Senior Fullstack Developer (Freelance, Remote)

Senior Fullstack Developer

Company Overview

SPACE44 builds and operates software systems for companies that need technology to work reliably in real, day-to-day operations.

We work as long-term engineering partners, embedding experienced engineers into client environments and taking responsibility for execution, stability, and ongoing improvement of production systems. Our work goes beyond traditional staffing or project delivery — we operate the systems we help build.

SPACE44 is a remote-first company. We value clear ownership, practical problem-solving, and engineers who are comfortable running real systems in production.

Who We Are Looking For

We are looking for a Senior Fullstack Developer to join a client project building and maintaining enterprise web applications. This is a hands-on delivery role with ownership across the fullstack, from backend APIs and data layers to responsive frontend interfaces. You will work as part of a distributed team with clear accountability for end-to-end feature delivery.

What You'll Do

• Design, build, and maintain backend services and REST APIs using Node.js
• Develop and maintain frontend applications using React and TypeScript
• Own features across the full stack — from database schema to UI interaction
• Work with relational and/or document databases (PostgreSQL or MongoDB)
• Integrate frontend components with backend services and third-party APIs
• Write clean, well-documented, and testable code across both layers
• Conduct code reviews and provide constructive feedback to peers
• Participate in Agile/Scrum processes including sprint planning and daily standups
• Communicate proactively with team members and client stakeholders
• Log time accurately and maintain clear documentation of work progress

Requirements

• 8+ years of professional experience in fullstack development
• Strong backend experience with Node.js in production environments
• Expert-level React.js with a track record of complex frontend delivery
• Strong proficiency in JavaScript (ES6+) and TypeScript across frontend and backend
• Hands-on experience with PostgreSQL or MongoDB
• Solid understanding of REST API design and integration patterns
• Solid CSS skills including SCSS/SASS
• Experience with state management (Redux or Context API)
• Proficiency with Git version control
• Track record of reliable, consistent delivery in remote teams
• Strong ownership mentality — you deliver what you commit to
• Comfortable with structured processes and daily reporting
• Business-fluent English (written and verbal)

Nice to Have

• Next.js
• AWS or cloud platform experience

CI/CD pipelines

Docker

• Jest or React Testing Library

Embark on your SPACE44 journey with a few simple steps

• Hireflix Chat (20 min): Share how you work and what matters most to you
• HR Sync (45 min): Connect your experience with our goals
• Code Challenge: Complete a 1-2 hour coding session
• Psychometric Insight: Take a 1-hour assessment exploring your strengths and working style

Working Model and Benefits

• Flexible Work Schedule: Enjoy a non-linear workday designed to enhance productivity and maintain a harmonious work-life balance, with core hours for team collaboration
• Professional Growth: Access training opportunities to boost your career prospects
• Innovative Projects and Tools: Engage in cutting-edge projects using the latest tools and technologies within a progressive remote work environment
• Competitive Income: Receive competitive compensation with regular performance reviews and potential raises every six months
• Global Team Dynamics: Collaborate with a diverse, international team that values openness and teamwork
• Fully Remote Environment: Work from anywhere with normal business hours and flexibility, no on-call rotation
• Gradual Onboarding: Start with a planned transition as you get up to speed with our systems and processes