Service Assurance Expert

About the job

Role: Service Assurance Expert

Location: Helsinki, Finland

Employment type: Full-time

Be part of a mission-critical telecom service assurance team responsible for ensuring network and service quality across large-scale OSS environments. In this role, you will monitor end-to-end service performance, automate fault detection and resolution, and ensure high availability of services through proactive KPIs, dashboards, and analytics. You will work closely with operations, vendors, and engineering teams, contributing to high-speed resolutions, automation-driven improvements, and service quality enhancements in an Agile and DevOps-focused environment.

Key Job Responsibilities:

• Provide L2/L3 support for OSS Service Assurance systems, ensuring timely incident resolution.
• Monitor service KPIs, SLAs, and alarms using real-time dashboards and assurance tools.
• Perform automation scripting using Java and Python for fault detection and resolution.
• Configure, optimize, and maintain OSS assurance probes and monitoring components.
• Troubleshoot API failures, integrations, and performance issues across OSS systems.
• Use AI/analytics tools for anomaly detection and early service degradation alerts.
• Work with vendors to coordinate upgrades, patches, and issue fixes.
• Participate in Agile ceremonies and collaborate with DevOps teams for deployments.
• Create RCA documentation, operational guides, and support knowledge repository.
• Ensure adherence to ITIL processes including Incident, Escalation, and Change Management

Experience & Skills Requirements:

Must have:

• 5+ years in OSS assurance systems support.
• Proficiency in Java, Python for automation scripts.
• Knowledge of Tomcat, JDK, Spring, Hibernate frameworks.
• Familiarity with performance monitoring and SLA dashboards.
• Ability to configure and maintain OSS assurance probes.
• Experience with API testing and integration troubleshooting.
• Understanding of OSS KPIs and proactive monitoring.
• Knowledge of ITIL and incident escalation workflows.
• Familiarity with AI-based anomaly detection tools.
• Strong analytical and problem-solving skills.
• Proven experience in reducing MTTR and improving SLA compliance.

Good to have:

• Exposure to automation for fault detection and resolution.
• Worked in Agile and DevOps environments.
• Experience in vendor coordination for assurance tools.

Success Metrics & Unique Selling Proposition (USP) of The Role:

• Faster Mean Time to Resolve (MTTR) for faults and incidents.
• Improved SLA performance and service reliability.
• Higher automation coverage leading to reduction in manual troubleshooting.
• Increased proactive detections through dashboards, KPIs, and AI-based alerts.
• Positive stakeholder feedback and smoother operational readiness
• Direct impact on customer experience through real-time service quality improvements.
• Opportunity to work with next-generation assurance platforms, AI analytics, and automation.
• Involvement across multi-vendor OSS solutions, giving broad telecom domain exposure.
• Blend of operational troubleshooting, scripting development, and performance engineering.
• Strategic role bridging operations, vendors, DevOps, and engineering teams

What we offer / What’s in it for you:

• Opportunity to work on next-gen telecom solutions
• Exposure to advanced testing tools and practices
• Collaborative environment with global teams

Apply now!

Send your CV together with the motivation letter to [email protected] We will go through the applications on an ongoing basis.

At TCS, we believe in building and sustaining a culture of equity and belonging where everyone can thrive. Our diversity motto is ‘Inclusion without Exception’. We encourage people with diverse backgrounds to apply for our positions.

About Tata Consultancy Services

Tata Consultancy Services is an IT services, consulting and business solutions organization that has been partnering with many of the world’s largest businesses in their transformation journeys. Its consulting-led, cognitive powered, portfolio of business, technology and engineering services and solutions is delivered through its unique Location Independent Agile™ delivery model, recognized as a benchmark of excellence in software development.

TCS in the Nordics & Finland

TCS has been operating in the Nordic countries since 1991. The company's Finnish, Swedish, Norwegian and Danish customers are served by a total of 20,000 experts. Our customers have chosen TCS as the best IT consulting service provider in the Nordics every year. TCS has also received the Top Employer recognition in Finland for Six years in a row.

For more information, visit www.tcs.com.