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Freelance Backend Python Jobs (NOW HIRING)

AI Chopping Block

$100 - $125/hr

Write correct solutions in C++ and Python; * Write realistic wrong solutions (common mistakes) to test against; * Build and harden test cases: generators, edge cases, stress and \"hacking\" tests;

New

Mindrift

WI · On-site

$60 - $80/hr

Write correct solutions in C++ and Python; * Write realistic wrong solutions (common mistakes) to test against; * Build and harden test cases: generators, edge cases, stress and "hacking" tests;

Space44

Engineer / Developer - Freelance (Remote)

You'll be among the first we reach out to when new freelance opportunities go live. Key ... Backend: Java, Node.js, Python, Go, PHP * Frontend: React, Angular, Vue.js, TypeScript, HTML/CSS ...

Space44

Engineer / Developer - Freelance (Remote)

You'll be among the first we reach out to when new freelance opportunities go live. Key ... Backend: Java, Node.js, Python, Go, PHP * Frontend: React, Angular, Vue.js, TypeScript, HTML/CSS ...

The Albert Group

NY · On-site

$80 - $100/hr

... mobile, and backend surfaces using our TypeScript stack * Work with Python where relevant ... freelance contract +/- 2 hours CET (no EOR/agency involved). Contact person Malin Brocker ...

Talanto

$60 - $80/hr

Applicants must not be concurrently engaged in other freelance, part-time, or consulting work. Core ... Basic to intermediate understanding of Node.js or Python for back-end scripting * Solid grasp of ...

New

Solomon Page

$60 - $65/hr

... Java, Python, React, and Node.js. * Build backend services and APIs using Spring, Spring Boot ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...

Investory

Vienna Office

Highcharts Back-End * Ruby on Rails * Apache & MySQL * Redis Data * Advanced SQL skills ... Python, Jupyter notebooks, AI/ML libraries, etc. What we offer * Join a small but growing team that ...

SysMind Tech

Senior OpenStack DevOps Engineer (CA)

$111K - $151K/yr

... Python, Bash, or Go -Fluency with Git, CI/CD pipelines, and automated test frameworks -Strong ... Block storage provisioning, volume snapshots, multi-attach, backend tuning. Nova: Compute resource ...

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Freelance Backend Python information

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How much do freelance backend python jobs pay per year?

As of Sep 8, 2026, the average yearly pay for freelance backend python in the United States is $148,233.00, according to ZipRecruiter salary data. Most workers in this role earn between $145,500.00 and $167,500.00 per year, depending on experience, location, and employer.

What is the difference between Freelance Backend Python vs Backend Developer?

AspectFreelance Backend PythonBackend Developer
CredentialsOften self-taught or with certifications in Python, web development, or related fieldsBachelor's degree in Computer Science or related field, with experience in backend technologies
Work EnvironmentIndependent, remote, project-basedFull-time or part-time, in-office or remote, employed by a company
Industry UsageFreelance platforms, tech startups, consultingTech companies, enterprises, startups
Search & Comparison IntentLooking for freelance opportunities, project-based workSeeking full-time or contract backend roles

Freelance Backend Python professionals typically work independently on project-based tasks, often remotely, and may not require formal degrees but should have strong Python skills. Backend Developers usually work as part of a team within a company, often holding formal education credentials. Both roles involve backend technologies, but their work settings and employment types differ significantly.

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Freelance Backend Python jobs near you
Infographic showing various Freelance Backend Python job openings in the United States as of September 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 50% In-person, and 50% Hybrid job distribution, with an average salary of $148,233 per year, or $71.3 per hour.

Competitive Programming Expert - Freelance AI Trainer

On-site

AI Chopping Block
See more jobs at AI Chopping Blockexternal

$100 - $125/hr

Other

Posted 3 days ago

New

Job description

Please submit your CV in English and indicate your level of English proficiency.

Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems.Participation isproject-based, not permanent employment.

What this opportunity involves

We're building competitive-programming problems and their automatic graders (test cases + checkers) used to train advanced AI coding models. You'll create problems, write both correct and deliberately-wrong solutions, and design the tough test cases that catch subtly-broken code. Your work is what makes the training signal trustworthy.

What you'll do
  • Write original algorithmic problems — clear statement, sound constraints, an intended solution;
  • Write correct solutions in C++ and Python;
  • Write realistic wrong solutions (common mistakes) to test against;
  • Build and harden test cases: generators, edge cases, stress and \"hacking\" tests;
  • Write checkers/interactors (testlib) for problems with more than one valid answer;
  • Confirm the quality bar: correct solutions pass, wrong ones fail, within time limits.
What we look for
  • Strong competitive programming background, shown by a public profile — a Codeforces rating (see levels below), OR an IOI / ICPC / national-olympiad record;
  • Fluent contest C++ (STL, complexity); comfortable writing Python;
  • Can explain why a solution is wrong and build an input that breaks it;
  • Strong written English (C1+).

Levels (by Codeforces rating, or equivalent olympiad achievement):

  • Associate— 1700–2100 (Expert / Candidate Master): easier problems;
  • Expert— 2200–2600 (Master / Grandmaster): harder problems
  • Senior / Reviewer— 2600+ (Int'l Grandmaster) or IOI/ICPC medalist: hardest problems + quality review.
Nice to have
  • IOI / ICPC alumni and top competitive programmers especially encouraged to apply;
  • Experience setting or testing problems for real contests (Codeforces rounds, ICPC, national olympiads, online judges);
  • Testlib experience (checkers, validators, generators);
  • Experience creating data for LLM code benchmarks or similar RL / evaluation datasets.
Project time expectations

For this project, tasks are estimated to require around 10-20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active. Tasks must be submitted by the deadline and meet the listed acceptance criteria to be accepted.

Compensation

Paid per accepted task. Your rate depends on the qualification tier you reach and how efficiently you complete tasks — up to the equivalent of $90/hr. Because payment is per task, a faster pace raises your effective hourly rate.

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