C++ Developer - Internal Tooling & Optimization
Alignerr • Remote • Posted 0 days ago
Education
Any
Type
Pay Rate
$62.5/task
Posted
0d ago
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About this Role
What You'll Do
- Design, build, and optimize high-performance C++ systems supporting AI data pipelines and evaluation workflows
- Develop full-stack tooling and backend services for large-scale data annotation, validation, and quality control
- Profile and refactor existing C++ codebases to eliminate bottlenecks and improve reliability, performance, and safety
- Embed scripting languages within C++ applications to create flexible, extensible internal tools
- Identify edge cases and failure modes in complex data and system behavior — then implement scalable fixes
- Collaborate with research and engineering teams to align tooling with model training and evaluation needs
- Participate in synchronous design reviews to iterate on system architecture and implementation decisions
About the Role
What if your C++ expertise could directly shape the infrastructure that powers the world's most advanced AI systems? We're looking for a Senior C++ Full-Stack Engineer to build and optimize the high-performance tooling, data pipelines, and evaluation systems that leading AI labs depend on every day. This is a fully remote contract role working on real production systems — not toy projects. You'll collaborate with data, research, and engineering teams at the frontier of AI development, tackling genuinely hard systems problems with meaningful impact.
- Organization: Alignerr
- Type: Hourly Contract
- Location: Remote
- Commitment: 20–40 hours/week
Who You Are
- 3–5+ years of professional experience writing production-grade C++
- Strong full-stack developer background with a deep systems programming foundation
- Experienced at embedding scripting languages (Python, Lua, etc.) within C++ applications to build flexible tooling
- Skilled at profiling and optimizing data processing pipelines — you know where the slowdowns hide
- Clear, confident communicator in written and verbal English
- Self-directed and reliable — you can deliver quality work with minimal hand-holding
- Able to commit 20–40 hours per week on a consistent basis
Nice to Have
- Prior experience with data annotation, data quality pipelines, or evaluation systems
- Familiarity with AI/ML workflows, model training infrastructure, or benchmarking pipelines
- Experience with distributed systems, developer tooling, or internal platform engineering
- Background contributing to or reviewing large, long-lived C++ codebases
Why Join Us
- Work directly on cutting-edge AI infrastructure alongside leading research labs
- Fully remote and async-friendly — work from wherever you do your best work
- Freelance autonomy paired with meaningful, technically challenging assignments
- Make a tangible impact on the systems that train and evaluate next-generation AI models
- Potential for ongoing work and contract extension as new projects launch
Requirements
- Fluent proficiency in English (Written & Verbal)
- Reliable high-speed internet connection
- Bachelor's degree or equivalent professional experience
- Demonstrated expertise in Software Engineering
Eligible Languages
Fluent proficiency in English
Compensation Analysis
What if your C++ expertise could directly shape the infrastructure that powers the world's most advanced AI systems? We're looking for a Senior C++ Full-Stack Engineer to build and optimize the high-performance tooling, data pipelines, and evaluation systems that leading AI labs depend on every day. This is a fully remote contract role working on r
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Frequently Asked Questions
What is the assessment actually like?
Notoriously strict. Alignerr uses TestGorilla for role-specific timed tests — a blank coding environment for engineers, rigorous grammar and fact-checking for writers. There is almost no hand-holding. The critical catch: this is essentially a one-shot process. Fail or abandon the assessment, and you are typically locked out of that role permanently with no option to retake.
How quickly can I start earning after I pass?
Not immediately. Even after passing the assessment and completing identity verification (via Persona) and billing setup (via Deel), you may sit in a waiting pool for weeks or months. You only start earning when a project matching your specific skills launches and you are officially assigned. Do not plan around Alignerr income until you are actively on a project.
Is there a community?
Yes — and it is one of Alignerr's genuine strengths. Once assigned to a project, you are added to Slack channels where you can ask questions, get rubric clarifications from admins, and talk to other AI trainers. This is rare in AI training and makes a real difference when guidelines are ambiguous or change mid-project.
What does the work actually look like?
It is practical, hands-on data work. You might be recording short videos, categorizing images, rating text responses, or analyzing data. The tasks are designed to be short and distinct—typically 5-60 minutes per task.
How flexible is the schedule?
Extremely. This is true "log in and work" flexibility. You can usually work for 20 minutes or 4 hours depending on your availability. There are rarely minimum hour requirements, making it ideal for side income.
Is there an interview?
Usually, no. Hiring for these roles is almost entirely based on passing an automated assessment or "qualification" task. If you pass the test, you get access to the work.
What is the barrier to entry?
Alignerr is known for difficult technical assessments. You must pass a timed test in your specific domain (e.g., Python, Physics, or Language) before you are eligible for any paid projects.