Senior DBA + C#/.NET Developer

Tech Tactix Advisory Group (Salto SP, Brazil) Follow 2 days ago

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 Database Administrator with C#/.NET development experience to join our growing engineering team. This role is intentionally hybrid: you will interact with/improve code related to our software database queries, 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
Prior team lead experience

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

Apply Now

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