Senior Software Engineer

Fully Remote Position

Preferred Locations: Midwest based; Indianapolis, IN or IL, Chicagoland Area preferred

Who We Are:

We are K1X. Our technology is used by the nation’s largest institutional investors, funds, and accounting firms, by bringing long- established solutions that are creating an all-digital K-1 experience. Our goal is to transform the K-1 industry by moving a traditionally analog based-process to an all-digital experience via our software solutions. Join us at the start of something exciting! Learn more at www.k1x.io

About your Role

We’re seeking an experienced and technically proficient Lead Software Engineer to join our growing engineering team. This is a servant leadership role that combines technical excellence, mentoring, and architecture ownership within a highly collaborative agile team. As a lead, you’ll contribute directly to our codebase, provide hands-on coaching and guidance to engineers, and help shape the team’s engineering culture, tools, and standards.

You should be a self-starter with deep experience across the Microsoft tech stack and a passion for building scalable SaaS products. You’ll play a pivotal role in delivering the high-quality, secure, and performant solutions our clients rely on during their most critical deadlines.

Your Responsibilities

• Lead by example with hands-on development, contributing production-ready code using C# .NET, Angular, and modern cloud-native practices.
• Foster a strong culture of quality by mentoring others in testing practices (unit, integration, end-to-end) and conducting code reviews.
• Act as a technical mentor and coach, providing guidance, pairing, and architectural insight to elevate the team’s performance.
• Partner with the Product Manager and other identified stakeholders to define priorities, identify dependencies, and ensure on-time delivery.
• Guide and support your team during high-pressure periods like peak tax season, including potential on-call rotations.
• Help drive technical decision-making and conduct proof-of-concepts for new tools, frameworks, or patterns.
• Serve as a bridge to leadership—own communication with stakeholders, unblock the team, and represent the group in cross-functional forums.
• Contribute to and advocate for continuous improvement in code quality, tooling, DevOps practices, and team dynamics.
• Maintain a deep understanding of the product domain, including tax workflows, customer needs, and business context.

Requirements

Who You Are:

As the ideal candidate for this role, you possess:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or equivalent work experience.
• 9+ years of software development experience, including 5+ years of team leadership or senior mentoring responsibility.
• A strong focus in full-stack C# .NET web applications, including experience with .NET Core, Typescript/JavaScript (Angular 2+ preferred, React/Vue/etc acceptable).
• Familiarity with SaaS architecture and cloud-native development using:
• Azure Services (Service Bus, Functions, API Manager, Azure SQL, Redis, Postgres DB.)
• Docker and Kubernetes for containerization and orchestration
• Demonstrated expertise in testing strategies using tools like NUnit, MSTest, and Playwright.
• Experience working in Agile/Scrum teams and using Azure DevOps (ADO) or equivalents, Git, and CI/CD pipelines.
• A strong understanding of software design principles, security best practices, and system integration patterns.
• Proven debugging and troubleshooting ability across distributed systems and services.

It's Truly a Match If You Have:

In addition to the above, we're looking for candidates who have:

• Experience with PDF generation/manipulation libraries (e.g., Aspose, IronPDF, iTextSharp).
• Background in tax technology, accounting platforms, or financial services.
• Exposure to AI/ML-driven product features, especially using Python frameworks.
• Entrepreneurial spirit and a passion for driving innovation in the SaaS industry
• A growth mindset and continuous learning—both for yourself and your team.

• The ability to be a hands-on technologist balancing long-term architecture with near-term shipping priorities.
• A culture builder who champions team rituals, celebrates wins, and contributes to a positive remote-first work environment.

Benefits

• Unlimited Vacation Policy + Sick Time + Holidays
• Paid Parental Leave
• Fully Remote Opportunity
• Healthcare Benefits and 401K
• Growing Startup Culture