• Serve as Senior Project Manager for ongoing environmental assessment and remediation projects across California • Manage project scope, schedules, budgets, and deliverables in compliance with applicable regulatory requirements • Act as a point of contact for clients and regulatory agencies, managing expectations and facilitating technical discussions at all project stages • Provide technical oversight and guidance to project teams, including collaboration with geologists, engineers, and field staff • Prepare, review, and approve high-quality technical reports and deliverables • Ensure projects are completed efficiently, accurately, and in accordance with industry standards

• Collaborate with 3rd party integrators and internal engineering teams to scale R&D solutions into high volume production processes • Drive process development work to quickly solve problems and optimize for cost, quality, and efficiency • Participate in FAT/SAT, IQ/OQ/PQ, and other commissioning activities • Develop, validate, and document manufacturing process improvements including automation, equipment utilization, fixture design, etc.

Role Description Lead Performance Engineer needed to join our growing team. We are looking for a multi-faceted professional who brings a blend of deep technical knowledge, strong leadership qualities, and a strategic, consultative mindset. You have extensive, hands-on experience in performance engineering, with a demonstrable history of improving performance for complex, large-scale, highly transactional applications. You are someone who not only solves technical problems but also builds relationships, guides teams, and drives business value. What you’ll be doing - Leadership, Strategy & Client Engagement - Act as a performance engineering consultant for key clients, building strong relationships with internal and external stakeholders, providing expert guidance, and confidently leading technical discussions to non-technical audiences. - Champion the value of performance engineering across the business, demonstrating its impact on user experience, conversion, and client ROI. - Mentor and guide junior to mid-level engineers, fostering a culture of performance excellence and continuous learning. - Contribute to and implement wider performance engineering strategies, evolving practices, and tooling (e.g., K6, Playwright, APM tools). - Demonstrate strong AI literacy, with practical experience using generative AI (e.g., LLMs, code-gen tools) as a productivity multiplier for tasks such as script/data generation and analysis. Drive innovation in Performance Monitoring and Testing using AI. - Collaborate with account and leadership teams to identify opportunities and contribute to commercial proposals. - Hands-on & Release Activities - Lead performance testing efforts, including workload modeling, test execution, root cause analysis, and reporting. - Develop and present clear, actionable reports on key performance metrics (including Core Web Vitals) to both technical and business stakeholders. - Own the configuration and maintenance of APM and observability tools (e.g., New Relic, DataDog, Dynatrace), including designing meaningful dashboards and robust alerting strategies, as dedicated observability engineers are not always present. - Act as the performance authority within development teams, providing expertise and oversight, particularly regarding the impact of changes on analytics and sales revenue. - Drive the agenda for performance optimization, introducing new testing capabilities within allocated projects. Qualifications - Technical Expertise - Programming: Strong proficiency in JavaScript/TypeScript is critical for new development in K6; additional languages (e.g., Python, Java) are a plus. - Performance Tooling: Deep, practical expertise with APM/RUM tools like New Relic (our primary tool), DataDog, AppDynamics, or Dynatrace. Strong hands-on proficiency with modern load testing tools, specifically K6 and Playwright; experience with JMeter and Locust is also valuable. Experience with K6 browser testing is a significant advantage. - Cloud Platform Experience: Demonstrable experience on major cloud platforms (e.g., AWS, GCP, Azure). - Web Technologies: Solid experience with front-end performance analysis (Core Web Vitals) and a strong grasp of platforms and architectural concepts (e.g., Next.js, Magento, SAP Hybris, Shopify). - Analytical Skills: Strong analytical and problem-solving skills, with an understanding of concepts like parameterization in performance testing. - Leadership & Soft Skills - Communication: Exceptional communication skills with the ability to curate the right level of content for different audiences, from developers to senior leadership. - Growth Mindset: A proactive, self-starting attitude with the drive to push boundaries and champion best practices. You remain cool and collected under pressure, can handle constructive feedback, and have a keen awareness of emerging technologies. - Mentorship & Collaboration: A passion for mentoring with proven experience guiding less experienced engineers. You share knowledge proactively, collaborate across disciplines, and advocate for integrating performance early in the SDLC. - Strategic Thinking: Ability to connect dots between complex business challenges and technical solutions, collaborating with architects and other subject matter experts to drive results, moving beyond a siloed approach. - Consultancy & Business Acumen - Client Leadership: An assertive and confident approach to client engagement, with the ability to act as a trusted advisor and stand your ground effectively on large, complex projects. - Commercial Mindset: Strong commercial acumen, comfortable discussing business drivers like cost and ROI, and an eagerness to contribute to business development activities. Requirements - Deeper eCommerce Expertise: Proven experience in performance testing and analysis of e-commerce applications, preferably with platforms like IBM WebSphere Commerce, SAP Hybris, or Magento, or SFCC Sports. - Broader Stack Exposure: Experience with SRE practices, caching/CDNs, containerisation (Docker/Kubernetes), or infrastructure-as-code (e.g., Terraform) from a performance perspective. - Continuous Delivery Integration: Experience implementing performance testing and performance gates in CI/CD pipelines, including test automation, environment strategy, and integration with observability tooling. - Formal Line Management Experience: Experience managing one or more team members with accountability for professional development, performance management, and day-to-day well-being. - Frontend Performance Analysis: Experience with front-end page load analysis, profiling, and optimization using tools like WebPageTest, PageSpeed Insights, SpeedCurve, or sitespeed.io. Benefits - We offer net hourly rate for B2B cooperation ranging from 120 - 180 PLN, dependent on your skills and experience. - Alongside the opportunity to work with some of the most exciting brands around the world, we’ll also prioritise your career development and help you grow your skills. - We’ll empower you to make a difference, allow you to be yourself, and respect who you are. - Permanent only: We offer a great benefits package including a discretionary bonus scheme, training opportunities, competitive pension, medical insurance, life assurance, social events, opportunities to buy and sell holidays, family friendly policies, discounts with hundreds of retailers and much more.

• Own and continuously evolve our cloud WAF stack defining and tuning rules, policies, and traffic flows to protect public APIs and frontends at scale, while proactively reducing noise and false positives. • Build and maintain end‑to‑end HTTP/HTTPS observability, including structured logging, dashboards, alerting, and synthetic checks, so that performance issues, misconfigurations, and attacks are detected and triaged early. • Drive WAF and networking infrastructure as code (IaC), fully integrated into CI/CD pipelines, ensuring changes are repeatable, auditable, tested, and secure, and helping to reduce configuration drift across environments. • Design and operate VPCs and core network services (routing, DNS, VPNs, and third‑party connectivity), making sure they are resilient, scalable, and aligned with our global network and security architecture. • Automate key deployment and configuration workflows (e.g., onboarding and decommissioning sites, rule and policy lifecycle, failover between WAF providers), minimizing manual work, human error, and operational risk. • Lead and actively participate in incident response for network and WAF‑related security, performance, and availability events, including triggering WAF DRP procedures, executing controlled failovers, and driving post‑mortems and follow‑up remediation. • Partner closely with Information Security and Compliance to ensure the network and WAF architecture meets regulatory and industry standards (e.g., PCI, SOX), providing audit‑ready evidence and continuously strengthening controls. • Keep technical documentation current and actionable for architectures, traffic flows, runbooks, and configuration standards, enabling other engineering teams to move fast while maintaining a strong security and reliability posture.