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Job Opportunity only available for professionals located in Latin America. We're seeking a Senior Software Developer to join our HR Technology & Shared Services development team, a specialized engineering group responsible for building secure, scalable, and business-critical platforms that support enterprise functions across the firm. This is a full-stack engineering role within a high-performance quantitative trading firm, where precision, security, and craftsmanship matter. The team designs and builds internal platforms that integrate with best-in-class third-party systems (UKG, ADP, payroll, compliance, and others) while also developing custom solutions that cannot be purchased off the shelf. The group operates a dedicated on-premises hardware environment to support systems responsible for highly sensitive firm data. As a Senior Developer, you will work end-to-end — from architecture and application design to deployment and operational support — in collaboration with experienced engineers and cross-functional stakeholders. Qualifications: Advanced English level (B2/C1/C2) to ensure fluent communication across teams is a Must. 10+ years of hands-on software development experience. Strong proficiency in C# or Java. Experience with SQL, Web Development, and API-driven architectures. Experience working with AI-assisted tooling (Copilot, Cursor, Claude Code, etc.). Interest in understanding systems beyond code — including deployment, data flow, and reliability. Strong collaboration and communication skills across technical and non-technical teams. Any experience deploying solutions using AI for inference is a plus. Bachelor's degree in Computer Science, Engineering, Mathematics or a related discipline. Relevant experience can be substituted for education. Responsibilities: Build solutions leveraging LLMs running on our on-prem GPU infrastructure Design and build secure, scalable applications supporting critical business functions Architect and maintain integrations across enterprise systems (HR, payroll, compliance, compensation) Build internal tools and platforms where commercial solutions do not meet business needs Work across the full SDLC: architecture development deployment monitoring Contribute to a dedicated on-premises infrastructure environment Collaborate with engineers, analysts, and system owners to translate complex requirements into production-ready systems End-to-End Ownership Engineers contribute across application, integration, and infrastructure layers. Security-Focused Engineering Systems support highly sensitive data (e.g., compensation, performance, firm-wide workflows) and are designed with strict isolation and reliability standards. Complex Systems Environment Multiple integrations, diverse data flows, and enterprise-scale workflows require thoughtful system design and strong engineering fundamentals. What do we offer? Competitive salary in USD. 100% Remote work. Type of contract: Independent Contractor with Venon Solutions LLC. Contract duration: Long-term. Benefits: 2 weeks of PTO (paid time off). Paid Holidays from the North American calendar. Working hours: Full-time EST, fully committed. Originally posted on Himalayas