Senior/Lead Software Engineer (.NET) ID41563

AgileEngine; Londrina; Remote; BRL 431,034 - 538,793; Full time

Benefits offered by this job

Professional growth opportunities

Competitive USD-based compensation

Flexible working schedule

Exciting project portfolio

Job summary

A leading software development company in Brazil is seeking a Senior/Lead Software Engineer (.NET) to design and implement secure APIs using .NET Core. The ideal candidate will have 5+ years of backend experience, strong Azure services knowledge, and a commitment to security best practices. Join a culture that values professional growth and flexible working conditions.

Qualifications

• 5+ years of experience with .NET Core backend engineering focused on API development.
• Strong understanding of relational databases and T-SQL fundamentals.
• Experience building scalable systems with distributed components.

Responsibilities

• Design, implement, and maintain secure RESTful APIs using .NET Core / .NET 6+.
• Collaborate with cross-functional teams to deliver new features.
• Uphold security best practices during development.

Skills

.NET Core backend engineering focused on API development

Microsoft Azure services

T-SQL fundamentals

Dapper or equivalent micro-ORMs

high throughput systems

observability (logs/metrics/traces)

AI-assistant development

clear communication

Tools

Azure SQL

Blob Storage

Cosmos DB

Redis

Docker

Kubernetes

Job description

Senior/Lead Software Engineer (.NET) ID41563

Join to apply for the Senior/Lead Software Engineer (.NET) ID41563 role at AgileEngine

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.

WHY JOIN US

If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!

ABOUT THE ROLE

As a Networking Engineer with Security in Cloud Engineering, you will help build secure, scalable, and resilient AWS networking environments that support business growth. This role offers the chance to influence architecture, strengthen cloud security, and enhance infrastructure reliability while collaborating across teams and expanding your expertise in advanced networking, infrastructure-as-code, and security best practices.

WHAT YOU WILL DO

• Design, implement, and maintain high-performance, scalable and secure RESTful APIs and services using .NET Core / .NET 6+ hosted in Azure;
• Collaborate with front-end engineers to define, design, and deliver new features;
• Work closely with QA engineers to ensure software is thoroughly tested before production release;
• Integrate third-party services and APIs as required;
• Participate in code reviews, architecture discussions, and continuous improvement initiatives;
• Model and enforce data access patterns;
• Write efficient T‑SQL and leverage Dapper for data access (no heavy ORMs/EF);
• Apply caching (Azure Cache for Redis), partitioning/sharding, and idempotent/event-driven processing (Azure Service Bus/Event Hubs);
• Profile and optimize hot paths (dotnet-counters/trace, PerfView, BenchmarkDotNet);
• Deliver observable services (OpenTelemetry traces/metrics/logs, Azure Application Insights) with actionable SLO/SLA signals;
• Collaborate on architecture, trade-offs, and failure modes;
• Participate in code reviews and mentor peers (incl. AI-assisted workflows);
• Uphold security best practices (OWASP API, Azure Key Vault, least privilege, rate limiting).

MUST HAVES

• 5+ years of experience with .NET Core backend engineering focused on API development;
• Hands‑on experience with Microsoft Azure services (Azure SQL, Blob Storage, Cosmos DB, Redis, etc.);
• Strong understanding of relational databases and T‑SQL fundamentals;
• Experience with Dapper or equivalent micro‑ORMs;
• Proven experience building/operating systems with high throughput, distributed components, and internet‑scale considerations;
• Proficiency with AI‑assistant development (e.g., Copilot/ChatGPT);
• Practical observability (logs/metrics/traces) and performance optimization;
• Clear and concise communication;
• Comfortable in highly transparent cultures;
• Upper-Intermediate English level.

NICE TO HAVES

• Familiarity with Azure SQL Hyperscale, Cosmos DB modeling, and Redis patterns;
• Understanding of event‑driven design and idempotent processing;
• Exposure to observability stacks (metrics/tracing/logging);
• Basic container literacy (Docker/Kubernetes familiarity), though infra is handled by a dedicated team;
• Experience mentoring engineers or coordinating contributions across a small pod;
• Experience in gaming development and or startup companies.

PERKS AND BENEFITS

• Professional growth: Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps.
• Competitive compensation: We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities.
• A selection of exciting projects: Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands.
• Flextime: Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive.

Seniority level

Mid-Senior level

Employment type

Full-time

Industries

IT Services and IT Consulting