Senior Backend JavaScript Engineer @ Pragmile

7 hours ago


Warsaw, Czech Republic Pragmile Full time

What We’re Looking For:

  • Proven expertise in backend development, cloud computing, and system architecture, complemented by frontend development skills.
  • Hands-on experience with AWS services and serverless architectures.
  • A solution-driven mindset, eager to work in dynamic, fast-paced environments.
  • A team-player approach with a proactive, growth-focused outlook.
  • English Proficiency: Minimum B2 level to collaborate effectively in an international team.

Key Technologies & Requirements:

Backend Development:

  • Core Language: Proficiency in Node.js for backend development.
  • System Design: Expertise in architecting scalable, event-driven systems with a focus on performance and maintainability.
  • Cloud & DevOps: Advanced knowledge of AWS services (e.g., Lambda, DynamoDB, S3, API Gateway, CloudFormation) and serverless architectures.
  • Databases: Strong proficiency with SQL and NoSQL databases (e.g., MongoDB, Firebase).
  • CI/CD: Solid experience in CI/CD pipelines, workflow automation, and using tools like npm or yarn.
  • Nice to haveReact.js, ReduxContext API.

General Skills:

  • Strong debugging, refactoring, and clean, testable code writing.
  • Familiarity with performance optimization and API integrations.
  • Effective communication and collaboration in diverse team environments. 

    Our Work Style:
    • Backend-First Innovation: Lead initiatives in building scalable, high-performance systems, while collaborating across frontend and cloud domains.
    • Transparent Collaboration: Utilize tools like Slack and generative AI to streamline communication and teamwork.
    • Growth-Driven Culture: Embrace continuous learning and feedback to refine your skills and expand your expertise.
    • Hybrid Work Model: Split your time between the Warsaw office (3 days per week) and flexible remote work.


Are you a skilled software engineer passionate about backend technologies and cloud infrastructure? Join us as we build a cutting-edge Tech Hub in Warsaw for a global leader in online deferred payments, a rapidly growing startup transforming how people shop and pay worldwide.

Why Work with Us?

  • Innovative Technology: Shape real-world solutions by mastering backend systems, cloud platforms, and scalable architectures to redefine the future of payments. 
  • Global Reach: Your work will power millions of seamless transactions, creating exceptional shopping and payment experiences. 
  • Career Growth: We value talent and ambition, offering clear growth paths for those ready to tackle impactful challenges. 
  • Collaborative Culture: Work with exceptional engineers in an environment that prioritizes creativity, collaboration, and innovation. 

If you’re a Senior Software Engineer eager to specialize in backend technologies while leveraging full-stack expertise, this is your chance to make an impact in the fintech space. Apply today and join us in shaping the future of tech in Poland

,[] Requirements: Node.js, AWS, API, SQL, NoSQL, CI/CD Pipelines, React, Redux

  • Warsaw, Czech Republic Pragmile Full time

    What We Expect? 3-5 years of experience in backend development using Node.js.  Knowledge of AWS services (e.g., Lambda, DynamoDB, S3, API Gateway) and serverless architectures.  System design skills – experience in building scalable, event-driven applications.  Familiarity with SQL and NoSQL databases (e.g., MongoDB, Firebase).  Basic CI/CD knowledge...


  • Warsaw, Czech Republic Pragmile Full time

    What We’re Looking For: Proven experience in software engineering, with a specialization in backend or frontend development, cloud, or security. A solution-driven mindset and enthusiasm for a fast-paced, dynamic environment. A proactive, team-oriented approach with a growth-focused perspective. English Proficiency: Minimum B2 level in English to...


  • Warsaw, Czech Republic Pragmile Full time

    What We’re Looking For: 3-5 years of experience in software engineering, with a focus on backend development.  Proficiency in Java (Java 17+ preferred) and experience with the Spring Framework (Spring Boot, Spring MVC), Hibernate, or JPA.  Familiarity with microservices architecture and cloud-based systems.  Hands-on experience with relational...


  • Warsaw, Czech Republic Spyrosoft Full time

    Minimum 5 years of experience in JavaScript/TypeScript Proficiency with React.js (front-end) or Node.js (back-end), Redux (state management), Context API, Hooks CI/CD experience, experience with npm or yarn, familiarity with Webpack, Babel Experience with NoSQL databases (MongoDB, Firebase), SQL, handling databases in backend systems using...


  • Remote, Kraków, Wrocław, Warsaw, Czech Republic N-iX Full time

    8+ years of experience with Java, Spring Boot, and Hibernate. Strong knowledge of data structures, algorithms, OOP, and distributed systems. 5+ years of experience with PostgreSQL, SQL, and JPA. Expertise in REST APIs and service-oriented architecture. Strong experience with AWS services and Docker/Kubernetes. Proficiency in CI/CD processes and version...


  • Gdansk, Katowice, Krakow, Lodz, Poznan, Szczecin, Warsaw, Wroclaw, Czech Republic Deloitte Full time

    We are looking for a passionate Junior Developers to join Deloitte's Cloud Integration practice, where you will deliver state-of-the-art integration solutions for our clients. Whether you're a seasoned Integration Architect, Team Lead, Developer, or just entering the field, we have a place for you. To be successful in the interview you must know at...


  • Remote, Kraków, Warsaw, Czech Republic Adaptiq Full time

    At least 6 years of experience as a Backend Software Engineer, with a proven track record of delivering high-quality software solutions At least 5 years of experience with Node.js At least 1 years of experience with frontend development using either React, or Vue or Angular Experience with AWS various services or other cloud providers Ability to work...


  • Remote, Warsaw, Czech Republic ElevenLabs Full time

    We are pioneering voice technology with our cutting-edge research and products at ElevenLabs. Our mission is to be the first choice for AI audio solutions.About the RoleAs a Senior Software Engineer - SEO Expert, you will play a key role in driving our growth through programmatic SEO, content marketing, and other SEO strategies. You will work closely with...


  • Warsaw, Czech Republic Mindbox S.A. Full time

    Requirements:  Solid practical and theoretical knowledge of Java software development Strong experience of Spring Boot / Micronaut An understanding of Kubernetes / Docker An excellent understanding of AWS (deployment / configuration) Message-driven architectures / Kafka / event sourcing Success delivering within an agile Experience working on a highly...


  • Remote, Warsaw, Czech Republic VPTeam Full time

    VPTeam is seeking a skilled Senior Full Stack Engineer to join our team. This role involves designing and implementing new features for the core processing system, embedding enterprise-focused features across the platform, writing and maintaining microservices, ensuring seamless integration of features, and collaborating with cross-functional teams to...


  • Remote, Warsaw, Krakow, Czech Republic Synerise Full time

    What will make us a perfect match? Programming skills in Scala. Solid understanding of Kafka, Kubernetes. Experience with (at least one): Akka / ZIO / Cats. Experience with SQL and NoSQL databases. Capacity to plan and scale systems to keep up with incredible growth. Excellent troubleshooting and debugging skills. A passion for building tools and automating...


  • Remote, Warsaw, Czech Republic VPTeam Full time

    Requirements: Bachelor's degree in Computer Science or related field (or equivalent professional experience). 5+ years of experience as a software engineer. 3+ years of experience with React and JavaScript. Proven expertise in Node.js, MongoDB, and AWS. Experience with workflow systems like Cadence or Temporal is a significant advantage. Strong...


  • Remote, Kraków, Wrocław, Warsaw, Czech Republic N-iX Full time

    Company OverviewN-iX is a software development service company that helps businesses across the globe develop successful software products. Founded in 2002, N-iX has expanded its presence to nine countries and today serves as a strong community of professionals and a reliable partner for global industry leaders.Job DescriptionWe are seeking an experienced...


  • Remote, Warsaw, Czech Republic Lingaro Full time

    Lingaro is a certified Great Place to Work, offering a unique work environment where you can choose between working remotely or in the office. Our company values diversity, inclusivity, and employee growth.Company OverviewWe are a stable employer with over 15 years of experience and more than 1500 talents worldwide. Our 'Office as an Option' model provides...


  • Warsaw, Czech Republic monday.com sp. z o.o. Full time

    Strong technical skills and a passion for developing features end-to-end (client and server). Experience building web applications and/or distributed systems from scratch. Understanding of product and a passion for building software that provides a great experience. Strive for excellence, biased for action and collaboration with team members. Team player,...


  • Remote, Warsaw, Kraków, Wrocław, Gdańsk, Czech Republic RemoDevs Full time

    🔹 4+ years of experience with Python🔹 Proven expertise in Databricks and data pipeline development🔹 Strong skills in SQL for data processing and transformation🔹 Proficiency with cloud platforms (preferably Azure)🔹 Fluent English communication skills Senior Data Engineer Are you passionate about turning raw data into meaningful insights? Do you...


  • Remote, Warsaw, Wrocław, Cracow, Czech Republic N-iX Full time

    Bachelor’s degree in Computer Science, IT, or a related field (or relevant experience). 5+ years of experience in the Microsoft development stack (C#/.NET, SQL Server). Strong understanding of ASP.NET, microservices architecture, and SOLID principles. Experience with CI/CD pipelines, Git, and cloud platforms (AWS, Azure). Knowledge of ReactJS, Blazor,...


  • Remote, Warsaw, Wrocław, Białystok, Kraków, Gdańsk, Czech Republic Addepto Full time

    What you’ll need to succeed in this role: At least 5 years of experience as a full stack developer with C# (we expect that the candidate has worked approximately 60% on the backend and 40% on the frontend in their previous roles). Advanced knowledge of C# and .NET 8+. Experience with asynchronous programming and dependency injection in...


  • Remote, Warsaw, Czech Republic Lingaro Full time

    Proven experience (5+ years) as a Backend Developer with a focus on Python. Proficiency in frameworks such as Django, FastAPI or Flask. In-depth knowledge of Azure (preferred) or GCP cloud platforms. Strong understanding of Kubernetes and containerization best practices. Experience with relational databases (e.g., PostgreSQL, MySQL) and query...


  • Warsaw, Czech Republic Box Inc. Full time

    Who you are:  Extensive experience (7+ years) in designing, implementing, and maintaining full-stack solutions. Strong knowledge of algorithms, data structures, software design principles, and object-oriented programming. Adaptability is at the core of our expectations. Our current main tech stack is TypeScript, React.js, Java 17, and Spring Boot, but we...