N-iX

Our client is a leading financial institution focused on digital innovation and customer-centric solutions. You will join a cross-functional Agile squad working on the development of a new, cutting-edge banking product aimed at redefining the digital experience for millions of users. The team collaborates closely to deliver secure, scalable, and intuitive financial solutions powered by modern technologies.

Responsibilities:

• Breaking down high-level business requirements into clear, actionable tasks for the development team
• Overseeing the implementation of tasks and maintaining quality control throughout the development lifecycle
• Facilitating communication between customers and the technical team at all stages
• Maintaining comprehensive project documentation within Confluence
• Analyzing existing business processes to identify opportunities for automation and increased operational efficiency
•  

Requirements:

• 5+ years of commercial experience as a System/Business Analyst, demonstrating a clear Senior-level proficiency
• Proven track record in the development and deployment of WEB and Mobile products
• Exceptional ability to gather, structure, and document complex business requirements
• Ability to lead and monitor tasks from the initial requirement phase through to final product launch.
• Hands-on experience with BPMN and UML notations to map business processes and identify bottlenecks
• Practical experience in REST API design and a solid understanding of microservices architecture
• Experience working closely with UI/UX designers, Backend/Frontend developers, QA, and DevOps engineers
• Experience working with non-functional requirements (scalability, security, performance)

We are looking for an AI Solutions Engineer to join our team! The AI Solutions Engineer designs, builds, and operates production-ready AI solutions for IT Operations, IS Operations, and Governance. Working with the AI Enablement Lead and operational experts, the role turns prioritized use cases into secure, maintainable, and reusable AI capabilities.

Responsibilities:

• Design, build and deploy AI agents and AI-enabled solutions.
• Implement Retrieval-Augmented Generation, prompt workflows and process automations.
• Integrate AI solutions with existing applications, knowledge sources and enterprise platforms.
• Develop reusable technical components, integration patterns and implementation standards.
• Work closely with operational experts to turn use cases into production-ready solutions.
• Ensure that solutions are secure, maintainable, scalable and aligned with the wider client's AI technology stack.
• Monitor, support, and continuously improve productive AI solutions.
• Instrument solutions to measure the productivity improvements achieved.

Requirements: 

• Hands-on experience developing and deploying AI solutions in productive environments.
• Strong knowledge of AI agents, Retrieval-Augmented Generation, and prompt engineering.
• Experience with Azure AI, Azure OpenAI, Microsoft Copilot Studio or comparable platforms.
• Strong development skills in Python and experience with REST APIs.
• Experience integrating AI solutions with Microsoft 365 and enterprise applications.
• Knowledge of workflow and automation platforms.
• Experience with GitHub, testing, monitoring, and technical documentation.
• Good understanding of AI security, access management, logging and lifecycle management.

This is a Staff Engineer role for a highly experienced software engineer who provides technical leadership across multiple teams. The candidate combines deep hands-on engineering expertise with architectural vision, drives engineering excellence, influences technical strategy, and mentors senior engineers while remaining actively involved in software development.

The role also involves close collaboration with Product Managers and other stakeholders to shape product direction, translate business and product needs into scalable technical solutions, and contribute to product strategy and roadmap decisions. The Staff Engineer is expected to act as a technical partner to product leadership, helping balance customer value, business priorities, technical feasibility, and long-term maintainability.

Responsibilities:

• Design, develop, and maintain scalable backend services using Java and Spring Boot.
• Build and enhance frontend components using React, ensuring a seamless and performant user experience.
• Collaborate with product managers, designers, and other engineers to deliver high-quality, maintainable software solutions.
• Architect and implement RESTful APIs and integrations between backend and frontend systems.
• Leverage AWS services (e.g., EC2, S3, Lambda, RDS, CloudFront) for application deployment, monitoring, and scalability.
• Ensure application performance, security, and reliability across the stack.
• Participate in architecture reviews, provide mentorship to mid-level engineers, and drive best practices across the team.
• Define and drive the technical vision and architecture across multiple engineering teams.
• Lead the design of complex, cross-functional systems and ensure architectural consistency.
• Partner with Engineering Managers and Product Leadership to shape long-term technical strategy.
• Identify and resolve system-wide technical risks, bottlenecks, and scalability challenges.
• Drive engineering best practices, coding standards, and software quality initiatives.
• Lead technical design reviews and provide guidance for high-impact engineering decisions.
• Influence technology selection, platform evolution, and modernization initiatives.
• Balance short-term delivery goals with long-term platform sustainability.

Requirements:

• Strong hands-on experience with React and modern JavaScript/TypeScript frameworks.
• Proficiency in AWS services and cloud architecture (infrastructure, deployment, monitoring).
• Solid understanding of microservices architecture and distributed systems
• Experience with relational databases (e.g., PostgreSQL, MySQL) and ORM frameworks (e.g., Hibernate).
• Familiarity with CI/CD pipelines, containerization (Docker, Kubernetes), and infrastructure as code (Terraform or CloudFormation).
• Ability to translate complex business needs into technical solutions.
• 8–10+ years of professional software engineering experience, with strong hands-on expertise in Java and Spring Boot.
• Proven experience leading technical initiatives across multiple teams or products.
• Strong system design and software architecture experience for large-scale distributed systems.
• Demonstrated ability to influence engineering decisions without direct people management responsibility.
• Experience driving engineering standards and technical governance.
• Strong track record of mentoring senior engineers and growing technical capability within engineering organizations.

Nice to have:

• Experience with frontend performance optimization and state management (Redux, or similar).
• Familiarity with non-relational databases (MongoDB, DynamoDB).
• Knowledge of messaging systems (Kafka, RabbitMQ).
• Experience with monitoring and observability tools (CloudWatch, Prometheus, Grafana).
• Experience defining engineering roadmaps and platform strategy.
• Experience leading architecture modernization initiatives.
• Experience working in organizations with Staff/Principal Engineer career ladders.
• Contributions to engineering communities, open-source projects, or technical conferences are a plus.

We're looking for an engineer with hands-on experience building and evaluating GenAI services - from RAG and agentic reasoning systems to production-grade LLM deployments. You'll work closely with Frontend and Backend teams to bring AI agents into real products, with a strong focus on reliability, safety, and shipping working prototypes fast.

Hard Skills:

• Practical experience developing and evaluating GenAI services, including RAG systems, understanding of the "ReAct" (Reasoning + Acting) paradigm and Agentic RAG, LLM API integration, and prompt/context engineering, as well as training, fine-tuning, and deploying ML models in production environments.
• Knowledge of ML/GenAI frameworks: LangGraph or LangChain, PyTorch / TensorFlow, Hugging Face, OpenAI/Anthropic SDK.
• Practical commercial experience working with AI models via API (Gemini, Anthropic) and self-hosted models (Llama 3, Mistral, Mixtral), with an understanding of model differences based on functional/non-functional requirements (FR/NFR).
• Deep understanding of how LLMs interact with external APIs via Function Calling.
• Experience with vector databases, semantic search methods, and principles of database structuring and cleaning.
• Practical experience with at least one cloud platform (AWS, GCP, or Azure).
• Proficiency in Python and understanding of asynchronous programming.
• Understanding of the AI model lifecycle: monitoring, versioning, and quality evaluation (RAGAS, DeepEval), with hands-on experience using these tools.
• Experience with Guardrails: setting hard constraints on conversation topics and agent actions, filters that automatically strip personal data before sending requests to external LLMs, and the ability to build output filters that fact-check generated responses before they're displayed.
• Deterministic Logic Integration — running AI agents on strict schemas to prevent the model from "making things up."
• A plus: knowledge of automated testing approaches for evaluating responses across large datasets to measure hallucination rates before MVP launch.
• Knowledge of Human-in-the-loop mechanisms, ensuring agents cannot execute actions without final user verification.
• Ability to design memory systems that store context from a client's previous conversations and operations for personalization (Long-term Memory & User Context).

Soft Skills:

• Ability to clearly communicate complex technical concepts and mentor team members.
• Ability to quickly test and evaluate new libraries and approaches.
• Analytical problem solving - debugging complex "black boxes" and understanding why an agent behaves unpredictably.
• Focus on delivering a working prototype rather than a perfect research paper.
• Close collaboration with Frontend and Backend developers to seamlessly integrate AI agents into the required environment.

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

We're looking for a Senior Data Platform Engineer to architect and operate data infrastructure across the client's hybrid cloud (AWS + GCP). 

Our client is a fast-growing European fintech company in the business spend management space — corporate cards and related financial products — serving SME and mid-sized business customers across the EU and UK, in a regulated environment with GDPR compliance obligations. Engineering is organized into cross-functional squads, with platform/enabling teams providing shared tooling horizontally.

The client is currently in an AI transformation phase, transitioning to Agentic AI Development, and is seeking a Senior Data Platform Engineer to support this transformation. They run a hybrid cloud setup: AWS-first overall, with GCP (BigQuery as primary data warehouse) for data platform and analytics workloads. The Data Platform Engineer will set up and maintain the data infrastructure (data lakes, pipelines, IAM, observability, cost optimisation) that Data Engineers then use to operate on data. Work is expected to be a mix of existing codebase and new functionality.

Responsibilities:

• Architect and operate data infrastructure across hybrid cloud (AWS + GCP).
• Design data lakes; orchestrate pipelines (e.g. Airflow).
• Manage IAM/access management and cost optimisation.
• Maintain observability across the data platform.
• Work with both BigQuery and AWS data lake patterns (Athena, S3, Glue).
• Multiply the output and quality of the squad you join, and share patterns/practice beyond your immediate team so adoption compounds across the organisation.

• Embed directly into a client squad as a hands-on Individual Contributor (not a coaching/managerial role).

   

Requirements:

• Hybrid cloud: AWS and GCP.
• Data lake design.
• Orchestration, e.g. Airflow.
• IAM/access management.
• Cost optimisation.
• Observability.
• BigQuery and AWS data lake patterns (Athena, S3, Glue).
• Python.

Nice to have:

• Terraform.
• Familiarity with fintech-specific domains such as fraud/AML, transaction monitoring, and regulatory compliance. 

We are looking for a Lead DevOps / Observability Engineer to lead the migration of the client's observability stack from New Relic and Datadog to Grafana, using technologies such as Prometheus, Loki, and Tempo.

This is a hands-on role combining:
- DevOps & platform engineering - deploying and configuring the new observability stack using AWS, Kubernetes, and Terraform.
- Application instrumentation - modifying application code to add or adapt metrics, logs, and traces.
- Migration & collaboration - rebuilding existing dashboards and alerts in Grafana and working with multiple engineering teams to ensure full monitoring coverage.

We are looking for someone who is comfortable working across both infrastructure and application code and can independently drive a cross-team observability migration.

Responsibilities:

• Lead the migration of monitoring, alerting, and dashboards from New Relic and Datadog to Grafana.
• Design and implement the target observability architecture (metrics, logs, traces) and the infrastructure-as-code (Terraform) needed to support it.
• Audit existing New Relic and Datadog dashboards, alerts, and integrations to build a complete migration inventory and ensure feature/coverage parity in Grafana.
• Make application-level code changes across services to add, adjust, or replace instrumentation (metrics exporters, logging, tracing libraries) as needed for the new stack.
• Work with AWS infrastructure, including EKS, Kubernetes, and Docker, to deploy and operate the new observability tooling.
• Configure AWS networking and access as needed to support the observability platform (VPCs, security groups, IAM).
• Contribute to CI/CD pipelines and deployment automation using GitHub Actions to support the rollout.
• Collaborate with development, platform, and infrastructure teams to coordinate the cutover from New Relic/Datadog to Grafana with minimal disruption.
• Identify and remediate any security issues (secrets, keys, dependencies) encountered in the course of this work.
• Document the new observability architecture, migration procedures, and dashboard/alert mappings.
• Use AI-assisted development tools, including Codex, to improve engineering productivity and delivery speed.

Requirements: 

• Strong hands-on experience with Grafana, including dashboard design, alerting, and data source configuration (e.g. Prometheus, Loki, Tempo, or similar).
• Practical experience migrating away from commercial observability platforms such as New Relic and/or Datadog.
• Full-stack development experience — comfortable reading, modifying, and instrumenting application code across front-end and back-end services, not just infrastructure.
• Solid experience with AWS in production environments, including EKS and Kubernetes.
• Practical experience with Docker and containerized workloads.
• Strong Terraform and infrastructure-as-code skills.
• Experience with GitHub Actions or comparable CI/CD tools.
• Ability to work across multiple teams, services, and codebases to coordinate a cross-cutting migration.
• Fluency with Codex or comparable AI-assisted coding tools.

Nica to have:

• Prior experience running a similar New Relic/Datadog-to-Grafana (or equivalent) observability migration end to end.
• Grafana-specific certifications or demonstrated community contributions (plugins, dashboards, etc.).
• Experience with the broader Prometheus/Loki/Tempo (LGTM) ecosystem.
• AWS certification, such as AWS Solutions Architect Associate/Professional.
• Experience with RDS and other AWS data services.
• Prior contract or consulting experience with clearly defined deliverables.
• At least an Upper-Intermediate level of English 

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

N-iX is looking for a highly skilled Senior System Analyst to join the project aimed at modernizing and developing the client solutions. 

Our client is one of the largest banks in Ukraine, with its headquarters in the EU. They specialize in bank services for businesses and individuals in Ukraine and Europe.

Responsibilities:

• Gather, analyze, and document business requirements for different software systems 
• Write technical documentation (functional and non-functional requirements) and determine development priorities 
• Define, elaborate, and document architectural solutions, design data storage structures, and determine integration points with external/internal systems 
• Perform post-deployment control of new IT system versions 
• Develop specifications, user stories, and business process documentation
• Identify incidents in information systems 
• Train, consult, and support employees involved in preparing development requirements 

• Support project delivery by monitoring progress and assisting in issue resolution

   

Requirements:

• Proven experience as a System/Business Analyst or similar role
• Experience in formalizing software requirements and setting tasks for developers 
• Proficiency with relational (SQL queries, DB structures, transactions, indexes) and non-relational databases 
• Knowledge of non-functional requirement types 
• Knowledge of web technologies, understanding of the strengths and weaknesses of integration protocols (HTTP, SOAP, REST). Experience with SOAP/REST web services and JSON/XML formats 
• Experience with tools such as Jira, GIt, Confluence, or similar
• Proficiency in BPMN and UML modeling languages (Deployment-, Component-, Use Case-, Sequence diagrams) 
• Knowledge of application authentication and authorization methods 
• Understanding of software component interaction patterns 
• Analytical mindset with problem-solving abilities

• Bachelor’s degree in Business, IT, or related field

   

Nice to Have:

• Practical experience in banking or financial services for enterprise clients

• Experience in banking, financials or insurance domain

   

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

We are looking for a Senior PHP Full Stack Engineer with React to join our team!

Our client is transforming how leading companies search, analyze, and use patent data through an all-in-one, AI-powered SaaS platform that supports drafting, prior art analysis, collaboration, and project management. The role sits within a multidisciplinary team of IP software specialists, patent data professionals, and patent attorneys, focused on deep-cleaning and organizing global patent data to deliver accurate insights and trend visualizations. The Engineer will be responsible for developing, maintaining, and evolving key areas of the website and related user-facing products. 

Responsibilities:

• Design, build, and maintain the front-end interface for product delivery areas of the client application site, as agreed from time to time with product stakeholders, product designers, and the Technical Program Manager.
• Initially focusing on resolving known and documented bugs across existing products before contributing to ongoing enhancements and new feature development.
• Implement responsive layouts and ensure cross-browser/device compatibility
• Deliver clean, intuitive UI/UX by working against a ticket-based backlog with direction and, as projects evolve, collaborating more directly with product stakeholders.
• Work with external developers and designers to ensure consistent branding, performance, and technical quality
• Ensure accessibility best practices (WCAG) across relevant areas of the site
• Optimize site performance through modern tooling, bundling, and code quality improvements
• Build and maintain additional sections of the client website as needed
• Develop and manage analytics and testing frameworks, including Google Analytics, event tracking, and A/B testing capability
• Provide basic database or API integration support, working alongside the back-end engineering team where appropriate
• Assist in documentation of front-end components, design patterns, and development processes
• Contribute to continuous improvement of development workflows, version control practices, and release processes
• Write and maintain automated tests including unit, integration, and end-to-end (E2E) tests to ensure application quality and reliability.

Requirements:

• 5+ years of experience working in standalone roles responsible for the development and maintenance of web interfaces
• Strong knowledge of the following technical areas: PHP, JavaScript, React
• Experience with D3, Azure, XML & JSON data formats
• Ability to produce scalable, maintainable solutions
• Strong time-management skills with the ability to handle multiple projects concurrently
• A proactive, positive approach to delivering high-quality work
• English level - at least Upper-Intermediate

Nice to have:

• .NET Framework 4.6 is a big plus
• MySQL or SQL Server experience
• Experience setting up A/B testing or similar experimentation frameworks
• Exposure to modern AI-powered development tools and workflows (e.g., code assistants, automated testing, or AI-driven UI optimization)

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

N-iX  is looking for an experienced Senior Data Scientist with a strong focus on AI Engineering. The role involves designing and delivering production-ready AI solutions for the insurance industry, with a particular emphasis on Agentic AI, LLMs, RAG pipelines, and Computer Vision.

Key Responsibilities:

• Design and develop autonomous AI agent systems for the insurance domain
• Build production-ready AI solutions using:
  • Multi-Agent Systems
  • Large Language Models (LLMs)
  • Retrieval-Augmented Generation (RAG)
  • Computer Vision
• Research, evaluate, and implement state-of-the-art AI technologies
• Develop scalable AI products for international markets
• Collaborate with a team of Data Scientists and AI Engineers
• Take AI solutions from architecture and proof of concept through production deployment
• Participate in building proprietary AI models for the insurance industry

Required Skills:

• 5+ years of commercial experience as a Data Scientist / AI Engineer
• Strong Python development skills
• Hands-on experience with:
  • Machine Learning
  • Deep Learning
  • Generative AI
  • LLMs
  • RAG architectures
  • AI Agent frameworks
• Experience building production AI systems
• Solid software engineering background
• Experience with data analysis and AI product development
• Degree in Computer Science/Data Science/Mathematics/Physics/Engineering or equivalent technical background
• Upper-intermediate+ English level 
• Strong analytical thinking, proactive mindset
• Ability to design scalable AI solutions
• Ability to explain complex technical concepts
• Independent and structured way of working
• Team player

Nice to Have:

• Experience within the insurance industry
• German or Spanish language skills

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

* benefits package is not applicable for freelancers

About the Client

Our client is a leading global healthcare organization, driving innovation in pharmaceuticals, biotechnology, and patient-centric solutions.

We develop advanced data and analytics solutions that help global organizations turn complex data into intuitive digital tools, enabling teams to make informed decisions in their daily operations and long-term strategy. Our projects span modern operational applications, interactive dashboards, and advanced analytics platforms designed to deliver actionable insights across multiple business domains.
 

About the Role

We are seeking an experienced Business Analyst / Business Systems Analyst to support reporting and analytics initiatives within a global pharmaceutical organization.

The successful candidate will act as a bridge between business stakeholders and technical teams, helping transform business challenges into actionable reporting and analytics solutions. The role requires strong analytical thinking, experience gathering and documenting requirements, and a solid understanding of modern reporting platforms and data-driven decision-making.

The specialist will work closely with business users, Power BI developers, and data engineers to define requirements, design reporting solutions, validate concepts, and ensure delivered solutions address real business needs.
 

Key Responsibilities

• Collaborate closely with cross-functional teams, including business stakeholders, Power BI developers, and data engineers, to understand business objectives and identify opportunities for reporting, analytics, and process improvement.
• Conduct thorough requirements analysis for reporting and analytics initiatives, including gathering, documenting, and validating business and functional requirements to support solution design and development.
• Create and maintain comprehensive documentation, including user stories, functional specifications, business requirements, process flows, reporting requirements, and acceptance criteria.
• Define and document KPIs, metrics, business rules, data requirements, and reporting logic to ensure solutions effectively address business needs.
• Collaborate with Power BI and Foundry engineering teams to design and deliver reporting and analytics solutions that align with business objectives.
• Support solution validation and user acceptance testing (UAT), ensuring delivered reports, dashboards, and analytical solutions meet business requirements and provide meaningful insights to end users.
• Contribute to the continuous improvement of reporting, analytics, and decision-support capabilities across the organization.

Required Qualifications

• 4+ years of experience as a Business Analyst or Business Systems Analyst
• Experience working on reporting, analytics, BI, or data-focused projects
• Good understanding of Power BI capabilities and experience defining requirements for Power BI reporting and dashboard solutions.
• Strong requirements gathering and documentation skills
• Experience creating user stories, process flows, functional specifications, and acceptance criteria
• Strong analytical and problem-solving skills
• Ability to communicate effectively with both business and technical stakeholders
• Experience working in international and cross-functional environments

Nice to have

• Experience working with enterprise data platforms such as Palantir Foundry.
• Hands-on experience with Power BI report development, dashboard creation, or self-service analytics.

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

N-iX is looking for an experienced, proactive, and ambitious Senior Android Engineer to join our team and contribute to the development in Lviv Office.

Main Responsibilities:

• Design, develop, and maintain a high-quality native Android application
• Take ownership of features throughout the entire development lifecycle—from requirements analysis and technical design to delivery and production support
• Collaborate closely with UX/UI, QA, iOS, Product Management, Product Owners, and other engineering teams to align on requirements and specifications
• Understand existing application workflows, improve them where necessary, and support legacy functionality
• Act as a Subject Matter Expert in Android application development and maintenance
• Collaborate with the Mobile Architect and the development team on technical decisions, application architecture, roadmaps, and new features
• Investigate and resolve complex technical and production issues
• Conduct code reviews, promote engineering best practices, and share knowledge with other team members
• Mentor less-experienced developers and support their professional growth
• Analyze requirements, provide estimates, identify technical risks, and propose appropriate solutions
• Contribute to the development of simple, modular, maintainable, observable, and well-tested systems that can evolve over time
• Help improve development processes, CI/CD pipelines, application quality, performance, and release stability

Role Requirements:

• 6+ years of professional Android development experience
• Strong knowledge of Kotlin and practical experience with Java
• Strong knowledge of Kotlin Coroutines, Flows, asynchronous programming, and concurrency
• Experience with modern Android SDKs, Android Jetpack components, application lifecycle, and Material Design
• Experience with Jetpack Compose and/or XML-based UI development
• Strong understanding of Android application architecture, including MVVM, MVP, and Clean Architecture principles
• Good knowledge of SOLID principles, software design patterns, modularization, and testable application design
• Experience with dependency injection frameworks such as Koin, Hilt, or Dagger
• Hands-on experience with Bluetooth Low Energy, including BLE/GATT communication, connectivity, and troubleshooting
• Experience with networking and local data persistence, such as REST APIs, OkHttp/Retrofit, Room, or similar technologies
• Strong understanding of multithreading, memory management, caching, battery consumption, and mobile performance optimization
• Experience with Android profiling, debugging, crash analysis, and production monitoring tools
• Experience with unit, integration, and automated UI testing
• Experience with Git, code review practices, CI/CD pipelines, and Android application release processes
• Ability to break complex problems into smaller, loosely coupled, maintainable, and testable components
• Experience working in a Scrum environment and a solid understanding of Agile and Lean principles
• Upper-Intermediate or higher English proficiency
• Visiting office in Lviv 

Nice to Have:

• Experience with VoIP, real-time audio, or communication applications
• Experience with connected devices and custom communication protocols
• Experience with OTA firmware update flows
• Experience with JNI, Android NDK, or C/C++ integration
• Experience building AI-powered mobile features, integrating AI services, or working with on-device machine learning
• Experience publishing and managing applications through Google Play Console

The Ideal Candidate:

• Demonstrates a strong sense of ownership and takes responsibility for delivered solutions
• Has an Agile mindset and works effectively as part of a cross-functional team
• Is pragmatic and can find the right balance between an ideal technical solution, delivery timelines, and actual product needs
• Can independently analyze, plan, and estimate requirements
• Proactively identifies technical risks and proposes practical solutions
• Communicates clearly and constructively with both technical and non-technical stakeholders
• Is comfortable sharing knowledge, mentoring colleagues, and receiving feedback

We offer*:

• 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

About the client

Our client is a leading European online car marketplace, connecting car buyers and sellers across the continent. The platform serves over 30 million monthly users and operates across 18 countries, making it one of the largest and most trusted digital marketplaces for vehicles in Europe.

About the role

As a Senior Data Scientist, you will be a key contributor within the client's global Data Science organization, shaping the AI and machine learning systems that sit at the core of marketplace platforms across Europe and Canada. You will design, build, and operate machine learning and GenAI systems that run in production and matter to the business — working on complex, ambiguous problems, exercising strong technical judgment, and taking responsibility for outcomes, not just models.

While this is a hands-on role, you will also influence technical direction, raise the bar for engineering practices, and enable other data scientists and engineers to succeed.

Responsibilities:

• Own ML and GenAI systems end-to-end in production, including problem framing, system design, deployment, monitoring, and continuous improvement.
• Make sound architectural and methodological decisions for ML systems on AWS, balancing robustness, observability, cost, and long-term maintainability.
• Partner closely with Product, Engineering, and Business leaders to turn ambiguous problems into ML-enabled product solutions with clear outcomes.
• Operate and evolve ML systems deployed across multiple countries and markets, accounting for differences in data distributions, regulations, and constraints.
• Mentor other data scientists through hands-on technical guidance, design reviews, and shared ownership of systems.
• Raise the bar for engineering practices across the Data Science organization and influence technical direction beyond your own projects.

Requirements:

• 5+ years of experience building and owning production ML systems end-to-end in a real-world environment.
• Advanced degree in Computer Science, Engineering, Mathematics, or a comparable field.
• Strong hands-on expertise in Python and modern ML frameworks, with the ability to ship, operate, and evolve ML systems in production.
• Solid experience with AWS and MLOps practices, including deployment, monitoring, and operating ML systems at scale.
• Practical experience applying GenAI / LLMs in applied or production contexts, with a clear understanding of trade-offs and limitations.
• Ability to influence technical decisions through clear judgment and collaboration, not formal authority.
• Experience supporting and guiding more junior data scientists through hands-on collaboration, code reviews, and technical feedback.
• Strong sense of ownership and accountability for outcomes, with a pragmatic approach to trade-offs and delivery.
• Excellent verbal and written English skills.

Our customer is reinventing credit to make it more honest and customer-friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.

As a Lead Python Engineer, you will be part of a team that develops solutions responsible for managing critical services essential to the success and sustainability of the organization. In simple terms, the team builds and supports the systems that deliver transactional communications to customers via email, SMS, and push notifications. These services require strong attention to detail, proactive maintenance, and quick response times to ensure reliable and seamless operations.

Requirements:

· You have 5+ years of experience designing, developing and launching backend systems at scale using Python; Kotlin(preferred)/Java - must-have. 

· You have a track record of developing highly available distributed systems using technologies like AWS, MySQL and Kubernetes. 

· You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. You write high quality code that is easily understood and used by others. 

· You are proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do so safely. 

· You have strong verbal and written communication skills that support effective collaboration with our global engineering team.

N-iX Game is in search of a creative and motivated UI/UX designer to help our customers build the ideal product.

Senior UI/UX Designer responsibilities include searching for optimal solutions, designing UI layouts with a high level of graphical detail, designing UI animations, and supporting developers with the implementation of designed UI in game engines. So, knowledge about the game development tech processes will be a huge plus. 
In this position, we expect you to innovate and create modern interfaces using the most recent trends.

Responsibilities:

• Design mockups and prototypes that clearly demonstrate UI interaction models
• Design graphical assets such as icons, logos, and other elements that can be used in the game UI
• Create a friendly user experience, identify and troubleshoot UX problems 
• Collaborate with a team of engineers and designers in the implementation of UI components and assets

• Present design solutions to the customer and conduct layout adjustments based on feedback

   

Requirements:

• Proven work experience as a Game UI/UX Designer or similar role
• The portfolio must contain PC/console or mobile game UI designs 
• Fluency in Figma software
• Fluency with graphic design tools, most notably the Adobe pack (Photoshop, Illustrator)
• UI animation and general motion graphic design skills (ability to work in Adobe After Effects) are nice to have, but not mandatory
• Strong communication skills to collaborate with various stakeholders
• Ability to work productively and follow commitments

• English: Upper Intermediate

   

Good to have:

• Experience in preparing and implementing UI in Unity/Unreal Engine
• Ability to create smooth and pleasant 2D animations

N-iX warmly welcomes an experienced Senior Full Stack .Net Engineer to join our talented team.  

Our client brings extensive experience to EHR implementation and workflow redesign to improve clinical care. The company evolved as clinical needs and technology became more sophisticated, and with that, a greater demand for the ability to move health information efficiently and effectively. Our team provides unmatched expertise in interoperability, health information exchange and Direct services. 

Responsibilities:

• Write application, service, and system code following SES secure coding guidelines.
• Code, test, and troubleshoot applications and services using appropriate technologies and tools.
• Maintain and enhance existing applications by modifying program specifications, designing detailed programming logic, and implementing approved changes.
• Translate logical system and application specifications into physical system and application design
• Evaluate complex interdependencies between applications and services to ensure that changes in one do not cause unintended effects in others
• Write and execute unit tests; contribute to automated testing efforts to ensure software quality.
• Assess and implement improvements to processing efficiency within application systems. Analyze performance of applications and take action to correct deficiencies.
• Contribute to the development and maintenance of CI/CD pipelines to enable efficient, reliable, and secure build, test, and deployment workflows.
• Design infrastructure using Terraform as Infrastructure as Code (IaC), ensuring scalability, repeatability, and version control of environment configurations.
• Write and maintain comprehensive application and system documentation.
• Collaborate with team members and users to gather requirements, handle change requests, and develop effective solutions.
• Help define user stories and develop detailed plans to guide the team’s work.
• Participate in Agile development processes, contributing to sprints and collaborating with team members.
• Provide input during planning sessions and support team goals.
• Actively learn and apply new technologies to enhance user experience and improve productivity.

• Mentor junior members of the development team.

   

Requirements:    

• 7+ years of commercial experience developing applications in a Microsoft, .Net, or web services environment.
• 5+ years of hands-on experience developing solutions using .Net technologies and frameworks, particularly Dapper, Entity Framework, or similar ORM frameworks.
• 5+ years of experience with C#.
• 2+ years of experience with front-end technologies such as React, jQuery, jQuery UI, and AJAX.
• 3+ years of experience working with AWS (e.g., S3, Lambda, RDS, DynamoDB, SQS, OpenSearch). Experience with Azure or other cloud providers is a plus.
• Experience with relational databases (e.g., PostgreSQL) and exposure to NoSQL databases.
• Familiarity with continuous integration and delivery (CI/CD) pipelines and tools (e.g., GitHub Actions, Jenkins, GitLab CI, or AWS CodePipeline).
• Hands-on experience using Terraform for Infrastructure as Code to manage cloud resources in AWS.
• Experience using Visual Studio and GitHub for development and version control.
• Experience with front-end technologies such as React, jQuery, jQuery UI, and AJAX.
• Experience interpreting software specifications and participating in the design, development, and testing process.
• Experience developing high-throughput transactional systems, handling concurrency in distributed applications.
• Hands on experience designing cloud architectures, microservices, or event-driven architectures and distributed systems
• Ability to quickly learn and adapt to SES environment and clinical data exchange standards.
• Excellent problem-solving abilities and a willingness to continuously learn.
• Strong organizational skills with the ability to prioritize tasks, meet deadlines, multitask, and pay close attention to detail.

• Strong verbal and written communication skills, with the ability to ask insightful questions and actively listen.

   

Would be a plus:

• HIPAA Awareness
• AWS Certified Solutions Architect - Associate or others
• Familiarity with encryption, digital signatures and Microsoft Crypto API
• Python knowledge
• Familiarity with healthcare data integration technologies (e.g., HL7, JSON, XML), and an understanding of interoperability standards and SQL/database principles.