At Personio we are on an amazing hypergrowth journey towards becoming the leading HR Platform in Europe! We’re looking for experienced Software Engineers to join our Product & Technology department, who will play an active role in shaping our engineering culture and the future of thousands of HR teams and organizations across Europe.

We have a hybrid architecture with a PHP (Laravel) monolith at the heart of it. You will join the team that is responsible for ensuring the scalability, performance and stability of that critical service which is at the core of 80% of the business logic of the Personio HR application. You will proactively investigate current and future problems which threaten the continued business operations. From time to time you will deal with operational issues which need immediate mitigation or resolution. You will also design long term changes to code patterns, data access patterns, data models and other architectural and design changes to ensure that the monolith can scale to serve 10x our current amount of customers.

• Together with a team of very experienced engineers, you will maintain a large PHP monolith (running Laravel framework) and be responsible for keeping the core components and dependencies up-to-date. 

• You will identify performance bottlenecks and stability issues, dive deep into the code and find the underlying root cause, and implement the appropriate refactoring or software redesign to ensure continued scalability of the system. When appropriate, you will also work closely with product teams to help them improve their areas in the monolith.

• You will work on improving code quality and test coverage, and help improve the PHP engineering culture across Personio, defining best practices on how we manage a large PHP codebase, technical debt, refactoring, design patterns and coding principles.

• You will use your existing experience to help improve the monolith with new ideas and strategies that help maintain the quality, reliability, security, performance and cost effectiveness of the product and platform.

• You will partner with your engineering manager, keeping them up to date and informed with technical details across multiple projects. Helping to ensure the team is delivering results in an iterative fashion that is driven by impact and promotes a culture of experimentation and shipping to learn.

• Over 6 years of software engineering experience building and designing performant and large-scale PHP applications. You understand performance and stability aspects of distributed systems, you can reason on the big picture, and you can design scalable systems.

• You have a strong expertise with working with PHP codebases (ideally Laravel). In particular you’re comfortable with the intricacies of their build ecosystems (build tools, tasks, runners, etc.) and dependencies management (Composer).

• You understand relational databases (MySQL/MariaDB/PostgreSQL), indexing strategies, and can design performant and scalable data models and SQL queries.

• You have experience working with debuggers/profilers (e.g. Datadog APM) to investigate performance bottlenecks and optimise application response time.

• You want to work with a very technical team, addressing deep problems under the hood, and you understand the value of writing great technical documentation and design documents.

• You are data driven and are passionate about using metrics to define and evaluate your engineering design decisions.

• You have an excellent written and spoken English (level C1/C2 on the CEFR scale)

• You embrace feedback - no one is perfect, neither are we. So let’s make this an opportunity to praise and learn from each other.

• Finally, you have a good sense of humor. Have fun with us, learn with us from mistakes and bring your good vibes!

Personio is an equal opportunities employer, committed to building an integrative culture where everyone feels welcomed and supported. We embrace uniqueness and understand that our diverse, values-driven culture makes us stronger. We are proud to have an inclusive workplace environment that will foster your development no matter your gender, civil status, family status, sexual orientation, religion, age, disability, education level, or race.Aside from our people, culture, and mission, check out some of the other benefits that make Personio a great place to work:

• Receive a competitive reward package – reevaluated each year – that includes salary, benefits, and pre-IPO equity
• Enjoy 28 days of paid vacation, plus an additional day after 2 and 4 years (because we love what we do, but we also love vacation!)
• Make an impact on the environment and society with 2 (fully paid) Impact Days –  one for an individual project of your choice and one for a company-wide initiative
• Receive generous family leave, child support, mental health support, and sabbatical opportunities with PersonioCares
• Find your best way to work with our office-led, remote-friendly PersonioFlex! Most teams offer a roughly 50% remote, 50% in-office working framework
• Invest in your development with an annual personal development budget to use on professional memberships, external certifications, conferences, and more
• Connect with your fellow Personios at regular company and team events like All Company Culture Week and local year-end celebrations
• Engage in a high-impact working environment with flat hierarchies and short decision-making processes