Senior Fullstack Software Engineer

🏢 Summary: Senior QA role focused on manual and automated testing of web applications and backend services. The offer involves building Playwright automation, validating cross-browser and API quality, and collaborating across the agile development lifecycle. 🗂️ Requirements: 5+ years of software QA experience, Manual and automated testing experience, Playwright automation experience, Cross-browser testing experience, JavaScript, TypeScript or React knowledge, REST API validation experience, Go backend understanding, CI/CD integration experience, Analytical, problem-solving and communication skills, Attention to detail, English resume 📃 Skills: Playwright, BrowserStack, JavaScript, TypeScript, React, REST, Postman, curl, Go, CI/CD 🏢 Description: About the company We are an e-commerce platform in Poland and a network of travel agencies offering a wide range of travel products. We are part of Wirtualna Polska Holding – Poland’s largest group of media and e-commerce companies. Alongside Wakacje.pl and the Invia brands, we scale our impact across the CEE market, driven by a shared #TravelMindset. In our daily work, we #Explore better ways to grow, #Engage through real ownership and teamwork, and #Enjoy building experiences that people genuinely look forward to. Send us your CV and… see you at Travelplanet.pl ! ✈️ Key responsibilities: Design, implement, and execute manual and automated test cases for web and backend services Develop and maintain automated test scripts using tools like Playwright Perform cross-browser and cross-device testing using platforms such as BrowserStack Collaborate closely with developers, product managers, and designers to ensure quality throughout the SDLC Identify, log, and track bugs, and proactively drive root-cause analysis and resolution Contribute to continuous improvement of QA processes, test coverage, and automation practices Analyze requirements and specifications to ensure testability and identify potential quality risks early Participate in code reviews and provide input on testability and test coverage Self-organized, detail-oriented, and comfortable working in an agile environment Strong communication skills and a collaborative mindset Required Qualifications: 5+ years of experience in software quality assurance , with a focus on both manual and automated testing. Strong hands-on experience with test automation tools and frameworks, particularly Playwright Experience with cross-browser testing, including platforms such as BrowserStack or similar tools. Solid knowledge of programming/scripting languages /frameworks (e.g.,  JavaScript, Typescript, React) Strong manual testing skills , including exploratory, regression, and edge case testing. Familiarity with RESTful APIs and tools like Postman or curl for API-level validation. Basic understanding of Go-based backends to support test design and troubleshooting. Experience with CI/CD pipelines and integrating automated tests into the development workflow Excellent analytical, problem-solving, and communication skills A passion for quality and a strong attention to detail We offer: Competitive Salary : commensurate with skills and experience Paid time off: is included in the service fee Flexible Working Hours : Our core hours are 9 AM to 3 PM Hybrid Work Model: Work 2 days in the office and 3 days from home Health and Wellness: Shared costs for sports activities and private medical care Life Insurance : Comprehensive coverage for peace of mind Employee Discounts: Access to corporate products and services at discounted prices If the above sounds like an interesting opportunity we would be more than happy to hear from you! Please send your resume in English.

🏢 Summary: Senior frontend/full-stack developer role focused on building resilient, enterprise-ready product features for a sports and health platform. The position involves React, TypeScript, Next.js, REST APIs, PostgreSQL, and close remote collaboration, with a hybrid schedule in Kraków. 🗂️ Requirements: 5+ years of professional development experience, Production experience with React and TypeScript, Production experience with Next.js App Router, REST API and data-validation experience, PostgreSQL and ORM experience, Ability to follow architectural documentation and team conventions, Git, code review, and Jira experience, Independent problem analysis and written feature planning/ADRs, Careful handling of healthcare data, schemas, and access logic, Strong written technical communication, Remote and asynchronous collaboration skills, Advanced English, Ability to complete a technical coding test without assistance, Availability to start within one month, Ability to work from the Kraków office 3 days per week 📃 Skills: React, TypeScript, Next.js, REST, Zod, PostgreSQL, Drizzle, Prisma, TypeORM, Git, Jira, Claude 🏢 Description: About the role You will be assisting in the understanding of, architecture, implementation, and quality of core Product Roadmap items intended to drive the project for our client forward. The ability to work with the team and collaborate is essential. You will have an immediate impact and be an early figure in the company today to help drive our growth. You will focus on solidifying our product and making it resilient as well as learning how to roll out enterprise-ready features. Required skills /knowledge and production experience/ React + TypeScript Next.js (App Router) — routing, server/client components, API routes REST API, data validation (example - Zod) PostgreSQL and ORM (Drizzle or similar — Prisma/TypeORM) Work according to the team's conventions and architectural documentation(ADR-y) — the ability to read and follow established standards before writing code Git, code review, ticketing (Jira) Coding with Claude /on daily basis/ Minimum of 5 years of professional experience developer with hands-on skills. Communication and other required skills Git, code review, ticketing (Jira) Independence in problem analysis and a willingness to plan before implementation (the project requires a written plan/ADR before each new feature). Accuracy and attention to detail—working with healthcare data requires caution when changing the schema and access logic. Good written communication—documentation, PR descriptions, tickets, and code review comments. Comfortable working in a distributed/remote team and asynchronous communication. Openness to feedback and a willingness to propose simpler solutions instead of over-engineering (the project explicitly avoids over-engineering). Sense of responsibility (ownership) for the delivered functionalities from design to implementation. Advanced English - hard must - daily calls with native CTO or CEO(weekly) . Ability to discuss technical problems, describe concept, architecture or planned feature. There's going to be (online or onsite in Krakow) technical coding test (without extra help) and English general and/or tech conversation. Awesome but not a must: Supabase (Auth, RLS, Postgres) AWS: S3, SQS, Lambda - designing or integrating with data processing pipelines (multipart upload, task queuing, workers) Terraform / IaC - ability to read infrastructure definitions (no need to write them yourself) Working with video / media data / large-volume files (e.g., recording processing, LiDAR, wearable data) Designing permission systems (RBAC) for multiple user roles OpenAPI / API contracts, documenting endpoints Experience in health, sports, telemedicine, or other sensitive/regulated data Application observability (Sentry, PostHog, or similar) Real-time integrations (chat/video SDKs like CometChat, WebSocket) Our benefits: Awesome and highly intense product /sports and health/ Private medical care and multisport card Flexible working hours (you can start between 8:00 -10:00 a.m.) Your choice of computer: Mac OS/Linux/Windows Upskilling budget English discussion classes every week Parking spot few mins from office Employee recommendation program. 🟢 The office is based in Kraków. We work 3 days from the office a week. 🟢 The process consists of 2 stages. We recruit remotely :) Ideal candidate should start within a month (no longer).

🏢 Summary: Join a global conversion technology team to build high-performance, personalized web funnels for meal brands. The role focuses on React, TypeScript, Next.js, edge delivery, MarTech integrations, experimentation, observability, and AI-assisted engineering workflows. 🗂️ Requirements: Professional software engineering experience, Deep React and TypeScript proficiency, Modern SSR rendering expertise, Edge runtime architecture experience, Edge caching, personalization, and latency knowledge, GenAI development workflow experience, A/B testing and feature-flagging experience, Frontend monitoring and observability experience 📃 Skills: React, TypeScript, Next.js, SSR, Vercel, Cloudflare, GenAI, Claude, Cursor, Figma, Contentful, Statsig, Optimizely, Jest, Cypress, OpenTelemetry, Honeycomb, Grafana, Sentry 🏢 Description: Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech. About the role: What's in the Box Conversions Tech empowers HelloFresh Group meal brands to achieve ambitious growth targets through a seamless and high-performing conversion funnel. As part of the Growth Alliance, you will drive marketing innovation by delivering advanced MarTech capabilities, conversion optimization, and data-driven growth strategies. You will build personalized web experiences using React, Next.js, and edge environments, tailoring user journeys based on intent, channel, and campaign data. In this role, you will integrate with our CMS, leverage experimentation frameworks, and utilize GenAI tools, such as Claude, Cursor, Figma, and Contentful MCPs, to accelerate architecture, design, and testing workflows. Working alongside machine learning, product, and design experts, you will ensure high-performance execution, maintaining strong Core Web Vitals and low-latency delivery across global desktop and mobile applications. What you’ll do: The Recipe Drive the architecture and delivery of personalized conversion pages and funnels using React, TypeScript, and Next.js, spanning SSR middleware design through to edge-layer caching strategies. Champion GenAI proficiency, embedding AI-driven workflows into development, debugging, and code-quality processes to accelerate execution velocity and output. Ensure top-tier funnel performance and application stability, optimizing Core Web Vitals, low-latency personalization, and multi-brand reliability at global scale. Architect and maintain the MarTech integration layer, behavioral lead-capture tools, and GTM event pipelines feeding downstream analytics and CRM systems. Implement robust automated testing strategies with Jest and Cypress, alongside frontend observability tools (OpenTelemetry, Honeycomb, Grafana, or Sentry) to embed deep traceability from initial design to release. Partner with cross-functional product, machine learning, and design experts to shape personalized user experiences and resolve complex technical trade-offs. What you’ll bring: The Ingredients Deep technical proficiency in React, TypeScript, and modern rendering patterns (SSR), supported by extensive professional software engineering experience. Proven track record architecting solutions using edge runtimes (such as Vercel Edge Functions or Cloudflare Workers) and understanding how edge caching directly impacts personalization and latency. Demonstrated GenAI expertise, with hands-on skill leveraging modern AI tools and workflows to enhance code quality, development speed, and overall technical standards. Practical application of A/B testing and feature-flagging frameworks (e.g., Statsig, Optimizely) alongside frontend monitoring and observability platforms. Strong collaborative mindset with an ability to communicate complex technical decisions clearly, share knowledge with peers, and drive results autonomously across cross-functional domains. Above all, we are looking for people who will make HelloFresh better. We believe there are many different ways of developing skills and we love diverse experiences! So even if you don’t “tick all the boxes” but think you’d thrive in this role, we would really like to learn more about you. What we offer: The Toppings Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Mennica Legacy Tower. The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit). Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you.  We aim to review your profile and respond within 5 business days.