Mid-Level Software Engineer - US

About the role 

We're looking for a Mid-Level Software Engineer who combines strong engineering fundamentals with sound technical judgment. Someone who can translate requirements into practical solutions, anticipate
challenges and work independently while contributing to the wider team's success. 

This is a full-stack position with a strong backend focus (approximately 75% server-side C#/.NET and 25% frontend across our WPF desktop and React web applications). 

You'll play an important role in delivering the technology behind that transformation. 

What you'll be doing 

• Take component ownership: Design, implement and maintain key areas of the platform, making considered architectural decisions and ensuring your work remains dependable as the product evolves. 

• Deliver end to end: Turn product requirements into well-planned technical solutions, accounting for dependencies such as database migrations, testing, documentation and deployment. 

• Champion engineering quality: Develop meaningful automated tests, validate functionality against real-world client scenarios and address underlying causes rather than temporary fixes. 

• Manage change with confidence: Introduce feature flags and safe deployment strategies, planning database changes that minimise disruption and support continuous delivery. 

• Work across teams: Partner with Product and Support to understand client needs, challenge unnecessary complexity and identify improvements that deliver lasting value. 

• Raise engineering standards: Contribute thoughtful code reviews, share technical knowledge and support colleagues in strengthening their engineering practices. 

What makes you a great fit 

• Proven experience designing, developing and shipping production software. 

• Strong proficiency in at least one statically typed programming language, with the ability to apply sound engineering principles. Our primary stack is C#/.NET. 

• Strong SQL skills, including data modelling, query optimisation and investigating performance issues in production environments. 

• Demonstrated responsibility for features or components beyond initial release, including maintenance and ongoing improvements. 

• A disciplined approach to testing, covering edge cases and real-world scenarios, with the judgment to critically assess and validate AI-generated code. 

• The ability to communicate technical decisions clearly through pull requests, design documentation and engineering discussions. 

• A proactive mindset, with the confidence to challenge assumptions, identify potential issues and recommend practical solutions. 

Bonus points if you bring 

• Commercial C#/.NET development experience. 

• Knowledge of fund accounting, financial services, fintech or other data-intensive industries where accuracy and reconciliation are essential. 

• Familiarity with cloud-hosted SaaS platforms, CI/CD pipelines and container technologies. 

• Experience establishing monitoring, logging and alerting standards for production services. 

• Frontend development knowledge, particularly WPF or React. 

• Exposure to agentic workflows or integrating AI-driven capabilities into software products. 

• Previous experience in an early-stage or high-growth technology business. 

Equal Opportunity Employer 

LemonEdge is an Equal Opportunity Employer committed to fair and equitable hiring practices. All employment decisions are based on business needs, job requirements and individual qualifications, without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or any other characteristic protected by applicable law.