Fullstack Engineer, AI Implementation

Oneleet; Amsterdam; On-site; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Remote work culture

Team off-sites in inspiring locations

Competitive compensation & equity

20 days PTO + 8 floating holidays

Job summary

Oneleet is a fast-growing security and compliance platform hiring a Senior Fullstack Engineer to lead AI integration across our product. You’ll work on Go backend APIs and React frontend, design context gathering for AI services, and build UI components that surface AI insights to customers.

You’ll collaborate with the AI team, optimize API calls, implement robust error handling, and iterate with customers to improve UX while shipping features quickly and securely.

Qualifications

• 5+ years of fullstack software development with Go and JavaScript
• Experience building production APIs (REST and/or gRPC)
• Proven track record of building responsive UIs with React or similar
• Experience with data transformation and cross-system mapping
• Strong understanding of asynchronous programming and API optimization
• Experience gathering user requirements and translating feedback into improvements
• Solid debugging across backend to frontend
• Experience with production monitoring, logging and observability
• Strong communication skills and comfort working with customers
• Ability to balance technical excellence with shipping valuable features

Responsibilities

• Integrate AI service endpoints into the platform, handling authentication, errors, and responses.
• Design and implement context gathering to feed AI services with security data.
• Build UI components in JavaScript/React to present AI insights and automations.
• Map AI responses to actionable UI elements driving user action.
• Implement robust error handling and fallback behaviors for unavailable AI services.
• Create feedback loops from user interactions to drive improvements.
• Work with customers to understand AI usage and iterate UX.
• Optimize API calls to AI services and implement caching where appropriate.
• Build analytics to track AI feature usage, success rates, and engagement.
• Collaborate with AI team to communicate platform needs and feedback.
• Develop reusable patterns for AI integration across features.
• Ensure AI features align with existing workflows and patterns.

Skills

Go

JavaScript

REST API

gRPC

React

Async programming

Requirements gathering

Debugging

Monitoring & observability

Customer communication

Feature shipping

Tools

REST APIs

React

Go

Job description

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.

Key Responsibilities

• Integrate AI service endpoints into our platform, handling authentication, error states, and response processing.
• Design and implement context gathering systems that pull relevant security data from across our platform to feed into AI services.
• Build intuitive UI components in JavaScript/React that present AI-generated insights, recommendations, and automations to users.
• Map AI service responses to actionable UI elements, ensuring complex outputs are presented clearly and drive user action.
• Implement robust error handling and fallback behaviors when AI services are unavailable or return unexpected results.
• Create feedback loops that capture user interactions with AI features to drive continuous improvement.
• Work directly with customers to understand how they use AI features and rapidly implement UX improvements.
• Optimize API calls to AI services for performance, implementing caching where appropriate while maintaining data freshness.
• Build monitoring and analytics to track AI feature usage, success rates, and user engagement.
• Collaborate with the AI team to communicate platform needs and user feedback that could improve the underlying services.
• Develop reusable patterns and components for AI integration that can be leveraged across different features.
• Ensure AI features integrate smoothly with existing platform workflows and don't disrupt current user patterns.

Qualifications

• 5+ years of fullstack software development experience with expertise in Go and JavaScript.
• 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.
• Experience gathering requirements from users and translating feedback into technical improvements.
• Solid debugging skills across the full stack – from backend services to frontend UI.
• Experience with production monitoring, logging, and observability tools.
• Strong communication skills and comfort working directly with customers.
• Ability to balance technical excellence with shipping features that provide immediate value.

Bonus Experience

• Previous experience integrating AI/ML services into production applications.
• Background in cybersecurity or security tools.
• Experience with real‑time data updates and WebSocket implementations.
• Experience building data visualization components.

You should apply if any of the following excite you:

• Making powerful AI capabilities accessible through thoughtful engineering and design.
• Working directly with customers to refine features based on real‑world usage.
• Building the integration layer that turns AI potential into practical security solutions.
• Owning features end‑to‑end from backend integration to frontend presentation.
• Creating patterns and systems that will scale as we add more AI capabilities.
• Being part of bringing AI‑powered automation to the cybersecurity industry.

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.

We hire globally and compensate competitively within each market using geographic pay bands. The range for this role reflects a US national baseline. Offers for candidates in higher cost‑of‑labor markets (e.g., San Francisco, New York, Zurich) may fall at or above the top of the posted range, while offers in other markets are benchmarked to local standards and are lower. Within any range, individual compensation is determined by work location, skills and experience demonstrated through the interview process, and relevant education or training. This posting reflects base salary only and does not include equity or benefits.

Remote-First & Global Hiring

We’re a remote‑first company and hire globally in regions where we can legally engage talent directly or via our employer‑of‑record (EOR) partner. If you’re based outside the U.S., we’ll explore the most compliant hiring arrangement for your location. We make hiring decisions based on merit, skills, and potential regardless of location.

U.S. Hiring & E‑Verify

For U.S.-based candidates, Oneleet participates in E‑Verify to confirm employment eligibility, in accordance with federal regulations. We are an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other characteristic protected by applicable law.