Senior Backend .Net Developer Jobs

New

Senior .NET MAUI Mobile Developer

We are looking for a Senior .NET MAUI Developer to join a project in the health,...

Location

Ukraine

Salary:

Not provided

Honeycomb Software

Expiration Date

Until further notice

Requirements

5+ years in mobile development, including delivery of production mobile apps from scratch
Strong experience with .NET, C#, and .NET MAUI (or Xamarin + migration experience)
Hands-on experience building hybrid apps with clean architecture patterns (MVVM, DI, clean architecture)
Solid knowledge of automated mobile testing frameworks
Experience publishing apps to both App Store and Google Play
Comfortable working in a cross-functional environment
Understanding of mobile CI/CD tooling and processes
Ability to work with APIs, interpret specs, and propose improvements
English: upper-intermediate or higher

Job Responsibility

Lead the end-to-end development of a new .NET MAUI mobile application for iOS and Android
Migrate functionality from an existing native Swift-based iOS app (4 years old, small codebase, no documentation/tests) into a clean hybrid architecture
Deliver full feature parity with the current version and implement selected improvements
Architect a scalable, maintainable mobile codebase following best practices
Implement data visualization and basic IoT device control features using an existing backend API
Build a comprehensive automated test suite (unit, integration, UI tests)
Prepare high-quality technical documentation
Collaborate closely with UI/UX designers, data engineers, backend developers, and architects
Participate in the creation of a mobile CI/CD pipeline supporting near zero-touch deployments
Recommend and integrate mobile analytics tools if needed

What we offer

Lead the full rebuild of a real, production mobile product
Direct impact on architecture, code quality, and long-term technical direction
Collaboration with a strong, experienced internal team
Clear roadmap with future feature expansion (media capture, enhanced analytics, additional user flows)
Strong focus on engineering culture: maintainability, testing, automation, clean code
A role with high ownership and the space to make meaningful technical decisions

Fulltime

New

Senior .NET Developer

P3 Technology is looking to hire a Senior .NET Developer to help build, enhance,...

Location

United States

Salary:

Not provided

Slingshot

Expiration Date

Until further notice

Requirements

5+ years of experience in .NET Core, C#, web APIs, and relational databases
Experience architecting cloud-first solutions, preferably in AWS
Comfortable working across the stack, from backend logic to front-end integration (experience with Angular or Vue.js a plus)
Confident presenting and collaborating with customers and translating business needs into clear, executable development tasks
Excellent verbal and written communication skills
Curious, autonomous, and comfortable owning solutions end-to-end

Job Responsibility

Design, build, and maintain scalable cloud-native applications using .NET Core, C#, PostgreSQL, and AWS
Architect modular, extensible solutions to complex feature requests
Lead and participate in code reviews, ensuring code quality and consistent standards across the team
Translate business requirements into technical specifications and working software
Actively participate in client/customer meetings, including with customer tech teams, to understand use cases and provide technical guidance
Collaborate with other developers, business analysts, and stakeholders on planning and delivery
Continuously improve development processes and AWS infrastructure with a “DevOps” mindset, including working with Terraform, Github actions, and Containerization
Maintain and improve security and SOC 2/HIPAA compliance of the P3 Platform, including installation of security patches and updating vulnerable packages, etc

What we offer

Generous paid time off and holidays
Quarterly bonuses
SIMPLE IRA retirement plan with company match
Entirely remote-first work environment
Flexible hours and strong work-life balance
Opportunities to grow with a lean, agile, and ambitious team

Senior .NET Developer

We are seeking a Senior-level .NET Engineer with an understanding of architectur...

Location

Salary:

Not provided

Edvantis

Expiration Date

Until further notice

Requirements

5+ years of commercial experience with .NET
Strong experience with .NET (C#) and microservices architecture
Strong experience with ASP.NET Core Web API
In-depth knowledge of RESTful APIs and distributed systems
Experience with Azure Cloud Platforms – must have
Experience with Azure Functions – must have
Experience with Azure Service Bus – must have
Experience with Azure SQL Database
Proficiency in Entity Framework for database management
Strong problem-solving and troubleshooting skills

Job Responsibility

Work closely with architects to implement service decomposition strategies
Refactor and enhance existing service code for performance, maintainability, and scalability
Contribute to improving the structure and reliability of the backend service layer
Assist in the rewriting and modernization of legacy backend services into a microservices architecture
Support and guide team members through mentorship and collaboration
Contribute actively to backlog refinement to help the team identify optimal technical solutions
Deliver development tasks on schedule, ensuring high standards of quality, performance, and adherence to coding best practices
Maintain clear and thorough documentation of progress, decisions, and scope adjustments in Jira
Oversee and coordinate software deployment processes
Take ownership of complex development challenges and document implemented solutions

What we offer

Remote-first work model with flexible working hours (we provide all equipment)
Comfortable and fully equipped offices in Lviv and Rzeszów
Competitive compensation with regular performance reviews
18 paid vacation days per year + all state holidays
12 days of paid sick leave per year without a medical certificate + extra paid leave for blood donation
Medical insurance with an affordable family coverage option
Mental health program which includes free and confidential consultations with a psychologist
English, German, and Polish language courses
Corporate subscription to learning platforms, regular meetups and webinars
Friendly team that values accountability, innovation, teamwork, and customer satisfaction

Fulltime

Senior Web Developer

We are offering an exciting opportunity for a Senior Web Developer to join our t...

Location

United States , St. Paul

Salary:

Not provided

Robert Half

Expiration Date

Until further notice

Requirements

5+ years of .Net Development experience
Experience using MVC, .NET Core
Experience with front-end frameworks - Angular, React, or Vue.js
Experience with Azure DevOps

Job Responsibility

Use software engineering tools and best practices to solve business problems
Design and implement web-based and backend applications
Mentor staff to achieve high quality software through continuous improvement
Drive the design of software solutions using architectural and design best practices and principles
Provide guidance and introduce software engineering best practices to the team
Evaluate and prototype software solutions to meet evolving business needs
Engage in continuous improvement of software delivery processes, concepts, and practices
Collaborate on cross-functional Agile Scrum teams to drive solution completion
Provide or assist with technical support as needed
Work as a collaborative project team member, serving as a developer and technical advisor

What we offer

medical
vision
dental
life and disability insurance
401(k) plan

Fulltime

Senior Backend Engineer - Tech Lead

We're looking for an experienced and motivated Senior Backend Engineer - Tech Le...

Location

Israel , Herzliya

Salary:

Not provided

Hewlett Packard Enterprise

Expiration Date

Until further notice

Requirements

7+ years of experience in backend software development
Strong background in SaaS architecture and cloud-native technologies
Proficiency in programming languages: Go, .NET, TypeScript and Node.js
Experience with CI/CD pipelines, microservices, and containerization (Docker, Kubernetes)
Ability to take ownership of features from design through implementation and delivery
Excellent communication skills and the ability to work collaboratively across functions
Experience with monitoring, observability, and operational excellence in production environments
Experience mentoring others will be considered an advantage

Job Responsibility

Drive the design, development, and delivery of scalable SaaS solutions with high availability and performance
Develop and maintain backend services, fostering a culture of ownership, collaboration, and continuous improvement
Ensure adherence to software development best practices, including code reviews, testing, documentation and knowledge sharing
Contribute to architectural decisions and long-term technical vision
Execute technical tasks for key initiatives, ensuring alignment with product goals
Collaborate with POs, DevOps, QA, Security and other cross-functional teams to deliver features on time and with high quality
Mentor junior developers by guiding their technical growth, CRs and supporting them in conducting research and implementing high-quality solutions
Analyze and troubleshoot customer escalations, identify root causes, and drive timely, effective solutions to ensure product reliability and customer satisfaction

What we offer

Health & Wellbeing
Personal & Professional Development
Unconditional Inclusion

Fulltime

Senior Backend Engineer

We're a team of passionate engineers responsible for the infrastructure that pow...

Location

Israel , Herzliya

Salary:

Not provided

Hewlett Packard Enterprise

Expiration Date

Until further notice

Requirements

7+ years of hands-on experience in backend software development
Solid understanding of backend architecture and scalable service design
Proficiency in at least one of the following languages: Go, .NET (C#), or Python
Experience designing and building cloud-native applications
Familiarity with containerized environments (Docker, Kubernetes) and CI/CD pipelines
Strong sense of ownership – ability to lead features end-to-end, from design to delivery
Excellent communication and collaboration skills, especially in cross-functional environments
Experience mentoring or supporting other developers is a plus
Comfortable working in Linux-based environments

Job Responsibility

Lead the design and development of scalable, high-performance backend systems that are critical to the core product
Take full ownership of complex infrastructure components, from concept to production, ensuring reliability, observability, and maintainability
Deep dive into new technologies and system areas, evaluating and integrating them as needed to solve infrastructure and product challenges
Drive engineering excellence by setting high standards for code quality, testing, documentation, and design reviews
Act as a senior developer within the team: mentoring others, contributing to architectural discussions, and supporting the team’s technical growth
Collaborate cross-functionally with Product, DevOps, Security, and QA to align infrastructure and backend work with business needs
Investigate and resolve production issues, customer escalations, and performance bottlenecks with a proactive, root-cause-oriented approach
Help shape the team’s technical roadmap and long-term direction through strategic input and hands-on contribution

What we offer

Health & Wellbeing
Personal & Professional Development
Unconditional Inclusion

Fulltime

New

Senior Software Developer

Location

Canada , Mississauga

Salary:

Not provided

Advanced Technology Search Group

Expiration Date

Until further notice

Requirements

Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field
7+ years of experience as a Full Stack Developer or Software Architect, with a proven ability to design and implement complex systems
Expertise in core programming languages and frameworks, including C#, TypeScript, .NET, and Angular
Solid understanding of software design patterns, algorithms, data structures, and architectural principles
Hands-on experience in coaching and mentoring software developers
Strong knowledge of product architecture and lifecycle management
Demonstrated leadership abilities, including people management, influence, and excellent communication skills

Job Responsibility

Collaborate with internal and external stakeholders to gather and translate architecture and system requirements into actionable development plans
Drive the architectural design of our full-stack applications, focusing on core areas such as user interfaces, middleware, backend systems, and integrations with data analytics and business intelligence platforms
Develop, enhance, and maintain scalable, secure, and high-performance applications using C#, TypeScript, .NET, and Angular
Address customer needs by analyzing challenges and recommending strategic solutions aligned with business goals
Evaluate the implications of architectural changes, proactively suggesting enhancements to improve scalability, maintainability, and performance
Provide mentorship and technical guidance to a team of developers, ensuring the delivery of robust and well-architected solutions
Act as a Subject Matter Expert for one or more key system components, ensuring high-quality design and implementation
Stay updated on emerging technologies and industry trends, ensuring best practices are implemented in development processes
Troubleshoot and resolve complex technical issues efficiently to minimize disruption and ensure a productive development environment
Research and uphold code quality standards, ensuring the highest levels of maintainability, performance, and security

Fulltime

New

Integration Developer

Integration Developer - Hybrid, PA. Hybrid: Remote and on location work as neede...

Location

United States , Philadelphia

Salary:

Not provided

Ocean Blue Solutions

Expiration Date

Until further notice

Requirements

8+ years proven experience as a Senior developer or similar role with expert knowledge in integrating SAP, Microsoft Dynamics, Azure cloud solutions, and IVR systems and integrations with external systems, specifically in high volume contact center modernization projects
5+ years of hands on expertise in Payment Processing Applications development and maintenance, including newer digital payment methods on projects of various sizes and subject matters is required, but 8+ years’ of experience is preferred
3+ years of experience in backend development using GoLang
3+ years of experience in backend development using .Net
Strong understanding of RESTful API design and decentralized microservices architecture
Experience with containerization tools (Docker, Kubernetes)
Familiarity with cloud platforms (AWS, GCP, or Azure)
Proficiency with ADO, Git and version control workflows
Solid understanding of concurrency, memory management, and performance optimization in Go and .Net
Proficient in the Microsoft Office 365 suite of business software including Teams, Word, Excel, and PowerPoint, plus proficient in Microsoft ADO Testing Module

Job Responsibility

Responsible for connecting the different systems, applications, and technologies, including SAP S/4HANA, BRIM, Microsoft Dynamics 365, cloud telephony and IVR, web portals, mobile apps, middleware systems, document storage and retrieval solutions, cloud hosting, and more, to ensure they technically work seamlessly together for best in class performance
Design, develop, and maintain backend services using tools such as .Net, and Go (Golang)
Build and optimize APIs, microservices, and cloud native distributed systems
Collaborate with cross-functional teams to ensure seamless CI/CD pipelines and containerized deployments (Docker, Kubernetes) to deliver high-quality solutions on schedule and within budget
Write clean, maintainable, and well-tested code
Participate in code reviews and contribute to team knowledge sharing
Stay current with .Net, and GoLang best practices and emerging technologies, applying best practices towards leveraging on-demand open APIs
Design and develop scalable and resilient technical architectures to integrate SAP, Microsoft Dynamics, Azure cloud services, IVR systems, and external systems for tolling projects (e.g., payment gateways, backend databases, traffic management systems)
Provide hands-on technical leadership and mentorship to development teams, ensuring adherence to architectural principles, best practices, and industry standards
Utilize deep knowledge of Microsoft government and commercial cloud platforms (Azure) and SAP BRIM to architect solutions that comply with tolling industry regulations and operational requirements

Senior Backend .Net Developer

Miniclip

Location:
Netherlands, Zoetermeer

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Requirements:

Nice to have:

Additional Information:

Job Posted:
December 10, 2025

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Senior Backend .Net Developer

Miniclip

Location:Netherlands, Zoetermeer

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Requirements:

Nice to have:

Additional Information:

Job Posted:December 10, 2025

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Location:
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Job Posted:
December 10, 2025