Backend Developer

TTECH

Backend Developer responsible for developing and maintaining web applications at Telefónica Tech. Collaborating with multidisciplinary teams and implementing solutions with quality and security.

Posted 4/16/2026full-timeBarueri • 🇧🇷 BrazilMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

ApacheHBaseKafkaMongoDBRedisScalaSpringSpring BootSpringBootSQL

About the role

Key responsibilities & impact

Develop and maintain web applications using back-end technologies;
Implement new features and improvements with a focus on usability and performance;
Consume and create REST APIs;
Perform integrations with relational databases (MySQL and PostgreSQL) and non-relational databases (MongoDB, Elasticsearch, Redis and HBase);
Collaborate with multidisciplinary teams (Design, Product, QA and Infrastructure);
Version code using Git and participate in code reviews;
Ensure development best practices, security and documentation;
Participate in planning meetings and contribute technical solutions.

Requirements

What you’ll need

Bachelor’s degree in Computer Science, Information Systems, Software Engineering or related fields.
Experience developing with the following languages: Java, Scala, Python. C++ is a plus.
Proficiency in back-end frameworks such as Spring Boot, Quarkus, WebFlux and FastAPI;
Knowledge of API and microservices architecture;
Experience with messaging systems (e.g., Apache Kafka and Event Hubs);
Knowledge of RAG (Retrieval-Augmented Generation) AI architecture;
Knowledge of design patterns: Circuit Breaker and Strategy;
Git and code versioning;
Familiarity with agile methodologies (Scrum/Kanban).

Benefits

Comp & perks

Choose the ideal benefit for you and your dependents through a digital platform with various categories such as Gym, Meal Voucher (VR), Food Voucher (VA), Pharmacy Assistance, Health Insurance, Dental Insurance and Life Insurance;
Corporate mobile phone — yes, a brand-new smartphone for you!
Unlimited voice and data plan — yes, unlimited! On the best mobile network, even faster with Vivo 5G!
An exclusive Vivo offer with special discounts on landline, broadband, TV and apps;
Eligible to receive an annual Bonus or PPR (profit-sharing);
Plan your future through a Private Pension plan;
Have children? You’ll be entitled to a subsidy to help with school, daycare or nanny expenses;
Work in an environment that respects your personality, dress style and who you are, allowing you to be authentic. #VemDeVocê
Work remotely up to 2 times a week. #Mobility
Flexible working hours;
Enjoy a day off to celebrate your birthday;
Participate in one of the largest corporate volunteer programs to help you make an impact in the world;
Benefit from our Educational Development Program offering partnerships with educational institutions at a discount; certifications and online courses;
Accelerate your career through our Internal Recruitment Program, in Brazil or abroad — we operate in more than 17 countries! #VivoMinhaCarreira
Access a range of initiatives to improve your physical, emotional and social well-being — #VivoBemEstar offers consultations with nutritionists, psychologists, social workers, telemedicine and much more.

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

JavaScalaPythonC++Spring BootQuarkusWebFluxFastAPIMySQLPostgreSQL

Soft Skills

collaborationcommunicationproblem-solvingplanningusability focusperformance focus

Certifications

Bachelor’s degree in Computer ScienceBachelor’s degree in Information SystemsBachelor’s degree in Software Engineering