OverviewExperience Services builds and maintains the cart, checkout, order, billing, and authentication systems that power every customer transaction across Managed Hosting and Managed Applications.
You will own quality end to end: from specification and test strategy through automation, verification, and production behavior.
The pull request is the visible part. The job is the machine behind it: turning a loosely worded need into something precise enough to build against, naming what can break before it does, proving the change is correct rather than asserting it, and staying with it once it is live.
How we work
Business alignment and focus come first. Engineering here exists to move the business, not to be busy. You will know which few things matter most this month and why, say so when the work in front of you is not one of them, and land what you committed to on dates the business can plan around, at a quality that does not come back as an incident or a customer escalation. Predictable, reliable delivery of quality software is the output of this job, and everything below is in service of it.
This job gets more hands-on every quarter, not less. The volume of code goes up while the time you spend typing it goes down, so the value moves to the two ends of it: what you specify, and what you verify. You will stay close to production, run the AI harness daily, read code you did not write, and keep your technical judgment current rather than remembered.
Whoever ships it owns it, regardless of what wrote it. Most code is AI-generated now, so the judgment moved to either side of it: specifying exactly what to build, and verifying that what came back is correct, secure and operable. An agent wrote it is not a defense. Your name is on the merge.
You do not need to own the roadmap to know why the work matters. You will not be the Product counterpart at this level and you are not expected to be. You are expected to understand what the customer gets and what the business gains from the thing you are building, and to ask before you build the wrong thing correctly. The engineers who move fastest here are the ones who ask that question early rather than at the review.
You go on call for what you build, and you take your turn on the rotation. Engineering declares risk and timelines in writing for the business to accept, and that includes yours: when a date is at risk you say so early, with evidence, rather than quietly.
Key Performance Indicators- Speed: DORA High, with Elite as the target. Your changes are part of that number: small, reviewed quickly, deployed often, and recovered fast when one of them fails. You get there through engineering excellence and a performance-driven culture, not through pressure.
- The quality of what you ship. Tests with every change, coverage gating on changed code, evidence on the pull request rather than an assurance that it works. Defects reaching customers, and changes that come back a second time.
- AI adoption and its impact. Measured by what you deliver with the harness, not by tools licensed or seats counted.
- The size of problem you can be handed. Over a year here, the scope you can take without it being broken down for you should grow, and so should the number of people who ask for your review.
Responsibilities
- Own quality end to end within the Experience Services domain. Take responsibility for how changes across cart, checkout, order, billing, and authentication systems are validated from specification through development, deployment, and production.
- Build and maintain automated testing frameworks and test coverage. Develop reliable automated tests for customer transaction flows, integrations, regression scenarios, and critical business processes.
- Define testing strategy early in the development process. Identify risks, dependencies, edge cases, and failure scenarios before implementation is complete.
- Translate requirements into clear and testable acceptance criteria. Work with engineers and stakeholders to remove ambiguity and ensure expected behavior can be verified objectively.
- Validate end-to-end customer journeys. Test complex flows across cart, checkout, ordering, billing, invoicing, authentication, and related integrations.
- Verify changes and provide evidence. Ensure pull requests include meaningful test results, coverage, and validation of both expected behavior and failure scenarios.
- Use AI-assisted engineering tools as part of your daily workflow. Apply agentic tooling to testing, automation, and review while critically validating generated output and remaining accountable for the final result.
- Review code and test changes from other engineers. Identify quality, reliability, integration, and design risks early and provide clear, actionable feedback.
- Improve testing efficiency and reduce manual effort. Identify repetitive validation work and replace it with reliable automation wherever practical.
- Support production quality. Participate in incident analysis, identify gaps in test coverage, and ensure production issues result in improvements to automated testing and engineering practices.
- Work across existing and unfamiliar systems. Understand complex or legacy applications and integrations and develop effective test coverage without requiring unnecessary rewrites.
- Mentor other engineers in quality practices. Share testing approaches, automation techniques, and quality standards across the team.
- Coordinate quality dependencies across teams. Identify integration risks early and work directly with relevant engineers to ensure cross-team changes are tested appropriately.
QualificationsRequired
- 5+ years of experience with automated testing frameworks and software quality engineering.
- Strong experience designing, building, and maintaining automated test suites for production applications.
- Experience testing complex end-to-end workflows across multiple systems and integrations.
- Strong understanding of software testing principles, including functional, integration, regression, and failure-path testing.
- Experience defining test strategies and translating requirements into clear, testable acceptance criteria.
- Experience working closely with software engineers throughout the development lifecycle rather than testing only after development is complete.
- Ability to read and understand application code well enough to identify risks, test gaps, and potential defects.
- Experience with production systems and incident analysis, including using production issues to improve test coverage.
- Hands-on experience with AI-assisted engineering or testing tools as part of day-to-day technical work.
- Strong written communication skills and the ability to work effectively in a remote, distributed team across multiple time zones.
Preferred
- 5+ years of experience with billing and invoicing systems.
- 5+ years of experience with relational databases such as PostgreSQL or MariaDB.
- 5+ years of experience with Perl or PHP.
- Experience testing cart, checkout, order management, authentication, or other transaction-heavy systems.
- Experience with payment, billing, or financial integrations.
- Experience in managed hosting, cloud platforms, SaaS, or another high-availability service environment.
- Experience with CI/CD-integrated automated testing.
- Experience mentoring engineers or helping establish quality and testing standards across a team.
Employment type: Permanent, Full-time
What We Offer- work in a team of professionals at international level;
- opportunity to practice and improve your English;
- excellent pay and all necessary equipment;
- remote work with the possibility to use our co-working space in Bratislava;
- employee referral program with bonuses for successful referrals;
Disclaimer:This job description is only a summary of the typical functions of the position. It is not intended to be an exhaustive or comprehensive list of all job responsibilities, tasks, or duties. Additional duties and tasks may be assigned as part of the job function. Nexcess reserves the right to modify, interpret, or apply this job description in a way that best supports the organizational needs. The job description in no way creates or implies an employment contract. The employment contract remains “at will”.
Equal Employment Opportunity Policy: Nexcess is committed to offering equal employment opportunity without regard to age, color, disability, gender, gender identity, genetic information, marital status, military status, national origin, race, religion, sexual orientation, veteran status, or any other legally protected characteristic.