AlignerrCoding & software eval
Desenvolvedor Back End (Infraestrutura de IA)
up to $100/hr
About this role, in Alignerr's words
What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable microservices that handle real-world traffic at scale.
What you'll do
- Design, develop, and maintain robust back end services, APIs, and data pipelines
- Build scalable, high-performance server-side architecture to support AI training and inference workloads
- Write clean, well-documented, and testable code following engineering best practices
Show all 8 itemsHide the other 5 in What you'll do
- Integrate with databases, message queues, cloud services, and third-party APIs
- Optimize system performance, reliability, and scalability as usage grows
- Collaborate asynchronously with distributed teams of engineers, researchers, and product leads
- Troubleshoot production issues, conduct code reviews, and contribute to architectural decisions
- Work independently on task-based and project-based assignments on your own schedule
Candidate background
Who You Are
- Proficient in one or more back end languages — Python, Go, Java, Node.js, Rust, or similar
- Solid understanding of RESTful API design, microservices architecture, and distributed systems
- Experienced with relational and/or NoSQL databases (PostgreSQL, MongoDB, Redis, etc.)
- Comfortable working with cloud platforms such as AWS, GCP, or Azure
- Familiar with version control (Git), CI/CD pipelines, and containerization (Docker, Kubernetes)
- Strong problem-solving skills and the ability to debug complex systems independently
- Self-motivated, reliable, and effective when working asynchronously without close supervision
- Clear communicator who can document decisions and collaborate across time zones
Nice to Have
Show all 6 itemsHide these 6 items in Nice to Have
- Experience building infrastructure for machine learning or AI systems
- Familiarity with data processing frameworks (Apache Kafka, Spark, Airflow, or similar)
- Background in performance optimization, caching strategies, or high-throughput systems
- Knowledge of authentication, authorization, and security best practices
- Experience with serverless architectures or event-driven design patterns
- Contributions to open-source projects or a strong portfolio of personal/professional work
Quoted from selected sections of Alignerr's posting. The full posting may state other conditions. Read the full posting
A closer look
More context, when you need it.
Full job descriptionThe original posting, in Alignerr's words
Posted by Alignerr, reproduced here so you can judge the role before clicking. Original posting ↗
Desenvolvedor Back End (Infraestrutura de IA)
About the Role
What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable microservices that handle real-world traffic at scale.
This is a fully remote, flexible contract role open to engineers across Brazil. Whether you're a seasoned engineer looking for meaningful project work or a strong developer ready to apply your skills to AI-adjacent infrastructure, this is your chance to build things that matter.
- Organization: Alignerr - Type: Hourly Contract - Location: Remote - Commitment: 10–40 hours/week
What You'll Do
* Design, develop, and maintain robust back end services, APIs, and data pipelines * Build scalable, high-performance server-side architecture to support AI training and inference workloads * Write clean, well-documented, and testable code following engineering best practices * Integrate with databases, message queues, cloud services, and third-party APIs * Optimize system performance, reliability, and scalability as usage grows * Collaborate asynchronously with distributed teams of engineers, researchers, and product leads * Troubleshoot production issues, conduct code reviews, and contribute to architectural decisions * Work independently on task-based and project-based assignments on your own schedule
Who You Are
* Proficient in one or more back end languages — Python, Go, Java, Node.js, Rust, or similar * Solid understanding of RESTful API design, microservices architecture, and distributed systems * Experienced with relational and/or NoSQL databases (PostgreSQL, MongoDB, Redis, etc.) * Comfortable working with cloud platforms such as AWS, GCP, or Azure * Familiar with version control (Git), CI/CD pipelines, and containerization (Docker, Kubernetes) * Strong problem-solving skills and the ability to debug complex systems independently * Self-motivated, reliable, and effective when working asynchronously without close supervision * Clear communicator who can document decisions and collaborate across time zones
Nice to Have
* Experience building infrastructure for machine learning or AI systems * Familiarity with data processing frameworks (Apache Kafka, Spark, Airflow, or similar) * Background in performance optimization, caching strategies, or high-throughput systems * Knowledge of authentication, authorization, and security best practices * Experience with serverless architectures or event-driven design patterns * Contributions to open-source projects or a strong portfolio of personal/professional work
Why Join Us
* Work on cutting-edge AI infrastructure projects alongside leading research labs * Fully remote and flexible — set your own hours and work from anywhere * Freelance autonomy with access to meaningful, technically challenging work * Build systems at the intersection of software engineering and artificial intelligence * Collaborate with a global network of talented engineers and researchers * Potential for ongoing work and contract extension as new projects launch
Working with AlignerrPay, getting started and work, from Alignerr's own pages
What the platform publishes in general. These are not extra terms confirmed for this particular role.
- Getting paid
- Billed weekly, Monday to Sunday, with approved work paid by the following Friday, according to Labelbox's help center. Payment goes through Stripe Connect or PayPal depending on your location, with one provider per country. intercom.help/labelbox/en/articles/13600616-alignerr-paym..., alignerr.com/process
- Before your first paid task
- Sign up, apply, verify your identity, set up billing and onboard. Some jobs add a Zara AI interview or domain assessments. alignerr.com/process
- How much work
- Time to your first project depends on demand and your skills, and there is no minimum number of hours. alignerr.com/faqs
- Contract
- Independent contractor, under terms with ALIGNERR LLC. alignerr.com/faqs, alignerr.com/privacy
Read on the pages linked above on 24 Sep 2026. Platforms change these terms, so check the linked page before you rely on one.
How does the pay compare?Across Coding & software eval roles, not this role alone
From our own daily reads of every open listing on the platforms we follow, not from Alignerr's posting. How we count.
Pay across the field: Coding & software eval
Across 393 roles in this field with a stated hourly rate in US dollars, on 14 platforms, the middle half pays $65 to $120 an hour at the top of the range, and the median is $95. This role's top rate, $100, is in the middle half. Of the 141 distinct rates we count, 73 are lower and 54 are higher.
| Platform | Roles | Top of range, per hour |
|---|---|---|
| Alignerr (this platform) | 136 | $50 to $400 · median $100 |
| micro1 | 46 | $35 to $350 · median $110 |
| Handshake AI | 43 | $47 to $125 · median $80 |
| Meridial (Invisible) | 34 | $22 to $150 · median $60 |
| Mercor | 33 | $60 to $200 · median $105 |
Sources and listing historyWhere this information comes from
This listing's history
- First seen here on 27 Aug 2026, and still on Alignerr's list when we last read it on 13 Oct 2026.
- The listed pay has not changed since then.
- Posted by Alignerr
- First seen by AIPayList
- Last seen live
- Listing ID
- 2106879b-376f-436b-a30e-e0be6445b9e9
Pay as the source states it: “$20-100/hr”.
Platforms sometimes change a rate after posting. Every listing here is re-read at least once a day and corrected when its source moves, so a difference you see on the platform is usually a change made since the last read. How freshness works.
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