anyone-ai is looking for a Full-Stack Developer - AI Trainer based in Romania. Role overview This position blends hands-on full-stack development with the challenge of building AI training systems. The work centers on applying software engineering skills to support and improve artificial intelligence technologies. Contributions here help shape how AI learns and adapts.

Job Title: Full-Stack Developer (AI-Focused)Location: Remote (Open to: Czech Republic, Poland, Slovakia, Romania)Schedule: Full-Time, Monday - Friday, 9 AM - 5 PM EST (Flexible)Salary Range: $1,800 – $3,500 USD per month ($11 – $22 USD/hour)Join an innovative AI-driven veterinary care platform that supports over 20,000 clinics in more than 100 countries. Our proprietary AI platform, Marcia, operates across six integrated portals, facilitating millions of users and handling tens of millions of concurrent sessions.This position transcends traditional engineering roles; we prioritize AI-first methodologies, encouraging developers to adopt automated, intelligent workflows that enable rapid, smart scaling.Role OverviewWe are on the hunt for a Full-Stack Developer with strong technical skills and extensive experience in AI-assisted development workflows. Your expertise will be crucial in constructing and expanding a high-performance, globally distributed platform.Familiarity with tools such as Claude Code and Cursor, the ability to orchestrate sub-agents, and leveraging AI throughout the development lifecycle are essential. This role demands a systems thinker who can optimize performance and create infrastructure capable of scaling under significant loads.ResponsibilitiesAI-Assisted DevelopmentUtilize AI tools (Claude Code, Cursor) as core development environmentsDesign and manage agentic workflows and sub-agentsEmploy AI to expedite development, testing, and debugging processesFull-Stack DevelopmentDevelop and sustain scalable front-end and back-end systemsContribute to multiple portals (Consumer, Clinic, Enterprise, Platform, Referral, Admin)Ensure code quality through clean, maintainable practicesPerformance & ScalabilityEnhance database queries and overall system performanceDesign and manage caching layers and connection poolsCreate systems that can support millions of concurrent usersCode Quality & SecurityEnsure all code passes through automated review pipelines (5+ bots) before human scrutinyAchieve SonarCloud quality gates on initial pushAdhere to strict security best practices and hygieneSystem DesignArchitect distributed systems for global scalabilityGuarantee reliability, fault tolerance, and high availabilityCollaborate on infrastructure and backend architecture decisionsRequirementsDemonstrated experience as a Full-Stack Developer in high-scale environmentsSolid proficiency in both front-end and back-end developmentHands-on experience with AI-assisted coding tools

Join a UK-based financial services and investment banking group as part of a cross-functional team at nix. This team builds and maintains an AI-powered document processing and automation platform that supports multiple business units. The platform manages large-scale data flows, automates complex workflows, and integrates with internal systems to enhance the bank’s digital operations. Role overview This Senior Full-Stack Python Engineer position is based in Romania. The focus is on designing and developing scalable APIs, microservices, and user interfaces at the core of the AI-enhanced platform. The work spans document automation and operational dashboard features, with an emphasis on both backend and front-end development. What you will do Build and maintain backend services using Python Develop front-end or full-stack features with TypeScript, using frameworks such as React or Next.js Create and enhance APIs and microservices for document processing and workflow automation Develop UI components for dashboards and internal workflow tools Collaborate with product, architecture, GenAI, and platform engineering teams Deploy and operate systems in cloud environments, with a preference for Google Cloud Requirements Extensive experience in backend engineering with Python Strong skills in front-end or full-stack development using TypeScript (React, Next.js, or similar frameworks) Proven background in building production-grade APIs and microservices Experience developing user interfaces and dashboards Hands-on experience designing, building, and deploying systems in cloud infrastructure (Google Cloud experience is a plus) Ability to work effectively with cross-functional teams in a collaborative setting

N-iX is a leading global software development company, established in 2002, bringing together over 2,400 skilled tech experts across more than 40 countries. We specialize in delivering cutting-edge technology solutions in areas such as cloud computing, data analytics, artificial intelligence, embedded software, and Internet of Things (IoT), serving industry leaders and Fortune 500 companies worldwide. Join us in creating transformative technology that makes a significant impact on businesses and individuals globally.Our client, a prominent UK-based financial services and investment banking firm, is developing an AI-driven document processing and automation platform that enhances efficiency across various sectors within the banking group. This platform harnesses the power of modern cloud and AI technologies to revolutionize outdated workflows, improve data quality, and expedite digital decision-making.Position Overview:We are seeking a Tech Lead Full Stack Engineer with extensive hands-on engineering experience to lead agile software development teams. The ideal candidate will be responsible for defining and executing the technical strategy for the platform, mentoring engineers to deliver scalable and secure systems, and actively participating in architectural decisions and solution design.This role demands a combination of deep technical expertise and strong leadership skills, particularly in environments utilizing Google Cloud, microservices, APIs, Python, and data-intensive processing.The Tech Lead will collaborate closely with product, architecture, data science, and engineering teams to ensure high-quality deliverables that align with business objectives.Join our team and enjoy exciting bonuses! We are offering a Welcome Bonus of $3,000 USD for new hires. Furthermore, if you refer a friend who is successfully hired, you will receive a Referral Bonus of $2,000 USD!

Location: Remote (Romania) Type: Contract / Part-time Weekly hours: 20 to 40 Compensation: Up to 40 USD per hour Project duration: 2 months, with possible extension Start date: Immediate Role Overview anyone-ai produces high-quality STEM training data for advanced AI models. Their datasets support leading AI labs by improving model reasoning in technical subjects. This contract role calls for a Physics specialist to design and solve advanced problems that push the limits of current AI systems. Each problem must have a single, verifiable answer, paired with a thorough, validated solution. What You Will Do Create complex physics problems for AI model training and evaluation. Ensure each problem is deterministic and has only one correct answer. Write complete, checked solutions and explain the reasoning in clear English. Develop assessments that require deep understanding and multi-step analysis, not just recall. Use Python or field-specific tools to build simulations, models, or computational workflows as needed. Maintain technical accuracy, reproducibility, and clarity in all written outputs. Qualifications Bachelor’s, Master’s, or PhD in Physics or a closely related field. Experience in theoretical, experimental, or computational physics (research or industry). Strong Python skills, including familiarity with scientific libraries like numpy or scipy. Knowledge of modeling, simulation, numerical methods, and multi-step problem solving. Ability to design original, challenging problems reflecting real-world physics scenarios. Excellent attention to detail and technical writing skills in English.

What You Will DoWe are seeking a Principal Full-Stack Engineer who is passionate about building impactful solutions and leading by example. In this role, you will be responsible for writing code, defining architecture, and influencing our product and engineering culture.Are you ready to make a significant contribution? Here’s what you will be doing:• Develop full-stack features including React frontends, backend APIs, data layers, and infrastructure scripts.• Conduct code reviews, mentor junior engineers, and elevate the team's standards.• Lead the establishment of architectural and technical standards without unnecessary bureaucracy.• Collaborate closely with product and design teams to deliver value quickly.• Take ownership of complex initiatives from start to finish, making critical decisions independently.• Optimize for performance, scalability, and reliability without the need for constant meetings.• Troubleshoot production issues and guide incident response effectively.Technical ChallengesThis position goes beyond simple CRUD tasks; you will solve real-world problems such as:• Designing and implementing secure integrations including machine learning prediction engines and third-party APIs with strict authorization and data handling protocols.• Building high-performance user interfaces that maintain speed under heavy data loads.• Creating dashboards that transform complex datasets into clear, actionable insights.• Scaling a multi-tenant SaaS platform and providing on-premises solutions for enterprise clients.• Handling security-sensitive data where accuracy is paramount.Who You AreYou are an engineer with the following qualifications:• At least 8 years of professional experience with strong full-stack capabilities.• Over 4 years of experience using React (Next.js), Nest.js/Express, GraphQL, Docker, and Postgres.• Proficient in system design and architecture concepts such as CQRS, event sourcing, and distributed systems.• Experienced in building scalable, secure, production-grade systems and taking ownership of their lifecycle.• Strong communicator who can articulate complex ideas clearly.

Join our dynamic team at metromakro as a Full Stack Engineer where you will play a crucial role in developing innovative software solutions. You will work with a talented group of professionals, contributing to both front-end and back-end development projects. This is an exciting opportunity to enhance your skills and be part of a forward-thinking company.

N-iX is seeking a Senior Full-Stack Engineer (Spanish-speaking) to enrich our dynamic team.Our client is a leading global fashion retailer, with a presence in over 200 markets through a mix of e-commerce and thousands of physical stores worldwide. They expertly manage the entire fashion value chain—from design and manufacturing to distribution and retail—while emphasizing flexibility, digital integration, and sustainability.Technology is pivotal across all business sectors, including stores, e-commerce, logistics, and supply chain. Engineering teams work in small, autonomous product groups, owning the complete lifecycle of the solutions they create. Engineers are encouraged to grasp the broader business context, collaborate directly with stakeholders and users, and proactively contribute to technical and product decisions.

Join our esteemed client, an award-winning international software company based in Spain, as a Senior Full Stack Laravel Developer. We are seeking a highly skilled and experienced developer to contribute to innovative web and mobile solutions. Our client is celebrated for its creativity and excellence in software development, with a diverse presence across Europe.Key Responsibilities: Designing and structuring web pages based on provided designs. Creating reusable code to enhance development efficiency. Implementing a mobile-first approach in design. Ensuring optimal web design for smartphone users. Monitoring and enhancing performance metrics. Optimizing web pages for speed and scalability. Demonstrating initiative and effectively managing personal workload and time.

Jobgether is looking for a Senior Full Stack Engineer based in Romania. This position centers on designing and building software solutions that move the platform forward. Collaboration with teams across different functions is a key part of the job, ensuring features are delivered smoothly and meet project goals. Role overview This role focuses on both front-end and back-end development. You will help shape new features, refine existing ones, and work closely with colleagues to solve technical challenges. The team values clear communication and a hands-on approach to problem-solving. What you will do Design and develop software for the Jobgether platform Work with other teams to deliver well-integrated solutions Contribute ideas to improve the platform’s performance and user experience Requirements Experience as a full stack engineer Strong interest in technology and software development Comfort working collaboratively with others

Trinetix is seeking a talented Full-Stack Developer to join our innovative team.Your Role:As a Full-Stack Developer at Trinetix, you will play a pivotal role in spearheading new projects with evolving requirements and a high level of autonomy.Design and implement backend services and APIs utilizing .NET (C#).Contribute to frontend solutions as needed, collaborating effectively across the stack.Take charge of technical decisions and solution design.Work in dynamic environments where requirements may evolve over time.Engage closely with stakeholders while maintaining a strong engineering focus.Utilize modern tools, including AI-assisted development technologies, to enhance productivity.Commit to ongoing learning and adaptation to new technologies and project demands.

Qualysoft is seeking a Full-Stack Engineer with strong Java skills to join its Bucharest office. This role offers the chance to work alongside experienced engineers in a company known for over 25 years of software engineering expertise. Qualysoft delivers IT consulting services such as Team Augmentation, Dedicated Teams, and Custom Software Development. Projects often involve building scalable enterprise systems, automation frameworks, and digital transformation platforms for clients in industries like banking, telecom, retail, automotive, and more. What you will do Develop and maintain full-stack solutions, with a focus on Java technologies Contribute to projects that support global clients across various sectors Collaborate with team members in Bucharest and across Qualysoft’s international offices Requirements Experience as a Full-Stack Engineer, with expertise in Java Interest in working on enterprise systems and digital transformation projects Ability to work effectively in a collaborative team environment About Qualysoft Founded in Vienna and active in Romania since 2007, Qualysoft operates in several countries across Europe and Asia. The company partners with major technology providers and applies modern tools in AI, Data & Analytics, Cloud, DevOps, IoT, and Test Automation. The Bucharest office is centrally located and home to part of a 500+ strong engineering team.

At Mobiscroll, we are in search of skilled mid-level developers and above to enhance our product offerings and cater to our expanding clientele. This is a full-time opportunity for a full-stack engineer that can be executed remotely.Each day, we strive to assist our clients globally in creating exceptional calendaring, scheduling, and planning solutions. (And we mean it: Our products are utilized in over 170 countries!)About Us:We are at the forefront of developing next-generation scheduling, planning, and resource management tools. Our diverse clientele includes startups, established businesses, Fortune 100 companies, and governmental organizations. Teams from esteemed companies like AT&T, Disney, NASA, LIBRA BANK, and Swarovski utilize Mobiscroll, alongside smaller teams. Explore our customer reviews to see what our clients say about us.Qualifications:We are looking for candidates with prior software development experience. Rather than focusing on specific years of experience with particular technologies, we value problem solvers who can see the bigger picture. A fundamental understanding of modern web project development is essential, along with familiarity with front-end frameworks and technologies such as Angular, React, and Vue, as well as a grasp of basic web architecture.As our work involves significant written communication, proficiency in English is important.Key Responsibilities:Contribute to our new infrastructure project that processes substantial data and performs heavy lifting to allow our customers to deliver delightful user experiences.Enhance existing products (such as our scheduler suite) while also developing new products.Engage directly with customers to gather feedback on product performance.Participate in product development to create solutions that genuinely assist users.Develop your skills as a programmer, build robust systems, and collaborate with a team passionate about software.Witness the direct impact of your code on our customers.Benefits:Competitive salary package complemented by a generous profit-sharing program paid quarterly.Flexible working hours and the option to work from anywhere.

Join our dynamic team as a Full Stack Software Engineer specializing in AI Training. In this role, you'll work on innovative AI solutions that drive our projects forward. We seek individuals who are passionate about technology and eager to contribute to cutting-edge developments in the field.

Join our dynamic team at Coface as a Full Stack Developer, where you will play a crucial role in building and enhancing web applications that drive our business forward. You will collaborate with cross-functional teams to design, develop, and maintain robust software solutions while ensuring high performance and responsiveness. This is a fantastic opportunity to work in a fast-paced environment and contribute to innovative projects that have a significant impact.

About UsFlosum is a self-sustaining, profitable B2B SaaS company that is pioneering the top Salesforce-native DevSecOps, Data Protection, and Security platform. Our services are utilized by Fortune 500 companies across highly regulated sectors including financial services, healthcare, government, and insurance.We pride ourselves on being a stable, scaling enterprise that has achieved profitability through strategic growth rather than excessive spending on fleeting metrics. As a Salesforce Summit Partner and recipient of the Innovation Award, we have established ourselves among the most prominent players in the enterprise software industry.Our solutions are built entirely on the Salesforce platform, catering to businesses that prioritize uncompromising security, compliance, and reliability.Role OverviewIn light of our ambitious growth trajectory, we are expanding our product offerings, enhancing our platform capabilities, and increasing our delivery speed. We seek experienced Node.js developers to take ownership of significant components of our architecture and deliver production code that our enterprise clients rely on every day.This isn’t a position for staff augmentation. You will collaborate closely with engineering leaders, product managers, and the CEO. Your decisions will carry weight, your insights will be valued, and your expertise will be evident to the customers using our platform.Your ContributionsDevelop high-performance backend services and APIs that drive enterprise-grade SaaS applications.Create scalable and secure Node.js microservices and integrations within the Salesforce ecosystem.Design modern front-end experiences using Vue.js and TypeScript for demanding enterprise users.Implement CI/CD pipeline tooling, automation frameworks, and enhance developer productivity infrastructure.Architect real-time data processing and event-driven systems that manage sensitive enterprise data at scale.

inetum2 seeks a Bilingual Full Stack Developer for its Bucharest office. This position centers on creating and refining digital solutions with colleagues from a range of technical backgrounds. The work supports clients in several industries, offering variety and the chance to collaborate internationally. What you will do Partner with cross-functional teams to deliver technical solutions Design, build, and maintain full stack applications Communicate daily with international clients, using both French and English Requirements Professional fluency in French and English Experience developing full stack applications Strong communication skills and a collaborative approach Location This role is based in Bucharest.

Are you a passionate Full Stack Developer proficient in Java and React? Join us at Generix Group, where we harness technology to enhance supply chain efficiency. As a member of our dynamic team, you will collaborate on innovative projects, contributing to the development of cutting-edge solutions that empower businesses globally.

Jobgether is hiring on behalf of a partner company for a freelance DevOps Engineer (Automation Systems) based in Romania. This position focuses on AI training projects and supports remote work. Role overview This freelance role centers on building, scaling, and maintaining infrastructure for automation workflows in an environment where AI and human teams work together. The work is hands-on, aiming to deliver high availability, strong performance, and reliability across large-scale automated systems. What you will do Design and manage infrastructure for automation systems that support AI training Create scalable solutions to handle high-load scenarios Set up and maintain monitoring to track system health and observability Troubleshoot and resolve issues to keep systems stable and resilient Work closely with both AI-driven agents and human teams to ensure system reliability Continuously improve the performance and dependability of automation workflows Who thrives here This position fits engineers who enjoy tackling complex infrastructure challenges and advancing automation at scale. A background in DevOps, automation, and experience with high-load systems is important. Location and format This is a remote freelance opportunity for candidates located in Romania.