Back-end Developer, .NET Senior

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Hyperativa

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 1999

💼 Consulting

📣 Marketing

📦 Logistics

Consulting • Marketing • Logistics

Hyperativa is a technology company specialized in loyalty marketing solutions that serves B2B2C clients such as financial institutions, retailers and manufacturers. For over 20 years it has provided a customizable, secure SaaS platform to design and operate promotions, cashback campaigns, loyalty programs, CRM analytics and database management, with integrations (APIs, WhatsApp), anti-fraud controls and compliance with PCI DSS and LGPD. Its offerings include coupon/QR and receipt reading, prize distribution, games, chatbots, reporting and real-time campaign management.

📋 Description

• Develop, evolve, and maintain back-end APIs and services using .NET Core 8+ • Perform targeted maintenance on legacy components in .NET Framework 4.8 and ASP.NET • Implement business rules following DDD principles and architectural best practices • Build integrations between internal and external systems, ensuring performance, security, and reliability • Work with SQL Server, using stored procedures and best practices for data access (Dapper) • Support the team in investigating and resolving incidents while maintaining expected quality levels • Follow security standards applied to the credit card industry (PCI) • Develop high-availability APIs and services for digital promotions, giveaways, incentive campaigns, and cashback • Serve multiple clients in the financial sector

🎯 Requirements

• Experience with C# and modern versions of .NET Core • Experience developing REST APIs and with domain-driven design principles • Experience with Dapper and SQL Server (stored procedures) • Version control with Git (Azure DevOps) • Security knowledge: JWT, OAuth2, secure coding practices, and OWASP fundamentals • Experience with messaging: RabbitMQ and Cloud Tasks (GCP) • Experience with caching: Redis • Knowledge of Docker and Kubernetes • Familiarity with cloud environments (GCP/AWS) • Concepts related to mTLS and MLE (Message Level Encryption) • Performance optimization for SQL queries • Advanced English • Nice to have: intermediate front-end programming (SPA)

🏖️ Benefits

• Pleasant work environment, continuous learning, and daily challenges • Active participation in decision-making • Transparency in company direction • Indefinite remote work (Home Office) • Group life insurance • Half-day off on your birthday • Company-provided equipment required to work • Flexibility to work and attend daily team meetings