Nextmark

Senior Software Engineer

Contractor · Remote · 25 openings

In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

Key Responsibilities

  • Design, develop, and maintain scalable software applications and backend systems.
  • Build and optimize RESTful APIs, integrations, and distributed architectures supporting high reliability and performance.
  • Collaborate across engineering, product, and DevOps teams to deliver secure, robust, and cloud-native solutions.
  • Contribute to architectural decisions, technical strategy, and system design discussions.
  • Develop and deploy applications and services across AWS, GCP, and Azure environments.
  • Support DevOps initiatives by enhancing CI/CD pipelines, automating infrastructure, and improving monitoring systems.
  • Communicate clearly and effectively with both technical and non-technical stakeholders in a remote-first environment.

Required Skills & Qualifications

  • Strong proficiency in software development using one or more modern programming languages.
  • Hands-on experience with AWS, GCP, and/or Azure cloud platforms.
  • Knowledge of modern DevOps practices including CI/CD, containerization, and infrastructure automation.
  • Experience with NLP, LLM, and building AI-powered or data-driven systems.
  • Proficiency in JavaScript/TypeScript and React; experience with frontend development is a plus.
  • Solid understanding of software architecture, distributed systems, and engineering best practices.
  • Outstanding written and verbal communication skills.

Preferred Qualifications

  • Background in multi-cloud or distributed system environments.
  • Experience leading technical initiatives or mentoring fellow engineers.
  • Active contributions to open-source projects or technical communities.

$40–$120/hr

Remote