Senior Backend Developer

Description

Job Summary: We are looking for a Backend Developer to serve as a pillar of technical excellence in evolving our high-scale ecosystem, focused on solving critical problems and ensuring architectural robustness. Key Highlights: 1. Collaborative, diverse, and dynamic environment. 2. Autonomy, learning, and accelerated growth. 3. Participating in building a real-market impact case. Having a compatible resume is important, but at **Hero**, we believe selecting a new team member goes far beyond that. What we truly seek is leadership, attitude, and alignment with our mission: **transforming the future of independent work**. We are a team that learns quickly, works collaboratively, and turns challenges into results. We value respect, curiosity, and the power of diversity—because when different perspectives converge, great ideas emerge! We are at a unique moment: doubling in size year after year, backed by a high-performing team and gaining increasing market recognition. This is the right place for those who want to learn extensively, leave their mark, and build **something truly meaningful**. **What you’ll find here:** A **collaborative, diverse, and dynamic** environment. Ample room for **autonomy, learning, and accelerated growth**. Opportunity to participate in building a **real-market impact case**. A **financially solid, award-winning, and market-recognized** company. ***About the challenge:*** ---------------------- We are seeking a **Backend Developer** to serve as a pillar of technical excellence in evolving our high-scale ecosystem. This challenge focuses on solving critical problems and ensuring the architectural robustness of complex distributed systems. You will be responsible for designing resilient solutions, optimizing infrastructure on **GCP**, and elevating the team’s technical level through hands-on practice and technical mentorship—ensuring our platforms operate with maximum performance, scalability, security, and long-term sustainability. Want to be part of this story and leave your legacy? **Join Hero!!** **Responsibilities and duties** * **Solving Critical Problems:** Lead the front line of the most complex technical challenges—from performance bottlenecks to infrastructure failures; * **High-Performance Development:** Write and maintain excellent code in **Node.js**, serving as a practical example for the rest of the team; * **System Design:** Design resilient distributed systems, ensuring communication via **Pub/Sub** and use of **Cloud Run** follow industry best practices; * **Quality Stewardship:** Refine our Code Review processes—not only correcting errors but teaching the "why" behind each improvement; * **Database Optimization:** Lead large-scale database modeling and query tuning (**PostgreSQL and Firestore**), focusing on efficiency and cost; * **Observability and Resilience:** Implement and maintain advanced monitoring strategies to ensure the system is "self-healing"; * **Technical Mentorship:** Support the growth of developers around you through *pair programming* and dissemination of best practices. **Requirements and qualifications** * Proven, deep professional experience with **Node.js** and the **Nest.js** framework; * Absolute mastery of **Google Cloud Platform (GCP)**: serverless architectures and microservices management; * Solid experience with **Event-Driven Architectures (EDA)** and messaging patterns; * Expertise in **Relational and NoSQL Databases** (advanced modeling and optimization); * Deep knowledge of **Design Patterns**, **Clean Architecture**, and **SOLID** principles; * Mastery of **Docker**, containers, and automated **CI/CD** pipelines; * Advanced skill in **Automated Testing** and end-to-end quality assurance; * Willingness to work onsite once per month at our headquarters in São Paulo. *Not required, but highly desirable:* * **Observability and SRE:** Advanced experience in Site Reliability Engineering practices and proactive monitoring (SLIs/SLOs, Error Budgets); * **FinOps:** Practical experience with FinOps strategies for cloud infrastructure cost control, visibility, and optimization; * **Data Ecosystem:** Knowledge of **data ingestion and processing architectures** (ETL/ELT), integrating backend with Big Data tools (**BigQuery**, Airflow); * **Application Security:** Strong command of secure development practices, risk mitigation, and API protection; * **Open Source Contribution:** History of contributions to open-source projects or active participation in technical communities. *Expected behavior:* * **Pragmatism:** Ability to select the best technological solution while balancing technical perfectionism and business value delivery; * **Radical Autonomy:** Ability to receive a complex business problem and independently transform it into a complete technical solution without constant supervision; * **Accountability:** Ownership mindset toward the code and infrastructure one produces; * **Influence Skills:** Ability to convince the team of technical decisions based on data and evidence—without requiring hierarchical authority; * **Learning Mindset:** Continuous interest in exploring new GCP tools and backend trends for daily application. **Additional information** * Equipment provision; * Paid leave; * Health benefit; * Dental benefit; * Accounting support benefit; * Life insurance; * Private pension; * Accident insurance; * Birthday day off; * WellHub; * Hero Baby Pause: days to spend with your newborn after birth; * Wedding pause; * Daycare reimbursement; * Hero Virtual Office; * Excellent work environment with leisure space, game room, and plenty of relaxation! #### ***Being a Hero means transforming the future of independent work*** At Company Hero, we believe being a PJ professional doesn’t mean being alone. Our mission is to bring convenience, security, and peace of mind to millions of people who have chosen this lifestyle—and we’re building a complete ecosystem to achieve it. Today, over 22 million Brazilians work as PJs. By 2030, one in two people will work under this model. For a long time, no one supported these professionals—drowning in bureaucracy and lacking assistance. **We exist to change that.** #### **What we do** At Company Hero, we bring everything a PJ professional needs into one place! From company registration and legalization to invoice and tax management. From the peace of mind of having a virtual office to health and insurance care. For companies, we’ve built technology that simplifies PJ team management. It’s the complete ecosystem for those who work as PJs: designed to eliminate bureaucracy and free up time for what truly matters—growing and thriving. #### **Our results so far** Today, we already serve over 50,000 active customers, impact 100,000 PJs, and partner with 3,000 accounting firms. Our team of 150 Heroes drives R$ 50 million in annual recurring revenue, growing between 70% and 100% yearly—with recognition from institutions such as EXAME, Reclame Aqui, Endeavor Scale-Up, and Cubo. #### **What’s ahead** We are expanding internationally, launching new products, and accelerating even further. It’s time to co-build the future of work. #### **Our MAGIC** At Hero, we don’t believe in work without delivery! True Heroes make ***M\-Á\-G\-I\-C\-A*** every day. And these superpowers guide our decisions, connect us, and push us beyond limits! * *Mission PJ is our DNA* * *Exceptional Service* * *Grit to Be the Best* * *Infinite Curiosity* * *Collaboration Without Ego* * *Joy with Professionalism* This is the flame that drives every product, every achievement, and every story built here!! ***So, do you want to make a difference in the lives of THOUSANDS of people?*** If you want to join a team that dreams big, grows fast, and believes work is about purpose and impact—come be a Hero!! Let’s transform together the lives of millions of independent professionals! **Visit our Careers Page:** https://go.companyhero.com/carreiras\-company\-hero