Skip to content
CV Rocket
Get started
How it worksThe enginePricingBlogContactSign in

Open nowPosted 34 hours ago

Senior .NET Developer (Desktop Applications)

Endava165 open roles

Pay
PLN 19,267 a month
Where
Warsaw, Mazovia, Poland
Work mode
Hybrid
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowSenior .NET Developer (Desktop Applications)Endava · Warsaw, Mazovia, Poland

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on Endava's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

13.9% of postings close within 7 days. Measured by our own scanner across the market. Endava postings stay open a median of 18 days.

Share of postings closed within
  1. 2.2%1 day
  2. 4.7%3 days
  3. 13.9%7 days
  4. 22.4%14 days
  5. 38.1%30 days
  6. 59.0%60 days
This job: posted 34 hours ago

Endava median: 18 days open

The posting

Company Description

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

As a Senior Engineer, you will design, develop and maintain the WTW ResQ insurance reserving product, taking ownership of complex features and technical areas. You will help the team make sound engineering decisions, improve quality and deliver changes safely across an established desktop product and its integrations.

You will work closely with engineers, the Team Lead and insurance or actuarial stakeholders to clarify requirements, assess technical options and deliver reliable outcomes. You will share knowledge and support other engineers, while contributing to the responsible use of agentic AI in software development and internal knowledge sharing.

Release and production-support activities take place during normal office hours, under the support arrangements agreed between WTW and Endava. The role does not include out-of-hours or on-call support.

Key Responsibilities

Engineering and technical design

· Design, implement and maintain ResQ features using C#, .NET 10 and .NET Framework 4.7.2, including hands-on development, refactoring and defect fixes.

· Develop and support WPF desktop applications and integrations involving COM interfaces, SQL Server, SignalR and MassTransit.

· Contribute solution recommendations and input to technical design and architecture discussions, working with the Team Lead and WTW’s ResQ engineering and architecture owners to turn product requirements into maintainable, supportable solutions. WTW retains product-wide architectural and policy authority.

Quality and engineering practices

· Review code and provide practical guidance to teammates; share knowledge of the codebase, application behaviour and engineering practices, and maintain technical documentation and runbooks for assigned components.

· Design, implement, maintain and execute unit, integration and regression tests, including Ranorex GUI automation for assigned C# components;

· Monitor and triage security scan findings for assigned components, remediate issues within the agreed backlog and WTW’s security standards, and escalate shared-component or policy issues to WTW’s security owners.

· Use approved agentic coding tools to explore code, trace workflows, draft bounded implementation changes, generate tests and support refactoring; review and verify outputs before adoption, and share practical learning to support the team’s responsible adoption of AI-enabled engineering practices.

Releases and application support

· Use Azure DevOps Pipelines and Git/GitHub in development and release activities; maintain CI/CD pipelines and build, installation and deployment tooling for assigned components, resolve related build and test failures, apply relevant patches and retire unused resources within WTW guidance and access permissions.

· Support WTW’s release and urgent-patch planning, readiness checks, demonstrations and support handover for assigned components.

· Investigate defects and production issues, identify root causes and contribute fixes and preventative improvements; participate in customer calls through WTW’s support route to provide technical assistance for assigned components during agreed working hours and within agreed support arrangements.

Delivery ownership and collaboration

· Own delivery of assigned complex changes and technical components; contribute to analysis, refinement and estimation, create and maintain stories and technical tasks for assigned work, conduct technical spikes and communicate progress, risks and dependencies early.

· Collaborate with the team to ensure sustainable run of scrum ceremonies, including when needed, planning, estimation, refinement, reviews and retrospectives; facilitate follow-up and help resolve blockers.

· Collaborate with the incumbent team, relevant insurance or actuarial stakeholders and WTW’s product, architecture, QA, DevOps, infrastructure, security and support teams to clarify needs, address cross-component dependencies and support continuous improvement.

Qualifications

• Strong professional experience developing applications with C# and .NET.

• Experience with both modern .NET and .NET Framework applications; familiarity with .NET 10 and .NET Framework 4.7.2.

• Experience working with SQL Server and application integrations; familiarity with COM interfaces, SignalR or MassTransit.

• Experience contributing to technical design, code reviews and engineering quality in a collaborative team.

• Practical understanding of testing, debugging, versioning, packaging, deployment and production support for desktop applications.

• Experience with Git-based development and familiarity with Azure DevOps Pipelines.

• Ability to assess AI-generated code and other AI outputs critically and verify changes through review and testing.

• Clear communication skills and the ability to work with engineers and business stakeholders.

• At least 5 years of practical experience in the IT industry

Desirable

· Experience with insurance, actuarial or financial products.

· Familiarity with PostgreSQL, Snowflake or Databricks, where relevant to the product roadmap.

· Experience using AI-assisted development workflows or internal knowledge tools grounded in enterprise code and documentation.

· Experience using approved AI tools to support software engineering and knowledge management.

· Experience with WPF and desktop application development

Additional Information

For this position, the gross base salary starts from PLN 19 267 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.

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against Endava's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on Endava's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    Endava's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.