Jobs C# / .NET

We are looking for a Mid-Level .NET C# Developer with expertise in building robust APIs using OData and Entity Framework. The ideal candidate will also have strong proficiency in writing efficient SQL queries and an understanding of best practices for data modeling, performance tuning, and security. 

As a part of our development team, you will work closely with cross-functional teams to design, build, and maintain scalable and secure APIs that integrate seamlessly with our services and data sources. 
 

Key Responsibilities: 

• API Development: Design, develop, and maintain RESTful APIs with a focus on OData integration, enabling efficient querying and data retrieval. 
• OData Implementation: Utilize OData to expose data from various sources, allowing clients to query and manipulate data efficiently via HTTP requests. 
• Entity Framework: Work with Entity Framework to create, update, and query data models, ensuring efficient database interactions and optimal performance. 
• SQL Query Writing: Write complex SQL queries to interact with relational databases, optimize performance, and ensure data consistency. 
• System Design & Architecture: Participate in designing scalable, high-performance architectures for APIs and backend systems. 
• Code Quality: Write clean, maintainable, and well-documented code, following industry best practices and company standards. 
• Collaboration: Work closely with other developers, product managers, and QA engineers to deliver high-quality features on time. 
• Troubleshooting & Debugging: Identify, troubleshoot, and resolve technical issues, bugs, and performance bottlenecks in a timely manner. 
• Continuous Improvement: Stay up-to-date with the latest developments in .NET technologies, OData, Entity Framework, and SQL, and apply best practices to improve system performance, reliability, and scalability. 

Requirements: 

• Proven Experience: 3+ years of experience in .NET C# development, with a focus on building APIs and working with web services. 
• OData Expertise: Solid understanding and hands-on experience in implementing and consuming OData APIs. 
• Entity Framework: Experience working with Entity Framework to map data models to database schemas and interact with relational databases. 
• SQL Proficiency: Strong ability to write and optimize complex SQL queries and work with relational databases (e.g., SQL Server, PostgreSQL, etc.). 
• Web API Knowledge: Familiarity with RESTful API principles and experience working with technologies like JSON, HTTP, and Web API frameworks. 
• Version Control: Experience using version control systems like Git or SVN. 
• Problem Solving: Strong analytical and debugging skills, with the ability to troubleshoot and optimize code for performance and reliability. 
• Collaboration Skills: Excellent communication and teamwork skills to collaborate effectively with cross-functional teams. 

Preferred Qualifications: 

• Cloud Experience: Familiarity with cloud platforms like Azure or AWS for hosting and scaling web applications.  
• Unit Testing: Experience writing unit tests and using frameworks like NUnit, MSTest, or xUnit.  
• Microservices: Understanding of microservices architecture and how APIs fit into distributed systems.  
• CI/CD: Familiarity with continuous integration/continuous deployment (CI/CD) pipelines and automated testing.  
• Real-Time Communication: Experience developing real-time applications and APIs using SignalR or similar technologies.  
• Messaging & Integration: Experience with Azure Service Bus or other enterprise messaging platforms for asynchronous communication and system integration.  
• Event-Driven Architecture: Understanding of event-driven architecture, messaging patterns, and distributed system design principles.  
• Event-Driven Development: Experience implementing event-driven solutions using queues, topics, publish/subscribe patterns, and asynchronous processing workflows.  
• Azure Ecosystem: Familiarity with Azure integration services and cloud-native development patterns, including messaging, event processing, and scalable backend services. 
• Experience leveraging AI-assisted software development tools such as Claude Code, GitHub Copilot, ChatGPT, or similar platforms to enhance developer productivity, code quality, troubleshooting, testing, and documentation.  
• Familiarity with modern AI-driven development workflows, including prompt-based code generation, code review assistance, refactoring, and automated test creation. 

We are looking for a .NET C# Developer with expertise in building robust APIs using OData and Entity Framework. The ideal candidate will also have strong proficiency in writing efficient SQL queries and an understanding of best practices for data modeling, performance tuning, and security. 

As a part of our development team, you will work closely with cross-functional teams to design, build, and maintain scalable and secure APIs that integrate seamlessly with our services and data sources. 

Key Responsibilities: 

• API Development: Design, develop, and maintain RESTful APIs with a focus on OData integration, enabling efficient querying and data retrieval. 
• OData Implementation: Utilize OData to expose data from various sources, allowing clients to query and manipulate data efficiently via HTTP requests. 
• Entity Framework: Work with Entity Framework to create, update, and query data models, ensuring efficient database interactions and optimal performance. 
• SQL Query Writing: Write complex SQL queries to interact with relational databases, optimize performance, and ensure data consistency. 
• System Design & Architecture: Participate in designing scalable, high-performance architectures for APIs and backend systems. 
• Code Quality: Write clean, maintainable, and well-documented code, following industry best practices and company standards. 
• Collaboration: Work closely with other developers, product managers, and QA engineers to deliver high-quality features on time. 
• Troubleshooting & Debugging: Identify, troubleshoot, and resolve technical issues, bugs, and performance bottlenecks in a timely manner. 
• Continuous Improvement: Stay up-to-date with the latest developments in .NET technologies, OData, Entity Framework, and SQL, and apply best practices to improve system performance, reliability, and scalability. 

Requirements: 

• Proven Experience: 5+ years of experience in .NET C# development, with a focus on building APIs and working with web services. 
• OData Expertise: Solid understanding and hands-on experience in implementing and consuming OData APIs. 
• Entity Framework: Experience working with Entity Framework to map data models to database schemas and interact with relational databases. 
• SQL Proficiency: Strong ability to write and optimize complex SQL queries and work with relational databases (e.g., SQL Server, PostgreSQL, etc.). 
• Web API Knowledge: Familiarity with RESTful API principles and experience working with technologies like JSON, HTTP, and Web API frameworks. 
• Version Control: Experience using version control systems like Git or SVN. 
• Problem Solving: Strong analytical and debugging skills, with the ability to troubleshoot and optimize code for performance and reliability. 
• Collaboration Skills: Excellent communication and teamwork skills to collaborate effectively with cross-functional teams. 

Preferred Qualifications: 

• Cloud Experience: Familiarity with cloud platforms like Azure or AWS for hosting and scaling web applications.  
• Unit Testing: Experience writing unit tests and using frameworks like NUnit, MSTest, or xUnit.  
• Microservices: Understanding of microservices architecture and how APIs fit into distributed systems.  
• CI/CD: Familiarity with continuous integration/continuous deployment (CI/CD) pipelines and automated testing.  
• Real-Time Communication: Experience developing real-time applications and APIs using SignalR or similar technologies.  
• Messaging & Integration: Experience with Azure Service Bus or other enterprise messaging platforms for asynchronous communication and system integration.  
• Event-Driven Architecture: Understanding of event-driven architecture, messaging patterns, and distributed system design principles.  
• Event-Driven Development: Experience implementing event-driven solutions using queues, topics, publish/subscribe patterns, and asynchronous processing workflows.  
• Azure Ecosystem: Familiarity with Azure integration services and cloud-native development patterns, including messaging, event processing, and scalable backend services. 
• Experience leveraging AI-assisted software development tools such as Claude Code, GitHub Copilot, ChatGPT, or similar platforms to enhance developer productivity, code quality, troubleshooting, testing, and documentation.  
• Familiarity with modern AI-driven development workflows, including prompt-based code generation, code review assistance, refactoring, and automated test creation. 

Ми шукаємо Senior Back-End Developer, який має глибоку технічну експертизу в розробці високонавантажених серверних систем, добре розуміється на алгоритмах, структурах даних та принципах побудови ефективного програмного забезпечення. 

Ви будете брати участь у проєктуванні, розробці та підтримці бекенд-рішень, працювати з сучасним стеком технологій та впливати на архітектурні рішення продукту. Знання Rust буде перевагою, але не є обов’язковою вимогою.
 

Основні обов'язки

• Розробка, проєктування та підтримка бекенд-компонентів веб-застосунків на платформі C# / .NET
• Проєктування та розвиток API (HTTP/REST, JSON, gRPC) для взаємодії з фронтендом та іншими сервісами
• Розробка безпечного, надійного та продуктивного коду з акцентом на ефективне використання ресурсів
• Робота з PostgreSQL, Redis та іншими компонентами інфраструктури
• Взаємодія з операційною системою Linux (Ubuntu), налаштування та підтримка сервісів через SystemD та JournalD
• Робота з контейнеризацією та середовищами розгортання на базі Docker
• Участь у побудові та підтримці CI/CD процесів для автоматизації збірки, тестування та доставки програмного забезпечення
• Робота з хмарною інфраструктурою та сервісами (AWS, Azure або GCP) у межах проєктних задач
• Розробка та підтримка автоматизованих тестів (unit та integration tests)
   

Вимоги

• Комерційний досвід розробки на рівні Senior Software Engineer
• Практичний досвід роботи з .NET, PostgreSQL та Redis
• Відмінне знання алгоритмів, структур даних та базових концепцій теорії типів.
• Впевнене розуміння асинхронного програмування та багатопотокових систем.
• Досвід розробки високопродуктивних сервісів з оптимальним використанням пам’яті та обчислювальних ресурсів
• Практичний досвід роботи з Linux-середовищем
• Досвід роботи з Docker та контейнеризованими середовищами
• Досвід налаштування та підтримки CI/CD пайплайнів.
• Досвід роботи з однією або кількома хмарними платформами (AWS, Azure, GCP)
• Розуміння принципів побудови мікросервісної архітектури та взаємодії через API

• Досвід написання unit та integration тестів

  
   

Буде перевагою

• Практичний досвід розробки на Rust
• Досвід побудови та підтримки високонавантажених розподілених систем
   

Ми пропонуємо

• Роботу над продуктами, що мають прямий вплив на обороноздатність України
• Команду сильних інженерів, які створюють рішення для реальних викликів сьогодення
• Можливість бронювання відповідно до чинного законодавства.
• Офіційне працевлаштування та соціальні гарантії згідно з КЗпП України
• Оплачувану відпустку та лікарняні
• Компенсація оренди житла при переїзді з інших регіонів.
• Конкурентну винагороду
• Можливість відряджень
• Простір для професійного розвитку, ініціатив та впливу на кінцевий результат

Наразі ми в пошуках фахівця на посаду .Net Core Backend Developer, який розділяє наші цінності та прагне стати частиною нашої компанії.
 

Вимоги:

• Досвід бекенд розробки із .NET 6+ (від 5 років)
•  Досвід використання AI (Cursor/Codex/Claude Code)
• Знання та розуміння концепції ООП та dependency injection в С#
• Вміння працювати з Git/GitHub
• Досвід роботи із Entity Framework в .NET
• Досвід створення REST Api
• Базові знання CSS/HTML
• Базові знання SQL
• Вміння працювати в команді та в межах дедлайну
• Закінчена чи не закінчена освіта за профільною спеціальністю (програмна інженерія)
• Розуміння термінів асинхронні методи, область видимості функції, паттерни
   

Буде плюсом:

• Досвід роботи із OpenAI API/ChatGpt API
• Досвід роботи в Travel сфері (готелі, перельоти ітд.)
• Досвід роботи із Razor в .NET
• Досвід програмування Typescript/Next.js/React
• Досвід із Bootstrap/Tailwind
   

Умови роботи:

• Вільний графік та віддалена співпраця
• Можливість професійного росту в компанії
• Заробітня плата завжди прив‘язана до валюти
• Оплачувана відпустка та лікарняний

Наш продукт
Ми розвиваємо міжнародну платформу для бронювання готелів, яка забезпечує доступ до широкого вибору варіантів розміщення по всьому світу та інтегрована з провідними постачальниками туристичного контенту.
 

📌 Київ, робота в офісі

Ми шукаємо .NET розробника для створення десктопного додатку, який працює з великими масивами даних та графіками

🚀 Що потрібно робити

• Розробка desktop-додатку під Windows
• Обробка та аналіз великих обсягів даних / логів
• Побудова графіків і інтерфейсу для візуалізації
• Робота з файлами, архівами, серверами
• Співпраця з Team Lead (code review, архітектура)

✅ Що важливо

• Досвід з C# / .NET
• Досвід desktop-розробки (WPF / WinForms)
• Робота з великими масивами даних
• Досвід побудови UI
• Самостійність у вирішенні задач
• Досвід з data visualization
• Робота з логами / telemetry
• Досвід у hardware / embedded

💡 Що отримаєш

• Офіційне оформлення та бронювання
• Роботу над складним та важливим технічним продуктом працюючим на нашу перемогу
• Команду з технічним лідом і продуктовою експертизою

⚠️ Важливо

Шукаємо не web-розробника, а спеціаліста з desktop + data processing.

Продуктова FinTech-компанія з міжнародною присутністю шукає Lead Full Stack Engineer, який візьме на себе технічне лідерство невеликої команди та працюватиме над високонавантаженим продуктом у сфері фінансових ринків.
 

Команда розробляє рішення, що забезпечують миттєве проведення операцій на глобальних біржах із мінімальною затримкою сигналу. Це інженерія, де рахунок іде на мілісекунди — і саме код безпосередньо впливає на конкурентну перевагу продукту.
 

Що буде у фокусі ролі:

• розробка та розвиток full stack-рішень на базі .NET та Angular
• участь у формуванні технічних рішень і архітектури продукту
• лідинг команди (3–5 інженерів): планування, розподіл задач, менторинг
• взаємодія з R&D та іншими технічними стейкхолдерами
• оптимізація продуктивності системи (low-latency середовище)
• участь у code review та підвищенні інженерних стандартів
   

Ключові вимоги:

• глибока експертиза з .NET та .NET Core
• актуальний досвід з Angular 2+
• впевнене знання SQL
• досвід лідингу команди (повноцінна відповідальність за команду)

• досвід роботи з розподіленими або високонавантаженими системами буде плюсом

   

Формат роботи та умови:

• віддалений формат роботи
• міжнародна команда та проєкти у FinTech-домені
• 15 робочих днів відпустки + державні святкові дні
• 10 днів лікарняних
• компенсація медичного страхування

• забезпечення технікою

   

Процес відбору:

1. технічне інтерв’ю з Team Lead
2. технічне інтерв’ю з R&D Manager
3. фінальний етап із фаундером (≈30 хв)

About PredictSpring

PredictSpring is a market-leading company shaping the future of omni-channel retail and modern POS technology. We help global retail and lifestyle brands deliver seamless, modern, and data-driven customer experiences across digital and in-store channels.

We are looking for an experienced Senior C#/.NET Full Stack Engineer to join our team and help build scalable, secure, and high-performance software solutions across our platform, products, and business operations.

In this role, you will work across backend, frontend, cloud infrastructure, and deployment workflows, helping us deliver reliable enterprise-grade systems for modern omni-channel retail and POS experiences.

Responsibilities

As a Senior C#/.NET Full Stack Engineer, you will:

• Design, develop, and maintain scalable, secure, and high-performance applications using C# and .NET technologies.
• Build and maintain backend services, business logic, APIs, and application workflows that support PredictSpring’s platform and product operations.
• Develop and implement RESTful APIs to connect frontend applications, backend services, third-party systems, and internal tools.
• Work with cloud-based infrastructure on AWS and Azure to support scalable, reliable, and production-ready systems.
• Containerize applications using Docker and support deployment and orchestration workflows using Kubernetes.
• Collaborate with cross-functional teams, including product, engineering, design, operations, and business stakeholders, to deliver high-quality software solutions.
• Troubleshoot, debug, and optimize applications for performance, reliability, scalability, and maintainability.
• Write clean, efficient, maintainable, and testable code following software engineering best practices.
• Participate in code reviews, technical discussions, architecture decisions, and continuous improvement of development standards.
• Implement and improve CI/CD pipelines to streamline build, testing, deployment, and release processes.
• Ensure security, data protection, and reliability across applications, services, APIs, and cloud environments.
• Work with SQL and NoSQL databases to design, query, optimize, and maintain data-driven application features.
• Stay current with modern software engineering, cloud, DevOps, and full stack development practices, and apply relevant improvements to PredictSpring’s platform and operations.

Requirements

We are looking for someone with:

• Excellent communication skills, including fluent verbal English, with the ability to explain technical concepts clearly and collaborate effectively across distributed teams.
• Bachelor’s or Master’s degree in Computer Science, Software Engineering, Information Technology, or a related field.
• Proven experience as a Full Stack Engineer or Full Stack Developer, with strong hands-on experience in C# and .NET technologies.
• Strong experience designing, building, and maintaining scalable backend systems, APIs, and enterprise-grade applications.
• Solid understanding and hands-on experience with AWS and Azure cloud services.
• Expertise in containerization and orchestration technologies such as Docker and Kubernetes.
• Strong experience with SQL and NoSQL databases, such as SQL Server, MongoDB, or similar technologies.
• Experience building and consuming RESTful APIs and integrating frontend and backend systems.
• Familiarity with frontend technologies such as JavaScript, React.js, Angular, or similar frameworks.
• Strong understanding of software architecture, clean code principles, debugging, performance optimization, and maintainable system design.
• Knowledge of version control systems such as Git.
• Familiarity with agile development methodologies, sprint-based workflows, and collaborative engineering practices.
• Experience with CI/CD processes and modern deployment pipelines.
• Strong problem-solving skills and the ability to analyze, debug, and resolve complex technical issues.

Preferred Qualifications

Nice to have:

• Experience with microservices architecture and distributed system design.
• Experience with serverless computing and cloud-native application development.
• Familiarity with DevOps practices and infrastructure-as-code tools such as Terraform.
• Understanding of cloud-native security services, application security, authentication, authorization, and data protection best practices.
• Experience with testing frameworks, including unit testing, integration testing, and UI testing.
• Experience working with high-traffic, scalable, customer-facing SaaS or enterprise platforms.
• Experience supporting production systems, monitoring application health, and improving reliability over time.
• Experience in retail, e-commerce, omni-channel commerce, or POS technology is a strong plus.

Why PredictSpring?

• Join a market-leading company shaping the future of omni-channel retail and modern POS.
• Work on high-impact engineering challenges at the intersection of commerce, cloud technology, and customer experience.
• Collaborate with a talented global team in a flexible remote work environment.
• Enjoy opportunities for growth, learning, and professional development.
• Contribute to products used by some of the world’s most recognized retail and lifestyle brands.
• Be part of an innovative, collaborative, and engineering-driven culture focused on building reliable, scalable, and measurable business value.

About the role

We are looking for a Middle/Senior Developer with strong .NET expertise and hands-on AWS experience to join one of our long-term projects. The ideal candidate is a proactive engineer who can take ownership of development tasks, deliver high-quality solutions, and collaborate effectively with the team.

Responsibilities

• Design, develop, and maintain software applications using .NET technologies.
• Analyze requirements, estimate tasks, and take ownership of engineering activities.
• Deliver efficient and scalable solutions with high-quality code.
• Write clean and maintainable code with a strong focus on Unit Test coverage and Definition of Done principles.
• Develop and maintain relational databases and integrate them with software applications.
• Create and maintain REST APIs.
• Collaborate with team members to design and implement solutions aligned with business requirements.
• Participate in code reviews and contribute to maintaining coding standards and best practices.
• Work with AI tools as part of the development process.

Requirements

• Strong commercial experience with C#/.NET Core and .NET Framework.
• Experience with AWS services, including SQS and Lambda.
• Hands-on experience with SQL Server (MSSQL) and relational databases.
• Experience creating and maintaining REST APIs.
• Experience working in Agile environments.
• Strong understanding of software development best practices and code quality standards.
• Advanced or higher level of English.

Nice to have

• Experience with additional cloud technologies and modern architecture approaches.
• Experience working with AI-powered development tools.

Developing a software platform for the automated analysis and visualization of cyberattacks in safety-critical systems. The goal is to efficiently support companies in regulated industries – from automotive and energy to the security and defence sector – in implementing complex cybersecurity requirements, the deal is to distributed a micro-service based application for real-time system design and threat modelling.
Based on best practices of Domain Driven Design.

Technology:
- C# / .Net Core;
- Rest Api / Json;
- NuGet / Packages;
- Ado.Net / EntityFramework / Dapper; 
- Sql (relational design understanding);
- Windows / Linux;
- Message broking;
 

Would be a plus:
- Html / Css / JS;
- Sass / Less;
- Anguler | React | VueJs (some of);
 

Architecture:

- Multi- (micro-/macro-) services;
- System complexity management;
- Testing approaches understanding;
- CI/CD concepts understanding; 
- Clean coding / Refactoring;
- Ability to keep architecture consistency;
- DDD, SOLID, KISS

General .net:

- Keep development process clean and transparent for project management and rest of the team;
- Integrate FE development process with existing project parts;
- Be aware in full-stack scope of product development;

General BA:

- Solid understanding of software architecture concepts (layers, microservices, APIs, data models, integration patterns);
- Experience translating business requirements into technical constraints and design principle;
- Strong analytical, communication, and documentation skills;

Tools:
- Git;
- Postman / Fiddler (or any other utility); 
- Docker;
Other:
- English - upper intermediate (C1 equivalence);

ASAP Hiring
Long notice periods won't be considered.

We're building a new AWS-based logistics platform that centralizes operational workflows and business data.

Our immediate focus is integrating existing operational systems (Monday.com, Trucker Tools) into a unified backend environment, synchronizing data with AWS-hosted databases, and building scalable services for logistics operations.
 

What You'll Do

• Build and maintain backend services using .NET / ASP.NET Core
• Integrate Monday.com and Trucker Tools APIs
• Design and optimize PostgreSQL / SQL database structures
• Implement data synchronization and webhook-based integrations
• Develop backend logic for orders, loads, routes, delivery tracking, and operational reporting
• Collaborate closely with frontend and AWS infrastructure teams
   

What We Expect

• Strong commercial experience with C# and .NET
• Solid REST API development experience
• Strong SQL and relational database design skills
• Experience integrating third-party APIs
• Experience with webhooks and event-driven systems
• Hands-on experience with AWS environments
• Strong understanding of scalable backend architecture
   

Nice to Have

• Experience in logistics, transportation, fulfillment, or supply chain products
   

Tech Stack

.NET Core • C# • PostgreSQL • REST APIs • AWS • Monday.com API • Trucker Tools API • Webhooks • GitHub • CI/CD

We are looking for a skilled  Developer with strong experience in .NET  to join our team on a long-term project focused on building and enhancing a modern call center solutions platform. The system is designed to optimize customer support processes, integrate with telephony services, and offer real-time data analytics.

Technology Environment

• .NET / ASP.NET Core
• C#
• PostgreSQL / SQL Databases
• REST APIs
• Monday.com API
• Trucker Tools API
• Webhooks & Event Processing
• AWS Cloud Services
• Git / GitHub

• CI/CD Pipelines

   

Responsibilities

• Build and maintain backend services and APIs.
• Integrate Monday.com and Trucker Tools APIs.
• Design, extend, and optimize SQL database structures.
• Implement data synchronization between Monday.com and AWS-hosted databases.
• Develop webhook-based and event-driven integrations.
• Model and manage business entities such as orders, loads, stops, drivers, delivery statuses, proof-of-delivery records, and customer service issues.
• Develop backend logic supporting operational workflows and tracking processes.
• Collaborate with frontend developers to deliver clean and scalable API contracts.
• Work closely with AWS engineers on deployment and infrastructure requirements.

• Document backend functionality and technical decisions.

   

Required Experience

• Strong commercial experience with .NET and C#.
• Experience building and maintaining RESTful APIs.
• Strong SQL database and relational data modeling experience.
• Experience designing and extending database schemas.
• Experience integrating third-party APIs and business platforms.
• Experience with webhooks and event-driven architectures.
• Experience working with AWS-based environments.
• Ability to work with operational and workflow-driven business data.

• Experience with Git/GitHub and modern development practices.

   

Nice to Have

• Experience in logistics, transportation, fulfillment, or supply chain systems.

What’s In It for You?

• Career Growth — Opportunities to develop and advance.
• Performance Reviews — Regular feedback and support.
• Work Anniversaries — Special gifts to celebrate milestones.
• Flexible Work — Hybrid or remote (Lviv office available).
• Mentorship — Guidance from experienced professionals.
• Accounting Support — We handle the paperwork.
• Paid Time Off — 18 vacation days + 5 sick days per year.
• Extra Leave — 10 additional days off annually.
• Free Office Lunches — Enjoy meals on us.
• Team Events — Gatherings, gifts, and a welcoming atmosphere.

Working hours: 14:00-22:00 CET

As a Lead Software Engineer, you will own all aspects of the software development lifecycle including design, development, testing, deployment, and maintenance of product features in software products. You will play a key role in ensuring that our client's storage solutions are reliable, scalable, and support advanced orchestration using technologies such as the Temporal .NET SDK.

You will enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You will collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices.

Responsibilities:

• Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers
• Build and maintain microservices-based architectures using C#, ASP.NET, and others
• Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL databases to build scalable, secure, and reliable cloud-native solutions
• Design, implement, and maintain distributed workflows using the Temporal .NET SDK to provide resilient and observable orchestration for business-critical backend processes
• Integrate Temporal workflows with our .NET microservices architecture and cloud-based infrastructure
• Design and implement RESTful or gRPC APIs, and ensure seamless integration with other systems and products
• Optimize architecture and solutions for scalability and availability, with cost and maintenance in mind
• Identify and address performance bottlenecks and scalability challenges proactively
• Align across teams for designs, communicate and resolve roadblocks
• Guide and mentor other engineers through design and code reviews

Required Qualifications:

• Extensive experience developing backend services and APIs in C#/.NET
• Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL Databases
• Experience with microservices architecture and distributed systems
• Hands-on experience with the Temporal .NET SDK or other workflow orchestration/tools (e.g., Durable Functions, Step Functions, Apache Airflow)
• Strong understanding of designing and building scalable, secure, and reliable cloud-native applications
• Experience with designing and implementing RESTful or gRPC APIs
• Knowledge of data storage best practices, including security, availability, and compliance

Preferred Qualifications:

• Familiarity with integrating orchestration tools into enterprise software environments
• Experience with performance optimization, cost management, and designing for high availability
• Excellent communication and collaboration skills
• Prior experience mentoring engineers and conducting design/code reviews
• Background in supporting analytics and business intelligence integrations

Blackthorn Vision is looking for a Middle/Middle Strong .NET Engineer. 

Our client, established in 2011 and based in Colorado, is a leading player in the U.S. application management market. We’ve had a successful partnership with this client and are seeking candidates who are eager to take ownership and improve a product already trusted by over 6,000 enterprises.

Requirements:

• 3+ years of commercial experience working on the backend as a .NET developer.
• Cloud systems development experience.
• Understanding of data access technologies, including Entity Framework and MongoDB.
• Experience with both SQL and NoSQL databases.
• Experience with microservice-oriented architecture, parallel, and asynchronous programming design patterns.
• Experience with Kubernetes, Docker, and RabbitMQ.
• Proven experience with Azure technologies: Azure Entra ID, Azure Storage accounts, Azure Service Bus, Azure Container Registry.
• Knowledge of design and architectural patterns.

• English level: Upper-Intermediate.

   

Responsibilities:

• Develop and maintain high-quality software solutions using .NET 8.0.
• Take full ownership of delivering new features to end users, including designing architecture, implementing, testing, and onboarding the customer support team with new functionality.
• Collaborate with product owners, the support team, and end users to understand project requirements and deliver solutions.
• Participate in code reviews to enhance overall code quality.
• Ensure applications are high-performing, responsive, and of excellent quality.
• Troubleshoot and resolve technical issues and defects promptly.
• Create code documentation, technical specifications, and architecture diagrams for new features.
• Follow agile methodologies and participate in regular sprint planning and review meetings.

You are compatible with us if you:

• Have a strong product mindset.
• Have a proactive approach to taking ownership of decisions/features.
• Possess a strong, curiosity-driven mindset.
• Are comfortable with challenges.
• Have the ability to collaborate and build relationships with diverse personalities.
• Demonstrate customer-focused decision-making.
• Exhibit clear and timely communication.
• Are open to giving and receiving constructive feedback.
• Value the quality of your code.
• Are able to solve the required technical tasks and communicate throughout the process (for example, asking clarifying questions promptly).

Our customer is a global leader in digital agreement and e-signature solutions, enabling organizations worldwide to securely manage, sign, and automate business-critical documents and workflows. We are looking for a self-motivated software engineer to join us in developing storage infrastructure to organize and facilitate our business growth. Our team is the center of how customers and services store their critical data and trust its security, performance, availability, compliance, and durability, which enables customers to derive intelligence and analytics through AI & BI.

As a Senior Software Engineer, you will own all aspects of the software development lifecycle including design, development, testing, deployment, and maintenance of product features. You will play a key role in ensuring that our storage solutions are reliable, scalable, and support advanced orchestration using technologies such as the Temporal .NET SDK. You enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices.

Responsibilities:

• Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers
• Build and maintain microservices-based architectures using C#, ASP.NET, and others
• Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL databases to build scalable, secure, and reliable cloud-native solutions
• Design, implement, and maintain distributed workflows using the Temporal .NET SDK to provide resilient and observable orchestration for business-critical backend processes
• Integrate Temporal workflows with our .NET microservices architecture and cloud-based infrastructure
• Design and implement RESTful or gRPC APIs, and ensure seamless integration with other systems and products
• Optimize architecture and solutions for scalability and availability, with cost and maintenance in mind
• Identify and address performance bottlenecks and scalability challenges proactively
• Align across teams for designs, communicate and resolve roadblocks
• Guide and mentor other engineers through design and code reviews

Requirements:

• Extensive experience developing backend services and APIs in C#/.NET
• Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL Databases
• Experience with microservices architecture and distributed systems
• Hands-on experience with the Temporal .NET SDK or other workflow orchestration/tools (e.g., Durable Functions, Step Functions, Apache Airflow)
• Strong understanding of designing and building scalable, secure, and reliable cloud-native applications
• Experience with designing and implementing RESTful or gRPC APIs
• Knowledge of data storage best practices, including security, availability, and compliance
• Availability to fully cover 13:00-22:00 EET working hours from Monday to Friday is a mandatory requirement for this role.

We are looking for a Senior Backend Engineer (.NET) to join a project - a clinical trial technology platform. It’s designed to digitize, streamline, and accelerate clinical trial operations across the full study lifecycle. The solution represents an end-to-end clinical trial management ecosystem that integrates multiple tools into one platform.

You will collaborate closely with cross-functional teams to deliver robust backend solutions and contribute to architectural decisions in a distributed, cloud-based environment.

What We’re Looking For:

• Strong experience with .NET Core / C# - at least 5 years
• Hands-on experience with Microservices architecture
• Experience with Event-Driven Architecture
• Solid knowledge of REST APIs design and development
• Experience with SQL / Relational Databases
• Experience working with Microsoft Azure
• Familiarity with Docker and Kubernetes
• Good communication and collaboration skills
• Upper-Intermediate level of English or higher

Your Responsibilities:

• Design, develop, and maintain backend services using .NET Core and C#
• Build and evolve scalable microservices within a distributed architecture
• Develop and maintain RESTful APIs for internal and external integrations
• Participate in system design and architectural discussions
• Collaborate with product managers, frontend engineers, and QA specialists
• Ensure performance, reliability, and scalability of backend services
• Implement event-driven solutions and asynchronous communication patterns
• Write clean, maintainable, and well-tested code
• Participate in code reviews and contribute to engineering best practices
• Troubleshoot, debug, and optimize existing services
• Contribute to CI/CD and containerized deployment workflows

Will Be a Plus:

• Experience in the healthcare domain
• Experience with clinical trials or clinical research platforms
• Understanding of regulatory requirements in healthcare environments