Sigma Software Group Logo

Sigma Software Group

Senior Full Stack Developer (Node.js/ReactJS)

Posted Yesterday
Be an Early Applicant
In-Office or Remote
Hiring Remotely in Warsaw, Warszawa, Masovian
Senior level
In-Office or Remote
Hiring Remotely in Warsaw, Warszawa, Masovian
Senior level
The role involves designing, developing, and maintaining scalable applications, with a focus on back-end services using Node.js and front-end interfaces using ReactJS. Responsibilities include collaborating with teams, optimizing performance, and adhering to best practices.
The summary above was generated by AI
Company Description

We are looking for a Senior Full Stack Engineer to join one of our teams and help us build great products for our clients.

Join a globally recognized company, where innovation meets impact. With a team of seasoned professionals and a culture built on excellence, we deliver top-tier solutions that shape industries and drive meaningful results.

Become part of a company where your expertise is valued, your voice is heard, and your career is empowered!

CUSTOMER

Our client is a global content and information company shaping the future of media and data. With a century-long legacy and a strong focus on innovation, the team builds trusted experiences and tools that inform, inspire, and empower millions of people worldwide.

Job Description

  • Design, develop, and maintain scalable applications across front-end and back-end layers
  • Develop robust back-end services and APIs (REST/GraphQL) using Node.js
  • Build responsive, user-friendly UIs using ReactJS
  • Collaborate closely with data engineers and ML teams to integrate AI features and data-driven logic into the product
  • Optimize application performance, scalability, and reliability in a cloud environment
  • Implement best practices for security, CI/CD, testing, and code quality
  • Work with product and design teams to translate business requirements into technical solutions
  • Take ownership of features from ideation to deployment and monitoring in production
  • Stay up to date with emerging technologies and contribute to technical decision-making and innovation within the team

Qualifications

  • 5+ years of professional experience with JavaScript, including modern frameworks and tools
  • Expert proficiency in Node.js for scalable back-end services and APIs
  • Expertise in ReactJS for modern, responsive front-end interfaces
  • Experience designing and implementing Data APIs for efficient workflows
  • Familiarity with VectorDB or similar vector databases for AI/ML applications
  • Hands-on experience with AWS or GCP, including deployment and management
  • Strong knowledge of RESTful APIs, microservices, and database systems (SQL/NoSQL)
  • Upper-Intermediate level of spoken and written English

WILL BE A PLUS

  • Experience with Model Context Protocol (MCP) for AI model interactions
  • Familiarity with workflow automation tools such as Langflow or n8n
  • Knowledge of DevOps practices, CI/CD pipelines, or containerization (Docker, Kubernetes)

Additional Information

PERSONAL PROFILE

  • Strong problem-solving skills
  • Attention to detail
  • Ability to work independently
  • Excellent communication and collaboration skills

Top Skills

AWS
Docker
GCP
GraphQL
JavaScript
Kubernetes
Node.js
NoSQL
React
Rest
SQL

Similar Jobs

11 Minutes Ago
Remote or Hybrid
Poland
Senior level
Senior level
Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
As the Regional Sales Director, you'll lead sales teams in the CEE region, driving strategy, developing relationships, and exceeding sales quotas while fostering a positive work environment.
Top Skills: Cybersecurity Technologies
3 Hours Ago
Remote or Hybrid
Poland
Entry level
Entry level
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
As a Java Developer, you will create backend services and deploy applications on Kubernetes, ensuring security and performance while collaborating with cross-functional teams.
Top Skills: AnsibleAWSAzureDockerGCPHelmJavaJenkinsKubernetesSpring BootTerraform
11 Hours Ago
Easy Apply
Remote
Poland
Easy Apply
205K-285K Annually
Entry level
205K-285K Annually
Entry level
Big Data • Fintech • Mobile • Payments • Financial Services
As a Full Stack Software Engineer, you will develop and launch backend systems, engage in collaboration, and contribute to team goals while ensuring code quality and efficiency.
Top Skills: AWSCSS3JavaScriptKotlinKubernetesMySQLPythonReactReact NativeReduxTypescript

What you need to know about the Charlotte Tech Scene

Ranked among the hottest tech cities in 2024 by CompTIA, Charlotte is quickly cementing its place as a major U.S. tech hub. Home to more than 90,000 tech workers, the city’s ecosystem is primed for continued growth, fueled by billions in annual funding from heavyweights like Microsoft and RevTech Labs, which has created thousands of fintech jobs and made the city a go-to for tech pros looking for their next big opportunity.

Key Facts About Charlotte Tech

  • Number of Tech Workers: 90,859; 6.5% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Lowe’s, Bank of America, TIAA, Microsoft, Honeywell
  • Key Industries: Fintech, artificial intelligence, cybersecurity, cloud computing, e-commerce
  • Funding Landscape: $3.1 billion in venture capital funding in 2024 (CED)
  • Notable Investors: Microsoft, Google, Falfurrias Management Partners, RevTech Labs Foundation
  • Research Centers and Universities: University of North Carolina at Charlotte, Northeastern University, North Carolina Research Campus

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account