Sr. Software Engineer - Full Stack; NGL; Remote

Who We Are

Mode Mobile builds products that allow millions of users to earn rewards from the content, communities, and experiences they already love. Through organic growth and strategic acquisitions, we operate and scale high-traffic consumer platforms used by tens of millions of users worldwide.

One of our newest platforms, NGL, is a viral, Gen‑Z social product built around anonymous messaging, creator dynamics, and authentic self‑expression, reaching over 144 million monthly users across web and mobile (121 million on web, 23 million on mobile). The platform combines massive scale, rapid iteration, and meaningful opportunities for experimentation, monetization, and infrastructure evolution. We are investing deeply in engineering to support its next phase of growth.

Our culture values ownership, curiosity, speed, and accountability. We expect engineers to think like product owners, move quickly with intention, and care deeply about quality, users, and the outcomes they deliver.

Our team is the heart of our culture. We value innovation, collaboration, and curiosity, with a passion for getting things done. We strive to hire and cultivate the best team members and foster a culture of open communication and transparency. We are driven and hard‑working but also committed to having fun along the way. We allow OKRs to guide us, assume positive intent, sometimes agree to disagree and commit, honor our commitments, seek to accomplish more with less, and encourage everyone to speak up as our team owns our company’s success.

You can read more about our team and how we work here.

We are looking for a Senior Software Engineer (Full Stack) to help build, scale, and evolve NGL, a high‑traffic social platform used by millions of people every day.

In this role, you will primarily work on the NGL mobile apps while contributing to backend services, web development, and infrastructure, and partnering closely with Product, Design, Data, and Growth. You’ll own features end‑to‑end, from technical design through production, making architectural tradeoffs, ensuring production readiness, and contributing to system scalability, performance, and reliability.

This is a hands‑on senior IC role for someone who thrives in fast‑moving environments, cares about product outcomes, and enjoys solving complex engineering problems at scale.

• Design, implement, and ship full‑stack features supporting messaging, engagement, notifications, creator workflows, safety, and monetization.
• Contribute across mobile, web, and backend services/APIs.
• Break down complex product requirements into clear technical designs and deliverables.

• Contribute to React Native and Swift codebases.
• Partner with Design and Product to deliver intuitive, performant user experiences.

• Build and update APIs using Node.js / Type Script, primarily within Firebase‑based systems.
• Design systems for high throughput, low latency, and global traffic spikes.

• Improve system performance, observability, and operational excellence.
• Participate in on‑call rotations and lead production issue investigation and resolution when needed.
• Proactively identify and address scalability bottlenecks through profiling, refactoring, and architectural improvements.

• Partner with Product and Data to run experiments, A/B tests, and rapid iteration cycles.
• Use metrics and experimentation results to inform engineering decisions.
• Support new monetization models and feature launches through fast, reliable execution.

• Collaborate closely with Product Managers, Designers, Data, and Growth partners.
• Actively participate in and help drive technical design reviews and architecture discussions.
• Mentor junior and mid‑level engineers through thoughtful code reviews, pairing, and knowledge sharing.
• Contribute to engineering standards, documentation, and best practices.

• 5+ years of professional software engineering experience.
• Direct experience working on…