Jobs

At Trading Space, we support and grow two CS2 skins marketplaces and a B2B service that enables payments with in-game items. We’re looking for someone who can build scalable systems, lead all of our engineers, and align technology with business ambitions.

💪 YOUR QUEST-LINE:

• Define and own technical strategy, aligning it constantly with business goals and controlling technical debt. Overview the implementation within team plans;
• Collaborate with CPO and stakeholders to prepare and implement product roadmaps;
• Improve our engineering culture: establish architecture principles, engineering standards and clear roles, cultivate ownership and autonomy among engineers;
• Refine main architectural decisions to ensure they suit our context in the best possible way;
• Improve delivery by changing the processes from planning to deployment;
• Adopt new tools and manage resources pragmatically: to keep our systems reliable and efficient;

• Provide infrastructure and access management so analysts have timely data in secure, self-serve tooling.

   

👨‍🚀  YOUR IN-GAME SKIN:

• 5+ years in senior technical leadership roles: CTO, Head or VP of Engineering, Engineering Director or Manager;
• Led organizations of 40+ engineers and scaled at least one team by 2× (from ~15+ engineers);
• Worked in product companies, aligning needs of multiple products or business areas;
• Has a strong technical background. We use Vue, Laravel and AWS, but experience with any modern web development and infra stack will do;
• Demonstrates initiative: examples of proactively identifying problems, suggesting ideas, developing and implementing solutions that affect tens of employees across different functions;
• Worked directly with business representatives, c-level executives;
• Acts like modern manager who leads by coaching, empowerment, and building strong teams.
   

🧜‍♀️ WILL BE YOUR BOOST:

• Familiarity with the Steam trade system, skins market, or gaming experience (CS2, Dota2, Rust);
• Hands-on skills in Vue, Laravel or Gitlab CI;
• Experience setting up reliability practices (SLI/SLOs, incident management and post-mortems) or observability (metrics/logs/traces) from scratch;

• Domain experience in high-load e-commerce, Fintech, or iGaming projects.

   

🥷 YOUR POWER-UPS SOURCE:

• Spontaneous weekend from the CEO;
• Support for professional development, including events (we went on a MAJOR trip to Copenhagen, for example), certifications, and educational materials;
• Start working at a time that’s comfortable for you;
• People Partner who will always support you in word and deed;
• Anniversary and performance bonuses;
• Input on project direction in a bureaucracy-free environment;
• Regular performance reviews and personal feedback sessions;
• 20 paid vacation days and 7 sick leave days;
• Assisting with the accounting and tax management for individual entrepreneurs;
• English language and Well-being benefit — so that you can improve your mental health the way you want;
• No time tracking;
• We purchase CHARGING STATIONS for our spacers;
• We help Ukraine: every month the company supports AFU and transfers donations for ammunition and supplies.

If you read everything carefully and exclaimed: «Oh, yeah, I'm good at everything and I want to do cool things together!», then we are already looking forward to your resume and portfolio! 

Send them as soon as possible! 🚀

Responsibilities

• Design, develop, and maintain enterprise-level web applications using Angular.
• Build responsive and user-friendly interfaces based on UX/UI requirements.
• Integrate frontend applications with RESTful APIs and backend services.
• Optimize application performance and ensure cross-browser compatibility.
• Write clean, maintainable, and well-tested code.
• Participate in architecture and technical design discussions.
• Conduct code reviews and mentor junior developers.
• Collaborate with Product Owners, UX/UI designers, QA engineers, and backend developers.
• Communicate directly with German-speaking clients and stakeholders.
   

Requirements

• 5+ years of commercial experience in frontend development.
• 3+ years of hands-on experience with Angular (Angular 12+).
• Strong knowledge of TypeScript, JavaScript, HTML5, and SCSS/CSS3.
• Experience with RxJS and reactive programming concepts.
• Experience with state management solutions such as NgRx.
• Solid understanding of REST APIs and integration with backend services.
• Experience with unit testing using Jasmine and Karma, or modern alternatives like Jest.
• Familiarity with responsive design and cross-browser compatibility.
• Experience with Git.
• German language skills at Upper-Intermediate level or higher (B2+).
• Good English communication skills.

Who We Are

At Bennett Data Science, we've been pioneering the use of predictive analytics and data science for over a decade for some of the biggest brands and retailers. We're at the top of our field because we focus on delivering actionable AI for our clients. Our deep experience and product-first attitude set us apart from other groups and gets us the business results our clients want.

Why You Should Work With Us

You'll be exposed to a wide range of clients who are at the cutting edge of innovation in their field and get to work on fascinating problems, supporting real products, with real data. We help lots of companies, from some of the largest companies in the world to small startups in Silicon Valley who are building the next big thing.

Expert Mentorship: Direct guidance from senior staff with 20+ years of applied ML experience

Competitive Compensation: Market-rate pay with performance upside

Fully Remote: Work from any location of your choice, on a flexible schedule

Real Impact: Your models go into production and serve real users

The Role:

As a Senior Data Scientist, you will design, build, and deploy RAG systems and other AI solutions that help teams manage land, infrastructure, and stakeholder relationships more effectively. You'll work with large volumes of documents, permits, geospatial records, and stakeholder communications, turning unstructured and semi-structured data into reliable, queryable intelligence.

You'll own projects end-to-end: scoping the problem with internal and client-facing stakeholders, selecting retrieval and generation strategies, building and evaluating pipelines, and iterating on production systems alongside senior data engineers. You'll also contribute to the team's broader ML work: classification, extraction, geospatial modeling, and mentor junior team members as the practice grows.

This is a hands-on, senior individual contributor role. You'll need to be as comfortable explaining tradeoffs to a non-technical project manager as you are tuning a reranker or debugging retrieval recall. Client-facing communication is part of the job.

Requirements

A successful candidate has 5+ years of experience in applied data science and machine learning, with deep hands-on expertise in retrieval-augmented generation and a strong statistical foundation. They demonstrate the following:

RAG & Generative AI (Core Focus)

• Proven experience designing, building, and deploying RAG-based systems in production, including chunking strategies, embedding model selection, retrieval tuning, and reranking
• Strong understanding of hallucination mitigation techniques (grounding, citation enforcement, context window management, guardrails) and the ability to articulate tradeoffs across architectures
• Experience evaluating RAG pipeline quality end-to-end: retrieval recall, answer faithfulness, latency, and cost
• Familiarity with vector databases and hybrid search (e.g., Databricks, Pinecone, pgvector, or OpenSearch)

Applied ML & Engineering

• Production ML experience: building, deploying, and maintaining models that serve real users at scale
• Strong Python skills including scikit-learn, pandas, NumPy, and at least one deep learning framework (PyTorch or TensorFlow)
• Solid statistical foundation: hypothesis testing, distributions, probability, experimental design

Communication & Working Style

• Experience translating model behavior, recommendations, and limitations for non-technical stakeholders, particularly in domains where trust and accuracy are critical
• Comfort working independently across multiple projects simultaneously
• English proficiency at B2 or above (written and spoken)

Nice to Have

• Experience applying LLMs or transformer-based NLP for structured text classification, information extraction, or embedding-based retrieval
• Geospatial feature engineering, location-based statistics, spatial indexing, or proximity scoring, particularly in land, infrastructure, or utility corridor contexts
• Experience with Vision-Language Models (VLMs) or satellite/aerial imagery analysis for document or land parcel interpretation
• Experience with cloud ML platforms (AWS SageMaker, GCP Vertex AI)
• Exposure to utilities, energy, infrastructure, land management, or enterprise SaaS domains
• Experience fine-tuning or adapting pre-trained models (LoRA, PEFT, or full fine-tune)
• Experience with agentic architectures and deployments

Responsibilities

• Design, develop, and maintain modern web applications using Node.js and Angular.
• Build robust RESTful APIs and backend services.
• Develop responsive, high-performance frontend interfaces.
• Participate in architecture and technical design discussions.
• Integrate third-party APIs and external systems.
• Write clean, maintainable, and well-tested code.
• Conduct code reviews and mentor other team members.
• Collaborate with Product Managers, QA engineers, and DevOps specialists.
• Troubleshoot and resolve performance and production issues.
   

Requirements

• 5+ years of commercial software development experience.
• Strong expertise with Node.js and Angular.
• Proficiency in TypeScript and JavaScript.
• Experience with Express.js or NestJS.
• Strong understanding of REST APIs and microservices architecture.
• Experience with state management in Angular (NgRx is a plus).
• Knowledge of HTML5, CSS3, SCSS, and responsive design principles.
• Experience with relational and/or NoSQL databases such as PostgreSQL, MongoDB, or MySQL.
• Familiarity with Docker.
• Experience with CI/CD pipelines.
• Proficiency with Git.
• Upper-Intermediate English level or higher.

Who We Are

PAR Retail, with its Open Commerce® product suite and patent pending Wallet Steering® System, empowers Convenience & Fuel Retailers to gain more share of wallet and customer lifetime value than possible with any other solution provider. PAR Retail’s unified Open Commerce product suite consists of: Activate for Intelligent 1:1 Loyalty, Transact for Contactless Commerce, and Experience for Cross-Channel Customer Experiences. PAR Retail’s solutions are supported by a set of subscription-based program management services and are contractually backed by its 1.5X Performance Guarantee.

Technology stack:

OS and Android apps, React native, Node.js, TypeScript, Playwright, Charles, Fiddler, TestRail, Jira.

Requirements:

- 5+ years of experience in web and mobile apps testing;

- Backend testing experience: API, Database (SQL), 3rd party services integration, analytics;

- Experience in automation or desire to evolve as general QA;

- Solid understanding of client-server architecture;

- Test documentation creation: сheck lists, test cases, test-reports, etc;

- Experience with bug-tracking systems like Jira;

- Knowledge of QA tools: Chrome Developer Tools, Charles, Postman etc.;

- English — upper-intermediate level;

- Experience with Scrum processes.

Responsibilities:

- Requirements analysis and testing;

- BE and mobile clients testing;

- Bug-reporting and working with bug-tracking systems;

- Communication with development and project management teams;

- Prepare and support internal documentation for project.

PAR Retail Offers:

- Long-term employment;

- Competitive compensation with regular performance-based salary and career development reviews;

- Paid vacations and sick leaves;

- Health insurance program;

- Flexible working hours;

- Sponsored company educational program, corporate library;

- Funny celebrations, team outings, and company events;

- A unique and friendly environment where everyone can explore and learn new technologies.

Summary
We’re looking for a hands-on Lead Developer to help build and evolve our next-generation website builder and CMS platform. This role is ideal for someone who enjoys owning complex systems, writing production code, and helping shape technical direction alongside Product and TPM partners.

This is a 60/40 hands-on leadership role — you’ll be building critical features while also guiding design decisions and reviewing work across the team.

This role requires at least 10 years of hands-on experience as a developer, writing code in PHP & Laravel, as well as Team/Tech Lead experience. 

Responsibilities

• Lead development of core platform features across backend and frontend
• Write and review production code (Laravel, PostgreSQL, Angular/TS)
• Own database design and data integrity in a multi-tenant SaaS
• Partner with Product and TPMs to translate requirements into technical solutions
• Debug complex, cross-system issues involving editor state, persistence, and rendering
• Establish and maintain coding standards and architectural patterns
   

Requirements

• Strong backend development experience
• Deep understanding of database design (PostgreSQL preferred)
• Experience working on multi-tenant SaaS systems
• Comfortable working across the stack
• Solid debugging and problem-solving skills
   

Nice to Have

• Experience with CMSs or visual editors
• Familiarity with Angular, React, or similar frameworks
• Experience modernizing or replacing legacy systems

Other

• Fully remote, contract position (full-time, long-term)
• Adequate management, flexible schedule (4 hours overlap with EST time zone required, other hours at your convenience). 
• Steps in the hiring process:

1. Resume review + Intro call;
2. CodeSignal test;
3. Three tech interviews before an offer is extended

Overview 

Come join us as we scale our retail and commerce loyalty platform! PAR Retail is looking for a Senior NodeJS engineer on its expanding product engineering team as we build and grow our Open Commerce enterprise software-as-a-service platform. 

Open Commerce is a technology suite that enables marketing professionals in the fuel & convenience industry to create real-time, hyper-personalized offers and customer interactions across a variety of channels (mobile, web, SMS, and in-person) to drive customer behavior toward a desired goal. 

Our technology bridges financial payment providers, retail fuel pump technology, and customer experience by wrapping low-level standards-compliant integrations with powerful software abstractions on an ultra-modern software platform. Our platform services and applications are built using a broad swath of technologies (Typescript, NodeJS, Ruby, React, and others), interconnected via GraphQL and RabbitMQ, and run in AWS using Terraform, Helm and Kubernetes (via EKS). 

PAR Retail has its headquarters in Philadelphia, Pennsylvania (USA) and leverages a diverse distributed product engineering and operations team across the United States and Ukraine. PAR Retail offers highly competitive compensation and benefits, as well as an engineering-friendly and product-centric culture. On PAR Retail’s Open Commerce team, we embrace a deeply collaborative software product development process where engineering, design, and product collaborate to shape and ship new functionality. 

Successful candidates will enjoy PAR Retail’s friendly and flexible culture, and embrace our relentless drive to excellence and goal of providing the #1 retail marketing platform in the fuel & convenience industry and beyond. 

Responsibilities 

• Working with the team, design and implement new functionality based on product objectives and requirements. 
• Work with the broader product engineering team to plan and coordinate feature and functionality improvements, as well as resolve bugs and execute technical enhancements, that cross-cut large parts of our platform. 
• Work to continually learn, improve technology skills, expand knowledge of the Open Commerce platform technologies, and gain increasing versatility across the breadth of our platform systems. 
• Expand APIs and business logic, and as needed write or revise customer-facing API documentation. 
• Work with our infrastructure team to enable and enhance highly-available, performant, and well-instrumented backend applications and services that run in our customer environments at substantial scale. 

• Support operations and infrastructure teams for issue resolution on relevant Open Commerce applications or services running in production environments. 

   

Qualifications 

• Practical experience building systems in Node.js 
• At least 5 years industry experience or equivalent 
• Experience building and maintaining backend APIs, including design, implementation, evolution, and maintenance 
• Familiarity with TypeScript, or similar modern strongly-typed language 
• Proficiency using both relational and non-relational database technologies 
• Strong understanding and familiarity with CI/CD pipelines and automated testing 
• Basic knowledge Docker and Kubernetes 
• Familiarity with OAuth and JWT 
• Some experience with front-end JS technologies, esp. React or Angular 
• An ability to work in service-based architectures 
• Highly independent and able to effectively self-organize and prioritize work 
• The ability to write clean code, and the discipline to write effective automated unit tests in order to deliver high-quality system improvements 
• An ability to effectively break down larger bodies of work for delivery as a series of small, self-contained changes to the system 
• Excellent spoken and written communication skills 

• BS/MS degree in Computer Science, Engineering, or equivalent years of professional working experience 

   

Bonus Points 

• Experience with Nest.js and/or GraphQL 
• Experience with Ruby on Rails 
• Experience with AWS 
• Experience working in distributed teams 

• Experience in the retail and/or fuel & convenience industries 

   

PAR Retail Offers:

- Long-term employment;

- Competitive compensation with regular performance-based salary and career development reviews;

- Paid vacations and sick leaves;

- Health insurance program;

- Flexible working hours;

- Sponsored company educational program, corporate library;

- Funny celebrations, team outings, and company events;

- A unique and friendly environment where everyone can explore and learn new technologies.

Role Purpose

Responsible for Level 3 technical support and escalation handling for Azure, Microsoft 365, network, infrastructure, and security environments. Provides third-line investigation, root cause analysis, resolution of complex incidents, and contributes to the maintenance and development of cloud solutions. On-call and out-of-hours support is required.

Key Responsibilities

• Deliver Level 3 support for Azure and Microsoft 365 via ticketing system and act as escalation point for Service Desk and L2 teams.
• Perform detailed diagnostics, root cause analysis, and resolution of incidents and problems.
• Escalate unresolved issues to external vendors according to established procedures.
• Contribute to building, configuration, automation and maintenance of cloud infrastructure, networking, and security components.
• Create and maintain technical documentation, knowledge base articles, and support standards.
• Monitor system availability, capacity, and performance; carry out planned maintenance tasks.
• Provide onsite and remote technical support as required.
• Comply with all internal processes, security, and EH&S policies.

Required Experience

• Minimum 3 years of hands-on experience managing and supporting Azure and Microsoft 365 environments at Level 3.
• Strong practical experience with the following:
  • Azure core services (VM, Storage, VNet, Backup, Site Recovery, High Availability)
  • Microsoft 365/Entra ID (Exchange, Teams, SharePoint, licensing, hybrid environments)
  • Azure networking and security (NSG, Azure Firewall, ExpressRoute, VPN, best practices)
  • Microsoft Intune (policies, Autopilot, device management)
  • Azure Sentinel and Microsoft Defender for Cloud/Endpoint
  • PowerShell scripting and Azure Automation
  • Azure Virtual Desktop
  • Windows Server 2016-2022 and Linux administration

Required Qualifications

• University degree in IT or related field
• ITIL Foundation certification
• Active Microsoft/Azure certifications (AZ-104, AZ-500, MS-500 or equivalent)
• Office 365 and security certifications are a plus

SFIA Level: 4 (Enable)

Summary

• IT Infrastructure Engineer/Systems Administrator with experience in Azure VM lift-and-shift migrations from Rackspace.
• Skilled in provisioning Azure VMs (Web and DB), Windows Server 2012 R2, IIS, Classic ASP, and SQL Server 2014 migrations with full data integrity.
• Strong knowledge of Azure VNet, NSG, and secure VM networking.
• Experienced in VM-based backup strategies (IaaS only), post-migration validation, and Classic ASP session testing.
• Able to deliver fast, stable migrations, documentation, and support within strict timelines (2-3 weeks).
• Focused strictly on infrastructure, not development or PaaS.

Job DescriptionRole Overview

The position is for an IT Infrastructure Engineer / Systems Administrator specializing in Azure Virtual Machine migration. The primary responsibility is to execute a direct lift-and-shift migration of a legacy B2B software platform from Rackspace virtual machines to Azure Virtual Machines. This role focuses on infrastructure, systems administration, and hardware migration rather than software development or cloud-native architecture.

Key Responsibilities

• Provision and configure two Azure Virtual Machines within a Virtual Network (VNet), specifically one Web Server VM and one Database Server VM
• Migrate the web server environment running Windows Server 2012 R2 and a Classic ASP application, including all dependencies and custom software
• Migrate SQL Server 2014 databases, comprising multiple client-specific databases, ensuring full data integrity throughout the process
• Design and implement a data backup and redundancy strategy tailored to Azure VMs, explicitly excluding PaaS or SQL-as-a-Service solutions
• Set up networking components such as VNet, Network Security Groups (NSG), and connectivity between the two Azure VMs
• Validate the full functionality of the application post-migration, with particular attention to session handling due to Classic ASP session variable dependencies
• Document the entire environment and migration process comprehensively and provide a detailed handover to the internal client team
• Provide ongoing periodic maintenance and support following the migration completion

Additional Role Requirements

• Immediate availability to start, with a strict timeline of 2 to 3 weeks to complete the migration.
• Strong communication skills in English (minimum 7/10 proficiency) to interact effectively with non-technical stakeholders.
• Global candidate search with no physical location restrictions.
• Ability to overlap with North American Central Standard Time (CST) business hours for meetings and urgent migration support.

Role Clarifications

• This role is strictly focused on IT infrastructure and systems administration, not software development or cloud-native application engineering.
• No involvement with containerization, Kubernetes, Azure PaaS services, or application code migration/refactoring.
• The migration is a direct lift-and-shift with no re-architecture or service changes.

Technologies and Tools Used: Azure Virtual Machines, Azure Virtual Network (VNet), Network Security Groups (NSG), Windows Server 2012 R2, IIS configuration, Classic ASP environment, SQL Server 2014, Rackspace virtual machines, data backup and redundancy solutions for Azure VMs.

Role Purpose

Responsible for hands-on management, support, and development of Azure and Microsoft 365 cloud environments. This includes infrastructure design, networking, security, automation, incident resolution, and continuous improvement of cloud solutions. On-call and out-of-hours support is required.

Key Responsibilities

• Manage and support Azure and Microsoft 365 environments through the ticketing system, handling complex incidents and service requests.
• Perform diagnostics, root cause analysis, and resolution of incidents and problems.
• Escalate unresolved issues to external vendors according to established procedures.
• Contribute to the design, configuration, automation, and maintenance of cloud infrastructure, networking, and security components.
• Develop and maintain technical documentation, knowledge base articles and operational standards.
• Monitor system availability, capacity and performance; carry out planned maintenance and improvement tasks.
• Provide onsite and remote technical support as required.
• Comply with all internal processes, security, and EH&S policies.

Required Experience

• Minimum 3 years of hands-on experience managing and supporting Azure and Microsoft 365 cloud environments.
• Strong practical experience with the following:
  • Azure core services (VM, Storage, VNet, Backup, Site Recovery, High Availability)
  • Microsoft 365/Entra ID (Exchange, Teams, SharePoint, licensing, hybrid environments)
  • Azure networking and security (NSG, Azure Firewall, ExpressRoute, VPN, best practices)
  • Microsoft Intune (policies, Autopilot, device management)
  • Azure Sentinel and Microsoft Defender for Cloud/Endpoint
  • PowerShell scripting and Azure Automation
  • Azure Virtual Desktop
  • Windows Server 2016–2022 and Linux administration

Required Qualifications

• University degree in IT or related field
• ITIL Foundation certification
• Active Microsoft/Azure certifications (AZ-104, AZ-500, MS-500 or equivalent)
• Office 365 and security certifications are a plus

🚀 We’re hiring! Product Project Managers

At ScrumLaunch, we continue to grow and are looking for 2 Project Managers to join our remote team across Latin America 🌎

We partner with fast-growing US startups, working closely with founders and engineering leaders to build and scale impactful web and mobile products.

🔎 Who we’re looking for

A proactive, business-oriented Project Manager with a strong product mindset, excellent communication skills, and a passion for building efficient processes in dynamic environments.

✅ Requirements

• 3+ years of experience in Product Ownership / Project Management
• At least 3 years of hands-on experience in software development projects (Web & Mobile)
• Strong understanding of Scrum, Kanban, and Extreme Programming (XP)
• Experience defining workflows, estimating projects, and prioritizing tasks under tight deadlines
• Familiarity with tools like JIRA, Trello, or similar
• Advanced English level (C1)
• Availability to communicate with clients in PST / EST time zones

🛠 Responsibilities

• Initiate new projects and implement effective project management processes
• Gather project requirements by working closely with stakeholders
• Define product vision, strategy, and roadmap
• Manage and prioritize the product backlog
• Lead and coordinate cross-functional teams (Design, Development, QA)
• Conduct market research and competitive analysis
• Ensure delivery within scope and timelines
• Resolve issues and manage risks proactively
• Build strong, long-term relationships with clients and stakeholders
• Onboard and support new team members

🌟 What we offer

• Fully remote work
• Challenging and diverse projects with US-based startups
• A collaborative, supportive team culture
• 12 vacation days + 5 sick days per year
• Access to therapist and psychologist support for mental well-being

📌 Please note: the hiring process includes a test assignment.

Hey there! 👋

We're looking for an expert full-stack React/Node.js engineer with experience in building AI tools to join our growing team! We're working on a product that has already made an impact in a major U.S. industry and has gained traction with several Fortune 500 companies. We're a small yet powerful team, but considering recent growth - expect plenty of opportunities of growth and a chance to tackle interesting engineering challenges!

What skills we expect you to have: 🎯

• English: Advanced (B2+)
• B.Sc. in Computer Science or similar;
• Excellent communication, collaboration, problem-solving, and analytical skills;
• 5+ years of writing commercial React.js and Node.js apps;
• Extensive experience with SQL-based databases;
• Extensive experience with Amazon Web Services;
• Understanding of LLMs and their application to building web applications;

What would be a huge plus: ✨

• English: C1
• Background in building your own side projects (please share links);
• Experience of leading engineering teams or initiatives at your previous company;
• Experience in building CI/CD pipelines;
• You have experience building AI apps (LangChain / LlamaIndex) and with MLOps;

What’s in it for you: 🌴

Professional Growth & Lifestyle:

- Remote work and flexible working hours (our team is 100% remote);

- Opportunity to join an international team of a fast-scaling startup;

- Leadership initiatives;

Benefits:

- Annual vacation: 20 business days (100% compensation)

- Annual sick leave: 10 business days (100% compensation)

- Competitive compensation.

Please, feel free to reach out should you have any questions!

Best regards,

Universium Team ❤️

🌎 About Akvelon:

Akvelon is a US-based software engineering and consulting company partnering with Fortune 500 clients and innovative product companies worldwide. We specialize in AI/ML, cloud solutions, enterprise platforms, and large-scale data-driven systems.

We are currently hiring a Senior Data Scientist for a high-impact AI/ML product environment focused on digital identity, authentication, fraud prevention, and large-scale production ML systems.

The platform processes billions of events annually and serves enterprise customers across fintech, banking, healthcare, e-commerce, gaming, and payments domains.

You’ll work closely with ML Engineers and cross-functional teams on experimentation, model monitoring, statistical analysis, and production-grade machine learning systems that directly impact customer trust and business outcomes.

💻 Responsibilities:
• Develop, validate, and optimize ML/statistical models
• Design experiments and evaluate model performance
• Monitor deployed ML models for drift, reliability, and performance degradation
• Build dashboards and monitoring systems for model observability
• Collaborate with ML Engineers on deployment and production workflows
• Translate model insights into actionable business recommendations
• Work with raw data and optimize analytical workflows
• Communicate findings to technical and business stakeholders

✅ Requirements:
• 5+ years of commercial experience in Data Science / Applied ML
• Strong Python skills (pandas, scikit-learn)
• Strong background in statistics and experimentation
• Advanced SQL skills and experience with Snowflake
• Experience with production ML systems
• Experience with model monitoring, drift detection, retraining strategies
• AWS experience
• Experience collaborating with engineering teams
• Strong communication and stakeholder management skills
• Upper-Intermediate+ English

➕ Nice to have:
• PyTorch or TensorFlow
• AI observability / fraud detection / identity systems
• Looker or similar BI tools
• API & deployment workflow understanding
• Experience mentoring engineers/data scientists

🕒 Work format:
• Full-time
• Remote
• PST overlap required (through 11 AM PST)
• Poland preferred

🎁 We offer:
• Paid vacation and sick leave
• Flexible working schedule
• Remote-first environment
• Career Development Plan
• Paid certifications and external training
• Internal workshops and English classes
• Opportunity to work on production AI systems at scale
• Long-term collaboration with strong engineering teams

🚀 About Kilona.io

At Kilona.io, we build high-quality, high-speed web and mobile AI applications. We partner with ambitious global startups to create cutting-edge products that are fast, scalable, and beautifully engineered.

Right now, we’re looking for a Senior React Native + Node.js Developer who can take ownership of complex mobile products, contribute to backend architecture, and help scale modern AI-driven applications.

This role is ideal for someone who is deeply experienced in React Native development, comfortable making technical decisions, and confident working across both mobile and backend environments.

💼 What You'll Do

• Lead development and scaling of mobile applications using React Native
• Design, build, and optimize backend services and APIs using Node.js (Express.js)
• Improve application performance, scalability, and maintainability
• Collaborate closely with product, design, and engineering teams in a fast-moving remote environment
• Participate in technical planning, architecture discussions, and code reviews
• Help establish engineering best practices and maintain high code quality
• Mentor or support less experienced developers when needed

✅ Requirements

• 5+ years of commercial software development experience
• 4+ years of hands-on React Native experience (Expo OR CLI)
• Strong practical experience with Node.js and Express.js
• Experience designing and working with REST APIs and backend integrations
• Experience with databases and cloud services such as PostgreSQL, MongoDB, Firebase, Supabase, AWS DynamoDB, etc.
• Solid understanding of mobile architecture, app performance optimization, and production deployment
• Experience publishing and maintaining apps in the App Store and Google Play
• Good written and spoken English (B2+)

✨ Nice to Have

• Experience with CI/CD pipelines for mobile applications
• Experience working in startup or high-growth product environments
• Experience using AI-powered development tools (ChatGPT, Cursor AI, Lovable, V0, etc.) to speed up development
• Experience building scalable mobile products with strong backend logic

🧑‍💻 Working Conditions

• Hourly-based payment model
• Fully remote — work from anywhere
• Flexible schedule with focus on ownership and results
• Easy time-off policy — no unnecessary bureaucracy
• Work on innovative AI-driven products with a highly skilled international team
• Fast decision-making and direct communication

🔍 Hiring Process

1. Intro call or short screening (20–30 mins)
2. Technical interview (up to 1 hour)
3. Final interview (optional)
4. Offer 🎉

Interested? Let’s talk! 📨

We’re always excited to meet experienced engineers who love building ambitious products.

We are looking for an experienced Infrastructure & Virtualization Engineer to manage, design, and improve server, storage, virtualization, and cloud infrastructure. This role is ideal for a hands-on infrastructure professional with a strong builder mindset - someone who has designed and implemented systems, not only supported them.

Key Responsibilities

• Manage and monitor company’s server and storage infrastructure, both on-premises and in the cloud.
• Install, configure, test, and maintain operating systems, application software, and system management tools.
• Ensure high availability, reliability, and performance of systems and infrastructure.
• Provide Tier 3 IT support to business units across the organization.
• Design and deliver solutions for complex IT infrastructure challenges.
• Collaborate with other departments to support company goals and technology initiatives.
• Identify opportunities to improve existing processes, automate repetitive tasks, and evaluate new technologies that enhance the end-user experience.

Requirements

Must-Have Experience

• 6+ years of hands-on infrastructure experience.
• Strong hands-on experience with VMware vSphere 6.x / 7.x, including installation, configuration, and system design.
• Strong knowledge of the Microsoft infrastructure stack, including:
  • Active Directory
  • DNS
  • DHCP
  • AD Connect
  • Windows Server
• Solid understanding of networking, operating systems, routing, and security fundamentals.
• Proven experience designing and building infrastructure environments, not only supporting existing systems.
• Security-conscious approach to system design, patching, access control, and infrastructure operations.

Cloud & Identity Management

• Hands-on experience with the Microsoft Azure ecosystem, including:
  • Microsoft Entra ID, formerly Azure AD
  • Identity and access management
  • SSO
  • Role-based access control
• Experience with Microsoft 365 services, including:
  • Exchange Online
  • Teams
  • SharePoint
• Experience with Microsoft Endpoint Manager / Intune.
• Experience with AWS services, especially:
  • EC2
  • S3
  • Route 53
  • FSx
• Understanding of hybrid cloud architectures and basic cloud security controls.

Virtualization & Infrastructure

• Hands-on experience with VMware-based infrastructure.
• Familiarity with physical servers and data center maintenance lifecycle.
• Experience with infrastructure design, implementation, upgrades, and ongoing optimization.

Operating Systems

• Strong working knowledge of:
  • Windows Server
  • Windows Client OS
  • Linux distributions
  • macOS
• Experience managing macOS endpoints with Jamf Pro or similar enterprise tools.

Storage & Backup

• Hands-on experience with NAS / SAN systems.
• Experience with storage platforms such as:
  • NetApp
  • QNAP
  • BlueXP
• Familiarity with backup systems, preferably Commvault / Metallic - advantage.

Scripting & Automation

• Proficiency in PowerShell and/or Python for system administration, automation, and process improvement.

   

Nice to Have

• Experience with NetApp or other enterprise storage platforms.
• Experience with Commvault / Metallic.

• Broader experience with hybrid cloud infrastructure and automation.

   

Soft Skills

• Self-managed and able to work independently.
• Proactive, improvement-driven, and solution-oriented.
• Strong troubleshooting and problem-solving skills in enterprise-scale production environments.
• Excellent interpersonal and communication skills.
• Ability to work effectively across teams and business units.
• Fluent English - written and verbal.