Based in Boston, Massachusetts. Our team of professionals are dedicated to providing exceptional service and support to our clients. We have the expertise and experience to solve even the most complex technology challenges. 

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Our Headquarters

Boston, MA, USA

Senior Cloud Backend Engineer – C#, .NET, AWS, and SQL

Full-time
Remote (Mexico/Argentina) You must reside in Mexico or Argentina
Direct Hire

About us

SkilldLabs is a product built from the challenges of our past. Hiring quality talent, working together in the same time-zone, and building cutting edge products at warp speed. We help startups overcome today’s hiring challenges. Today, we have grown into a leading staff augmentation provider of highly skilled teams of nearshore experts.

About our Client

We’re partnering with a fast-growing SaaS company that is redefining how organizations optimize revenue and sales performance. Their cloud-based platform empowers revenue and sales leaders to design smarter go-to-market strategies, improve seller performance, and scale efficiently across global teams. The company is recognized as a market leader within its category and is trusted by enterprise organizations across multiple industries. You’ll join a highly collaborative, product-focused engineering organization building scalable, mission-critical systems.

About the Team

The engineering team is deeply committed to innovation, system reliability, and technical excellence. Engineers work closely with product, design, data, and QA teams to deliver high-impact features while continuously improving performance, scalability, and data integrity across a modern cloud-native architecture.

The Role

As a Cloud Backend Engineer, you will play a senior technical leadership role within a multidisciplinary team. You’ll help design, build, and scale backend systems that power a modern SaaS platform handling large, complex datasets. This role has a strong emphasis on C#, AWS, and SQL. These are absolute must-have skills and are critical to success in this position.

What You’ll Do

  • Design, develop, and scale backend services and REST APIs using C#.
  • Architect and maintain AWS-based cloud infrastructure using Infrastructure-as-Code.
  • Write and optimize high-performance SQL queries for large, data-intensive systems.
  • Partner with product management, design, and QA to deliver new features and enhancements.
  • Lead code reviews, uphold engineering best practices, and mentor other engineers.
  • Optimize system performance, scalability, and reliability across large datasets.
  • Build and integrate services using AWS services such as Lambda, S3, DynamoDB, and Redshift.
  • Design and improve CI/CD pipelines and automated deployment processes.
  • Identify and resolve system bottlenecks to ensure high availability and uptime.

What You Bring

Core Technical Requirements (Must-Have)

  • 7+ years of backend software engineering experience.
  • Strong, hands-on experience with C# in production environments.
  • Deep experience building and operating systems on AWS.
  • Advanced SQL skills, including query optimization and working with large datasets.

Additional Technical Experience

  • Experience with RESTful API design and distributed systems.
  • Experience working with relational and analytical databases.
  • Understanding of ELT/ETL pipelines and data processing workflows.
  • Strong foundation in software design principles and architecture.
  • Passion for writing clean, maintainable, and scalable code.
  • Comfortable operating as a senior technical contributor and technical leader.

Benefits

  • Market-leading compensation package.
  • Local Payroll Employment
  • Wellness and wellbeing programs.
  • Opportunity to work with modern tools and technologies.
  • Full remote work flexibility.
  • Comprehensive employee insurance coverage (medical, dental, vision, life).
  • Annual time off in accordance with local legislation.
  • Global, distributed team with strong collaboration practices.
  • Continuous learning and professional development opportunities.
Job Category: Software Development
Job Type: Full Time
Job Location: argentina mexico

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