July 8, 2026
Senior Python Engineer
Senior • Hybrid
40,000 - 55,000 PLN
Warsaw, Poland
For our client, a leading, high-growth global fintech company – we are looking for an experienced Senior Python Engineer to join a key engineering team responsible for the company’s core data foundation.
The project focuses on building, optimizing, and scaling a cloud-native, high-throughput Data Platform designed to ingest, process, and distribute massive datasets in real-time. This platform serves as the backbone for various downstream analytical systems, requiring extreme reliability, performance, and scalability.
This is a fantastic opportunity for a strong Python generalist who enjoys solving complex distributed system problems, optimizing data flows, and working with modern cloud architectures.
Responsibilities
Backend & Pipeline Development: Design and develop scalable backend services and high-performance data processing pipelines using Python.
Performance Tuning: Identify bottlenecks and optimize system performance, focus on concurrency, throughput, and low-latency execution.
Data Integration & Storage: Build robust integrations with modern cloud-native storage solutions and databases to manage large-scale datasets efficiently.
Collaborative Engineering: Work closely with cross-functional technical teams to understand data requirements and deliver reliable API services and platform features.
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Engineering Excellence: Maintain top-tier coding standards, emphasizing clean code, robust testing (unit/integration), automation, and security.
Requirements
8+ years of professional backend software development experience (with a strong track record in building scalable, production-grade systems).
Deep expertise in Python (advanced OOP, concurrency/multiprocessing, memory management, data structures, and algorithms).
Solid experience with data-centric libraries such as Pandas, NumPy, or similar data processing frameworks.
Experience with large-scale data storage formats (e.g., Parquet, JSON, or column-oriented databases) and relational/NoSQL databases.
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AI-assisted development mindset: Comfortable utilizing AI tools to accelerate delivery, while maintaining strong developer judgment regarding validation, testing, security, and refactoring.
What our client offers:
Hybrid work model in Warsaw (minimum 3 days a week in the office - strictly non-negotiable).
Contract of Employment (UoP) with increased tax-deductible costs (KUP).
Private medical care (including full dental care).
Lunch card to cover your daily meals.
Multisport card.
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The position involves collaboration across teams, CI/CD implementation, cloud-native architecture design, and mentoring junior engineers in a hybrid work environment in Poland. 🗂️ Requirements: Bachelor’s degree in Computer Science, Engineering, or related field, 5+ years of Python development experience, Experience with Django, Flask, or FastAPI, Commercial experience with AWS, Azure, or Google Cloud, Hands-on experience with Docker and Kubernetes, Experience with serverless frameworks, Ability to design RESTful APIs, Experience with MySQL or PostgreSQL, Experience with MongoDB or DynamoDB, Knowledge of Agile methodologies, Experience with Git version control, Experience with unit testing, Experience with CI/CD tools, Strong analytical and problem-solving skills, Effective communication and teamwork skills 📃 Skills: Python, Django, Flask, FastAPI, AWS, Azure, GCP, Docker, Kubernetes, REST, MySQL, PostgreSQL, MongoDB, DynamoDB, Git, Jenkins, GitHub, AzureDevOps, CodePipeline, CI/CD, Agile, Lambda 🏢 Description: We are looking for an experienced Senior Python Engineer with expertise in Cloud technologies to contribute to a strategic project for one of our key clients. As a Senior Engineer, you will create, enhance, and implement scalable, secure solutions utilizing Python and modern cloud platforms. Collaboration with cross-functional teams will be essential to deliver innovative software systems addressing complex business challenges and driving digital transformation. This role follows a hybrid work model, requiring three days per week in-office at one of our locations in Krakow, Wroclaw, Gdansk, Warsaw, Poznan, Katowice, or Lodz. Responsibilities Deliver high-quality software solutions using Python for web applications, APIs, data pipelines, AI/ML models, and automation tools Design and manage cloud-based architectures utilizing platforms like AWS, Azure, or Google Cloud Platform (GCP) Create scalable microservices and serverless applications using cloud-native tools and frameworks Optimize data pipelines and workflows using Python and cloud services such as AWS Lambda, Azure Functions, or GCP Cloud Functions Promote system reliability and scalability utilizing best coding practices, automated testing, and effective monitoring Work with product, operations, and engineering teams to define requirements, refine features, and implement solutions Set up CI/CD pipelines to enhance deployment efficiency in cloud environments Address production issues and improve system performance in cloud setups Keep up to date with Python trends, cloud advancements, and evolving tools Mentor junior team members, perform code reviews, and uphold quality standards across the team Requirements Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience 5+ years of Python development experience, with a focus on libraries such as Django, Flask, or FastAPI Commercial background in cloud platforms such as AWS, Azure, or Google Cloud and hands-on experience with related services Competency in cloud-native technologies, including Docker, Kubernetes, and serverless frameworks Skills in designing RESTful APIs and integrating third-party services Knowledge of database technologies, including relational databases like MySQL/PostgreSQL and non-relational databases like MongoDB/DynamoDB Understanding of software development best practices, Agile methodologies, Git version control, and unit testing Experience with CI/CD tools, including Jenkins, GitHub Actions, Azure DevOps, or AWS CodePipeline Strong analytical and problem-solving abilities for tackling technical challenges Effective communication skills and the ability to collaborate in team settings Nice to have Background in AI or ML technologies We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.
Technology
EPAM Systems
Senior Python Engineer
Senior
Hybrid
Poznan, Poland
🏢 Summary: Senior Python Engineer role focused on building scalable cloud-native solutions, APIs, data pipelines, and automation systems using Python and major cloud platforms. The position involves designing microservices, implementing CI/CD pipelines, optimizing cloud architectures, and collaborating with cross-functional teams in a hybrid work model. 🗂️ Requirements: Bachelor’s degree in Computer Science, Engineering, or related field, 5+ years of Python development experience, Experience with Django, Flask, or FastAPI, Commercial experience with AWS, Azure, or Google Cloud, Hands-on experience with Docker and Kubernetes, Experience with serverless frameworks, Ability to design RESTful APIs, Knowledge of MySQL, PostgreSQL, MongoDB, or DynamoDB, Understanding of Agile methodologies and Git, Experience with unit testing, Experience with CI/CD tools, Strong analytical and problem-solving skills, Ability to collaborate in team environments 📃 Skills: Python, Django, Flask, FastAPI, AWS, Azure, GCP, Docker, Kubernetes, Lambda, AzureFunctions, CloudFunctions, REST, MySQL, PostgreSQL, MongoDB, DynamoDB, Git, Jenkins, GitHubActions, AzureDevOps, CodePipeline, CI/CD, Agile 🏢 Description: We are looking for an experienced Senior Python Engineer with expertise in Cloud technologies to contribute to a strategic project for one of our key clients. As a Senior Engineer, you will create, enhance, and implement scalable, secure solutions utilizing Python and modern cloud platforms. Collaboration with cross-functional teams will be essential to deliver innovative software systems addressing complex business challenges and driving digital transformation. This role follows a hybrid work model, requiring three days per week in-office at one of our locations in Krakow, Wroclaw, Gdansk, Warsaw, Poznan, Katowice, or Lodz. Responsibilities Deliver high-quality software solutions using Python for web applications, APIs, data pipelines, AI/ML models, and automation tools Design and manage cloud-based architectures utilizing platforms like AWS, Azure, or Google Cloud Platform (GCP) Create scalable microservices and serverless applications using cloud-native tools and frameworks Optimize data pipelines and workflows using Python and cloud services such as AWS Lambda, Azure Functions, or GCP Cloud Functions Promote system reliability and scalability utilizing best coding practices, automated testing, and effective monitoring Work with product, operations, and engineering teams to define requirements, refine features, and implement solutions Set up CI/CD pipelines to enhance deployment efficiency in cloud environments Address production issues and improve system performance in cloud setups Keep up to date with Python trends, cloud advancements, and evolving tools Mentor junior team members, perform code reviews, and uphold quality standards across the team Requirements Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience 5+ years of Python development experience, with a focus on libraries such as Django, Flask, or FastAPI Commercial background in cloud platforms such as AWS, Azure, or Google Cloud and hands-on experience with related services Competency in cloud-native technologies, including Docker, Kubernetes, and serverless frameworks Skills in designing RESTful APIs and integrating third-party services Knowledge of database technologies, including relational databases like MySQL/PostgreSQL and non-relational databases like MongoDB/DynamoDB Understanding of software development best practices, Agile methodologies, Git version control, and unit testing Experience with CI/CD tools, including Jenkins, GitHub Actions, Azure DevOps, or AWS CodePipeline Strong analytical and problem-solving abilities for tackling technical challenges Effective communication skills and the ability to collaborate in team settings Nice to have Background in AI or ML technologies We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.
Technology
DevsData LLC
Senior Backend Engineer (Python)
Senior
Remote
Warsaw, Poland
8,000 - 12,000 USD/mo
🏢 Summary: Senior Backend Python Engineer role focused on building scalable AI-powered enterprise software and owning backend services from architecture to production. The position involves backend development, distributed systems, cloud infrastructure, and technical leadership in a hybrid B2B environment. Candidates will collaborate across teams to deliver secure, high-performance applications using modern engineering and AI-assisted workflows. 🗂️ Requirements: 6+ years building production-grade backend systems, Strong Python experience, Experience with distributed systems, Knowledge of concurrency and asynchronous processing, Experience designing REST APIs, Experience with scalable architectures, Hands-on cloud platform experience, Database design and performance optimization knowledge, Experience building secure enterprise applications, Ability to own projects from design to deployment, Cross-functional collaboration skills, Strong troubleshooting and problem-solving skills, Excellent English communication skills, Experience with AI tooling and automation workflows 📃 Skills: Python, REST, AWS, GCP, Azure, SQL, TypeScript, LLM, AI, Monitoring, Logging, Observability, Automation 🏢 Description: Senior Backend Engineer (Python) 📍 Warsaw, Poland (Hybrid) ☑️ Full-time 🕦 B2B Contract 💰 $8.000 - $12.000/month We are hiring a Senior Backend Python Engineer for an innovative technology company building AI-powered enterprise software used by organizations worldwide. This role is ideal for an experienced backend engineer who enjoys designing scalable production systems, solving complex technical challenges, and taking ownership of critical backend services from architecture through production. You'll work closely with product, frontend, and platform engineers to build reliable, secure, and high-performance applications while leveraging modern AI-assisted engineering practices . As a Senior Backend Python Engineer you will provide backend development, system design, cloud infrastructure, and technical leadership in a fast-paced engineering environment where ownership and continuous improvement are highly valued. Requirements 6+ years of experience building and maintaining production-grade backend systems Strong hands-on experience with Python and modern backend development practices Strong understanding of distributed systems, concurrency, asynchronous processing, and scalable architectures Experience designing and developing REST APIs and backend services Hands-on experience with cloud platforms such as AWS, GCP, or Azure Strong knowledge of database design, performance optimization, and high-throughput applications Experience building secure, reliable enterprise applications with a security-first mindset Ability to own projects from technical design through deployment and production support Experience working closely with cross-functional engineering and product teams Strong troubleshooting, problem-solving, and communication skills Excellent written and verbal English communication skills Improve engineering leverage with AI tooling , automation, and internal workflows rather than using AI as a gimmick Nice to Have Experience building AI-powered applications, agentic systems, LLM integrations, or orchestration frameworks Experience with TypeScript or full-stack development Experience mentoring engineers or contributing to technical leadership Experience with observability, monitoring, logging, and performance optimization Experience working in fast-growing product or startup environments Responsibilities Design, develop, and maintain scalable backend services, APIs, and asynchronous processing systems Translate business requirements into robust technical solutions and scalable system designs Own services throughout their lifecycle, including deployment, monitoring, reliability, and continuous improvement Design efficient data models and optimize database performance for production workloads Collaborate with product, frontend, and platform teams to deliver end-to-end features Improve engineering productivity through automation and AI-assisted development workflows Participate in architecture discussions, code reviews, and technical decision-making Implement monitoring, logging, and observability solutions to ensure production reliability Continuously improve system scalability, performance, security, and maintainability Contribute to engineering best practices and knowledge sharing across the team
Technology
Yard Corporate
Senior Python Data Engineer
Senior
Hybrid
Warsaw, MZ, Poland
30,000 - 45,000 PLN/mo
🏢 Summary: Opportunity for an experienced Python Data Engineer to build scalable data platforms and analytics systems for global financial institutions. The role focuses on designing cloud-based data pipelines, enhancing system reliability, and integrating modern AI tools into engineering workflows. You will collaborate across distributed teams to deliver high-quality solutions in enterprise data, risk analytics, and AI-driven metadata applications. 🗂️ Requirements: 4+ years of professional experience in software or data engineering using Python, Strong knowledge of data architecture, data modeling, and data warehousing, Ability to write complex SQL queries and perform advanced debugging, Experience building scalable, distributed data pipelines in cloud environments, Experience with AWS, Familiarity with event-driven architectures 📃 Skills: Python, SQL, AWS, Databricks, Spark, PySpark, Scala, Delta, Airflow, dbt, Kafka, Kubernetes, MongoDB, Grafana, Loki, Prometheus, OpenTelemetry 🏢 Description: We are partnering with top-tier global financial institutions to scale their core technology and data infrastructure. We are looking for an experienced and product-oriented Python Data Engineer to join our technology group. In this role, you will work at the intersection of cutting-edge technology and institutional finance. You will collaborate closely with data consumers, engineering teams, and business stakeholders to push the firm's technological capabilities forward. What You’ll Do: Core Responsibilities: Design, develop, and deliver high-quality, scalable Python-based solutions. Drive engineering excellence by ensuring system reliability, automating processes, and maintaining high operational standards. Actively experiment with and integrate modern AI coding tools (e.g., Copilot, Cursor) to streamline engineering workflows. Lead design discussions, mentor junior colleagues, and communicate proactively across a geo-distributed team. Depending on the specific project or team, your focus may include: Enterprise Data Platforms: Building cloud-based (AWS) pipelines for data ingestion, streaming, and cataloging. Risk & Portfolio Analytics Systems: Developing software for financial data ingress/egress, performance/exposure monitoring, and automated reconciliation. AI & Metadata Applications: Extending AI-powered semantic data access layers and internal data catalogs. What We’re Looking For: Experience: 4+ years of professional experience in software or data engineering, specifically using Python . Data Skills: Solid understanding of data architecture, modeling, and warehousing. Excellent debugging acumen and comfort writing complex SQL statements. Cloud & Architecture: Experience building scalable, distributed pipelines in a cloud environment (preferably AWS ). Familiarity with event-driven architectures. Mindset: Impact-oriented, proactive, self-starting learner who embraces engineering automation, navigates ambiguity well, and holds themselves to high ethical standards. Nice to Have: Big Data & Orchestration: Expertise in Databricks, Spark (PySpark/Scala), Delta Lake, and orchestration tools like Airflow, dbt, or Kafka. Infrastructure & Observability: Working knowledge of Kubernetes, MongoDB, and observability stacks (Grafana, Loki, Prometheus, OpenTelemetry). Offer: Competitive compensation (30k - 45k PLN) with flexible contracting options (B2B/UoP). Premium office location in the heart of Warsaw. Comprehensive private medical and dental care. Sports card and wellness benefits. Private life insurance