Senior .NET Backend Engineer

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🕒 June 29

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Workana

51 - 200 employees

Founded 2012

👥 HR Tech

🏪 Marketplace

🎯 Recruiter

💰 Series C on 2024-02

HR Tech • Marketplace • Recruitment

Workana is a leading platform in Latin America that connects businesses with remote talent across various disciplines. With over a decade in the market, Workana specializes in providing businesses with pre-selected and certified developers and freelancers for specific time periods or project-based tasks. The platform supports hiring in diverse fields such as IT & Programming, Design & Multimedia, Writing & Translation, and more, offering payment flexibility in local currencies or USD. Workana ensures satisfaction with protected payments and a satisfaction guarantee, aiming to grow businesses quickly and sustainably by leveraging the best remote talent available.

📋 Description

• 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).

🎯 Requirements

• 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.

🏖️ Benefits

• Compensation in USD. • Fully remote work • High-growth opportunities in an international company.

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