Monday, October 27, 2025
Nokia

Senior Software Engineer – Optical & Subsea Systems

Posted: 2 days ago

Job Description

Job DescriptionIn an increasingly connected world, the pandemic has highlighted just how essential telecom networks are to keeping society running. The Network Infrastructure group is at the heart of a revolution to connectivity, pushing the boundaries to deliver more and faster network capacity to people worldwide through our ambition, innovation, and technical expertiseJoin Optical Networks division, where innovation meets scale in the AI-driven data center era. With the recent acquisition of Infinera, we’ve united two industry leaders to create an optical networking powerhouse—combining cutting-edge technology with proven leadership to redefine the future of connectivity.Infinera is now part of the Nokia Corporation and its subsidiaries. When you apply, the information you share will be handled with care and used only for recruitment purposes within the group.Working in Rapid Response Team this role needs to work and operate cross-functionally with SW/ FW / HW Engineering, Product Line Management (PLM), Architecture, Software Verification Team (SVT), and Global Technical Support (GTS) Teams to effectively and efficiently resolve issues affecting Customers Optical networks including subsea. As an RRT Engineer you will be involved in recovery efforts during a critical outage, analyzing logs to isolate faults, determining root cause, and working towards defect resolution. In addition, RRT Engineer will be part of SW/product release cycle, providing software solutions through product enhancement, debuggability requirement etc during release planning discussions. An RRT Engineer will also work closely with SVT to optimize their test plans & RCCA discussions.How You Will Contribute And What You Will Learn Good subsea troubleshooting and debugging skills to Handle worldwide field escalations into Optical Systems Engineering and subsea development teams. Investigate and troubleshoot customer issues in both Production and Lab environments to Perform efficient and detailed RCA of field issues. Provide quick post FCS solutions to customer issues completing root cause analysis, temporary workaround for recovery and work with development team for corrective actions. Produce and deliver post-mortem actions to prevent issues in subsea products by incorporating lessons learned from the field. Active participation and Contribution to System Development Lifecycle processes (Product/system requirement review discussions, Software Design implementation discussions, Peer code review, Work with the Product management team for Customer scenarios and use cases). Cross-functional coordination with multiple stakeholders within different Engineering and Services teams to preserve customer confidence / experience. Discussing with Arch team to conclude on the necessary changes needed in Architecture if necessary. Providing on-demand suggestions to Arch Team on Customer usage of Products to plan for Feature considerations. Increase ability of services teams to reduce escalations to Engineering by Building tools, knowledge bases, debug recipes. Implement process changes in Engineering org to prevent breakages, checklists, regression suites, drive custom solutions. Key Skills And Experience Experience of subsea transmission technologies including spectral sharing. Engineering degree or Master from CS, EC with excellent grades from reputed institutes. In depth knowledge of software systems, development, and operationalization in the hyperscale Data Center environment. Including Agile development, SDN, DevOps, and CI/CD environments. Excellent design analysis skills, including experience with software modeling, understanding of platform boot-up and device drivers, hardware-software interactions (e.g. interrupt architectures etc) and dependencies, high-availability, software reuse, performance, testability, and extensibility. Experience in either QNX or Linux RTOS Operating systems is a must. Deep understanding of optical fiber networking including transponders, OLS, Sub-sea and optical fiber transmission properties In-depth knowledge of optical network systems including L1 layer protocols like OTN, Fiber Channel, Ethernet, SONET/SDH, L0 OADM/DWDM/CWDM/ROADM/FOADM, technologies and Management Interfaces like Netconf, Restconf, gRPC, etc. Self-Driven and willing to take own initiatives and decision making and ability to perform under pressure. Understanding of coherent communications systems, including experience with QPSK, 16QAM, and 64QAM, as well as coding and forward error correction algorithms. Good experience with ROADM, EDFA, Raman Amplifiers and Coherent Transponders and strong understanding of subsea deployment scenarios. Strong understanding of subsea spectra management. Expertise in programming language C, C++ and .Net programming. Proficiency MS tools (Excel, PowerPoint and Word). Highly detail-oriented, excellent analytical and troubleshooting skills, Strong problem-solving skills, applicable to large and complex network scenarios. About Us Come create the technology that helps the world act togetherNokia is committed to innovation and technology leadership across mobile, fixed and cloud networks. Your career here will have a positive impact on people’s lives and will help us build the capabilities needed for a more productive, sustainable, and inclusive world.We challenge ourselves to create an inclusive way of working where we are open to new ideas, empowered to take risks and fearless to bring our authentic selves to workWhat we offerNokia offers continuous learning opportunities, well-being programs to support you mentally and physically, opportunities to join and get supported by employee resource groups, mentoring programs and highly diverse teams with an inclusive culture where people thrive and are empowered.Nokia is committed to inclusion and is an equal opportunity employerNokia has received the following recognitions for its commitment to inclusion & equality: One of the World’s Most Ethical Companies by Ethisphere Gender-Equality Index by Bloomberg Workplace Pride Global Benchmark At Nokia, we act inclusively and respect the uniqueness of people. Nokia’s employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law.We are committed to a culture of inclusion built upon our core value of respect.Join us and be part of a company where you will feel included and empowered to succeed.

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