Optical Network Engineer - Tieto Tech Consulting (m/f/d)

Employment: Full-time Experience level: Mid-Senior Level Job Description Tieto Tech Consulting is looking for a highly skilled and motivated a highly skilled and motivated Optical Network Engineer, a professional who will join a project within a Telecom Team for our respectful client BICS.   BICS (part of Proximus Global) operates one of the world's most extensive communication networks, carrying around 50% of global roaming traffic and connecting more than 5 billion mobile subscribers worldwide. Through partnerships with hundreds of operators, service providers, hyperscalers, and enterprises, BICS delivers connectivity across 1000+ destinations and supports a broad portfolio of services including Voice, LTE and 5G Roaming, Cloud Communications, IoT Connectivity, Messaging, Mobile Identity, Signaling, Fraud Protection, and Global SIP Trunking.  You will work with the world's largest telecom operators and technology providers, helping to ensure the quality, reliability, performance, and security of international communications, while impacting how billions of people connect, communicate, and do business every day.    Beyond traditional telecommunications, BICS is at the forefront of enabling digital transformation, cloud interconnectivity, IoT ecosystems, and next-generation mobile services, helping customers navigate the evolving global connectivity landscape.    Become a part of the BICS community at Tieto Tech Consulting that has been growing since 2010 and enjoy the comfortable and stable environment where new ideas thrive. Job Summary We are looking for a motivated Telecommunications Engineer with solid expertise in optical transport technologies, including DWDM, OTN, and Optical Cross Connect systems. In this role, you will contribute to the design, deployment, testing, and support of high-capacity telecom solutions connecting data centers, cloud environments, on-net buildings, service providers, and telecom operators worldwide.   Key Responsibilities Contribute to the design, implementation, and validation of telecom solutions built on DWDM and OTN technologies Support optical network capacity planning and optimization across the transport infrastructure Participate in the resolution of network issues and actively support service delivery Collaborate with cross-functional teams on network upgrades and customer deployments Apply industry standards and internal engineering best practices in day to day operations Maintain accurate documentation of network designs, configurations, and operational procedures Required Qualifications Bachelor's degree in Telecommunications, Electrical Engineering, IT, or Electronics 1–3 years of hands-on experience in optical networking and telecom infrastructure Working knowledge of SDH, DWDM, OTN, Ethernet, and fiber optic transmission principles Some practical exposure to optical network equipment from leading vendors (e.g., Infinera, ) Basic familiarity with network management systems and performance monitoring tools Analytical mindset with a structured approach to problem solving Team oriented with the ability to work effectively in fast paced technical environments Preferred Skills Awareness of IP/MPLS integration with optical transport layers Interest in or early experience with automation and scripting (e.g., Python) for network operations Any certification or training in optical networking technologies (e.g., Infinera XTC, G30, G40) is a plus Personal Attributes Good interpersonal and communication skills, collaborative and eager to learn, Proactive and able to work with guidance while progressively taking ownership, Comfortable operating in a project driven environment (planning, follow-up, stakeholder communication) Fluent in English, both written and spoken Additional Information At Tieto, we believe in the power of diversity, equity, and inclusion. We encourage applicants of all backgrounds, genders (m/f/d), and walks of life to join our team, as we believe that this fosters an inspiring workplace and fuels innovation. Our commitment to openness, trust, and diversity is at the heart of our mission to create digital futures that benefit businesses, societies, and humanity. Diversity, equity and inclusion | Sustainability | Tieto Stay alert to recruitment scams: • Tieto only communicates via  @tieto.com  email addresses. • We never ask candidates to pay fees or share financial details during recruitment. • If you receive a suspicious message claiming to be from Tieto, don't respond — verify it via our official careers site. • For more information visit  Important Advisory Regarding Recruitment Fraud | Tieto Blog