bash, JavaScript, or PowerShell.
- Understanding of source control, deployment pipelines, and release management.
- Strong troubleshooting, documentation, and communication skills.
- Ability to prioritize incidents based on business and revenue impact.
- Availability to participate in an on-call rotation.
Preferred Qualifications
- Experience in ad-tech, mar-tech, affiliate marketing, lead generation, pay-per-call, telecommunications, or SaaS.
- Familiarity with SIP, VoIP, dialers, call-tracking platforms, routing systems, and phone-number provisioning.
- Experience with containers, infrastructure as code, and automated deployment tools.
- Experience with Docker, Kubernetes, Terraform, GitHub Actions, or similar technologies.
- Familiarity with payment processing, usage-based billing, reconciliation, and commission systems.
- Experience working with real-time bidding, ping-post, lead distribution, or high-volume transactional systems.
- Understanding of TCPA-related controls, consent records, DNC suppression, data privacy, or regulated marketing environments.
- Experience with security audits, disaster-recovery testing, and compliance documentation.
Ideal Candidate
The ideal candidate:
- Takes ownership instead of waiting for someone else to fix the problem.
- Remains calm and methodical during high-impact incidents.
- Understands the difference between applying a temporary fix and eliminating a root cause.
- Communicates technical problems clearly and directly.
- Recognizes that production reliability is a business and revenue responsibility.
- Automates repetitive work whenever practical.
- Documents systems so the company is not dependent on one person’s memory.
- Protects security and stability without creating unnecessary bureaucracy.
- Is comfortable working in a fast-moving entrepreneurial environment.
- Can manage competing priorities while maintaining attention to detail.
Site Reliability Engineer (SRE) / Production Support Engineer
Experience: 5–10 Years
Location: Hyderabad
Work Mode: Face-to-Face Drive
Shift: Rotational Shifts
Job Description
Looking for an experienced SRE / Production Support Engineer with strong experience in application and production support, incident management, monitoring, troubleshooting, and cloud operations.
Key Skills
Production Support, Incident Management, Splunk, APM, SLI/SLO, Cloud, Kubernetes, Docker, Terraform, Linux/Windows Administration, Shell Scripting and Python.
Good understanding of production deployments, batch monitoring, network/load balancing, and troubleshooting is required.
Candidates from SRE, Production Support, Application Support, Cloud Operations, or DevOps backgrounds are preferred.
Job Summary
We are looking for an experienced Site Reliability Engineer (SRE) with strong expertise in networking, DNS, load balancing, and hybrid cloud environments. The candidate will be responsible for maintaining the reliability, availability, performance, and scalability of production infrastructure and services.
The ideal candidate should have strong troubleshooting skills and experience working across network, cloud, infrastructure, and application environments.
Key Responsibilities
- Monitor and maintain the availability and reliability of production systems and services.
- Troubleshoot complex network, infrastructure, and application connectivity issues.
- Manage and troubleshoot DNS services, DNS resolution, records, and configuration issues.
- Configure, manage, and troubleshoot Load Balancers and traffic routing.
- Work with Layer 4 and Layer 7 networking and understand TCP/IP, HTTP/HTTPS, routing, and network connectivity.
- Support hybrid cloud environments involving on-premises infrastructure and public cloud platforms.
- Troubleshoot connectivity between on-premises data centers and cloud environments.
- Participate in production incidents, troubleshooting, root cause analysis (RCA), and problem management.
- Develop automation scripts and tools to reduce manual operational activities.
- Configure and maintain monitoring, alerting, and observability solutions.
- Work closely with Network, Cloud, DevOps, Security, and Application teams.
- Participate in on-call support and resolve production issues within defined SLAs.
- Document infrastructure, troubleshooting procedures, incident reports, and operational processes.
- Identify opportunities to improve system reliability, performance, and scalability.
SRE – Network / DNS / Load Balancer
Experience: 7–11 Years
Location: Hyderabad
Work Mode: WFO
Availability: Immediate Joiner
Job Description:
- Strong experience in Site Reliability Engineering (SRE) with focus on infrastructure and application reliability.
- Hands-on experience with Network, DNS and Load Balancer troubleshooting and administration.
- Monitor system performance, availability, latency and infrastructure health.
- Troubleshoot network connectivity, DNS resolution, routing and load-balancing issues.
- Experience with load balancers such as F5, BIG-IP, HAProxy or similar technologies.
- Good understanding of TCP/IP, HTTP/HTTPS, LAN/WAN, SSL/TLS and networking concepts.
- Experience with DNS technologies such as BIND, Infoblox or equivalent.
- Work on incident management, root cause analysis and problem resolution.
- Collaborate with application, network, cloud and infrastructure teams to resolve production issues.
- Experience with monitoring and alerting tools such as Splunk, Grafana, Prometheus, AppDynamics or similar tools.
- Strong troubleshooting, production support and communication skills.
- Willingness to work from Hyderabad office (WFO) and join immediately.

Site Reliability Engineer (SRE) / DevOps Engineer (Walk-In Drive)
Location: Gurgaon Experience: 3–6 Years
About the Role
We are looking for a hands-on Site Reliability Engineer (SRE) / DevOps Engineer with strong programming and automation skills.
The role will initially involve development and automation work, helping the engineer build a strong understanding of the applications and platform. Over time, the role will expand into broader DevOps and SRE responsibilities, including CI/CD, cloud infrastructure, observability, production reliability, incident management, and operational automation.
The ideal candidate should be comfortable working with both application code and production systems and should use engineering and automation to improve reliability and reduce manual effort.
Key Responsibilities
· Develop and enhance internal applications, automation tools, APIs, utilities, and platform capabilities using Python.
· Write clean, maintainable, testable, and production-ready code.
· Participate in code reviews, debugging, testing, and technical discussions.
· Build, maintain, and improve CI/CD pipelines and automated deployment processes.
· Work with Docker and Kubernetes for application deployment and operations.
· Support on prem and cloud-based application and infrastructure deployments.
· Maintain reliable, scalable, secure, and highly available production environments.
· Implement and manage monitoring, logging, alerting, and observability solutions.
· Contribute to defining and tracking SLIs, SLOs, and error budgets.
· Troubleshoot application and production issues and perform Root Cause Analysis (RCA).
· Identify recurring operational problems and address them through automation and engineering improvements.
· Support incident response, change management, deployment governance, and disaster recovery practices.
· Maintain runbooks, SOPs, incident documentation, and technical documentation.
· Collaborate with Engineering, Product, Platform, Security, Operations, and external teams.
Technical Skills
· Strong hands-on experience with Python for development and automation.
· Experience developing scripts, APIs, integrations, utilities, or backend services.
· Good understanding of software engineering principles, debugging, logging, testing, and exception handling.
· Experience with REST APIs, JSON, Git, pull requests, and code reviews.
· Strong knowledge of Linux/Unix environments and basic Windows administration.
· Good understanding of networking concepts including DNS, TCP/IP, HTTP/HTTPS, load balancing, and firewalls.
· Experience with at least one cloud platform: AWS, Azure, or GCP.
· Hands-on experience with Docker and Kubernetes.
· Experience with CI/CD tools such as GitHub Actions, GitLab CI, Jenkins, Azure DevOps, or equivalent.
· Familiarity with Infrastructure-as-Code tools such as Terraform is preferred.
· Experience with monitoring and observability tools such as Grafana, Prometheus, Power BI, or equivalent.
· Ability to analyze logs, metrics, alerts, and traces for troubleshooting.
· Understanding of SRE concepts including SLIs, SLOs, availability, reliability, error budgets, and RCA.
· Experience with JIRA, ServiceNow, and Confluence is desirable.
Preferred Experience
· 3–6 years of experience in SRE, DevOps, Platform Engineering, Cloud Engineering, or related roles.
· Strong Python development or automation experience.
· Experience supporting applications across development, deployment, and production environments.
· Exposure to cloud-native, distributed, or production-grade systems.
· Understanding of security and compliance best practices.
· Familiarity with AI-assisted engineering tools such as GitHub Copilot, Claude Code, or similar tools.
Soft Skills
· Strong analytical and troubleshooting skills.
· Engineering and automation mindset.
· Good written and verbal communication skills.
· Effective cross-functional collaboration.
· Ownership-driven approach to problem solving.
· Ability to remain structured during production incidents.
SRE / Success Engineering role focused on production operations, reliability, AWS infrastructure, monitoring, incident management, and platform support for the ZT platform.
Core responsibilities include:
- Production monitoring and debugging of live systems.
- Incident investigation, troubleshooting, and problem resolution.
- AWS cloud infrastructure support and maintenance.
- Deployment and operational support activities.
- Supporting a 24x7 production environment.
- Working with GitHub-based development workflows.
- Technical debt remediation and platform improvements.
- Customer issue investigation and support.
- Security and compliance-related work, including FedRAMP initiatives.
Preferred Skills:
AWS (especially S3 and EC2)
Strong debugging and troubleshooting skills
Site Reliability Engineering (SRE) experience
GitHub experience
Basic software development skills
TypeScript/JavaScript knowledge
C# preferred
AI experience is a plus.
Candidate should be a hands-on engineer with strong AWS, SRE, operational ownership, production support, and debugging capabilities, rather than a pure application or full-stack developer.
Primary Skills: Linux Administration, Production Support
Secondary Skills: Oracle SQL, Splunk, Grafana, AppDynamics, Cloud (OCP/AWS/Azure/GCP), Incident Management, AI/Automation.

Job Title: Senior Site Reliability Engineer
Location: Bengaluru, India (Hybrid)
Employment Type: Full-time
Experience: 6+ years
About Compnay
It is driving the electric mobility revolution through cutting-edge software, infrastructure, and professional services. Our technology empowers utilities, cities, fleets, transit agencies, and automakers to deploy EV charging infrastructure at scale safely, efficiently, and sustainably. With a global footprint spanning three continents and operations in 13 countries, we are passionate about shaping the future of sustainable transport.
Operating over 70,000 charge points globally, It is driving the transition toward cleaner, smarter, and more efficient mobility. The India team serves as a critical operational hub, supporting global platforms focused on decarbonization, digitalization, and scalable infrastructure growth.
We value purpose-driven individuals who want to make a meaningful impact and help create a cleaner, smarter, and more connected world.
Role Overview
We are seeking a skilled and proactive Site Reliability Engineer (SRE) to join our growing team. In this role, you will be responsible for maintaining system reliability, scalability, and performance across our EV charging platforms. You will collaborate closely with development and operations teams to build resilient, automated, and observable systems.
Key Responsibilities
- Ensure high availability, performance, and reliability of production systems
- Design, implement, and manage scalable infrastructure solutions
- Build and maintain CI/CD pipelines for efficient software delivery
- Monitor system health using observability tools and respond to incidents proactively
- Automate operational processes using scripting and Infrastructure as Code (IaC)
- Manage containerized environments using Docker and Kubernetes
- Collaborate with cross-functional teams to improve system architecture and resilience
- Participate in on-call rotations and incident management processes
- Continuously optimize cloud infrastructure for cost, performance, and scalability
Required Qualifications & Skills
- Bachelor’s degree in Computer Science, IT, or related field
- 4+ years of experience in Site Reliability Engineering, DevOps, or Infrastructure roles
- Strong experience with containerization (Docker) and orchestration (Kubernetes)
- Proficiency in Linux administration, networking, and system security
- Hands-on experience with cloud platforms, especially AWS (EKS, EC2, S3, RDS, Lambda)
- Experience with CI/CD tools such as Jenkins, GitLab CI/CD, or similar
- Knowledge of Infrastructure as Code tools (Terraform, AWS CloudFormation, Ansible)
- Proficiency in scripting languages (Python, Bash, or PowerShell)
- Experience with monitoring tools like Dynatrace, Prometheus, Grafana, or Zabbix
- Solid understanding of system architecture, microservices, and SaaS/PaaS models
- Strong analytical and problem-solving skills
What We Offer
- Work with some of the brightest minds in the emerging EV industry.
- Make a tangible impact in reducing carbon emissions and enabling sustainable energy.
- Freedom to suggest, implement, and innovate on systems, processes, and technologies.
- Daily ownership in a high-growth, challenging environment.
- Flexible work environment with hybrid schedules and virtualization options.
- Competitive pay and benefits including health coverage, innovative PTO program, and performance bonuses.
ob Summary
We are looking for an experienced Site Reliability Engineer (SRE) / Production Support Engineer with strong hands-on experience in application and production support, incident management, monitoring, cloud operations, automation, and infrastructure technologies.
The ideal candidate will be responsible for ensuring the availability, reliability, performance, and stability of production applications and infrastructure. The role involves troubleshooting critical production issues, monitoring applications and infrastructure, supporting deployments, managing incidents, and driving automation and operational improvements.
Key Responsibilities
- Provide L2/L3 Application and Production Support for critical business applications.
- Monitor production applications, infrastructure, batch jobs, and system health.
- Handle and troubleshoot critical production incidents, ensuring timely resolution and minimal business impact.
- Participate in Incident, Problem, and Change Management processes.
- Perform root-cause analysis (RCA) for recurring and major production issues.
- Troubleshoot issues related to applications, networks, load balancers, databases, operating systems, and infrastructure.
- Monitor application and infrastructure performance using Splunk, APM, and other monitoring tools.
- Create and maintain Splunk queries, dashboards, alerts, and operational monitoring.
- Support production deployments, including Blue-Green and Canary deployment strategies.
- Work with cloud infrastructure and perform day-to-day Cloud Operations activities.
- Manage and troubleshoot containerized applications using Docker and Kubernetes.
- Work with Terraform / Infrastructure as Code (IaC) for infrastructure provisioning and automation.
- Support Linux and Windows server administration.
- Develop and maintain Shell scripts and Python automation scripts to reduce manual operational activities.
- Monitor and analyze SLIs, SLOs, Error Budgets, and Burn Rates.
- Identify reliability risks and proactively implement solutions to improve system availability and performance.
- Collaborate with Development, DevOps, Infrastructure, Network, Database, and Cloud teams during production incidents.
- Leverage GenAI tools such as GitHub Copilot, Claude, or similar tools to improve troubleshooting, automation, documentation, and operational efficiency.
- Participate in on-call/shift-based production support as required by business and customer needs.
Mandatory / Key Skills
- Production / Application Support
- Incident Management
- Production Monitoring & Batch Monitoring
- Splunk – Queries, Dashboards & Monitoring
- APM / Application Performance Monitoring
- SLI / SLO / Error Budget / Burn Rate
- Cloud Operations
- Kubernetes
- Docker
- Terraform / Infrastructure as Code
- Linux & Windows Administration
- Shell Scripting
- Python Scripting / Automation
- Production Deployment Support
- Blue-Green & Canary Deployments
- Network, Load Balancing & Database Troubleshooting
Application Production Support with SRE, Linux/Unix, Splunk/AppD/Grafana, Troubleshooting
WFO-Immediate
8 to 12 Yrs
Bangalore/Hyderabad








