About Oneleet

Oneleet is one of the fastest-growing security and compliance platforms in history. We are on a mission to change the compliance and security industry by making cybersecurity and compliance effective, easy, and painless. We provide a platform that helps companies build, manage, and monitor their cybersecurity programs and achieve compliance standards such as SOC 2 and ISO 27001 efficiently, without cutting corners.

Having just raised a $33 million Series A, we are rapidly growing in customers and employees. Our team has decades of experience in security and compliance. Join our team of opinionated rebels and help us build a category-defining company reshaping the broken and fragmented compliance and cybersecurity industry.

Who we’re looking for

We value passionate self-starters with a growth mindset and a bias for action and personal accountability. If you love solving hard problems, thrive in ambiguity, and want to make a real impact, you’ll fit right in.

We’re especially drawn to:

Rebels with a cause — frustrated with the status quo and eager to disrupt it.
Opinionated (but not obstinate) builders — decisive yet collaborative, who help us move fast.
Clear communicators — who own their ideas and follow through.

Our mission is simple: make effective cybersecurity painless. We believe cybersecurity should empower, not burden. This belief unites our team and drives every decision we make.

If you’re ready to challenge the status quo and help shape the future of cybersecurity, we’d love to meet you.

The Role

As a Fullstack Engineer at Oneleet, you'll work across our entire stack to ship features that make our cybersecurity platform fast, reliable, and genuinely useful for security teams. You'll own features end-to-end — from backend services and APIs through to the UI components that customers interact with day-to-day.

This is a hands-on engineering role at a Series A startup. You'll work closely with backend engineers, AppSec, design, and product to take features from mock-up to shipped product, and you'll engage directly with customers to iterate based on real-world usage.

Working primarily in Go, TypeScript, and React, you'll help us ship fast without sacrificing reliability or design quality.

Key Responsibilities

Build features end-to-end across backend (Go) and frontend (React/TypeScript)
Design and implement APIs that power dashboards, workflows, and reporting
Build UI components that present complex data clearly and drive user action
Map complex backend data to clear, actionable interfaces
Implement robust error handling and fallback behaviors for upstream service failures
Optimize end-to-end performance, including caching, pagination, and query design for high-volume data
Develop reusable patterns and components that scale across many areas of the platform
Work directly with customers and design partners to understand how features are used and iterate rapidly
Build monitoring and analytics to track feature usage, success rates, and user engagement
Collaborate with AppSec, backend, and design on how data flows from services through to the UI

Qualifications

2-4 years of fullstack software development experience with expertise in Go and JavaScript/TypeScript
Strong experience building production APIs (REST and/or gRPC) and integrating with third-party services
Proven track record of building responsive, intuitive user interfaces with modern JavaScript frameworks (React preferred)
Experience with data transformation and mapping between different system formats
Strong understanding of asynchronous programming patterns and API optimization techniques
Solid debugging skills across the full stack — from backend services to frontend UI
Experience with production monitoring, logging, and observability tools
Experience gathering requirements from users and translating feedback into technical improvements
Strong communication skills and comfort working directly with customers
Ability to balance technical excellence with shipping features that provide immediate value

Bonus Experience

Background in cybersecurity or security tools
Experience building data visualization components
Experience with workflow engines and async job orchestration

Why Oneleet?

At Oneleet, you’ll join a tight-knit team of rebels redefining the cybersecurity industry. We move fast, own our work, and challenge outdated models to make security effortless and effective for companies.

Here’s what makes us special:

We value impact over titles, autonomy over micromanagement, and clarity over jargon.
You’ll tackle meaningful, hard problems with real-world consequences.
You’ll work with smart, kind, and ambitious teammates who lift each other up.

Perks & Benefits

Comprehensive health & wellness benefits
20 days PTO per year, plus 8 floating holiday
Remote work culture
Team off-sites in stunning places (Amsterdam, Italy, etc).
Competitive compensation & equity

Fullstack Engineer