Jobs C# / .NET

N-iX is looking for a Senior .Net Engineer for one of our clients.
As a .NET Engineer you will drive the technical modernization of a large-scale system from .NET Framework 4.8 to .NET 8. Your work will span the full backend stack — replacing Windows-only dependencies, refactoring legacy patterns, migrating data access to EF Core, and ensuring every service is portable, containerizable, and ready for AWS cloud deployment. You will collaborate closely with DevOps and database engineers as part of a cross-functional Agile team delivering a phased, production-safe migration.
 

Responsibilities:

• Migrate a .NET Framework 4.8 application to .NET 8.
• Migrate a large database-first Entity Framework 6 model to EF Core 8 across multiple bounded contexts, one domain at a time.
• Identify and replace Windows-only libraries and assembly references that prevent building and running on Linux.
• Establish unit test coverage measurement and enforce quality gates as part of the migration pipeline.
• Collaborate with the DevOps engineer on Dockerfile authoring, environment configuration, and secrets injection.
• Participate in Agile/SCRUM processes, conduct code reviews, and document migration decisions.

Must-Have Qualifications:

• 5+ years of C# and .NET backend development with strong knowledge of ASP.NET and ASP.NET Core.
• Proven, hands-on experience migrating .NET Framework applications to .NET Core / .NET 8 in production.
• Solid experience with Entity Framework Core.
• Solid knowledge of DDD, CQRS, and repository patterns in layered .NET architectures.
• Familiarity with Docker multi-stage builds and Linux container fundamentals for .NET applications.
• Proficient with xUnit and Moq for unit testing; comfortable with container-wired test setups.
• Experience with AWS ECS / Fargate and ECR for deploying containerized .NET applications.
• Familiarity with MassTransit and RabbitMQ or Amazon MQ for event-driven messaging.
• Experience with Hangfire or similar background job processing frameworks.
• Proficient in Git and familiar with Agile/SCRUM team processes.

Nice-to-Have Skills:

• Experience building CI/CD pipelines for .NET projects.
• Familiarity with micro-frontend architecture and Angular-based single-page applications.
• Experience with automated code coverage tooling and enforcing coverage thresholds in CI.
• Experience with performance optimization and scalable enterprise backend systems.

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

About Us:

Entravel is a member’s club for discounted luxury travel and white-label hotel platform provider focusing on the crypto industry, backed by VCs and prominent European founders. Our hotel product is incredibly strong; we offer more than one million properties, and our rates are amongst the lowest in the world. In fact, on most 5* hotels you won’t find a platform with lower rates than Entravel.

What We’re Looking For:

We are actively seeking a talented and experienced Senior Backend Developer specializing in C# to join our dynamic team. As a key member of our development team, you will help architect and implement robust backend solutions that power our innovative hotel booking platform.

Core Skills:

• 5+ years of professional experience with C# and .NET Core (3.1–8).
• Strong understanding of asynchronous programming, LINQ, and dependency injection.

• Proven experience building scalable, distributed systems and microservices.

   

Databases:

• Proficiency with PostgreSQL (schema design, query optimization, migrations).
• Experience with MongoDB for document-oriented data models.
• Working knowledge of Redis for caching and distributed state management.

Messaging & Event Streaming:

• Hands-on experience with RabbitMQ for message queuing.
• Familiarity with Kafka for event-driven architectures and streaming data pipelines.

Monitoring & Observability:

• Experience integrating and using Kibana, Prometheus, and Grafana for logging, metrics, and alerting.

DevOps & Cloud:

• Strong understanding of Docker containerization and image optimization.
• Practical experience deploying and managing services on Google Cloud Platform (GCP) (e.g., GKE, Cloud Run, Pub/Sub, Cloud SQL).

General Engineering Practices:

• Deep knowledge of RESTful APIs and gRPC service design.
• Solid grasp of CI/CD pipelines and Git-based workflows.
• Commitment to clean architecture, unit testing, and code quality.
• Ability to mentor engineers and contribute to architectural decisions.

Soft Skills:

• Excellent problem-solving and analytical thinking abilities.
• Strong communication skills, able to collaborate effectively across teams in both English and Ukrainian.
• High sense of ownership, accountability, and responsibility for deliverables and system reliability.

Nice to Have:

• Experience with IaC tools (Terraform, Pulumi).
• Knowledge of performance profiling and application security best practices.
• Familiarity with domain-driven design (DDD) and event sourcing.

We offer:

• Flexible Start: Set your own comfortable working hours that accommodate your individual needs.
• Competitive Salary: High standards of remuneration reflecting your contribution and skills.
• Vacation: Enjoy 22 days of vacation for full rejuvenation and life enjoyment.
• Sick Leave: Ensure your health with 15 days of sick leave per year.
• Special Leave Cases: Support for significant life events such as weddings, childbirth, or the loss of a close family member.

PLEASE NOTE that we are searching for candidates who are located in Lviv and are able to visit office in Lviv.

About us:

EveryMatrix is a leading B2B SaaS provider delivering iGaming software, content and services. We provide casino, sports betting, platform and payments, and affiliate management to 200 customers worldwide.

But that's not all! We're not just about numbers, we're about people. With a team of over 1000 passionate individuals spread across twelve countries in Europe, Asia, and the US, we're all united by our love for innovation and teamwork.

EveryMatrix is a member of the World Lottery Association (WLA) and European Lotteries Association. In September 2023 it became the first iGaming supplier to receive WLA Safer Gambling Certification. EveryMatrix is proud of its commitment to safer gambling and player protection whilst producing market leading gaming solutions.

Join us on this exciting journey as we continue to redefine the iGaming landscape, one groundbreaking solution at a time.
 

We are looking for a passionate and dedicated Junior .NET Developer to join our team in Lviv!

What You'll get to do:

• Hands-on development and integration of the evolving business functionality on the core part of the platform with other office locations.
• Understanding business requirements and their mapping to the given software framework.
• Discussing business requirements along with the Team Leader, Business Analysts, Project Managers, and other parties involved.
• Adhering to the Agile methodology and design principles of the project.
• Working in a test-driven, object-oriented environment.
• Participating in the design and implementation of the new architecture of our next-generation platform.
• Offering the QA and support team assistance whenever issues arise.
• Adhere to best practice development standards (such as continuous integration and deployment).
• Ability to understand the complex technical architecture.
• Ability to manage multiple priorities, commitments and tasks.

What You need to know:

• Knowledge of C#, NET Framework 4.8 or .NET 5+, OOP and OOD concepts;
• Understanding of service-oriented architecture;
• Web development understanding: ASP.NET Core, ASP.NET Web API;
• Knowledge of SQL syntax;
• Intermediate or upper English level.

Nice to have:

• Technical education is a plus but not required;
• Experience with ADO.NET or any ORM like Dapper or Entity Framework;
• Experience with LINQ;
• Experience with MySQL and/or PostgreSQL;
• Experience with Docker;
• Experience with version control system;
• Knowledge of CI/CD practices.

Here's what we offer:

• Start with 22 days of annual leave, with 2 additional days added each year, up to 32 days by your fifth year with us.
• 3 sick leave days per year, no doctor's note required; 30 medical leave days with medical allowance
• Hybrid work schedule is available after the first three months of employment, with up to 50 days of work from home per year.
• Benefit from two Free Fridays each year, limited to one per quarter.
• Daily catered lunch or monthly lunch allowance. 
• Private Medical Subscription. 
• Access online learning platforms like Udemy for Business, LinkedIn Learning or O’Reilly, and a budget for external training.
• Gym allowance.
• Corporate English lessons.
• Support for New Parents:
• 21 weeks of paid maternity leave, with the flexibility to work from home full-time until your child turns 1 year old.
• 4 weeks of paternity leave, plus the flexibility to work from home full-time until your child is 13 weeks old.

Our office perks include on-site massages and frequent team-building activities in various locations.

At EveryMatrix, we're committed to creating a supportive and inclusive workplace where you can thrive both personally and professionally. Come join us and experience the difference!

About the Role

We are looking for a Senior Software Engineer with strong .NET expertise and hands-on experience working with AI/ML-powered solutions. This role is ideal for an engineer who enjoys building enterprise-grade applications while leveraging modern AI technologies to solve complex business challenges.
 

You will collaborate with cross-functional teams to design, develop, and integrate AI-driven capabilities into scalable software systems built within the Microsoft ecosystem.
 

Responsibilities:

• Design, develop, and maintain backend services and enterprise applications using .NET / C#.
• Integrate AI/ML capabilities into existing software products and business workflows.
• Build and support data processing pipelines, AI-enabled features, and intelligent automation solutions.
• Collaborate with engineering teams to design scalable, secure, and maintainable architectures.
• Work with cloud-based services and enterprise data platforms.
• Support the deployment, monitoring, and continuous improvement of AI-powered solutions.
• Ensure high standards of software quality, performance, security, and reliability.
• Participate in technical discussions, architecture reviews, and solution design activities.
   

Requirements:

• 5+ years of experience in software engineering.
• Strong proficiency in .NET / C#.
• Experience working within the Microsoft technology ecosystem.
• Hands-on experience with AI/ML solutions, including model integration, LLM-based applications, intelligent automation, or machine learning workflows.
• Experience designing and developing scalable backend systems.
• Understanding of cloud platforms and modern software architecture principles.
• Experience integrating AI functionality into production applications.
• Strong problem-solving and communication skills.
• English level: Upper-Intermediate

We offer:

• Paid vacation and sick leave
• Flexible working schedule
• Compensation for educational and sports activities
• Professional growth opportunities
• Awesome team events and activities

The Customer:

Our Client provides comprehensive operational support and a range of expert services to the world’s leading insurers, brokers, fleet managers and automotive manufacturers. Our 3,300 employees across ten countries deliver exceptional standards on a large scale for over 1,200 clients. We help the global insurance market to handle millions of claims each year in the most cost-effective and efficient ways possible.

The Client is embarking on an exciting and challenging transformation program, and our software solutions are a driving force behind this strategy, using cloud computing and leading-edge design patterns. 

The Role:

This is a great opportunity for an experienced Senior Full Stack Developer to join our super-motivated Software Development team, being part of one of our existing scrum teams. Each agile team includes technical leadership, development, architecture, quality, product and project management roles. We are looking for a Senior Full Stack Developer comfortable with C# and Angular, with a proven history of building high-performance apps.

Key Responsibilities:

• Provide knowledge/helping/mentoring to other developers – team philosophy is important for us!
• Work on business requests and development improvements – proactivity is appreciated!
• Develop, test, document, and maintain our application back end.
• Build scalable and reusable code.
• Provide realistic estimates for requests, fixes, and new ideas.
• Create unit tests.
• Write clear and precise technical documentation.
• Manage realistic work deadlines.
• Participate in all the Scrum ceremonies and be part of the team performance and continuous improvement.

Knowledge and Experience:

• 5+ years of experience of Microsoft development stack including; .NET C#, SQL Server T-SQL.
• Important: ASP.NET, SQL Server, HTML, CSS, JavaScript, Angular, Git, excellent verbal and written communication skills in English.
• Azure, .NET core, SOLID principles, Microservices architecture, Design principles, Angular, Jira.
• Ideally, you will have experience working with Scrum methodology in a variety of contexts; different team sizes, organizational cultures, distributed development, etc.
• A track record of previous experience, including training, conferences, user groups, and self-study, is desirable.

Personal Attributes:

• Self-organising problem solver.
• Able to think outside the box (open thinking).
• Strong ability to work effectively in a team. Collaborating, motivating and energizing others (Team player).
• Encourage and drive others to deliver high-quality, cutting-edge software.
• You will have attention to detail and have a proactive ethos.
• Always looking for continuous improvement.
• Excellent verbal and written communication skills, in English.

We are looking for a product-minded Middle Full-Stack .NET Developer to join the team working on Zoneee — a live SaaS product for chiropractic clinics management. The platform helps clinics manage appointments, patients, memberships, payments, visit notes, staff schedules, billing and many more.

About the Role

We are looking for a developer who is confident with both backend and frontend development, understands real-world SaaS complexity, and is comfortable using AI tools as part of their daily engineering workflow.

You will work on new product features, improve existing modules, integrate third-party services, fix issues, and help us accelerate product development using AI-native approaches.

Required Skills

• 3+ years of commercial software development experience.
• Solid experience with C# / .NET / ASP.NET Core.
• Experience with SQL Server.
• Experience with React.js and TypeScript.
• Understanding of REST APIs and client-server architecture.
• Good understanding of frontend state management, forms, validation, and API communication.
• Ability to work with an existing codebase and improve it without unnecessary rewrites.
• Basic understanding of cloud environments, preferably Microsoft Azure.
• Intermediate+ English reading/writing skills for technical communication.

Tech Stack

Backend:

• .NET / ASP.NET Core
• C#
• Dapper
• SQL Server
• REST APIs
• Background jobs / scheduled processing
• Third-party integrations

Frontend:

• React.js
• TypeScript
• HTML / CSS
• Shadcn, CoreUI
• API client integration

Infrastructure:

• Microsoft Azure
• CI/CD pipelines

What We Offer

• Work on successful, growing SaaS product.
• Long-term cooperation.
• Modern .NET + React stack.
• Opportunity to influence product and technical decisions.
• Practical use of AI-assisted development workflows.
• Direct communication with decision-makers.
• Remote-friendly work environment.
• Room for professional growth.

GR8_TECH builds B2B iGaming platforms for operators who play to lead.

We deliver full-cycle, high-impact tech designed to scale — from seamless integrations and expert consulting to long-term operational support. Our platform powers millions of active players and drives real business growth. Call it what it is: the iGaming Platform for Champions.

With 1000+ GR8 people across locations and time zones, we don’t just ship technology — we help operators build success stories across brands, markets, and geos.

Our ambition drives us. Our people make it real.

If you’re a challenger in spirit and a champion in action — join us.

Why this role exists:
This role exists to design, develop, and maintain enterprise-level applications using C#, ASP.NET, and related technologies. The engineer participates in technical discussions and works with cross-functional teams to deliver scalable and reliable software solutions aligned with business requirements.

What you’ll drive:

Software architecture & development
— Design and implement scalable and efficient software architectures.
— Develop and maintain enterprise-level applications using C#, ASP.NET, and related technologies.
— Identify and resolve complex software issues and technical challenges.

Project delivery & collaboration
— Lead and manage software development projects, ensuring timely delivery and quality together with the Delivery Manager.
— Work closely with product management, design, and operations teams to align development with business goals.
— Communicate technical concepts and project updates to stakeholders.

System stability & ownership
— Participate in on-call rotations to support availability and stability of business-critical services.
— Maintain technical documentation for software development and system design.
— Contribute to technical discussions and propose solutions for system improvements.

What makes you a GR8 Fit:
Must-have
— Minimum 5 years of experience in a similar senior engineering role with a track record of leadership, strong technical skills, and successful project delivery.
— Deep hands-on expertise in C# and .NET (Core / .NET 6+).
— Strong understanding of async/await, multithreading, thread safety, memory management, and performance optimization.
— Experience designing and evolving high-load backend systems with strict latency and reliability requirements.
— Ability to identify and eliminate performance bottlenecks across CPU, memory, I/O, and database layers.
— Experience designing and operating microservice-based systems.
— Experience working with messaging systems and event-driven architectures.
— Experience working with relational and non-relational databases.
— Understanding of transactions, isolation levels, locking, concurrency, indexing strategies, and performance tuning.
— Experience working with containerized environments including Docker and Kubernetes.
— Understanding of CI/CD pipelines and automated delivery.
— Understanding of scalability, load balancing, auto-scaling, and disaster recovery.
— Understanding of production observability including logging, metrics, monitoring, and tracing.

Nice-to-have
— Experience with GoLang or Node.js.
— Experience with Microsoft Orleans.

Why you’ll love working here:
Benefits Cafeteria — annual budget you allocate to:
Sports • Medical • Mental health • Home office • Languages.

Work-life & support
— Paid maternity/paternity leave + monthly childcare allowance.
— 20+ vacation days, unlimited sick leave, emergency time off.
— Remote-first + tech support + coworking compensation.
— Team events (online/offline/offsite).
— Learning culture with internal courses + growth programs.

Our culture & core values:
GR8 Tech culture is how we win — through trust, ownership, and a growth mindset. We move fast, stay curious, and keep it real, with open feedback, room to experiment, and a team that’s got your back.

FUELLED BY TRUST: we’re open, honest, and have each other’s backs.
OWN YOUR GAME: we take initiative and own what we do.
ACCELER8: we move fast, focus smart, and keep it simple.
CHALLENGE ACCEPTED: we grow through challenges and stay curious.
BULLETPROOF: we’re resilient, ready, and always have a plan.

We are seeking a motivated and talented Freelance Professional to support our Product

Development team. This role offers a unique opportunity to contribute to a fast-paced,

innovative environment on a project basis. You will collaborate with experienced

professionals to develop and enhance our digital health products.

4+ years commercial experience with ASP.NET Core

3+ years commercial experience with Kendo UI

3+ years’ experience with Angular

3+ years’ experience with SQL

Strong technical and analytical skills

Upper Intermediate English

React is a plus

Senior .NET Developer / Technical Lead (WARSAW)

Location: Warsaw, Poland 
Type: Full-time, in-house (NO Remote)
Remote: No
Workplace: New advanced office in Warsaw
Salary: Up to $6,500/month equivalent, based on experience
Bonus: Performance-based bonuses linked to delivery and output

One of the largest logistics and storage companies in the region is looking for a Senior .NET Developer / Technical Lead to take ownership of a major technology project.

This is a hands-on lead role for someone with strong commercial experience who can join as the main technical person, work directly with the CEO and leadership team, build the core platform foundation, and later help grow the development team around it.

The project is focused on reducing dependency on legacy operational software by creating a modern, API-connected platform using a strong CRM/CMS-style foundation, with custom integrations where needed.

What you will do

• define the technical architecture
• build and configure the core platform foundation
• design and connect APIs between key systems
• integrate website, customer portal, mobile app, access control, payments, reporting, and notifications
• create clean documentation and development standards
• decide what should be built, bought, configured, or integrated
• help recruit and lead additional developers once the foundation is ready

What we need

• strong commercial experience with .NET / C#
• proven experience building or leading real business platforms
• good understanding of CRM, CMS, ERP, or operational systems
• experience with API architecture and third-party integrations
• database and cloud infrastructure knowledge
• strong security, permissions, and documentation mindset
• ability to work hands-on and deliver visible progress
• confidence working directly with senior leadership

What we offer

• full-time in-house role in Warsaw
• new advanced office environment
• direct cooperation with the CEO and leadership team
• long-term strategic technology project
• real ownership of technical direction and delivery
• opportunity to build and lead your own team over time
• salary up to $6,500/month
• performance-based bonuses linked to measurable output
• possible residency / work permit sponsorship for Ukrainian candidates where required

Who this suits

This role suits someone who wants real ownership and responsibility. You will not join a large existing development team or maintain someone else’s roadmap. You will be the first key technical lead on the project.

You will build the core, prove the architecture, connect the right systems, and help create the future technology infrastructure of a fast-growing logistics and storage company.

Experienced Microsoft.NET developer in building backend systems in Microsoft Azure. You will design and build services in a service oriented architecture.

Requirements:
 

• At least 3 years of experience designing and building APIs in ASP.NET (version 8.0 or higher)
• At least 3 years with Entity Framework Core (version 8.0 or higher)
• At least 3 years with Microsoft Azure
• At least 4 years with C#
• At least 4 years building unit and integration tests
• Knowledge of service oriented architecture principles
• Knowledge of integration patterns and principles
• Knowledge of OAuth / OpenID Connect security protocols
• Works according to SOLID principles
• At least 3 years with Azure DevOps and Git
• Understanding of UML activity diagrams and sequence diagrams

Nice to have:

• Azure Platform Services (App Service, Service Bus, Key Vault, Storage, SQL Database, AI Search)
• Azure DevOps YAML pipelines with PowerShell and Azure deployment services
• T-SQL (SQL Server)
• The IDesign Method

What We Offer:

• Transparent bonus payment system
• Competitive salary with regular compensation reviews
• Opportunity to bring your ideas to life and lead the entire process
• 40-hour workweek with flexible scheduling
• Paid vacation and sick leave benefits

Experienced Microsoft.NET developer in building backend systems in Microsoft Azure. You will design and build services in a service oriented architecture.

What We Seek:

• Proven experience in designing and building APIs in ASP.NET (version 8.0 or higher)
• Proven experience with Entity Framework Core (version 8.0 or higher)
• Proven experience with Microsoft Azure
• At least 8 years of professional experience with C#
• At least 8 years of experience in building unit and integration tests
• Knowledge of service-oriented architecture (SOA) principles
• Knowledge of integration patterns and principles
• Knowledge of OAuth and OpenID Connect security protocols
• Adheres to SOLID principles
• At least 7 years of experience with Azure DevOps and Git

• Understanding of UML activity diagrams and sequence diagram.

   

A plus when has:

• Proven knowledge of the following Azure Platform Services; App Service, Service Bus, Key Vault, Storage (blob- and table storage), SQL Database, AI Search
• Proven knowledge of Azure DevOps yaml pipelines in combination with powershell and Azure deployment services
• Proven knowledge of T-SQL (SQL Server)
• Proven knowledge of the IDesign Method

What We Offer:

• Transparent bonus payment system
• Competitive salary with regular compensation reviews
• Opportunity to bring your ideas to life and lead the entire process
• 40-hour workweek with flexible scheduling

• Paid vacation and sick leave benefits

   

Ідеально для тих, хто прагне:

• Проектувати, створювати та обслуговувати сервіси за допомогою .NET (C#);
• Розробляти та розвивати мікросервіси у production середовищі;
• Підтримувати існуючу функціональність та забезпечувати зворотню сумісність релізів;
• Працювати над основними частинами домену, такими як облікові записи, реєстрація, аутентифікація, гаманець та пов'язані з ними бізнес-можливості;
• Брати участь в аналізі завдань, декомпозиції та оцінці estimation;
• Надавати виконані завдання для тестування та співпрацювати з контролем якості під час фаз тестування;
• Створювати інтеграції за допомогою асинхронного зв'язку та шаблонів, керованих подіями;
• Працювати з реляційними базами даних, транзакційними потоками та оптимізацією продуктивності запитів;
• Виявляти вузькі місця у продуктивності та вносити покращення проектування системи;
• Брати участь у спостереженнях за сервісами (журнали, метрики, трасування, інформаційні панелі, моніторинг);
• Керувати конфігураціями розгортання та маніфестами в середовищах Kubernetes;
• Працювати в налаштуванні GitOps та брати участь у розгортанні та операційній власності;
• Співпрацювати з командами DevOps щодо змін, пов'язаних з інфраструктурою (включаючи робочі процеси Terraform);
• Приймати участь у ротації чергувань та обробки production інцидентів;
• Опрацьовувати технічний борг та пропонування покращень;
• Виконувати high-quality code reviews з акцентом на зручність обслуговування, продуктивність та узгодженість.

Досвід, який стане твоєю перевагою:

• 5+ років досвіду комерційної розробки backend-проектів з C# / .NET (6+), .NET Core / ASP.NET Core;
• Глибоке розуміння архітектури мікросервісів та розподілених систем;
• Досвід роботи з асинхронним зв'язком та event-driven архітектурою;
• Досвід роботи з брокерами повідомлень (Kafka або аналогічні);
• Глибокі знання реляційних баз даних (SQL, транзакції, індексація, налаштування продуктивності), PostgreSQL буде перевагою;
• Досвід роботи з інструментами ORM (наприклад, Entity Framework);
• Досвід написання модульних та інтеграційних тестів;
• Розуміння аутентифікації та авторизації (OAuth 2.0, OpenID Connect);
• Гарне розуміння принципів проектування програмного забезпечення (SOLID, розділення проблем, тестованість);
• Розуміння observability та моніторингу у production системах;
• Досвід усунення несправностей з продуктивністю та пам'яттю;
• Англійська - Upper Intermediate;
• Досвід роботи з Orleans, Redis буде перевагою;
• Досвід роботи з AWS, Kubernetes, Terraform буде перевагою;
• Досвід роботи з Grafana, Loki, Tempo буде перевагою.

Ми цінуємо:

• Хороші комунікативні навички;
• Багатозадачність, швидке виконання завдань;
• Вміння працювати в команді;
• Відповідальність.

Наші клієнти пропонують конкурентні переваги для підтримки вашого професійного та особистого зростання, зокрема:

• Орієнтація на здоров’я та добробут;
• Глобальне медичне страхування;
• Можливості для зростання;
• Програми бенефітів (компенсація спорту / стоматології / психолога тощо);
• Бонуси за досягнення результатів;
• Динамічне робоче середовище.

English version:

Perfect for those who aim to:

• Design, build, and maintain backend services using .NET (C#);
• Develop and evolve microservices in a production environment;
• Support existing functionality and ensure backward compatibility of releases;
• Work on core domain flows such as accounts, registration, authentication, wallet, and related business capabilities;
• Participate in task analysis, decomposition, and effort estimation;
• Deliver completed tasks for testing and collaborate with QA during test phases;
• Build integrations using asynchronous communication and event-driven patterns;
• Work with relational databases, transactional flows, and optimize query performance;
• Identify performance bottlenecks and contribute to system design improvements;
• Contribute to service observability (logs, metrics, traces, dashboards, monitoring);
• Manage deployment configurations and manifests in Kubernetes environments;
• Work in a GitOps setup and participate in deployment and operational ownership;
• Collaborate with DevOps teams on infrastructure-related changes (including Terraform workflows);
• Participate in on-call rotation and handle production incidents;
• Identify technical debt and propose improvements;
• Perform high-quality code reviews focusing on maintainability, performance, and consistency.

Experience you’ll need to bring:

• 5+ years of commercial backend development experience with C# / .NET (6+), .NET Core / ASP.NET Core;
• Solid understanding of microservices architecture and distributed systems;
• Experience with asynchronous communication and event-driven architectures;
• Experience with message brokers (Kafka or similar);
• Strong knowledge of relational databases (SQL, transactions, indexing, performance tuning), PostgreSQL will be a plus;
• Experience with ORM tools (e.g., Entity Framework);
• Experience writing Unit and Integration tests; 
• Understanding of authentication and authorization (OAuth 2.0, OpenID Connect);
• Good understanding of software design principles (SOLID, separation of concerns, testability);
• Understanding of observability and monitoring in production systems;
• Experience troubleshooting performance and memory issues;
• English - Upper Intermediate;
• Experience with Orleans, Redis will be a plus;
• Experience with AWS, Kubernetes, Terraform will be a plus;
• Experience with Grafana, Loki, Tempo will be a plus.

It's a perfect match if you have those personal features:

• Good communication skills;
• Multitasking, quick task execution;
• Good team player;
• Responsibility.

Our clients offer competitive benefits to support your professional and personal growth, including: 

• Health & Wellness Focus;
• Global Medical Coverage;
• Growth Opportunities;
• Benefits Programs (compensation for the gym/stomatology/psychological service & etc.);
• Performance-Driven Rewards;
• Dynamic Work Environment.

ScenAI Data Science Inc

We are a U.S.-based fintech startup operating in the investment and financial services space. Our distributed teams work across Poland, the United States, and Ireland, collaborating on technology-driven solutions related to stocks and investments.

Security, compliance, and the responsible handling of sensitive financial data are central to how we operate, as we build scalable products in a regulated environment.

General

❖ 4–10 years in automation engineering

❖ Strong C# and OOP expertise

❖ Experience with Windows UI Automation (UIA2/UIA3)

❖ Prior hands-on with Silk Test (mandatory)

❖ Experience automating DevExpress WinForms apps

Legacy Experience (Critical)

❖ Experience working on .NET Framework 3.5 / 4.x applications

❖ Automation in thick-client enterprise systems

❖ Handling unstable UI identifiers

❖ Working with limited documentation

Framework & Design

❖ Build frameworks from scratch

❖ Implement POM / Component Object Model

❖ Logging, retry policies, custom wait strategies

Initial contract duration: 9 months with the possibility of extension based on the skill set

Hourly remuneration: 28-35 usd/hour

Engagement: full time

Time zone: Poland

Working language: English

Please read carefully before applying:

The client is building a product in the bank/investment/brokerage systems niche, and their investors have strict security and compliance requirements, where every person will go through a background check.

Why Poland?

For background check — you must be a taxpayer in Poland for 2+ years.

We’re looking for a senior front-end developer to support our transition toward AI-driven development within the Microsoft ecosystem. This is primarily an advisory and code review role with selective hands-on support , project focused on improving code quality, establishing standards, and upskilling developers.

You will work with Power Platform developers who knows the front-end stack but do not code on JS/TS on a daily basis —your role is to elevate their front-end practices to production-grade standards.

What You’ll Do

• Review and improve front-end code (React, TypeScript, Fluent UI, HTML/CSS)
• Guide development of SPFx solutions, PCF controls, Power Pages components, and Code Apps on Power Platform
• Strong familiarity with Node.js-based front-end tooling (npm, build pipelines, bundlers)
• Define and enforce front-end standards, patterns, and reusable components
• Mentor developers through reviews, sessions, and workshops
• Advise on safe and effective use of AI-generated code
• Improve CI/CD, code quality, and review processes

Expected Outcomes

• Improved code quality and consistency across projects
• Clear front-end standards and review practices in place
• Developers able to deliver and maintain front-end solutions independently
• Reduced technical debt and rework

Requirements (Mandatory)

• 5+ years front-end development experience with senior-level responsibility
• Strong expertise in React, TypeScript, Fluent UI
• Understanding of the Microsoft stack (Azure, Microsoft 365, SharePoint)
• Strong experience with CI/CD pipelines (Azure DevOps, GitHub Actions or similar)
• Proven experience with accessibility standards (WCAG)
• Experience defining standards and improving engineering practices across teams
• Good mentoring, communication, and consulting skills

Nice to Have

• Experience with Microsoft Power Platform (PCF, Power Apps, Power Pages)
• Hands-on experience with SPFx (SharePoint Framework)

Engagement

• ~5-10 hours per week, flexible involvement expected. 
• Help the team establish delivery best practises and together define engagement plan
• Mix of async code reviews and scheduled advisory session

Project Description:

Luxoft, a DXC Technology Company, is a digital transformation services and software engineering firm providing bespoke IT solutions that drive business change. In financial services we deliver complex projects with highly skilled engineering talents. If you would like to help us build engineering solutions that make difference for our global financial industry clients, this may be your opportunity. We are looking for C# engineers with experience in scalable system designs, to join the team developing a firm-wide Risk platform for our client US multinational investment bank. Working in this project will let you:
- learn more about financial markets, products and risks.
- verify and grow your skills in global diverse team.

Responsibilities:

- Design and develop software components for Equity Risk Platform built on C# and C++
- Coordinate efforts with local developers and wider global team.
- Do scalability and performance optimizations.
- Manage the software development life cycle, from planning and prioritizing to testing and release.
- Review, test and debug team members' code
- Document development phases
- Identify and analyze user requirements.
- Selection of the most suitable solutions for creating a product
- Compliance with deadlines

Mandatory Skills Description:

- 4+ years of hands-on experience using .Net technology stack and providing high-quality solutions.
- Solid core .Net, multithreading, concurrency, design patterns.
- Experience with SQL
- Ability to apply modern security protocols and best practices.
- Good delegation and time management skills
- Problem-solving abilities
- The ability to prove their point of view to the customer.
 

Nice-to-Have Skills Description:

- C++ knowledge
- Investment Banking experience

Languages:

English: B2 Upper Intermediate