Senior C#/.NET Full-Stack DBA Developer

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

Resumo da oferta

A technology consulting firm is looking for a Senior C#/.NET Developer in São Paulo, Brazil. The ideal candidate has over 7 years of experience and deep expertise in SQL Server and Azure SQL with a focus on database performance and reliability. You will design and develop scalable applications while optimizing database schemas and tuning performance. This position offers a competitive salary and a hybrid working model, fostering a collaborative culture that prioritizes quality and continuous improvement.

Serviços

Competitive salary

Influence architectural decisions

Collaborative engineering culture

Qualificações

• 7+ years of professional experience in C# / .NET software development.
• Strong written and spoken English (C1 or C2 proficiency).
• Experience owning database operations, including backup, start, high availability, and disaster recovery.

Responsabilidades

• Design and optimize database schemas and queries for high-performance workloads.
• Develop and maintain enterprise-grade applications and services using C# and .NET.
• Own database performance tuning and capacity planning across environments.

Conhecimentos

SQL Server / Azure SQL expertise

C# and .NET proficiency

RESTful API development

Performance tuning

Agile / Scrum methodologies

Communication skills

Formação académica

Bachelor’s degree in Computer Science or related field

Ferramentas

Azure DevOps

Git

Descrição da oferta de emprego

Position Overview

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

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