Application Lead (.Net)

Rate Range: $85-$100/Hr Job Description:We are seeking a highly experienced Application Lead to work on the design, architecture, and delivery of enterprise-grade solutions.This role requires strong ownership of end-to-end system architecture, strategic technical decision-making, and leadership of cross-functional engineering teams.Responsibilities: Architecture & Solution DesignDefine and own end-to-end system architecture (APIs, frontend, and data layer)Create architecture diagrams, technical blueprints, and design documentationDesign scalable, secure, and high-performance GenAI systems using a spec-driven approachEstablish best practices for modular, reusable, and production-ready system designAI / GenAI EngineeringArchitect and implement solutions using Claude API, LLMs, and agentic AI frameworksDesign multi-agent systems, MCP integrations, and tool-based workflowsBuild and optimize RAG pipelines with vector databases and retrieval strategiesDefine prompt engineering standards, structured outputs, and evaluation frameworksLeadership & DeliveryLead and mentor a team of engineers and developersDrive technical planning, task allocation, and delivery timelineConduct code reviews and enforce engineering best practicesCollaborate with product, design, and engineering stakeholdersEngineering & PlatformOversee backend development using .NETEnsure robust deployment practices using Docker, CI/CD, and AWSDrive system performance, scalability, monitoring, and reliabilityRequired:8+ years of experience in software engineeringStrong expertise in system architecture and distributed system designHands-on experience with LLMs (Claude, GPT) and Generative AI systemsDeep understanding of RAG, agentic AI, and prompt engineering techniquesStrong proficiency in .NET and backend system developmentProven experience in leading engineering teams and driving technical deliveryExperience with spec-driven development and enterprise-grade system designTECH STACKApplication: Angular, .Net, .Net Core (Good to Have Python, FastAPI)Database: PostgreSQLArchitecture: Microservices, API orchestration, scalable system designCloud & DevOps: Docker, CI/CD, AWSAI / GenAI: Claude API, MCP, LLMs (Claude, GPT, open source)AI Patterns: Agentic AI, RAG, Vector Databases, Prompt EngineeringAbout ApTask: ApTask is a leading global provider of workforce solutions and talent acquisition services, dedicated to shaping the future of work. As an African American-owned and Veteran-certified company, ApTask offers a comprehensive suite of services, including staffing and recruitment solutions, managed services, IT consulting, and project management. With a focus on excellence, collaboration, and innovation, ApTask provides unparalleled opportunities for professional growth and development. As a member of the ApTask team, you will have the chance to connect businesses with top-tier professionals, optimize workforce performance, and drive success across diverse industries. Join us at ApTask and be part of our mission to empower organizations to thrive while fostering a diverse and inclusive work environment. Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview. Candidate Data Collection Disclaimer: At ApTask, we prioritize safeguarding your privacy. As part of our recruitment process, certain Personally Identifiable Information (PII) may be requested by our clients for verification and application purposes. Rest assured, we strictly adhere to confidentiality standards and comply with all relevant data protection laws. Please note that we only collect the necessary information as specified by each client and do not request sensitive details during the initial stages of recruitment. If you have any concerns or queries about your personal information, please feel free to contact our compliance team at Applicant Consent: By submitting your application, you agree to ApTask's (www.aptask.com) and , and provide your consent to receive SMS and voice call communications regarding employment opportunities that match your resume and qualifications. You understand that your personal information will be used solely for recruitment purposes and that you can withdraw your consent at any time by contacting us at 732-355-8000 or help@aptask.com. Message frequency may vary. Msg & data rates may apply.About ApTask:ApTask is a leading global provider of workforce solutions and talent acquisition services, dedicated to shaping the future of work. As an African American-owned and Veteran-owned company, ApTask offers a comprehensive suite of services, including staffing and recruitment solutions, managed services, IT consulting, and project management. With a focus on excellence, collaboration, and innovation, ApTask provides unparalleled opportunities for professional growth and development. As a member of the ApTask team, you will have the chance to connect businesses with top-tier professionals, optimize workforce performance, and drive success across diverse industries. Join us at ApTask and be part of our mission to empower organizations to thrive while fostering a diverse and inclusive work environment.Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.Candidate Data Collection Disclaimer:At ApTask, we prioritize safeguarding your privacy. As part of our recruitment process, certain Personally Identifiable Information (PII) may be requested by our clients for verification and application purposes. Rest assured, we strictly adhere to confidentiality standards and comply with all relevant data protection laws. Please note that we only collect the necessary information as specified by each client and do not request sensitive details during the initial stages of recruitment.If you have any concerns or queries about your personal information, please feel free to contact our compliance team at .Applicant Consent:By submitting your application, you agree to ApTask's (www.aptask.com) and , and provide your consent to receive SMS and voice call communications regarding employment opportunities that match your resume and qualifications. You understand that your personal information will be used solely for recruitment purposes and that you can withdraw your consent at any time by contacting us at 732-355-8000 or help@aptask.com. Message frequency may vary. Msg & data rates may apply.