Sr. Full Stack Engineer

Full Stack Engineer – Build the Telecom Infrastructure for NextGen

OXIO is the world's first telecom-as-a-service (TaaS) platform. We are democratizing telecom and making it easily accessible for brands and enterprises to fully own and operate proprietary mobile networks designed to support their own customers needs. Our TaaS solution combines multiple existing networks into one single platform that can be seamlessly managed in the cloud as a modern SaaS offering. And it gets better - with full network access comes unparalleled business intelligence and insights to help enterprises better understand customer and machine (M2M) behavior. With a continuous focus on innovation, any company can build a powerful telecom presence with OXIO, and in addition help them glean unique customer insights like never before.

Job Description:

Mobile connectivity is a scarce resource for most people [1]. Its affordability varies wildly from one country to another. The cost of a 500 MB of connectivity represents 30 minutes of work for an American while it's 40 hours for a Mexican. Furthermore, when traveling, people either have to pay roaming fees or face the friction of dealing with local carriers.

Something has to change in the telecom space, and our proposition is a unified exchange on which actors such as carriers, Mobile Virtual Network Operators, IoT providers, phone makers and many more can trade connectivity to drive prices down and enable new experiences for users and businesses.

More details in our whitepaper. Get in touch to get a copy.

Our stack:

• Microservices in Go programming language

  Protobuf and gRPC for internal microservice interactions, REST when public-facing

  Docker for our microservices deployments

  Deployed on AWS for all things infra and managed services

  Data Warehousing with Airflow & Superset

  Multiple kinds of databases: MySQL, PostgreSQL, Cassandra, MongoDB

  Android and iOS Apps (Java and Swift)

  Angular and React websites

Why we need you

We're looking for a skilled and proactive Full Stack Engineer to help us continue to build our flagship BrandVNO platform. This position will play a significant role in expanding our SDK which enables our customers to build novel telecom experiences inside their own mobile applications. We are looking for someone with:

• A college or university degree related to computer science

• 8+ years of experience in Front end, and back end development

• Strong experience in Frontend stack: React/Angular, JS or C# development

• Strong experience in Backend stack: C++/Java or Go/Kotlin,

• Experience in Cloud related technologies (such as AWS, GCP or MS Azure)

• Experience with API design and development, esp REST and/or GraphQL

• Experience in Database technologies: SQL, DynamoDB, PostGres or similar

• Experience in CI/CD integration for

• Experience with unit testing and test frameworks

• Knowledge of linux environment and GIT version-control system

• Proficient with AI coding assistants (e.g., GitHub Copilot, Cursor, Claude) to accelerate implementation, testing, and refactoring while upholding accountability, security and code quality.

• Exposure to Telephony stack (SIM management, Radio metrics, Carrier privileges) is a "nice to have"

• Experience in Software Design, Architecture and Data modeling is a "nice to have"

• Competitive salary and stock option incentive program

• Company paid healthcare

• Flexible work arrangements

• Company sponsored team-lunches and company retreats

• International organization that enables you to work across boundaries, travel to different locations, and enjoy the dynamics of a rapidly growing startup

• A diverse and inclusive team.

• We welcome applicants from all backgrounds to apply regardless of race, ethnicity, age, disability status or other defining characteristics.

OXIO is committed to fostering a diverse, equitable, and inclusive workplace where all employees feel valued and empowered. We believe that diversity in all its forms drives innovation and creativity, and we strive to create an environment that reflects and celebrates the unique backgrounds, perspectives, and talents of our employees. We do not discriminate against any employee or applicant for employment based on race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, age, disability, genetic information, veteran status, or any other characteristic protected by applicable federal, state, or local law. We are dedicated to providing a work environment free from discrimination and harassment. We committed to ensuring that all qualified applicants have an equal opportunity to apply for job openings. If you need assistance or an accommodation due to a disability, please contact us at for more information.