Senior C#/.NET Full-Stack DBA Developer

Tech Tactix Advisory Group; Alvorada; Híbrido; BRL 120.000 - 160.000; Tempo integral

Resumo da oferta

A technology advisory firm in Brazil seeks a Senior C# / .NET Developer who possesses strong SQL Server expertise and advanced C# skills. This hybrid role involves designing software while owning database performance, reliability, and cost management in Azure SQL environments. Candidates should have a Bachelor's degree, over 7 years of experience, and strong English communication skills. The firm offers competitive salary, responsibility for critical systems, and a collaborative culture focused on quality and improvement.

Serviços

Competitive salary

Opportunity to influence architectural decisions

Collaborative engineering culture

Qualificações

• 7+ years of professional experience in C# / .NET development.
• Strong written and spoken English (C1 or C2 proficiency).
• Experience owning database operations.

Responsabilidades

• Design and optimize database structures and queries for high performance.
• Develop and maintain enterprise-grade applications using C# and .NET.
• Support CI/CD pipelines using Azure DevOps.

Conhecimentos

Fluent English

SQL Server expertise

C# and .NET proficiency

RESTful APIs

Analytical skills

Collaboration

Formação académica

Bachelor's degree in Computer Science

Ferramentas

Microsoft Azure

Git

Azure DevOps

Descrição da oferta de emprego

This position requires fluent English - do not apply with a non-English profile / resume as it will be automatically filtered. Position Overview

We are seeking a Senior C# / .NET Developer with deep database ownership experience to join our growing engineering team. This role is intentionally hybrid : you will design and build software while also owning the reliability, performance, scalability, and cost management of our SQL databases.

This position is ideal for a senior engineer who is database-centric but not database-only—someone who enjoys writing production code, building features that interact heavily with data, and taking responsibility for how the database performs in real-world, high-availability environments.

You will work across application code, database architecture, and Azure infrastructure, partnering closely with product and engineering leadership to deliver scalable, reliable systems.

Key Responsibilities

• Database Architecture, Performance & Ownership
  • Design, evolve, and optimize database schemas, indexes, queries, and stored procedures to support high-performance application workloads
  • Own database performance tuning, query optimization, and capacity planning across environments
  • Manage availability, backup / restore, disaster recovery, and survivability strategies in Azure SQL
  • Monitor and proactively address performance bottlenecks, deadlocks, blocking, and resource contention
  • Own database cost management in Azure, including sizing, scaling strategies, and cost optimization
  • Ensure data integrity, security, and operational excellence throughout the application lifecycle
• Software Development & Feature Delivery
  • Design, develop, and maintain enterprise-grade applications and services using C# and .NET
  • Build application features that interact deeply with the database, balancing correctness, performance, and maintainability
  • Develop and maintain RESTful APIs and backend services that integrate with internal and third-party systems
  • Participate in architectural discussions and influence technical direction across the stack
  • Perform code reviews and mentor team members on best practices in both application and database development
  • Troubleshoot and resolve complex issues across application, database, and infrastructure layers
• Azure Cloud & DevOps
  • Design and operate solutions using Microsoft Azure, with a focus on reliability and observability
  • Support CI / CD pipelines and deployment practices using Azure DevOps
  • Work with monitoring, logging, and alerting to ensure system health and rapid issue resolution
  • Collaborate on infrastructure decisions that impact scalability, performance, and cost

Required Qualifications

• Experience & Education
  • Bachelor's degree in Computer Science, Software Engineering, or equivalent experience
  • 7+ years of professional experience in C# / .NET software development
  • Strong written and spoken English (C1 or C2 proficiency)
• Technical Skills (Priority Order)
  • Strong SQL Server / Azure SQL expertise, including
    • Advanced T-SQL
    • Stored procedures and query optimization
    • Indexing strategies and execution plan analysis
    • Performance tuning and troubleshooting
  • Proven experience owning database operations, including
    • Backup, restore, high availability, and disaster recovery
    • Performance monitoring and scaling
    • Cost and capacity management in Azure
  • Expert-level proficiency in C#, .NET Core, and .NET Framework
• Experience building and maintaining RESTful APIs
  • Experience with Microsoft Azure services, including App Services, Functions, and Storage
  • Front-end experience with Angular (7–17)
  • Familiarity with Agile / Scrum development methodologies
  • Proficiency with Git and Azure DevOps
• Soft Skills
  • Excellent communication skills, with the ability to explain complex technical topics
  • Strong analytical and problem-solving abilities
  • Ability to work independently and take ownership of critical systems
  • High attention to detail and commitment to quality and reliability
  • Collaborative mindset with experience working in cross-functional, distributed teams
• Bonus Points
  • Microsoft Azure certifications (Developer Associate, Solutions Architect, or similar)
  • Experience with Plivo or Twilio
  • Experience with message-based systems (Azure Service Bus, RabbitMQ, etc.)
  • Strong understanding of DevOps practices and production operations
  • Experience working in HIPAA-regulated environments

What We Offer

• Competitive salary commensurate with experience
• Opportunity to own critical systems and influence architectural decisions
• A collaborative engineering culture that values quality, accountability, and continuous improvement