Freelance Engineer

trigoDebrecen

On-site Contract

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Experience Level

Mid to Senior

Qualifications

Proven experience in engineering projectsStrong problem-solving skillsAbility to work independently and manage multiple tasksExcellent communication skillsRelevant technical qualifications or certifications

About the job

Join our innovative team at trigo as a Freelance Engineer. We are seeking a talented individual who is passionate about technology and engineering solutions. In this role, you will leverage your expertise to contribute to diverse projects that challenge the status quo and push the boundaries of engineering.

About trigo

trigo is a forward-thinking company located in Debrecen, Hungary, dedicated to delivering cutting-edge engineering solutions across various sectors. Join us to be part of a dynamic environment where your skills can make a real impact.

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Search for Freelance Optical Engineer - AI Systems Training

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Freelance Optical Engineer - AI Systems Training

toloka-ai

Part-time|$45/hr - $45/hr|Remote|Remote — Hungary

We invite you to submit your CV in English, along with your English proficiency level.At Mindrift, we specialize in connecting skilled professionals with project-based AI opportunities for top-tier tech corporations, emphasizing the testing, evaluation, and enhancement of AI systems. This role is project-based and does not entail permanent employment.Opportu…

May 2, 2026

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Freelance Optical Engineer and AI Trainer

toloka-ai

Part-time|$45/hr - $45/hr|Remote|Remote — Hungary

This freelance Optical Engineer and AI Trainer position with toloka-ai is fully remote within Hungary. Mindrift connects professionals to project-based AI assignments for leading tech companies. Work is organized on a project-by-project basis and does not constitute permanent employment. Role overview This role centers on testing, evaluating, and improving AI systems. Assignments involve developing and refining complex optical and physics problems that challenge AI models and reflect real-world research scenarios. What you will do Create original optical problems modeled after authentic physics research workflows. Design scenarios that require substantial computational effort, beyond what manual solutions can achieve in days or weeks. Develop problems involving advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics. Base challenges on actual research obstacles or practical issues in optics and physics. Write clear, precise problem statements and provide carefully checked solutions. Requirements Degree in Physics (theoretical, experimental, or computational) or a closely related discipline. Minimum of 2 years of professional experience in applied work, research, or teaching. Experience with numerical simulation methods. Ability to design problems that mirror genuine research workflows in physics. Creative approach to problem design across multiple physics domains. Familiarity with modeling and approximation techniques in physics. Strong written English skills at C1 level or above. Project commitment Active project phases typically require 10–20 hours per week. Actual workload may vary and is not guaranteed, depending on project needs. Compensation Earn up to $45 per hour, depending on expertise and pace. Rates may vary by project based on complexity, scope, and required skills. Other projects on the platform may offer different compensation depending on their specific requirements. Application process Application Qualification assessment Project participation Task completion Payment Please submit your CV in English and include your English proficiency level.

Apr 24, 2026

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Freelance Research Physicist - AI Systems Development

Mindrift

Part-time|$45/hr - $45/hr|Remote|Remote — Hungary

Please submit your CV in English and indicate your English proficiency level. Mindrift connects experienced specialists with contract-based AI projects for top technology companies. The work centers on testing, evaluating, and improving AI systems. This is a freelance role, not a permanent position. Role overview The Freelance Research Physicist focuses on creating and validating advanced physics problems for AI systems. Assignments vary, but typically involve: Designing original optics-related problems that reflect real-world physics research Ensuring problems are computationally demanding and not solvable manually in a short timeframe Developing challenges that require complex reasoning across mechanics, electromagnetism, thermodynamics, and quantum mechanics Basing problems on actual research questions or applications in optics and physics Documenting problem statements clearly and providing validated solutions Requirements Degree in Physics (theoretical, experimental, or computational) or a closely related field Minimum 2 years of professional experience in research, applied roles, or teaching Strong skills in numerical simulation methods Ability to design problems mirroring authentic physics research workflows Creative approach to problem design across multiple physics areas Understanding of physics modeling and approximation techniques Excellent written English at C1 level or higher Workflow process Apply Pass qualifications Join a project Complete tasks Receive payment Time commitment Most tasks require about 10–20 hours per week during active project phases. Workload may vary depending on project needs and is not guaranteed outside of active assignments. Compensation Contributors can earn up to $45 per hour, depending on expertise and pace. Actual rates may vary by project based on scope, complexity, and required skills. Location: Remote , Hungary

Apr 24, 2026

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Pavement Condition Index (PCI) Survey & Annotation Specialist – Freelance AI Training Project

Agency

Contract|$6/hr - $20/hr|On-site|Hungary

Are you a skilled pavement professional or roadway inspector with practical experience in conducting or interpreting Pavement Condition Index (PCI) surveys? Join our innovative project aimed at developing advanced AI systems designed to analyze roadway conditions, interpret inspection imagery, and facilitate infrastructure maintenance planning. Your expertise is crucial for generating high-quality training data to ensure these systems accurately recognize various pavement distress types and condition ratings. In this role, you will concentrate on PCI-related workflows and annotation tasks. Your responsibilities will include reviewing roadway images, inspection records, and AI-generated outputs to assess the accuracy and consistency of pavement distress types, severity levels, and condition evaluations in line with PCI methodology. A key component of your work will involve annotating and validating pavement characteristics and distress patterns, enabling models to better learn to identify issues such as cracking, rutting, spalling, patching, weathering, and other prevalent pavement conditions. This is a freelance position offering flexible hours. If you are passionate about leveraging AI in the field of pavement engineering, we encourage you to apply!

Feb 12, 2026

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Strategy Consultant - AI Training & Evaluation (MBB & Top-Tier Firms)

toloka-ai

Full-time|Remote|Remote — Hungary

Toloka-AI is hiring a Strategy Consultant focused on AI training and evaluation. This remote role is open to candidates based in Hungary and involves working with major consulting firms, including MBB and other top-tier organizations, to help shape their AI strategies. Key responsibilities Collaborate with client teams to design and implement AI strategies that support business objectives. Assess current AI projects, highlighting both strengths and areas that need improvement. Provide clear, practical recommendations to improve AI training processes and overall system performance. Share insights that help organizations expand their use of AI in different industries. Who will succeed This position is well-suited for consultants experienced in high-level strategy and knowledgeable about AI systems and their business uses. Strong analytical skills and the ability to communicate actionable advice to clients are essential. Location This is a remote position for candidates based in Hungary.

Apr 27, 2026

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Hungarian Language Specialist - Freelance AI Trainer

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Contract|$8/hr - $65/hr|Remote|Hungary

Are you a passionate Hungarian language expert ready to influence the evolution of artificial intelligence? As large-scale language models transition from mere chatbots to sophisticated linguistic tools, your contributions are essential in creating high-quality training data that can enhance education, keep up with innovative research, and improve communication for Hungarian speakers globally. Your expertise will play a pivotal role in shaping the next generation of AI. We are seeking Hungarian language specialists who possess an in-depth understanding of Hungarian grammar, syntax, morphology, spelling, phonology, and pragmatics. Your role will involve challenging advanced language models on various topics, including verb conjugation, vowel harmony, case systems, sentence structure, formal and informal speech, regional dialects, and the intricacies of the Hungarian writing system. You will meticulously document every failure mode to strengthen model reasoning. On any given day, you will engage with the language model in various scenarios, verify factual accuracy and logical coherence, capture reproducible error traces, and propose enhancements to our prompt engineering and evaluation metrics. A master's degree or PhD in Hungarian language, linguistics, or a closely related field is preferred. Experience with peer-reviewed publications, teaching, or hands-on linguistic analysis projects will signal a strong fit. Clear and metacognitive communication skills are essential as you’ll be expected to articulate your thought process transparently. Are you ready to leverage your Hungarian language proficiency to build the knowledge base for future AI? Apply today to start training an AI model that will educate the world!

Feb 12, 2026

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Freelance AI Trainer - Legal Advisor (US Bar Admitted)

Mindrift

Part-time|$53/hr - $53/hr|Remote|Remote — Hungary

Please submit your CV in English and include your English proficiency level. Mindrift offers project-based AI work for professionals, connecting legal experts with leading technology companies. This contract role centers on supporting AI development, with tasks that shift based on client priorities. The position is remote and based in Hungary. Role overview This freelance AI Trainer – Legal Advisor position involves collaborating on projects that enhance AI legal reasoning. The work is not permanent and adapts to the needs of each assignment. Main responsibilities Create prompts to test AI’s understanding of legal concepts and boundaries Assess AI-generated legal responses for accuracy, logic, and adherence to legal standards Edit and refine outputs to ensure alignment with established US legal principles Use structured scoring to evaluate multi-step legal problem-solving by AI systems Requirements Law degree relevant to US law (Bachelor, J.D., LLM, or FLLM) Minimum 2 years of legal practice within the US jurisdiction Excellent written English at C1 or C2 level Reliable internet connection Who this suits This contract fits legal consultants or attorneys with US law experience seeking flexible, part-time work on a non-permanent basis. Application process Apply Complete qualification steps Join a project Work on assigned tasks Receive payment Project commitment Active phases typically require 10–20 hours per week. Workload may vary and is not guaranteed outside of active project periods. Compensation Earn up to $53 per hour on this project, depending on contribution and pace. Rates for other projects may differ based on scope and expertise required.

Apr 24, 2026

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Senior Consultant for Freelance AI Projects (MBB & Top-Tier Firms)

toloka-ai

Contract|Remote|Remote — Hungary

Role overview toloka-ai is looking for a Senior Consultant to contribute on a freelance basis to projects centered on artificial intelligence. This position is tailored for consultants with a background at MBB (McKinsey, BCG, Bain) or other leading consulting firms. Assignments will involve applying strategic and analytical experience to AI-related challenges. Who this role is for Experienced consultants from MBB or other top-tier management consultancies Individuals interested in freelance work with a focus on artificial intelligence projects Location This is a remote role based in Hungary.

Apr 28, 2026

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Freelance Legal Advisor (US Bar Admitted) - AI Project Specialist

toloka-ai

Part-time|$53/hr - $53/hr|Remote|Remote — Hungary

We invite you to submit your CV in English, along with your English proficiency level.At Mindrift, we facilitate connections between specialists and project-based AI opportunities for prominent technology firms, concentrating on the testing, evaluation, and enhancement of AI systems. Please note that participation is strictly project-based, not a permanent employment opportunity.Overview of the OpportunityWhile each project presents distinct tasks, contributors may be involved in: Crafting prompts that challenge AI capabilities; Assessing AI-generated solutions for accuracy, underlying assumptions, and logical consistency; Refining AI reasoning to comply with foundational principles and established standards; Utilizing structured scoring metrics to evaluate complex problem-solving methodologies.Qualifications We SeekThis role is ideal for legal consultants and attorneys experienced in US law who are interested in part-time, non-permanent projects. Ideally, candidates will possess: A law degree (Bachelor, J.D., LLM, FLLM) with a focus on US lawA minimum of 2 years of legal practice within US jurisdictionProficient written English skills (C1/C2 level)A reliable internet connectionProject WorkflowApplication → Qualification Assessment → Project Engagement → Task Completion → CompensationProject Time CommitmentTasks are estimated to require approximately 10 to 20 hours each week during active phases of the project, depending on specific project demands. Please note that this is an estimate and not a guaranteed workload.CompensationParticipants can earn up to $53 per hour, contingent on their level of expertise and contribution pace. Compensation may vary across projects based on their scope, complexity, and required skills.

May 2, 2026

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Freelance Legal Consultant (US Law) - AI Trainer

Mindrift

Part-time|$53/hr - $53/hr|Remote|Remote — Hungary

Please submit your CV in English and indicate your level of English proficiency.Mindrift specializes in connecting skilled professionals with project-based AI opportunities for leading technology firms, emphasizing the testing, evaluation, and enhancement of AI systems. Participation is project-specific and does not constitute permanent employment.Opportunity OverviewWhile each project presents distinct challenges, contributors may engage in tasks such as:Creating prompts to assess AI capabilities;Evaluating AI-generated outputs for accuracy, assumptions, and logical coherence;Refining AI reasoning to align with foundational principles and recognized standards;Employing structured scoring criteria to evaluate multi-step problem-solving processes.Desired QualificationsThis role is well-suited for legal consultants or attorneys with experience in US law who are open to part-time, non-permanent projects. Ideal candidates will possess:A law degree (Bachelor, J.D., LLM, FLLM) relevant to the US context;A minimum of 2 years of legal practice experience within US jurisdiction;Strong written English skills (C1/C2 level);A reliable internet connection.How the Process WorksSubmit an application → Pass qualification assessments → Join a project → Complete assigned tasks → Receive payment.Project Commitment ExpectationsFor this project, participants can expect to dedicate approximately 10-20 hours per week during active phases, contingent on project requirements. Please note that this is an estimate and does not guarantee a specific workload.CompensationContributors can earn up to $53 per hour, contingent on their experience level and contribution pace. Compensation may vary across different projects based on their scope, complexity, and expertise required. Please be aware that other projects on the platform may present varying earning levels based on distinct requirements.

May 1, 2026

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Freelance Engineer

trigo

Contract|On-site|Kecskemét

Join our dynamic team as a Freelance Engineer and leverage your expertise in engineering to contribute to innovative projects. You will work on a variety of tasks that challenge your skills while collaborating with talented professionals.

Apr 9, 2026

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trigo

Contract|On-site|Nyíregyháza

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Apr 9, 2026

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Freelance Engineer

trigo

Contract|On-site|Debrecen

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Apr 9, 2026

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trigo

Contract|On-site|Székesfehérvár

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Apr 9, 2026

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Oct 9, 2025

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Freelance Engineer - Quality Assurance Specialist

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Jan 5, 2026

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Mar 12, 2026

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