Jobs

We are looking for a Senior Python Engineer — who has experience building scalable API services using FastAPI or other ASGI frameworks. This role is ideal for an engineer with deep technical expertise, strong skills in designing microservices and event-driven architectures, and a commitment to writing clean, testable code.

Project

A Sales Intelligence solution tailored for the B2B segment, actively used by Sales, Marketing, Operations, and Recruiting teams.

• Development started 1.5 years ago
• 1.5B+ data points processed and improved daily

Responsibilities

• Design, develop, and maintain scalable backend services with REST APIs using FastAPI or similar frameworks.
• Architect and manage SQL (Postgres) and NoSQL databases.
• Write clean, modular, and testable code based on clean architecture principles.
• Implement unit and integration tests (e.g., Pytest) and support CI/CD pipelines.
• Work closely with frontend developers to ensure seamless integration.
• Collaborate with data engineers to optimize internal data platforms.
• Build and maintain event-driven systems using Kafka or similar.
• Containerize and orchestrate services with Docker and Kubernetes.
• Operate within AWS infrastructure and contribute to DevOps practices.

Requirements

• 5+ years of backend development experience with a strong focus on Python
• 1+ years with FastAPI or Flask and async programming.
• Solid experience with SQLAlchemy or other ORM tools
• Strong knowledge of both SQL and NoSQL database design and optimization
• Practical experience in microservices and event-driven systems
• Understanding of clean architecture and best practices in code quality
• Experience with Dockerized environments
• Familiarity with AWS and DevOps practices is a plus
• Strong problem-solving skills and independence in a startup environment
• Passion for technology and continuous learning

Are you excited by the idea of programming the tools that connect software to hardware? We are seeking a highly skilled Python Software Engineer with expertise in working with serial communication protocols (e.g., UART, SPI, I2C) using Python-based tools. The ideal candidate will have a strong background in developing applications that interface with various electronic devices and peripherals, including microcontrollers, sensors, and other peripherals. Come and join us in Lviv as a Python Software Engineer for Embedded Devices!

In this position, you will collaborate with embedded developers, validation engineers, and hardware teams to develop robust, Python-based tools that facilitate seamless hardware interaction and automate firmware testing. You’ll support the entire development cycle while expanding your skills in C programming to deepen your firmware knowledge and boost your impact on next-generation embedded solutions.

In your new role you will:

• Develop Python tools for hardware interaction and data collection
• Create Python scripts to automate firmware testing and evaluation
• Support embedded development by writing and debugging helper scripts
• Work with serial protocols (e.g., UART, SPI, I2C) via Python-based tools
• Contribute to Git-based repositories and participate in code reviews
• Learn and apply basic C programming to better understand firmware structure

You are a proactive problem-solver with strong communication skills and a passion for embedded systems. You thrive in cross-disciplinary teams, take ownership of your deliverables, and quickly adapt to evolving requirements. You are detail oriented and comfortable navigating complex technical landscapes.
You are best equipped for this task if you have:
 

• An Electronic Engineering or Computer Science degree, or any relevant degree
• 1-3 years of solid understanding of Python programming (functions, modules, OOP, file handling, error handling, etc.)
• Experience in Computer Science fundamentals (data structures, object-oriented design, algorithm design, problem-solving, and complexity analysis)
• Solid experience in serial protocols (e.g., UART, SPI, I2C) via Python-based tools
• Experience with Python libraries like unittest
• Familiarity with data parsing and logging
• Experience in debugging/troubleshooting in an embedded system
• An understanding of Git and version control practices
• Basic knowledge of C is a plus
• A good level of English for reading documentation and communicating with the team

Please send us your CV in English

Description

We are developing a new tool to evaluate the effectiveness of retailer (e.g. large groceries chains) promotions. This solution will enhance promotion effectiveness forecasting, support choosing right way of introducing it (time, volume, type of discounts etc.) based on engeneering of historical data and introducing forecasting models.

The tool incorporates modern solution stack requirements, which will improve user experience, back-end robustness, and data processing efficiency. We anticipate these enhancements will meet stakeholder needs and contribute to business goals.
 

Requirements

• 5+ years of commercial experience in Python Software Development
• Understanding and strong practice with the development of Muti tiered Distributed Architecture and Microservices
• Knowledge of SDLC processes and tools, Iterative Design & Prototyping
• Strong understanding of Agile practices, Code Review, Continuous Integration, and Continuous Delivery principles
• Cloud experience (GCP preferred)
• Kubernetes experience (preferred)
• Upper Intermediate+ English (written and spoken)
• Java (nice to have)
   

Job responsibilities

• Provide technical leadership to the team
• Design service and database architecture
• Conduct thorough code reviews
• Oversee and configure the deployment process
• Draft clear and comprehensive technical documentation
• Engage in meetings with the customer

What's the role?

The Python Developer is a skilled professional with a strong track record in software engineering best practices, dedicated to delivering software products and applications that create significant business value. This individual will embody a continuous improvement mindset, focusing on optimizing processes and applications based on value-driven principles. The ideal candidate thrives in a global team environment and has substantial experience within the energy trading sector, demonstrating the ability to collaborate effectively and drive innovation.

Key Accountabilities for Python Developer:

• Solution Development: Deliver solutions aligned with established project patterns, methodologies, standards, and best practices.
• Application Delivery: Deliver business-critical applications in Python with scalable architecture design.
• Event-Driven Microservices Architecture: Deliver applications using an event-driven microservices architecture.
• Database Management: Manage databases, addressing performance issues, particularly with SQL Server.
• Integration Management: Manage complex integration scenarios and interfaces across the ETRM landscape.
• Back-End Microservices: Design, develop, and maintain robust back-end microservices in Python.
• Technology: Leverage Azure, GitHub Actions, CI/CD pipelines, Cache techniques, and SQL databases for efficient application development.
• Performance Optimization: Optimize application performance and scalability using performance monitoring and tuning tools.
• Security: Implement security best practices in software development, ensuring compliance with relevant frameworks and standards

Join our development team, led by a former Google engineer, and expand your skills!

Classtime saves teachers' time and gives every student a clear path to success! With more than 430'000 teachers worldwide, we need you to shape education with us! We are hiring immediately.

We are seeking an LLM/Python engineer to help us advance our educational web technology, Classtime. You will be working with a distributed team (US, Switzerland, and Ukraine) and forming the AI team together with the AI Lead. You will be reporting directly to the AI Lead. We are looking for somebody to start immediately.

Preferred time zones: EET (UTC+2) +- 2 hours

Our Product

Classtime enables teachers to create questions on an internet-connected device (mobile phone, tablet, PC/notebook), push them to all student devices, and track the performance of a class immediately in a class session. The teacher receives valuable information about the individual student's performance and can intervene as deemed appropriate, thereby improving the overall learning progress of the class. By answering the questions, all students are fully engaged, which can also be analysed after class and even over time to measure a single student's or the entire class's development. Some of our AI initiatives include comment generation, reading and listening content generation and evaluation of student answers.

Classtime is trusted by more than 430,000 teachers and various clients (schools/businesses) globally.

Спільнота Classtime в Україні: https://www.facebook.com/groups/classtimeua/

Responsibilities

• Architect, develop, and optimize our core AI codebase, emphasizing readability, modularity, and reusability.
• Design and implement comprehensive testing strategies for both traditional Python code and LLM outputs.
  Support the development and prompt engineering for key AI applications like content generation and evaluation.
• Drive AI projects through their entire lifecycle, from initial research and experimentation to MVP and production deployment.
• Establish and maintain rigorous quality assurance processes for LLM performance and output.
• Stay at the forefront of LLM advancements and emerging AI technologies, identifying strategic opportunities.
• Collaborate with the AI Lead, Domain Experts,  Teachers, Product Designers, and Software Engineers to deliver compelling user-facing products.
• Manage your own time, and work well both independently and as part of the AI team.
• Launch, iterate, and make a difference. Provide coding expertise and be ready to make Classtime better for our users.

Must-Haves

• 1+ years of professional experience with Python.
• English proficiency is required for crafting nuanced, contextually appropriate prompts and ensuring optimal model performance.
• 1+ years of experience prompting LLMs in English. 
• 1+ years of experience collaborating with cross-functional product teams (e.g., product designers, domain experts) to deliver and iterate on user-centric features.

Nice to have

• Built a side-project that involves LLMs
• Experience with Docker
• Experience with Google Cloud

Classtime's Stack

• React, Redux, Redux-Saga, TypeScript
• Micro-services, Kotlin, Python
• LLMs: OpenAI, Gemini, Deepseek, xAI, Claude, Fireworks, LangChain
• Google Cloud Platform

Compensation & Location

Market-oriented salary. Choice of workplace. We have several teammates in Kyiv (currently dislocated due to the war). Work laptop provided by the company.

Classtime Values

Curiosity - Always continue to experiment and learn.

We have to focus on our client, the teacher. We question critically, we listen carefully, and experiment creatively with new ideas. If you love to understand the unknown, then continue, because you now know 25% of our values.

Impact - Always focus on generating value for society.

We don't pride ourselves on large employee numbers, but rather on exceptional impact per team member. We expect exceptional ownership and responsibility, not only for your tasks, but for our impact on society. Don't go improve the next ad platform, help us in our attempt to shape the future of education. If you can throw a punch with impact, then use both fists, not only 50%.

Perseverance - Always keep pushing yourself.

We are a distributed team, working across several time zones. Just like us, you can live in Los Angeles, Kyiv, Zurich, or anywhere you want. Our home has many names: Google Drive, Google Meet, GitHub, Figma, Slack, etc. We don't excel through pressure, but through alignment and discipline. We don't require you to run with us forever, but don't expect a half-marathon either. Just keep in mind: pain is inevitable, suffering is not. Persevere. You're already at 75%.

Honor - Act with integrity, always help a friend or rival.

Education is not a battle against each other, but for each other. Technology is already having a great impact on education. Why do we care? Because we believe that creative, curious people will honor future generations and learn to solve the world's biggest challenges for the long term. This is what Classtime is all about – and we will relentlessly strive for our goals and keep pushing the frontiers of education. With our friends and “co-opetition”. This is 100% Classtime.

Get in touch with us now, let's talk!

Company is looking for a Senior Python Engineer (Gen AI) for remote work.
 

Company is home to 200+ engineers, designers, analysts and advisors solving complex business challenges through technology.
 

Client is a global software-as-a-service company that builds a cloud-based data platform that enables the use of connected data and automation of reporting across finance, accounting, risk, and compliance, offering services to 85% of FORTUNE® 500 companies.
 

We’ve built a data service that stores, modifies, and queries graph data structures. This service is utilized by a large number of enterprise clients to manage, retrieve, and audit their financial data.
We handle financial records for hundreds of millions of clients across Asia, Europe, and the Americas.
 

As a Senior Python Engineer, you will design and build the Platform for the Augmented Retrieval Generation (RAG) solution for the ecosystem of software products developed by the company internally.

Key Responsibilities:

- Design, develop, and maintain RAG applications to support the integration of generative AI features into existing applications that the company has.

- Build and help integrate the RESTful APIs to enable communication between AI systems and other business applications.

- Create automation scripts and tools for data processing, deployment, and workflow orchestration of the LLM-based solutions.

- Work closely with data scientists, DevOps engineers, and stakeholders to define the requirements and iterate through the solution design ideas.
 

Must have:
- experience in Python development, LLM integration (OpenAI API or equivalent) and RAG implementation

As a plus: expertise in AWS cloud services

Interview process:
1. Qualifying Call (30 min)
2. Technical interview (60 min) 
3. Client Interview

About the project:

We are seeking an experienced Backend Developer to join our team in building a robust IoT platform for electricity usage data visualization, sensor configuration, and user administration. We need someone with solid experience (junior+/middle) with whom we can develop modern applications using best practices, with a particular focus on databases, back-end development, and web services. Our main goal now is the refinement of current infrastructure to be more resilient to bugs, which we can confidently use to grow our business.

Requirements:

Must Have:

- Strong Python fundamentals.
- Django framework experience.
- API development.
- Data validation concept.
- MongoDB usage with python.
- Basic SQL knowledge.
- Familiarity with Linux environments.
- Experience with various web communication protocols (HTTP, MQTT, WebSocket, etc.).
- Strong background in DevOps tools and practices, including CI/CD, Git and TeamCity.
- Proficient in English.

Nice to Have:

- Pydantic experience.
- Experience with Raspberry Pi as end-client devices.
- Basic Flask knowledge.
- Knowledgeable in IoT communication protocols (Modbus, MBus, Lora, etc.).
- French is a plus.

Soft Skills:

- Strong analytical mindset with a solid understanding of business processes.
- A strong sense of responsibility and teamwork.
- Rigor, decision-making ability, and autonomy in task execution.

Responsibilities:

- Design, develop, and enhance platform features with a focus on scalability and performance.
- Oversee and maintain our cloud environment hosted on DigitalOcean.
- Provide technical support to the operations team to ensure smooth platform functioning.
- Integrate and manage external APIs and services, including CRM (Salesforce) and ERP systems.
- Collaborate with cross-functional teams including Product, Data

Looking for a specialist to automate a video creative generation pipeline using GenAI tools.

Tasks:

• Generate images using Flux.1 or Midjourney
• Convert images into video using Runway or etc
• Add voice and lip-sync using Multitalk or alternatives
• Assemble final video using ffmpeg:
  • Merge intro and main video segments
  • Add captions/subtitles
  • Add background music

Tools:

• Flux.1 / Midjourney (image generation)
• Runway / Pika / similar (video generation)
• Multitalk (lip-sync and voice)
• ffmpeg / captions / scripting (video assembly)

Requirements:

• Confident Python skills
• Experience with GenAI tools and API integrations
• Ability to automate multi-step media workflows
• Familiarity with ffmpeg and basic scripting (Bash/Python)

• Project Description:
  We are looking for engineers to join the G10 Rates Risk Technology Team that is developing real time risk system. The application serves a wide variety of stakeholders such as Traders, Risk Managers and Financial Controllers and its mission is to provide accurate and timely valuations of trades and their sensitivity to market factors. The types of project undertaken by the team ranges from architecture decisions, regulatory driven, business process automation, intraday risk, to large scale risk and valuation impacting changes. This is a challenging and exciting opportunity to work within G10 Rates Risk Technology, cooperating with multiple trading desks, market risk managers and financial controllers to develop this strategically important platform.

   

• Responsibilities:
  - Develop Python toolsets that will help to validate batch performance problems and build possible optimization approaches
  - Liaise with Bank internal development teams based mainly in Poland to drive towards a world class risk application
  - Deliver on time regulatory commitments
  - Be proactive and ensure the software developed by the Team remains compliant with prescribed best practices
  - Properly document work
• 
  Mandatory Skills Description:
  - 4+ years of experience
  - Expertise in at least one popular Python framework (like Django, Flask or Pyramid)

Nice-to-Have Skills Description:
- Knowledge of financial derivatives pricing and risk
- Templating, Pandas, Numpy
- Experience of working with commercial or in-house quant pricing libraries
- C# or Java knowledge

Languages:
English: B2 Upper Intermediate

• Project Description:

  We are looking for engineers to join the G10 Rates Risk Technology Team that is developing real time risk system. The application serves a wide variety of stakeholders such as Traders, Risk Managers and Financial Controllers and its mission is to provide accurate and timely valuations of trades and their sensitivity to market factors. The types of project undertaken by the team ranges from architecture decisions, regulatory driven, business process automation, intraday risk, to large scale risk and valuation impacting changes. This is a challenging and exciting opportunity to work within G10 Rates Risk Technology, cooperating with multiple trading desks, market risk managers and financial controllers to develop this strategically important platform.

• Responsibilities:

  - Develop Python toolsets that will help to validate batch performance problems and build possible optimization approaches
  - Liaise with Bank internal development teams based mainly in Poland to drive towards a world class risk application
  - Deliver on time regulatory commitments
  - Be proactive and ensure the software developed by the Team remains compliant with prescribed best practices
  - Properly document work

• Mandatory Skills Description:

  - 4+ years of experience in any IT-related position and at least 2+ years in Python
  - Expertise in at least one popular Python framework (like Django, Flask or Pyramid)

• Nice-to-Have Skills Description:

  - Knowledge of financial derivatives pricing and risk
  - Templating, Pandas, Numpy
  - Experience of working with commercial or in-house quant pricing libraries
  - C# or Java knowledge

• Project Description:

  We are looking for engineers to join the G10 Rates Risk Technology Team that is developing real time risk system. The application serves a wide variety of stakeholders such as Traders, Risk Managers and Financial Controllers and its mission is to provide accurate and timely valuations of trades and their sensitivity to market factors. The types of project undertaken by the team ranges from architecture decisions, regulatory driven, business process automation, intraday risk, to large scale risk and valuation impacting changes. This is a challenging and exciting opportunity to work within G10 Rates Risk Technology, cooperating with multiple trading desks, market risk managers and financial controllers to develop this strategically important platform.

• Responsibilities:

  - Develop Python toolsets that will help to validate batch performance problems and build possible optimization approaches
  - Liaise with Bank internal development teams based mainly in Poland to drive towards a world class risk application
  - Deliver on time regulatory commitments
  - Be proactive and ensure the software developed by the Team remains compliant with prescribed best practices
  - Properly document work

• Mandatory Skills Description:

  - 4+ years of experience in any IT-related position and at least 2+ years in Python
  - Expertise in at least one popular Python framework (like Django, Flask or Pyramid)

• Nice-to-Have Skills Description:

  - Knowledge of financial derivatives pricing and risk
  - Templating, Pandas, Numpy
  - Experience of working with commercial or in-house quant pricing libraries
  - C# or Java knowledge

• Project Description:

  We are looking for engineers to join the G10 Rates Risk Technology Team that is developing real time risk system. The application serves a wide variety of stakeholders such as Traders, Risk Managers and Financial Controllers and its mission is to provide accurate and timely valuations of trades and their sensitivity to market factors. The types of project undertaken by the team ranges from architecture decisions, regulatory driven, business process automation, intraday risk, to large scale risk and valuation impacting changes. This is a challenging and exciting opportunity to work within G10 Rates Risk Technology, cooperating with multiple trading desks, market risk managers and financial controllers to develop this strategically important platform.

• Responsibilities:

  - Develop Python toolsets that will help to validate batch performance problems and build possible optimization approaches
  - Liaise with Bank internal development teams based mainly in Poland to drive towards a world class risk application
  - Deliver on time regulatory commitments
  - Be proactive and ensure the software developed by the Team remains compliant with prescribed best practices
  - Properly document work

• Mandatory Skills Description:

  - 4+ years of experience in any IT-related position and at least 2+ years in Python
  - Expertise in at least one popular Python framework (like Django, Flask or Pyramid)

• Nice-to-Have Skills Description:

  - Knowledge of financial derivatives pricing and risk
  - Templating, Pandas, Numpy
  - Experience of working with commercial or in-house quant pricing libraries
  - C# or Java knowledge

Project Description:

We are looking for engineers to join the G10 Rates Risk Technology Team that is developing real time risk system. The application serves a wide variety of stakeholders such as Traders, Risk Managers and Financial Controllers and its mission is to provide accurate and timely valuations of trades and their sensitivity to market factors. The types of project undertaken by the team ranges from architecture decisions, regulatory driven, business process automation, intraday risk, to large scale risk and valuation impacting changes. This is a challenging and exciting opportunity to work within G10 Rates Risk Technology, cooperating with multiple trading desks, market risk managers and financial controllers to develop this strategically important platform.

Responsibilities:

- Develop Python toolsets that will help to validate batch performance problems and build possible optimization approaches
- Liaise with Bank internal development teams based mainly in Poland to drive towards a world class risk application
- Deliver on time regulatory commitments
- Be proactive and ensure the software developed by the Team remains compliant with prescribed best practices
- Properly document work

Mandatory Skills Description:

- 4+ years of experience in any IT-related position and at least 2+ years in Python
- Expertise in at least one popular Python framework (like Django, Flask or Pyramid)

Nice-to-Have Skills Description:

- Knowledge of financial derivatives pricing and risk
- Templating, Pandas, Numpy
- Experience of working with commercial or in-house quant pricing libraries
- C# or Java knowledge

Languages:

English: B1 Intermediate

We’re looking for a Backend Developer to join one of our fully cross-functional game teams. Each team is responsible for delivering a complete slot game and includes game designers, a lead artist, 2D artists, animators, QA engineers, mathematicians, and a sound designer — everything needed to launch a game independently.

Requirements

• Degree in Mathematics, Computer Science, or a related technical field;
• 1+ years of commercial experience in backend development;
• Strong Python (OOP) skills;
• Experience building client-server applications (Flask / FastAPI);
• Experience with Docker and Git (or another VCS);
• Data-driven and analytical mindset in decision-making;
• English — at least B1 level.
   

Will be a plus

• Understanding of slot game mechanics;
• Teamwork experience;
• Strong self-organization and ability to prioritize tasks;
• Motivation to tackle challenging problems and grow with the product.

Responsibilities

• Develop slot games (backend);
• Create tools for math and game testing;
• Build game bots and tools for statistical analysis;

• Collaborate closely with game developers on backend game logic implementation.

   

Benefits

Why Join Us?

🎰 Be part of the international iGaming industry – Work with a top European solution provider and shape the future of online gaming;

💕 A Collaborative Culture – Join a supportive and understanding team;

💰 Competitive salary and bonus system – Enjoy additional rewards on top of your base salary;

📆 Unlimited vacation & sick leave – Because we prioritize your well-being;

📈 Professional Development – Access a dedicated budget for self-development and learning;

🏥 Healthcare coverage – Available for employees in Ukraine and compensation across the EU;

🫂 Mental health support – Free consultations with a corporate psychologist;

🇬🇧 Language learning support – We cover the cost of foreign language courses;

🎁 Celebrating Your Milestones – Special gifts for life’s important moments;

⏳ Flexible working hours – Start your day anytime between 9:00-11:00 AM;

🏢 Flexible Work Arrangements – Choose between remote, office, or hybrid work;

🖥 Modern Tech Setup – Get the tools you need to perform at your best;

🚚 Relocation support – Assistance provided if you move to one of our hubs.

We are looking for a Senior Python Developer to build the backbone of a platform that will redefine public services in Slovakia. Our project, Norvas, aims to bring cutting-edge AI to government, and we need a strong engineering leader to make it scalable and reliable.

You will be responsible for designing and building robust APIs, managing data pipelines, and integrating sophisticated AI models (LLMs, NLP, RAG) into a production-ready system. This is a unique opportunity to work at the intersection of modern backend development and applied AI, all while contributing to a project with massive societal impact.

If you are passionate about building high-quality, scalable software and want your work to truly matter, this is the role for you.

Note: We are currently in the proposal stage for a major grant. This initial phase involves presenting a credible team. We are looking for candidates open to a non-binding consulting agreement initially, with a clear path to a full-time or part-time paid role upon securing funding (decision expected in ~4 weeks).