Job Description
Senior Staff Software Engineer – .NET |C# |AWS
Full Time, On Site in Dallas
No Agencies, No Sponsorship, No 3rd Parties
Position Overview / Ideal Candidate
Élan Partners is seeking a Senior Staff Software Engineer with deep .NET/C# expertise to design and help drive the backend architecture of a large-scale, consumer-facing commerce platform processing billions of dollars in annual transactions. This is a highly technical, hands-on engineering role for someone operating between the Senior and Principal level, with near-architect-level system design capabilities. The ideal candidate has experience building high-volume, customer-facing transactional systems from the ground up and understands what it takes to design systems for scale, reliability, performance, and security. The environment is cloud-native and AWS-based, with a core backend stack of .NET and C#. Experience with e-commerce, payments, PCI-regulated platforms, ordering, fulfillment, or other high-throughput transactional environments is strongly preferred.
Required Qualifications
Responsibilities
Full Time, On Site in Dallas
No Agencies, No Sponsorship, No 3rd Parties
Position Overview / Ideal Candidate
Élan Partners is seeking a Senior Staff Software Engineer with deep .NET/C# expertise to design and help drive the backend architecture of a large-scale, consumer-facing commerce platform processing billions of dollars in annual transactions. This is a highly technical, hands-on engineering role for someone operating between the Senior and Principal level, with near-architect-level system design capabilities. The ideal candidate has experience building high-volume, customer-facing transactional systems from the ground up and understands what it takes to design systems for scale, reliability, performance, and security. The environment is cloud-native and AWS-based, with a core backend stack of .NET and C#. Experience with e-commerce, payments, PCI-regulated platforms, ordering, fulfillment, or other high-throughput transactional environments is strongly preferred.
Required Qualifications
- Advanced hands-on development experience with .NET and C#
- Strong system design and distributed systems architecture experience
- Experience designing and scaling microservices-based, cloud-native applications
- Deep experience with AWS, including services such as ECS/EKS, RDS, SQS, and related cloud infrastructure
- Experience building or playing a significant role in building a high-volume, customer-facing transactional platform from the ground up
- Experience designing systems where scalability, availability, latency, data integrity, and fault tolerance are critical
- Experience supporting highly available, production-critical applications
- Strong understanding of observability, monitoring, incident response, and long-term system resilience
- Ability to identify and resolve performance bottlenecks, scaling challenges, and architectural risks
- Strong technical leadership skills with the ability to establish engineering standards and mentor other engineers
- Excellent communication skills
- Experience within e-commerce, payments, PCI-DSS, ordering, fulfillment, or other high-volume transactional environments
- Experience building multiple large-scale transactional platforms or participating in multiple significant ground-up implementations
- Experience designing systems for PCI-DSS compliance, secure data handling, and fraud-prevention considerations
- Experience establishing backend architecture patterns and engineering best practices across development teams
- Thoughtful, practical use of AI-assisted engineering tools, such as Claude or similar development-focused tools, while maintaining strong engineering fundamentals and technical judgment
Responsibilities
- Design and own distributed backend systems using .NET/C# within a cloud-native AWS environment
- Build and scale microservices supporting high-throughput transactional workloads
- Lead system design and architectural decisions impacting performance, scalability, reliability, and security
- Ensure mission-critical services meet demanding requirements for availability, latency, fault tolerance, and data integrity
- Design and maintain secure systems supporting PCI-DSS and transactional processing requirements
- Drive improvements in system observability, monitoring, incident response, and production health
- Identify and resolve system bottlenecks, architectural risks, and scaling challenges
- Define backend engineering standards, architectural patterns, and development best practices
- Partner with product and business stakeholders to translate complex requirements into scalable technical solutions
- Mentor engineers and help elevate technical capability across the engineering organization
Numbers & Facts
| Location | Dallas, TX |
| Industry | Staffing/Employment Agencies |
| Company Size | 50 to 99 employees |
| Website | http://www.elanpartners.com |
About Company
Élan Partners, a woman-owned, WBENC certified, professional staff augmentation firm specializing in Technology and Engineering, is headquartered in Dallas, Texas. Our expertise is derived from more than twenty years of delivering customized staffing solutions to a host of technical clients, including Medical, Healthcare, Financial, Manufacturing and Software/Hardware Development industries.
Our team has an average of 15 years recruiting for technical disciplines as well as an average of 10 years working together in that capacity. A result of this tenure is an extensive referral network from with which we are able to find the most difficult skill sets. The pride we take in our work is apparent in the results we produce that are achieved through teamwork, a commitment to quality and unwavering belief in integrity.
Employers – Industry leaders who desire to obtain the best possible talent are realizing the importance of partnering with a reputable staffing firm invested in ethical business practices. Élan Partners is that firm. Our methodology is proven and efficient. We will not inundate you with unqualified resumes. Our only request is an open line of communication so that we can effectively provide you with the most qualified candidates. Our philosophy is to ensure every company we work with becomes a client for life.
Job Seekers –Picking the correct firm to represent you is an important decision. Relationships are important, as mentioned above. We strive to ensure every company we work with becomes a client for life. The same holds true for our candidates and consultants – (In fact, 50% of our client base is derived from candidates we have worked with in the past who are now in hiring positions). Élan will never present your resume without your consent and will only present career opportunities that are right for you. You can trust our recruiter is someone who understands respects and appreciates your search. We will always represent you accurately, fairly, with great confidence and discretion.
Élan continues to meet the evolving challenges of workforce flexibility with staffing solutions tailored to your precise business needs. We offer a number of flexible services to meet a variety of different needs:
• Contract Staffing
• Contract to Direct
• Permanent/Direct Hire Placement
• Single Source Staffing
• Payroll Services
Skills
- Amazon Web Services (AWS)unmatched
- Architectural Servicesunmatched
- Artificial Intelligence (AI)unmatched
- Best Practicesunmatched
- Cloud Applicationsunmatched
- Cloud Computingunmatched
- Communication Skillsunmatched
- Customer Relationsunmatched
- Data Qualityunmatched
- Distributed Computingunmatched
- High Availabilityunmatched
- High Throughputunmatched
- Incident Responseunmatched
- Information/Data Security (InfoSec)unmatched
- Leadershipunmatched
- Local Area Network (LAN)unmatched
- Mentoringunmatched
- Microservicesunmatched
- Microsoft .NETunmatched
- Microsoft C# (C Sharp)unmatched
- Order/Customer Fulfillmentunmatched
- PCIunmatched
- PCI-DSSunmatched
- Process Improvementunmatched
- Simple Queue Service (SQS)unmatched
- Software Engineeringunmatched
- Standards Developmentunmatched
- System Architectureunmatched
- Systems Administration/Managementunmatched
- Systems Maintenanceunmatched
- Systems Scalabilityunmatched
- Technical Leadershipunmatched
- Transaction Processing/Managementunmatched
- eCommerceunmatched
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