Senior Full Stack Engineer | $30-$90/hr Remote
Overview
Senior Full Stack Engineer needed for a remote contract role. You will help train next generation AI systems by delivering robust, real-world software input and tooling. You'll work across the stack using Typescript, NodeJS, Python, and related tech, collaborating with a distributed team to ship reliable features. This position values depth of domain knowledge and the ability to communicate complex ideas clearly.
What You'll Do7
- 1Design and implement scalable web applications using NodeJS and Typescript alongside Python and Java where appropriate
- 2Partner with cross-functional teammates to define technical solutions and delivery plans
- 3Improve performance, scalability, and maintainability of both backend and frontend components
- 4Participate in code reviews, contribute to architecture discussions, and mentor peers to raise team capability
- 5Debug complex issues, identify root causes, and ensure high-quality user experiences
- 6Deliver features end to end, from API endpoints to frontend components
- 7Convey technical concepts clearly in writing and speaking to diverse audiences
Requirements6
- 1Minimum of 3+ years as a full-stack developer with hands on experience in NodeJS, Typescript, Python, JavaScript, and JAVA
- 2Proven track record building and consuming RESTful APIs
- 3Strong problem solving and meticulous attention to detail
- 4Excellent written and verbal communication skills and ability to work autonomously on a distributed team
- 5Solid grasp of software development best practices and Agile methodologies
- 6Experience with version control systems such as Git
Who Should Apply
Ideal candidates are seasoned full-stack engineers who thrive in a remote, collaborative setting and enjoy shaping how AI models learn through practical, high-quality input. You should bring strong communication skills, a proactive mindset, and the ability to balance frontend and backend work while mentoring teammates.
Salary Insight
Contract role with hourly pay range up to $90/hr depending on experience.
Location
Required Skills
Application Tip
Highlight a concrete project where you delivered cross‑stack features and how you coordinated with remote teams to meet milestones.
Similar open positions
Explore active roles that match your skills and interests.
Yoh, A Day & Zimmermann Company
VerifiedSenior Full Stack Java Spring Angular Developer AI
Senior Full Stack Java Spring Angular Developer with AI leads development of AI-driven solutions. Own Java applications in distributed environments. Mentor junior engineers. Influence technical direction and drive feature enhancements. Collaborate across functional teams to deliver scalable solutions.
Mercor
VerifiedSenior Software Engineer, Full Stack (Python, Java, Rust, C#, C++) | $90-$110/hr Remote
Here's a chance to work on the cutting edge of AI directly with a leading AI lab's GenAI team. As a Senior Full-Stack Engineer, you'll help build and test foundational large language models by creating real applications that push their limits. Your stack will span Python, Java, Rust, C#, C++, and TypeScript, with a focus on quick integration of pre-release APIs. This is a remote, full-time W-2 role through Cincinnatus LLC, offering $90-$110 per hour and the opportunity to collaborate directly with an engineering manager on fast-moving projects.
Micro1
VerifiedSenior Software Engineer | $50-$100/hr Remote
Senior Software Engineer sought for remote contract work focused on shaping AI training data. You’ll craft reinforcement learning environments that stress fix, feature add, refactor, and optimize software systems, ensuring reliable gold standard solutions. This role emphasizes deep domain knowledge across multiple languages and strong documentation to guide AI model learning.
Finoit Inc.
VerifiedSenior Full Stack AI Engineer Python React AWS
Lead ownership of building and deploying production-grade AI-powered applications. Drive development of scalable web applications and APIs using modern full-stack technologies. Collaborate across teams to design and ship innovative solutions.
SansuTek Inc.
VerifiedSenior .NET Full Stack Developer - Cloud Infrastructure Expertise
Design and deliver scalable cloud solutions using Python AWS and React. Lead development of microservices architectures while ensuring high performance and reliability. This role offers opportunities to work on cutting edge projects with a dedicated engineering team. The ideal candidate thrives in a fast paced environment and seeks to expand their expertise in distributed systems.
Micro1
VerifiedFull Stack Developer | $65-$120/hr Remote
A remote contractor role for a Full Stack Developer to help train next generation AI systems. You’ll design and implement end-to-end features that test how models learn, reason, and operate across the full tech stack. Expect to work on Reinforcement Learning Environments, create reproducible setups, and craft gold-standard solutions that demonstrate solid coding and collaboration. Your broad skill set in both frontend and backend will shape real world inputs used for AI training, without requiring prior AI experience.