Software Engineer, Labs

FirstMile Ventures; United States; On-site; USD 160,000 - 180,000; Full time

Benefits offered by this job

Competitive compensation

Comprehensive medical, dental, and vision coverage

Generous paid time off

401(k) with company match

Paid parental leave

Wellness programs

Learning and development support

Job summary

FirstMile Ventures is seeking a Senior Full-Stack Engineer to build pioneering human-AI interfaces at Pax8 Labs. You will design intuitive user experiences for autonomous technologies, collaborate on real-time data solutions, and establish frontend standards. This role demands strong frontend skills in modern frameworks like React or Vue, complemented by backend knowledge in Go or Python. The compensation ranges from $160,000 to $180,000, with benefits including comprehensive health coverage and a collaborative work environment.

Qualifications

• Substantial experience building modern frontend applications.
• Proven ability with TypeScript, modern CSS, and responsive design.
• Demonstrated skill creating high‑performance interactive interfaces.

Responsibilities

• Design and build intuitive, responsive interfaces.
• Create real‑time visualisations to communicate system status.
• Enable seamless human‑AI collaboration through thoughtful design.

Skills

React

TypeScript

CSS

SVG

Canvas

WebGL

Go

Python

Job description

Senior Full-Stack Engineer, Labs — United States

Build pioneering human‑AI interfaces at Pax8 Labs, where Senior Full‑Stack Engineers shape the future of autonomous technology through elegant, scalable user experiences.

Why This Role Stands Out

At Pax8 Labs, you won’t just build software — you’ll help define how humans and autonomous systems work together. This role offers the opportunity to design intuitive, trustworthy interfaces for complex AI‑driven workflows in a true greenfield environment. You’ll grow alongside emerging technologies, experiment boldly, and influence entirely new product lines as Pax8 continues its AI‑native journey.

What You’ll Be Doing

• Design and build intuitive, responsive interfaces that simplify complex AI and agent‑based workflows
• Create real‑time visualisations that clearly communicate system status and decision‑making
• Enable seamless human‑AI collaboration through thoughtful interaction design
• Develop reusable UI components that scale across future Labs initiatives
• Extend into backend services and cloud APIs when needed to deliver end‑to‑end solutions
• Prototype with emerging frameworks and AI‑assisted development tools
• Contribute to a culture of experimentation, knowledge sharing, and continuous improvement

Your Impact

Your work will directly shape how partners and internal teams interact with autonomous systems, turning advanced technology into accessible, trusted tools. You’ll help establish frontend standards for Pax8 Labs while influencing how future products are conceived and delivered.

What You Bring

• Substantial experience building modern frontend applications with frameworks such as React, SolidJS, Vue, or similar
• Proven ability with TypeScript, modern CSS, and responsive design
• Demonstrated skill creating high‑performance, interactive interfaces using SVG, Canvas, or WebGL
• Strong understanding of real‑time data handling, dynamic state management, and streaming updates
• Working knowledge of backend fundamentals, including Go or Python services and cloud‑based APIs
• Comfort operating in ambiguity, rapidly prototyping, and iterating toward scalable solutions
• A collaborative mindset and passion for design craft, accessibility, and performance

Trust and Hiring

At Pax8, we care deeply about building genuine, trust‑based relationships — starting with how we hire. To protect our business, our teams, and our customers, we use a range of measures throughout the recruitment process to help confirm authenticity and prevent fraud. These safeguards are designed to be fair, respectful, and proportionate, and may evolve as risks change. By applying, you acknowledge that we take steps to verify identity and representation during hiring.

Inclusivity

We encourage you to apply even if you don't meet 100% of the criteria. We're committed to diverse perspectives, inclusive hiring and sharing your transferable skills. To fulfil this role, you must hold valid right to work in the United States.

Benefits

• Competitive compensation
• Comprehensive medical, dental, and vision coverage
• Generous paid time off and paid holidays
• 401(k) with company match
• Paid parental leave
• Wellness programs and employee assistance resources
• Learning and development support

Equal Opportunities

Pax8 is an equal opportunities employer and welcome individuals who are in possession of the appropriate requirements to work within the country you have applied for. Offered individuals will be asked to undertake identity, security compliance and reference checks. Your privacy is important to us. Your data will be held in accordance with local best practices and processed only in accordance with our recruiting processes.

Compensation

Qualified candidates can expect a compensation range of $160,000 to $180,000 or more depending on experience.

Expected Closing Date: 5/1/2026