Jobs C# / .NET

About Us

We are a US-founded early stage start-up with an R&D team located in Europe. Our mission is to make learning accessible, relevant, and individualized to keep up with the changing world. We are developing a personalized virtual trainer experience, integrating generative AI and learning engineering to build a VR simulator for immersive hands-on skills training. Our learning engineering approach customizes content and feedback in real-time, directly improving learning outcomes.

We're looking for a Senior Unity engineer to help build the client-side infrastructure of our training platform. This is not just one-off application work. You will build the client foundation that powers VR training simulations today, and additional client targets over time, connecting it to our server according to a defined client-server architecture. The role demands strong application architecture, on-device services, and performance optimization skills.

The Role

This is a hands-on individual contributor role focused on building and evolving key components of our platform's client-side architecture. You will build client infrastructure against a defined server-client architecture in which the server owns authoritative simulation state and logic, connecting the client to the server per spec and reflecting server-owned behavior faithfully on the device.

Key Responsibilities

• Own and drive key components of the Unity VR client architecture so they generalize across training simulations and, over time, additional client targets, rather than serving a single application.
• Build client-side infrastructure that connects to the server according to defined contracts and reflects server-owned state and behavior on the device.
• Co-design the client-server API with the backend, defining the data contracts.
• Develop tooling that supports content creators and other developers working on the platform.
• Use AI coding assistants as part of day-to-day development, and build and maintain the pipelines and validation that make their output reliable.
• Make pragmatic architectural decisions and manage technical priorities effectively in a fast-paced, ambiguous startup environment.

Requirements

• Demonstrated professional Unity and C# experience, ideally 5+ years, with a track record of shipping complex applications or products.
• A portfolio demonstrating experience architecting and refactoring large-scale Unity projects.
• Direct experience building for VR, in particular Meta Quest.
• A track record of building generic, reusable infrastructure and frameworks, not just one-off features.
• Comfort working within a defined client-server architecture and with established API contracts.
• A proactive and adaptable mindset suited for the dynamic and evolving environment of an early-stage startup.
• Excellent communication and collaboration skills in English, with experience working effectively in a remote, culturally diverse team.
• A genuine interest in using technology to enhance learning and education.

Nice To Have

• Experience targeting additional client platforms such as WebGL.
• Experience with data-driven or reactive component systems.

What We Offer

• A high-ownership role with direct influence on product direction, architecture, and user experience, and on company culture.
• A senior opportunity to build a platform from the ground up and contribute to its growth and commercialization.
• The flexibility of a fully remote position, with working hours flexible across European time zones rather than tied to US hours.

Infozahyst is a Ukrainian scientific and production center that has been developing software and hardware solutions for Ukraine’s security and defense forces for over 20 years.
We are engineers, analysts, and researchers united by a common goal: to create technologies that ensure Ukraine’s security.

Requirements: 
• DSP fundamentals: FFT, windowing, FIR / IIR filtering, spectral analysis, I/Q data.
• Radio engineering and SDR: modulation types, channel and noise models, baseband vs passband,
link-budget analysis, SDR architecture and sample-streaming interfaces.
• 8+ years of professional C# / .NET, 4+ years in a Senior, Tech Lead or Architect role with cross-team
scope.
• Deep knowledge of the CLR (memory model, GC, JIT, allocation patterns, finalization) and core C#
(generics, LINQ, expression trees, async/await internals, synchronization contexts, etc).
• Working knowledge of modern C# (8+): pattern matching, nullable reference types, records,
switch expressions, etc.
• Practical experience with .NET Framework → modern .NET migrations.
• Strong expertise in WPF (MVVM) and data-intensive desktop applications: virtualization, binding
cost, Freezable, Dispatcher patterns, custom controls and ControlTemplate, high-DPI and screen
scaling, UI Automation.
• Solid experience with multithreading: TPL, TPL Dataflow, synchronization primitives, lock-free
patterns, ThreadPool tuning.
• Experience building applications that process real-time streaming data from devices, sensors, or
network endpoints.
• Solid understanding of network programming: TCP/UDP, binary protocols, framing, backpressure,
reconnect logic.
• Hands-on experience with low-allocation patterns and SIMD in .NET: Span<T>, Memory<T>,
ArrayPool<T>, System.Numerics.Vector<T>, hardware intrinsics.
• Strong database skills: MS SQL Server, T-SQL, execution-plan analysis, EF Core, Dapper.
• Strong grasp of software design and architectural review: SOLID, GRASP, DDD, separation of
concerns, clean architecture, design patterns, focus on maintainability, testability, performance.
• Solid foundation in algorithms and data structures: big-O notation, collections trade-offs, graph
and dynamic-programming techniques where applicable to signal-processing tasks.
• Experience with profiling and diagnostics: dotTrace, dotMemory, Visual Studio Profiler, ETW /
PerfView, BenchmarkDotNet.
• Hands-on experience with unit / integration testing (including TestContainers), CI/CD pipelines,
quality gates.
• Proficient with Git and modern branching / code-review practices.
• Track record of horizontal expert work: setting standards, cross-team reviews, mentorship,
ownership of domain artifacts (competency matrix, tech radar, coding standards, lessons learned,
etc).
• Experience as an independent technical evaluator in hiring and Performance Review.
• Excellent communication and mentoring, able to defend technical positions in writing and in
discussion.
• English: B2 or higher.

Preferred Skills:

• GPGPU (CUDA, OpenCL, ILGPU) for signal-processing workloads.
• Native interop in .NET: P/Invoke and C++/CLI for performance-critical code and hardware
integration.
• Public technical activity: articles, conference talks, open-source contributions, etc.
• Agile (Scrum / Kanban) with release-based planning.

Key Responsibilities:

• Co-own the .NET competency matrix and domain tech radar with the Head of Engineering
Excellence Center.
• Author coding standards, review templates, checklists and reference solutions contributing deep
cross-domain expertise.
• Build and run internal enablement: lectures, workshops, mentorship.
• Provide expert consultation and architectural review across projects.
• Drive root-cause analysis of complex defects across .NET projects.
• Define release-readiness criteria within the domain.
• Design and run technical interviews, calibrate ratings across interviewers.
• Act as independent technical evaluator in Performance Review, support IDP design.
• Support pre-sale (assumptions, risks, recommendations), contribute to Project Brief and Project
Cost without owning delivery.
• Surface project problems suitable for a research track and hand them to the Head of Research
Programs.
• Represent the domain externally (articles, talks, meetups, recruiting brand, etc).

Benefits:

• Employment in a stable and reliable company;
• Working remotely, but available to visit office in Kyiv once a month;
• Competitive salary;
• A 5-day work week with an 8-hour workday within the 9:00–20:00 time window;
• Support for personal and professional growth, including opportunities for training and reimbursement of its cost;
• Care for employee health through medical insurance, 18 working days of paid vacation, and sick leave coverage;
• Openness to new ideas and approaches, with healthy communication within the team;
• Unique and exciting projects;
• Involvement in a mission that brings us closer to victory!

Dear candidates, we will review your resume within 10 business days, and if the decision is positive, we will definitely contact you. If you do not receive feedback from us, it means that we are not ready to offer you this position at the moment.

Get to know us

Ideals is a global B2B SaaS product company recognized as the most highly rated and customer-centric brand in the secure business collaboration market. Trusted by over 2,000,000 users from 300,000 companies globally, we help people run high-stakes processes and make important decisions with less stress, higher quality, and shorter hours.

Ideals Virtual Data Room (VDR): Secure document sharing and collaboration for due diligence, fundraising, corporate reporting, licensing, clinical trials, and other complex transactions.

Ideals Board: Board and leadership collaboration platform for faster, safer, and more compliant decision-making.

The role

Ideals is an international B2B SaaS company building a leading Virtual Data Room (VDR) platform used globally for highly sensitive data exchange. Our Engineering organization consists of ~100 professionals across 9 cross-functional teams, each owning critical product areas.

We are looking for a Senior Backend Engineer (.NET) to join our Team for the Ideals Virtual Data Room platform.

Tech stack: .NET Framework 4.7, .NET 8, ASP.NET Core, Entity Framework, Web API, PostgreSQL, AWS, Docker/Kubernetes, ArgoCD, Git.

What you will do

• Participate in all phases of the SDLC as part of a cross-functional product team. This includes, but is not limited to, requirements analysis, design, implementation, testing (unit, integration, and service tests), building, deployment, and operation of new product increments, handling change requests, defect resolution, spikes, and proof-of-concepts
• Ensure high-quality solutions by maintaining acceptable test coverage aligned with the Definition of Done criteria
• Be a proactive team player, contributing actively to the group’s efforts to complete tasks and achieve goals
• Adhere to and drive modern software engineering practices through design reviews
• Engage in mentorship and knowledge sharing within the team and the Engineering organization

What you bring

• Over 5 years of commercial experience in backend development using .NET Framework and .NET 6+
• B2 level proficiency in English, both spoken and written
• Solid understanding of the SDLC, along with software design and architecture principles
• Expertise in writing both unit and integration tests while ensuring that best practices for testing are integrated into every phase of development
• Expertise in API design principles, with a solid understanding of REST, RPC, including security considerations
• Experience with relational databases (preferably MS SQL Server / PostgreSQL)
• Familiarity with cloud platforms (AWS is preferred)
• Product-focused approach, consistently striving to create value for users
• Strong sense of ownership, taking full responsibility for end-to-end development from design through to production support
• Proactive attitude and a growth mindset, with a strong orientation towards self-development and continuous learning
• Interest in AI-driven solutions, with openness to developing expertise in this area

Nice to have

• Experience in product or SaaS businesses
• Experience with .NET 8
• Experience with AWS (SNS, SQS, S3,EC2,OpenSearch) and Docker/Kubernetes
• Knowledge of security best practices in backend development

Our assessment process

• Screening call with the Talent Acquisition Specialist (45 mins)
• Technical interview and Live coding (2 hours)
• Engineering Competency-based interview with our Engineering Manager (2 hours)
• Interview with the Hiring Manager (60 mins)

What we offer

We highly value our people, so we will empower you with all the resources and support to help you reach your full potential.

For your best work

• Remote-first flexibility to shape your ideal workday
• Home workplace budget
• Resilient home budget for Ukraine-based teammates
• Resilient office in Kyiv & co-working expense coverage
• Individual IT budget for extra equipment
• Top-tier tech and AI-powered tools

For your growth

• Access to Ideals Academy with numerous courses
• Investment in external learning and development activities
• Guidance in Personal Development Plan creation
• Professional literature and subscriptions coverage
• Support of your passion as a speaker or writer
• Internal talent mobility opportunities

For your well-being

• Medical insurance and Wellness Package for sports activities
• Full coverage of mental health sessions for Ukrainian teammates
• Funding for sports competitions
• 20 business days of paid time off per year
• Unlimited health-related time-off

Extra perks

• Budget for meetups with your local team
• Generous internal referral program

Our culture

Commitment, Excellence, Collaboration, Trust and Care are core values to the Ideals team. For us, these are the principles that every Idealer lives and breathes. We are on the lookout for like-minded individuals who share our values. By doing so, we create a team where talents feel at ease and work to the best of their abilities.

Discover more.

Ideals is an equal opportunity employer

Ideals is made up of people from a wide variety of backgrounds and lifestyles. We embrace diversity and invite applications from people from all walks of life. We don’t discriminate against employees or applicants based on gender identity or expression, sexual orientation, race, religion, age, national origin, or citizenship.

Who we are  

We are a Ukrainian multiproduct company that creates database development and management tools, connectivity solutions, productivity tools, and data services for more than 500.000 clients from 120 countries. Since 1997, we have been streamlining data workflows for professionals and teams with our intuitive and efficient software products. We're committed to enhancing the experience of our customers across the globe by minimizing data-related tasks and enabling them to focus on more inspiring goals.  

Among our clients, you can find such legends as Microsoft Corporation, Oracle America, IBM, Intel, and many more companies that deserve their place in the Fortune 100 and Fortune 500. Whether it's global companies or individuals, we provide a customer-centric approach, delivering high-quality solutions and exceptional support.  

Driven by passion, we play a substantial role in shaping the future of data management. 

Product that needs your engagement  

Connectivity — An enterprise B2B product at the intersection of AI and corporate data infrastructure. It enables organizations to securely connect modern AI agents and LLM-based assistants to their internal data sources — relational databases, data warehouses, and SaaS systems — while maintaining strict governance, access control, and auditability. The product is deployed on-premise within the customer’s infrastructure, which makes security, compliance, and admin experience first-class concerns alongside end-user value.

Your future team of professionals 

You will be part of the Connectivity team and work with highly motivated professionals who are passionate about the project. You will collaborate with other .NET developers,  Product Owner, QA, and Support team. 

Impact you will make 

Product Management  

• Work closely with stakeholders to document business requirements, define user stories, and contribute to planning and execution  
• Collaborate with team members to ensure seamless implementation of UI/UX functionality, aligning with product vision and user needs  
• Verify requirements provided by a product management team and/or other stakeholders  
• Take part in preparing and prioritization of refactoring plans  
• Provide L3 support for clients (if applicable) 

Project Management  

• Decompose complex tasks into achievable work items  
• Interact with other teams involved in product development to optimize processes  
• Keep sprint workloads in an actual state 

People Management  

• Conduct coaching and mentoring activities to fulfill technical leadership for team members  
• Take part in technical interviews 

Software Development  

• Implement features of any level of complexity  
• Design tests (unit, integration, etc.)  
• Foster high quality standards for software development among team members by applying best practices  
• Conduct research while accepting features for implementation, decompose features into subtasks, providing accurate estimates  
• In collaboration with Head of Engineering and Solution Architect, design and implement architectural solutions within a project  
• Deliver features for testing and provide consultations to QA team during feature verification  
• Conduct code reviews 

Skills we are looking for 

• Deep knowledge and understanding of .NET Framework/.NET Core/.NET and C# 
• Deep knowledge and understanding of OOP and OOD (including SOLID and GoF design patterns)  
• Deep knowledge and understanding of data structures  
• Good algorithmic basis  
• Experience with relational databases and SQL  
• Experience with VCS (Git preferred)  
• Knowledge and understanding of issues lifecycle  
• Knowledge of approaches and methods of task estimation and decomposition  
• Experience with ALM systems (Jira preferred)  
• Experience with knowledge bases (Confluence preferred)  
• Understanding of basic CI/CD principles, experience with CI systems (Jenkins preferred)  
• Understanding of SCRUM principles and values  
• Experience with Entity Framework 
• Experience with ADO.NET  
• Essential experience with WinForms, preferred expirience with DevExpress WinForms components 
• Preferred expirience with SSIS, COM interop, unmanaged code interop 

Benefits you get 

Maintain your work-life balance 

• Take control of your workday with our flexible schedule. 
• 19 days of annual vacation granted on a pro-rata basis. 
• No overtime required. 

Hybrid/remote type of cooperation

Whether you prefer to work remotely in the comfort of your home office or from one of our 4 offices, you can help promote the global visibility of exceptional Ukrainian products from anywhere in the world. 

Stay healthy 

• Comprehensive medical insurance from a leading Ukrainian provider, including a wide range of services and special programs for relatives, and special options for those who live abroad. 
• 15 working days of sick leave per year – because your health is our priority. 

Grow with us 

• In-house English courses to increase your proficiency through our online courses and speaking clubs with a native speaker. 
• Online learning activities, including workshops, lectures, and webinars to enhance your leadership, management, and self-awareness skills. 
• Experience exchange with our team of professionals who eagerly share their deep expertise across various fields. 
• Opportunities for promotions, rotations, and transitions when you believe your skills could benefit a different role or team. 

Stand with Ukraine! 

We have an active pro-Ukrainian position! This means that we help our army, our servicemen, and their families not only through constant donations and volunteering but also through our military leave policy, special health insurance options, and financial assistance. 

We are a perfect match if you share our values 

We are professionals in our field. We know how to turn up our professionalism to the maximum because we are experts who enjoy solving complex tasks. We know how to focus on the product, think big, and, at the same time, delve deep into the details. 

We create a calm and friendly atmosphere within the company. We value the freedom of open and transparent communications. Radical honesty is embedded in the foundation of our culture. 

We are open to new things, constantly evolve, and practice regular knowledge sharing. Most importantly, the company creates an environment where we can fulfill our potential upon a solid foundation. 

Our Hiring process 

• Recruitment interview 
• Technical Interview 
• Offer Call 

Senior Mobile Developer Lead (Warsaw)

• Full-time in-house role in Warsaw
• Salary up to $7,000/month
• Relocation / Visa Assistance (If need)

A leading logistics and storage company is seeking a Senior Mobile Developer with basic understanding of .Net to own and deliver a major mobile-first technology platform.

This hands-on leadership role will drive the development of a secure customer mobile app integrated with operational systems, access control, payments, reporting, and a .NET-based backend platform.

Key Responsibilities

• Lead the design and delivery of the mobile application
• Build secure features including authentication, biometrics, permissions, push notifications, and Bluetooth Low Energy (BLE)
• Integrate mobile, web, CRM/CMS, payment, reporting, and operational systems
• Design APIs and help shape .NET/C# backend architecture
• Define technical standards, documentation, and delivery processes
• Work directly with the CEO and leadership team

• Help build and lead the engineering team as the platform grows

   

Requirements:

• Strong commercial experience developing and shipping mobile applications
• Experience with mobile security, biometrics, push notifications, BLE, and API-driven architectures
• Solid understanding of .NET/C# backend.
• Experience integrating third-party systems and operational platforms
• Knowledge of CRM, CMS, ERP, payments, reporting, and cloud infrastructure
• Strong ownership, documentation, and security mindset
• English OR Polish Language Spoken.

Nice to Have:

• Umbraco or similar CRM/CMS platforms
• Access control or hardware integrations
• Logistics, storage, facilities, or operational technology experience

• Previous technical leadership or architecture ownership

   

What We Offer:

• Full-time in-house role in Warsaw
• Salary up to $7,000/month
• Relocation Assistant
• Modern office environment
• Direct access to senior leadership
• Long-term strategic technology project
• Real ownership of product and platform direction
• Opportunity to build and lead a team
• Salary up to $7,000/month
• Performance-based bonuses
• Possible visa/work permit sponsorship for Ukrainian or toher EU candidates

Role Summary

You will lead the development of the company's core mobile platform, integrating customer-facing applications with backend systems, access control, and operational infrastructure while helping shape the future technology strategy of a growing logistics business.

We are looking for a Senior Software Engineer – Platform Modernization to lead development efforts focused on improving system scalability, modernizing backend services, and enhancing infrastructure and data systems within a high-scale, event-driven architecture.

The platform is built on a robust event-driven design and already supports scalable real-time processing and analytics. The goal of this role is to further expand its capabilities to meet growing technical and business demands.

As a senior member of the engineering team, you will play a key role in shaping the future of the platform by driving architectural improvements, increasing system reliability, and optimizing performance across core services. Your work will have a direct impact on the scalability, stability, and efficiency of mission-critical systems.

Responsibilities

• Develop and maintain modular, containerized microservices using .NET Core within a distributed architecture.
• Implement event-driven communication and streaming data flows using Kafka, RabbitMQ, and MassTransit.
• Collaborate with product leads and engineering leadership to translate business requirements into scalable technical solutions.
• Lead migration efforts from legacy components built on technologies such as .NET Framework and MSMQ into modern, cloud-ready services.
• Participate in design reviews, promote clean code practices, and apply Domain-Driven Design principles.
   

Requirements

• Minimum 4 years of experience in backend development.
• Proven expertise in big data and messaging systems — Kafka and RabbitMQ are mandatory.
• Experience with relational and NoSQL databases, including MSSQL, PostgreSQL, MongoDB, Redis
• Familiarity with MSMQ for legacy system understanding and migration - advantage
• Strong proficiency in .NET Core, .NET Framework, and C#.
• Experience in infrastructure development, including cloud-native and general-purpose systems - advantage
• Experience with AWS services (e.g., ECS/EKS, Lambda, RDS, S3, CloudWatch) - advantage
• Hands-on experience with MassTransit or other orchestration libraries - advantage
• Solid understanding of distributed systems, microservices, and event-driven architectures.
• Experience with API design, documentation, and governance.
• Knowledge of security best practices, including OAuth2, JWT, and secrets management.
• Strong debugging, profiling, and performance optimization skills.
• Passion for clean code, testing, and continuous improvement.
• Strong communication skills and a proactive approach to problem-solving.

Ability to mentor junior developers and contribute to team growth.

Bonus Skills

• Exposure to JavaScript/React for cross-layer collaboration.
• Familiarity with CI/CD pipelines, containerization, and infrastructure as code.

Are you passionate about technology and eager to kickstart your career in software development? Join our dynamic team at DICEUS as an intern .NET Developer and gain hands-on experience in a professional tech environment.

You’ll be contributing to the development of a modern solution tailored for the insurance industry — designed to optimize operations and enhance customer engagement through advanced technologies like cloud computing and AI.
 

What You’ll Be Doing:

• Assisting in the development of scalable web applications under the guidance of
• experienced mentors.
• Learning to work with back-end technologies such as .NET
• Exploring Azure Cloud and understanding how modern apps are deployed and
• maintained.
• Supporting the implementation of API integrations and other software
• components.
• Engaging in internal team discussions and learning sessions to broaden your
• knowledge base.

What We Expect From You:

• Basic understanding of programming concepts in .NET (C#)
• Curiosity about cloud services, web technologies, and how real-world systems
• work.
• Willingness to learn, grow, and take feedback constructively.
• Good communication and team collaboration skills.
• Currently studying or recently graduated in Computer Science or a related field.

What We Offer:

• Hands-on experience with cutting-edge technologies in a professional
• environment.
• Mentorship and guidance from experienced developers.
• Exposure to real-world development processes in the insurance tech space.
• A collaborative and innovative work culture that encourages learning and
• growth.The opportunity to become a Junior Developer after successfully completing
• the internship period.

Sounds like your kind of challenge? Apply now and let’s start your tech journey

together

Are you a Senior Full-Stack Developer looking to work on impactful projects in the automotive industry? Join Sigma Software and contribute to cutting-edge solutions that help prevent production faults before they happen.

This is a Senior role with a Remote work format, offering full-time engagement and direct collaboration with Customer teams. At Sigma Software, we value innovation, ownership, and engineering excellence — and we’ve been delivering high-quality solutions for over 20 years.

Why join us? You’ll work with a modern tech stack, cloud-native environments, and AI-assisted development tools, all while contributing to solutions that make a real difference in production quality.
 

CUSTOMER
Our Customer is a well-known German automotive manufacturer with a global presence and a strong reputation for innovation, quality, and engineering excellence. Sigma Software has been collaborating with this Customer for over five years, delivering high-impact software solutions that support their production processes and operational efficiency.
 

PROJECT
The engagement involves three interconnected web-based solutions. The primary system aggregates data from multiple Customer systems, processes it, and transforms it into actionable insights. This data — covering organizational, technical, and operational aspects — is used preventively to detect and address potential faults in automotive production lines. In case of a fault, the system provides detailed information to facilitate root cause analysis.

Responsibilities 

• Work directly with Customer engineering and product teams to understand business needs, clarify requirements, and propose effective technical solutions
• Take ownership of end-to-end feature delivery from technical analysis and design to implementation, testing, and production support
• Design, develop, and maintain high-quality full-stack solutions using .NET, React.js, and cloud technologies
• Participate in architecture discussions, technical decision-making, and delivery planning
• Identify and recommend technical improvements, risk mitigation strategies, and optimization opportunities
• Develop scalable, reliable, and maintainable applications following engineering best practices
• Work with containerized environments and Kubernetes-based deployments
• Apply AI-assisted development approaches to improve productivity and code quality
• Collaborate closely with distributed teams (developers, QA, product owners, architects)
• Contribute to code reviews, technical documentation, and knowledge sharing
• Maintain transparent communication and strong alignment with Customer expectations

Requirements

• At least 5 years of professional software development experience
• Strong hands-on expertise with .NET / C# and modern web technologies
• Proven background in complex business domains and large-scale enterprise applications
• Solid experience with ASP.NET Core / Web API, Entity Framework Core, database design, and optimization
• Strong front-end skills with React.js, Redux, Material UI, TypeScript, and modern JavaScript practices
• Practical experience with cloud platforms (AWS, Azure, GCP)
• Knowledge of CI/CD processes, automated delivery pipelines, and code quality practices
• Experience working with containerized environments and Kubernetes
• Familiarity with AI-assisted development tools and practices
• Good understanding of software architecture principles, design patterns, and clean code
• Experience working in Agile teams

• Upper-Intermediate English level or higher

   

Personal profile

• Proactive, ownership-driven, and capable of working independently
• Strong analytical and problem-solving skills
• Comfortable collaborating with distributed, cross-functional teams
• Adaptable to changing requirements and priorities

Position overview
As a Senior .NET Engineer on the Fintech Core project, you will drive the development of key product modules within a modular white-label fintech platform designed for rapid deployment of digital banking and payment solutions. You will take ownership of technical implementation, architectural decisions, integration approaches, and engineering quality within one of the platform’s major client deployments.
 

The role requires deep expertise in backend engineering, distributed systems, and fintech integrations, with strong focus on scalability, reliability, security, and maintainability. You will work closely with Architects, Product Owners, DevOps Engineers, and cross-functional development teams to design and implement high-performance microservice-based solutions that support complex financial operations.
 

This position is ideal for a proactive and technically strong engineer with hands-on experience in fintech or banking systems, who is capable of leading module-level development initiatives, mentoring engineers, and driving engineering excellence across the project.

Your Background

-5+ years of experience with .NET backend development
-Experience with fintech, banking, or payment systems
-Strong understanding of microservices architecture
-Experience with ASP.NET Core, REST APIs, and gRPC
-Hands-on experience with Docker and Kubernetes
-Experience with PostgreSQL, Redis, MongoDB, RabbitMQ, Kafka
-Strong knowledge of software architecture and clean coding principles
-Experience with AWS is a plus
-English level (Upper-Intermediate.)

Responsibilities

-Develop and maintain scalable backend services using .NET and ASP.NET Core
-Design and support microservice-based solutions
-Develop REST APIs and gRPC integrations
-Collaborate with DevOps and cross-functional teams
-Ensure system reliability, scalability, and code quality
-Participate in architecture and technical decision-making

Technologies

.NET 10, ASP.NET Core, gRPC, Entity Framework Core, PostgreSQL, RabbitMQ, Docker, Kubernetes, OpenTelemetry, Prometheus, Serilog, AWS, GitHub Actions

WE OFFER 
-20 billable days off in the first year of cooperation, all next years — 25 billable days off 
-Fair and competitive compensation 
-Friendly team and enjoyable working environment 
-Clearly described business processes in the company that really work -Regular updates on company news and Q&A sessions with top management 
-Flexible work schedule 
-Remote work mode 
-Ability to transfer unused vacation days to the next year

Experienced Microsoft.NET developer in building backend systems in Microsoft Azure. You will design and build services in a service oriented architecture.

Requirements:
 

• At least 3 years of experience designing and building APIs in ASP.NET (version 8.0 or higher)
• At least 3 years with Entity Framework Core (version 8.0 or higher)
• At least 3 years with Microsoft Azure
• At least 4 years with C#
• At least 4 years building unit and integration tests
• Knowledge of service oriented architecture principles
• Knowledge of integration patterns and principles
• Knowledge of OAuth / OpenID Connect security protocols
• Works according to SOLID principles
• At least 3 years with Azure DevOps and Git
• Understanding of UML activity diagrams and sequence diagrams

Nice to have:

• Azure Platform Services (App Service, Service Bus, Key Vault, Storage, SQL Database, AI Search)
• Azure DevOps YAML pipelines with PowerShell and Azure deployment services
• T-SQL (SQL Server)
• The IDesign Method

What We Offer:

• Transparent bonus payment system
• Competitive salary with regular compensation reviews
• Opportunity to bring your ideas to life and lead the entire process
• 40-hour workweek with flexible scheduling
• Paid vacation and sick leave benefits

Experienced Microsoft.NET developer in building backend systems in Microsoft Azure. You will design and build services in a service oriented architecture.

What We Seek:

• Proven experience in designing and building APIs in ASP.NET (version 8.0 or higher)
• Proven experience with Entity Framework Core (version 8.0 or higher)
• Proven experience with Microsoft Azure
• At least 8 years of professional experience with C#
• At least 8 years of experience in building unit and integration tests
• Knowledge of service-oriented architecture (SOA) principles
• Knowledge of integration patterns and principles
• Knowledge of OAuth and OpenID Connect security protocols
• Adheres to SOLID principles
• At least 7 years of experience with Azure DevOps and Git

• Understanding of UML activity diagrams and sequence diagram.

   

A plus when has:

• Proven knowledge of the following Azure Platform Services; App Service, Service Bus, Key Vault, Storage (blob- and table storage), SQL Database, AI Search
• Proven knowledge of Azure DevOps yaml pipelines in combination with powershell and Azure deployment services
• Proven knowledge of T-SQL (SQL Server)
• Proven knowledge of the IDesign Method

What We Offer:

• Transparent bonus payment system
• Competitive salary with regular compensation reviews
• Opportunity to bring your ideas to life and lead the entire process
• 40-hour workweek with flexible scheduling

• Paid vacation and sick leave benefits

   

We are looking for a Middle/Senior  .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. 

TemaBit Fozzy Group is an IT company that develops unique solutions for more than 40 businesses of Fozzy Group. We specialize in web and mobile development, as well as software for managing business processes and infrastructure projects.

In addition, we experiment and care about the team and the Guest, we value cooperation, we preach honesty and openness.

As a Junior .NET Developer, you will contribute to building and maintaining high-quality backend systems and applications. Under the guidance of senior team members, you will enhance your technical skills in .NET development and gain experience in backend architectures and cloud-based systems. You will also start learning how to effectively use AI-assisted development tools to improve your coding, problem-solving, and learning process.

This role is an excellent opportunity to grow as a professional in a supportive and collaborative environment.

Key Responsibilities:

• Develop backend systems using .NET, ensuring basic code quality and maintainability
• Collaborate with the engineering team to implement web applications and backend solutions
• Learn and follow engineering best practices
• Participate in the software development lifecycle under the guidance of senior developers
• Contribute to the implementation of scalable and efficient solutions
• Use AI-powered tools (e.g., GitHub Copilot, Amazon Q, ChatGPT) to assist with coding, learning new concepts, and generating documentation
• Follow senior developers' guidance on responsible and secure usage of AI tools in daily work

Requirements:

• 1+ year of experience in .NET development
• Good knowledge of .NET 8+
• Openness to adopting AI-assisted tools to speed up learning and improve productivity
• Familiarity with relational databases (e.g., SQL Server, PostgreSQL)
• Understanding of ORMs like Entity Framework or Dapper
• Understanding of object-oriented programming (OOP) principles
• Familiarity with version control systems like Git
• Familiarity with Agile/Scrum methodologies and eagerness to work in an Agile environment
• Willingness to learn and grow under supervision in areas like microservices architecture, scalable software design, etc.

Nice-to-have Skills & Experience:

• Curiosity about AI technologies and their application in software development
• Familiarity with cloud platforms (e.g., AWS, Azure, or GCP)
• Basic understanding of containerization tools like Docker
• Exposure to testing frameworks (e.g., xUnit, NUnit)

We propose:

• The ability to generate and influence decision-making
• Competitive salary discussed based on the results of the interview with the successful candidate
• Medical insurance
• Discounts for network employees
• Remote work mode, and if you want to work in the office — there is a cozy co-working space in the Silver Breeze business center (Kyiv)

The company operates within the healthcare technology sector, specializing in solutions that enhance patient safety and data integrity. It develops advanced platforms that leverage biometric identification to accurately link individuals with their medical records. These innovations are crucial for preventing medical errors, reducing administrative redundancies, and safeguarding sensitive patient information against fraud. The organization’s offerings support healthcare providers in addressing critical compliance and security challenges while simultaneously improving operational productivity. Its strategic focus includes building scalable, cloud-native SaaS products designed to revolutionize patient access and care delivery.

As part of the GlobalLogic team, you will grow, be challenged, and expand your skill set working alongside highly experienced and talented people.

If this sounds like an exciting opportunity for you, send over your CV!

This role requires a full-time commitment to working on-site at our Lviv location, fostering direct collaboration and team engagement within the office environment.

Requirements

• Demonstrated advanced expertise in Artificial Intelligence (AI) concepts and their practical application in enterprise software solutions. Agentic AI, Codex/GitHub Copilot/Claude Code
• Possess advanced proficiency and hands-on experience with the .NET framework, including C# for developing robust and scalable applications.
• Proven ability to design and implement full-stack enterprise applications, demonstrating comprehensive understanding of software architecture.
• Strong proficiency in modern frontend development frameworks such as Angular or React, enabling the creation of intuitive user interfaces.
• Extensive experience working with leading cloud platforms, specifically AWS or Azure, for deploying and managing scalable applications.
• Mandatory experience with containerization and orchestration technologies, including Docker, Kubernetes, and Helm, for efficient application deployment.
• Solid understanding and practical application of DevOps practices and tools to ensure continuous integration and streamlined deployment pipelines.
• Expertise in designing, querying, and optimizing relational databases such as MS SQL Server or Postgres for high-performance data management.

Job responsibilities

• Develop and maintain Windows desktop applications (WPF) in collaboration with cross-functional teams
• Work closely with architects and senior engineers to ensure alignment with system architecture
• Participate in refactoring and modernization efforts (including migration to .NET 8)
• Write unit and integration tests to ensure code quality
• Follow secure development practices, especially for handling healthcare data
• Contribute to Agile development processes and deliver features on time
• Participate in cross-functional discussions with product management, QA, and UX teams to translate requirements into technical specifications.
• Ensure comprehensive documentation of designs, implementations, and operational procedures.

About the client:

Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers.

About the role:

We’re looking for a Senior Software Engineer who takes end-to-end ownership, thrives in ambiguity, and wants to build systems that matter. This role is central to rethinking and rebuilding our clients’ auto repossession and remarketing platform, a system that directly influences how vehicles are recovered, processed, and remarketed across the big automotive ecosystem. This is an AI-first engineering role—not in name, but in practice. You’ll continuously evaluate where AI (including LLMs and agentic tools) can meaningfully improve engineering velocity, system quality, and operational efficiency, while applying strong judgment about where it should not be used.

You’ll help shape architecture, influence technical direction, and own what you build—from design to production. 

What You’ll Do:

Build & Evolve Critical Systems

Rethink and reshape core workflows based on a deep understanding of auto repossession and remarketing processes.

Design and implement scalable, resilient systems using modern architectural principles: clear service boundaries, modularity, and observability.

Incorporate LLMs and AI-driven components to improve data validation, document processing, and operational decision-making.

• Use AI-assisted and agentic coding tools to accelerate development—while maintaining high standards for correctness, security, and maintainability.

Own Architecture & Technical Decisions

Drive architectural discussions and decisions, balancing pragmatism with technical excellence.

• Set and enforce high-quality bars for new services and modules, with a focus on testability, performance, and reliability.
• Identify and reduce technical debt in ways that measurably improve developer velocity and system robustness.

Build With an Ownership Mindset

Work across the full software lifecycle: design, build, deploy, operate, and iterate.

• Embrace a “you build it, you own it” DevOps mindset alongside your team.
• Make thoughtful trade-offs between effort, quality, and user value—always with accountability for outcomes.

Collaborate & Lead

• Work closely with product managers, designers, and other engineers in an agile, cross-functional team.
• Contribute ideas, challenge assumptions, and continuously improve how we build software.
• Mentor and support other engineers through code reviews, design discussions, and technical leadership.

What We’re Looking For:

• Canadian timezone work hours
• A Lead (7+ years of experience) engineer who owns results, not just implementations.
• Someone who enjoys complex problem-solving and isn’t afraid of legacy systems—or changing them.
• Strong engineering fundamentals: clean code, testing discipline, system design, and performance awareness.
• Strong experience with TypeScript and modern React / Next.js
• Strong experience building production systems with .NET (Core / modern .NET preferred).
• Strong experience building production systems with C#
• Comfort operating in production environments and learning from real-world feedback.
• A builder’s mindset: If you can think it, you can build it. If you build it, you own it.
• Experience leveraging AI, Generative AI (GenAI) to enhance engineering productivity, automate repetitive tasks, and optimize workflows. You should demonstrate the ability to integrate AI-driven solutions into your daily work — such as code generation, debugging, reviews, documentation, and decision support—to improve efficiency for yourself and your teams. A proactive approach to exploring and implementing AI tools that drive innovation and streamline development processes is highly valued. (Strong must)