{"id":132861,"url":"https://alion.io/job/nokia-software-engineer-optical-networks","title":"Software Engineer - Optical Networks","company":{"id":17345,"name":"Nokia","domain":"nokia.com","url":"https://alion.io/company/nokia","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"A","score":97,"open_postings":63,"ghost_share":0.032,"stale_share":0.19,"repost_share":0.095,"time_to_fill_p50_days":5,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Lisbon, Portugal"],"countries":["PT"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":33000,"max_usd":84000,"period":"year","method":"role_country_seniority_unknown","sample_n":105},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Bash","optional":false},{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Git","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"STL","optional":false}],"status":"live","first_seen_at":"2026-08-14T00:00:00Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-10-18T03:33:27Z","board_verified":true,"closed_at":null,"days_open":65,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":65},"description":"In a world increasingly driven by AI, cloud services, and data-intensive applications, optical networks play a critical role in enabling global connectivity.\nAs part of Nokia's Optical Networks organization, strengthened by the acquisition of Infinera, you will join a leading R&D team developing next-generation networking technologies used by service providers, enterprises, and hyperscalers worldwide.\nWe are looking for passionate software engineers who enjoy solving complex technical challenges, building scalable and high-performance systems, and continuously improving their engineering skills. Depending on your experience level, you will contribute to the design, development, optimization, and evolution of carrier-grade software solutions while collaborating with highly skilled engineers in a global environment.\nThis is an opportunity to learn from industry experts, take ownership of meaningful technical challenges, and contribute to technologies that operate at global scale.\n Design, develop, and maintain high-performance software components using Modern C++.\nContribute to the design and evolution of software solutions for networking and systems applications.\nDevelop robust, scalable, and maintainable software that meets demanding performance and reliability requirements.\nWork on multi-threaded and distributed systems challenges.\nParticipate in code reviews, testing activities, and engineering best practices to ensure software quality.\nCollaborate with cross-functional teams, including Systems Engineering, Product Management, and global R&D organizations.\nTroubleshoot, debug, and resolve software issues across different layers of the system.\nContribute to continuous improvement initiatives and adoption of modern development tools and methodologies.\nShare knowledge and collaborate with teammates in a culture of learning, innovation, and technical excellence.\nMore experienced candidates will have opportunities to influence architecture, mentor colleagues, and drive technical initiatives.\n Required:\nExperience developing software using C++ (academic, internship, or professional experience will be considered).\nGood understanding of object-oriented programming, data structures, algorithms, and software design principles.\nExperience or familiarity with Linux-based development environments.\nKnowledge of multi-threading, concurrency concepts, or distributed systems.\nFamiliarity with STL and modern software development practices.\nExperience using version control systems such as Git.\nStrong analytical, problem-solving, and debugging skills.\nExcellent communication skills and ability to collaborate in international teams.\nBSc or MSc in Computer Science, Telecommunications, Electrical Engineering, Software Engineering, or a related discipline.\nPreferred:\nProfessional experience with Modern C++ (C++11/14/17/20).\nExperience with Boost libraries.\nFamiliarity with automated testing, CI/CD pipelines, and software quality practices.\nExperience in telecommunications, networking, or optical transport technologies.\nKnowledge of Optical Networks, DWDM, Layer 0/1 technologies, ROADM, WSS, or related domains.\nExperience with distributed, embedded, or real-time systems.\nKnowledge of Python, Bash, or other scripting languages for automation.\nExposure to cloud-native technologies, containerization, or DevOps practices.\nExperience leading technical initiatives, mentoring engineers, or contributing to software architecture.\nWhat We Value:\nStrong ownership and accountability.\nCuriosity and willingness to 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