ASP.NET Jobs in Paris.
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Fullstack Developer (Développeur / Ingénieur Logiciel Confirmé)
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Shift delivers AI agents that transform insurers' most critical work. By combining deep industry expertise and unmatched data resources, Shift provides proven results that have earned the trust of hundreds of the world's leading insurers. Our insurance-grade AI is accurate, explainable, and secure—empowering human experts to move with unmatched speed, total confidence, and a renewed focus on the people they serve.
Our culture is built on innovation, trust, and a drive to transform the insurance industry through our SaaS platform. We come from more than 50 different countries and cultures and together we are creating the future of insurance.
Learn more at www.shift-technology.com
As a Fullstack Engineer, you will join our core Engineering team to build complete designs for applications and features that deliver direct value to our customers. You will solve complex technical challenges by working within your squad and collaborating across the organization with Data Scientists, QA, and Product Managers. Your focus will be on delivering high-performance, scalable, and quality solutions that modernize our platform. This role is essential for driving the technical migrations and architectural improvements that power Shift’s mission.
What Your Impact Looks Like
At Shift, we value ownership from day one. In this role, you will:
- Jump In & Own It:
- Take full ownership of technical tasks and resolve delivery blockers promptly without waiting for direction.
- Design and implement intuitive user interfaces to collect and review information.
- Build and maintain robust APIs that automate decision-making processes.
- Simplify the Complex: Design, write and test (from unit to end-to-end) clear, clean, well-structured C# and React code that is easy for others to maintain.
- Test, Learn, Scale:
- Contribute to technical migrations, modernization efforts, and architectural improvements as our platforms evolve.
- Experiment with new frameworks and use retrospectives to identify opportunities to improve delivery speed and quality.
- Communicate with Impact: Share progress and technical trade-offs clearly during stand-ups, adapting the detail for both peers and stakeholders.
- Solve Without Drama: Address production incidents and bugs calmly and methodically, focusing on root causes and long-term solutions.
- Finish what you start: Demonstrate reliability by validating that all code meets user needs and is fully documented before moving to new work.
We work with modern technologies and always encourage our team to explore what’s new in the market. Our main tools are:
- Frontend: React/Redux/TS/Vanilla Extract/LESS/Dev Container with Vite
- Backend: ASP.NET, C#, MSSQL, Elasticsearch
- IDE: your choice - Rider, VS Code, or Visual Studio + Resharper
- Cloud: Microsoft Azure
- Foundational toolchain: GitHub Enterprise, GHAS, GH Copilot + coding agent
- CI/CD: GitHub Actions / TeamCity, Cypress, GH Packages (npm, NuGet), Octopus
- Collaboration: Slack, Jira, Confluence
What You'll Need to Succeed
We are looking for a Shifter who is:
- C# Expert: You have 2 to 6 years of experience in software development with a deep, production-level mastery of C# and .NET.
- Fullstack-Capable: You are comfortable across the stack and have hands-on experience with React or modern JavaScript frameworks.
- Architecturally Minded: You don’t just write code; you design scalable, maintainable systems and write clean, testable logic.
- Growth-Oriented: You have a test-and-learn mindset, actively exploring new tools and frameworks to improve performance and quality.
- Impact-Driven: You focus on outcomes over output, taking full ownership of your tasks from initial design to production monitoring.
- Collaborative & Clear: You are a fluent English speaker who can explain technical trade-offs simply and partner effectively with cross-functional squads.
- 30-minute video interview with our Talent Acquisition Specialist
- 2x 1-hour technical interviews, one with a Backend dev and one with a Frontend dev
- 1-hour final interview with the Hiring Manager
#LI-RH1 #LI-HYBRID
To support our permanent, full time employees at every stage of their careers and lives, we provide a competitive total rewards and benefits package. Here are the global benefits we’d like to highlight:
- Flexible remote and hybrid working options
- Competitive Salary and a variable component tied to personal and company performance
- Multiple Learning and Development opportunities, including Focus Fridays, a half-day each month to focus on learning and personal growth
- Generous PTO and paid holidays
- Mental health benefits
- 2 MAD Days per year (Make A Difference Days for paid volunteering)
Additional benefits may be offered by country, based on your eligibility - ask your recruiter for more information. Intern and Apprentice positions may receive some of these benefits - ask your recruiter for more details.
At Shift we strive to be a diverse and inclusive workforce. We welcome applications from and hire people who will contribute to the diversity of our company, without regard to race, color, religion, marital status, age, national or ethnic origin, physical or mental disability, medical condition, pregnancy, genetic information, gender identity or expression, sexual orientation, or other non-merit criteria.
Shift Technology is committed to providing reasonable accommodations for qualified individuals with disabilities in our application and employment process. Should you require accommodation, please email accommodation@shift-technology.com and we will work with you to meet your accessibility needs.
Please be aware of scammers and only trust correspondence that comes from emails ending in "shift-technology.com". We will never do initial outreach to you via Whatsapp/Text/SMS, never ask for banking information or personal identification numbers (ex. Social Security Number) as part of our recruitment process.
Shift Technology does not accept unsolicited CVs from recruiters or employment agencies in response to the Shift Technology Careers page or a Shift Technology social media post. Any unsolicited CVs, including those submitted directly to hiring managers, are deemed to be the property of Shift Technology.
Ready to apply?
Apply to Shift Technology
Fullstack Developer with solid C# and Javascript skills
Share this job
Shift delivers AI agents that transform insurers' most critical work. By combining deep industry expertise and unmatched data resources, Shift provides proven results that have earned the trust of hundreds of the world's leading insurers. Our insurance-grade AI is accurate, explainable, and secure—empowering human experts to move with unmatched speed, total confidence, and a renewed focus on the people they serve.
Our culture is built on innovation, trust, and a drive to transform the insurance industry through our SaaS platform. We come from more than 50 different countries and cultures and together we are creating the future of insurance.
Learn more at www.shift-technology.com
Our super-duper Engineering Team lies at the core of the value we offer to our customers. We solve complex problems by working not only within our squads, but also by working collaboratively with other teams across the organization. If you are excited by solving complex technical challenges, this is the right place for you!
Your responsibilities include:
- Designing and implementing intuitive user interfaces to collect and review information.
- Building and maintaining robust APIs that automate decision-making processes.
- Writing, testing (from unit to end-to-end), and delivering clean, maintainable code.
- Actively participating in releases, deployments, and monitoring of solutions in production.
- Contributing to technical migrations, modernization efforts, and architectural improvements as our platforms evolve.
- Frontend: React/Redux/TS/Vanilla Extract/LESS/Dev Container with Vite
- Backend: ASP.NET, C#, MSSQL, Elasticsearch
- IDE: your choice - Rider, VS Code, or Visual Studio + Resharper
- Cloud: Microsoft Azure
- Foundational toolchain: GitHub Enterprise, GHAS, GH Copilot + coding agent
- CI/CD: GitHub Actions / TeamCity, Cypress, GH Packages (npm, NuGet), Octopus
- Collaboration: Slack, Jira, Confluence
- Between 2 and 5 years of experience in software development
- Backend wise, you have solid C# skills - it's a MUST!
- You have some Frontend experience as well - any JS framework works; we work with ReactJS!
- You are a true Fullstack: Frontend is part of your job, as much as Backend!
- Your projects are beautifully designed and cleanly written
- You are dynamic, curious and eager to learn, always looking to expand your fields of expertise
- You are proactive and take ownership of your work
- You want your work to have an impact: rather than a cog, you see yourself as the engine
- Fluency in English
- 30-minute video interview with our Talent Acquisition Specialist
- 2x 1-hour technical interviews, one with a Backend dev and one with a Frontend dev
- 1-hour final interview with the Hiring Manager
#LI-RH1 #LI-HYBRID
To support our permanent, full time employees at every stage of their careers and lives, we provide a competitive total rewards and benefits package. Here are the global benefits we’d like to highlight:
- Flexible remote and hybrid working options
- Competitive Salary and a variable component tied to personal and company performance
- Multiple Learning and Development opportunities, including Focus Fridays, a half-day each month to focus on learning and personal growth
- Generous PTO and paid holidays
- Mental health benefits
- 2 MAD Days per year (Make A Difference Days for paid volunteering)
Additional benefits may be offered by country, based on your eligibility - ask your recruiter for more information. Intern and Apprentice positions may receive some of these benefits - ask your recruiter for more details.
At Shift we strive to be a diverse and inclusive workforce. We welcome applications from and hire people who will contribute to the diversity of our company, without regard to race, color, religion, marital status, age, national or ethnic origin, physical or mental disability, medical condition, pregnancy, genetic information, gender identity or expression, sexual orientation, or other non-merit criteria.
Shift Technology is committed to providing reasonable accommodations for qualified individuals with disabilities in our application and employment process. Should you require accommodation, please email accommodation@shift-technology.com and we will work with you to meet your accessibility needs.
Please be aware of scammers and only trust correspondence that comes from emails ending in "shift-technology.com". We will never do initial outreach to you via Whatsapp/Text/SMS, never ask for banking information or personal identification numbers (ex. Social Security Number) as part of our recruitment process.
Shift Technology does not accept unsolicited CVs from recruiters or employment agencies in response to the Shift Technology Careers page or a Shift Technology social media post. Any unsolicited CVs, including those submitted directly to hiring managers, are deemed to be the property of Shift Technology.
Ready to apply?
Apply to Shift Technology