Software Engineer

🏢 Summary: Full Stack Software Engineer role focused on building and operating scalable software solutions for manufacturing systems. The position involves designing, developing, integrating, and supporting secure, high-quality applications using modern standards and cloud-based infrastructure. The engineer contributes across the full lifecycle, from system design to production support, within a DevOps and SRE-oriented environment. 🗂️ Requirements: Bachelor’s degree in Computer Science, Software Engineering, IT or related field, 3+ years of experience as a Software Engineer, Experience with React 18+, Python, NodeJS, Understanding of JavaScript frameworks and rendering patterns, Experience with REST or GraphQL APIs, Knowledge of authentication and authorization security practices, Experience with microservices or serverless architecture, Experience managing customer-facing and multi-region APIs, Experience maintaining data pipelines, Experience with AWS cloud services, Experience with Docker and containerized environments, Experience with Infrastructure as Code, Experience managing CI/CD workflows, Experience with monitoring and observability tools, Understanding of SQL and database management, Experience with relational or NoSQL databases, Experience with automated testing frameworks, Knowledge of Agile or Scrum methodologies, Proficiency with Git version control 📃 Skills: React, Python, NodeJS, JavaScript, REST, GraphQL, AWS, Docker, Kubernetes, CI/CD, Git, SQL, NoSQL, Microservices, Serverless, IaC, GitHub, Monitoring, Agile, Scrum 🏢 Description: At Bayer we’re visionaries, driven to solve the world’s toughest challenges and striving for a world where ,Health for all, Hunger for none’ is no longer a dream, but a real possibility. We’re doing it with energy, curiosity and sheer dedication, always learning from unique perspectives of those around us, expanding our thinking, growing our capabilities and redefining ‘impossible’. There are so many reasons to join us. If you’re hungry to build a varied and meaningful career in a community of brilliant and diverse minds to make a real difference, there’s only one choice. We are looking for a Full Stack Software Engineer in Manufacturing Enablement Team! A Software Engineer delivers software components that form part of a product. Individuals in this role will: Develop software to meet user needs, Follow best practice guidelines and help to improve those guidelines, Write clean, secure, and well-tested code, Coach and mentor more junior colleagues, Operate the services they build and identify issues in production. YOUR TASKS AND RESPONSIBILITIES: Programming and Build: Collaborate with others when necessary to review user stories and code and develop implementation approaches, Use the agreed implementation approaches to design, code, test, and document programs or scripts of medium-to-high complexity, using the right standards and tools. Systems Design: Translate logical designs into physical designs, Produce detailed designs, Effectively document all work using required standards, methods, and tools, including prototyping tools where appropriate, Design systems characterized by managed levels of risk, manageable business and technical complexity, and meaningful impact, Work with well understood technology and identify appropriate patterns. Systems Integration: Build and test simple interfaces between systems, Work on more complex integration as part of a wider team. Modern Standards Approach: Competently apply a modern standards approach and guide others to do so. Information Security: Maintain a strong understanding of information security, Design solutions and services with security controls embedded, specifically engineered with mitigation of security threats as a core feature. Prototyping: Approach prototyping as a team activity, actively soliciting prototypes and testing with others, Establish design patterns and iterate them, Use a variety of prototyping methods and choose the most appropriate. Service Support: Help fix faults following agreed procedures, Carry out maintenance tasks on infrastructure. User Focus: Collaborate with user researchers and represent users internally, Explain the difference between user needs and the desires of the user, Champion user research to focus on all users, Prioritize and define approaches to understand the user story, guiding others in doing so, Offer recommendations on the best tools and methods to use. Availability and Capacity Management: Manage service components to ensure they meet business needs and performance targets. WHO YOU ARE: Required: Bachelor’s degree in Computer Science, Software Engineering, Information Technology or a related field. 3+ years experience as a software engineer: React 18+/ Python(required)/ NodeJS, Understanding of JS Frameworks and Rendering Patterns, Component / Visual Testing Experience, REST / GraphQL Experience, Security Best Practices (Authentication v Authorization), Serverless or Microservice Experience, Managed customer facing and multi-region APIs, Maintained Data Pipeline. DevOps / Infrastructure: AWS Experience, Containerized Environment (Docker), IaC Experience, Managed CI/CD workflows (GitHub Actions), Built scalable and global infrastructure, Created tooling and automation for developer experience. SRE Experience (Monitoring, Security, Reliability, Alerting): Worked with monitoring and observability tools. Strong understanding of software development lifecycle and software development methodologies (e.g., Agile, Scrum), Proficiency in software design and architecture, Experience with version control systems like Git, Ability to write clean, maintainable, and efficient code, Familiarity with integrated development environments (IDEs) like Visual Studio, IntelliJ Idea or Eclipse, Knowledge of software development tools and practices, including continuous integration and continuous deployment (CI/CD), Understanding of database management and SQL, Experience with relational and/or NoSQL databases, Experience with microservices architecture and RESTful API design, Experience with automated testing frameworks and tools, Knowledge of cloud platforms (AWS, Azure, Google Cloud), Excellent analytical and problem-solving skills, Ability to work collaboratively in a team environment. Preferred: Experience with containerization and orchestrations tools (Docker, Kubernetes), Expertise in a specific area such as machine learning, cybersecurity, or mobile development, Understanding of DevOps practices and tools, Ability to lead and mentor junior developers. You feel you do not meet all criteria we are looking for? That doesn’t mean you aren’t the right fit for the role. Apply with confidence, we value potential over perfection! WHAT DO WE OFFER: A flexible, hybrid work model Great workplace in a new modern office in Warsaw Career development, 360° Feedback & Mentoring programme Wide access to professional development tools, trainings, & conferences Company Bonus & Reward Structure Increased tax-deductible costs for authors of copyrighted works VIP Medical Care Package (including Dental & Mental health) Holiday allowance (“Wczasy pod gruszą”) Life & Travel Insurance Pension plan Co-financed sport card - FitProfit Meals Subsidy in Office Budget for Home Office Setup & Maintenance Access to Company Game Room equipped with table tennis, soccer table, Sony PlayStation 5 and Xbox Series X consoles setup with premium game passes, and massage chairs Tailored-made support in relocation to Warsaw when needed Please send your CV in English WORK LOCATION: WARSAW AL. JEROZOLIMSKIE 158 YOUR APPLICATION: Bayer welcomes applications from all individuals, regardless of race, national origin, gender, age, physical characteristics, social origin, disability, union membership, religion, family status, pregnancy, sexual orientation, gender identity, gender expression or any unlawful criterion under applicable law. We are committed to treating all applicants fairly and avoiding discrimination. Bayer is committed to providing access and reasonable accommodations in its application process for individuals with disabilities and encourages applicants with disabilities to request any needed accommodation(s) using the contact information below. Bayer offers the possibility of working in a hybrid model. We know how important work-life balance is, so our employees can work from home, from the office or combine both work environments. The possibilities of using the hybrid model are each time discussed with the manager.Bayer respects and applies the Whistleblower Act in Poland.

🏢 Summary: Senior Fullstack Developer role focused on building sustainable crop science solutions within a global healthcare and agriculture environment. The position involves designing and delivering business-critical, identity-related systems using modern JavaScript technologies in an agile, product-oriented team. Hybrid work model in Warsaw with strong emphasis on cloud architecture, scalability, and technical leadership. 🗂️ Requirements: 5+ years of software development experience, Strong knowledge of JavaScript ecosystem, Commercial experience with Node.js, Proficiency in TypeScript, Strong experience with React, Experience with AWS services (DynamoDB, Lambda, Step Functions), Experience designing technical architecture, Experience working in agile teams, Fluent English communication skills, Legal right to work in Europe 📃 Skills: JavaScript, Node.js, TypeScript, React, AWS, DynamoDB, Lambda, StepFunctions, APIs, Cloud, Architecture, Agile 🏢 Description: Ignite innovation in environmental care — shape sustainable solutions through cutting-edge software engineering. Warsaw-based opportunity with a hybrid work model (once every two weeks in the office). As a Senior Fullstack Developer , you will be working for our client, a global leader in healthcare and agriculture. You will contribute to solving major global challenges by developing innovative crop science solutions that promote sustainability, resilience, and community well-being. This role offers a platform for impactful work and career growth in a dynamic, global environment. Your main responsibilities: Develop and support business-critical solutions within an agile, product-oriented team. Solve organization-wide challenges related to identity and account management. Design and document technical architecture and software solutions across multiple teams. Ensure consistency, quality, and performance of all developed solutions. Evaluate and recommend new technologies to enhance system efficiency and scalability. Build and maintain relationships with key stakeholders and partner organizations. Mentor junior engineers, fostering technical growth and best practices. Continuously enhance your technical skills in a fast-paced environment. You're ideal for this role if you have: 5+ years of experience in software development or engineering. Strong problem-solving skills, proactive attitude, and collaborative mindset. Deep knowledge of JavaScript, including runtimes, APIs, and ecosystem. Extensive experience with backend development using Node.js. Proficiency in TypeScript and writing clean, maintainable code. Strong front-end skills in React, build tools, and performance optimization. Cloud expertise with AWS services, including DynamoDB, Lambda, and Step Functions. Product-oriented mindset, understanding business domains to suggest pragmatic solutions. Excellent English communication skills and experience working in an agile, global team. Willingness to learn, develop, and innovate in a fast-paced environment. It is a strong plus if you have: Knowledge of Medusa.js. Experience with SAP or Salesforce integrations. Language required for the role: Communicative English. Eligibility to work in: Only candidates with an existing legal right to work in Europe will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Backend Software Engineer role focused on building and extending an enterprise AI assistant platform using FastAPI and LLM integrations. The position involves designing async APIs, orchestrating AI agent workflows, managing document processing pipelines, and optimizing databases and background jobs. The role also covers observability, testing, and enforcing security best practices in a production environment. 🗂️ Requirements: 3+ years of experience with Python in production backend systems, Strong experience with FastAPI (async/await, dependency injection, middleware), Experience with SQLAlchemy or SQLModel and PostgreSQL, Experience with Redis for caching and task queues, Experience integrating LLMs via API (e.g., OpenAI SDK), Experience with pytest for automated testing, Experience with Docker for development and deployment, Understanding of async Python (asyncio, concurrent session management), Experience working with Git and PR-based workflows 📃 Skills: Python, FastAPI, SQLAlchemy, SQLModel, PostgreSQL, Redis, OpenAI, pytest, Docker, asyncio, LangChain, LangGraph, RQ, pgvector, Qdrant, OpenTelemetry, Prometheus, Grafana, OWASP, Git 🏢 Description: For Digital Hub Warsaw, we are looking for: Software Engineer (Backend) You’ll build and extend the backend of myGenAssist, an enterprise AI assistant platform. The backend is a FastAPI application that orchestrates LLM interactions, manages agent workflows with LangChain/LangGraph, handles document processing pipelines, and exposes tools via MCP (Model Context Protocol). Key Tasks & Responsibilities: Design and implement async APIs using FastAPI, following our patterns for session management, API versioning, and domain-driven structure. Build and evolve AI agent workflows using LangChain and LangGraph — tool integration, state persistence, multi-step reasoning. Design and optimize database schemas with SQLModel/SQLAlchemy and PostgreSQL, including migrations and vector search (pgvector, Qdrant). Build background job pipelines with RQ (Redis Queue) for document processing, knowledge base indexing, and long-running tasks. Implement observability using OpenTelemetry, Langfuse, Prometheus, and Grafana. Write tests using pytest with parallel execution, covering unit, integration, and RAG evaluation. Enforce code quality through reviews and adherence to security best practices (OWASP). Qualifications & Competencies (education, skills, experience): 3+ years with Python in production backend systems Strong FastAPI experience (async/await, dependency injection, middleware) SQLAlchemy or SQLModel with PostgreSQL Redis for caching and task queues Experience integrating LLMs via API (OpenAI SDK or similar) Testing with pytest Docker for development and deployment Understanding of async Python (asyncio, concurrent session management) Git and PR-based workflow Nice to Have LangChain / LangGraph for agent orchestration Vector databases (Qdrant, pgvector) and RAG patterns MCP (Model Context Protocol) Document processing pipelines (Docling, Unstructured) OpenTelemetry and distributed tracing Kubernetes basics (we run on EKS) AWS services (S3, Secrets Manager) OAuth2/JWT authentication Agile/Scrum experience What do We offer: A flexible, remote-hybrid work model Great workplace in a new modern office in Warsaw Career development, 360° Feedback & Mentoring programme Wide access to professional development tools, trainings, & conferences Company Bonus & Reward Structure VIP Medical Care Package (including Dental & Mental health) Holiday allowance (“Wczasy pod gruszą”) Life & Travel Insurance Pension plan Co-financed sport card - FitProfit Meals Subsidy in Office Budget for Home Office Setup & Maintenance Access to Company Game Room equipped with table tennis, soccer table, Sony PlayStation 5 and Xbox Series X consoles setup with premium game passes, and massage chairs Tailored-made support in relocation to Warsaw when needed Please send your CV in English WORK LOCATION: WARSAW AL. JEROZOLIMSKIE 158

🏢 Summary: Senior Staff Geospatial Software Engineer responsible for building planet-scale geospatial data platforms and distributed analytics systems to support scientific and operational data analysis in sustainable agriculture. The role focuses on designing, implementing, and leading enterprise-grade geospatial and cloud-native solutions using modern software engineering practices. It includes technical leadership, mentorship, and end-to-end ownership of large-scale geospatial initiatives. 🗂️ Requirements: 7+ years of software engineering experience, Proven experience leading and mentoring software development teams, Experience delivering and maintaining major production releases in Go or Python, Strong knowledge of algorithms, data structures, and geospatial data models, Experience with observability practices (logging, metrics, tracing, monitoring), Experience with containerization using Docker, Experience working with Kubernetes clusters, Strong understanding of software architecture and design, Experience with CI/CD pipelines, Advanced knowledge of SQL and database management, Experience with microservices architecture and RESTful APIs, Experience with cloud platforms (AWS, Azure, or Google Cloud), Experience with distributed data warehousing or distributed compute systems, Experience with version control systems (Git) 📃 Skills: Go, Python, Docker, Kubernetes, AWS, Azure, GCP, SQL, Git, Spark, Sedona, BigQuery, Snowflake, DuckDB, PostGIS, GDAL, GeoServer, GeoTools, PROJ, QGIS, OpenLayers, Leaflet, H3, GeoParquet, GeoArrow, GeoPackage, CI/CD, REST 🏢 Description: Senior Staff Geospatial Software Engineer Build planet-scale geospatial data platforms that accelerate sustainable agriculture. At Bayer Crop Science our mission is to develop agriculture solutions for a sustainable future that help meet the challenges of feeding a global population projected to grow to over 9.6 billion by 2050. This includes research and development of innovative modern agriculture solutions based on biotechnology and plant breeding, developing science based products including seeds and crop protection products, and modern analytics that help identify the best crop system for each acre. To accomplish this mission we are capturing petabytes of data in our operational systems including everything from genome sequencing data, to manufacturing, supply chain and finance systems. This includes a tremendous volume of scientific data from field trials that requires complex analysis in order to extract meaningful information, and our mission is to understand that data and create software that will help make decisions at scales that has never been possible before. YOUR TASKS AND RESPONSIBILITIES: Play a key senior role on a geospatial data engineering team, building distributed analytics capabilities and enabling enterprise-wide access to scientific and operational datasets. Apply strong software craftsmanship with your knowledge of algorithms, data structures, and geospatial data models Partner with other top-level talent in data engineering, software development, and data science to tackle complex, novel problems and deliver solutions with real-world impact on global food systems. Mentor and guide other data engineers in your areas of expertise with a focus on geographic information science and systems. Evaluate, implement, and advocate Foss4G technologies, finding the best fit for each use case and integrating them into production-ready solutions. Lead technical initiatives end-to-end, communicate your technical vision and strategy to the larger organization. Drive impact across enterprise projects spanning multiple areas of the business. Strength of ideas outweighs position in the organization Who you are: 7+ experience as a software engineer Experience in design and implementation of Foss4G solutions, particularly leveraging GeoServer, PostGIS, and QGIS with an emphasis on vector data models Proven experience in leading, mentoring and managing software development teams A track record of shipping and maintaining multiple major product releases written in Go or Python Extensive experience with observability practices for running and deploying software, including logging, metrics, tracing, and monitoring production systems to diagnose issues and ensure reliability Experience with creating and maintaining containerized application deployments with a platform like Docker Familiarity with developing in, deploying to, and working with Kubernetes cluster infrastructure Expert understanding of software development lifecycle and software development methodologies (e.g., Agile, Scrum) Strong proficiency in software design and architecture Extensive experience with version control systems like Git Ability to write and oversee the development of clean, maintainable, and efficient code Proficiency with integrated development environments (IDEs) like Visual Studio, IntelliJ Idea or Eclipse Strong knowledge of software development tools and practices, including continuous integration and continuous deployment (CI/CD) Advanced understanding of database management and SQL Extensive experience with microservices architecture and RESTful API design In-depth knowledge of cloud platforms (AWS, Azure, Google Cloud) Preferred Experience with geoarrow, geoparquet, and geopackage data formats Experience with emerging geospatial database management systems such as DuckDB Spatial and Sedona DB Experience working with distributed geospatial data warehousing (e.g. BigQuery, Snowflake) and compute (e.g. Spark, Sedona) Experience implementing h3 geospatial indexing Contributions to or implementation of these OSGEO projects: GDAL/OGR, GeoServer, GeoTools, PostGIS, PROJ, QGIS, OpenLayers, Leaflet What do We offer: A flexible, remote-hybrid work model Great workplace in a new modern office in Warsaw Career development, 360° Feedback & Mentoring programme Wide access to professional development tools, trainings, & conferences Company Bonus & Reward Structure VIP Medical Care Package (including Dental & Mental health) Holiday allowance (“Wczasy pod gruszą”) Life & Travel Insurance Pension plan Co-financed sport card - FitProfit Meals Subsidy in Office Budget for Home Office Setup & Maintenance Access to Company Game Room equipped with table tennis, soccer table, Sony PlayStation 5 and Xbox Series X consoles setup with premium game passes, and massage chairs Tailored-made support in relocation to Warsaw when needed Please send your CV in English

🏢 Summary: Full-time hybrid Software Engineer role focused on building responsive, AI-driven web applications for enterprise platforms using modern JavaScript technologies. The position involves developing high-quality React-based interfaces, applying TDD and CI practices, and collaborating within cross-functional Agile teams. Long-term B2B contract based in Warsaw with competitive salary. 🗂️ Requirements: 6+ years experience with JavaScript, 6+ years experience with TypeScript, Strong knowledge of design patterns in JavaScript, Proficiency in React with Redux, Experience with Next.js, Understanding of functional programming concepts, Strong knowledge of asynchronous programming, Experience with Git and branch management, Experience debugging front-end applications, Experience creating and integrating custom packages, Understanding of object-oriented programming principles, Practical experience with HTML5, Practical experience with CSS3, Experience in Agile environments, Ability to develop cross-browser compatible code 📃 Skills: JavaScript, TypeScript, React, Redux, Next.js, HTML5, CSS3, Git, TDD, CI, Agile 🏢 Description: 💰 Salary: 14,500-17,000 PLN/month 🌎 Hybrid from Warsaw, Poland 🕦 Full-time position, long-term ☑️ B2B We are looking for a Software Engineer to join our client, a technology company that builds AI-powered platforms and consulting solutions for enterprise operations, with a strong focus on the private capital sector. The company has over ten years of experience working with high-growth and PE-backed businesses, combining deep domain expertise with advanced technology to drive measurable results. Requirements: 6+ years of experience working with JavaScript and TypeScript Solid understanding of design patterns and how to apply them in JavaScript development. Proficiency in a modern front-end JavaScript framework such as React.js with Redux; experience with Next.js is an advantage. Familiarity with functional programming concepts. Strong grasp of asynchronous programming and its best practices. Knowledge of Git and experience with branch management. Experience troubleshooting front-end issues and using relevant debugging tools. Familiarity with creating and integrating custom packages. Good understanding of object-oriented programming principles and their use in JavaScript. Ability to perform effectively under pressure and meet strict deadlines. Practical experience with HTML5 and CSS3. Experience working within Agile development environments and practices. Strong communication and organizational abilities. Skilled in developing cross-browser compatible code. A Bachelor’s degree in Computer Science or a related field is preferred. Key Responsibilities: Creating and building responsive user interfaces using React. Applying and maintaining test-driven development (TDD) practices along with continuous integration processes. Working closely with a cross-functional team that includes project managers, analysts, and sales representatives to deliver high-quality, interactive products within deadlines. Promoting and implementing best practices in testing, accessibility, and performance optimization. Partnering with design, backend, QA, and product teams to develop reliable, user-focused solutions.

🏢 Summary: Hybrid Software Engineer role focused on developing and maintaining a scalable Ruby on Rails platform, building APIs, and delivering secure, high-performance solutions. The position involves implementing new features, supporting integrations with external partners, and contributing to agile development processes. The engineer will also take ownership of services and support ongoing platform reliability. 🗂️ Requirements: Minimum 3 years of professional experience as a Software Engineer, Proficiency in Ruby on Rails, Experience developing and managing APIs, Familiarity with React, Knowledge of JavaScript or TypeScript, Ability to work in a hybrid environment (Warsaw-based), Advanced written and spoken English 📃 Skills: Ruby, Rails, API, React, JavaScript, TypeScript, GraphQL 🏢 Description: Our Client, an American software company is opening a new branch in Warsaw and we are looking for a Software Engineer with Ruby to join a growing team. About the Position This role focuses on enhancing and maintaining a robust platform, supporting new project initiatives, and delivering scalable solutions that improve the user experience for both industry professionals and individual clients. The ideal candidate is proactive, collaborative, and committed to delivering high-quality, scalable software. This is a hybrid role based in Warsaw, Poland. Key Responsibilities Design and implement new functionalities for a cutting-edge platform Develop and manage APIs to enable smooth integration with financial and sales partners Build secure and scalable services designed for sustained performance Support agile development practices and help ensure consistent, impactful sprint results Mentor team members and contribute to a positive engineering culture through knowledge-sharing Maintain and take responsibility for services you develop, including participating in the on-call rotation Requirements Minimum 3 years of professional experience as a Software Engineer good proficiency with Ruby on Rails Excellent communication skills and experience working in cross-functional teams Familiarity with React and component-based front-end frameworks Knowledge of JavaScript and/or TypeScript Ability to perform in a hybrid (office/remote) work environment Advanced written and spoken English (please provide your CV in English) Nice to have Experience with GraphQL

🏢 Summary: Onsite Fullstack Developer role focused on building scalable, production-ready web applications using Java Spring and Node.js on the backend and React on the frontend. The position involves developing REST APIs, integrations, and high-performance systems with relational databases, contributing to architecture and technical decisions. Work is 100% onsite in Warsaw under a B2B contract. 🗂️ Requirements: Ability to work 100% onsite in Warsaw, Commercial experience with Java, Commercial experience with Spring Boot, Commercial experience with Node.js, Experience with React, Experience with TypeScript, Knowledge of PostgreSQL, Knowledge of MySQL, Knowledge of MariaDB, Experience building production applications, Understanding of REST APIs, Understanding of backend architecture, English B2 level or higher 📃 Skills: Java, Spring, SpringBoot, Node.js, NestJS, Express, React, Next.js, TypeScript, PostgreSQL, MySQL, MariaDB, REST, Git, Docker, CI/CD 🏢 Description: 📍 Warsaw (Onsite – near Metro Plac Wilsona) 💼 B2B About Silk Software House We build modern, scalable applications with fintech-grade reliability and strong backend architecture. Our projects focus on high-performance web platforms and integrations using Java Spring and Node.js ecosystems. Your Role As a Fullstack Developer, you’ll primarily work with Java Spring and Node.js on the backend, and React on the frontend. You’ll collaborate closely with backend and frontend engineers to deliver scalable production-ready applications. Responsibilities Develop backend services using Java / Spring Boot and Node.js (NestJS / Express) Build frontend applications with React / Next.js + TypeScript Design and maintain REST APIs and integrations Work with relational databases including PostgreSQL, MySQL, and MariaDB Collaborate with designers, backend developers, and product teams Participate in architecture and technical decision-making Maintain and improve production applications Requirements Ability to work 100% onsite from our office near Metro Plac Wilsona, Warsaw Commercial experience with Java / Spring Boot, Node.js backend development Experience with React + TypeScript Good knowledge of relational databases (PostgreSQL, MySQL, MariaDB) Experience building and maintaining production applications Understanding of API integrations and backend architecture English at least B2 level Nice to have Experience with microservices architecture Cloud deployment experience CI/CD knowledge Docker and containerization experience Experience with scalable backend systems Tech Stack Area: Technologies Backend: Java Spring Boot, Node.js, NestJS, Express Frontend: React, Next.js, TypeScript Databases: PostgreSQL, MySQL, MariaDB DevOps: Docker, CI/CD Tools: Git, REST APIs Recruitment Process 1. Intro Call – Quick chat about your experience, expectations, and our projects 2. Technical Interview / Task – Backend and frontend discussion focused on Java Spring, Node.js, and React 3. Final Meeting – team fit and project discussion 4. Fast feedback after each stage within a few days. 5. Process usually takes 2–3 weeks .

🏢 Summary: Mid-level Front-end Software Engineer role focused on building scalable, high-traffic web solutions for a large e-commerce platform. The position involves delivering medium to high complexity features, translating product and UX requirements into maintainable code, and contributing to front-end architecture decisions. This is a contractor role with high ownership in a product-driven environment. 🗂️ Requirements: Minimum 10+ years of experience as a Front-end Software Engineer, Strong knowledge of HTML, Strong knowledge of CSS, Strong knowledge of JavaScript, Strong knowledge of TypeScript, Practical experience with React, Ability to develop scalable and maintainable front-end architecture, Experience ensuring code quality, performance, and accessibility, Experience working in cross-functional product teams, Ability to work independently and take technical ownership 📃 Skills: HTML, CSS, JavaScript, TypeScript, React, Accessibility, Performance, Architecture 🏢 Description: For our Client – one of the largest and most recognizable e-commerce platforms in Central Europe, serving millions of users daily and building large-scale, high-traffic digital products – we are currently looking for a Front-end Software Engineer (Mid-level) to join a product-driven environment focused on delivering high-quality, scalable web solutions. 📍 Warsaw - once per 2-3 weeks in the office only 🎯 Your Responsibilities Deliver medium to high complexity front-end features independently Translate product and UX requirements into clean, scalable, maintainable code Collaborate closely with Product Managers and UX/UI Designers Ensure high standards of code quality, performance, and accessibility Take ownership of delivered solutions in a contractor model (high autonomy expected) Contribute to team-level technical decisions and front-end architecture discussions Identify and address front-end technical debt 🔧 Required Experience & Skills Min 10 + years of experiance as a Front-end Software Engineer Solid understanding of HTML, CSS, JavaScript, and TypeScript fundamentals Practical experience with React (preferably with TypeScript) Ability to work independently and take accountability for outcomes Experience collaborating in cross-functional teams ⭐ Nice to Have Experience working on large-scale web applications Experience with cross-team front-end integrations Familiarity with design systems and component libraries Interest in scalable testing practices 🌍 What You Can Expect Long-term cooperation in a contractor model High-impact product environment with millions of end users Real ownership over features and technical solutions Modern engineering standards and strong product culture Occasional on-site workshops and team events 📍 Please note that we will contact only selected candidates. TQLO Sp. z o.o. – Employment Agency (KRAZ No. 33580)

🏢 Summary: Mid-level Front-end Software Engineer role focused on building scalable, high-quality web features for a large-scale, high-traffic e-commerce platform. The position involves translating product and UX requirements into maintainable React-based solutions while ensuring performance, accessibility, and code quality. The role offers high autonomy and ownership in a contractor model within a product-driven environment. 🗂️ Requirements: 10+ years of experience as Front-end Software Engineer, Strong knowledge of HTML, Strong knowledge of CSS, Strong knowledge of JavaScript, Strong knowledge of TypeScript, Practical experience with React, Ability to deliver medium to high complexity front-end features independently, Experience working in cross-functional teams, Ability to ensure code quality, performance and accessibility standards 📃 Skills: HTML, CSS, JavaScript, TypeScript, React, Accessibility, Performance 🏢 Description: For our Client – one of the largest and most recognizable e-commerce platforms in Central Europe, serving millions of users daily and building large-scale, high-traffic digital products – we are currently looking for a Front-end Software Engineer (Mid-level) to join a product-driven environment focused on delivering high-quality, scalable web solutions. 📍 Warsaw - once per 2-3 weeks in the office only 🎯 Your Responsibilities Deliver medium to high complexity front-end features independently Translate product and UX requirements into clean, scalable, maintainable code Collaborate closely with Product Managers and UX/UI Designers Ensure high standards of code quality, performance, and accessibility Take ownership of delivered solutions in a contractor model (high autonomy expected) Contribute to team-level technical decisions and front-end architecture discussions Identify and address front-end technical debt 🔧 Required Experience & Skills Min 10 + years of experiance as a Front-end Software Engineer Solid understanding of HTML, CSS, JavaScript, and TypeScript fundamentals Practical experience with React (preferably with TypeScript) Ability to work independently and take accountability for outcomes Experience collaborating in cross-functional teams ⭐ Nice to Have Experience working on large-scale web applications Experience with cross-team front-end integrations Familiarity with design systems and component libraries Interest in scalable testing practices 🌍 What You Can Expect Long-term cooperation in a contractor model High-impact product environment with millions of end users Real ownership over features and technical solutions Modern engineering standards and strong product culture Occasional on-site workshops and team events 📍 Please note that we will contact only selected candidates. TQLO Sp. z o.o. – Employment Agency (KRAZ No. 33580)

🏢 Summary: Offer for an experienced React FrontEnd Developer to design and build responsive, high-performance user interfaces in a hybrid model in Warsaw. The role focuses on developing modern web applications using React and related technologies, with strong emphasis on testing, accessibility, and performance optimization. The position involves close collaboration with cross-functional teams to deliver robust, user-centric digital products. 🗂️ Requirements: 6+ years of experience in JavaScript development, 6+ years of experience in TypeScript development, Commercial experience with React.js, Experience with Redux, Hands-on experience with HTML5, Hands-on experience with CSS3, Ability to write cross-browser compatible code, Understanding of object-oriented programming concepts and design patterns, Knowledge of functional programming paradigms, Understanding of asynchronous programming, Experience with TDD, Experience with continuous integration, Knowledge of Git and branch management, Experience with front-end debugging tools, Experience working in Agile methodology 📃 Skills: JavaScript, TypeScript, React, Redux, Next.js, HTML5, CSS3, Git, TDD, CI, OOP, FP 🏢 Description: React FrontEnd Developer IT · Warsaw (City Center) · Hybrid About the Client Our Client is a fast-growing, international technology company that provides innovative digital solutions for the global market. They are currently expanding and developing their R&D center in Warsaw. They are a leader in AI-powered enterprise operations, delivering digital solutions and consulting services that drive value and transform businesses. They specialize in using advanced technology to streamline operations, improve efficiency, and unlock new revenue opportunities, particularly within the private capital markets. With over a decade of experience supporting high-growth companies, they bring deep domain expertise and a proven ability to turn technology into a strategic advantage. Role Overview We are seeking a skilled React FrontEnd Developer to design and develop responsive user interfaces. In this role, you will collaborate with cross-functional teams to deliver robust, user-centric solutions while driving best practices in testing, accessibility, and performance optimization. Key Responsibilities UI Development: Designing and developing responsive user interfaces using React Testing & Integration: Implementing and maintaining TDD in applications and continuous integration. Driving best practices in testing, accessibility, and performance optimization. Collaboration: Collaborating with a cross-functional team of project managers, project analysts, and sales staff to deliver high-quality, interactive products on time. Collaborating cross-functionally with design, backend, QA, and product teams to deliver robust and user-centric solutions. Requirements & Qualifications Experience & Education: 6+ years of experience in JavaScript and TypeScript development. A Bachelor's degree in Computer Science or equivalent is preferred. Core Tech Stack: Must know a modern front-end JS framework, such as React.js + Redux; Next.js is a bonus. Hands-on experience with HTML5, CSS3. Proficiency in writing cross-browser compatible code. Programming Paradigms: Should understand OO concepts and design patterns, and their application to JavaScript development. Knows functional programming paradigms. Understands asynchronous programming paradigms and best practices. Tools & Debugging: Git and branch management knowledge. Experience debugging front-end problems and a knowledge of front-end debugging tools. Familiarity with custom package creation and integration. Soft Skills & Methodology: Experience with Agile methodologies and development practices. Good communication skills and good organization skills. Ability to work under pressure and deliver against tight deadlines. What Is Offered Compensation: Monthly compensation up to $4,800 USD . Contract Type: B2B contract via Optiveum. Work Model: Hybrid (3 days working from the office located in the center of Warsaw, 2 days working from home). Stability: Long-term cooperation with a stable, international organization.