Quick Summary
Junior Software Engineer (Fintech Infrastructure)
Celcoin, founded in 2016, is a pioneering infratech company in Brazil specializing in financial technology infrastructure across payments, banking, and credit verticals. Our mission is to empower businesses and transform access to financial services, connecting over 600 financial sector clients and 6,000 non-financial companies to millions of daily transactions.
We are seeking a talented Junior Software Engineer to join our team, utilizing technology to deliver financial services to the population.
Key Responsibilities
- Construct large-scale and distributed systems architecture.
- Develop and maintain robust Web APIs.
- Create event-oriented microservices.
- Analyze systems and propose effective solutions for complex, real-world problems.
- Ensure high quality in all produced codebases.
- Optimize implemented systems and routines for maximum speed.
Required Qualifications
- Completed higher education (Bachelor's Degree) in Computer Science, Engineering, or Information Systems.
- Proficiency in one or more of the following languages: C#, PHP, Python, and/or Go.
- Experience with databases, specifically SQL Server (MongoDB knowledge is desirable).
- Familiarity with clean architecture or Domain-Driven Design (DDD).
- Experience consuming and creating APIs using REST (JSON).
- Basic knowledge of Excel and PowerPoint.
- Demonstrated capacity for decision-making and creative problem-solving.
Benefits and Additional Information
This is a CLT employment contract position (Full-time, Monday to Friday, 9am to 6pm). The role is Full Home Office, with an optional open office space available in Barueri.
- Flexible Meal/Food Voucher (VR/VA) paid via Ifood Benefits card.
- Transportation Voucher.
- Bradesco Medical and Dental Assistance (no co-payment for employees; dependents may have co-payment).
- Life Insurance.
- Totalpass and Zenklub access.
- Annual Variable Remuneration tied to company goals.
- Daycare assistance for children up to 5 years old.
- Birthday day off.
- Partnerships with language schools and universities.
- Pharmacy agreement.
- Petlove (Health plans for pets).
- SESC Partnership.
- Extended parental leave (180 days maternity, 20 days paternity).

