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Join CoreWillSoft GmbH and help build Windows-based software that protects critical facilities and infrastructure. We develop innovative physical security and access control solutions, integrating building automation, IoT devices, and high-security hardware. 

You’ll join an Agile, international team distributed across locations, with our headquarters in Bonn, Germany. We own the full product lifecycle — from discovery and implementation to release and operation — so your work will be visible, impactful, and close to real customer needs. 

What you`ll do: 

• Develop, maintain, and enhance Windows-based desktop applications using .Net. 
• Maintain and develop DLLs written in C++. 
• Implement CI/CD pipelines for development and QA processes. 
• Act as a liaison between the customer and the development team, collecting and synthesizing feedback into actionable tasks. 
• Ensure on-time delivery of high-quality products. 
• Collaborate with cross-functional teams, including engineering, sales, marketing, and support, to deliver successful projects. 
• Identify potential risks and issues within the project and propose mitigation strategies. 

What we offer: 

• Meaningful Impact: Build solutions that are used every day by thousands of businesses — your work will directly improve real-world security and connected device experiences. 
• Product & Process Ownership: Help shape not only the product, but also how we build and deliver it — your ideas and decisions will have visible impact. 
• Industry Influence: Contribute to key security standards and best practices, staying ahead of the curve in a fast-evolving industry. 
• Modern Tech Stack & Hardware: Work with the latest hardware and the tools you need to do your best work. 
• Time Off & Flexibility: 20 vacation days, paid sick leave, and public holidays in line with German legislation — plus flexibility built around outcomes, not micromanagement. 
• Learning & Development Budget: We support continuous growth by covering hard and soft skills courses, trainings, and access to e-learning platforms. 
• Coworking Support: Prefer not to work from home every day? We offer coworking compensation so you can choose the environment that fits you best. 
• Language Learning Support: Monthly fixed compensation you can use to improve your English or German through the learning format of your choice. 
• Strong Team Culture: Open collaboration, a flat structure, and thoughtful onboarding—your voice is heard, and you can make an impact from day one. 

What you bring: 

• Proven experience in Windows .Net Desktop application development. 
• Familiarity with System.Reactive and its extensions for reactive programming. 
• Experience with System.Security.Cryptography for cryptographic operations. 
• Basics knowledge of C++ and DLL development. 
• Experience in implementing CI/CD pipelines. 
• Excellent communication and collaboration skills. 
• Advanced Business English language knowledge. 
• Good analytical skills, oriented on continuous process improvement. 
• Responsibility for customer/partner relation growth. 

Nice to have: 

• Experience with IoT products in building automation and physical access control. 
• Mastery Degree in Computer Science or related field. 
• Understanding of general security concepts. 
• German language skills. 

Join CoreWillSoft GmbH and help build Windows-based software that protects critical facilities and infrastructure. We develop innovative physical security and access control solutions, integrating building automation, IoT devices, and high-security hardware. 

You’ll join an Agile, international team distributed across locations, with our headquarters in Bonn, Germany. We own the full product lifecycle — from discovery and implementation to release and operation — so your work will be visible, impactful, and close to real customer needs. 

What you`ll do: 

• Develop, maintain, and enhance Windows-based desktop applications using .Net. 
• Maintain and develop DLLs written in C++. 
• Implement CI/CD pipelines for development and QA processes. 
• Act as a liaison between the customer and the development team, collecting and synthesizing feedback into actionable tasks. 
• Ensure on-time delivery of high-quality products. 
• Collaborate with cross-functional teams, including engineering, sales, marketing, and support, to deliver successful projects. 
• Identify potential risks and issues within the project and propose mitigation strategies. 

What we offer: 

• Meaningful Impact: Build solutions that are used every day by thousands of businesses — your work will directly improve real-world security and connected device experiences. 
• Product & Process Ownership: Help shape not only the product, but also how we build and deliver it — your ideas and decisions will have visible impact. 
• Industry Influence: Contribute to key security standards and best practices, staying ahead of the curve in a fast-evolving industry. 
• Modern Tech Stack & Hardware: Work with the latest hardware and the tools you need to do your best work. 
• Time Off & Flexibility: 20 vacation days, paid sick leave, and public holidays in line with German legislation — plus flexibility built around outcomes, not micromanagement. 
• Learning & Development Budget: We support continuous growth by covering hard and soft skills courses, trainings, and access to e-learning platforms. 
• Coworking Support: Prefer not to work from home every day? We offer coworking compensation so you can choose the environment that fits you best. 
• Language Learning Support: Monthly fixed compensation you can use to improve your English or German through the learning format of your choice. 
• Strong Team Culture: Open collaboration, a flat structure, and thoughtful onboarding—your voice is heard, and you can make an impact from day one. 

What you bring: 

• Proven experience in Windows .Net Desktop application development. 
• Familiarity with System.Reactive and its extensions for reactive programming. 
• Experience with System.Security.Cryptography for cryptographic operations. 
• Basics knowledge of C++ and DLL development. 
• Experience in implementing CI/CD pipelines. 
• Excellent communication and collaboration skills. 
• Advanced Business English language knowledge. 
• Good analytical skills, oriented on continuous process improvement. 
• Responsibility for customer/partner relation growth. 

Nice to have: 

• Experience with IoT products in building automation and physical access control. 
• Mastery Degree in Computer Science or related field. 
• Understanding of general security concepts. 
• German language skills. 

About The Position

MWDN connects exceptional tech talent with leading companies across Israel, the USA, Great Britain, and Western Europe. We aim to ensure our employees enjoy a rewarding and secure experience while collaborating with prestigious international clients.

Why does MWDN rock?

Here’s what you can expect when you join MWDN:

• Security: We carefully vet our clients to minimize risks and ensure reliability and timely payments—no fraud or unpleasant surprises.
• Career support: If a project isn’t the right fit, we support you and actively help find new opportunities that match your skills and career goals.
• Legal assistance: We provide guidance on legal matters, including opening and managing your independent contractor or sole proprietorship status, taxes, and related processes.
• Professional development: We offer English courses and professional growth opportunities, as well as team-building events.

Why choose us? MWDN is ranked among the top 5 IT employers in our region according to DOU. We take pride in our transparency and strong commitment to our team. Curious to learn more? See what our employees say about working with us on .

What is your new project?

• Domain: Security
• Location: Israel
• Company size: 51-200 employees

• Founded in: 2019

   

What makes you a great fit

• BSc in Computer Science/Software Engineering (or equivalent)
• 5+ years of experience as a Software Developer
• Proficiency in C#/C++ programming languages
• Networking knowledge
• Strong coding and troubleshooting skills
• Ability to work independently as part of a team
• Experience in security technologies (attacks and threat prevention) — an advantage

• At least an upper-intermediate level of English

   

Your day-to-day in this position

• Work on client-side Backend in different languages
• Work with other team members to investigate design approaches, prototype and assess technical feasibility
• Work on a product with cross-organization integration requirements

• Investigate and solve issues arrive from customers

   

Why work with us?

• People-first management with minimal bureaucracy
• A friendly company culture, proven by employees who choose to return
• Flexible working hours
• 29 days of PTO (18 working days per year pluse all national holidays)
• 10 paid sick days
• Full financial and legal support for independent contractors
• Free English classes, with native speakers or Ukrainian teachers

• Dedicated HR support

   

Our next steps

✅ Intro call with a Recruiter — ✅ Client tech interview — ✅ Second tech interview — ✅ HR client interview — ✅ Reference check — ✅ Offer

About The Position

MWDN connects exceptional tech talent with leading companies across Israel, the USA, Great Britain, and Western Europe. We aim to ensure our employees enjoy a rewarding and secure experience while collaborating with prestigious international clients.

Why does MWDN rock?

Here’s what you can expect when you join MWDN:

• Security: We carefully vet our clients to minimize risks and ensure reliability and timely payments—no fraud or unpleasant surprises.
• Career support: If a project isn’t the right fit, we support you and actively help find new opportunities that match your skills and career goals.
• Legal assistance: We provide guidance on legal matters, including opening and managing your independent contractor or sole proprietorship status, taxes, and related processes.
• Professional development: We offer English courses and professional growth opportunities, as well as team-building events.

Why choose us? MWDN is ranked among the top 5 IT employers in our region according to DOU. We take pride in our transparency and strong commitment to our team. Curious to learn more? See what our employees say about working with us on .

What is your new project?

• Domain: Security
• Location: Israel
• Company size: 51-200 employees

• Founded in: 2019

   

What makes you a great fit

• 3+ years of professional development experience (we mostly use C#).
• Understanding of Windows OS Internals (Processes/Threads, Memory Management, File Systems, and Registry).
• Proven track record in debugging complex systems. You should be comfortable navigating unfamiliar codebases to find the source of a leak or a crash.
• Problem-Solving: The ability to stay calm under pressure during remote customer sessions and provide a clear path to resolution.
• An Advantage: Experience with Kernel-mode development (drivers), network protocols, or cybersecurity threat prevention.

• At least an upper-intermediate level of English. You must be able to explain complex technical issues to both IT managers and fellow developers.

   

Your day-to-day in this position

• Live Investigation: Lead remote technical sessions with customers to investigate complex software malfunctions, performance bottlenecks, and security gaps in real-time.
• Advanced Debugging: perform root-cause analysis on Windows-based endpoint systems.
• Code Resolution: Design and implement code fixes (C#) or features to enhance product stability and meet specific customer requirements.
• Sustaining Engineering: Own the entire lifecycle of a fix, from reproducing the bug to final deployment at the customer site.

• Technical Advocacy: influence the core product roadmap based on recurring issues and customer feedback.

   

Why work with us?

• People-first management with minimal bureaucracy
• A friendly company culture, proven by employees who choose to return
• Flexible working hours
• 29 days of PTO (18 working days per year pluse all national holidays)
• 10 paid sick days
• Full financial and legal support for independent contractors
• Free English classes, with native speakers or Ukrainian teachers

• Dedicated HR support

   

Our next steps

✅ Intro call with a Recruiter — ✅ Client tech interview — ✅ Second tech interview — ✅ HR client interview — ✅ Reference check — ✅ Offer

About us

3Shape develops 3D scanners and software solutions that enable dental and hearing professionals to treat more people more effectively. Our products are market leading innovative solutions that make a real difference in the lives of both patients and dental professionals around the world.

3Shape is headquartered in Copenhagen, with development teams in Denmark, Ukraine, North Macedonia and with a production site in Poland.

We are a global company with presence in Europe, Asia and the Americas. Founded in a year 2000, today, we provide services to customers in over 130 countries. Our growing talent pool of over 2200 employees spans 50 nationalities.

3Shape as an employer is committed to Ukraine. Our UA office was founded in 2006, and we are continuing to grow, hire and take care of our employees even during the war in Ukraine. Among other actions, we support our contractors who are called to the military service, as well as care about our colleagues’ mental health by implementing different activities.


About the role:

We are looking for an experienced C# Software Developer with strong expertise in WPF to join our Kyiv office and become a part of a well-established cross-country engineering team. We embrace a strong engineering culture, a high degree of autonomy, and close collaboration with colleagues in Copenhagen, Ukraine, and throughout Europe.
 

As part of the Unite Patient Workflows team, you will develop both the frontend (WPF) and backend components of 3Shape Unite, including integrations with cloud services and 3rd‑party partner solutions. The project addresses critical technical and business challenges across various system domains, including:

• Designing and managing data flow between desktop and web applications within the 3Shape ecosystem
• Bringing multiple 3D modules into a unified framework with consistent UI and workflows
• Providing users with seamless access to labs, apps, and partner integrations through a coherent interface

We invite you to join us and bring your expertise in software development. We value your ability not only to build robust, high‑quality software but also to communicate complex technical concepts clearly and to help guide and mentor other team members as they grow.
 

Areas of responsibility:

You will be working on a modern desktop application using the latest C# features, NET 10, and WPF, and participating in transitioning to the web-based components:

• Design, develop, test and maintain a desktop application for dentistry
• Drive high code quality through reviews, refactoring, code metrics, and engineering best practices
• Ensure maintainability and long‑term scalability of the application
• Implement and maintain automated tests to secure product reliability
• Collaborate closely with product owners, architects, and other engineers in an agile environment
• Demo completed work, share challenges, and contribute to the team discussions
• Participate in retrospectives and propose initiatives to improve team processes

To succeed in your role, you should possess the following skills and competencies:

• 3+ years of professional experience in software development
• Strong C# and modern .NET (6-10) experience (Windows Desktop)
• Solid understanding of WPF: XAML, data binding, styles/resource dictionaries, control templating, and troubleshooting
• MVVM done right: no/minimal code-behind, and clean separation of concerns
• Persistence and ability to deliver results despite obstacles
• A pragmatic mindset with a strong sense of ownership

Being part of us means:

• Meaningful work that helps to change the future of dentistry
• Work in a unique, professional, friendly, and supportive environment
• Constant professional growth and development
• A healthy work-life balance
• Comprehensive benefits incl. 24 working days of annual vacation; medical insurance; paid sick leaves and child sick leaves; maternity and paternity leaves etc
• Breakfasts and lunches in the office
• Good working conditions in a comfortable office in UNIT.City
• A parking lot with free spaces for employees
• Occasional business trips to Western Europe
• Opportunity to become a part of the success that 3Shape has created over the past 25 years.

We will be glad to welcome you to our team!

About:
We are looking for a Senior Backend Engineer (.NET) to join a healthcare project focused on building a Connected Device Data Platform that ingests biometric data (pulse, heart rate, O2, steps, accelerometer) from smartwatch wearable devices via AWS IoT Core and delivers it to a companion mobile app.

This is a hands-on senior role requiring strong autonomy, ownership of a .NET Core codebase, and experience working with AWS cloud-native services.

This position provides the possibility of business trips (EU, USA) and occasional visits to the Lviv office when needed.

What We’re Looking For:

• 5+ years of backend development experience with .NET Core / C#
• Strong experience designing and building REST APIs with ASP.NET Core
• Solid PostgreSQL skills (data modeling, query optimization, migrations)
• Hands-on experience with AWS services: Lambda, S3, RDS, CloudWatch, SNS/SQS, Cognito
• Experience with event-driven/message-based architectures (Amazon MSK / Kafka or similar)
• Experience with microservices architecture and serverless patterns (AWS Lambda)
• Working knowledge of Docker/Kubernetes (AWS EKS)
• Experience integrating third-party notification services (Twilio, Firebase, or similar)
• Ability to read and analyze unfamiliar codebases, including Java, to understand integration points
• Good English communication skills for daily interaction with PM and cross-team coordination

• Experience working in Agile/Scrum environments (planning, backlog grooming, demos)

   

Your Responsibilities:

• Own and evolve the Lifeline Connect REST API (.NET Core) serving the Flutter mobile app
• Manage and extend PostgreSQL data models for patient/device data, biometric records, user management, and alarm events
• Build the alarm/notification service using AWS Lambda and Amazon MSK (Kafka), delivering notifications via Twilio and Firebase
• Develop and maintain the IoT data enrichment pipeline, processing MQTTS device data and persisting it to InfluxDB and PostgreSQL
• Integrate authentication and user management using Amazon Cognito
• Contribute to building the IoT Device Manager for registration and provisioning via AWS IoT Core
• Analyze incoming Java code deliveries from the hardware team to understand device-side logic and integration points
• Implement integrations with third-party monitoring services and healthcare providers
• Prepare the platform for AWS HealthLake (FHIR) integration
• Participate in 2–3 week sprint cycles, communicating technical decisions and assessments
• Maintain technical documentation, API specifications, and architecture documentation
• Contribute to HIPAA compliance foundations (encryption, access control, audit trails)

• Support future AI/ML-driven features (anomaly detection, predictive analytics) and new IoT device integrations

   

Will Be a Plus:

• Experience with healthcare platforms, biometric data processing, or HIPAA/GDPR compliance
• Familiarity with time-series databases (InfluxDB, AWS Timestream)
• Experience with Amazon Cognito or similar authentication systems (OAuth 2.0, user pools)
• Experience with FHIR standards or AWS HealthLake
• Experience integrating AI/ML services (anomaly detection, predictive analytics)

Наша компанія ДЕКА — одна з найбільших компаній на українському ринку годинників. Розвиваючись з 1992 року, компанія завоювала бездоганну репутацію. На сьогоднішній день компанія налічує понад 50 магазинів із високим рівнем обслуговування. Ми є офіційними представниками понад 50 всесвітньо відомих годинникових брендів.

Робота в нас це: стабільність, гідна заробітна плата, соціальні гарантії,  дружний колектив, престиж. У зв'язку з активним розвитком ми відрили такі вакансії: C# WinForms Developer (ERP Migration / AI-Assisted)

Обов'язкові технічні навички (Hard Skills)

Ви маєте підтверджений комерційний досвід у наступних технологіях:

• C# / .NET Framework або .NET 8+ — впевнене володіння мовою, ООП, патерни проєктування
• Windows Forms (WinForms) — досвід побудови десктопних бізнес-додатків з нуля або рефакторинг існуючих
• Microsoft SQL Server (MSSQL) — проєктування БД, написання складних запитів, збережені процедури, оптимізація
• Entity Framework або ADO.NET — робота з ORM та/або прямими запитами до БД
• Архітектура ERP-систем — розуміння модулів: склад, закупівлі, продажі, фінанси, виробництво, CRM
• Git (GitHub / GitLab) — робота з гілками, pull requests, code review

• Досвід міграції / переписування legacy-систем — аналіз існуючого коду, перенесення бізнес-логіки

   

  Навички роботи з AI-інструментами (ключова вимога)

• Проєкт передбачає активне використання Claude Code (Anthropic) як основного інструменту прискорення розробки. Кандидат повинен:
• Мати досвід роботи з Claude Code або аналогічними AI coding assistants (GitHub Copilot, Cursor, Cody тощо)
• Вміти формулювати ефективні промпти для генерації коду, рефакторингу та написання тестів
• Розуміти обмеження AI-інструментів: вміти верифікувати згенерований код, виявляти галюцинації та помилки
• Бути готовим працювати у зв'язці «людина + AI»: планувати архітектуру самостійно, делегувати рутину AI

• Мати навички prompt engineering для декомпозиції складних задач на покрокові інструкції для AI

   

• Бажані навички (Nice to Have)
• Досвід роботи з DevExpress, Telerik або іншими UI-фреймворками для WinForms
• Знання Crystal Reports, FastReport або аналогічних генераторів звітів
• Досвід з Docker, CI/CD для десктопних додатків
• Базове розуміння 1С, BAS або інших ERP (для аналізу існуючої системи)
• Досвід написання unit/integration тестів (NUnit, xUnit)

• Знайомство з CQRS, Clean Architecture, DDD

   

• Основні задачі на проєкті
• Аналіз існуючої ERP-системи: вивчення бізнес-процесів, структури даних, звітів та інтеграцій
• Проєктування архітектури нової ERP на C# + WinForms + MSSQL з нуля
• Розробка модулів системи з використанням Claude Code для прискорення процесу
• Міграція даних з існуючої системи до нової БД (MSSQL)
• Створення системи звітності та аналітичних дашбордів
• Написання технічної документації та user guides

• Поступове впровадження: паралельна робота старої та нової систем, тестування, перехід

   

• Soft Skills та особисті якості
• Самостійність — здатність приймати технічні рішення без постійного контролю
• Комунікабельність — вміння спілкуватися з нетехнічними стейкхолдерами та збирати вимоги
• Відповідальність — дотримання дедлайнів, прозора комунікація щодо прогресу та проблем
• Адаптивність — готовність працювати з новими AI-інструментами та швидко навчатися
• Системне мислення — розуміння бізнес-процесів, а не лише написання коду

Software integration engineer (.Net WPF/SQL Developer)

Провідний інженер – інтегратор сервісів.

Деталі проекту

Розробки модулів інтеграції із податковими системами, банків, логістики (електронні ТТН), електронним документообігом.
Мета — створення інноваційних безпаперових рішень для обміну документами та транзакціями. для швидкого, зручного та надійного функціювання бізнесу в сучасних умовах.

• Працюємо над власним продуктовим рішенням, а не аутсорс.
• Швидкий вплив на продукт — коротке плече між ідеєю та реалізацією.
• Прагнемо інновацій у сфері роздрібних технологій

Команда

• розробники 
• аналітик
• команда QA

Технології, які використовуються на проекті

.Net Framework WinForms, WPF/C#/MVC
.Net 8, MS SQL TSQL, Rest Api

Технічний стек кандидата і основні вимоги 

Досвід від 4 років у проєктуванні та розробці ПЗ, який має:

• Досвід програмування SQL / WPF (або WinForms) 
• Досвід інтеграції зовнішніх систем
• Досвід роботи з системами контролю версій GIT
• Ведення задач в Jira
• Високу відповідальність, самоорганізацію, ініціативність

Українська — вільне володіння

Англійська — на рівні читання технічної документації

Цілі на період онбордінга 

Знайомство з поточною системою

Адаптація в команді

Поступове включення у розробку та задачі

Можливості зростання

Професійний розвиток у межах R&D департаменту

Участь у впровадженні нових технологій

Розширення зони відповідальності та кар’єрне зростання