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Make an impact by working for sectors where technology is the enabler, everything is ground-breaking and there’s a constant need to be innovative.
Create and enhance projects in Java, Python, Angular, PHP, .NET and so much more while diving in the world of Blockchain, Artificial Intelligence, Data Science, Security and Internet of Things.
Be part of the team that combines business knowledge, technological edge and a design experience. Our different backgrounds and know-how are key in developing solutions and experiences for digital clients.
Face challenges and learn other ways of thinking and seeing the world - there’s always room for your energy and creativity.
About The Role
We are looking for an OSS & Network Analyst with proficiency in Transmission technologies and a strong interest in international projects within the Telecommunications industry.
As a part of your job, you will:
Come join the Team!
Celfocus is pioneering the future of business through Next-Gen Intelligence - the convergence of data, AI, and human creativity to build more autonomous and adaptive organisations.
Guided by our core belief - Making Data Actionable - we partner with leading companies to co-create intelligent solutions that turn data into insight, agility, and business value.
Operating in over 25 countries, we bring together business experts, data scientists, and AI engineers to turn complexity into clarity and vision into measurable impact.
Founded in 2000, Celfocus is part of Novabase, listed on Euronext Lisbon.
To know more, visit www.celfocus.com
Create and enhance projects in Java, Python, Angular, PHP, .NET and so much more while diving in the world of Blockchain, Artificial Intelligence, Data Science, Security and Internet of Things.
Be part of the team that combines business knowledge, technological edge and a design experience. Our different backgrounds and know-how are key in developing solutions and experiences for digital clients.
Face challenges and learn other ways of thinking and seeing the world - there’s always room for your energy and creativity.
About The Role
We are looking for an OSS & Network Analyst with proficiency in Transmission technologies and a strong interest in international projects within the Telecommunications industry.
As a part of your job, you will:
- Capture and understand the requirements needed to implement customer’s needs.
- Clarify scope, identify assumptions, requirements and dependencies ensuring project alignment amongst all stakeholders.
- Analyze, challenge, and refine both - functional and technical - requirements from key business and IT/Telco stakeholders.
- Work closely with the Product Owner(s) and conduct workshops with business stakeholder(s) to clarify/refine requirements and solution details, prioritize requirements according to their needs, while identifying functional gaps, solution assumptions and dependencies.
- Perform functional and technical GAP analysis of solution to define solution functionality, specific configurations, business logic and integrations to satisfy requirements.
- Produce Functional Design documentation covering user journeys, integrations, business rules, data models, and end-to-end flows, ensuring requirements traceability.
- Ensure alignment with architecture standards, support development handover, obtain approvals, and refine documentation based on feedback.
- Supporting Development and Test teams during their effort estimations, low-level design, development, and testing activities.
- Participate in Pre-sales activities by preparing responses and content for the functional part of RFP/RFI clients' requests.
- Master/bachelor’s degree in engineering, computer science or equivalent.
- Experience producing technical/functional design documentation.
- Good communication skills to conduct meetings and workshops with customers, architecture, and development teams.
- Fluency in written and spoken English
- Hands-on experience (3+ years) with Transmission network configuration across major vendors (e.g., Cisco, Ericsson, Nokia, Huawei, ZTE), including associated OSS/NMS platforms.
- Solid understanding of Transmission technologies, including Microwave (MW), IP/MPLS, and Optical networks (DWDM/OTN). Understanding of legacy technologies SDH, TDM and PDH will be valued.
- Experience with typical TX configuration activities, such as: Link setup and commissioning, Capacity upgrades and reconfigurations, Network topology changes and re-routing, Integration of new nodes and expansion of existing infrastructure, Support for network transformations and modernization initiatives.
- Understanding of operational procedures related to Transmission network support, fault management, and performance monitoring.
- Knowledge of vendor data models and OSS integration principles.
- Familiarity with OSS tools and platforms related to Transmission domains (fault, performance, and inventory management).
- Knowledge of RESTful APIs and scripting languages such as Python.
- Exposure to network automation and orchestration tools.
- Ability to adapt to different contexts, teams, and Clients;
- Teamwork skills but also a sense of autonomy;
- Motivation for international projects and ok if travel is included;
- Willingness to collaborate with other players;
- Strong communication skills.
Come join the Team!
Celfocus is pioneering the future of business through Next-Gen Intelligence - the convergence of data, AI, and human creativity to build more autonomous and adaptive organisations.
Guided by our core belief - Making Data Actionable - we partner with leading companies to co-create intelligent solutions that turn data into insight, agility, and business value.
Operating in over 25 countries, we bring together business experts, data scientists, and AI engineers to turn complexity into clarity and vision into measurable impact.
Founded in 2000, Celfocus is part of Novabase, listed on Euronext Lisbon.
To know more, visit www.celfocus.com
Key Skills
Ranked by relevance
ai
artificial intelligence
restful apis
blockchain
angular
python
java
php
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- Posted
- Mar 26, 2026
- Type
- Full-time
- Level
- Not Applicable
- Location
- Lisbon
- Company
- Celfocus
Industries
IT Services
IT Consulting
Categories
Information Technology
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3 roles aligned with this opportunity
View Job Details
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Junior Developer
2026-03-31
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Engineering
View Job Details
Related
Backend Developer
2026-03-31
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PHP Developer
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