Optical Use Case and Test Designer (Hybrid Madrid)

UST is looking for the very Top Talent…and we would be delighted if you were to join our family! More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35.000 employees all over the world and presence in more than 35 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.

What are we looking for? We are looking for a

Optical Use Case and Test Designer

working close to one of our main clients in telco sector.

Main tasks and accountabilities will be: Senior Optical SDN/IPoDWDM/T-API Designer

What UST expects from you? Optical network design and planning: Proven hands-on experience with DWDM, OTN, ROADMs, transponders, and IPoDWDM architectures. T-API (Transport API): Deep expertise in service orchestration, network abstraction, and SDN-based transport control. YANG modeling & programmability: Strong experience designing, extending, and troubleshooting YANG modules; proficient with NETCONF, RESTCONF, and gRPC. Advanced Python: Expert in developing automation scripts, API integrations, and data processing for optical networks. Optical device CLI & lab configuration: Advanced skills for device validation, troubleshooting, and setting up laboratory environments for testing ROADMs, OTN switches, and transponders. Test planning & validation: Proven ability to design test plans and validate use cases strictly according to the latest T-API specifications, ensuring end-to-end service correctness and compliance. Good english level (B2-C1) you will be working with international teams.

Work location Hybrid Madrid. 2 or 3 days a week in the office.

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Work schedule Business Hours.

What can we offer?

✈️ 23 days of Annual Leave plus the 24th and 31st of December as discretionary days! ❤️ Numerous benefits (Health Care Plan, teleworking compensation, Life and Accident Insurances). `Retribución Flexible´ Program: (Meals, Kinder Garden, Transport, online English lessons, Health Care Plan…) Free access to several training platforms Professional stability and career plans UST also, compensates referrals from which you could benefit when you refer professionals. The option to pick between 12 or 14 payments along the year. Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime…) UST Club Platform discounts and gym Access discounts

If you would like to know more, do not hesitate to apply and we’ll get in touch to fill you in details. We are waiting for you!

In UST we are committed to equal opportunities in our selection processes and do not discriminate based on race, gender, disability, age, religion, sexual orientation or nationality. We have a special commitment to Disability & Inclusion, so we are interested in hiring people with disability certificate.