**We are looking for candidates who enjoy taking on challenges.** We are seeking a Mid-Level JavaScript Developer to join the team responsible for evolving our **OSS (Operations Support Systems)**, with a focus on **automation**, event correlation, and **proactive** network operations diagnostics. This professional will play a **strategic** role alongside the NOC, **developing solutions that transform large volumes of operational data into intelligent actions**, directly contributing to the stability, availability, and quality of services delivered to thousands of customers. This is a **technical** position with a strong **analytical** orientation, requiring an understanding of the telecommunications environment, **logical thinking**, and a focus on **performance, scalability, and reliability** of **solutions.** **People with Disabilities and/or Rehabilitated Individuals — Your Talent Is Precious to Us!** We are committed to building a diverse and inclusive talent pool. We believe true innovation stems from diversity and inclusion. Our mission is to simplify life through technology and connectivity, and to achieve this, we value every individual who contributes to our success. **We Cultivate a Growth-Oriented Environment:** Interpersonal relationships are highly valued. Determination to achieve results. Transparency in all our actions and communications. **Responsibilities and Duties** * Develop and maintain backend services focused on automating network operational processes. * Create self-diagnostic routines, performing queries and checks on network equipment via SSH, Telnet, or SNMP (interface status, optical power, connectivity, among others). * Develop event correlation logic, analyzing multiple alarms to identify root causes of incidents. * Optimize queries and data processing for real-time log and event analysis. * Integrate systems and NOC operational tools. * Document workflows, automation rules, and developed solutions. * Provide technical support to more junior developers, contributing to code standardization and quality. **Requirements and Qualifications** **Technical Requirements** * Solid experience with JavaScript (ES6+) and Node.js. * Experience developing and consuming RESTful APIs. * Knowledge of relational databases (PostgreSQL or MySQL) and NoSQL databases (MongoDB or Redis). * Experience with code versioning (Git). * Familiarity with Linux environments (file manipulation, services, and shell scripting). * Ability to write clean, scalable, testable, and well-documented code. **Preferred Qualifications** * Knowledge of TypeScript. * Prior experience in telecommunications companies, ISPs, or network operations environments (knowledge of GPON, OLT, Backbone). * Experience with monitoring and observability tools (Zabbix, Prometheus, Grafana) and consuming their APIs. * Knowledge of network protocols such as SNMP, TR-069, and SSH. * Experience with message queues and messaging systems (RabbitMQ, Kafka) for asynchronous event processing. * Basic knowledge of containers and Docker environments. **Behavioral Profile** * Strong analytical ability and logical reasoning. * Proactivity in identifying and resolving problems. * Organization and attention to detail in critical environments. * Good communication skills for interaction with technical and operational teams. * Ability to work collaboratively and operate effectively in high-availability, mission-critical environments. **Additional Information** **Regarding benefits, we offer:** * RVI — Incentive-based variable compensation, * Profit and Results Sharing Program — PLR; * Childcare allowance; * Life insurance; * Meal voucher; * Food allowance; * Mobility allowance; * Unimed health plan; * Dental plan; * Discounts at gyms (TotalPass); * C4Life; * Internet and mobile phone plans with discounts. Nice to meet you — we are Brasil TecPar! For three decades, we have pursued the exciting mission of **simplifying life through technology and connectivity**, transforming Brazil’s digital future. We are a diverse team of tech-passionate professionals united by a commitment to creating impactful solutions that improve people’s lives across the country. We are recognized by the ABRINQ Foundation as a child-friendly company. Additionally, we hold certifications from ISO 27001, KINDNS, the Brazilian GHG Protocol Program, and Move for Good! By Q2 2025, we grew by 70.5% and have already connected over 1 million customers nationwide. Today, we have more than 4,000 TecFriends spread across 8 Brazilian states. Every voice is valued, every idea is an opportunity to make a difference, and **every effort is recognized through semiannual Profit and Results Sharing.** Here, you’ll have the freedom and support to explore your passions, develop your skills, and reach your full potential. More than connecting — it’s about continuous evolution. Shall we grow together? \#JoinUsAsATecFriend