Full Stack Software Developer

JustPaid; San Francisco (CA); Remote; USD 120,000 - 150,000; Full time

Job summary

A financial tech startup is seeking a Full Stack Software Developer to join their innovative team. This early role offers real ownership and the opportunity to ship meaningful products that empower finance teams. Candidates should have 6+ years of software development experience and be comfortable working remotely. The position emphasizes collaboration with product, design, and customers, along with a focus on clear communication and curiosity in tackling challenges. The company values fast-paced work and aspirations to build significant financial infrastructure.

Qualifications

• 6+ years of experience in software development, particularly in full stack roles.
• Ability to work remotely and collaborate with teams effectively.
• Experience shipping products used by finance teams.

Responsibilities

• Build core product features used daily by finance teams.
• Ship to production and work across the stack.
• Collaborate closely with product, design, and customers.
• Help define technical direction as the company grows.

Skills

Strong fundamentals

Genuine curiosity

Ownership mindset

Clear communication

Comfort with ambiguity

Job description

Engineering, Full Stack Full time Mountain View / San Francisco / Sunnyvale, CA 6+ years Will sponsor

Full Stack Software Developer

Required Skills:

This is an early role with real ownership. You'll ship meaningful product, touch real production systems, and help shape the technical direction as we scale. If you want to look back one day and say, "I helped build that from the ground up," this is that role.

JustPaid is a startup on a mission to modernize the financial infrastructure that powers how companies sell to other companies. We are building the financial operating system for the next generation of businesses.

Founders, executives, startups, and finance teams are drowning in time-sucking financial work: messy sales contracts, fragmented billing models, unpredictable cash flow, and outdated, expensive tools that slow everything down.

The financial stack today is broken.

We are not building another dashboard or another shallow app. We are building real infrastructure that sits at the core of how modern companies make and collect money.

• Build core product features used daily by finance teams and founders
• Work across the stack and ship to production
• Collaborate closely with product, design, and customers
• Help define technical direction as the company grows

What We Value

• Strong fundamentals and genuine curiosity
• Ownership mindset and high agency
• Comfort with ambiguity and fast iteration
• Clear communication and deep respect for users

The Kind of Person Who Thrives Here

You don't need to check every box.

If you're smart, driven, and excited about building something important—and you want to be part of a small team that moves fast and cares about doing things the right way,we want to hear from you.

You'll work closely with the team and founders remotely, with a lot of trust, autonomy, and support.

Why This Role Is Special

Real Ownership

Ship meaningful product, touch real production systems, and help shape the technical direction

Work with Founders

You'll work closely with the team and founders with a lot of trust, autonomy, and support

Bay Area Based

We're especially excited to work with engineers in the Bay Area. Build with a tight, founder-led team.

You'll start with a Zoom conversation with the founders and team to see if there's a fit.

We don't do long, drawn-out interview loops. We keep it simple and respect your time.

If there's mutual interest, we'll ask you to show us something you're genuinely excited about—anything works:

• A side project
• An experiment or prototype
• A tool you've built and love
• Or a walkthrough of your GitHub and the work you're most proud of

We move fast, communicate clearly, and make decisions quickly—without unnecessary steps.

We're especially excited to work with engineers based in the Bay Area. Build from anywhere, but if you're nearby, even better. You'll work with a tight, founder-led team.

Ready to join us?

Take the next step. Apply now and help us build the financial operating system for the next generation of businesses.