Jobs C# / .NET

We’re hiring a Full-Stack .NET Developer to build secure, scalable web applications and APIs. You’ll work across the stack using .NET Framework, C#, JavaScript, HTML, CSS, and Web API, with a strong emphasis on authentication and integration (OIDC/OAuth2, WebAuthn/passkeys, and Microsoft Entra ID/Azure AD). Your initial focus will be on developing and onboarding workflows for HP multifunction devices. Over time, you may also contribute to other projects built on .NET Core, SQL/Entity Framework, and modern front‑end frameworks such as Vue.

Responsibilities

• Design, implement, and maintain ASP.NET services and RESTful Web APIs.
• Build and enhance front-end components using JavaScript, HTML, and CSS.
• Implement and integrate authentication flows (OIDC/OAuth2 and WebAuthn/passkeys).
• Configure and manage identity solutions using Microsoft Entra ID/Azure AD.
• Ensure application security, performance, and reliability with proper logging and monitoring.
• Manage source control and branching strategies using Git.
• Collaborate with Product and Operations teams on requirements and deployments.
• Document architecture, APIs, and operational procedures.

Requirements

• 3–5+ years building web applications with C#, .NET Framework/.NET, and ASP.NET and Web API.
• Strong experience with RESTful API design and best practices.
• Front-end fundamentals: JavaScript, HTML, CSS.
• Hands-on experience with authentication flows (OIDC/OAuth2 with PKCE, token lifecycles, scopes/claims).
• Practical experience implementing WebAuthn/passkeys.
• Proficiency with Microsoft Entra ID/Azure AD for authentication and authorization.
• Strong knowledge of Git for version control and collaboration.
• Familiarity with Visual Studio and CI/CD workflows.
• Understanding of secure coding practices and OWASP Top 10.

Nice-to-Have

• Experience with Azure AD B2C, conditional access policies, and multi-tenant apps.
• Entity Framework, SQL Server/PostgreSQL; basic query optimization.
• Familiarity with Azure, containerization (Docker), and cloud deployments.
• Experience with Vue UI development.

We are looking for a motivated Junior .NET Developer to join our team!

About the Project:
A platform for mobile operators focused on invoicing, billing, and notifications. The solution helps both individual and business customers manage mobile services, control expenses, handle subscriptions, renew contracts, and activate SIM cards efficiently.

Requirements:
— Good knowledge of SQL;
— SQL Server experience (must have);
— Basic Knowledge of .NET / .NET Core;
— Experience with SQL and ADO.NET;
— Experience with Git (version control);
— Experience working with Jira (task and project tracking);
— Experience with Dapper is preferred;
— Intermediate / Upper-Intermediate level of English;
— Ability to work with and optimize existing codebases.

Would Be a Plus:
— Experience in Telecom or working with payment systems;
— Familiarity with telecom invoicing, billing, and notification systems.

Responsibilities:
— Develop, maintain, and enhance web and desktop applications using .NET technologies (including .NET 7 or higher);
— Design and implement database queries and scripts using SQL Server;
— Work with ADO.NET to manage data access layers and interact with SQL databases;
— Build and consume Web APIs for seamless integration with other systems;
— Participate in the full software development lifecycle — design, coding, testing, and deployment;
— Collaborate with cross-functional teams to define, design, and deliver new features;
— Debug and troubleshoot issues across the stack, particularly within .NET and SQL components;
— Follow best practices related to code quality, testing, and CI/CD deployment processes;
— Contribute to improving existing systems and optimizing performance.

We Offer:
— Monday–Friday working schedule (9:00–18:00 / 10:00–19:00);
— Work format: office / remote / hybrid;
— Medical insurance;
— No time trackers or excessive bureaucracy;
— Paid days off and sick leave;
— Gifts for birthdays and professional holidays;
— Opportunity to test your ideas, lead initiatives, and try new and interesting things;
— Collaboration with experienced specialists willing to share their knowledge;
— Participation in internal and external events, with opportunities to build or promote your personal brand.

Technology Stack: C#, PowerShell, C++

Overlap requirement: 1–3 hours daily overlap with PST business hours (until 10 am PST)

Locations: Fully remote from Serbia, Egypt, Croatia or Poland or from our offices in Belgrade / Gdynia/Cairo.

About the project:
We are looking for a Middle Software Development Engineer to join the Build Acceleration Team and help accelerate and optimize build processes for Windows OS and Engineering Systems.
The role focuses on improving build performance, security, and reliability by reducing technical debt, cleaning up unused code, and eliminating Foreign Checked-In Binaries (FCIBs), with Project Streamline as a core area of responsibility.

Key Responsibilities:

• Run and maintain Project Streamline workflows to clean up Windows OS codebase
• Identify, analyze, and prioritize FCIBs and unused code for removal
• Create and validate PRs using Streamline tooling and CI pipelines
• Collaborate with code-owning teams, follow up on PR reviews, and drive changes to completion
• Monitor OS branch health after check-ins; investigate issues, apply fixes or revert changes when needed
• Contribute to remediation of SFI / QEI action items for Build-related areas
• Report bugs and propose improvements for Project Streamline tooling

Requirements – Middle Level

• 3–4 years of software development experience
• Practical experience with C# and PowerShell
• Basic knowledge of C++
• Understanding of CI/CD pipelines and PR-based workflows
• Attention to quality, stability, and impact of changes

Nice to have:

• Experience working with Windows OS repositories
• Knowledge of Azure DevOps (AzDO) Pipelines
• Background in build system optimization and performance improvements

Benefits:

• Paid vacation and sick leave
   
• Official state holidays — 11 public holidays per year
   
• Professional growth through challenging projects and the opportunity to master new technologies
   
• Flexible working schedule: 8 hours per day, 40 hours per week
   
• Personal Career Development Plan (CDP)
   
• Employee support programs (discounts, healthcare, legal assistance)
   
• Paid external training, conferences, and professional certifications aligned with business goals
   
• Internal workshops, seminars, and English classes
   
• Corporate library with paper and e-books
   

If you are a motivated Back-End Developer seeking a challenging opportunity to work on impactful cloud projects, this position is perfect for you. Join our team at Akvelon and contribute to building innovative solutions that make a difference.

Project Description:

Our team is responsible for the development, integration, and support of corporate information systems designed to help business processes run with maximum efficiency.

We develop a set of software products used by 15k+ Luxoft employees. Our solutions automate a wide range of business processes, including client relationship management, contract workflows, purchasing, business travel, budget planning, invoicing, recruitment, personnel administration, and time and resource management.

We are looking for an experienced Software Developer with deep knowledge of architectural approaches to software design and implementation.

Responsibilities:

• Be part of an agile development team
• Participate in microservices architecture implementation
• Participate in architecture and system design reviews
• Understand the concepts of Clean Architecture and DDD
• Be able to conduct code reviews
• Have experience with the .NET 9 tech stack
• Be able to write maintainable code

Mandatory Skills:

• Artificial Intelligence (AI)

Mandatory Skills Description:

- .NET 9
- DDD
- Clean Architecture
- Angular 19
- MS SQL

Nice-to-Have Skills Description:

- Advanced English
- Azure Kubernetes Services
- Azure DevOps (CI-CD, Docker, HELM)
- Enterprise Architecture
- EF Core
- Microservices architecture
- Elastic
- Redis

Languages:

English: B2 Upper Intermediate

About your key responsibilities and impact:

• Designing and implementing scalable and efficient software architectures;
• Writing, testing, and debugging complex code for new and existing software applications;
• Providing guidance and mentorship to junior engineers and team members;
• Conducting thorough code reviews to ensure code quality, security, and best practices;
• Creating and maintaining comprehensive technical documentation for software development and system design;
• Leading and managing software development projects, ensuring timely delivery and quality (shared responsibility with the Delivery Manager);
• Working closely with cross-functional teams, including product management, design, and operations, to align development efforts with business goals;
• Researching and implementing new technologies and methodologies to improve software performance and development processes;
• Identifying and resolving complex software issues and technical challenges;
• Driving continuous improvement in software development practices and processes;
• Communicating effectively with stakeholders, including presenting technical concepts and project updates;
• Delivering code to production in a timely manner according to business expectations.

Essential professional experience:

• 3+ years of experience in back end;
• System Design & Architecture – strong experience designing scalable, resilient .NET systems using microservices, event-driven and cloud-native architectures (Azure/AWS);
• Backend Expertise – advanced C# skills, RESTful API development, asynchronous programming, and deep understanding of design and resilience patterns (DDD, CQRS, circuit breaker, etc.);
• Database Mastery – proficiency in SQL optimization, data modeling, indexing, and experience with both relational and NoSQL databases;
• Messaging & Performance – hands-on Kafka expertise, high-load system optimization, caching, and distributed computing;
• DevOps & Cloud – solid experience with CI/CD pipelines, Docker/Kubernetes, and infrastructure automation;
• Quality & Observability – strong focus on testing (xUnit, NUnit), monitoring (Serilog, App Insights), and secure coding practices;
• Leadership & Collaboration – mentoring peers, driving technical decisions, and ensuring engineering excellence within Agile teams;
• Languages – Intermediate+ English, B2+ Ukrainian/Russian

Company overview:
 

Graphio.ai stops revenue loss before it happens by detecting broken handoffs between teams.
 

We analyze API-enabled metadata from your existing systems to automatically identify when Sales, Customer Success, Legal, Finance, Product, and Operations are misaligned - before deals stall, renewals fail, or contracts slip.
 

No workflow changes. Fast rollout in less than 2 days.

AI learns what successful execution looks like in your company and alerts you to dangerous deviations in real time.

We’ve built and scaled before: the team behind Graphio.ai previously built upSWOT, a B2B platform adopted by hundreds of financial institutions, which was later acquired by Uptiq.  We’re applying those lessons in execution, delivery, and scale to Graphio.ai.

Supported by senior leaders from Experian, Mastercard, Lattice, BambooHR, Altrata, SAP, JackHenry, FIS, Pfizer, Workday, Customertimes, and more (graphio.ai/investors).

Position Overview:

We are looking for a Junior/Middle Backend Developer to help build and maintain the backend services that power Graphio.ai’s workflow intelligence product.

In this role, you will work on C# / .NET–based APIs and backend services that support customer onboarding (workspace setup and invites), system integrations, metadata ingestion and processing, and generation of user-facing outputs such as weekly/monthly reports and alerts.

You will join a small team where shipping, reliability, and clean engineering practices matter. This is a role for someone who wants to grow fast by working on real production systems, with support from senior engineers and clear technical direction.

Key Responsibilities:

• Build and maintain backend services and REST APIs using C# / .NET (ASP.NET Core) that powers core Graphio.ai flows: workspace setup, user access, system integrations, metadata ingestion, reporting, and alert delivery.
• Write clean, maintainable code and follow team standards; contribute to refactoring and long-term code health when needed.
• Work on ingestion and processing of metadata (events, entities, timestamps, identifiers) used for workflow intelligence and reporting.
• Design and implement asynchronous and event-driven processes using RabbitMQ (queues, background jobs, retries, idempotency).
• Improve API reliability and performance: clear contracts, consistent error handling, pagination, and rate limiting.
• Work with databases:
  • MongoDB for operational and metadata storage,
  • ClickHouse for analytics, aggregations, and reporting workloads.
• Write and optimize queries, design schemas and indexes, participate in migrations, and help ensure data integrity and consistency.
• Implement authentication, authorization, and secure-by-default practices (permissions, tenant boundaries, safe handling of sensitive data).
• Write unit and integration tests; participate in code reviews and apply feedback quickly.
• Monitor and troubleshoot services in production: use logs, metrics, and tracing; contribute to root-cause fixes.
• Document backend services and APIs: how they work, how to run locally, and how to debug common issues.
• Contribute to engineering workflows: Git-based collaboration, containerized development (Docker), and CI/CD practices.
• Collaborate with Product, Frontend, and Engineering peers to deliver features in small, shippable increments in a remote environment.

Required Qualifications:

• 1–2 years of backend development experience (or equivalent production experience through projects).
• Strong knowledge of C# and .NET (ASP.NET Core, Web API).
• Experience building REST APIs, including authentication, authorization, error handling, pagination, and versioning.
• Hands-on experience with MongoDB: schema design, indexes, aggregations, and query optimization.
• Understanding of analytical databases; experience with or willingness to learn ClickHouse (aggregations, partitioning, performance tuning).
• Experience with message queues and background processing; RabbitMQ is a strong plus.
• Understanding of asynchronous processing, eventual consistency, and retry mechanisms.
• Knowledge of secure engineering basics (auth, permissions, data protection).
• Comfortable working in a remote team: clear written communication, ownership of tasks, and predictable delivery.

Nice to Have:

• Experience building event-driven architectures and data pipelines.
• Experience working with large datasets and performance optimization.
• Familiarity with observability tools (logging, metrics, tracing).
• Startup experience or proven ability to move fast without heavy process.
• Experience with Kubernetes or cloud platforms (AWS, GCP, Azure).

What we offer:

• A practical growth role on real backend services used by customers, with clear feedback and mentorship from senior engineers.
• Work on meaningful product flows: metadata processing, workflow intelligence outputs, and reporting/alerts.
• A startup environment with low bureaucracy and fast iteration - you ship, learn, and improve quickly.
• Remote-friendly team with a simple setup and high trust.
• Competitive compensation (based on level) and growth opportunities as the team scales.

Company Operating Requirements:

At Graphio.ai we run a high-ownership, mission-driven team with clear operating rules. Please read these carefully before applying:

• LinkedIn profile is required (company policy). Employees are required to keep a current LinkedIn profile that shows their Graphio.ai position and is linked to the official Graphio.ai company page (company logo visible on the profile). Profile standards are provided during onboarding.
• Synchronized team vacations. The team takes coordinated time off four times per year to keep planning aligned and reduce context switching. Dates are announced in advance.
• Startup constraints. Vacation timing may be restricted during critical company periods. We plan time off as a team and communicate constraints early.
• Relocation readiness. Team members may reside in Ukraine, but must be prepared to relocate with their families to Europe or the United States if the company requests it and it becomes legally possible. Any relocation would be discussed in advance.
• Non-standard schedule. The role requires flexibility to collaborate across time zones. This may occasionally include early/late meetings depending on customer and team needs.
• Zero slow offboarding. We run lean and fast. When the fit isn’t there, we act quickly: employment may be ended within a day and access is removed immediately.

Application requirement: short intro video (required):

Please include a short self-introduction video (2–5 minutes). You can add the link directly to your resume or submit it through the hiring platform in any available way (YouTube, Loom, Google Drive, or similar).

• No need for a polished production, a simple smartphone recording is perfectly fine.
• This does not replace live conversations, it only helps us speed up the first screening and understand your communication style and motivation.
• In the video, please cover:
  • Who you are and 2–3 measurable outcomes you delivered in recent roles
  • Why you are applying for this role at Graphio.ai
  • Why you are leaving or have left your previous role
  • Your view on how a high-ownership startup team should operate (pace, ownership, communication, and work-life balance expectations)
• Applications without the video may not be reviewed.

Final note:

Graphio.ai is not a 9-to-5 corporate environment. We move fast, operate with high ownership, and expect proactive execution without micromanagement. Graphio.ai is a strong fit for people who actively seek challenges for personal growth - especially those who want to build their own company one day and see this as a place to learn how high-performing startups execute.

Screening requirements (please read first):

• Non-negotiable: hands-on experience building or supporting production back-end systems for process mining or task mining and ML/AI-driven workflow analysis (pipelines, workflow reconstruction, model-serving integration, evaluation/monitoring, scalable APIs).
• Required: a 2–5 minute intro video link in your resume or via the platform (smartphone recording is fine). Applications without the video may not be reviewed.

Company overview:
 

Graphio.ai stops revenue loss before it happens by detecting broken handoffs between teams.
 

We analyze API-enabled metadata from your existing systems to automatically identify when Sales, Customer Success, Legal, Finance, Product, and Operations are misaligned - before deals stall, renewals fail, or contracts slip.
 

No workflow changes. Fast rollout in less than 2 days.

AI learns what successful execution looks like in your company and alerts you to dangerous deviations in real time.

We’ve built and scaled before: the team behind Graphio.ai previously built upSWOT, a B2B platform adopted by hundreds of financial institutions, which was later acquired by Uptiq.  We’re applying those lessons in execution, delivery, and scale to Graphio.ai.

Supported by senior leaders from Experian, Mastercard, Lattice, BambooHR, Altrata, SAP, JackHenry, FIS, Pfizer, Workday, Customertimes, and more (graphio.ai/investors).

Position Overview:

We are looking for a Senior AI Backend Engineer to design, build, and scale the core systems behind Graphio.ai’s workflow intelligence platform.

Graphio.ai connects to customer systems, ingests large volumes of event-based metadata, reconstructs real business workflows, and applies machine learning to discover ideal process paths (golden paths), detect anomalies, and surface insights.

This is a hands-on senior role for someone who is equally strong in:

• backend & distributed systems
• data-intensive architectures
• applied machine learning
• experimentation & research
• production-grade reliability

Our core stack: Python, C# (.NET Core / ASP.NET Core), MongoDB, ClickHouse, RabbitMQ.

We are looking for an engineer who deeply understands system architecture, can reason about data at scale, and is comfortable building, training, experimenting with, and deploying ML models into production.

What You Will Do:

Backend & Systems

• Design and build backend services and APIs using Python and C# (.NET Core / ASP.NET Core).
• Architect scalable, fault-tolerant, and observable systems for data ingestion, processing, and analytics.
• Build event-driven and asynchronous pipelines using RabbitMQ.
• Design data models and storage strategies using MongoDB and ClickHouse.
• Own system performance, reliability, and scalability.
• Implement strong observability: logging, metrics, tracing, alerting.
• Troubleshoot production issues, perform root cause analysis, and implement long-term fixes.

Data & Machine Learning

• Design and implement end-to-end ML pipelines: ingestion → feature engineering → training → evaluation → deployment.
• Train and iterate on ML models for workflow discovery, anomaly detection, and pattern recognition.
• Perform feature engineering on large-scale event and metadata streams.
• Run experiments, test hypotheses, and evaluate models using offline and online metrics.
• Conduct applied research: explore new modeling approaches, algorithms, and representations.
• Build batch and near-real-time inference pipelines.
• Monitor model performance, drift, and degradation in production.
• Implement retraining strategies and versioning.

Architecture & Product Thinking

• Define service boundaries, data contracts, schemas, and interfaces.
• Design for multi-tenancy, security, and compliance.
• Make pragmatic architectural decisions balancing speed, quality, and scale.
• Work closely with Product, ML, and Engineering to ship in small, measurable increments.
• Influence the technical direction of the platform.

Required Qualifications:

• 6+ years of experience in backend or systems engineering.
• Strong experience with Python and C# (.NET Core / ASP.NET Core).
• Experience building data-intensive systems (event ingestion, pipelines, analytics).
• Hands-on experience with machine learning:
  • training models
  • feature engineering
  • experimentation
  • evaluation
• Strong understanding of production ML systems (not just notebooks).
• Experience with MongoDB, ClickHouse, or similar databases.
• Experience with message brokers (RabbitMQ or similar).
• Strong understanding of distributed systems concepts:
  • idempotency
  • retries
  • backpressure
  • eventual consistency
  • failure modes
• Strong analytical and problem-solving skills.
• High ownership mindset.

Nice to Have:

• Experience with workflow analytics, process mining, or event-based systems.
• Experience with time-series or behavioral modeling.
• Experience with large-scale experimentation platforms.
• Familiarity with MLOps practices.
• Experience with cost optimization for data & ML workloads.
• Experience with Kubernetes and cloud infrastructure.

Why This Role Is Special:

This is not a typical backend role.
This is not a typical ML role.

You will be building a real AI system, not demos:

• messy real-world data
• real customers
• real scale
• real constraints
• real impact

If you like working at the intersection of systems, data, and intelligence, this role is for you.

What we offer:

• A senior role owning core backend systems behind an AI/ML product with clear, measurable customer impact.
• Direct collaboration with Machine Learning Engineers to bring models into production with reliability and speed.
• Real-world data engineering problems: metadata ingestion, workflow reconstruction, and scalable reporting/alerting.
• Fast iteration, low bureaucracy, and high trust - you ship and see results quickly.
• Remote-friendly team with a simple setup and strong standards.
• Competitive compensation and room to grow as the company scales.

Company Operating Requirements:

At Graphio.ai we run a high-ownership, mission-driven team with clear operating rules. Please read these carefully before applying:

• LinkedIn profile is required (company policy). Employees are required to keep a current LinkedIn profile that shows their Graphio.ai position and is linked to the official Graphio.ai company page (company logo visible on the profile). Profile standards are provided during onboarding.
• Synchronized team vacations. The team takes coordinated time off four times per year to keep planning aligned and reduce context switching. Dates are announced in advance.
• Startup constraints. Vacation timing may be restricted during critical company periods. We plan time off as a team and communicate constraints early.
• Relocation readiness. Team members may reside in Ukraine, but must be prepared to relocate with their families to Europe or the United States if the company requests it and it becomes legally possible. Any relocation would be discussed in advance.
• Non-standard schedule. The role requires flexibility to collaborate across time zones. This may occasionally include early/late meetings depending on customer and team needs.
• Zero slow offboarding. We run lean and fast. When the fit isn’t there, we act quickly: employment may be ended within a day and access is removed immediately.

Application requirement: short intro video (required):

Please include a short self-introduction video (2–5 minutes). You can add the link directly to your resume or submit it through the hiring platform in any available way (YouTube, Loom, Google Drive, or similar).

• No need for a polished production, a simple smartphone recording is perfectly fine.
• This does not replace live conversations, it only helps us speed up the first screening and understand your communication style and motivation.
• In the video, please cover:
  • Who you are and 2–3 measurable outcomes you delivered in recent roles
  • Why you are applying for this role at Graphio.ai
  • Why you are leaving or have left your previous role
  • Your view on how a high-ownership startup team should operate (pace, ownership, communication, and work-life balance expectations)
• Applications without the video may not be reviewed.

Final note:

Graphio.ai is not a 9-to-5 corporate environment. We move fast, operate with high ownership, and expect proactive execution without micromanagement. Graphio.ai is a strong fit for people who actively seek challenges for personal growth - especially those who want to build their own company one day and see this as a place to learn how high-performing startups execute.

Project Description:

We are looking for a senior software engineer to join our team in a derivatives trading company with a broad product portfolio, with specific emphasis on interest rates, currency, and related derivative products.
The candidate will be a key contributor to enhance and maintain our trading system. The role will interact with the larger development team, share design and solutions, and contribute to the overall objectives of the development team.
All the newly built programs, including the Modernisation projects, are developed in C#. For enhancing legacy programs or developing new features of legacy functions, the developers will have to develop in C.

Responsibilities:

- This role will be part of the trading system development team to enhance post-trade processing functions such as payment processing or trade regulatory reporting.
- The role will take responsibility to design and develop applications to enhance existing business functions.
- The role will be involved in projects to migrate legacy systems into new platforms, and as such, he or she has to be a quick learner and also be adaptive to new technologies.
- This role will take responsibility for supporting the trading systems, including providing answers to users' enquiries or resolving batch job issues.
- The role will be part of the development team. He or she will need to follow development standards and contribute to the overall agenda of the team.

Mandatory Skills Description:

- 6-7 years of experience in a large & complex application development environment involving complicated data schemas with C#
- Experience with C/C++ min. 3 years
- 2+ years of experience with leading a team (tech lead, team lead)
- Experience in application designs for complicated process flows
- Experience in analysing and designing complicated Data/Object Relations
- Experience in OOD/OOP, especially in C#
- Strong SQL knowledge
- 2+ years in financial industry, experience with trade flows, trade process, fixed income products
- Experience working with global team, good communication and transpersonal skills
- Must be a good team player and can work cooperatively or independently
- Quick learner and problem solver

Nice-to-Have Skills Description:

- Python knowledge highly preferred
- FIX protocol experience
- messaging systems experience

Languages:

English: B2

Project Description:

You'll be working within UBS Investment Banking team in Poland - Krakow / Wroclaw. The team is specialized on Microsoft technologies (.Net), fast time to market, agile methodology and always with a client centric delivery approach. We are looking for a software developer to help design and build a cutting-edge application for investors to create, manage, and share client portfolios, along with executing trades. This role involves working on high-performance, scalable systems that support real-time investment decision-making. You will be responsible for architecting, developing, and optimizing core backend functionalities while collaborating with global teams to deliver a seamless investor experience. It's a demanding, fast paced and exciting environment

Responsibilities:

• translate business requirements (functional and non-functional) into designs and code
• work with stakeholders drawn from IT and the Business, subject matter experts, vendor teams, enterprise architects and business analysts to develop your code related to our solutions
• drive excellence in: software analysis, design & coding, development methodologies, oral/written communication skills, technology planning, application rationalization analysis
• challenge the status quo and come up with new ideas and solutions

Mandatory Skills Description:

 comprehensive knowledge in Software Engineering with .NET, JavaScript (TypeScript), React.js with Redux, Immutable.js, HTML, CSS, SASS, ASP.NET Core, SQL and TSQL
• Azure Cloud Native development
• good understanding of software development tools (e.g. GIT, Teamcity)
• a verbal communicator, comfortable interacting with colleagues in English

Nice-to-Have Skills Description:

• a strong understanding of the software development lifecycle and Agile methodologies
• experience in a global environment
• a strong problem solver and a good team player
• analytical skilled person who manages to cope with complex challenges in software engineering

English B2

Who We Are
A startup in the field of minimally invasive endovascular decision support, is seeking an experienced .NET Software Engineer to participate in development of cutting edge medical
product. This role involves development of scalable, high-performance AI-powered solutions for medical technologies.

What Youʼll Do

• Design and implement user-friendly, responsive, and scalable Real-Time front-end applications that integrate seamlessly with Python-based AI models and network services
• Collaborate with product managers, designers, and back-end engineers to translate requirements into elegant, efficient, and maintainable code, according to best practicies of software engineering
• Writing technical documentation.
• Drive technical decisions on application architecture, frameworks, and tooling for front-end development within a C# and Python environment
• Optimize application performance, accessibility, and cross-browser compatibility to ensure a best-in-class user experience
• Contribute to continuous improvement in development processes, including CI/CD, unit testing, production deployment and automation
• Stay current with emerging front-end technologies and frameworks, and evaluate their potential adoption within the team
  
  Requirements
• 5+ years of front-end C# development - must.
• Extensive knowledge of building GUI with MVVM frameworks, like WinUI 3 or WPF - must
• Extensive knowledge of Multi-threading / Multi-Processing / Interprocess Communication - must
• Excellent knowledge of software design patterns - must
• Experience with unit testing - must
• Experience with maintenance and deployment in C# and Python environments, working with artifactory like Nexus / nuget - must
• Experience of building windows installers like MSI - must
• High level of Engish - verbal & written - must
• Aditional (Advantage) Requirements
• Experience with Python - huge advantage
• Experience with REST/gRPC - advantage
• Experience with distributed systems - advantage
• Experience with cross-platforms / mixed-language applications - advantage
• Experience with Deployment, including CI/CD - advantage
• Software Engineering / Computer Science Bachelor Degree - advantage
• Experience with Kiosk mode applications - advantage
• Medical / healthcare companies experience - advantage
• Knowledge of security best pacticies - advantage
  Personal
• Fire-and-Forget attitude - MUST
• Strong sense of ownership and responsibility for both production environments and company IT.
• Detail-oriented mindset with a focus on security, compliance, and reliability.
• Problem-solver able to troubleshoot across DevOps, infrastructure, and IT domains.
• Comfortable working in a startup environment: flexible, hands-on, and willing to switch contexts between R&D support and internal IT.
• Excellent collaboration and communication skills, working closely with engineers, data scientists, clinicians, and non-technical staff.
• Ability to document and enforce policies in a way that balances compliance with usability.
• Proactive learner, always looking to adopt best practices and introduce improvements in DevOps and IT
• Quick-learner, team player
   

We are looking for a Hands-on Technical Lead with strong Creatio expertise to lead the engineering of our enterprise B2B CRM platform

About us 

Kyivstar.Tech is a Ukrainian hybrid IT company and a resident of Diia.City. 

We are a subsidiary of Kyivstar, one of Ukraine’s largest telecom operators. 

Our mission is to change lives in Ukraine and around the world by creating technological solutions and products that unleash the potential of businesses and meet users’ needs. 

Over 500+ KS.Tech specialists work daily in various areas: mobile and web solutions, as well as design, development, support, and technical maintenance of high-performance systems and services. 

We believe in innovations that truly bring quality changes and constantly challenge conventional approaches and solutions. Each of us is an adherent of entrepreneurial culture, which allows us never to stop, to evolve, and to create something new. 

What you will do

• Design and own the architecture of the B2B CRM platform based on Creatio. 
• Define and implement scalable, secure, and reliable solution designs for complex enterprise use cases. 
• Work closely with Business Analysts, Product Owners, and developers to maintain developing technical solutions. 
• Develop and maintain custom Creatio packages (C#, business logic, integrations, UI). 
• Design and govern integrations between Creatio and enterprise systems. 
• Ensure data consistency, performance, fault tolerance, and security of the platform. 
• Maintain and provide technical leadership to Middle and Junior developers. 
• Create and maintain technical and architectural documentation. 
• Participate in sprint planning, technical estimations, and solution design workshops. 
• Support CI/CD pipelines and deployment processes for Creatio customizations. 
• Analyze and resolve complex incidents and performance issues. 

• Continuously improve the architecture, standards, and development practices of the CRM platform. 

   

Qualifications and experience needed

• Strong hands-on experience with Creatio (configuration, custom packages, business processes, integrations). 
• 5+ years of experience in C#/ .NET/ .NET Core development. 
• Experience with REST and SOAP APIs and system integrations. 
• Strong knowledge of MS SQL Server or PostgreSQL. 
• Good understanding  Creatio UI customization. 
• Experience designing enterprise solutions and working with complex data models. 
• Ability to work with non-technical stakeholders and explain technical solutions in a clear way. 
• Experience with CI/CD and deployment automation is a plus. 

• Optional: Experience in B2B, telecom, or large enterprise systems is a strong advantage. 

   

What we offer

• Office or remote it’s up to you. You can work from anywhere, and we will arrange your workplace. 
• Remote onboarding. 
• Performance bonuses for everyone (annual or quarterly depends on the role). 
• We train employees: the opportunity to learn through the company’s own library, internal resources and programs from partners. 
• Health and life insurance. 
• Wellbeing program and corporate psychologist. 
• Reimbursement of expenses for Kyivstar mobile communication. 

• Project Description:

  You'll be working within UBS Investment Banking team in Poland - Krakow / Wroclaw. The team is specialized on Microsoft technologies (.Net), fast time to market, agile methodology and always with a client centric delivery approach. We are looking for a software developer to help design and build a cutting-edge application for investors to create, manage, and share client portfolios, along with executing trades. This role involves working on high-performance, scalable systems that support real-time investment decision-making. You will be responsible for architecting, developing, and optimizing core backend functionalities while collaborating with global teams to deliver a seamless investor experience. It's a demanding, fast paced and exciting environment

• Responsibilities:

  • translate business requirements (functional and non-functional) into designs and code
  • work with stakeholders drawn from IT and the Business, subject matter experts, vendor teams, enterprise architects and business analysts to develop your code related to our solutions
  • drive excellence in: software analysis, design & coding, development methodologies, oral/written communication skills, technology planning, application rationalization analysis
  • challenge the status quo and come up with new ideas and solutions

• Mandatory Skills Description:

  • comprehensive knowledge in Software Engineering with .NET, JavaScript (TypeScript), React.js with Redux, Immutable.js, HTML, CSS, SASS, ASP.NET Core, SQL and TSQL
  • Azure Cloud Native development
  • good understanding of software development tools (e.g. GIT, Teamcity)
  • a verbal communicator, comfortable interacting with colleagues in English

• Nice-to-Have Skills Description:

  • a strong understanding of the software development lifecycle and Agile methodologies
  • experience in a global environment
  • a strong problem solver and a good team player
  • analytical skilled person who manages to cope with complex challenges in software engineering

We are looking for a talented Middle .NET Developer who will play a crucial role in developing and supporting a workflow engine for an existing process automation platform. 

 Responsibilities: 

• Design, support and develop high-quality software applications based on requirements specifications 
• Enhance existing software to support continuous improvement 
• Ensure proper testing and stable, consistent releases 
• Participate in code reviews and assist team members with complex tasks 
• Ensure timely delivery of solutions according to provided specifications and designs 
• Provide estimates for new tasks and projects 

• Communicate and collaborate with the client when required 

   

Requirements: 

• 2.5+ years of commercial experience in a relevant role 
• Strong knowledge of C# and the .NET platform 
• Solid experience with ASP.NET Core and Entity Framework Core (EF Core) 
• Good understanding of OOP and object-oriented design principles 
• Experience working with PostgreSQL and MongoDB 
• Proficiency in Git and Gitflow-based workflows 
• Familiarity with Redis for caching 
• Experience with messaging systems such as RabbitMQ, Azure Service Bus, or MassTransit 
• Experience with CI/CD pipelines using Azure DevOps 
• Basic understanding of microservices architecture 
• Upper-Intermediate or higher level of written and spoken English 
• Strong analytical, organizational, and time-management skills 

• Self-motivated team player with a sense of responsibility 

   

Would be a Plus: 

• Experience with multitenancy solutions 
• Experience writing unit tests and testable code 
• Understanding of workflow engines and state machine concepts 

  
We Offer:  
 

• Collaborative Environment: Join a team that values collaboration, creativity, and mutual respect  
• Career Growth: Performance reviews and constructive feedback  
• Generous Time Off: 20 paid vacation days and 15 sick leave days annually, ensuring you have the time to recharge  
• Professional Development: We support your growth by compensating for courses, certifications, and other educational opportunities  
• Flexible Work Options: Work remotely from the comfort of your home or join us in our modern Kyiv office 

Recruitment Process:   
1. HR Interview  
2. Tech&Final Interview 

3. Meeting with client 
4. Job Offer   

If you have any questions or need clarifications, feel free to reach out to our Talent Hunter Team by email. 

GR8 Tech is a leading B2B provider of iGaming solutions that empowers operators to grow, lead, and win.

We deliver high-impact, full-cycle tech solutions designed to scale. From seamless integration and expert consulting to long-term operational support, our platform powers millions of active players and drives real business growth. It’s more than just a product — it’s the iGaming Platform for Champions, built for those who play to lead.

We know the game and how to take it to the next level. With 1000+ talented professionals on board, we don't just build tech — we build success stories for iGaming operators all over the world. 

Our ambition drives us, our people make it real. Join us and be part of building champion-level success!

What You’ll Be Driving:

• Developing and implementing new features based on project requirements and specifications;
• Writing, testing, and debugging code for software applications, ensuring functionality and efficiency;
• Participating in code reviews, providing constructive feedback to ensure code quality and adherence to best practices;
• Working collaboratively with a cross-functional team;

• Troubleshooting and resolving software issues and bugs in a timely manner.

   

What Makes You a GR8 Fit:

• Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent experience);
• Proven experience as a .NET Core developer 5+ years, with a strong understanding of C#;
• Unit/Integration tests experience;
• Solid understanding of web application development, including RESTful APIs and HTTP principles;
• PostgreSQL;
• Kafka;
• Expertise in software design principles: OOP, SOLID, Patterns, DDD;
• Git;

• Intermediate+ English level.

   

Why You’ll Love Working Here:

Benefits Cafeteria

An annual fixed budget that you can use based on your needs and lifestyle. You decide how to allocate it:

• Sports – gym, yoga, or any activity to keep you active;
• Medical – insurance and wellness services;
• Mental health– therapy or coaching support;
• Home office – ergonomic furniture, gadgets, and tools;
• Languages – courses to improve or learn new skills.
   

Work-life 

• Parental support with paid maternity/paternity leave and monthly childcare allowance;
• 20+ vacation days, unlimited sick leave, and emergency time off;
• Remote-first setup with full tech support and coworking compensation;
• Regular team events – online, offline, and offsite;
• Learning culture with internal courses, career development programs, and real growth opportunities.
   

Our Culture & Core Values

GR8 Tech culture is how we win. Behind every bold idea and breakthrough is a foundation of trust, ownership, and a growth mindset. We move fast, stay curious, and always keep it real, with open feedback, room to experiment, and a team that’s got your back.

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

• BULLETPROOF: we’re resilient, ready, and always have a plan.

   

To keep things efficient, please apply only for roles that closely match your experience.

We’re looking for a .NET Developer to implement a licensing system and customer portal for existing Autodesk Revit plugins.

Responsibilities

• Build a licensing flow: account → purchase → activation directly inside the plugin
• Implement enterprise offline licensing (offline license key generation)
• Develop a customer portal to manage licenses and view usage
• Integrate the solution with 3 existing Revit plugins
• Ensure consistent UI/UX across plugins, improve code quality where needed
• Provide estimates and timelines (target release: end of February)

• Support ongoing maintenance and plugin updates

   

Requirements

• Strong experience with C# / .NET
• Experience with REST APIs, authentication, JSON

• Good engineering practices: clean code, debugging, Git

   

Nice to Have

• Revit API / BIM experience
• WPF / WinForms
• Experience with licensing/subscription systems and customer portals
•  

What We Offer

• Long-term project with transparent processes and stable growth
• Opportunity to influence technical decisions
• Flexible schedule, remote, or office in Lviv
• Transparent compensation + full accounting support
• Paid vacation and sick leave
• Internal trainings and certification support
• High-quality work equipment