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Juliano S.
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Juliano S.

Senior Backend Engineer | C#/.NET | DevOps | Full Time

✅ 13+ Years of Software Engineering Excellence – Senior Dev & Tech Architect Hi, I’m Juliano Sales – a results-driven Senior Software Engineer and Tech Lead with over 13 years of experience delivering high-performance, scalable, and future-proof solutions across startups, SaaS products, and enterprise systems. 🚀 What I Bring to the Table ✅ Full-Cycle Expertise: From architecture to deployment, I’ve led backend-heavy systems and multi-tenant applications that scale reliably under real-world pressure. ✅ Clean, Maintainable Code: Every line of code I write is designed to be testable, extendable, and optimized for performance. ✅ Strategic Vision: I don’t just build features—I help shape your product roadmap with a long-term architectural mindset. ✅ Problem Solver & Communicator: I’m the developer who asks the right questions, sees the risks early, and keeps projects moving forward with clarity. 🧠 Technical Highlights Languages & Frameworks: C#, ASP.NET, ASP.NET Core, .NET Framework, .NET Core, Web API, Windows Services Cloud & DevOps: AWS (EC2, RDS, S3, ALB, VPC), Azure, Docker, Kubernetes, Terraform, GitHub Actions Databases: SQL Server, PostgreSQL, Babelfish, Entity Framework (Database First & Code First) Specialties: Distributed Systems, Multi-Tenancy APIs, Legacy Modernization, SaaS Infrastructure, High-Availability Systems 🏆 Key Projects 🌟 Allivet – Led the end-to-end development of a distributed, multi-tenant architecture, enabling scalable onboarding of new clients with minimal overhead. Improved system performance and maintainability through modular design, advanced logging, and automated deployments. 🌟 Chief Logic – Acted as a strategic Senior Engineer, collaborating directly with CTOs and product teams to evolve core SaaS infrastructure. Delivered improvements to API performance, data integrity, and release cycles while shaping technical roadmaps and mentoring junior developers. 🌟 Bud Light & AB InBev – As a Senior Backend Engineer, I helped architect and implement a high-scale multi-tenancy system built on microservices, with seamless integration of Kafka, Redis, Docker, and CI/CD pipelines. 💬 What Clients Say About Me "Juliano doesn’t just code—he brings strategic clarity and calm execution to complex problems." "One of the few developers I’ve worked with who deeply understands both business goals and clean architecture." 🟢 Why Hire Me? ✅ Senior-level autonomy: I move fast without hand-holding ✅ Proactive mindset: I bring suggestions, not just solutions ✅ Communication-first: I keep stakeholders informed, not guessing ✅ Focus on ROI: I build systems that grow with your business Let’s talk about how I can help you elevate your project to the next level. Best regards, Juliano Sales

🇧🇷Barueri, Brazil$52/hr100% JSS5.00 (3)Since Apr 2014

Earnings and projects

MRR
$7.7k

Last 6 months ÷ 6

World#2,334 / 412k
🇧🇷Country#43 / 4,647
Revenue, last 30 days
$7.6k

Last 6 months: $46k

World#2,563 / 412k
🇧🇷Country#51 / 4,647
Total earnings
$335k

Billed in all: $350k

World#6,294 / 412k
🇧🇷Country#78 / 4,647
Per project
$84k

$46k in the last 6 months

World#302 / 412k
🇧🇷Country#7 / 4,647
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇧🇷Country#1,427 / 4,647
Projects in all
4

Across 8 contracts

0% fixed100% hourly
World#283,741 / 412k
🇧🇷Country#2,759 / 4,647

Earnings, last 30 days

$350k+$7.6k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$340k$345k$350k$355kOct 8Oct 23Nov 7

Skill rankings: #1 in 2 skills of 15

Rarest: top 0.46% in Architecture Consultation, of 218. Ranked by MRR among everyone on Upwork with the skill.

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  8. #48.NET Core3,067 freelancers · 🇧🇷 #1Top 2%