We are seeking an experienced Staff Platform Engineer / Software Engineer who will serve as a technical leader with dozens of engineering teams. You are someone who enjoys bridging the gap between software engineering and systems architecture, and not just managing infra, but building Internal Developer Platform (IDP) on Kubernetes, and APIs that enable scalability, efficiency, productivity, and developer joy. You are a "doer" who can pivot from writing high-quality production code to influencing the architectural direction of our CI/CD pipelines and service catalogs (e.g., Backstage), as well as be the next frontier of Generative AI integration.

Our Developer Experience (DevEx) organization’s mission is to partner with SentinelOne engineering teams to accelerate the velocity of software delivery through continuous innovation and standardization. We are building a platform that serves nearly 1,000 engineers to release services and features to our customers, making it easy to move from POC to production safely and quickly. We're also transforming our CI/CD from a traditional pipeline into an AI-driven engine - you will help us build a platform where AI proactively helps developers write & ship code, generates high-coverage test suites on the fly, and performs the first pass of PR reviews with human-level context. 

What Will You Do?

• Partner with Engineers, Build & Automate: The engineering teams are our primary customers - you will be working with them to understand their pain points and find long term solutions.
  • You will be building the IDP as the "Golden Path", and tools that improve the quality of life and streamlining the development process for the teams, so that they can build without having to worry about the underlying infrastructure.
  • You will be also building scalable solutions in collaboration with other infrastructure teams.
• Modernize the Stack: Collaborate with architects to evaluate and implement modern tools (e.g., ArgoCD, GitHub Actions) and deployment strategies (Canary, Blue/Green).
• Lead the AI-Driven CI/CD Shift: Architect and implement AI-powered workflows that assist in code generation, automated testing, and intelligent PR analysis to eliminate developer friction.
• Operational Ownership: Identify causes of toil across engineering orgs and eliminate them through automation, enhancing overall system reliability and developer satisfaction.
• Cross-Functional Influence: Partner with Product, Security, and Finance teams to align technical roadmaps with business value and customer needs. You will influence strategy and ensure our platform is as lean as it is powerful.
• Impact: You will participate in the full software development lifecycle, including requirements analysis, architecture design, coding, testing, and deployment.
• Deal with global scale: Our security SW products protect 15,000 enterprise and government clients across the globe, incl. 4 of Fortune 10, and process 9+ Petabytes of data daily and 3+ Trillion security events across multiple AWS/GCP regions and GovCloud, supported by a large Kubernetes control plane with 80+clusters and tens of thousands of nodes.

Our stack: Go, Python; Kubernetes, Docker, AWS, GCP, FedRAMP; GitHub Actions, ArgoCD; GitHub Enterprise; depending on the requirements of the service for communication, we use Kafka, REST API, GraphQL, gRPC, etc.; Postgres, MongoDB, Redis, ClickHouse; Prometheus/Thanos, Grafana

What Skills and Knowledge Will You Bring?

• Demonstrated proficiency in Go or Python. Experience in the full SDLC, from requirements to production-ready code
• Experience with AWS and/or GCP. Knowledge of Kubernetes or similar orchestration systems
• Experience with CI/CD tooling at scale (e.g., GitHub Actions, ArgoCD, Jenkins etc.) and GitOps approach
• Strong experience with Terraform, Pulumi, or similar IaC frameworks
• Familiarity with DevEx fundamentals, including Service Catalogs (Backstage), REST APIs, or gRPC
• Familiarity with both SQL (Postgres) and NoSQL (MongoDB, ClickHouse, or Redis)
• You are passionate about (and ideally have experience in) integrating LLMs and AI agents into the developer workflow to drive productivity
• Excellent problem-solving skills, strong ownership and accountability, with proven experience driving large, impactful projects
• Strong communication skills and ability to articulate technical concepts and influence engineering direction across teams, departments, and stakeholders in multiple time zones

Why SentinelOne?

AI is redefining how the world operates and rewriting the rules of security in real time, and SentinelOne was built for this moment. From day one, we architected an AI-native platform designed to operate at machine speed, not as an add-on to legacy systems but as the foundation itself. If you want to build where innovation and impact move together, this is that place.

We invest in our Sentinels with comprehensive, competitive benefits designed to support you and your family:

• Salary starting from 5000 EUR/month. Annual bonus based on company performance, paid in two installments. The final base salary may be adjusted based on the individual skills and experience of the selected candidate.
• Enjoy flexible working hours and the option to work remotely from anywhere in Slovakia. We offer access to major co-working spaces for those who prefer an office environment. In Czechia, you can also work from our modern offices in Prague or Brno.
• Stock & Bonuses: Grant of Restricted Stock Units with a 4-year vesting plan, annual performance-based bonuses, and an employee stock purchase plan.
• Time Off & Well-being: Flexible Time Off, on top of the standard 5 weeks vacation, flexible paid sick days, fully paid Short Term Sick/Nursing Leave, 16-week parental leave, grandparent leave, and additional company holidays.
• Insurance & Wellbeing: Pension Insurance Contribution, Premium life insurance, Paid Multisport Benefit Card and a Global Employee Assistance Program.
• Work Perks: Monthly meal and well-being allowance, high-end MacBook/Windows laptop, work-from-home support, and Multisport card paid by SentinelOne.
• Growth & Community: LinkedIn Learning, internal mentoring, educational support, generous referral bonuses, and optional company events (sports, BBQs, charity).

Be part of an inclusive, innovative workplace that values belonging, flexibility, and growth!

We are seeking an experienced Staff Software Engineer / Platform Engineer who will serve as a technical leader with dozens of engineering teams. You are someone who enjoys bridging the gap between software engineering and systems architecture, and not just managing infra, but building Internal Developer Platform (IDP) on Kubernetes, and APIs that enable scalability, efficiency, productivity, and developer joy. You are a "doer" who can pivot from writing high-quality production code to influencing the architectural direction of our CI/CD pipelines and service catalogs (e.g., Backstage), as well as be the next frontier of Generative AI integration.

Our Developer Experience (DevEx) organization’s mission is to partner with SentinelOne engineering teams to accelerate the velocity of software delivery through continuous innovation and standardization. We are building a platform that serves nearly 1,000 engineers to release services and features to our customers, making it easy to move from POC to production safely and quickly. We're also transforming our CI/CD from a traditional pipeline into an AI-driven engine - you will help us build a platform where AI proactively helps developers write & ship code, generates high-coverage test suites on the fly, and performs the first pass of PR reviews with human-level context. 

What Will You Do?

• Partner with Engineers, Build & Automate: The engineering teams are our primary customers - you will be working with them to understand their pain points and find long term solutions.
  • You will be building the IDP as the "Golden Path", and tools that improve the quality of life and streamlining the development process for the teams, so that they can build without having to worry about the underlying infrastructure.
  • You will be also building scalable solutions in collaboration with other infrastructure teams.
• Modernize the Stack: Collaborate with architects to evaluate and implement modern tools (e.g., ArgoCD, GitHub Actions) and deployment strategies (Canary, Blue/Green).
• Lead the AI-Driven CI/CD Shift: Architect and implement AI-powered workflows that assist in code generation, automated testing, and intelligent PR analysis to eliminate developer friction.
• Operational Ownership: Identify causes of toil across engineering orgs and eliminate them through automation, enhancing overall system reliability and developer satisfaction.
• Cross-Functional Influence: Partner with Product, Security, and Finance teams to align technical roadmaps with business value and customer needs. You will influence strategy and ensure our platform is as lean as it is powerful.
• Impact: You will participate in the full software development lifecycle, including requirements analysis, architecture design, coding, testing, and deployment.
• Deal with global scale: Our security SW products protect 15,000 enterprise and government clients across the globe, incl. 4 of Fortune 10, and process 9+ Petabytes of data daily and 3+ Trillion security events across multiple AWS/GCP regions and GovCloud, supported by a large Kubernetes control plane with 80+clusters and tens of thousands of nodes.

Our stack: Go, Python; Kubernetes, Docker, AWS, GCP, FedRAMP; GitHub Actions, ArgoCD; GitHub Enterprise; depending on the requirements of the service for communication, we use Kafka, REST API, GraphQL, gRPC, etc.; Postgres, MongoDB, Redis, ClickHouse; Prometheus/Thanos, Grafana

What Skills and Knowledge Will You Bring?

• Demonstrated proficiency in Go or Python. Experience in the full SDLC, from requirements to production-ready code
• Experience with AWS and/or GCP. Knowledge of Kubernetes or similar orchestration systems
• Experience with CI/CD tooling at scale (e.g., GitHub Actions, ArgoCD, Jenkins etc.) and GitOps approach
• Strong experience with Terraform, Pulumi, or similar IaC frameworks
• Familiarity with DevEx fundamentals, including Service Catalogs (Backstage), REST APIs, or gRPC
• Familiarity with both SQL (Postgres) and NoSQL (MongoDB, ClickHouse, or Redis)
• You are passionate about (and ideally have experience in) integrating LLMs and AI agents into the developer workflow to drive productivity
• Excellent problem-solving skills, strong ownership and accountability, with proven experience driving large, impactful projects
• Strong communication skills and ability to articulate technical concepts and influence engineering direction across teams, departments, and stakeholders in multiple time zones

Why SentinelOne?

AI is redefining how the world operates and rewriting the rules of security in real time, and SentinelOne was built for this moment. From day one, we architected an AI-native platform designed to operate at machine speed, not as an add-on to legacy systems but as the foundation itself. If you want to build where innovation and impact move together, this is that place.

We invest in our Sentinels with comprehensive, competitive benefits designed to support you and your family:

• Salary starting from 5000 EUR/month. Annual bonus based on company performance, paid in two installments. The final base salary may be adjusted based on the individual skills and experience of the selected candidate.
• Enjoy flexible working hours and the option to work remotely from anywhere in Slovakia. We offer access to major co-working spaces for those who prefer an office environment. In Czechia, you can also work from our modern offices in Prague or Brno.
• Stock & Bonuses: Grant of Restricted Stock Units with a 4-year vesting plan, annual performance-based bonuses, and an employee stock purchase plan.
• Time Off & Well-being: Flexible Time Off, on top of the standard 5 weeks vacation, flexible paid sick days, fully paid Short Term Sick/Nursing Leave, 16-week parental leave, grandparent leave, and additional company holidays.
• Insurance & Wellbeing: Pension Insurance Contribution, Premium life insurance, Paid Multisport Benefit Card and a Global Employee Assistance Program.
• Work Perks: Monthly meal and well-being allowance, high-end MacBook/Windows laptop, work-from-home support, and Multisport card paid by SentinelOne.
• Growth & Community: LinkedIn Learning, internal mentoring, educational support, generous referral bonuses, and optional company events (sports, BBQs, charity).

Be part of an inclusive, innovative workplace that values belonging, flexibility, and growth!

As a Windows Low Level Engineer - Endpoint security, you will design and develop advanced security features for SentinelOne’s Windows endpoint protection platform, operating across both user-mode and kernel-mode environments. You will build and optimize mission-critical components including anti-tampering protections, network sensors, and agent infrastructure while solving complex performance and stability challenges at massive scale. By researching Windows internals and debugging deep system issues, you will collaborate with distributed engineering teams to deliver high-impact security capabilities protecting millions of devices worldwide.

We are seeking a highly skilled and experienced Software Engineer with a strong background in low-level C++ programming and a deep understanding of Windows OS, to help us in developing our Endpoint Protection product, the core part of our business, and to join one of our Platform group teams. (We're currently growing multiple teams and are open to new colleagues with a wide variety of backgrounds within Windows development!).

The Platform group teams are in charge of some of our most complex low-level areas, such as:

• Windows agent’s Anti-Tampering (self-protection from malware attempting to harm the agent), network sensors, device control, and other kernel-side features involving both research and development,
• usermode security & agent infrastructures - e.g. installers, logging, services such as communication layer & interfaces for our Windows agent, for improving the quality, performance & stability of the agent and making the user experience smoother.

By joining our group, you will collaborate with talented engineers who are leading a feature through the whole development lifecycle. Your work will have an impact on millions of endpoints in one of the mainstream areas of the EPP/EDR agent of SentinelOne - a product recognized 5x-in-a-row as Gartner MQ Leader, scoring highly in many MITRE Att&ck assessments, valued by users in Gartner Peer Insights and more.

What will you do?

• As a new member of one of our distributed development teams, you will work in both user-mode & kernel-mode, and deal with a large variety of fields.
• You will have the chance to design, develop primarily in modern C++ (23), test and debug the most complicated real-world problems (often unseen before). In order to successfully deal with this challenge, you will continuously enrich your knowledge and experience with Windows OS internals & Kernel, Endpoint Protection, and Endpoint Detection & Response eco-system.
• Our teams design and execute significant new features, as well as rewrite and reimplement the existing ones from scratch. You will also deal with extraordinary performance & optimization challenges, given the scale of our cybersecurity SW (handling hundreds of billions of events every day).
• Your work will influence the security of tens of millions of Windows devices, that we protect at enterprise & government customers across the globe (incl. 4 of Fortune 10 and hundreds of Global 2000).
• You’ll also be encouraged to share knowledge within both Platform teams and the broader Windows group.

What skills & knowledge should you bring?

• Multiple years of experience as a software engineer in the area of lowlevel programming using modern C++ (or using C and a willingness to learn modern C++)
• Hands-on experience and in-depth understanding of Windows OS design & internals, Windows low-level development, with debugging of Windows applications and familiarity with related standard debugging and profiling tools
• Previous experience working on a production-grade product with a wide-scale deployment
• Great communication skills and the ability to work both independently and with peers from different time zones, problem-solving and out-of-the-box thinking
• Attention to detail and high coding standards
• An advantage: experience with Windows Kernel and Windows Drivers development, experience in security-oriented development, with reversing or malware analysis

Why Us? 

Join a cutting-edge company where you'll take on extraordinary challenges alongside top industry talent. Enjoy flexible working hours and the option to work remotely from anywhere in Slovakia. We offer access to major co-working spaces for those who prefer an office environment. In Czechia, you can also work from our modern offices in Prague or Brno.

Salary starting from 5000 EUR/month
Annual bonus based on company performance, paid in two instalments
The final base salary may be adjusted based on the individual skills and experience of the selected candidate.

Competitive Benefits Package:

• Stock & Bonuses: Grant of Restricted Stock Units with a 4-year vesting plan, annual performance-based bonuses, and an employee stock purchase plan.
• Time Off & Well-being: Flexible Time Off, on top of the standard 5 weeks vacation, flexible paid sick days, fully paid Short Term Sick/Nursing Leave, 16-week parental leave, grandparent leave, and additional company holidays.
• Insurance & Wellbeing: Pension Insurance Contribution, Premium life insurance, and a Global Employee Assistance Program.
• Work Perks: Monthly meal and well-being allowance, high-end MacBook/Windows laptop, work-from-home support, and in-office refreshments.
• Growth & Community: LinkedIn Learning, internal mentoring, educational support, generous referral bonuses, and optional company events (sports, BBQs, charity).

Be part of an inclusive, innovative workplace that values belonging, flexibility, and growth!

Help us evolve and scale the Bloomreach Engagement UI design system and become our new UI Developer. Implement new designs, and create and maintain UI components used across our product. You’ll sit at the intersection of design, engineering, and product, turning ideas into intuitive, robust, and beautiful interfaces. For candidates at the P3 / Senior level, starting monthly compensation begins at 3 500 € gross, with the final offer tailored for each candidate based on their skills and experience. Stock options and a comprehensive benefits package are also included. Working in one of our Central European offices (Bratislava, Brno, Prague) or from home on a full-time basis, you’ll become a core part of our Frontend Team. 

What tech stack do we use?

• Our styles are written in Sass (SCSS).
• Our Engagement app currently runs on Angular.
• We use JavaScript/TypeScript for application logic.
• We use Git for version control.
• Our build process uses Nx + Angular CLI, with custom ts-node and Node scripts.

You don’t need to be an expert in every framework from day one, but you should be comfortable working in at least one modern SPA framework (Angular, React, or Vue) and curious to learn the others.

What challenge awaits you?

As a Bloomreach UI Developer, you will be the go‑to person for:

• Designing and implementing UI components and patterns that are reused across the Engagement app.
• Evolving our in‑house UI framework and design system so that it’s easier and faster for product and engineering teams to build consistent experiences.
• Collaborating tightly with product designers to bring new ideas to life and to keep our visual language coherent.
• Bringing a CSS architecture mindset to a large codebase so styles remain modular, predictable, and easy to refactor over time.
• Leveraging AI in your daily work — from code generation and refactoring suggestions to documentation and quick UI experiments.

Our goal is to make our Engagement app easy to use and visually pleasant for our customers. You’ll operate on three levels: bug fixing, maintenance and creation of UI components, and implementation of new designs — with a strong focus on the design‑system layer and product outcomes. Having a great developer experience is also something we’re serious about.

Your job will be to:

1. Expand & maintain our UI design system and components library
2. Improve & maintain our in‑house SCSS framework
3. Implement new designs and product experiences

a. Expand & maintain our UI design system and components library

• Understand how our components work under the hood and enable frontend developers to build advanced interfaces using our framework.
• Design and implement reusable UI primitives (tokens, layout primitives, form controls) and higher‑level components in a way that can be applied across Angular applications.
• Revise code of the components frequently and keep up with the latest possibilities of CSS (e.g. container queries, cascade layers, new color functions) and how they affect our architecture.
• Ensure cross‑browser compatibility (modern browsers only) and good accessibility practices.
• Shape visual representation and behavior together with designers, acting as a technical partner in design reviews.
• Maintain and improve our internal “Showcase”/component gallery as a single source of truth for our design system (documentation, usage examples).

b. Improve & maintain our in‑house SCSS framework

• Extend and update core functions, mixins, and utilities that help us write styles efficiently and keep them easy to reason about.
• Evolve our CSS architecture (e.g. layers, naming conventions, design tokens, theming approach) to keep the system scalable as the product grows.
• Identify and remove legacy styles, dead code, and inconsistencies, focusing on performance and maintainability.
• Use AI‑powered tooling where it makes sense (code search, refactor suggestions, documentation summaries) to speed up this work.

c. Implement new designs and product experiences

• Update existing screens to match the latest design specs and interaction patterns.
• Research the best strategies for comprehensive changes — understanding how components are reused across screens and in different contexts — and propose pragmatic rollout plans.
• Work closely with product managers and designers to make trade‑offs that balance UX quality, technical feasibility, and delivery timelines.
• Ensure that visual and structural changes don’t introduce any bugs — partnering with QA and using tools (including AI‑assisted testing where appropriate) to catch regressions early.

Your success story will be:

• In 30 days, you will learn how our methodology works, ship your first UI bug fixes, and start contributing to small improvements in our design system.
• In 90 days, you will understand how our core components and SCSS framework work, co‑own at least one part of the design system, and support other frontend developers on a sprint project — including reviewing their usage of UI components and any styling or template changes.
• In 180 days, you will be able to tackle most tasks on your own, question and challenge designs with confidence, propose and drive improvements to our UI architecture, and help shape the future roadmap of our design system.

You have the following experience and qualities:

1. Professional — CSS, Sass, working with browser,  programming skills, Git, knowledge of Angular (optionally React or Vue), familiarity with web components is an advantage.
2. Personal — team player, honesty, responsibility, motivation

Professional experience

• Strong CSS and Sass skills — CSS will be your bread and butter and for a smooth experience it’s good if you know: selector types and specificity, fonts, relative units, box sizing, positioning, flexbox, grid, responsiveness, pseudo elements, animations, and their performance impacts.
• Experience with writing maintainable, modular, component‑based CSS
• Experience building or significantly contributing to a design system or UI component library (tokens, components, documentation, versioning, rollout).
• Comfortable with intermediate programming in JavaScript or TypeScript — structuring code, working with asynchronous logic, and debugging — and using that knowledge to implement or adjust UI behavior in Angular/React/Vue components.
• Hands‑on experience with at least one modern frontend framework (Angular, React, or Vue). Curiosity to apply design‑system thinking across frameworks is a plus.
• Familiarity with Git and standard workflows (branching, pull/merge requests, code review).
• A genuine passion for modern CSS and web UI, keeping an eye on new specs and browser capabilities and knowing when (and when not) to use them.
• An architecture mindset when it comes to stylesheets: you think in layers, dependencies, and long‑term maintainability, not just “what works right now”.
• Openness to leveraging AI in the development process — for example, using AI tools to explore refactoring options, generate variants, or support documentation — while still owning the final quality of the solution.

Personal qualities

• Product‑oriented mindset: you care about the problem we’re solving and the impact on the user, not only the implementation details.
• Ability to work in a team where we value diversity and open‑mindedness.
• Willingness to discuss problems honestly, keep focus on what’s important, and look for outcomes, not blame.
• Sense of ownership and responsibility — you follow through on what you start and care about the quality of your work in production.
• Motivation to grow: you enjoy your craft, seek feedback, and look for ways to improve both the product and the system you’re building on.

Excited? Join us and transform the future of commerce experiences.

#LI-KP1

Help us evolve and scale the Bloomreach Engagement UI design system and become our new UI Developer. Implement new designs, and create and maintain UI components used across our product. You’ll sit at the intersection of design, engineering, and product, turning ideas into intuitive, robust, and beautiful interfaces. Working in one of our Central European offices (Bratislava, Brno, Prague) or from home on a full-time basis, you’ll become a core part of our Frontend Team. 

What tech stack do we use?

• Our styles are written in Sass (SCSS).
• Our Engagement app currently runs on Angular.
• We use JavaScript/TypeScript for application logic.
• We use Git for version control.
• Our build process uses Nx + Angular CLI, with custom ts-node and Node scripts.

You don’t need to be an expert in every framework from day one, but you should be comfortable working in at least one modern SPA framework (Angular, React, or Vue) and curious to learn the others.

What challenge awaits you?

As a Bloomreach UI Developer, you will be the go‑to person for:

• Designing and implementing UI components and patterns that are reused across the Engagement app.
• Evolving our in‑house UI framework and design system so that it’s easier and faster for product and engineering teams to build consistent experiences.
• Collaborating tightly with product designers to bring new ideas to life and to keep our visual language coherent.
• Bringing a CSS architecture mindset to a large codebase so styles remain modular, predictable, and easy to refactor over time.
• Leveraging AI in your daily work — from code generation and refactoring suggestions to documentation and quick UI experiments.

Our goal is to make our Engagement app easy to use and visually pleasant for our customers. You’ll operate on three levels: bug fixing, maintenance and creation of UI components, and implementation of new designs — with a strong focus on the design‑system layer and product outcomes. Having a great developer experience is also something we’re serious about.

Your job will be to:

1. Expand & maintain our UI design system and components library
2. Improve & maintain our in‑house SCSS framework
3. Implement new designs and product experiences

a. Expand & maintain our UI design system and components library

• Understand how our components work under the hood and enable frontend developers to build advanced interfaces using our framework.
• Design and implement reusable UI primitives (tokens, layout primitives, form controls) and higher‑level components in a way that can be applied across Angular applications.
• Revise code of the components frequently and keep up with the latest possibilities of CSS (e.g. container queries, cascade layers, new color functions) and how they affect our architecture.
• Ensure cross‑browser compatibility (modern browsers only) and good accessibility practices.
• Shape visual representation and behavior together with designers, acting as a technical partner in design reviews.
• Maintain and improve our internal “Showcase”/component gallery as a single source of truth for our design system (documentation, usage examples).

b. Improve & maintain our in‑house SCSS framework

• Extend and update core functions, mixins, and utilities that help us write styles efficiently and keep them easy to reason about.
• Evolve our CSS architecture (e.g. layers, naming conventions, design tokens, theming approach) to keep the system scalable as the product grows.
• Identify and remove legacy styles, dead code, and inconsistencies, focusing on performance and maintainability.
• Use AI‑powered tooling where it makes sense (code search, refactor suggestions, documentation summaries) to speed up this work.

c. Implement new designs and product experiences

• Update existing screens to match the latest design specs and interaction patterns.
• Research the best strategies for comprehensive changes — understanding how components are reused across screens and in different contexts — and propose pragmatic rollout plans.
• Work closely with product managers and designers to make trade‑offs that balance UX quality, technical feasibility, and delivery timelines.
• Ensure that visual and structural changes don’t introduce any bugs — partnering with QA and using tools (including AI‑assisted testing where appropriate) to catch regressions early.

Your success story will be:

• In 30 days, you will learn how our methodology works, ship your first UI bug fixes, and start contributing to small improvements in our design system.
• In 90 days, you will understand how our core components and SCSS framework work, co‑own at least one part of the design system, and support other frontend developers on a sprint project — including reviewing their usage of UI components and any styling or template changes.
• In 180 days, you will be able to tackle most tasks on your own, question and challenge designs with confidence, propose and drive improvements to our UI architecture, and help shape the future roadmap of our design system.

You have the following experience and qualities:

1. Professional — CSS, Sass, working with browser,  programming skills, Git, knowledge of Angular (optionally React or Vue), familiarity with web components is an advantage.
2. Personal — team player, honesty, responsibility, motivation

Professional experience

• Strong CSS and Sass skills — CSS will be your bread and butter and for a smooth experience it’s good if you know: selector types and specificity, fonts, relative units, box sizing, positioning, flexbox, grid, responsiveness, pseudo elements, animations, and their performance impacts.
• Experience with writing maintainable, modular, component‑based CSS
• Experience building or significantly contributing to a design system or UI component library (tokens, components, documentation, versioning, rollout).
• Comfortable with intermediate programming in JavaScript or TypeScript — structuring code, working with asynchronous logic, and debugging — and using that knowledge to implement or adjust UI behavior in Angular/React/Vue components.
• Hands‑on experience with at least one modern frontend framework (Angular, React, or Vue). Curiosity to apply design‑system thinking across frameworks is a plus.
• Familiarity with Git and standard workflows (branching, pull/merge requests, code review).
• A genuine passion for modern CSS and web UI, keeping an eye on new specs and browser capabilities and knowing when (and when not) to use them.
• An architecture mindset when it comes to stylesheets: you think in layers, dependencies, and long‑term maintainability, not just “what works right now”.
• Openness to leveraging AI in the development process — for example, using AI tools to explore refactoring options, generate variants, or support documentation — while still owning the final quality of the solution.

Personal qualities

• Product‑oriented mindset: you care about the problem we’re solving and the impact on the user, not only the implementation details.
• Ability to work in a team where we value diversity and open‑mindedness.
• Willingness to discuss problems honestly, keep focus on what’s important, and look for outcomes, not blame.
• Sense of ownership and responsibility — you follow through on what you start and care about the quality of your work in production.
• Motivation to grow: you enjoy your craft, seek feedback, and look for ways to improve both the product and the system you’re building on.

Excited? Join us and transform the future of commerce experiences.

#LI-KP1

Are you looking for a cutting-edge tech stack to work with and to make an impact on a daily basis? We are currently forming a team of software engineers dedicated to developing and maintaining Web & Mobile SDKs for our customers, and we are looking for a new colleague to join as a Senior Software Engineer for JS Web SDK & React Native Mobile SDK (Engagement). For candidates at the P3 / Senior Software Engineer level, starting monthly compensation begins at 3700 € gross, with the final offer tailored for each candidate based on their skills and experience. Stock options and a comprehensive benefits package are also included. Working in one of our Central European offices (Brno, Prague, Bratislava) or from home on a full-time basis, you‘ll become a core part of the Engineering Team.

What challenge awaits you?

As a Senior Software Engineer for JS Web SDK & React Native Mobile SDK at our company, you'll encounter exciting, high-end technical challenges. You'll be part of a team that delivers innovative features, enabling our clients to build powerful mobile applications using Web & Mobile SDKs on platforms of their preference (Web: TypeScript, Mobile Natives: Android, iOS, Mobile Wrappers: React Native, Flutter). These SDKs track user behavior and provide capabilities to deliver personalized content. You’ll work on implementing and extending components that provide features like push notifications, in-app messaging, tracking, dynamic rendering, and many more. We will encourage you to explore and engage with various parts of our platform. Your primary focus will be in JavaScript / TypeScript for Web & Mobile React Native SDK Wrapper.

Your job will be to:

1. Design & Deliver new features
2. Ensure quality and compatibility
3. Support and Maintain owned components

a. Design & Deliver new features

• Translate business requirements for product features into detailed technical specifications and comprehensive design documents.
• Define and develop new features with a strong emphasis on quality, usability, and performance.
• Build, publish and monitor new versions of React Native Platform, ensuring seamless adoption.
• Stay updated with the latest industry trends and technologies to incorporate best practices into the development process.

b. Ensure quality and compatibility

• Implement robust testing, and validation processes to ensure the reliability and stability of the new features.
• Measure and tune client-side performance of our features.
• Continuously improve the technical quality and ease of use of Web & React Native SDKs.
• Make sure we utilize all the mobile technologies in the best way - ensuring our Web & React Native SDKs are functional, secure and high performance. 
• Conduct regular code reviews and use static code analysis tools to maintain high code quality.
• Collaborate with QA engineers to develop comprehensive test plans and automated tests. 

c. Support and Maintain owned components

• Provide ongoing support and maintenance for existing features, including troubleshooting issues, fixing bugs, and implementing enhancements.
• Support our client-facing colleagues in the investigation of possible issues (L3 support).
• Document code including guides, configuration instructions, feature descriptions, design decisions, and operational procedures to facilitate ongoing maintenance and knowledge sharing.
• Utilize feedback from users and stakeholders to continually improve the functionality and usability of Mobile SDKs.

What tech stack do we have for you?

• Web JavaScript / TypeScript SDK: JavaScript, TypeScript, HTML/CSS, Mustache, Jest, Karma, Docker
• React Native Wrapper Mobile SDK (Android & iOS): React Native, JavaScript & TypeScript, CocoaPods, Yarn, npm, Babel, Jest
• Common Tech Stack: Software & Tools - Grafana, Sentry, GitHub, GitLab, Jira, Productboard

You will be developing new features and maintaining the codebase to ensure compatibility with different versions. Therefore, you should be passionate about new features in mobile technologies, and be keen to investigate how personalization may work in the context of today's privacy-focused digital world.

Both Web & Mobile SDKs are being integrated with internal APIs written in Golang & Python, which run on top of Kubernetes and Google Cloud. While these won’t be your primary focus, we highly value your involvement in other parts of the platform.

Your success story will be:

• In 30 Days: Successfully onboard, get familiar with Web JavaScript / TypeScript & React Native Mobile SDKs, and contribute to ongoing tasks, demonstrating understanding of the codebase and team processes.
• In 90 Days: Contribute to design discussions and independently deliver high-quality code for assigned features. Participate in investigating and resolving production issues.
• In 180 Days: Independently manage larger tasks, contribute to team improvements, and confidently handle L3 support, investigating and resolving production issues.

You have the following experience and qualities:

1. Professional — Proven experience in web & mobile development, knowledge of wrappers, mobile ecosystem, system design, and maintenance.
2. Personal — Demonstrates strong initiative, ability to work within a team, communication skills, and a commitment to continuous learning and improvement.

Professional experience

• Proven experience in the area of web & mobile development, which is essential for building SDKs for web browsers and React Native mobile applications.
• Overview of technologies and programming languages used for wrapping mobile applications.
• Solid understanding of the mobile development ecosystem. An experience in building libraries or SDKs is an advantage. Familiarity with the build and publishing of mobile applications.
• Experience with dynamic rendering would be a valued asset.
• Experience with version control systems (Git) and CI/CD pipelines. We utilize Git for code management and CI/CD pipelines for efficient development and deployment.

Personal qualities

• Demonstrates strong initiative and a proactive approach to problem-solving.
• Excellent communication and collaboration skills, with the ability to work effectively within a team.
• A genuine passion for learning new technologies and keeping up-to-date with the latest advancements.
• A commitment to delivering high-quality work and a dedication to continuous improvement.

#LI-KP1

Are you looking for a cutting-edge tech stack to work with on a daily basis? We are currently expanding our Campaigns team and are looking for a new colleague to join as a Senior Software Engineer.

For candidates at the P3 / Senior Software Engineer level, starting monthly compensation begins at 3700 € gross, with the final offer tailored for each candidate based on their skills and experience. Stock options and a comprehensive benefits package are also included. Working in one of our Central European offices (Bratislava, Brno, Prague) or from home on a full-time basis, you‘ll become a core part of the Engineering Team.

What challenge awaits you?

As a Senior Software Engineer at our company, you'll come face-to-face with exciting, high-end technical challenges. You'll be a part of a team that delivers magical customer experiences through personalized omnichannel marketing campaigns. You’ll work on  implementing new microservices into our architecture, managing high-throughput systems, and enhancing the speed and reliability of our platform. You will utilize cutting-edge AI-powered solutions, such as GenAI and LLMs. 

You'll collaborate closely with other engineering teams and product managers to ensure seamless integration of our campaigns automation features with the rest of our platform, fostering a culture of collaboration and innovation. This role offers a unique opportunity to combine your technical expertise with a passion for customer experience enhancement and a desire to empower businesses with data-driven personalization.

Your job will be to:

1. Design & Deliver new features
2. Ensure quality and performance of developed solution
3. Support and Maintain owned components

a. Design & Deliver new features

• Translate business requirements for product features into technical specifications and design documents.
• Collaborate with other engineering teams to ensure a unified software architecture.
• Define and develop back-office API endpoints as well as high-performance serving endpoints.
• Develop and implement high-throughput, scalable and reliable systems to support new features.
• Deploy and monitor new features in production, ensuring seamless integration with existing systems.

b. Ensure quality and performance of developed solution

• Perform API testing, including unit tests, system tests and performance tests.
• Implement monitoring systems and dashboards to track the performance of our systems in production, identify potential issues, and optimize for speed and cost efficiency.
• Contribute to developing and implementing DevOps best practices within the team.

c. Support and Maintain owned components

• Maintain end-to-end features, encompassing microservices, back-office APIs, and high-performance serving APIs.
• Provide ongoing support and maintenance for existing features, including troubleshooting issues, fixing bugs, and implementing enhancements.
• Support our client-facing colleagues in the investigation of possible issues (L3 support).
• Document code, design decisions, and operational procedures to facilitate ongoing maintenance and knowledge sharing.

What technologies and tools does the Campaigns team work with?

• Programming languages - Go, Python
• Google Cloud Platform services - GKE, BigQuery, BigTable, GCS, VertexAI 
• Data Storage and Processing - MongoDB, Redis, Kafka 
• Software and Tools - Grafana, Gitlab, Jira, Productboard, PagerDuty, CursorAI, Copilot 

The owned area focuses on Marketing Campaigns Automation, including scheduling, audience management, content personalization and delivery. We support various marketing channels, such as Mobile Messaging, Emails, SMS/MMS, Push Notifications and Webhooks. We use Jinja for personalization and utilize ML models for content generation. Therefore, having experience in the mentioned areas is an advantage.

Your success story will be:

• In 30 Days: Successfully onboard and contribute to ongoing tasks, demonstrating understanding of the codebase and team processes.
• In 90 Days: Contribute to design discussions and independently deliver high-quality code for assigned features. Participate in investigating and resolving production issues.
• In 180 Days: Independently manage larger tasks, contribute to team improvements, and confidently handle L3 support, investigating and resolving production issues.

You have the following experience and qualities:

1. Professional — Proven experience in Go or Python engineering, system design, and maintenance in the area of campaign automation.
2. Personal — Demonstrates strong initiative, ability to work within a team, communication skills, and a commitment to continuous learning and improvement.

Professional experience

• Proven experience in at least one of the following languages: Go or Python, which are essential for building our data-driven features.
• Solid understanding of microservice-oriented architecture and experience in building systems with high throughput and low latency APIs. Familiarity with service orchestration and management (e.g. GKE).
• Experience with version control systems (Git) and CI/CD pipelines. We utilize Git for code management and CI/CD pipelines for efficient development and deployment.
• Familiarity with database management (preferably MongoDB and Redis) and event streaming (e.g. Apache Kafka).
• Experience with integrating omnichannel communication such as Mobile Messaging, Emails, SMS/MMS, Push Notifications and Webhooks would be a valued asset.
• Interest in Generative AI and its applications is a plus.

Personal qualities

• Demonstrates strong initiative and a proactive approach to problem-solving.
• Excellent communication and collaboration skills, with the ability to work effectively within a team.
• A genuine passion for learning new technologies and keeping up-to-date with the latest advancements.
• A commitment to delivering high-quality work and a dedication to continuous improvement.

Excited? Join us and transform the future of commerce experiences.

#LI-KP1