Tieto

Nov 5, 2026

Voice & Cloud Communications Provisioning and Service Assurance Engineer

Brazil

Rio de Janeiro, Rio de Janeiro, Brazil

Job Description

Tieto Tech Consulting, is looking for a highly skilled and motivated Voice & Cloud Communications Provisioning and Service Assurance Engineer, a professional who will join a project within a Telecom Team for our respectful client BICS.

BICS 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.

Role Purpose

The engineer will support Voice and Cloud Communication Value Streams in delivering state-of-the-art solutions, with a focus on provisioning and repair activities. The candidate must have a great understanding of general Voice technologies and have working knowledge in SIP trunking implementations.

Based on business, technical, operational, and regulatory requirements, the Value Streams are designing and implementing network solutions and OSS systems within the Voice and Cloud Communication domains.

Key Responsibilities

Assure second line support for all BICS Voice & Cloud Communication services and platforms

Follow-up network availability and quality

Perform proactive and reactive maintenance actions

Suggest improvements in the proactive tasks & processes

Work and collaborate with first line and customer care team in order to find solutions for problems reported by our customers

Work and collaborate with our vendors and suppliers by reporting problems, follow up resolution and implementation in BICS network

Take part in our guard duty service (maximum once every four weeks) and support planned maintenance activities

Minimum requirements

Qualifications

Relevant degree in Electronics, Computer Sciences, IT, ICT and/or Telecommunications

3+ years experience in telecom, mainly in voice switching (mobile telecom operators or International carriers), with a focus on provisioning and repair activities

Strong knowledge and experience in Telecom technologies and ITU/ETSI telecom standards/protocols (SS7/ISUP, VoIP/SIP, RTP, MGCP)

Good understanding of network switching and routing as related to a Unified Communications and Voice over IP network

Some practical experience with NGN platforms (Sonus or Dialogic operational experience is an advantage)

Knowledge of SBCs like Ribbon SBC, Metaswitch SBC is an advantage

Good knowledge about of Transmission world and equipments

Knowledge of signalling protocol monitoring tools, protocol and trace analysers

Unix/Linux basic operational experience

Fluent in English, proficiency in written and spoken English, overall good communication skills

Excellent team player: communicate, share, and collaborate

Show flexibile ability to coordinate work with colleagues and apply rules and procedures depending on the situation

Customer oriented

Taking ownership and determination to deliver within time and expectation

Ability to explain and present technical concepts and adapt it to the audience

Self-learning: Eager to learn, quickly understands existing solutions and – if required – fast learning in an autonomous way

Good planning & organization skills

Analytical thinking & problem-solving skills

Familiar with agile methodologies or ways of working

Experience considered a plus

Experience in the (international) Wholesale Telecom Business

Knowledge on one of the following topics

Metaswitch Perimeta SBC

Ribbon SBC (SBC5K and SWe) and Softswitch

NetNumber TITAN

LRF (Location Retrieval Function) implementations for emergency call handling

FreeSWITCH application server

Multiplatform unified communications

API technologies

SIP Registrar/Authentication mechanisms

VoLTE

STIR/SHAKEN concepts

Unified communication and collaboration platforms (e.g. MS Teams)

Good understanding of telephony concepts (e.g. PBX, circuits, dial plans, routing)

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

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For more information visit Important Advisory Regarding Recruitment Fraud | Tieto Blog

Remote Type: Hybrid

Job Area: Technical and Functional Expertise

Business Unit: Tech Consulting

Languages

Voice & Cloud Communications Provisioning and Service Assurance Engineer

Job Description

Role Purpose

Key Responsibilities

Minimum requirements

Qualifications

Experience considered a plus

Additional Information

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