Senior .NET Backend Engineer
Workana· Workana Premium
About this role
SalesBlue is a voice AI sales automation platform for insurance brokerages in Mexico and Spain. We build outbound calling systems, campaign orchestrators, and agentic workflows integrating telephony, LLMs, carrier portals, and CRMs. Complex backend, real clients, fast pace environment.
We need a senior .NET/C# engineer who has operated real production systems under load — not just built them. Someone who thinks in architecture first, can design for resilience and scale, and knows what it means to keep a highly integrated backend alive across many moving parts.
Responsibilities
- Core backend services: campaign orchestrators, FSM-based workflow engines, API integrations with telephony (Twilio), voice AI platforms, insurance carriers, and CRMs.
- System design and architecture decisions alongside the CTO.
- Multi-server deployments, async processing pipelines, event-driven flows.
- Frontend integration via Next.js (familiarity needed, not the focus).
- Deep .NET / C# expertise.
- Strong CS fundamentals: OOP, SOLID, SOA, design patterns.
- Experience designing and operating event-driven backend architectures.
- Experience running systems on multi-server infrastructure with real traffic — you know what horizontal scaling, fail over, and stateless design actually mean in practice.
- Proficiency with parallel and concurrent programming — async/await, thread safety, queues, etc..
- Experience integrating many external services/APIs in a single backend — you've dealt with the chaos and know how to tame it.
- Ability to design backend architecture from scratch for complex web applications.
- Fluent in AI dev tools: Claude Code, Cursor, GitHub Copilot — part of your daily workflow, not occasional use.
- Communicates clearly in English; Spanish is a plus.
Nice to have
- Voice AI / telephony integrations (Twilio, Retell, ElevenLabs, Deepgram).
- AWS, Vercel, or Railway deployments.
- Startup experience — comfortable with shifting requirements.
- Compensation in USD.
- Fully remote work
- High-growth opportunities in an international company.
Frequently Asked Questions
Is the salary disclosed for the Senior .NET Backend Engineer position at Workana?
The salary for this Senior .NET Backend Engineer role at Workana is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Is the Senior .NET Backend Engineer job at Workana remote?
Yes, this Senior .NET Backend Engineer position at Workana is remote, with team members based in Panama City, Panama, Panama, TELECOMMUTE. You can work from home or anywhere in the supported regions.
Is the Senior .NET Backend Engineer role at Workana full-time or part-time?
This is listed as a Contract position. It is posted as a Senior .NET Backend Engineer role in the Workana Premium department at Workana.
Which team or department does the Senior .NET Backend Engineer at Workana belong to?
This Senior .NET Backend Engineer position is part of the Workana Premium department at Workana. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior .NET Backend Engineer position at Workana?
Click the "Apply Now" button on this page. You will be redirected to Workana's official application portal hosted on workable where you can submit your application directly.
When was the Senior .NET Backend Engineer job at Workana posted?
This Senior .NET Backend Engineer position at Workana was posted on Jun 29, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior .NET Backend Engineer
Workana
You'll be redirected to Workana's official application page on workable.