Jobs

Trueplay is a Loyalty Booster Suite that enables iGaming brands to build lasting customer relationships based on trust and mutual benefit. It features three programs that ensure player interactions with gambling platforms are exciting right from the start.

We offer solutions on three epic levels:

• Acquisition and engagement — CopyStake introduces users to an iGaming website, allowing them to bet alongside their favorite streamers.
• Retention — the Play to Earn and Hold to Earn loyalty programs keep player engagement high by guaranteeing rakeback and distributing a share of the platform’s revenue.
• Brand equity — the tokenization of loyalty points helps transform users’ affinity for a brand into a personal interest in its financial success. In Trueplay’s take on Web3 loyalty, players feel like casino stakeholders.

More than 20 iGaming brands from 18 markets are fostering player loyalty with Trueplay. 

Our internal team is currently looking for a skilled Senior ML Engineer.

It is important for us that you have:

• 5+ years of professional experience in software engineering/ML engineering
• Strong programming skills in Python (pandas, NumPy, scikit-learn, PyTorch, TensorFlow)
• Solid experience with cloud platforms (AWS/GCP/Azure) and containerization (Docker, Kubernetes)
• Hands-on experience with MLOps tools (MLflow, Kubeflow, Airflow, SageMaker, Vertex AI, etc.)
• Knowledge of data engineering (ETL pipelines, streaming data, batch processing)
• Strong background in algorithms, data structures, and distributed computing
• Experience deploying and monitoring ML models at scale
• Excellent problem-solving and communication skills

You will be responsible for:

• Designing, implementing, and optimizing end-to-end ML pipelines (data preprocessing, model training, deployment, monitoring)
• Collaborating with data scientists to move ML models from research to production
• Ensuring scalability, reliability, and performance of ML services in production environments
• Developing tools for experiment tracking, model versioning, and reproducibility
• Working with big data platforms (Spark, Hadoop, Snowflake, Redshift, etc.)
• Implementing MLOps best practices (CI/CD for ML, monitoring, automated retraining)
• Conducting code reviews, mentoring junior engineers, and leading technical discussions

We offer:

• Remote work
• Two meeting hubs in Warsaw, Poland, and Kyiv, Ukraine
• Flexible working hours
• Compensation that includes coverage for 20 days to recharge and unwind
• Additional support covering 14 days for health-related matters when needed
• Support in professional growth during the initial months, with guidance from experienced team members
• Engaging corporate events and activities
• Competitive financial compensation

Join a Rapidly Growing Mobile Games Company!

We are a leading gaming company dedicated to creating unforgettable mobile gaming experiences. Founded by industry experts, our mission is to develop innovative and exciting casual games that captivate millions of players worldwide and remain enjoyable for years to come.

Our flagship game has become a global sensation and a top-grossing hit, while our next major release is making a significant impact in the industry. Recently, we launched a magical collaboration with Disney, bringing beloved stories and characters to life in a unique and immersive gaming experience.

We are looking for talented, passionate, and ambitious professionals to join our team and contribute to our exciting journey.

Position: Senior Technical Artist

As a Senior Technical Artist, you will serve as the bridge between creative, programming, and engineering teams in game development.

Responsibilities:

• Collaborate with heads of programming and design teams to ensure smooth production.
• Research and develop technical tools to support projects.
• Set up and optimize art production workflows.
• Support artists and engineers in the 3D art pipeline.
• Assist in asset performance checks and validation.
• Solve complex technical issues during development.
• Determine and implement software and tools required for game production.
• Develop and maintain resources and pipelines alongside programmers.
• Port finished art assets into the game engine.
• Ensure final art meets full visual resolution standards.
• Manage file sizes, polygon counts, and loading speeds within engine limitations.
• Enforce department standards and best practices.
• Prepare and design character systems such as skeletons, clothing, effect emitters, and ragdoll collisions.
• Optimize environments and establish physics barriers.
• Write custom software tailored to project needs using industry-standard scripting languages.
• Research and implement advanced rendering techniques.
• Improve performance in frame rate and memory usage.
• Resolve material and collision issues.
• Monitor overall game performance.
• Maintain thorough technical documentation.

Requirements:

• Basic knowledge of C# is essential.
• Strong portfolio or demo reel showcasing relevant work.
• Solid understanding of art and animation pipelines.
• Familiarity with game systems and the development process.
• Scripting skills for custom tools and processes.
• Ability to select the best tools and software to maximize game delivery.
• Experience with rendering, post-effects, rigging, animation, and physics simulations.
• Shader development experience.
• Strong artistic skills in proportion, color, and composition.
• Creative problem-solving mindset to overcome technical challenges.
• Experience in digital art content creation: high and low-poly modeling, unwrapping, baking, texturing, level art, etc.
• Excellent interpersonal skills for collaboration between creative and technical teams.
• Knowledge of high-level coding languages.
• Proficiency in software such as Maya, Unity3D, and Photoshop.

Why Join Us:

• Be part of a fast-growing product company with competitive salary and regular performance reviews.
• Enjoy diverse career growth opportunities.
• Contribute to core products and make a tangible impact.
• Participate in engaging team-building events and Happy Hours.
• Benefit from a referral program that helps grow a creative and fun community.

We value creativity and collaboration, constantly pushing boundaries to create something amazing. Join our team to tackle challenges, break records, and have fun while doing it!

Our team is growing, and we are looking for a Middle/Senior React Native Developer. This position is crucial within the team, and we expect the successful candidate to make a significant contribution to the product.

We are seeking a Developer with a “start-up” mindset, someone unafraid to solve difficult tasks and invent new decisions. If this sounds like you, we’d love to hear from you! Together, we can create something truly amazing!

Customer

Our Customer is a product company specializing in software and hardware engineering, transforming user experience through accessible, affordable, and immersive technology. Their areas of expertise include SDK development, intelligent platforms, feature integrations, auto-tracking with human and animal detection, augmentation, and advanced processing.

Project

The Customer develops next-generation mobile solutions that seamlessly integrate hardware and software to deliver automated user experiences. Their product combines cutting-edge technologies such as SDK development, intelligent platforms, auto-tracking (human and animal detection), augmented reality, and advanced processing to shape the future of interaction.

The project’s mission is to recognize and meet the diverse needs of consumers, allowing everyone to capture, share, and connect real-world experiences in the most accessible, affordable, and engaging way.

Their vision is to transform the way the physical world interacts with the digital world. Human interaction is evolving rapidly, and we aim to make communication and creativity effortless — no longer limited by technology.

Responsibilities

• Develop and maintain advanced mobile applications using React Native
• Collaborate with cross-functional teams to integrate SDKs, APIs, and hardware components
• Work on features involving Bluetooth connectivity, GPS, and video processing and editing
• Ensure high performance, reliability, and responsiveness of applications
• Write clean, maintainable code with unit tests and follow best practices in OOP and OOD
• Contribute to product innovation by exploring and adopting new technologies

Requirements

• At least 4 years of commercial software development experience
• At least 3 years of hands-on experience with React Native
• Solid understanding of OOP and OOD principles
• Experience with relational and non-relational databases
• Strong knowledge of SDK and API integrations
• Practical experience with Bluetooth devices and GPS functionality
• Familiarity with Back-end technologies (Node.js, Python, or similar)
• Background in video processing/editing must have
• Ability to learn quickly and adapt to new technologies
• At least an Upper-Intermediate level of English

Personal Profile

• Attention to detail
• Strong teamwork and communication skills

Job Description

Minimum of 7 years of experience in software development, with a focus on designing and implementing highly scalable web applications, data pipelines, and cloud-based microservices

Proficiency in Java programming language and related technologies. Experience with frameworks such as Spring, Hibernate, and Apache Kafka, and cloud-native services is highly desirable

Proven experience in UI/Angular development

Strong understanding of database concepts and experience with SQL and NoSQL databases (e.g., MySQL, Oracle, Cassandra, DynamoDB, Redis).

Familiarity with cloud platforms (e.g., AWS, Azure, Google Cloud) and experience deploying applications in cloud environments is advantageous

Experience with microservices and event-driven architectures

Strong analytical and problem-solving skills with the ability to troubleshoot complex issues and implement effective solutions

Excellent written and verbal communication skills with the ability to articulate technical concepts clearly and effectively

Ability to work both independently and collaboratively in a fast-paced, agile environment. Strong team player with a positive attitude and a passion for technology

Job Responsibilities

Architect, design, and develop highly scalable, reliable web scale applications, tools, and automation frameworks to meet business requirements.

Implement cloud-based microservices leveraging event-driven architectures.

Collaborate with cross-functional teams to design and build efficient and robust data pipelines for batch, near-real-time, and real-time processing using Java technologies.

Optimize applications, data pipelines, and microservices for scalability, performance, and efficiency to handle large volumes of data and traffic in a cloud environment.

Ensure adherence to coding standards, best practices, and software development methodologies. Perform code reviews and provide constructive feedback to team members.

Implement monitoring and alerting solutions to ensure the reliability and availability of applications, data pipelines, and microservices. Participate in troubleshooting and resolution of production issues.

Create and maintain technical documentation, including design documents, architecture diagrams, and system documentation.

Collaborate effectively with cross-functional teams, including product management, QA, and operations. Communicate technical concepts and solutions to both technical and non-technical stakeholders.

Department/Project Description

Our client is innovative manufacturer of medical devices in the United States which produces a devices and software applications.

At this project, you will have a great opportunity to be involved into the full development life cycle of medical software which is intended to help individuals by processing certain information taken from medical devices to identify health trends and to track daily activities. As additional there are opportunities to work with medical devices, in scope of end-to-end testing.

Job Description
Core Angular Skills (must-have)

Angular (v12+): Deep understanding of components, modules, services
Angular CLI: Efficient project scaffolding and configuration
TypeScript: Strong grasp of advanced TS features
RxJS: Mastery of Observables, Subjects, Operators, and best practices
NgRx / Akita / NGXS: State management patterns
Forms: Reactive Forms & Template-driven Forms
Routing: Lazy loading, route guards, parameter handling
Directives & Pipes: Custom and built-in 
Besides that:

Experiance with team leading 1+ years
Total experience 7+ years
High degree of comfort in Javascript, CSS, and HTML.
Experience shipping complex and well-tested UIs
Effective communicator, and have experience writing and reviewing code in a team setting using source control software like Git/GitHub
Familiarity with Java development is beneficial
Keen sense of information architecture and visual design
Motivated by writing fast, scalable code with testability in mind
Excited by working in a fast-paced environment
Nice to have

Have worked with distributed/remote teams
Familiar with functional programming paradigms and enjoy writing functional JavaScript
Have deployed web apps with AWS/S3/Cloudfront via CI/CD pipelines like Jenkins
Experience with typed JavaScript (TypeScript)
Experience with contemporary JavaScript web/build tools (NPM/Yarn, Babel, Webpack/Rollup, etc.)
Experience with SCSS, Sass, or Less
Worked with project management software like JIRA
Job Responsibilities
Work on client facing healthcare apps involving lots of data, highly complex UI workflows, actionable insights /analytics, data visualizations etc.
Lead team of UI engineers
Experiment with new ways of visualizing large amounts of data in a scalable fashion.
Build and maintain a wide variety of modular and extensible set of frontend micro services
Research on new web technologies
Department/Project Description
Our client is innovative manufacturer of medical devices in the United States which produces a devices and software applications.

At this project, you will have a great opportunity to be involved into the full development life cycle of medical software which is intended to help individuals by processing certain information taken from medical devices to identify health trends and to track daily activities. As additional there are opportunities to work with medical devices, in scope of end-to-end testing.

Our client is a modern, product-focused tech company working on protecting and managing sensitive data. They are looking for a Technical Support Engineer (Middle level) with strong networking knowledge and solid troubleshooting skills. You will join the Customer Success department and closely collaborate with engineering and integration teams. The role involves supporting customers, helping them configure and integrate the system, and even contributing code changes to improve the platform.

This is a great opportunity for someone who enjoys solving complex technical problems, working directly with customers, and driving improvements in SaaS solutions.
 

Requirements:

• 4+ years of experience as a Technical Support Engineer.
• Experience supporting SaaS products.
• Strong understanding of the OSI model and HTTP protocol.
• Solid software troubleshooting skills, with the ability to understand systems end-to-end.
• Basic knowledge of Test Driven Development, Git, SQL, and Linux.
• English — Upper-Intermediate or higher.
• Excellent communication, collaboration, and problem-solving skills.
   

Would be a plus:

• Experience with Docker and AWS.
• Coding skills (e.g., contributing small fixes or enhancements).
• Proven ability to manage projects and coordinate cross-functional work.
   

Responsibilities:

• Take ownership of customer issues and drive them through to resolution.
• Support customer onboarding as the primary technical point of contact.
• Collaborate with Account Management to understand customer requirements and map them to solutions.
• Assist customers with platform integration, translating requirements into code-level solutions.
• Engage with development teams to escalate bugs, create feature requests, or obtain missing information.
• Create or update technical documentation based on request investigations.
• Contribute fixes and enhancements via pull requests to product components.
• Meet or exceed SLA targets consistently.
• Participate in on-call support rotation and respond to emergencies when needed.

About the customer

Our client is a cutting-edge, technology-focused company that provides a better way of detecting and managing risks that may impact the outcome of clinical trials. Their solutions, all of which are cloud-based, are driven by a unique set of algorithms that interrogate clinical and operational data in real-time centrally to conveniently illuminate outliers and anomalies in data.

Role description

In this role, you will collaborate with skilled engineers, Squad leads, and our lead application architect to find elegant and manageable solutions to new and complex product needs. As a member of the Engineering team, you will join a friendly and talented group of Python developers, within a dynamic scale-up company facing great engineering challenges.

Responsibilities: 

• Build robust and scalable software using Python
• Refactor and perform code review
• Solve complex performance problems and architectural challenges
• Work with the product and design teams to understand end-user requirements, formulate use cases, and then translate that into a pragmatic and effective technical solution

• Analyze challenging problems and successfully deliver results

   

Requirements: 

• A minimum of 6 years of software development experience
• Proven experience in building large-scale client-side solutions using Python
• Rich experience creating REST-based web-services
• Strong experience with of SQL and/or NoSQL databases
• Experience in Continuous Integration and Continuous Delivery practices 
• Clear understanding of Agile/SCRUM methodology
• Strong knowledge of design and architectural patterns

• Confidence in English for daily interactions 

   

Nice to have: 

• Experience in MLOps and/or Containerization

N-iX is a global software development service company that helps businesses across the world develop successful software products. Founded in 2002, N-iX has come a long way, expanding its presence across Europe, the US, and Latin America. Today, we are a strong community of 2,000+ professionals and a reliable partner for global industry leaders and Fortune 500 companies.
 

Role description:

Our team seeks an enthusiastic, inquisitive and self-motivated individual to join the big team. Our ideal candidate is a resourceful problem-solver with extensive experience in front-end technologies and expertise in Javascript, HTML5, CSS3/SCSS.
 

About the project:

Cleverbridge is a platform that provides global e-commerce and subscription billing solutions that help companies build long-term customer relationships and grow revenue streams. With its flexible, cloud-based billing and monetization platform, cleverbridge integrates seamlessly with client systems, simplifies subscription business models and delivers an optimized online customer experience.
 

Requirements:

• A bachelor's degree in Computer Science, Engineering, or a related field
• At least 5 years of front-end development experience
• Experience with NodeJs + React (optional ExpressJS)
• Proficiency in JavaScript, HTML5, CSS3, and SCSS
• Strong expertise in PostGreSQL / RDBMS and different persistence models would be very helpful (relational DB, noSQL approaches, Event Sourcing)
• Experience with microservices
• Experience with micro-frontends
• Know-how of building APIs from scratch
• Experience working with REST & GraphQL APIs
• Understanding of an event-driven architecture (especially concepts of event sourcing and CQRS and asynchronous messaging, i.e. Publish/Subscribe pattern)
• Knowledge of general tools in team works: JIRA, Git, Jenkins, IDEs
• Knowledge of AWS / Kubernetes would be a plus
• Profound experience with unit testing frameworks
• Knowledge of UI/UX best practices
• Experience with cross-browser and mobile optimization
• Knowledge of W3C accessibility standards
• Familiarity with website performance evaluation tools
• Understanding of frontend XSS prevention
• Experience with Python is nice to have
• Ability to turn business requirements into creative and effective solution designs
• Independent problem-solver and self-starter
• Strong collaborator and able to work with peers to bring projects to life
• Uncompromising attention to detail and commitment to quality
   

Responsibilities:

• Design and customize the web application to meet client requirements and expectations
• Ensure that frontend code is optimized for cross-browser and mobile compatibility
• Create and maintain custom front-end features that are both beautiful and functional
• Designing & developing GraphQL APIs for a modern web application
• Designing, building, and maintaining performant, efficient, reusable, and reliable code
• Requirements review, requirements development
• PCI DSS standard (four-eyes principle), QA, code review
• Writing unit and integration tests
• Problem-solving and root cause analysis
• Communicating with internal product owners and stakeholders as well as external providers
• Sharing new ideas, techniques and methodologies
• Champion coding standards and help train other developers through code reviews
• Interpret business requirements and turn them into effective solution designs
• Keep project management informed of project status and progress towards deadlines
   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Description

Our client envision a zero-carbon future for society. We are a venture incubation engine which builds innovative end-to-end decarbonization businesses to accelerate the transition to a greener, more efficient world for our customers and society.
Our client's mission is to build billion-dollar potential businesses in the green economy to claim Hitachi’s potential as a climate change innovator, and to deliver on our mission to contribute to society. We incubate and build high-tech growth ventures at the intersection of mobility, energy and digital, enabling Hitachi to play a pivotal role in leading the net-zero transition.

Requirements

Essential
5+ years experience in Data Engineering
MSc in Computer Science, Electrical Engineering, Statistics, or equivalent fields.
Fluency in Python including developing code and releasing to a production environment
A solid grounding in SQL
Good understanding of software engineering best practices
Smart, motivated, can-do attitude, and seeks to make a difference
A self-starter who can find solutions to technical challenges through research and experimentation.
Ability to communicate deliverables to a non-technical audience
Familiar with version control

Desirable
Experienced working with cloud services (e.g. Azure)
Experience writing SQL queries with a strong focus on efficiency for ETL applications
Experience with CI/CD pipelines
Proficiency using DataBricks
Energy management or electric vehicle domain knowledge

Job responsibilities

Role Overview
The data science and analytics team are at the core of Hitachi ZeroCarbon as a data-driven business. Our work spans both the commercial and innovation project streams in the business. Our core objectives are to increase the value proposition of our product offerings and extract insights from our large-scale innovation projects. The data science team sits within the Product function so you will be working with data engineers, software developers, business analysts and technical architects.

Key Responsibilities
You will be curious, creative and innovative – experimenting and quickly prototyping ideas, failing fast and learning fast. You’ll take a commercial perspective to problem solving and be agile and flexible in your approach. You’ll thrive on collaboration – engaging with wider teams and business affairs. You’ll take accountability for your own deliveries and manage yourself based on outputs. And you will have a strong customer focus – making it simple for others and caring deeply about success for your customers and stakeholders.
Reporting directly to the Chief Data Scientist, your responsibilities will include:
Extracting insights from data gathered from a wide variety of sources with a focus on delivering value to our customers via our product and service offering
Developing forecasting and optimisation models to enable smart energy and power management
Report and present research findings and developments including status and results clearly and efficiently both internally and externally, verbally and in writing.
Coordinate work with Business Analysts on other project work-streams to ensure we operate as ‘One Hitachi’ and exceed our customer expectations
Adoption of coding standards and participation in peer code reviews
Work closely with the wider product team to ensure overall quality of the delivered trials and technology
Write and maintain project documentation and specifications
Work with external collaborators and maintain relationships with key individuals as appropriate.

As a Senior Back End Developer, you will design and implement anti-fraud features, build integrations with third-party financial services, and develop high-performance APIs and microservices. You will also contribute to platform-level technical decisions and help strengthen engineering culture within the team.

Key Responsibilities

• Design and develop product features for anti-fraud systems.
• Build integrations with third-party financial and technical providers.
• Develop public-facing payment services and internal microservices.
• Participate in platform-level decision-making on technologies and practices.
• Promote and follow best engineering culture and share knowledge with the team.

Requirements

• 5+ years of commercial development experience with Node.js and Express.js.
• Strong expertise in MongoDB and MySQL (PostgreSQL optional).
• Experience with Redis (optional).
• Experience with message queues (RabbitMQ).
• Hands-on experience integrating third-party services and building APIs.
• Understanding of distributed systems architecture.

Nice-to-Have

• Experience with TypeScript and NestJS.
• Background in writing automated tests (Unit, Integration, E2E).
• Experience with high-load systems.
• Strong understanding and application of OOP, SOLID, DRY, KISS principles.

What We Offer

• Competitive salary based on experience and skills.
• Flexible working schedule (remote/hybrid).
• 17 paid vacation days and 14 paid sick leave.
• Mentorship and clear career growth.
• Access to courses, certifications, and conferences.
• Collaborative team and knowledge-sharing environment.
• International projects with modern tech stack.

What You’ll Do

• Develop and maintain high-quality, scalable code for complex systems.
• Contribute to architectural decisions, helping design robust and efficient solutions.
• Collaborate with cross-functional teams to deliver innovative products.
• Mentor junior developers, sharing best practices and technical insights.
• Ensure code aligns with architectural standards and business goals.
• Participate in code reviews and advocate for clean, maintainable code.

What You Bring

• Strong development experience with a proven track record of contributing to system architecture.

Technical Skills:

Technologies & Frameworks:

• .NET Framework / .NET Core / .NET 5+
• Web API
• Entity Framework
• Angular 8+ (RxJS, NgRx)
• HTML, CSS, SCSS

Architecture & Principles:

• Dependency Injection (DI)
• CQRS
• SOLID principles

Integrations & Communication:

• MassTransit (Kafka, RabbitMQ)
• ElasticSearch

Databases:

• Oracle

• PostgreSQL

   

Nice-to-Have

• Familiarity with the banking or fintech industry.

What We Offer

• Competitive salary that matches your skills and experience.
• Comprehensive health insurance.
• Hybrid work model (office + remote flexibility).
• Modern office with a generator and Wi-Fi-equipped shelter.
• Corporate English language courses.
• Opportunities for professional growth and continuous learning.
• A supportive team of skilled professionals to collaborate with.

We are seeking a Senior Full-Stack Engineer with strong expertise in React and Node.js to join our team working on innovative e-Ink based products and companion applications. In this role, you will work across frontend, backend, and integration layers, ensuring seamless interaction between an e-ink device, its cloud services, and companion apps (web and mobile).

You will contribute to both new feature development (e.g., analytics, sharing, personalization) and maintenance/stabilization activities (bug fixing, optimization, knowledge transfer). A solid understanding of secure, scalable, and performant web/mobile applications is essential.

Key Responsibilities:

• Develop and maintain web companion applications (React, TypeScript) supporting document sync, sharing, and account management.
• Implement backend services using Node.js (TypeScript) for APIs, synchronization, and user management.
• Contribute to cloud integrations (AWS-based services, Keycloak identity management, REST APIs).
• Ensure secure data handling (encryption, authentication, GDPR compliance).
• Collaborate with mobile engineers to align React Native components with device and cloud integrations.
• Support knowledge transfer activities: documenting flows, APIs, and technical processes.
• Participate in ADR decisions, code reviews, CI/CD pipelines, and quality-first practices.
• Work closely with QA engineers on automation strategy, integration tests, and end-to-end flows.
• Optimize performance for content sync, large files (PDF/EPUB), and offline/online modes.

Required Skills & Experience:

• 5+ years of professional experience in full-stack development.
• Strong proficiency in React (Hooks, Context, Redux or similar state management) and Node.js (TypeScript, Express/NestJS).
• Experience with RESTful API design and integration.
• Hands-on knowledge of secure coding practices (JWT, OAuth2, TLS, input validation).
• Familiarity with MongoDB, SQL, or other database systems.
• Experience with CI/CD pipelines (GitLab, Docker, Kubernetes).
• Solid understanding of Agile practices and working in distributed teams.
• Upper-Intermediate English level.

Nice to Have:

• React Native experience (building cross-platform mobile apps).
• Familiarity with offline-first architectures and sync mechanisms.
• Knowledge of cloud services (AWS, Keycloak, HawkBit).
• Experience with EPUB/PDF libraries, document rendering, or file-sharing platforms.
• Prior work on IoT, embedded, or device-companion ecosystems.

Personal Attributes:

• Strong ownership mindset, able to work across frontend and backend with equal confidence.
• Comfortable collaborating in multi-vendor and multi-technology environments.
• Product-oriented, with a focus on delivering business value and user experience.
• Curious and adaptable — quick to learn new frameworks and approaches.

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

🔹Who we are!

At Levi9, we are passionate about what we do. We love our work and together in a team, we are smarter and stronger. We are looking for skilled team players who make change happen. Are you one of these players?

🔹About the project

Our client is a leading media company in Western Europe, delivering high-quality content across various platforms, including newspapers, magazines, radio, TV, websites, apps, and podcasts. Their brands reach millions of people daily, shaping the media landscape with independent and trusted journalism.
 

🔹About the job

You’ll be working on a personalisation engine that serves all customers of our client, across all media offerings. The customer team is a cross-functional- with data engineers, ML engineers, and data scientists.

🔹Responsibilities

• Maintain and extend our recommendation back-end.
• Support operational excellence through practices like code review and pair programming.

• The entire team is responsible for the operations of our services. This includes actively monitoring different applications and their infrastructure, as well as intervening to solve operational problems whenever they arise.

   

🔹Your key skills:

• analyze and troubleshoot technical issues

• communicate about technical and functional requirements with people outside of the team

   

🔹Required qualifications:

• a positive and constructive mindset and give feedback accordingly
• high standards for the quality of the work you deliver
• a degree in computer science, software engineering, a related field, or relevant prior experience
• 5+ years of software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
• can-do and growth mentality that communicates clearly
• affinity with data analysis
• a natural interest in digital media products

🔹The candidate should have:

• Experience in building microservices in Python and supporting large-scale applications
• Experience building APIs with FastAPI
• Experience in developing applications in a Kubernetes environment
• Developing batch jobs in Apache Spark (pyspark or Scala)
• Developing streaming applications for Apache Kafka in Python (experience with Kafka is a big plus)
• Working with CI/CD pipelines
• Writing Infrastructure as Code with Terraform
• AWS certification at the Associate level or higher, or willingness to obtain it
• Nice to have: machine learning knowledge

🔹9 reasons to join us:

1. Today we're working with the technology of tomorrow.
2. We don't wait for a change. We are the change.
3. We're experts in creating experts (Levi9 academy, Lead9 program for leaders).
4. No micromanagement. We are free birds with a clear understanding of what the high performance is!
5. Learning in Levi9 never stops (unlimited Udemy for business, meetups, English&German courses, Professional trainings).
6. Here you can train your body and mind.
7. We've gathered the best locations - comfortable, cozy and pet-friendly offices in Kyiv (5 minutes from Olimpiyska metro station) and Lviv, with regular offline internal events
8. We have a master's degree in work-life balance.
9. We are actively supporting Ukraine with constant donations and volunteering

🔹Simple step to get this job

Click the APPLY NOW button and leave your contacts!

We are seeking a Senior Kotlin Engineer to join our team and help build and evolve an advanced, global fintech platform. This is an exciting opportunity to work on scalable, event-driven microservices that power financial solutions used by customers around the world.

What You’ll Bring:
- Proven experience in Kotlin back-end development, with a strong focus on microservice-based architectures.
- Expertise in the Spring Framework.
- Practical experience with event-driven messaging systems (e.g., RabbitMQ, Kafka, Axon) and distributed architecture patterns.
- Good understanding of relational database design and optimization.
- Experience with cloud platforms (AWS or GCP).
- Experience with Docker and DevOps practices is highly valued.
- Understanding of Domain-Driven Design is a plus.

We’re looking for an AI Engineer to design, build, and deploy next-gen AI solutions. You’ll lead projects, mentor a small team, and work with cutting-edge tools in ML, deep learning, and generative AI.
 

Responsibilities

• Develop and optimize ML/DL/GenAI models (NLP, content generation, personalization, automation, recommendations).
• Deploy models with MLOps/AIOps, manage cloud platforms (AWS, GCP, Azure).
• Ensure high-quality code, guide team practices, and stay on top of AI trends.

Requirements

• 3–5 years in AI/ML (Python, TensorFlow, PyTorch, Scikit-learn).
• Experience with vector DBs, Docker/Kubernetes, CI/CD, REST API.
• Strong leadership and communication skills.

Will be a plus

• GenAI integration experience.
• Agile (Scrum/Kanban).
• Community contributions.
   

What We Offer

• Flexible remote/hybrid setup.
• Growth & leadership opportunities.
• Training and learning resources.

💡 Apply now and help us shape the future with AI!