Bliscore

Location:  Hybrid, Lviv 
Type: Full-time
Experience: 0,5+ years
English: Upper-Intermediate

We’re looking for a talented Full Stack Developer to join a long-term project focused on building an intelligent call center solution. The platform helps businesses manage high volumes of customer communication efficiently — including real-time dashboards, smart call routing, CRM integration, and VoIP services.

This is a hands-on development role where your ideas will matter — the client is open to improvements and values technical input.

Tech Stack:

• Backend: .NET 6+, C#
• Frontend: React.js, TypeScript
• Database: MS SQL
• Integrations: Twilio, WebRTC, SignalR

• Cloud: Azure (optional)

   

What You'll Do:

• Build new features and maintain existing functionality
• Integrate telephony and CRM systems via APIs
• Optimize application performance and scalability
• Participate in technical discussions, estimations, and code reviews

• Work closely with the product owner and distributed team

   

Requirements:

• 0.5+ years of experience with .NET (C#) and React.js
• Strong understanding of web architecture and client-server communication
• Experience with REST APIs, relational databases, and version control systems
• Good spoken and written English (B2 level or confident B1+)

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.

.NET Engineer | Microsoft Teams & Voice Communications

We are looking for a .NET Engineer to join our product team working on a voice communication platform with deep Microsoft Teams integration.

This role is focused on backend development and communication-related functionality, including calls, meetings, recordings, and communication data. You will work with Microsoft Teams and Microsoft Graph APIs, develop new features, maintain existing integrations, and troubleshoot production issues.

We are looking for an engineer with commercial experience in Microsoft Teams integrations and a good understanding of how communication and voice functionality works in real-world products.

What you’ll do

• Develop, maintain, and optimize backend services using C#, .NET, and ASP.NET Core.
• Design and support integrations with Microsoft Teams, Microsoft Graph API, and Teams communication APIs.
• Build and enhance functionality for calls, meetings, recordings, and communication data.
• Design, develop, and maintain Microsoft Teams bots hosted on Azure, including real-time activity processing and notifications.
• Implement and improve Teams activity feed notifications using Microsoft Graph API.
• Develop and maintain REST APIs and third-party integrations.
• Deploy, configure, and manage bots and backend services on Azure (Bot Service, App Service, AKS).
• Configure bot authentication, authorization, and permissions using Microsoft Entra ID (Azure AD).
• Troubleshoot production issues, monitor system performance, and ensure service reliability.
• Improve the performance, stability, and scalability of the platform.

• Collaborate with the team on technical solutions, architecture, and continuous platform improvements.

   

What we’re looking for

• 3+ years of commercial experience with C# / .NET
• Strong experience with ASP.NET Core
• Commercial experience with Microsoft Teams integrations
• Hands-on experience with Microsoft Graph API
• Experience with Teams calls, meetings, recordings, or communication APIs
• Experience building REST APIs and integrations with external services
• Good knowledge of SQL and relational databases
• Solid understanding of backend architecture and integration patterns
• Experience troubleshooting production issues
• Ability to work independently and take ownership of technical tasks

• English — B2+

   

Experience that will be highly relevant

For this role, we are particularly interested in experience with:

• Microsoft Graph Communications API
• Microsoft Teams Calls & Meetings APIs
• Teams compliance recording or call-recording solutions
• VoIP and telephony systems
• Voice communication or contact center products
• Real-time audio or media processing
• WebRTC
• SIP / RTP
• SignalR / WebSockets

• Azure

   

What we offer

• Flexible work format — remote or hybrid, with an office in Lviv
• 18 paid vacation days + 5 sick days
• 10 additional days off per year
• Regular performance reviews and feedback
• Professional growth and development opportunities
• Mentorship and support from experienced colleagues
• Accounting support
• Free lunches at the office
• Team events and company gifts

• Anniversary gifts

   

If you have strong .NET backend experience and have worked hands-on with Microsoft Teams, Microsoft Graph, calls, meetings, recordings, VoIP, or voice communication systems, we’d be happy to hear from you.

.NET Full-Stack Engineer -  Microsoft Teams Bots & Communications
 

We’re looking for an experienced .NET Full-Stack Engineer to join a long-term product team working within the Microsoft Teams ecosystem.
 

The role is primarily backend-focused and combines Microsoft Teams bots, Microsoft Graph integrations, real-time activity processing, notifications, and communication-related functionality.
 

You’ll work on production features inside Microsoft Teams, including bot interactions, activity feeds, communication events, and integration with Microsoft 365 services.
 

What you’ll work on

• Design, develop, and maintain Microsoft Teams bots that process user and system activity in real time.
• Build and improve a real-time activity feed bot that sends timely notifications to users’ Teams activity feed through Microsoft Graph.
• Develop integrations with Microsoft Graph API, Microsoft Teams APIs, and Microsoft 365 services.
• Work with Teams-related functionality such as calls, meetings, participants, recordings, call records, notifications, and communication data.
• Build backend services for collecting, processing, and exposing Teams activity and communication data.
• Implement real-time functionality using SignalR / WebSockets where applicable.
• Set up and manage bot authentication and permissions with Microsoft Entra ID (Azure AD).
• Contribute to frontend functionality using React / Angular / TypeScript when needed.
• Troubleshoot application-level integration issues and improve reliability and performance.
   

Core stack

• C# / .NET / ASP.NET Core
• Microsoft Graph API
• Microsoft Teams APIs
• Microsoft Graph Communications / Cloud Communications APIs
• Microsoft Bot Framework / Teams bots
• Microsoft Entra ID
• SignalR / WebSockets
• SQL
• REST APIs
• React / Angular / TypeScript
   

Requirements

• 5+ years of commercial experience with C# / .NET
• Strong backend experience with ASP.NET Core
• Commercial experience with Microsoft Graph API
• Hands-on experience with Microsoft Teams integrations
• Experience developing or supporting Teams bots
• Understanding of Teams activity feed notifications, Graph permissions, authentication, and event-driven integrations
• Experience with Microsoft Entra ID / Azure AD authentication and permissions
• Experience with SQL and REST APIs
• Ability to independently deliver integrations and troubleshoot production issues
• English B2+
   

Strong advantage

• Microsoft Graph Communications / Cloud Communications APIs
• Teams calls / online meetings / call records / recordings / participants
• Real-time audio/media
• VoIP / telephony
• WebRTC
• SIP / RTP
• Direct Routing
• Azure Communication Services
• High-load or distributed systems
   

About the project

This is a long-term product, not a short-term integration project. You’ll join a stable development team with an ongoing roadmap and deep involvement in the Microsoft Teams ecosystem.

The role combines backend engineering, cloud infrastructure, Microsoft Graph integrations, Teams bot development, and real-time communication functionality.
 

What we offer

• Long-term cooperation
• Full-time engagement
• Stable US-based client
• Predictable workload
• Paid vacation and sick leave
• Professional development support
• Equipment provided
• Office lunches
• Anniversary and baby bonuses

We are looking for a motivated Junior .NET + React Developer with 1+ years of commercial experience to join our development team.

The ideal candidate has a solid backend development foundation, experience with React, and a willingness to grow as a Full-Stack Developer.
 

Requirements

• 1+ years of commercial software development experience.
• Good knowledge of C# and .NET / ASP.NET Core.
• Solid understanding of backend development principles, REST APIs, and database integration.
• Practical experience with React.js, JavaScript, or TypeScript.
• Experience working with relational databases (SQL Server or PostgreSQL).
• Familiarity with Microsoft Azure and cloud-based services.
• Understanding of Git and software development best practices.
• English level: B1–B2.
   

Nice to Have

• Experience with Azure App Services, Azure Functions, or Azure DevOps.
• Knowledge of Entity Framework Core.
• Experience with unit testing.
• Understanding of CI/CD processes.
• Work in a hybrid format.
   

Responsibilities

• Develop and maintain web applications using .NET and React.
• Build and integrate RESTful APIs.
• Work on both backend and frontend features, with a stronger focus on backend development.
• Collaborate with developers, QA engineers, and other team members.
• Participate in code reviews and technical discussions.
• Troubleshoot issues and improve application performance.

• Continuously learn and apply modern development practices.

   

You’ll get:

• A stable product with a long-term roadmap
• Direct cooperation with a US-based client
• Predictable, long-term workload
• Transparent compensation
• Paid vacation and sick leave
• Professional development support
• High-quality equipment
• Paid office lunches
• Anniversary gifts and baby bonus

.NET Full-Stack Engineer & Microsoft Teams Audio & Communications

We’re looking for an experienced .NET Full-Stack Engineer to join a long-term product development team working on communication functionality within the Microsoft Teams ecosystem.
 

This is not a short-term integration project. You’ll be joining a stable, long-term product where Microsoft Teams communication, audio, meetings, and related data are core parts of the platform.

The role is primarily backend-focused, but you’ll also contribute to frontend functionality when needed.

What you’ll be working on

You’ll develop and maintain functionality around Microsoft Teams voice and communication workflows, including:

• Teams calls and online meetings
• Audio and communication data
• Meeting participants and call-related metadata
• Recordings and communication events
• Microsoft Graph and Graph Communications integrations
• Backend services responsible for collecting, processing, and exposing communication data
• Real-time functionality and integrations with other product components
• Supporting frontend features in React 
   

Core technologies

• C# / .NET / ASP.NET Core
• Microsoft Graph API
• Microsoft Graph Communications / Cloud Communications APIs
• Microsoft Teams APIs
• Azure
• SQL
• REST APIs
• SignalR / WebSockets
• React
   

What we’re looking for

• 5+ years of commercial C#/.NET experience
• Strong backend development experience with ASP.NET Core
• Commercial experience with Microsoft Graph
• Experience with Microsoft Teams communication APIs
• Practical experience working with Teams audio, calls, meetings, recordings, participants, or call data
• Microsoft Graph Communications / Cloud Communications APIs is a must!
• Solid SQL knowledge
• Ability to work independently with integrations and production functionality
• English B2+
   

You’ll get:

• A stable product with a long-term roadmap
• Direct cooperation with a US-based client
• Predictable, long-term workload
• Transparent compensation
• Paid vacation and sick leave
• Professional development support
• High-quality equipment
• Paid office lunches
• Anniversary gifts and baby bonus
   

Full-time · Long-term cooperation · Remote/Hybrid