Senior Python Engineer

peec is building and improving the backend systems that support its products. As a Senior Python Engineer based in Berlin, this position centers on designing, developing, and maintaining complex backend infrastructure to ensure reliable and high-quality delivery. Role overview This role involves full ownership of backend systems, from initial planning and architecture through to implementation and deployment. The work spans API design, distributed systems, and ongoing performance improvements. What you will do Lead the end-to-end development of backend systems, including scoping, architecture, execution, and delivery. Design and implement scalable APIs and distributed systems that meet high performance standards. Work closely with Product, Frontend, and Design teams to translate product ideas into solid backend solutions. Explore and apply modern backend technologies to improve architecture and the developer experience. Help evolve backend architecture and infrastructure to support fast iteration and growth. Identify areas for system and developer experience improvement, and drive initiatives to address them. Requirements Significant experience with Python and backend development is essential. Strong skills in API design, distributed systems, and collaborating across teams will be important for success in this role.

Join Synthflow AI, a revolutionary no-code platform designed for deploying voice AI agents that transform contact center operations and business process outsourcing (BPO) at scale. We empower mid-market and enterprise companies to efficiently manage routine calls, ultimately saving valuable time and resources for their teams.Our voice AI agents have made a significant impact:Saved over 5 million hours in contact center operationsIncreased call answering rates by 35% compared to non-AI operatorsHandled 45 million calls with an impressive 99.9% uptimeSupported by leading investors such as Accel, Atlantic Labs, and Singular, we are proud to serve over 1,000 customers and drive an industry shift towards advanced and accessible conversational AI.About the Role:We are seeking a Senior Python Engineer to develop robust, production-grade software and backend systems, focusing on databases, scalable APIs, and core engineering principles.Your Key Responsibilities:Design, develop, and maintain our backend infrastructure, ensuring scalability, performance, and reliability.Create and enhance data models and persistence layers with a strong emphasis on PostgreSQL best practices, including schema design, migrations, query optimization, indexing, and transactions.Develop and support enterprise-grade APIs using FastAPI, focusing on versioning, authentication/authorization, and observability.Participate in pair programming to foster code quality and team collaboration.Manage deployments and environments with Kubernetes and GitOps practices (ArgoCD).Conduct code reviews, offering constructive feedback and ensuring adherence to best practices.Contribute to end-to-end product delivery, including occasional front-end feature development when necessary.Qualifications:5+ years of experience as a Python developer, successfully delivering production systems.Proven expertise in building scalable and extensible data infrastructures.Strong familiarity with relational databases, particularly PostgreSQL (performance tuning, migrations, transactions).Experience in developing and maintaining enterprise-grade APIs using FastAPI.Solid understanding of engineering fundamentals and best practices.

About dltHubdltHub is at the forefront of innovation, leveraging the dlt library, a leading open-source Python tool for data loading with approximately 4 million downloads monthly. We are on a mission to develop the next generation of AI-native data tools built upon our robust open-source foundation.Our team is agile and thrives on experimentation, automation, and user-centric AI workflows. Founded by seasoned data scientists and machine learning engineers, we have our roots in Berlin and a burgeoning presence in the United States.We are supported by prominent investors including Bessemer Venture Partners, Foundation Capital, Dig Ventures, and technical pioneers from Hugging Face, Instana, Matillion, and more. Our core values drive us: we communicate with courage, prioritize meaningful projects, automate continuously, maintain high energy, honor our commitments, and achieve success collectively. About the RoleAs we continue to enhance our AI-first data platform, we are seeking a passionate and entrepreneurial software engineer in Berlin. This role offers the opportunity to tackle data platform challenges related to ingestion, storage, performance, reliability, observability, and AI-enhanced developer experiences. If you are driven, eager to collaborate with a motivated team, and prioritize high-quality code and innovative data systems, this position is tailored for you.

Are you ready to take your career to the next level? Join dev2 as a Senior Data Engineer specializing in Python and play a pivotal role in our data-driven projects. You will work closely with cross-functional teams to design and implement scalable data solutions that drive innovation and efficiency.In this role, you will:Design, develop, and maintain data pipelines and ETL processesCollaborate with data scientists and analysts to optimize data storage and retrievalEnsure data quality and integrity through rigorous testing and validationContribute to architectural discussions and guide best practices

Delivery Hero is looking for a Senior Python AI Engineer to focus on logistics, data, and machine learning projects in Berlin. This position centers on developing AI-powered tools that support and improve delivery operations. Role overview This role involves designing and building applications using Python, with a strong emphasis on artificial intelligence and data science. The main goal is to create solutions that make logistics processes more efficient and help raise customer satisfaction. What you will do Develop and maintain AI-driven applications tailored for logistics challenges Apply machine learning techniques to optimize delivery workflows Work closely with teams to identify and solve data-related problems Requirements Extensive experience with Python Background in artificial intelligence, data science, and machine learning Ability to build solutions that improve operational efficiency

Join Our Mission to Transform HealthcareBe part of a dedicated team of innovators at Doctolib as we revolutionize healthcare accessibility!As a member of our tech department, you will play a key role in creating cutting-edge products and features that enhance the lives of healthcare professionals and patients alike. We thrive in an agile environment, collaborating closely with product, design, and business teams.Your Role as a Senior AI EngineerWe are seeking a Senior AI Engineer (Python) to join our Conversational AI (CAI) team within the Practice Efficiency domain.In this position, your primary goal will be to develop and expand our Phone Assistant product, aiming to transform patient access to care and streamline daily operations for practitioners. Leverage state-of-the-art technologies in AI, NLP, and speech recognition to create exceptional user experiences and scale your innovations to millions of users.

We are seeking a highly skilled Senior Data Engineer to join our dynamic team at repriskag in Berlin. In this pivotal role, you will be responsible for designing, building, and maintaining scalable data pipelines that support our data-driven decision-making processes. You will work closely with data scientists, analysts, and other stakeholders to ensure data quality and accessibility.

Hello! At AMBOSS, we are on a mission to revolutionize medical education, and we are seeking a dedicated Software Engineer to join our innovative team!About AMBOSSFounded in 2012, AMBOSS is a forward-thinking learning and clinical decision support platform designed to empower medical professionals worldwide. Our cutting-edge technology transforms the way healthcare providers acquire and implement scientific knowledge, enabling them to offer the best possible care. Our team, known as AMBOSSians, is passionate about supporting clinicians and making their practice easier and more enjoyable.Why Join Us?As a Software Engineer in our ExamPrep Team, you will play a pivotal role in supporting healthcare learners as they prepare for exams. We provide personalized and adaptive Qbank content, predictive analytics, and tailored study recommendations, fostering confidence in approaching their assessments. Your contributions will directly impact the success of current and future medical professionals.Curious about our culture? Check out our video to discover what sets us apart.Your Responsibilities:Explore a diverse and complex product landscape, becoming an expert in both technical aspects and medical education requirements.Enhance personalized learning experiences through the deployment of deep analytical insights.Take ownership of feature development from inception through deployment and monitoring.Create testable prototypes and transition them into robust production systems.Contribute to the strategic vision and roadmap of the team’s product development.Collaborate closely with engineers, product managers, designers, medical editors, and marketing teams.Foster a strong engineering culture by sharing knowledge, practices, and experiences.Participate in team workshops at AMBOSS offices (travel approximately every two months).Your Profile:Proficient in Python with strong backend development expertise.Experience with frontend technologies (React, JavaScript/TypeScript) in a professional setting.Ability to work collaboratively in a team-oriented environment.Enthusiasm for continuous learning and professional development.

Join Veeva Systems, a trailblazer in cloud technology for the life sciences sector, dedicated to delivering therapies to patients swiftly. With an impressive growth trajectory, we surpassed $2 billion in revenue last fiscal year and are poised for even more expansion.Our core values drive us: Integrity, Customer Success, Employee Success, and Agility. In 2021, we made headlines by becoming a public benefit corporation (PBC), committed to balancing the interests of our customers, employees, society, and investors.As a Work Anywhere organization, we empower you to work from home or in the office, ensuring you thrive in your preferred environment.Become part of our mission to revolutionize the life sciences industry, positively impacting our customers, employees, and communities.Role OverviewOpenData Clinical lays the groundwork for advanced clinical operations.The primary obstacle in clinical trials is patient recruitment. Delays in this process can hinder studies and prolong the delivery of life-saving treatments. Our mission is to expedite this critical process.By pinpointing the most effective clinical sites, we facilitate faster drug market entry, with the potential to save at least one life annually by enhancing clinical operations.In this role, you will create the backbone of our data quality engine and pipelines. Your contributions will enable countless curators to manage vast datasets swiftly and accurately, ensuring the life sciences industry possesses the high-quality data essential for speeding up clinical trials and drug development.This position is ideal for an engineer who prioritizes architectural integrity over quick fixes. You will thrive in an engineering-centric culture that values technical excellence and offers genuine autonomy for innovation.

Role overview Taktile creates technology that enables banks and fintechs to automate critical decisions, such as credit and risk assessments, in real time. As a Senior Backend Engineer on Team Atlas, the main focus is on developing and maintaining the data infrastructure that powers Taktile’s feature computation platform. This position holds responsibility for the full lifecycle of core backend systems, from initial design through deployment, and plays a key role in shaping the direction of the product. What you will do Design, build, and maintain backend services using Python on AWS, including Lambda functions, DynamoDB, Aurora, and event-driven pipelines that support live production workloads. AI tools are part of the regular workflow. Address complex technical challenges related to latency, reliability, and scalability in backend systems. Take ownership of systems end to end: architecture, implementation, deployment, monitoring, and incident response are all part of the role. Influence architectural decisions and help determine how systems are built, not just what gets built. Contribute to team growth by conducting code reviews, mentoring peers, and improving development tools and processes. Collaborate closely with Product and Design teams to help define new features and guide product direction. Location This role is based at Taktile’s office in Berlin.

Role overview Taktile supports banks and fintech companies by automating key decisions such as credit checks and risk assessments. The Senior Backend Engineer on Team Decide focuses on building and improving the distributed execution engine that drives customer workflows. This engine forms the foundation of Taktile’s automated decision-making platform. What you will do Design and implement backend systems for distributed workflow execution Take ownership of critical systems throughout their lifecycle, from architecture to deployment Collaborate with a small, dedicated team where each engineer’s perspective directly influences the product Address complex backend problems specific to automated decision-making in financial technology Location This role is based in Taktile’s Berlin office.

Join our dynamic team at scalablegmbh as an AI Software Engineer specializing in Python. In this role, you will leverage your expertise to develop cutting-edge AI solutions that drive innovation and efficiency across various projects.We are looking for a passionate individual who thrives in a collaborative environment and is eager to tackle complex challenges. Your contributions will be pivotal in shaping the future of AI technologies.

About the Role octoenergy is looking for a Fullstack Engineer (m/w/d) with experience in Next.js and Python to join the Berlin team. This position focuses on building and improving our customer portal and the broader ecosystem supporting heat pumps. What You Will Do Develop and maintain features for the customer portal using Next.js and Python. Work on projects that shape how clients interact with our energy solutions. Contribute to products that support more sustainable energy use. Location This role is based in Berlin, Germany.

Technical LeadAbout Orcrist TechnologiesOrcrist Technologies is at the forefront of innovation with the Orcrist Intelligence Platform (OIP), a cutting-edge, Kubernetes-native solution designed to facilitate secure open-source intelligence collection and analysis for defense and public safety sectors.Role OverviewAs a Technical Lead, you will steer the architecture of our data platform. Your responsibilities will include designing and constructing the lakehouse infrastructure (utilizing technologies such as Hudi, Trino, Kafka, NiFi, and PySpark) that underpins all downstream AI and analytics offerings, while also providing mentorship to our team of Data Engineers.ResponsibilitiesTake ownership of the architecture for our data lakehouse—make informed decisions on build-vs-buy, craft technical designs, and direct implementation efforts.Develop production-level Python code for essential data pipelines and infrastructure components (including PySpark, Kafka, and NiFi).Establish engineering standards for code quality, testing, observability, and documentation.Guide and mentor Data Engineers through code reviews, one-on-one sessions, and technical advice.Collaborate with Product teams to transform requirements into scalable technical solutions.Design and implement data governance frameworks focusing on lineage, cataloging, and compliance with government security regulations.QualificationsMinimum of 6 years of experience in data engineering, with at least 2 years in a leadership or architectural capacity.Proficiency in Python (including PySpark and pandas) and SQL, along with a comprehensive understanding of lakehouse architectures and data modeling.Experience with streaming technologies (e.g., Kafka), batch processing frameworks (e.g., Spark), and modern table formats (e.g., Hudi, Iceberg, or Delta).Proven track record in building and maintaining large-scale data platforms in production environments.Eligibility to work in Germany; EU/NATO citizenship preferred for roles involving export control.Preferred QualificationsProficiency in the German language (B1 or higher).Experience in defense or government data environments.Familiarity with graph databases or machine learning infrastructure.BenefitsAccess to a modern technological stack (Hudi, Ozone, PySpark, Trino, Kafka, Kubernetes).Work on mission-driven projects that make a significant impact.Remote-first work culture based in Germany.Opportunities for meetups in Berlin.30 vacation days per year.Budget for equipment and professional development.

Veeva Systems is a mission-driven organization and a leader in cloud solutions for the life sciences sector, empowering companies to expedite the delivery of therapies to patients. As one of the fastest-growing SaaS firms globally, we achieved over $2 billion in revenue last fiscal year, with significant growth opportunities on the horizon.Our core values—Do the Right Thing, Customer Success, Employee Success, and Speed—guide our operations. We are not just another public company; in 2021, we made history by becoming a public benefit corporation (PBC), committed to balancing the interests of our customers, employees, society, and investors.As a Work Anywhere company, we promote flexibility in your work environment, whether at home or in the office, enabling you to excel in the setting that suits you best.Join us in transforming the life sciences industry, dedicated to making a meaningful difference for our customers, employees, and communities.The RoleAt Veeva Link, we are developing an intelligence layer for the Life Sciences, crafting interconnected data applications that accelerate drug development and enhance patient outcomes. Our philosophy centers on the belief that the combination of high-quality data and cutting-edge software yields substantial benefits.Execution is critical to our success. We prioritize speed, precision, and quality in our daily endeavors. Our engineering philosophy emphasizes clear product specifications that lead to detailed technical designs. Utilizing a modern tech stack, we deliver reliable applications and exceptional user experiences.Our initiatives focus on two pivotal areas:Data-Driven InsightsWe create advanced applications that map and analyze global scientific and medical expertise, offering impactful insights and AI-driven intelligence. Our engineers tackle sophisticated data modeling, entity resolution, and advanced machine learning.Intelligent Business Workflows

JetBrains is seeking an AI Lead focused on Python tools. This position centers on advancing AI technologies across the company’s product suite, with the goal of improving both user experience and product capabilities. Role overview The AI Lead will guide the development and integration of AI features into JetBrains products. The role involves direct oversight of AI project initiatives and regular collaboration with teams from various disciplines. Expect to play a key part in shaping technical direction and ensuring that Python-powered solutions continue to set a high standard in the industry. What you will do Oversee AI-focused projects from conception through implementation Work closely with engineers, designers, and product managers to align AI features with product goals Drive innovation by applying Python expertise to create and refine AI solutions Locations This role is open to candidates based in Amsterdam, Belgrade, Berlin, Limassol, London, Madrid, Munich, Paphos, Prague, remote within Germany, Warsaw, and Yerevan.

Join our innovative team at forvismazars as a Werkstudent in Data Analytics and Python. This is a fantastic opportunity for students who are passionate about data analysis and programming. You will work closely with our data analytics team to support various projects, gain hands-on experience, and enhance your technical skills in a dynamic environment.

Join our dynamic Platform tribe at SumUp, where your expertise will help us create an innovative self-service, AI-Ready Data Platform. Our Data Platform team plays a crucial role in supporting our ambitious ventures into Data, AI, and real-time analytics. We are committed to building robust and scalable infrastructure that empowers our global data community.Your ResponsibilitiesDesign and sustain an exceptional data infrastructure that underpins vital processes.Enhance platform self-service capabilities by developing features for ETL and orchestration.Streamline processes to maximize compute resource efficiency and minimize costs.Implement automation solutions to ensure our infrastructure's availability around the clock.Participate in the design and rollout of new services within our platform ecosystem.

Please note that this position is based in Berlin, Germany - relocation support is provided if required. THE BEST WORK OF YOUR CAREER Trade Republic is Europe’s largest savings platform, operating in 18 countries and trusted by over 10 million customers with more than €150 billion in assets. Our ambitious mission is to empower individuals to build wealth through easy, secure, and free access to financial systems. You will have the chance to elevate your career while working alongside exceptional talents and cutting-edge technology to create a positive impact for millions. Our Corporate IT team ensures that Trade Republic’s internal infrastructure operates securely and efficiently, enabling teams across Europe to deliver at scale. As a Senior IT Systems Engineer, you will merge technical expertise with operational leadership, designing, automating, and maintaining the systems that keep our company thriving.

About Gigs Gigs builds a platform that lets technology companies add global mobile connectivity to their products. The goal: make it as easy to offer mobile services as it is to set up payments. Gigs removes telecom complexity for customers ranging from fintech startups launching mobile plans to HR platforms managing work phones. The team includes about 100 people working across the US and Europe, backed by nearly $100 million from investors like Ribbit Capital, Google, and Y Combinator. Gigs brings together engineers, product specialists, and business leaders with backgrounds at Stripe, Airbnb, Shopify, and other top tech companies. The company is growing quickly and tackling both technical and regulatory challenges to make connectivity seamless. Core Values Speed: Work with urgency and treat each week as important for progress. Ownership: Take initiative when problems arise and act with autonomy. Customer Obsession: Focus on customer success as a measure of company success. Ambiguity: Use good judgment and instincts to make decisions, even with incomplete information. First Principles: Question established practices and seek to understand the reasons behind them. Role Overview: Senior IT Systems Engineer The Senior IT Systems Engineer will help ensure that everyone at Gigs has the access, tools, and support needed to work efficiently. This position focuses on building and automating corporate IT infrastructure. The role is hands-on and results-driven, joining as the third member of the Security & IT team. Locations London, Amsterdam, Berlin