Backend Engineer
Full-Stack Engineer with .NET and Angular
Warsawsenior
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Technology is our how. And people are our why. For over two decades, we have been harnessing technology to drive meaningful change.
By combining world-class engineering, industry expertise and a people-centric mindset, we consult and partner with leading brands from various industries to create dynamic platforms and intelligent digital experiences that drive innovation and transform businesses.
From prototype to real-world impact - be part of a global shift by doing work that matters.
Job Description
As part of Endava's strategic partnership with WTW, who provide data-driven, insight-led solutions in the areas of people, risk and capital, we're building dedicated software engineering teams to support WTW's Insurance Consulting and Technology Division.
WTW's Insurance Consulting and Technology business is a global leader in P&C, Life and Health insurance software and advisory services, with over 1,700 colleagues across 35 markets. More than 1,000 insurers worldwide trust our combination of advisory insight and advanced software to help them navigate complexity and drive sustainable growth.
Joining Endava, you'll work exclusively with WTW to help embed AI-enabled engineering practices, modern ways of working and deep insurance technology expertise, contributing to the next generation of products and services for insurers worldwide. Working as part of a dedicated team established through a Build-Operate-Transfer (BOT) model, you'll collaborate closely with WTW while building your career as an Endava employee, supporting the long-term success of this strategic partnership.
About the Role
In this role, you will work within a cross-functional product team responsible for modernising the user experience, backend services and cloud platform capabilities of one of WTW’s strategic cloud platforms.
You will contribute to a business-critical distributed compute platform that executes large-scale insurance modelling workloads across the organisation. The platform dynamically provisions Azure compute resources, runs computationally intensive jobs submitted by multiple business applications and provides a shared cloud foundation for analytical services.
The role combines frontend and backend development, cloud-native engineering and modern software engineering practices. You’ll help replace legacy technologies, rebuild AngularJS portals, modernise backend services, introduce Infrastructure as Code, migrate workloads to Azure Container Apps and improve deployment automation and operational resilience.
Working alongside experienced platform engineers, architects, product owners, DevOps engineers and QA specialists, you’ll help transform the current platform into a modern Azure-native platform while gaining deep knowledge of cloud platform engineering and distributed systems.
What Success Looks Like
In this role you will:
- Contribute to meaningful modernisation outcomes across the platform and related services.
- Deliver high-quality frontend and backend changes that are secure, maintainable and easy to operate.
- Improve platform reliability, scalability and performance through well-tested engineering changes.
- Apply agreed engineering standards, coding practices and review feedback consistently.
- Support faster, more predictable delivery by contributing to automation, CI/CD and DevOps improvements.
- Collaborate effectively with architects, product owners, QA, DevOps and other engineers to solve delivery challenges.
- Actively learn, share knowledge and contribute to a positive engineering culture.
Key Responsibilities
Application Development
- Develop modern Angular applications replacing legacy AngularJS user and administration portals.
- Design, develop and maintain .NET backend services supporting distributed compute workloads.
- Build and enhance REST APIs consumed by multiple business applications.
- Modernise legacy platform functionality while preserving business continuity.
- Implement scalable, maintainable and secure software following modern engineering practices.
Platform Modernization
- Participate in migration towards Azure Container Apps and containerised workloads.
- Support Infrastructure as Code implementation using OpenTofu/Terraform.
- Contribute to cloud-native platform modernization initiatives.
- Participate in modernisation of deployment pipelines and release automation.
- Help improve platform scalability, maintainability and operational resilience.
Engineering Excellence
- Write unit, integration and automated tests ensuring software quality and reliability.
- Participate in code reviews and technical discussions.
- Apply Clean Code principles, modern software design patterns and engineering best practices.
- Support continuous integration and continuous delivery initiatives.
- Contribute to zero-downtime deployment improvements.
Operations & Collaboration
- Collaborate closely with Product Owners, Architects, QA Engineers, DevOps Engineers and fellow Software Engineers.
- Participate in production support and on-call rotation as part of the engineering team.
- Contribute to troubleshooting, root cause analysis and continuous platform improvements.
- Share knowledge and actively participate in building the engineering capability.
Qualifications
Software Engineering
- 4–6 years of commercial software development experience.
- Strong experience with C#, modern .NET and ASP.NET.
- Strong experience with Angular and TypeScript.
- Experience designing and developing RESTful APIs.
- Good understanding of object-oriented programming and modern software engineering principles.
Cloud & Platform Engineering
- Experience developing applications on Microsoft Azure.
- Experience with Azure DevOps, Git and CI/CD pipelines.
- Experience working with Docker and containerised applications.
- Understanding of Infrastructure as Code principles, with the ability and willingness to work with tools such as OpenTofu or Terraform.
- Understanding of cloud-native application development principles.
Engineering Practices
- Experience writing unit and integration tests.
- Understanding of Clean Code principles and software design patterns.
- Experience working in Agile Scrum teams.
- Ability to work within a collaborative cross-functional engineering team.
Soft Skills
- Strong communication and collaboration skills.
- Proactive approach to problem solving.
- Willingness to learn modern cloud platform technologies.
- Passion for continuous improvement and engineering excellence.
Preferred Skills and Experience
- Azure Container Apps
- Azure Batch
- OpenTofu or Terraform
- Playwright
- SQL Server
- Redis
- SignalR
- Experience working on cloud-native platforms
- Experience modernising legacy enterprise applications
Additional Information
“For this position, the gross base salary
starts from PLN 15 267 PLN Gross per month
(full-time employment contract), determined using objective and gender-neutral criteria including skillset, experience and role responsibilities.
Our benefits offering typically include private medical insurance, dental plan, and glasses reimbursement. The figure represents the initial remuneration we expect to offer for this role and does not limit the right to equal pay for women and men performing the same work or work of equal value. All remuneration and benefits decisions are based on non-discriminatory, gender-neutral criteria, and in accordance with the Polish Labour Code amendments implementing Directive on pay transparency, we do not request or consider candidates’ current or past remuneration during the recruitment process.”
At Endava, we’re committed to creating an open, inclusive, and respectful environment where everyone feels safe, valued, and empowered to be their best. We welcome applications from people of all backgrounds, experiences, and perspectives—because we know that inclusive teams help us deliver smarter, more innovative solutions for our customers. Hiring decisions are based on merit, skills, qualifications, and potential. If you need adjustments or support during the recruitment process, please let us know.
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