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Senior .NET Application Architect

HcltechSeattle, WAApril 9th, 2026
Location: Seattle, WA (Onsite / Hybrid as per client needs) Citizenship Requirement: U.S. Citizens or Green Card Holders only ?? This role supports ITAR-regulated programs. Candidates must be eligible to work on ITAR projects. Role Overview We are seeking a Senior .NET Application Architect / Lead Developer with strong hands-on development experience and proven expertise in application architecture. This role requires deep technical knowledge, ownership mindset, and the ability to collaborate closely with client stakeholders while supporting mission-critical enterprise applications. Primary Skills ASP.NET C#.NET jQuery SQL Server Secondary / Nice-to-Have Skills SlickGrid KnockoutJS Key Responsibilities Design, develop, and maintain enterprise-scale .NET applications with a strong focus on architecture and performance Define and enforce architectural standards and design constraints aligned with business and technical requirements Integrate architectural functions into the full Software Development Life Cycle (SDLC) Evaluate feasibility of architecture solutions and propose alternatives when needed Assess and manage the impact of architectural decisions across the product lifecycle Collaborate closely with client stakeholders and internal teams to support production environments Provide AEC Level 2, 3, and 4 application support in accordance with client standards Upgrade .NET frameworks, jQuery packages, and UI frameworks to enhance security, performance, and compatibility with modern web standards Evaluate third-party products and tools for integration into delivery system environments Draft and maintain data and information management standards and best practices Required Qualifications 7+ years of experience in .NET application development Strong experience in application architecture and design Excellent technical, analytical, and problem-solving skills Strong customer focus with a sense of ownership and accountability Proven leadership, mentoring, and motivational skills Excellent communication and interpersonal skills Experience working in production support environments Why Join Us? Work on high-impact, regulated programs with long-term stability Opportunity to influence architecture and technical direction Collaborative environment with strong client engagement Competitive compensation and benefits Due to ITAR (International Traffic in Arms Regulations) requirements, only U.S. Citizens or Green Card holders will be considered . Pay and Benefits Pay Range Minimum: $ 83000 per year Pay Range Maximum: $ 128000 per year HCLTech is an equal opportunity employer, committed to providing equal employment opportunities to all applicants and employees regardless of race, religion, sex, color, age, national origin, pregnancy, sexual orientation, physical disability or genetic information, military or veteran status, or any other protected classification, in accordance with federal, state, and/or local law. Should any applicant have concerns about discrimination in the hiring process, they should provide a detailed report of those concerns to secure@hcltech.com for investigation. A candidate's pay within the range will depend on their skills, experience, education, and other factors permitted by law. This role may also be eligible for performance-based bonuses subject to company policies. In addition, this role is eligible for the following benefits subject to company policies: medical, dental, vision, pharmacy, life, accidental death & dismemberment, and disability insurance; employee assistance program; 401(k) retirement plan; 10 days of paid time off per year (some positions are eligible for need-based leave with no designated number of leave days per year); and 10 paid holidays per year How You'll Grow At HCLTech, we offer continuous opportunities for you to find your spark and grow with us. We want you to be happy and satisfied with your role and to really learn what type of work sparks your brilliance the best. Throughout your time with us, we offer transparent communication with senior-level employees, learning and career development programs at every level, and opportunities to experiment in different roles or even pivot industries. We believe that you should be in control of your career with unlimited opportunities to find the role that fits you best. J-18808-Ljbffr