Team Sparq is committed to creating high-quality tech careers while helping clients accelerate their digital transformation journey. We are committed to being an inclusive workplace, maintaining a culture of equitable, diverse employment and advancement company-wide.

This opportunity will be in a hybrid work environment on our client site

C2C is not available

Must be authorized to work in the U.S. without sponsorship

Why you will enjoy Mondays again:

• Opportunity to collaborate with a diverse group of colleagues in a fun, creative environment
• Progressive career journey and opportunity for advancement
• Continuous development through training, mentorship and certification programs
• Exposure to modern technologies across various industries in an agile environment
• Flexibility to work remotely, onsite or a hybrid of both as desired in certain locations
• Competitive salary + bonus opportunities
• Robust benefits package, matching 401(k) plan, and substantial PTO
• Tuition reimbursement

A Day in the Life:

We are seeking a Principal .NET Engineer to oversee an existing .NET (C#) solution with the goal of transitioning to a modern cloud architecture. This role is ideal for a hands-on leader who can own the technology, drive architectural decisions, and mentor a supporting team of engineers. The ideal candidate will have experience leading large-scale backend engineering efforts, designing scalable solutions, and navigating complex migration and modernization initiatives.

Key responsibilities:

• Serve as the technical owner of the existing .NET (C#) codebase, ensuring stability, performance, and scalability while defining its future roadmap.
• Lead the evaluation of migration strategies to a cloud-based solution, and lead the migration ensuring a seamless transition with minimal disruption.
• Architect, design, and guide the implementation of backend services, ensuring best practices in scalability, security, and maintainability.
• Provide technical oversight as the system evolves, whether through a complete cloud rewrite or a phased transition.
• Work closely with product managers, architects, and other domain teams to define technical requirements and ensure smooth integration of services.
• Act as the bridge between engineering leadership and business stakeholders, communicating technical trade-offs and long-term impacts.

Experience / Qualifications:

• Experience in backend development, with deep expertise in C#, and .NET
• Experience owning and leading the architecture of a large-scale system, including modernization efforts.
• Strong AWS experience, with a solid understanding of cloud-native services, architecture patterns, and migration best practices.
• Proven leadership experience, including mentoring engineers, driving technical direction, and managing complex initiatives.
• Experience with Elasticsearch is a plus.
• Strong ability to evaluate trade-offs between migrating legacy systems vs. building new solutions.
• Excellent communication skills, with the ability to align technical strategies with business goals.
• Experience building and executing on technology roadmaps
• Communicate effectively with stakeholders, including business leaders, developers, and operations teams, to align expectations and provide clear updates.
• Work cross-functionally with security, DevOps, and infrastructure teams to ensure smooth transitions and post-migration stability.
• Problem-solve proactively, addressing risks and dependencies early in the project lifecycle to mitigate disruptions.
• Drive process improvements, identifying opportunities to enhance deployment efficiency, system reliability, and cost-effectiveness.
• Design, code, and test business systems to meet client requirements
• Responsible for successful completion of code deliverables within projects
• Involved in the various phases of the SDLC
• Act as the SME in the web space for the organization
• Lead, coach and mentor other Sparq colleagues
• Provide consultative services to various clients

What it takes:

• Ability to lead, mentor and motivate those around them
• Consultative approach to successfully interact with clients
• Ability to perform project oversight and execution of deliverables
• Flexibility to adapt within a high-growth organization
• Hunger for continuous learning and professional development
• Problem solving skills to tackle business challenges
• Intellectual curiosity to provide creative solutions
• Full understanding of the software development life cycle
• Ability to positively impact members in the development center and local communities through effective leadership, presentations, coaching, etc.
• Desire to work in a team environment
• Good interpersonal, written and verbal communication skills

Equal Employment Opportunity Policy: Sparq is proud to offer equal employment opportunity without regard to age, color, disability, gender, gender identity, genetic information, marital status, military status, national origin, race, religion, sexual orientation, veteran status, or any other legally protected characteristic.

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