Description
Omie’s purpose is to bring prosperity to the Brazilian entrepreneurial ecosystem. Therefore, we seek individuals with a growth mindset—valuing profiles that demonstrate adaptability, collaborative spirit, and motivation driven by innovation and continuous learning.
Join the journey of one of the fastest-growing technology companies in Brazil!
**\#JoinOmie**
**Responsibilities and Duties**
Omie is one of the fastest-growing ERPs in Brazil, processing a massive volume of daily transactions. We are looking for a **Senior Backend Developer** to assume a critical role in our Product Sales module—the engine responsible for ensuring our customers’ goods keep moving.
You will work at the core of our proprietary platform, developing and maintaining the mechanisms for issuing, transmitting, and returning fiscal documents (NF\-e, NFC\-e, MDF\-e). This is a challenge for those who thrive under high-volume, mission-critical systems. You will handle direct communication with SEFAZ web services, contingency management, intensive XML manipulation, complex tax rules (ICMS, IPI), and system adaptation to the new framework of the Tax Reform. If you master PHP, excel at optimizing SQL Server to handle billing peaks, and leverage AI to code at an advanced level, we want to talk to you.
**What You’ll Do Daily**
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* **SEFAZ Integration Engineering:** Develop, maintain, and scale integrations with SEFAZ web services (authorization, cancellation, correction letters, invalidation), ensuring resilience and stability.
* **Fiscal Document Lifecycle:** Architect robust logic for complex operations such as transmissions, returns, triangular transactions, and contingency issuance.
* **Optimization and High Volume:** Deeply engage with the database (SQL Server). You’ll analyze execution plans, refactor heavy queries, and ensure billing tables with millions of rows respond within milliseconds.
* **Fiscal Strategy and Tax Reform:** Implement the complex tax engine (CST/CSOSN, CFOP, NCM, ICMS sharing) and serve as a key contributor in restructuring the platform to address the impacts of the **Tax Reform** on goods circulation (IBS/CBS).
* **Asynchronous Processing:** Handle messaging and batch processing to ensure government server bottlenecks or outages do not halt our customers’ billing.
**Requirements and Qualifications**
**Non-Negotiable Requirements (What You Must Have)**
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* **PHP Seniority:** Minimum of **5 years of proven, exclusive professional experience with PHP**, focused on highly available systems and clean code.
* **Fiscal Expertise (NF\-e/SEFAZ):** Absolute mastery of product fiscal document structures (NF\-e, NFC\-e, MDF\-e), XML signing (A1/A3 certificates), and SOAP/REST messaging with SEFAZ.
* **SQL Server Mastery:** Advanced database optimization knowledge. Ability to resolve *locks*, *deadlocks*, and create efficient indexes to support large-scale billing operations.
* **Business Acumen:** Clear understanding of product taxation rules (ICMS, IPI, PIS, COFINS) and strategic insight into how the Tax Reform will reshape software business rules.
* **Cloud Architecture:** Practical knowledge and hands-on experience with cloud architectures aimed at scalability during traffic spikes (e.g., Black Friday).
* **AI-Assisted Development:** Practical experience using AI tools (Gemini CLI, Claude, GitHub Copilot) to accelerate development and support *code reviews*.
* **Best Practices:** Proficiency with Git/GitHub, version control, and CI/CD pipelines.
**What Will Set You Apart (Nice-to-Haves)**
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* Solid experience developing ERPs, POS systems (Point of Sale), or commercial automation solutions.
* Prior exposure to resilience-focused architectures (circuit breakers, message queues) for handling governmental service instability.
* Knowledge of monitoring, structured logging, and observability practices.
**Additional Information**
Flexible Benefit/Meal Allowance: BRL 45.00 per business day.
Remote Work Allowance.
Required to work onsite? We offer transportation vouchers. For those arriving by train/metro, we provide a shuttle from the station to the office.
Bradesco Health Insurance Plan.
Amil Dental Insurance Plan.
Pharmacy Allowance.
Childcare Allowance.
Birthday Day Off—celebrate however you like!
To support physical health and wellness, we partner with certified gym apps.
For relaxation and mental well-being, we partner with online therapy and meditation platforms.
SESC Partnership — Full Membership Credential.
Exclusive discounts at top universities and educational institutions for undergraduate, graduate, and MBA programs. Plus, free access to Omie Academy for employees.
English-in-Company course partnership.
Discount program for insurance products.
Swile Shop: platform offering exclusive discounts.
Dell partnership.
PPRL.
Travel Benefits.
Life Insurance.
We are a software company that brings prosperity to the Brazilian entrepreneurial ecosystem—unlocking business growth through a platform that solves any management complexity simply, intuitively, and efficiently.
Omie seeks professionals capable of further amplifying results within an organizational culture rooted in trust, transparency, and loyalty among teams, partners, and customers. We look for people with a growth mindset—valuing adaptability, collaboration, and motivation fueled by innovation and lifelong learning.
**We Are All \#OmieLovers!**
We believe **EVERYONE** should feel welcomed, safe, and fulfilled while being their best selves. That’s why all our opportunities are open to everyone, actively valuing and promoting inclusion and diversity.