Remote Backend Engineer for AI Projects (Contract)
Mercor
- Remote job
About Mercor’s Talent Network Join our Backend Engineer Expert Network to connect with leading AI labs and companies seeking your expertise. This is an open application for future contract opportunities that match your background and interests. Once you complete your profile and pass our AI interview, you’ll be eligible for relevant projects as they become available. We match experts to opportunities on a rolling basis. Projects Experts in our network contribute to: Training and evaluating AI models in Backend Engineering Creating tasks and deliverables based on real-world scenarios Providing domain‑specific feedback to advance frontier AI research Projects vary in scope and duration, with typical commitments ranging from 15-30 hours per week. What We’re Looking For Professional experience in API development & microservices, database architecture & optimization, distributed systems Strong communication skills Ability to work independently in a remote environment How It Works This is not a specific job posting. By applying, you’re joining our Backend Engineer talent network. Apply once: Complete your profile by uploading your resume and confirming your work location. Get verified: We review your credentials and approve qualified experts. Stay connected: When projects need Backend Engineering expertise, we match you to opportunities based on your expertise and project needs. Start working: Be invited to interview for opportunities that align with your schedule and interests. You will earn competitive rates while working remotely on your own schedule. #J-18808-Ljbffr Mercor
- ...Backend Rust Engineer What if your deep expertise in Rust could directly... ...the next generation of AI understands systems-level... ...performance. This is a fully remote, flexible contract role designed for seasoned... ...Work on cutting-edge AI projects alongside leading research...Contract workRemote workProjectHourly payOngoing contractFreelanceWorldwideFlexible hours
- ...Backend Software Engineer Join Clario, part of Thermo Fisher Scientific as a... ...building the next generation of AI-powered solutions for the... ...to lead complex technical projects and mentor other engineers... ...constitute or represent a contract. The Department Head has the...Contract workRemote workProject
- ...Talent Network Join our Backend Engineer Expert Network to connect with leading AI labs and companies... ...application for future contract opportunities that match... ...eligible for relevant projects as they become available... ...work independently in a remote environment How It Works...Contract workRemote jobProject
- ...Backend Python Engineer What if your Python expertise could directly shape... ...the world's most advanced AI systems write and reason... ...software. This is a fully remote, flexible contract role built for senior... ...most technically demanding projects in the field Fully remote...Contract workRemote workProjectHourly payOngoing contractFreelanceFlexible hours
- ...Backend & Tooling Engineer (Rust) What if your Rust expertise could directly... ...powering the next generation of AI models? We're looking for... .... This is a fully remote contract role with meaningful, high... ...meaningful, long-term technical projects Solve genuinely hard...Contract workRemote workProjectHourly payOngoing contractFreelanceFlexible hours
- ...Senior Backend Engineer II Tabby creates financial freedom... ...us build an internal AI agent platform. You... ...shaping a transformative project from the ground up —... ...alongside a world-class remote engineering team... ...~ Full-time B2B contract ~ Fully remote setup...Contract workRemote workProjectFull timeFlexible hours
- ...Lead Backend Engineer - AI Tooling About the Role What if your Python expertise could... ...important models. This is a fully remote contract role with flexible hours - real, high... ...systems used by leading AI labs - not toy projects Fully remote and flexible -...Contract workRemote workProjectHourly payOngoing contractFreelanceFlexible hours
- ...Senior Backend Engineer - AI Product Framingham, MA; Los Angeles, CA; Seattle... ...in B2B SaaS platforms, project management tools, or workflow... ...Compensation & Location Location: Remote-first, with preference for... ...assembly, and large volume contract manufacturing. Our customers...Contract workRemote workProjectPermanent employment
- ...role The Senior Backend Engineer role gives the successful... ...2024 $17 million contract awarded by U.S. Space... ...Trust Network Access, Remote Privileged Access Management... ...ownership of specific project scope and initiatives... ...intelligence (AI) tools to support parts...Contract workRemote workProjectWorldwide
$120k - $150k
...privacy. We are a fully-remote team with monthly... ...for exceptional engineers to define and... ...page. Some selected projects we\'re proud of are... ...Proficiency in backend development using... ...Reporting Systems - Contract 6mo San Francisco... ...with the help of AI. #J-18808-LjbffrContract workRemote workProjectFull timeH1bWork from home$40 per hour
We are looking for a Backend Software Engineer to join our team to train AI models. You will measure the... ...full-time or part-time REMOTE position You’ll be able to choose which projects you want to work on You... ...This is an independent contract position. #coder #J-188...Contract workRemote workProjectHourly payFull timePart time$129.23k
...Fullstack Backend Engineer United States, Remote Agile Six is a people-first, remote-work... ...of Performance for this contract expires on February 16, 20... .... Effectively leverage AI-powered IDEs such Copilot... ...salary mean, even when their project work differs. We post...Contract workRemote workProjectTemporary workFor contractorsWork from homeShift work- ...Lead Backend Engineer — AI Tooling What if your Python expertise could directly shape the infrastructure... ...their models. This is a fully remote contract role working on real production... ...structure and stability of ongoing, project-based engagement Make a real, measurable...Contract workRemote workProjectHourly payFreelanceFlexible hours
$40 per hour
We are looking for a Backend Software Engineer to join our team to train AI models. You will measure the... ...a full-time or part-time REMOTE position You’ll be able to choose which projects you want to work on You can... ...and it is an independent contract position. This role is at...Contract workRemote workProjectHourly payFull timePart time- ...Senior Backend Engineer (Node.js / NestJS) – Greenfield Product Brazil Freelance Contract | 9–12 months Remote from Brazil About the Project Castle Tech GmbH is building a new standalone product... ...using modern tooling and AI-assisted engineering AI-Augmented...Contract workRemote workProjectFor contractorsFreelanceImmediate startFlexible hours
- ...Backend Kotlin Engineer - Mobile Arionkoder is an AI consulting firm helping companies build, embed... ...Own the Integration Contract: Define and evolve the... ...environments, not toy projects, but systems handling millions... ...Time Off ~ A dynamic remote work culture. You can...Contract workRemote workProjectPermanent employmentLocal area
- ...Java Backend Engineering What if the only thing standing between... ...and utilizes AI-driven verification to... ...Developing a "single-contract" FinTech solution that... ...participate in meetings and projects and to coordinate with... ...arrangements, including remote or hybrid options....Contract workRemote workProjectWork at officeLocal areaFlexible hours
- ...Senior Backend Engineer (C#) - AI Data Platform About the Role What if your C# expertise... ...improve their models. This is a fully remote contract role with flexible scheduling - and... ...Potential for ongoing work and contract extension as new projects launch...Contract workRemote workProjectHourly payOngoing contractFreelanceFlexible hours
- ...Project Overview On behalf of our client — a global... ...Senior Software Engineers (Node.js & React.js) to build scalable backend services powering an AI‑driven research tool... ...production‑grade systems. Contract & Working Model... ...Location: Romania — remote or hybrid from Cluj...Contract workRemote workProjectWorldwideFlexible hours
- ...Senior Backend Engineer (C#) - AI Data Platform What if your C# expertise could directly shape... ...models. This is a fully remote, flexible contract role for an experienced engineer who... ...high-impact engineering, not toy projects Fully remote and async-friendly...Contract workRemote workProjectHourly payOngoing contractFull timeFreelanceFlexible hours
- ...Staff Backend Engineer - Application Core Services, Stacks... ...after a customer signs a contract, integrating with cloud... ...As a company we are remote-first and global, we embrace... ...Config Reconciliation project Manage rollout... ...productivity. You can use modern AI coding assistants as...Contract workRemote workProjectWork experience placementImmediate start
- ...Join Our Team as an AI-native Staff Backend Engineer! Join one of our cross-functional... ..., or Platforms, working remotely from Portugal. Are you... ...of adjusting to changing project requirements, roles, and backend... ...API design, RESTful contracts, database schema, and CI/CD...Contract workRemote workProjectPermanent employmentWork at officeFlexible hours
$8 - $65 per hour
Backend Engineering Specialist - Freelance AI Trainer Project United States of America Are you an experienced Backend Engineer eager to shape the future... ...Specialist - AI Trainer Employment type: Contract Workplace type: Remote Seniority level: Mid-Senior #J-18808-Ljbffr...Contract workRemote workProjectHourly payFor contractorsFreelanceWorldwide$119.05k - $160k
...Core Backend Engineer At Basis, we empower agencies and brands... ...and Canada, including remote, hybrid, or on-site at... ...per day and uses AI and machine learning across... ...(unit, integration, contract, end-to-end) so teams... .... Lead platform projects across the stack — release...Contract workRemote workProjectFlexible hours- ...Thursday, April 23, 2026 City Remote Country United States... ...service delivery. Recent contract awards in cybersecurity and operational... ...development programs or projects. ~3 years of experience... ...machine learning technologies or AI capabilities. #techjobs #clearance...Contract workRemote workProjectMinimum wageFull timeTemporary workWork experience placement
$90k - $130k
...environment, delivering complex backend systems that power... ...while maintaining high engineering standards. This is a... ...range) Fully remote work across the Americas... ...banking transformation projects Strong emphasis on learning... ...works: We use an AI-powered matching process...Contract workRemote jobProjectFlexible hours- ...Backend Developer - AI Data Services What if your C# expertise could directly... ...a Senior C# Full-Stack Engineer to build and optimize the... .... This is a fully remote contract role with meaningful, high... ...AI research labs — not toy projects Fully remote and async-...Contract workRemote workProjectHourly payOngoing contractFreelance
- ...transparency, trading engine speed, deep liquidity,... ...enhance DApps and smart contracts to support a seamless client... .... Optimize backend services for scalability... ...Familiar with mainstream AI tools like claude code... ...Tackle unique, fast-paced projects with autonomy in an innovative...Contract workRemote workProjectWork from homeOverseas
$62k - $141k
...The Opportunity As a Backend and Platform Application Engineer, you’ll develop... ...experience, as well as contract‑specific... ...requirements. The projected compensation range... ...fraud. Candidate AI Usage Policy AI is... ...during meetings. Remote: If this position is...Contract workRemote workProjectFull timePart timeWork at officeLocal area- ...a Senior Software Engineer to design and develop... ...API services and backend systems that power... ...integration, and contract testing... ...Familiarity with AI-powered development... ...with ability to own projects from conception to... ...operational excellence Remote-first culture with...Contract workRemote workProject
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