Backend roles for English-speaking candidates working on APIs, services, databases, infrastructure, and distributed systems. This page is filtered to active listings in Hamburg.
A growing health and nutrition supplements company is seeking an Amazon Performance Manager for the UK market. This full-time, fixed-term role can be based in Hamburg, D5fsseldorf or remotely within Germany. The role focuses on managing and optimizing Amazon Advertising campaigns, driving …
Join a dynamic team driving the energy transition by developing and improving machine learning forecasting models for decentralized Energy Management Systems. Support data and ML pipelines, monitor production models, and contribute to autonomous AI workflows that optimize clean energy usage. Ideal for …
PythonMachine LearningTime Series ForecastingSQLData PipelinesCloud Infrastructure (GCP, AWS, Azure)
Join a leading global liner shipping company as a Working Student in the Revenue Management department. Collaborate directly with experts to support pricing strategies, revenue projects, and data analysis to help achieve departmental targets. Flexible working hours accommodate college schedules, with the …
This freelance opportunity offers project-based work designing complex physics problems related to optics and AI system training. Ideal candidates have a degree in physics or related fields and professional experience applying numerical simulations and physics modeling techniques. Tasks include developing original, computationally …
Optical engineeringPhysics problem designNumerical simulationPhysics modelingElectromagnetismThermodynamics
This freelance opportunity involves working on project-based AI tasks related to testing, evaluating, and improving AI systems within the legal domain focused on US law. Contributors generate prompts, evaluate AI solutions, and apply structured assessments to enhance AI reasoning. The role is …
US LawLegal ConsultingAI EvaluationEnglish ProficiencyPrompt EngineeringProblem Solving
Join a fast-growing European e-commerce company based in Hamburg and Berlin, operating at the intersection of fashion and technology. This role involves leading strategic and operational projects, collaborating with management, conducting complex analyses, and developing new business fields within a dynamic scale-up …
This opportunity involves project-based freelance work training AI models to understand and generate human-like text while ensuring accuracy, nuance, and clarity. Suitable candidates have at least 1 year of professional experience in journalism or communications and strong written English skills (C1/C2). The …
English proficiencyJournalismCommunicationsCritical thinkingFact-checkingWriting
We are seeking an experienced Senior DevOps Engineer to join a dynamic team. The role involves collaborating closely with CTOs, engineering, and product teams to develop cutting-edge products. The ideal candidate is agile and passionate about engineering challenges and solutions.
English-speaking Senior Software Engineer, Windows/Desktop Applications - Hamburg, Germany opportunity in Germany. Lead the design, architecture, and development of native Windows desktop applications while enforcing best practices for performance and maintainability. Drive accessibility efforts and collaborate with cross-functional teams to shape the …
Windows App SDKWinUIC#XAMLC++Windows Application Architecture
Join a remote tech company focused on accessible text-to-speech products used by over 50 million people worldwide. This key role leads Android app feature development and improvement, collaborating with design and product teams in a fast-paced, flat organizational structure. Ideal candidates have …
An international maritime company is seeking a Product Manager for Steering Gears to manage the product lifecycle from concept to end-of-life, focusing on aftersales business and service revenue growth. This role acts as a key interface between service and new build divisions, …
A technology company specializing in AI-driven legal data solutions is seeking an Account Executive to develop and manage a qualified sales pipeline targeting mid-market companies and occasionally small accounts. The role involves active outbound prospecting, managing full sales cycles, contributing to sales …
B2B SalesOutbound ProspectingConsultative SellingSales Process DevelopmentCRM SoftwareSales Engagement Tools
A technology-driven company specializing in AI and large-scale data management in the legal sector is seeking a Senior CRM Analyst. The role focuses on developing and executing customer lifecycle strategies to enhance engagement, retention and revenue, using sophisticated marketing automation platforms and …
Seeking freelance English writers to support AI training projects for leading technology firms. Contributors create original, clear, and fact-checked textual content to refine AI reasoning and language generation. This part-time, project-based role involves collaborating with quality assurance teams and adhering to style …
English writingContent creationFact-checkingQuality assurance collaborationAI trainingCritical thinking
We are seeking a Senior Data Engineer to design, develop, and maintain scalable data pipelines and architectures supporting analytics and data-driven decision-making. The role involves collaborating with cross-functional teams to transform raw data into reliable analytical assets using technologies such as Python, …
We are looking for an Analytics Engineer to act as the strategic bridge between data infrastructure and insight generation. You will manage the logical and governance layers, transforming prepared data into semantic assets ready for consumption. Your role is to ensure data …
SQL AdvancedData ModelingPythonAirflow or DagsterGitGoogle Cloud Platform (BigQuery)
A freelance opportunity for experienced data scientists proficient in Python and SQL to work on project-based AI tasks including designing and solving real-world data science problems across multiple industries. Requires expertise in data science tools and methods, strong English skills, and experience …
Join a project-based role focused on building domain-specific consulting training environments for advanced AI models. The role requires 3+ years of consulting experience at leading strategy firms such as McKinsey, BCG, Bain, or equivalent. Responsibilities include designing realistic consulting project scenarios and …
An opportunity for US-qualified legal professionals to participate in project-based roles focused on testing and improving AI systems. Contributors engage in generating prompts, evaluating AI responses, and enhancing AI reasoning aligned to legal and logical standards. This part-time, freelance role involves 10-20 …
US LawLegal PracticeEnglish Proficiency C1/C2AI EvaluationPrompt GenerationStructured Problem Solving
This freelance opportunity involves working on project-based AI tasks for leading tech companies. Contributors design and solve complex data science problems requiring Python and SQL expertise, involving statistical analysis, machine learning, and big data processing. The role demands strong experience in Python …