Jobs C# / .NET

🌎Akvelon is an American company with offices in Seattle, Mexico, Ukraine, Poland, and Serbia. Our company is an official vendor of Microsoft and Google. Our clients also include Amazon, Evernote, Intel, HP, Reddit, Pinterest, AT&T, T-Mobile, Starbucks, and LinkedIn. To work with Akvelon means to be connected with the best and brightest engineering teams from around the globe and working with an actual technology stack building Enterprise, CRM, LOB, Cloud, AI and Machine Learning, Cross-Platform, Mobile, and other types of applications customized to client’s needs and processes.

Requirements:

Must have:

• 0–0.6 year of commercial experience (internships and strong pet projects count)
• Working knowledge of C# and .NET 6/7/8
• Basics of ASP.NET Core and REST APIs
• SQL fundamentals and Entity Framework Core
• Git basics (branching, pull requests, merging)
• English B1+ for reading docs and team communication

Nice to have:

• Azure (App Service, Functions, DevOps)
• Unit testing (xUnit / NUnit, Moq)
• Docker and CI/CD basics
• Common design patterns and Dependency Injection

Overlap: stay available until 7 PM CET

Working conditions and benefits:

• Flexible working schedule: 8 hours per day, 40 hours per week
• Paid vacation, sick leave (without a sickness list)
• Official state holidays — 11 days considered public holidays
• Professional growth while attending challenging projects and the possibility to switch your role, master new technologies and skills with company support
• Personal Career Development Plan (CDP)
• Employee support program (Discount, Care, Health, Legal compensation)
• Paid external training, conferences, and professional certification that meet the company’s business goals
• Internal workshops & seminars
• Corporate library (Paper/E-books) and internal English classes.

Step into your future — apply now 🚀 and send us your CV.

Become a part of world-class engineering team and boost your expertise with Akvelon

Akvelon Inc (USA) works in the field of software engineering based on a variety of technologies. Our company is a member of the vendor program, which gives employees the opportunity to work with clients in the United States and other countries (Microsoft, Facebook, Airbnb, Dropbox, Pinterest, and many others). This is a great opportunity to transfer experience and experience with leading engineers of world-renowned companies.

We’re looking for a .NET Intern to join our team on a U.S. project. If you have at least 3 months of experience with .NET, are communicative, proactive — we’d love to hear from you.

Key Responsibilities

• Weekly calls with your technical mentor
• Enchance your .NET, Azure and SQL skillset with us

Requirements

• SRE and Troubleshooting - theory, basic knowledge
• .NET/C# - theory (till async, multithreading, GC, DI) + coding task
• Azure DevOps CI/CD: Pipelines, ARM Templates
• Azure KeyVault, Azure BlobStorage, Azure VM, Azure SQL, App Service, Azure Functions, Networking
• Git, Nuget
• PowerShell - commands, modules, scripts
• Integration/Unit Tests development experience - theory

Nice to Have

• MS Build
• Azure Active Directory
• Azure Service Bus, Service Bus, Event Grid

We’re looking for a skilled .NET C# Developer. 

If you’re passionate about building secure, scalable APIs, working with established systems while helping guide our shift toward the cloud, and are excited by the opportunity to explore machine learning integration—this is your chance to be part of something that truly matters. 

Core Responsibilities: 

• API Development: Design, build, and maintain RESTful APIs using .NET C#, focusing on performance, reliability, and security. 
• Entity Framework & SQL: Develop efficient data models using Entity Framework Core, and write optimized SQL queries for relational databases like SQL Server. 
• Cloud Transition Support: Contribute to new development efforts that utilize Azure services (e.g., Azure Functions, App Services, Azure SQL) as we begin migrating from on-prem infrastructure. 
• Machine Learning Integration: Collaborate with stakeholders to integrate machine learning models via RESTful APIs or Azure ML services. 
• Clean, Maintainable Code: Follow best practices to write testable, maintainable, and well-documented code. 
• Cross-Team Collaboration: Work closely with fellow developers and business partners to deliver secure, scalable solutions. 
• CI/CD Practices: Support continuous integration and delivery efforts using tools like GitHub Actions. 
• Problem Solving: Investigate and resolve performance issues, bugs, and bottlenecks in existing systems. 

Requirements 

• 3+ years of professional experience in .NET C# development 
• Proficiency with Entity Framework (preferably EF Core) 
• Strong command of SQL, including complex query writing and optimization 
• Experience building RESTful APIs with ASP.NET or ASP.NET Core 
• Familiarity with version control systems, especially Git 
• Solid problem-solving and debugging skills 
• Ability to communicate effectively and work independently or as part of a team 

Nice-to-haves 

• Exposure to Azure services such as App Services, Azure SQL, and Azure Functions 
• Basic understanding of machine learning model integration via APIs or Azure ML 
• Familiarity with OData, microservices, and distributed systems concepts 
• Experience writing unit tests (e.g., xUnit, NUnit, MSTest) 
• Knowledge of CI/CD practices, especially using GitHub Actions 
• Interest or experience in DevOps practices and automation  

Blackthorn Vision is looking for a Middle .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.

Please note: we’ll primarily consider candidates based in Lviv, as the project team is located there.

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;
• Proven ability to take ownership of features and drive them to production with minimal supervision;
• Product-oriented mindset: ability to see beyond implementation details and understand user impact and business value;
• Proactive and self-driven approach to problem-solving and decision-making;
• Experience collaborating with cross-functional teams (Product, Support, etc.);
• English level: Upper-Intermediate.

Responsibilities:

• Develop and maintain high-quality software solutions using .NET 8.0.
• Take end-to-end ownership of feature delivery: from requirements clarification and architecture design to implementation, testing, and release;
• Design scalable and maintainable solutions aligned with product goals;
• Drive technical decisions and take responsibility for their outcomes;
• Participate actively in Agile processes (sprint planning, refinement, reviews, retrospectives);
• Conduct and contribute to code reviews to maintain high code quality and consistency;
• Produce clear technical documentation, including architecture diagrams and feature specifications;
• Support onboarding of internal teams (e.g., Customer Support) to newly delivered functionality;
• Identify improvement opportunities in the system and proactively suggest solutions;
• Contribute to team knowledge sharing and support less-experienced engineers as needed.

We're seeking a talented .NET Developer to help shape the future of blockchain technology in innovative startup. If you're ready to make a real impact in a cutting-edge industry, we'd love to hear from you!
 

Core Competence:
 

• At least 2 years of professional experience in software development with a strong foundation in C#, ASP.NET Core, and Entity Framework.
• Proficiency in managing IIS, MS SQL, Visual Studio, and Docker environments.
• Familiarity with ODBC, LINQ, NUnit, xUnit, NuGet, and RESTful APIs, alongside Git for version control.
• Sound understanding of client-side and server-side architectures.
• Strong analytical thinking, with a structured, math or engineering-oriented mindset and a focus on delivering results.
   

Preferred Qualifications:
 

• Knowledge of ReSharper, experience with Azure, and familiarity with NoSQL databases.
• Experience with AWS and Linux system administration is an asset.
• Active participation in hackathons demonstrates innovative thinking and problem-solving skills.
• Upper-intermediate level of English for clear and effective communication in a global team.
   

What We Offer You:
 

• Competitive Compensation: Your skills and experience will be rewarded with a salary aligned with industry standards and your career ambitions.
• Innovative Work Environment: Be part of a forward-thinking FinTech startup with a culture of continuous learning, including tech talks and participation in hackathons.

• 20 paid vacation days, 3 paid sick days, and a flexible schedule for work-life balance.

   

Job Description

Primary Backend Skills:
Framework: Deep expertise in the .NET 8 Framework, specifically for building Web APIs.
Data Access: Proficiency with Entity Framework for ORM.
Testing: Skills in writing unit tests for backend services using XUnit, NUnnit.
API Documentation: Experience using Swashbuckle to generate and maintain Swagger documentation.

Primary Frontend Skils:
Framework: Expertise in the Angular 14, 16, 18; Angular Material UI
Nice-to-have: Experience with RxJs

Preferred, Not Required Skills
Version Control: Proficiency with Git and GitLab.
Collaboration: Experience working with Jira and Confluence.

Job Responsibilities

Working in Scrum team and perform function of senior software developer doing software modules architecture, design, development, unit and integration testing and deployment.

Department/Project Description

Partner is one of the leaders in design, development and manufacturing data communications equipment for the industrial Internet of Things — connecting physical assets to business processes to deliver enhanced value.

Developing cloud-based platform hosted on Azure using .NET tech stack. The platform interacts with different corporate services in order to support business processes across company in manufacturing, engineering, sales, shipping, etc.

Skill Category

.NET

Keyskills - Must Have

• .NET
• Entity Framework
• MS SQL Server
• ReactJS
• AngularJS
• Azure

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 Middle .NET Developer with strong .NET fundamentals who is ready to invest in learning the Acumatica Framework (Onboarding guide - https://www.acumatica.com/developers/onboarding-new-acumatica-developers/) and ERP domain. Acumatica development is not generic .NET development - it is a specialized framework built on .NET and tightly coupled with ERP and financial processes.

This role requires a long-term, multi-year commitment, as becoming productive on the Acumatica platform represents a significant investment from both the developer and Sprinterra.

Candidates must have upper-intermediate English proficiency or higher. 

Existing experience with Acumatica or other ERPs is a strong plus but not required.

About Sprinterra

Sprinterra is an Acumatica Partner and active participant in the Acumatica Development Network (ADN) program. We provide consulting and development services based on the Acumatica xRP Platform and Acumatica ERP. Our work ranges from simple UI and screen customizations to the design and development of complete ERP modules, business logic extensions, and complex integrations with third-party systems. Learn more about what we do here: https://www.sprinterra.com/acumatica/knowledge-base/

Technology Stack

• .NET Framework (C#)
• Acumatica xRP Framework
• ASP.NET Web Forms
• MS SQL / T-SQL
• JavaScript, TypeScript, HTML, CSS
• IIS
• Git, Jira

Required Technical Skills

.NET / C# (Strong Required)

• Deep understanding of OOP principles (inheritance, interfaces, polymorphism)
• Practical experience with attributes and reflection
• Generics and advanced type usage
• Delegates, events, anonymous methods, and lambda expressions
• ORM experience (LINQ to SQL and/or Entity Framework)

ASP.NET & Web Architecture

• Hands-on experience with ASP.NET Web Forms
• Understanding of ASP.NET application lifecycle
• Application state management
• Client-side vs server-side execution
• Debugging and profiling using Visual Studio
• Web services and RESTful API development

Front-End

• Solid understanding of JavaScript, HTML, and CSS
• Ability to debug UI and client-side issues

Databases

• Strong MS SQL and T-SQL skills
• Writing and optimizing complex queries (joins, subqueries, aggregates)
• Understanding relational data models and schema design
• Awareness of performance considerations in ERP systems

Infrastructure & Tooling

• IIS configuration and deployment of ASP.NET applications
• Securing and managing IIS environments
• Experience using Git for version control
• Experience working with Jira or similar task tracking tools

ERP & Domain Knowledge

• Willingness to learn ERP and financial concepts (GL, AR, AP, inventory, workflows, posting logic)
• Experience with ERP systems or financial software is a strong advantage

Responsibilities

• Learn and apply the Acumatica xRP Framework and ERP architecture
• Develop customizations, extensions, and integrations for Acumatica ERP
• Design and implement business logic aligned with ERP and accounting rules
• Participate in internal development projects 
• Participate in client projects 
• Follow coding standards, best practices, and delivery processes

Trial Period Expectations

During the trial period, the developer is expected to:

• Complete all required Acumatica Developer Training programs (https://www.acumatica.com/acumatica-developer-training/)
• Obtain relevant Acumatica certifications
• Successfully deliver a test project demonstrating understanding of the framework

Candidates are encouraged to explore Acumatica documentation, community forums, and technical blogs to build familiarity with the platform.

Who This Role Is NOT For

This role is not a good fit if:

• You are looking for short-term or contract-based work
• You prefer frequently changing technologies and frameworks
• You are not interested in ERP, accounting, or business process logic
• You are not willing to invest time in learning a specialized framework
• You expect to be productive immediately without a learning phase
• Your English level is below upper-intermediate
• You are seeking a purely front-end or non-ERP development role

What We Offer

• Long-term career growth in a specialized ERP ecosystem
• Structured Acumatica training and certification path
• Mentorship from experienced Acumatica developers
• Exposure to complex, real-world enterprise and integration projects
   

About SYNTECH Digital

We are an official Creatio partner and product company. SYNTECH builds and maintains 17+ Marketplace apps (Kanban, Gantt, Calendar, Pivot, Map, HRM, Manufacturing, and more) and delivers complex CRM/ERP implementations for clients across logistics, manufacturing, finance, and HR industries.

Responsibilities
    •    Develop and customize solutions on the Creatio platform: C# schemas, business processes, event listeners, scheduled jobs, and server-side scripts
    •    Build WCF / Web API services and integrations with external systems (Google APIs, payment gateways, ERP platforms)
    •    Contribute to SYNTECH’s proprietary Marketplace component suite (Angular Freedom UI components, back-end services)
    •    Write efficient SQL queries for PostgreSQL and MS SQL; optimize performance on large datasets
    •    Participate in technical pre-sales: architecture design, effort estimation, client communication
    •    Conduct code reviews, maintain technical documentation, support live projects
    •    Collaborate with the team via Git and CI/CD workflows

Requirements
    •    2+ years of commercial experience with C# / .NET (ASP.NET, Web API, WCF)
    •    Hands-on knowledge of the Creatio platform: EntitySchemaQuery, schemas, packages, Process Designer, Freedom UI
    •    Confident JavaScript / TypeScript (Angular or Backbone.js / Ext JS)
    •    Experience with SQL — PostgreSQL or MS SQL
    •    Solid understanding of SOLID, DRY, KISS principles
    •    Proficiency with Git
    •    English — B1+
Nice to Have
    •    Angular Freedom UI component development for Creatio
    •    Experience integrating Google Drive, payment APIs, ERP
    •    Familiarity with Creatio Marketplace package publishing process
    •    SignalR / real-time apps, Docker / container deployments

We Offer
    •    Competitive salary discussed individually
    •    Work on real products sold on Creatio Marketplace — not just client customizations
    •    Growth path to Tech Lead / Solution Architect
    •    Flexible 5-day schedule, fully remote
    •    24 days paid vacation
    •    Direct participation in pre-sales and product architecture decisions