Staff Software Engineer (Payments), Backend

Staff Software Engineer

GoodLeap is a technology company delivering best-in-class financing and software products for sustainable solutions, from solar panels and batteries to energy-efficient HVAC, heat pumps, roofing, windows, and more. Over 1 million homeowners have benefited from our simple, fast, and frictionless technology that makes the adoption of these products more affordable, accessible, and easier to understand. Thousands of professionals deploying home efficiency and solar solutions rely on GoodLeap's proprietary, AI-powered applications and developer tools to drive more transparent customer communication, deeper business intelligence, and streamlined payment and operations. Our platform has led to more than $30 billion in financing for sustainable solutions since 2018.

GoodLeap is also proud to support our award-winning nonprofit, GivePower, which is building and deploying life-saving water and clean electricity systems, changing the lives of more than 1.6 million people across Africa, Asia, and South America.

Position Summary

We're looking for a passionate and experienced Staff Software Engineer to join our team that owns the core of our payment technology. In this role, you'll help design, build, and scale both our payments platform and customer-facing payment products, ensuring they are secure, reliable, and performant. You'll collaborate closely with product managers, designers, and fellow engineers to deliver seamless payments experiences that power every transaction.

Key Responsibilities

• Architect, design, and evolve scalable, high-performance APIs in a distributed environment that power Web, Mobile, and partner integrations
• Lead integrations with payment processors and alternative payment rails, ensuring reliability, compliance, and future extensibility
• Collaborate cross-functionally with Product, Risk, Finance, and Operations to translate business requirements into resilient technical solutions
• Drive the full software development lifecycle, from technical design and implementation through testing, deployment, and post-launch support
• Mentor and guide engineers across the team, setting high standards for system design, security, scalability, and code quality
• Champion operational excellence by building and enforcing practices around observability, documentation, monitoring, and alerting
• Proactively identify, troubleshoot, and resolve complex technical issues to maintain high availability and seamless customer experiences

Qualifications

• 8+ years of full-stack development experience with Node.js, TypeScript, NestJS, React, HTML, and CSS
• Experience with cloud infrastructure, preferably AWS
• Strong system design skills with a focus on scalability, reliability, and security
• Excellent communication skills and a collaborative, leadership-oriented mindset
• Passion for clean, maintainable code, mentoring others, and continuous improvement

Bonus Points

• Knowledge of Stripe, QuickBooks, or similar payment platforms
• Experience with C#
• Experience with Datadog or similar observability tools
• Experience in FinTech or other highly regulated industries
• Previous work with real-time payment processing systems

Why Join Us?

• Work on impactful projects that enable sustainability and energy solutions.
• Competitive salary and benefits package.
• Opportunity for professional growth in a collaborative, inclusive, and fast-paced environment.
• Work with a passionate, forward-thinking team dedicated to making a difference.

$173,000 - $200,000 a year In addition to the above salary, this role may be eligible for a bonus and equity.