Backend Developer - Data Annotation Systems
Job in
Schenectady, Schenectady County, New York, 12301, USA
Listed on 2026-10-30
Listing for:
Alignerr Corp.
Full Time, Part Time
position Listed on 2026-10-30
Job specializations:
-
Software Development
Python, Backend Developer, AI Engineer (Applied/Software)
Job Description & How to Apply Below
The Role What if your Python expertise could directly shape the infrastructure behind the most advanced AI systems in the world? We're looking for a Senior Python Full-Stack Engineer to design and build the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and improve next-generation models. This is a fully remote, flexible contract role for an experienced engineer who thrives on high-impact systems work and wants to be close to the frontier of AI development.
- Organization:
Alignerr - Type:
Hourly Contract - Location:
Remote - Commitment: 20–40 hours/week
- Design, build, and optimize high-performance Python systems that power AI data pipelines and model evaluation workflows
- Develop full-stack backend services and tooling for large-scale data annotation, validation, and quality control
- Build and maintain asynchronous task queues to handle complex, long-running background jobs at scale
- Optimize database queries for high-read/write workloads and serve data via real-time protocols such as Web Sockets
- Improve reliability, performance, and safety across existing Python codebases
- Collaborate closely with data, research, and engineering teams to support model training and evaluation workflows
- Identify bottlenecks and edge cases in system and data behavior, then implement scalable, production-ready fixes
- Participate in synchronous design reviews to iterate on architecture and implementation decisions
- Native or fluent English speaker with clear written and verbal communication skills
- Full-stack developer with a strong systems programming background and 3–5+ years of professional Python experience
- Proven experience building and shipping production-grade Python applications
- Experienced with asynchronous task queues and background job processing
- Skilled at optimizing database performance for demanding, high-throughput applications
- Comfortable working with real-time data protocols (e.g., Web Sockets)
- Self-directed and reliable — able to commit 20–40 hours per week and deliver consistently without hand-holding
- Prior experience with data annotation, data quality pipelines, or model evaluation infrastructure
- Familiarity with AI/ML workflows, model training, or benchmarking systems
- Experience with distributed systems, developer tooling, or data engineering
- Work directly with leading AI labs on production systems that matter
- Fully remote and flexible — structure your work around your schedule
- Freelance autonomy with the substance of high-impact engineering work
- Get hands-on exposure to the cutting edge of AI infrastructure and research workflows
- Potential for ongoing work and contract extension as projects scale
To View & Apply for jobs on this site that accept applications from your location or country, tap the button below to make a Search.
(If this job is in fact in your jurisdiction, then you may be using a Proxy or VPN to access this site, and to progress further, you should change your connectivity to another mobile device or PC).
(If this job is in fact in your jurisdiction, then you may be using a Proxy or VPN to access this site, and to progress further, you should change your connectivity to another mobile device or PC).
Search for further Jobs Here:
×