June 9, 2026

Principal Engineer

Senior • Remote

Warsaw, Poland

 The Principal Engineer is experienced software engineer specialising in MERN tech stack to build scalable, high-performance web solutions.

This individual will play a crucial role in the development process, accelerating delivery of full-stack web applications.

The Principal Engineer will act as the highest skilled Individual Contributor and will cooperate closely with Media, Content and Commerce team supporting Marketing . The team operates within Scrum framework to deliver value to Consumer Healthcare business. 

The team supports variety of applications composed of different technologies like React.JS, Node.JS, Vue.JS, Python, Databricks, Kubernetes, PowerApps, Azure Synapse Analytics, database technologies like PostgreSQL, MongoDB, Microsoft SQL.

📍 Remote from Poland 

The Principal engineer will champion best practices in software engineering including micro-services architecture, API-First and event based integration, Cloud Native/SaaS hosting and Headless CMS. A Good candidate should have knowledge of:

 

  • The Principal Engineer is the most senior Individual Contributor (IC) and excels through in depth technical knowledge of specific technical domains.

  • Contributes to their team or domain meeting goals through successfully leading and consistently delivering on projects of highly ambiguous scope, high complexity and critical business impact.

  • Can be deployed to highest priority business problems or fires, can quickly resolve them and help the business understand how to avoid them in future.

  • Proactively contributes to the betterment of other engineers in the company, through sponsoring, mentoring and providing constructive, candid feedback.

  • Proactively gives technical and strategic feedback on projects relevant to their expertise that leads to better outcomes.

  • Directly impacts the trajectory of the company both through working on the most impactful problems and being able to bring about change with effective momentum.

  • Links technical contribution back to business impact for their team or area and helps others to buy into this.

  • Consistently leads their team to good outcomes from a technical perspective, ensuring appropriate engineering decisions are made to factor in technical debt, systems design, stability/reliability, monitoring/observability and business need.

  • Is regularly recognized in their team and collective for highly impactful technical contributions of the highest quality.

  • Proposes changes to technical scope to handle changing business priorities or urgency.

  • Leads the refactoring of complex systems or problems when it is warranted. Can make pragmatic trade-offs between perfection and technical debt which aligns with our priorities as a business, including how to repay debt.

  • Has the skills to competently work on complex and unknown problems under pressure (e.g. debugging complex production issues at speed, or leading the resolution of critical or major incidents)

  • Can demonstrate their technical skills outside of code, and leads the design process for complex technical problems in their team or collective.

  • Contributes to architecture forums, takes part in initiatives to improve the practices of the engineering discipline.

  • Can clearly and confidently articulate risk of technical problems to non technical stakeholders (e.g legal, compliance)

  • Communicates effectively when representing Engineering to external stakeholders (e.g auditors, regulators, third-parties, or industry groups) when appropriate

  • Actively and regularly offers well considered contributions to the roadmap of their team or business area.

  • Fosters effective collaboration between product, engineering and architecture.

  • Demonstrates product-awareness. Offers valuable contributions to quarterly planning rituals, and works with the PM or team lead on setting the vision for a team.

  • Ensures their team is focusing on work that will drive forward quarterly goals or business objectives, whilst reducing the operational impact for engineers and Ops.

  • Repeatedly consulted for advice by engineers from different teams or collectives.

  • Proactively stays up to date with technology trends in their area, and uses this knowledge to contribute thoughts on their team’s strategy.

  • Works to enable groups of others to improve coding standards and awareness of best practices around non-functional requirements (e.g. performance, testability, scale, security)

  • Tackles problems before they can do harm, knowing which levers to pull to make change happen.

 

Key Roles & Responsibilities

  • Leads the refactoring of complex systems or problems when it is warranted. Can make pragmatic trade-offs between perfection and technical debt which aligns with our priorities as a business, including how to repay debt.

  • Has the skills to competently work on complex and unknown problems under pressure (e.g. debugging complex production issues at speed, or leading the resolution of critical or major incidents)

  • Can demonstrate their technical skills outside of coding, and leads the design process for complex technical problems in their team or collective.

  • Articulates risk of technical problems to non technical stakeholders (e.g legal, compliance) and  Communicates effectively when representing Engineering to external stakeholders (e.g auditors, regulators, third-parties, or industry groups) when appropriate

  • Actively and regularly offers well considered contributions to the roadmap of their team or business area.

  • Fosters effective collaboration between product, engineering and architecture.

 

Qualifications and skills

  • Strong experience with Azure Cloud and Azure services

  • Technical expertise in one or more technology domains and programming languages (e.g. Java, Javascript), database technologies (e.g. MongoDB, PostgreSQL, MySQL) and release & configuration management tools.

  • Technical expertise in JavaScript frameworks (Remix.js. Node.js, React.js)

  • Understanding of  headless CMS architecture, i.e. Contenful

  • Experience with scripting languages (preferably Python) in cloud environments with a focus on IaaS, PaaS

  • Comprehensive understanding of modern DevOps platform technologies (e.g. GitHub Actions) incl. infrastructure-as-code (e.g. Terraform) and containers (e.g. Kubernetes, AKS)

  • Knowledge of Security Practices for DevSecOps

  • Knowledge of Azure Data (DataBricks , Synapse Studio) , AI (Open AI , AI Search) tools

  • Experience with code quality and code security tools (i.e.: SonarQube, Github Advanced Suite).

  • Experience with observability tools e.g. Datadog

  • Experience with Atlassian suite

  • Extensive experience with agile methodologies

  • Experience working in a cloud native environment (Azure desirable)

  • Working knowledge of Scrum based Agile development

 

Job Requirements and Qualifications:

  • Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field – or equivalent practical experience.

  • Around 10 years of experience in software engineering, with experience in leadership role (e.g. Senior/Principal Software Engineer, Team Lead).

  • Proven experience with architecture and solution design in software engineering.

  • Deep domain & Engineering management expertise and experience.

  • Demonstrable tech leadership.

  • Experience working with geographically distributed teams or vendor partners.

  • Exposure in managing web hosting platforms/teams.

Benefits

  • Stable long-term cooperation with opportunity for extension

  • Opportunity to work with modern technologies in an international environment

  • Professional growth and continuous development opportunities

  • Participation in challenging and impactful projects

📩 If you’re interested and meet the qualifications, please send your CV to Alina Pchelnikova at alina.pchelnikova@dcvtechnologies.co.uk

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Hybrid

Katowice, SL, Poland

🏢 Summary: Lead Software Engineer role focused on building scalable, secure, and high-performance full-stack applications for enterprise and public sector clients. The position involves designing modern frontend and backend solutions, developing APIs and microservices, and supporting cloud-based CI/CD environments. The role also includes technical leadership and mentoring while ensuring best practices in security and performance. 🗂️ Requirements: Strong experience with JavaScript, Strong experience with TypeScript, Backend development experience with Node.js or Python, Experience with modern frontend frameworks, Knowledge of APIs and microservices, Experience with cloud platforms (AWS, Azure, or GCP), Familiarity with CI/CD pipelines, Experience with testing frameworks, Understanding of security best practices, Understanding of performance optimization best practices, Experience mentoring developers or leading technical initiatives 📃 Skills: JavaScript, TypeScript, Node.js, Python, React, Vue, Angular, REST, GraphQL, Microservices, APIs, AWS, Azure, GCP, CICD, Testing, Security, Performance 🏢 Description: International company delivering advanced internet connectivity solutions is looking for a Lead Software Engineer to help build scalable, secure, and high-performance digital products used by enterprise and public sector clients. Your responsibilities 🚀 Designing and developing modern full-stack applications Building scalable front-end solutions (React, Vue, Angular) Developing backend services and APIs (REST / GraphQL) Creating reusable components and microservices Supporting CI/CD, testing, monitoring, and automation Collaborating with Product and Design teams Mentoring engineers and supporting technical decisions Must have ✅ Strong experience with JavaScript / TypeScript Backend development experience (Node.js preferred or Python) Experience with modern frontend frameworks Knowledge of APIs, microservices, and cloud platforms (AWS, Azure, GCP) Familiarity with CI/CD and testing frameworks Understanding of security and performance best practices Experience mentoring developers or leading technical initiatives Nice to have ⭐ Experience with AI-driven tools Knowledge of design systems or distributed systems Advanced security knowledge

Technology

Britenet

React/Node.js Tech Lead

Senior

Remote

Warsaw, Poland

120 - 130 PLN

🏢 Summary: Senior Tech Lead role focused on leading engineering teams and defining technical strategy for digital transformation and automation projects. The position involves designing scalable cloud-based solutions using Node.js and React, overseeing architecture, code quality, and CI/CD processes. The role combines hands-on technical leadership with collaboration across international stakeholders. 🗂️ Requirements: Minimum 10 years experience in designing and delivering IT solutions, At least 3 years experience in Tech Lead role, Strong proficiency in Node.js and React, Practical experience with Azure or GCP, Experience with Kubernetes and Terraform, Experience implementing CI/CD pipelines, Experience managing distributed international teams, Higher technical education in Computer Science, Engineering, or related field, Familiarity with ITIL v4, DevOps, Agile, Kanban, Fluent English B2/C1 level 📃 Skills: Node.js, React, Azure, GCP, Kubernetes, Terraform, CI/CD, ITIL, DevOps, Agile, Kanban, JavaScript, Cloud 🏢 Description: We are seeking an experienced Tech Lead to play a pivotal role in leading and growing our engineering teams. The ideal candidate will combine deep technological expertise—especially in node.js/react and cloud solutions—with strong leadership and communication skills. You will be responsible for technical strategy, architecture, code quality, and mentoring, while collaborating with business stakeholders and supporting international projects. Our expectations - Minimum 10 years of experience in designing and delivering IT solutions, including at least 3 years in a leadership role (Tech Lead). - Strong proficiency in node.js/react - Practical experience with cloud platforms (Azure, GCP), Kubernetes, Terraform, CI/CD. - Proven ability to manage distributed and international teams, conduct code reviews, and mentor engineers. - Experience working in international environments and communicating with technical and business stakeholders. - Higher technical education (Computer Science, Engineering, Project Management). - Familiarity with ITIL v4, DevOps, Agile, Kanban methodologies. - Fluent English (B2/C1 level). Soft skills - Excellent communication and presentation skills. - Ability to work under pressure in a dynamic environment. - Proactive, goal-oriented, and problem-solving mindset. - Relationship-building skills with technical and business teams. Key tasks - Lead and mentor technical teams (Frontend, Backend, DevOps, QA) in digital transformation and automation projects. - Design and oversee scalable, secure solutions based on node.js/react and cloud components (Azure, Kubernetes, Terraform). - Implement and maintain CI/CD processes, test automation, monitoring, and deployment pipelines. - Conduct code reviews and ensure adherence to best practices in architecture and security. - Translate business requirements into concrete technical solutions and support pre-sales activities. - Coordinate knowledge transfer and onboarding for development teams. - Monitor project progress, report KPIs, and analyze risks. - Collaborate with international teams and stakeholders (Europe, USA, APAC). - Maintain project documentation and lead status meetings and retrospectives. - Foster a culture of innovation, continuous improvement, and high performance.

Technology

emagine Polska

Senior Frontend Engineer

Senior

On-site

Copenhagen, Denmark

🏢 Summary: Senior Frontend Engineer role focused on driving architectural direction and building scalable, high-quality frontend solutions using React and TypeScript. The position involves designing core features, shaping best practices, improving CI/CD and observability, and mentoring engineers. The engineer will collaborate cross-functionally to deliver performant, maintainable, and accessible user experiences. 🗂️ Requirements: Extensive experience with large-scale frontend applications, Strong hands-on experience with React, Strong hands-on experience with TypeScript, Deep understanding of web architecture and component design, Experience with performance optimization and responsive UI patterns, Solid knowledge of build tools, Experience with version control systems, Experience with CI/CD pipelines, Ability to design scalable and maintainable frontend solutions, Experience contributing to testing and deployment processes 📃 Skills: React, ReactNative, TypeScript, JavaScript, CI/CD, Git, HTML, CSS, Web, Serverless, Cloud 🏢 Description: Senior Frontend Engineer We’re looking for a seasoned engineer who combines deep hands-on skills with the ability to guide architectural direction, influence technical strategy, and mentor others. About the Role Your work will directly shape how thousands of businesses worldwide interact with the clients solutions — improving user experiences, driving customer satisfaction, and helping companies save valuable time. As part of this role, you will be making technical decisions, mentor colleagues, and contribute to setting best practices that strengthen frontend engineering across the company. You’ll collaborate closely with product managers, UX designers, and backend engineers to turn ideas into well-engineered solutions — balancing product velocity with long-term maintainability. Key Responsibilities Drive architectural and technical direction for frontend solutions across product suite. Design and implement core features and shared components using React/React Native, and TypeScript. Evaluate and introduce new technologies, patterns, and tools that improve scalability, maintainability, and performance. Contribute to the design system and ensure consistent, accessible, and performant user experiences. Work closely with other engineers to review code, share knowledge, and improve development practices. Act as a technical mentor — helping others grow through feedback, guidance, and collaboration. Ensure strong build, deployment, and testing processes that support rapid, reliable delivery. Contribute, or lead, broader engineering initiatives such as CI/CD improvements, observability, and cross-product consistency. Key Requirements Extensive experience in building and maintaining large-scale frontend applications. Deep understanding of web architecture, component design, performance optimization, and responsive UI patterns. Strong hands-on experience with React and TypeScript. Solid knowledge of build tools, version control, and CI/CD pipelines. A pragmatic mindset — able to balance innovation with delivery. Excellent collaboration and communication skills. Passion for technical craftsmanship and for helping others grow through mentorship and example. Nice to Have Experience in designing intuitive user interfaces. Familiarity with cloud services and serverless architectures. Knowledge of accessibility standards in web development. Location: København Allocation: Full-time. Start date: ASAP End date: 3-6 months