Senior Backend Engineer
Micro1 • Remote
Education
Master's
Type
Per task
Pay Rate
$50–$100/task
Actively Hiring
10 openings
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- Interview
- Required i As stated in the listing: “Role Type: Contractor (20 hrs perweek)”
- Weekly hours
- 20 hrs/week
- Start timeline
- Starts within 24–48 hrs of onboarding
About this role
From the Micro1 listing
Role Title: Senior Backend Engineer Role Type: Contractor (20 hrs perweek) Location: Remote micro1 is engaging Senior Backend Engineers to participate in an advanced project for a customer, focused on creating sophisticated Reinforcement Learning Environments for AI model training and evaluation. 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. As an expert, you will create Reinforcement Learning Environments that test an AI model’s ability to design, deploy, troubleshoot, secure, scale, and recover production-grade cloud infrastructure. You will develop realistic scenarios involving distributed systems, networking, IAM, queues, durable storage, observability, rolling deployments, and disaster recovery, then build reproducible environments, deterministic validation tests, golden reference solutions, and intentionally defective variants.
Scope of Work
- Design, develop, and implement realistic cloud infrastructure environments to evaluate AI model proficiency in systems design, deployment, and troubleshooting.
- Create detailed and reproducible scenarios involving distributed systems, networking, Identity and Access Management (IAM), message queues, persistent storage, observability, rolling deployments, and disaster recovery.
- Develop deterministic validation tests and golden reference solutions to ensure the reliability and accuracy of reinforcement learning environments.
- Produce intentionally defective variants and failure scenarios to rigorously test AI model responses and recovery strategies.
- Document the architecture, edge cases, and operational flows for all developed environments, ensuring clarity and reproducibility for future use.
- Collaborate with technical leads and project participants to iteratively refine environment specifications and acceptance criteria.
- Apply DevOps and infrastructure automation practices to deliver scalable, secure, and maintainable solutions for cloud-based systems evaluation.
Preferred Qualifications
- Proven expertise with backend programming languages, such as C++, Python, Rust, GoLang, JAVA, or JavaScript.
- Strong practical experience with DevOps, cloud infrastructure, CI/CD pipelines, and automation tools.
- Demonstrated ability to architect, scale, and secure distributed systems in production-grade environments.
- Deep understanding of networking, IAM, queues, durable storage, and disaster recovery concepts.
Process
- Apply to the role, filling out the screening questions
- Complete AI interview (aprox. 30 minutes), reviewed by recruiters)
- Hiring Manager review
Compensation Structure
Compensation is output-based; experts are paid per task that meets the project specifications. The time required to complete work may vary depending on the expert’s experience and workflow. Minimum submission requirements apply. Experts must submit a minimum of tasks per week.
Start Timeline & Availability
We typically fill roles within 48 hours and are looking for experts ready to jump in right away. If selected, we expect you to start your first tasks within 24–48 hours of completing onboarding.
Requirements
- C++
- Python
- Rust
- GoLang
- JAVA
- JavaScript
- DevOps
How long hiring takes
Across the AI training platforms we refer candidates to, the median gap between referral and hire is about 30 days. It varies by platform and role, so treat it as a rough guide for this one.
Interview Prep
This listing calls for these tools directly. Prep for the technical screen:
Key responsibilities
- Design, develop, and implement realistic cloud infrastructure environments to evaluate AI model proficiency in systems design, deployment, and troubleshooting.
- Create detailed and reproducible scenarios involving distributed systems, networking, Identity and Access Management (IAM), message queues, persistent storage, observability, rolling deployments, and disaster recovery.
- Develop deterministic validation tests and golden reference solutions to ensure the reliability and accuracy of reinforcement learning environments.
- Produce intentionally defective variants and failure scenarios to rigorously test AI model responses and recovery strategies.
Why this role
The Senior Backend Engineer role at micro1 pays $50-$100 per task for a roughly 20-hour-a-week commitment building Reinforcement Learning Environments for AI model training. The work spans C++, Python, Rust, Go, Java and JavaScript alongside DevOps practice, so engineers comfortable moving across languages fit best. This role centers on environment design rather than a single production codebase.
Talent pool
We're light on STEM candidates
We've matched 65 people with a STEM background against 726 STEM listings we've tracked, so most go out without one. Set up a profile and we'll consider you for a role like this one.
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Common questions
What does the Micro1 application process look like?
Expect a screening interview with Zara, Micro1's AI recruiter. Prepare for it like a real video call: good lighting, clear audio, verbal answers to technical questions. A human manager reviews the recording afterward, and some roles add a short skills assessment on top.
Can I apply to Micro1 from outside the US or UK?
Yes. Micro1 accepts applicants from most countries worldwide, unlike DataAnnotation or Outlier, both of which cap access to a handful of English-speaking countries. Most roles still require strong written and spoken English.
Is academic-niche AI training just data labeling?
No, it's closer to academic research. Expect to write or verify complex proofs, solve advanced equations, or check the logic behind a model's step-by-step reasoning. The goal is teaching AI systems to reason deeply within your specific field.
Do I need a PhD for academic-niche AI training roles?
For the top pay tiers, a PhD or current enrollment is usually expected. But the domain assessment is what decides it: if you can solve the problems, the degree becomes secondary.
What does STEM work look like for a Senior Backend Engineer?
Tasks here are scoped to STEM, not generic labeling. As a Senior Backend Engineer, expect to draw on real domain judgment (evaluating outputs, correcting errors, or providing expert reasoning specific to STEM) rather than following a one-size-fits-all rubric. If you don't have hands-on STEM background, this is likely not the right listing to start with.
What specific skills does this listing call for?
C++, Python, Rust, and GoLang are named directly in the listing. If you don't have hands-on experience with these, expect the screening process to test for them directly rather than accepting adjacent experience as a substitute.
How many hours per week does this role require?
Based on the listing, this role is scoped at about 20 hours per week. Treat this as a real commitment expectation, not a loose estimate.
What does the 'openings' count on this listing mean?
It's Micro1's live count of how many candidates it's still trying to place for this specific role, 10 right now, not a countdown on your individual application. A higher number signals more active demand; it doesn't lower the bar for acceptance.
How much does this specific role pay?
This listing is posted at $50–$100/task, a per-task rate. The range reflects experience level and negotiated terms, not a placeholder, so where you land in it depends on your background and the assessment. Pay can change between when we last checked the listing and when you apply, so confirm the current number on the platform's own application page before committing time.
How does per-task pay translate to an hourly rate?
It doesn't directly, that's the catch. Each task has a listed price and an estimated completion time, but your actual effective rate depends on how fast you work. If a task is estimated at 20 minutes and pays $8, that is $24/hr for a fast worker and $12/hr for a slow one. Track your actual time on the first few tasks before treating the listed rate as your real hourly income.
What happens when I click Apply on this listing?
You'll be taken to Micro1's external site to complete your application there. This listing links through a referral, but the process is identical to applying directly; the link just routes you correctly. Create an account on their site and follow their onboarding steps.
Do I need a Master's to qualify?
This role lists a master's degree as a requirement. In practice, the domain assessment is the real gate. If you can pass it, the degree is usually secondary. However, some platforms verify credentials formally, so list your actual qualifications accurately on your profile.
Is there an interview?
Yes. Complete AI interview (aprox. 30 minutes), reviewed by recruiters