**About Revolut** People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products — including spending, saving, investing, exchanging, travelling, and more — help our 60+ million customers get more from their money every day. As we continue our lightning-fast growth,‌ 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work™. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution. **About The Role** Our Technology team isn’t just one of the best in the industry. It's one of the best in the world. And we’re proud of it. It’s our driving force — our engine. From building a new financial backend to creating an innovative app, there’s nothing they can’t do. Our Technology team isn’t here to fix legacy systems — it’s here to build world-class financial features from the ground up that'll be used by millions of people around the world. Revolut's AI department drives innovation, powering products through a central platform and building specialised AI-driven systems deployed worldwide. We don't just use AI—we build the very platforms that make it possible, operating at massive scale to serve millions of customers worldwide. Our mission is to build a world-class automated foundation that empowers our scientists and engineers to solve tomorrow's challenges today. As a Software Engineer–Python (AI), you'll build the core infrastructure that powers our AI ecosystem — from large-scale data pipelines to Generative AI applications. This is an opportunity to create modern, production-grade systems from the ground up, solving complex engineering challenges at a global scale. **What You'll Be Doing**

*   Designing, building, and maintaining scalable services that support the AI lifecycle
*   Developing infrastructure and APIs that integrate third-party services and grow with the business
*   Implementing and managing robust CI/CD pipelines to validate, deploy, and monitor a diverse range of models
*   Building and scaling APIs and SDKs for serving AI models and systems
*   Ensuring low latency and high availability to meet business needs
*   Partnering with product teams to design and deliver accessible AI solutions
*   Building frameworks to track data drift, model decay, and operational health
*   Establishing the backbone for AI governance and reproducibility
*   Versioning data and models and managing a central feature store
*   Tracking lineage to ensure a clear, auditable path from research to production

**What You'll Need**

*   A degree in a STEM field or equivalent
*   A solid foundation in computer science principles
*   Proven track record designing and operating scalable backend systems in production environments
*   Deep proficiency in Python as your primary language, with solid command of additional programming languages
*   Expertise in distributed systems and modern infrastructure practices like containerisation and orchestration
*   Hands-on experience addressing challenges across the AI/ML lifecycle, including deployment, orchestration, and model management

**Nice to have**

*   Experience with Infrastructure as Code (IaC) tools like Terraform or Ansible
*   Familiarity with frameworks for high-performance model serving, especially for large-scale or Generative AI models
*   Experience building internal platforms or developer tools
*   Experience integrating third-party APIs and services to build resilient, production-grade solutions
*   Knowledge of data and model versioning strategies and tools
*   Side projects or contributions to open-source projects

Building a global financial super app isn’t enough. Our Revoluters are a priority, and that’s why in 2021 we launched our inaugural D&I Framework, designed to help us thrive and grow everyday. We're not just doing this because it's the right thing to do. We’re doing it because we know that seeking out diverse talent and creating an inclusive workplace is the way to create exceptional, innovative products and services for our customers. That’s why we encourage applications from people with diverse backgrounds and experiences to join this multicultural, hard-working team. **Important notice for candidates:** Job scams are on the rise. Please keep these guidelines in mind when applying for any open roles.

*   Only apply through official Revolut channels. We don’t use any third-party services or platforms for our recruitment.
*   Always double-check the emails you receive. Make sure all communications are being done through official Revolut emails, with an @revolut.com domain.

**We won't ask for payment or personal financial information during the hiring process.** If anyone does ask you for this, it’s a scam. Report it immediately. By submitting this application, I confirm that all the information given by me in this application for employment and any additional documents attached hereto are true to the best of my knowledge and that I have not wilfully suppressed any material fact. I confirm I have disclosed if applicable any previous employment with Revolut. I accept that if any of the information given by me in this application is in any way false or incorrect, my application may be rejected, any offer of employment may be withdrawn or my employment with Revolut may be terminated summarily or I may be dismissed. By submitting this application, I agree that my personal data will be processed in accordance with Revolut's <a class="postings-link" href="https://www.revolut.com/legal/data-privacy-for-candidates">Candidate Privacy Notice

Software Engineer (Python) - AI Platform

Industry/Sector: Insurance, Reinsurance, or Financial Services Job Responsibilities

*   Design, train, and deploy ML and LLM models using modern frameworks
*   Implement scalable data pipelines and model monitoring systems
*   Collaborate on prompt engineering, token optimization, and semantic search
*   Ensure model fairness, transparency, and compliance with AI safety standards
*   Contribute to technical documentation and internal knowledge sharing

**Requirements**

*   Minimum 5 years of experience in ML/AI engineering
*   Strong proficiency in:
*   Python, PyTorch, TensorFlow
*   LangChain, LangGraph, HuggingFace Transformers
*   OpenAI, Anthropic Claude, VertexAI
*   Vector databases (e.g., ChromaDB, MilvusDB, PGVector)
*   MLOps tools (e.g., Prefect, Flyte, Kubernetes)
*   NLP and Computer Vision techniques
*   Cloud platforms (AWS, Azure)
*   Experience with CI/CD, testing, and monitoring best practices
*   Familiarity with Agile delivery and cross-functional collaboration

ML/LLM Engineer

We are looking for a Senior Backend Developer specializing in Golang to help build and maintain the systems powering our HTML5 casual games. As a critical member of an agile and collaborative team, you will be involved from initial design through ongoing maintenance, ensuring our backend infrastructure remains robust, scalable, and secure. **About CoolGames** At CoolGames, we're proud to be a leading international HTML5 game studio, working with some of the world's biggest ‘Big Tech' game platforms, such as Netflix, Discord, Facebook and Microsoft Play. We also work with famous games IP such as Battleship, Angry Birds and Monopoly. CoolGames is part of Keesing, the world's largest Braintainment company. Keesing is a financially strong publisher of engaging sudokus, crosswords and many other puzzles & games with a presence in over 20 countries, and headquartered in The Netherlands. With the CoolGames HQ in Amsterdam, supported by our global remote teams, we offer market-competitive salaries, the chance to contribute to successful casual games that are played by millions and work directly with some of the biggest brands in the world. We believe in creativity, collaboration and delivering world-class gaming experiences, while giving you the choice to either join our Amsterdam studio or become part of our remote teams. If you want to grow your career in a profitable, internationally recognized company, work closely with world-famous partners and be part of a highly professional international team - CoolGames is the right place for you. **About The Role** As a Backend Developer at CoolGames, you'll design, develop, and maintain reliable and scalable backend systems using Golang, supporting our portfolio of casual web games. Your work will directly impact millions of players worldwide. Your responsibilities will include:

*   Designing, implementing, and maintaining backend services;
*   Collaborating closely with designers, QA engineers, developers, and producers to refine requirements;
*   Managing deployments, infrastructure-as-code, and continuous integration pipelines;
*   Contributing to the ongoing stability, scalability, and security of our cloud services;
*   Participating actively in code reviews, technical design proposals, and team processes;
*   Championing and implementing security best practices;
*   Monitoring and improving system performance and reliability

**RequirementsAbout you** You're proactive, enthusiastic, and eager to tackle challenging problems. You have strong technical skills, enjoy collaborating closely with your team, and are committed to continuous learning and improvement.

*   At least 5 years of professional backend development experience;
*   Strong proficiency in Golang;
*   Solid knowledge of Linux environments and infrastructure best practices;
*   Experience with Ansible and Docker;
*   Experienced with Agile methodologies;
*   Strong communication skills with excellent English proficiency;
*   Experience with Git and automation pipelines;
*   Experience with at least one major cloud provider (AWS, GCP, Azure);
*   Passion for game development;
*   Strong technical design skills with eye for detail;
*   Understanding of network communication protocols

**Nice to have:**

*   Familiar with GitLab CI/CD;
*   Familiar with JavaScript/TypeScript and Node.js;
*   Familiar with Terraform and AWS;
*   Familiar with Nakama

**BenefitsWhat we can offer you:**

*   An international team of 50+ professionals from almost 20 different countries;
*   Work closely with major game platforms on casual games played by millions;
*   Competitive remuneration;
*   A flexible remote working environment;
*   An open, informal, and collaborative company culture

Senior Backend Developer (remote, fulltime)

Hello, We are called People More because we treat our employees with respect, but also because the projects we work on are for people and should be easy and pleasant to use. We are technological, but we look at the bigger picture :) People More has been in existence for over three years and is an offshoot of one of the country's oldest interactive agencies - Insignia. The company is made up of people with a huge client base in the country and abroad, for whom we build projects from scratch (UX, UI, frontend, backend, mobile) or in part. We work directly for our clients and also support our partners in their own solutions. This ensures a wide range of projects and the ability to change! We work with clients all over the world. For the project that we are working on with our foreign partner, we are looking for **Full-Stack DeveloperYour Duties Will Include**

*   Develop, maintain, and enhance e-commerce websites, with a focus on IdoSell and WordPress
*   Integrate and manage third-party systems such as BaseLinker, Comarch Optima, and other sales support tools
*   Design and implement high-converting landing pages in WordPress
*   Ensure websites are optimized for performance, SEO, and accessibility
*   Maintain and update website content, graphics, and functionalities in accordance with business requirements
*   Create and refine visual elements (icons, banners, buttons, infographics) in line with brand identity
*   Edit and optimize product images for online display (retouching, background removal, compression)
*   Analyze and monitor website performance using tools like Google Analytics and Google Search Console
*   Propose and implement UX/UI enhancements based on user feedback and analytics data
*   Diagnose and resolve technical issues related to web platforms and services
*   Develop and execute A/B testing strategies and other performance optimization initiatives
*   Configure store elements such as navigation, banners, categories, and product listings
*   Manage promotional campaigns and discount mechanisms within the platform
*   Operate and manage marketing automation tools, including SalesManago

**Requirements That Must Be Met**

*   Minimum of 3 years’ experience in a similar full stack development role, preferably within the e-commerce sector
*   Strong knowledge of e-commerce platforms (experience with IdoSell is highly desirable; knowledge of PrestaShop, Shoper, or Shopify is an advantage)
*   Proficiency in HTML, CSS/SCSS for template customization and responsive design
*   Solid experience with JavaScript and jQuery for dynamic content management
*   Advanced understanding of PHP and MySQL for backend development and integration
*   Demonstrated knowledge of Responsive Web Design principles (media queries, mobile-first approach)
*   Familiarity with UX/UI best practices in e-commerce environments
*   Basic experience with Adobe Photoshop, Illustrator, or InDesign is a plus
*   Competence in optimizing web graphics for size, format, and performance
*   Very good English and Polish

**What We Offer**

*   We are open and honest and we solve problems instead of generating them.
*   Maybe it’s obvious, but we really respect our employees and associates. We used to be software developers, too, and we appreciate that job!
*   A small team
*   An international working environment and international projects
*   Private medical care
*   Sports card
*   Training courses
*   Work that is 100% remote (unless you prefer another system)

We have an office in Krakow, but if you like to work remotely, that’s absolutely fine. Over the next few months, we plan to continue working this way. After that, you decide according to what you prefer. We are OK with fully remote work. For us, you can be located anywhere. :) **Why it’s a good idea to work with People More?**

*   If you are not satisfied with your work or your tasks, we’ll find a way out together!
*   If you get bored, we will offer you a new product and new, fascinating tasks
*   We will work on your brand together: you will get an opportunity to attend conferences, including as a speaker, and we will help you publish in recognized magazines and online
*   We will facilitate your access to challenges that are usually difficult to get
*   At any time, you can talk directly to the board of People More—we talk your language because the company’s founders are software developers and designers!

**What does the recruitment process look like?**

*   A friendly remote initial interview
*   A remote technical talk
*   The decision to work together!

**Salary** 80 - 140 zł/h **contract** B2B **Location** Kraków / remote

Full-Stack Developer (E-commerce)

**Company DescriptionAbout Mirantis** Mirantis is the Kubernetes-native AI infrastructure company, enabling organizations to build and operate scalable, secure, and sovereign infrastructure for modern AI, machine learning, and data-intensive applications. By combining open source innovation with deep expertise in Kubernetes orchestration, Mirantis empowers platform engineering teams to deliver composable, production-ready developer platforms across any environment—on-premises, in the cloud, at the edge, or in sovereign data centers. As enterprises navigate the growing complexity of AI-driven workloads, Mirantis delivers the automation, GPU orchestration, and policy-driven control needed to manage infrastructure with confidence and agility. Committed to open standards and freedom from lock-in, Mirantis ensures that customers retain full control of their infrastructure strategy. **Job Description** We are seeking a **Junior Software Engineer** to contribute to the development of Lens, the leading Kubernetes platform, and related cloud-native technologies. You will have the opportunity to work on innovative features, including new initiatives to integrate AI/ML with our platform to ease Kubernetes management & troubleshooting. This position offers exposure to cutting-edge technologies and provides the chance to work on Lens Desktop and Lens Cloud, gaining experience in Electron, React, Node.js, Typescript, Next.js, Kubernetes, and more. As part of an Agile team, you will collaborate with senior engineers, product managers, and UX designers to deliver solutions that improve the Kubernetes developer experience. This role values curiosity, eagerness to learn, and a passion for technology, particularly in AI, machine learning, and cloud-native development. **Main ResponsibilitiesFeature Development**

*   Implement new features and enhancements for Lens Desktop and Lens Cloud platforms, ensuring functionality and usability.
*   Contribute to the development of AI initiatives that augment the reach of our product suite.
*   Assist in building scalable, secure, and resilient solutions using modern frontend frameworks (React, JavaScript/TypeScript) and backend (Node.js) technologies.
*   Work with databases, Kubernetes APIs, and containerized applications to deliver performant solutions.

**Collaboration and Learning**

*   Partner with senior engineers and UX/UI designers to deliver features that align with user and business needs.
*   Participate in Agile ceremonies, including planning sessions, stand-ups, and retrospectives, contributing ideas and feedback.
*   Collaborate with the Lens community and other contributors to drive innovation and maintain quality.

**Continuous Improvement**

*   Stay current with modern web and AI/ML development trends, exploring how these technologies can improve user experience and drive innovation in our products.
*   Learn and adopt best practices for cloud-native architecture, containerization, and microservices.

**Team Support**

*   Work closely with mentors and team leads to build skills in areas such as performance optimization, testing, and debugging.
*   Contribute to code reviews and documentation, fostering a collaborative and supportive engineering culture.

**Qualifications**

*   1+ years of experience (including internships or personal projects) in web development using JavaScript, TypeScript, React, and Node.js.
*   Basic understanding of Electron or willingness to learn desktop application development.
*   Proficiency in HTML, CSS, and styling pre-processors (e.g., SASS, LESS), with an understanding of responsive and modern web design principles.
*   Knowledge of Kubernetes and containerization practices is highly valued.
*   Interest in AI/ML technologies and their application in solving real-world problems.
*   Familiarity with Agile development methodologies and experience working in team environments.
*   Strong problem-solving skills and eagerness to learn new technologies.
*   Basic understanding of version control systems, particularly Git.
*   Excellent communication and teamwork skills, with a proactive attitude toward challenges.

**Preferred Qualifications (Nice-to-Have)**

*   Hands-on experience with AI/ML frameworks, libraries, or APIs.
*   Knowledge of databases (SQL/NoSQL) and working with REST APIs.
*   Exposure to cloud-native development or cloud platforms like AWS, Azure, or GCP.
*   Experience contributing to open-source projects.
*   Good foundation in unit testing, leveraging technologies like Jest, React Testing Library, or any other JavaScript testing frameworks.

**Additional InformationWhat does Mirantis offer you?**

*   Work with an established leader in the cloud infrastructure industry.
*   Work with exceptionally passionate, talented and engaging colleagues, helping Fortune 500 and Global 2000 customers implement next-generation cloud technologies.
*   Be a part of cutting-edge, open-source innovation.
*   Thrive in the high-energy environment of a young company where openness, collaboration, risk-taking, and continuous growth are valued.
*   Receive a competitive compensation package with strong benefits plan.

**It is understood that Mirantis, Inc. may use automated decision-making technology (ADMT) for specific employment-related decisions. Opting out of ADMT use is requested for decisions about evaluation and review connected with the specific employment decision for the position applied for. You also have the right to appeal any decisions made by ADMT by sending your request to isamoylova@mirantis.com** We are a Leader for Container Management in G2 (#2 after AWS)!

Junior Software Engineer, Lens

We are in search of a knowledgeable Backend Developer to assist in building a robust decentralized exchange (DEX) platform. Your expertise will help us create an efficient and secure backend architecture. Key Responsibilities:

*   Develop and maintain server-side applications and APIs
*   Ensure security and data protection across the platform
*   Collaborate with frontend developers to guarantee seamless integration of user-facing elements
*   Optimize database queries and manage database systems
*   Contribute to the architectural design and scalability of the platform

**Requirements**

*   Proficiency in server-side languages such as Node.js, Python, Go, or Java
*   Experience with database technologies (SQL and NoSQL)
*   Familiarity with RESTful services and microservices architecture
*   Knowledge of blockchain technology and smart contracts is a plus
*   Strong analytical skills and experience with version control systems (Git)

**Benefits**

*   Competitve Salary and Bonuses (negotiable, based on skills and expereince)
*   Generous paid time off
*   Flexibility on location and time zone
*   Flexible working hours

**How to Apply:** Please apply if you think you would be suitable for this role. We look forward to your application and the opportunity to welcome you to our team. Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within **two weeks** of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search. **Commitment to Equality and Accessibility:** At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city. MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd's Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.

Backend developer position

Syffer is an all-inclusive consulting company focused on talent, tech and innovation. We exist to elevate companies and humans all around the world, making change, from the inside to the outside. We believe that technology + human kindness positively impacts every community around the world. Our approach is simple, we see a world without borders, and believe in equal opportunities. We are guided by our core principles of spreading positivity, good energy and promote equality and care for others. Our hiring process is unique! People are selected by their value, education, talent and personality. We dont present ethnicity, religion, national origin, age, gender, sexual orientation or identity. Its time to burst the bubble, and we will do it together! **What You'll do:**

*   Develop and maintain front-end components using React for a NextGen core banking solution;
*   Collaborate closely with cross-functional teams in a staff augmentation environment;
*   Participate in Agile development processes, contributing to sprint planning, reviews, and retrospectives;
*   Ensure high-quality user interfaces that align with product and UX specifications;
*   Communicate effectively in English with team members and stakeholders;
*   Contribute to a positive team culture through collaboration, innovation, and accountability.
*   Remote Work Model.

**What You Are:**

*   Minimum of 2-3 years of professional experience in React development (mandatory);
*   Solid understanding of Agile methodologies and practices;
*   Fluency in both spoken and written English;
*   Strong sense of responsibility and ownership;
*   Excellent interpersonal skills, with the ability to work effectively in a team;
*   Flexible, open-minded, and innovative mindset.

**What youll get:**

*   Wage according to candidate's professional experience;
*   Remote Work whenever possible;
*   Allocation of health insurance from the beginning of the employment;
*   Delivery of work equipment adjusted to the performance of functions;
*   And others.

Work together with expert teams on projects of large magnitude and intensity, long term together with our clients, all leaders in their industries. Are you ready to step into a diverse and inclusive world with us? **Together we will promote uniquess!**

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