Senior Full Stack Software Developer Jobs in Sun Prairie, WI

Location:Remote - Preference for NYC - Or Remote USA OR EUROPE to work a 5 hour overlap with EST hours

Remote | Full-time

Compensation: $144K - $164K

Our client is a pioneer in automated, on-chain economic security, providing a sophisticated system that enables crypto protocols to optimize risk management and capital efficiency. By analyzing protocol mechanics and scenario implications through world‑class custom EVM simulations, the platform provides actionable insights trusted by leading decentralized finance (DeFi) protocols to manage and secure billions of dollars in assets.

The organization is seeking a proactive and results‑driven Senior Full Stack Engineer to join the team. Reporting directly to the Platform Team Lead, the successful candidate will play a critical role in building data‑driven dashboards and tools to support complex risk analysis. This role involves close collaboration with research and protocol teams to deliver high‑quality frontend and backend components that power essential security insights.

Key Responsibilities

• Project Ownership: Take full accountability for projects by breaking down high‑level goals into actionable tasks, proposing technical approaches, and driving execution from end‑to‑end.
• Frontend Development: Design and implement scalable dashboards and tools that visualize protocol risk, ensuring tight integration with backend data sources.
• API Management: Build and maintain robust GraphQL APIs and data services to power the user interface and internal tooling.
• Platform Evolution: Own the development, architectural improvements, and performance optimization of the Alert Portal.
• Insight Presentation: Partner with research and protocol teams to understand DeFi protocols deeply and present findings through intuitive, data‑rich interfaces.
• Mentorship: Support junior engineers by sharing best practices in full‑stack development and high‑quality engineering standards.
• Technical Excellence: Ensure code quality and maintainability through rigorous testing, documentation, and comprehensive code reviews.
• Innovation: Identify product opportunities and technical improvements across the platform while collaborating with cross‑functional teams to ensure high‑quality outputs.

Interview Process

1. Initial Screening: 30‑minute Recruiter / HR Call.
2. Hiring Manager Interview: 1 hour and 30 minutes.
3. Technical Evaluation: 45‑minute whiteboard exercise.
4. Executive Interview: 30‑minute discussion with the Founder / CEO.

• Professional Experience: 5+ years of experience in full‑stack development with modern technologies (Node.js, Python, etc.).
• Data Expertise: Strong experience with data warehousing, pipelining, and infrastructure.
• Frontend Proficiency: Proven track record of building React‑based web applications and data‑intensive analytics dashboards.
• API Design: Solid understanding of API design, specifically using GraphQL.
• Independent Execution: Proven ability to independently manage projects and deliver production‑grade features with minimal supervision.
• Adaptability: Comfort working in dynamic, high‑ownership environments with shifting priorities.
• Domain Passion: Strong problem‑solving abilities and a genuine passion for DeFi and blockchain technology.

Preferred Qualifications

• Based in USA remote or NYC to work in the Brooklyn office or Europe
• Experience designing, developing, and operating cloud‑native services (AWS/GCP).
• Strong foundation in frontend best practices, including accessibility, performance, and testing.
• Familiarity with CI/CD pipelines and modern DevOps workflows.
• Interest in or curiosity about DeFi and blockchain technologies.
• Excellent communication skills and the ability to work cross‑functionally in a fast‑paced environment.

Our client offers a comprehensive compensation and perks package:

• Salary: $144,000 - $164,000 USD (commensurate with experience and seniority).
• Health & Wellness: 100% employer‑paid health benefit options (Medical, Dental, and Vision) for employees and their dependents.
• Financial Security: FSA or HSA options (depending on selected health insurance) and pre‑tax commuter benefits.
• Time Off: Competitive PTO (21 days) plus 7 sick days and 8 observed US company holidays.
• Family Support: A thoughtful and inclusive Parental Leave Policy.
• Wellness Programs: Access to corporate wellness initiatives including OneMedical, Teladoc, Talkspace, and EAP.
• Growth: Career advancement opportunities at a rapidly expanding, global technology company.

Commitment to Equality and Accessibility:

At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job‑advert in an accessible format please let us know at the earliest opportunity by emailing human‑resources@mlabs.city.

MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.