Senior Software Developer

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.