Senior Python Developer - Code Migration Expert

Intellectsoft is looking for a Senior Python Developer to join a remote team supporting a BaFin-regulated fintech client based in Germany. The client specializes in Crypto-as-a-Service infrastructure for institutional partners. This role is open to candidates located in Georgia and offers the chance to work fully remotely. What you will do Develop scalable backend systems using Python to support financial services Create and maintain integrations that bridge traditional finance with Web3 technologies Operate within a high-security environment shaped by regulatory requirements Who this role suits This position fits experienced Python developers who are comfortable tackling complex backend projects and financial integrations, particularly in regulated environments. Intellectsoft works with clients across North America, Latin America, the Nordics, the UK, and Europe, delivering digital solutions in sectors such as fintech, healthcare, education technology, construction, and hospitality. Clients include startups as well as Fortune 500 companies like Jaguar Motors, Universal Pictures, and Harley-Davidson. More information can be found at www.intellectsoft.net.

Please submit your CV in English and indicate your English proficiency level. This Senior Python Systems Developer role is a project-based, freelance opportunity with Toloka AI (via Mindrift), supporting top technology companies in testing and improving AI systems. The position is remote and based in Stuttgart, Baden-Württemberg, Germany, but open to candidates working from anywhere. Role overview This position centers on building and maintaining functional black box tests for large and diverse codebases. Responsibilities include managing Docker environments, using language models to interpret code in C, Rust, and Go, and translating migration requirements into actionable development tasks. Tools such as Roo Code and Claude Code are used to streamline workflows and automate repetitive tasks. What you will do Design and implement functional black box tests for projects written in multiple programming languages. Set up and manage Docker environments to ensure reproducible builds and consistent testing across platforms. Monitor code coverage and automate scoring to meet industry standards. Apply large language models (LLMs) like Roo Code and Claude to accelerate development, automate routine work, and enhance code quality. Requirements Minimum 5 years of experience as a Software Engineer, with a strong focus on Python. Deep knowledge of pytest, including fixtures, session-scoped testing, timeouts, and black box functional test design for CLI tools. Advanced experience with Docker: writing reproducible Dockerfiles, managing user contexts, and securing workspaces. Expertise in Linux and Bash scripting, including debugging within containers. Familiarity with modern Python tooling (uv, pyproject.toml, packaging). Ability to read and understand code in C, C++, Rust, or Go with the help of LLMs. Hands-on experience using LLMs (Claude Code, Roo Code, Cursor) to speed up development and generate tests. English proficiency at B2 level or higher. Preferred qualifications Background with agent evaluation platforms and MCP CLI. Key tools & technologies Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go (for code reading), Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov. Benefits & work arrangement Freelance, project-based contract through Mindrift (powered by Toloka AI). Fully remote position with flexible scheduling. Work 20-30 hours per week and set your own hours. Compensation varies by project and experience, with potential earnings up to $50 per hour for this engagement.

Develop and design high-performance, low-latency applications ensuring high availability.Engage in all stages of the software development lifecycle.Create well-structured, testable, and efficient code.Verify compliance of designs with specifications.Prepare and release software components effectively.Drive continuous improvement through exploring new technologies and presenting architectural insights.

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.

ABOUT THE COMPANYLITIT is a pioneering joint venture between NTT DATA and Reiz Tech, recognized for its extensive industry expertise and dedication to technological innovation. Our mission is to provide top-notch IT solutions specifically tailored for the DACH region. By merging the precision of German engineering, the diligence of Japanese work ethics, and the creativity of Lithuanian talent, we offer unparalleled service and support to our clients.ABOUT THE CLIENTOur client is a distinguished leader in the automotive sector, driven by a commitment to innovation, quality, and sustainability. With a strong focus on advanced technology and digital transformation, they are at the forefront of crafting state-of-the-art solutions that enhance the driving experience. The company promotes a collaborative and dynamic work environment that values creativity and forward-thinking ideas, presenting an exciting opportunity to be part of a team that is shaping the future of mobility.ABOUT THE ROLEWe are actively seeking talented Python Developers to join our team in building and maintaining scalable, cloud-based backend services. You will engage in developing modern microservice architectures utilizing Python and FastAPI, deploying applications to Azure, and managing them within Kubernetes environments.Your primary responsibilities will include creating reliable APIs, integrating various data sources, and contributing to AI-enabled services. Experience with Retrieval-Augmented Generation (RAG), Machine Learning, or AI systems is highly valued. Our team prioritizes clean code, automation, system reliability, and continuous enhancement of a publicly accessible platform.

Distribusion Technologies stands at the forefront of the global ground transportation marketplace, offering travelers unparalleled access to diverse transport options online, from seamless search functionalities to straightforward ticket purchasing. Our state-of-the-art B2B technology platform bridges the gap between bus, rail, and ferry operators in over 70 countries and leading online retailers such as Google Maps and Booking.com.As we continue to redefine the travel landscape, we are expanding the largest global network of transportation providers and retailers. After experiencing a remarkable 10x growth last year, we are recognized as one of the fastest-growing startups in the travel sector. With the support of four prominent venture capital firms (TQ Ventures, Creandum, Northzone, and Lightrock) and our recent successful $80 million Series C funding round, we are poised for significant advancements.We are currently seeking a dynamic Senior Python Software Engineer to join our Portal Team. In this pivotal role, you will play a crucial part in developing our core B2B product, which connects global carriers, retailers, and travel partners to Distribusion’s robust infrastructure. The Portal serves as the central interface within our ecosystem, facilitating high-performance booking and analytics tools, as well as identity management and operational dashboards. You will navigate multiple domains, influence architectural decisions, integrate complex workflows, and collaborate with teams across Data, Platform, and E-commerce to create a seamless and scalable user experience. We are on the lookout for a developer who thrives on ownership, enjoys tackling complex challenges, and is passionate about building the foundation of how the world books ground transportation.

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.

SmartRecruiters is seeking a Senior Python Software Engineer to join its Engineering team in Germany. This position centers on designing and building software that advances company objectives. The role involves tackling complex problems and working closely with other engineers. Key responsibilities Design and develop software solutions using Python Collaborate with team members to resolve technical challenges Share ideas to enhance products and internal processes What we’re looking for Deep experience with Python programming Ability to work through complex technical issues Interest in working collaboratively to achieve team goals

Join our dynamic team at dev2 as a Senior Python Software Engineer. In this pivotal role, you will leverage your expertise in Python to develop innovative software solutions that meet the evolving needs of our clients. Your contributions will directly impact project outcomes and enhance our technology stack.We are looking for a passionate individual who thrives in a fast-paced environment, possesses strong problem-solving skills, and is eager to collaborate with cross-functional teams to deliver high-quality software.

jobgether is looking for a Senior Full-Stack Engineer based in Germany with strong experience in Python and React. This role centers on building and improving software that supports the company’s platform. Role overview This position involves developing features from initial idea through to deployment. Collaboration with colleagues from different teams is a key part of the job, with a shared focus on delivering reliable code and a smooth user experience. What you will do Work with Python and React to create and maintain platform features Contribute to project planning, development, and release Collaborate with cross-functional teams to meet project goals Help ensure code quality and a positive experience for users

Join Alten as a Backend Software Developer specializing in Python! We are looking for passionate individuals who thrive in a dynamic environment and are eager to contribute to innovative projects. You will be responsible for developing robust backend solutions, collaborating with cross-functional teams, and ensuring high performance and responsiveness of applications.

OUR VISIONAt NavVis, we empower individuals through our cutting-edge technology that seamlessly connects the physical and digital realms. Our solutions not only capture reality but also inspire creativity, productivity, and innovation, laying down a digital foundation that transforms the world.We provide tools that allow our users to visualize their environment as it is while also paving the way for a better future. Whether physical or digital, NavVis is committed to enabling people to shape a reality that enhances their lives.THE OPPORTUNITYJoin our Mapping and Perception Team and engage in the development of software and components for our state-of-the-art mobile indoor mapping system, utilized by organizations in over 25 countries globally.In this role, you will contribute to the creation of software solutions that map entire buildings and generate realistic 3D representations, including maps, point clouds, and panoramic images, leveraging the latest advancements in robotics technology.We are a diverse, international team, and if you are passionate about software engineering and eager to create transformative indoor digital experiences, this is the perfect opportunity for you!HOW YOU WILL MAKE AN IMPACTYou will design and architect the core software stack that powers our innovative mapping solutions.Collaborate with cross-functional teams to enhance product features and functionality.Implement best practices in software development and contribute to the overall engineering culture.

Join Distribusion as a Senior Python Software Engineer and be part of a pioneering force in the global ground transportation marketplace. Our innovative platform seamlessly connects travelers with bus, rail, and ferry operators across over 70 countries, partnering with major online retailers like Google Maps and Booking.com.As one of the fastest-growing startups in the travel sector, we have expanded tenfold in the past year, backed by leading venture capital firms including TQ Ventures, Creandum, Northzone, and Lightrock. Following our recent $80 million Series C funding, we are poised for further growth and innovation.In this vital role within our Portal Team, you will drive the development of our core B2B product, which connects global carriers, retailers, and travel partners to Distribusion’s infrastructure. The Portal serves as the central interface of our ecosystem, offering high-performance booking and analytics tools, identity management, and operational dashboards. You will collaborate with cross-functional teams to make critical architectural decisions, integrate complex workflows, and ensure a seamless, scalable experience for our users. We are seeking a developer who thrives on ownership, enjoys tackling challenging problems, and is eager to build the backbone of how the world books ground transportation.

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

About ClickHouseListed among the top innovators on the 2025 Forbes Cloud 100 list, ClickHouse is a leading, rapidly expanding private cloud company. With over 3,000 customers and an astonishing annual recurring revenue growth exceeding 250%, ClickHouse is at the forefront of real-time analytics, data warehousing, observability, and AI workloads.Our momentum was recently reinforced by a successful $400 million Series D funding round. In the past three months, renowned clients such as Capital One, Lovable, Decagon, Polymarket, and Airwallex have adopted or expanded their use of our platform. These new clients join a prestigious roster of AI innovators and global brands including Meta, Cursor, Sony, and Tesla.Join us in our mission to revolutionize the way companies leverage data!The Connectors team serves as the vital link between ClickHouse and the vast data ecosystem. We develop and maintain integrations that make ClickHouse accessible to millions of developers, data practitioners, and AI agents worldwide—ranging from high-level data visualization plugins (like Tableau, PowerBI, Superset, Metabase) to connectors for data frameworks (Apache Spark, Flink, Kafka Connect, Fivetran), orchestration platforms, and AI tools.Our work is pivotal in shaping how organizations process massive datasets—enabling real-time analytics platforms to ingest millions of events per second, observability systems to monitor global infrastructure, and increasingly, AI-driven data applications that redefine team collaboration with data. We work closely with the open-source community, our internal teams, and enterprise users to ensure that ClickHouse integrations lead the way in performance, reliability, and developer experience.About the RoleAs a Senior Software Engineer specializing in Python and the Data Ecosystem, you will be a key contributor, responsible for owning and advancing essential components of ClickHouse's data engineering ecosystem. This role exists at the crossroads of high-performance database engineering and enhancing developer experience. You will create tools that empower Data Engineers and Data Scientists to fully leverage ClickHouse's speed and scale within the frameworks they are already familiar with.We are seeking an individual who has direct experience as a Data Engineer or Data Scientist. The landscape for data practitioners is evolving rapidly; databases have progressed beyond mere query targets—they are now integral components of AI-powered workflows, serving as vector stores for RAG pipelines, backends for LLM-powered agents, and real-time feature stores for ML inference. You comprehend these workflows not from an outsider's perspective, but from personal experience within them. Your role is not just to build integrations; you will contribute product-level insights that enhance user experience.

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.

Data Engineer (Python) Company Overview Orcrist Technologies is at the forefront of innovation with the Orcrist Intelligence Platform (OIP), a cutting-edge data intelligence system built on Kubernetes. Our platform is available as a SaaS solution or can be deployed on-premises, including air-gapped setups. We manage both streaming and batch data pipelines that empower search functionalities, machine learning enrichment, and investigative workflows for our mission-critical clientele. Role Summary As a Data Engineer, you will play a pivotal role in quickly validating new data initiatives from inception to deployment, ensuring they are adoptable and scalable. In this innovative environment, you will prototype effective connectors and pipelines, generate performance assessments, and create handoff packages for productization by our Foundation or delivery team. Key Responsibilities Prototype ingestion and connector patterns (batch and streaming) utilizing NiFi, Kafka, Kafka Connect/Streams, and Change Data Capture approaches. Design schemas and data models that are both prototype-grade and easily adoptable, ensuring semantic clarity and a disciplined approach to evolution. Develop incremental lakehouse datasets using Hudi, Iceberg, and Delta patterns, producing outputs for real-world latency and throughput evaluations. Implement data quality and provenance considerations early in the process, incorporating checks, metadata hooks, and operational basics. Containerize and deploy prototypes on Kubernetes, providing minimal runbooks and configurations for seamless adoption. Create adoption artifacts including schemas, reference implementations, technical design notes, and a backlog for integration. Qualifications Minimum of 3 years of experience in data engineering with a proven track record of delivering real-world data pipelines beyond ad-hoc scripts. Proficient in Python and SQL, skilled in building transformations, validation tools, and pipeline integration code. Solid understanding of streaming and Change Data Capture fundamentals, along with experience in the Kafka ecosystem. Familiar with lakehouse architectures and query layers (e.g., Hudi, Iceberg, Delta, Trino, Hive, Postgres) and their role in making datasets accessible. Comfortable working in Kubernetes and container environments and adept at documenting technical decisions clearly. Must be eligible to work in Germany; EU/NATO citizenship is preferred, and export-control screening will apply. Preferred Qualifications Experience with data quality tools such as Great Expectations or metadata/lineage platforms (OpenMetadata, DataHub, Atlas). Experience with on-premises or air-gapped deployments and awareness of governance and policy for regulated environments. Proficiency in German (B1+) and familiarity with OSINT, GEOINT, or multi-INT data structures. What We Offer A modern data stack with real-world constraints: Kafka, NiFi, and more.

Distribusion is the premier global marketplace for ground transportation, providing travelers with effortless online access to a variety of ground transport options from search to ticket purchase. Our state-of-the-art B2B technology platform connects bus, rail, and ferry operators across 70+ countries to major online retailers, including Google Maps and Booking.com.We are redefining the future of travel by constructing the largest global network of transport providers and retailers. Having achieved a remarkable 10x growth in the past year, we are one of the fastest-growing startups in the travel sector. Supported by four prominent venture capital firms (TQ Ventures, Creandum, Northzone, and Lightrock), and following our recent Series C funding round of $80 million, we are poised to expand even further.We are on the lookout for a talented Senior Python Software Engineer to join our Demand Team. This team is crucial to our product, acting as the first touchpoint for end customers. Therefore, delivering a seamless and efficient search experience is vital for driving sales, ensuring customers can swiftly find optimal choices and successfully complete their bookings.Key Responsibilities:Write clean, efficient, and thoroughly documented Python code.Develop and maintain backend services and APIs for web projects.Implement backend solutions for business-critical applications.Debug, test, and optimize applications for enhanced performance and scalability.Ensure system uptime of at least 99.9%.Engage in code reviews and contribute to best practices.Work Environment:Our headquarters is located in Berlin, where the team frequently meets. However, we embrace a remote-first culture, with team members dispersed globally.

Join Nagarro as a Staff Engineer specializing in Python and contribute to innovative projects that shape the future of technology. As part of our dynamic engineering team, you will engage with cutting-edge technologies, collaborate with talented professionals, and drive meaningful change in a fully remote environment.