Ready to shape the future of logistics technology? We are looking for a Middle/Senior Full Stack Developer to join our distributed team and help build a next-generation e-commerce fulfillment platform. This role offers remote flexibility with the option to work from Kraków, Poland.
At Sigma Software, we partner with some of Europe’s most innovative companies, delivering solutions that combine cutting-edge technology with business impact. You will work in a collaborative Agile environment, leveraging modern frameworks and AI-assisted tools to create high-performance solutions.
Why join us? You’ll be part of a long-term partnership, working on high-impact projects with access to advanced AI tools, cloud technologies, and a supportive team culture.
CUSTOMER
Our customer is one of Europe’s leading logistics providers, headquartered in Germany. Specializing in integrated supply chain systems and data-driven logistics optimization, they operate across multiple European markets, offering advanced warehousing, transportation, and fulfillment services. Sigma Software has been collaborating with them since 2017, delivering over 10 active projects that drive innovation and efficiency.
PROJECT
You will contribute to the development of a next-generation e-commerce fulfillment platform designed to automate and optimize order processing, inventory management, and delivery tracking. The solution leverages modern web technologies and AI-assisted development tools to ensure scalability and efficiency. This is a chance to work on a high-impact product in a collaborative, Agile environment.
Job Description- Design, develop, and maintain robust software applications using TypeScript/JavaScript, Node.js, NestJS, and React.js
- Implement new functionality from scratch, including role-based access control services, API integration services, and custom endpoints
- Work in an AI-augmented development environment, leveraging tools like Claude Code, Cursor, and Microsoft Copilot
- Collaborate closely with stakeholders to define, design, and deliver new features
- Ensure code quality, security, and performance through critical evaluation of AI-generated outputs
- Participate in SCRUM ceremonies and contribute to team planning, estimation, and retrospectives
- 3–5 years of commercial development experience with a focus on TypeScript/JavaScript
- Proven expertise in Node.js, NestJS, React.js, Next.js, and REST API development
- Knowledge of Go
- Experience with AI-assisted coding tools (Claude Code, Cursor, Microsoft Copilot, or similar)
- Ability to write clear prompts for code generation and refactoring
- Skills in evaluating AI-generated code for security and performance implications
- Experience translating AI-generated specifications into implementation tasks
- Proficiency in debugging and validating AI-generated code
- Familiarity with AI-driven development frameworks (BMAD, Superpowers, GSD, spec-kit, or equivalent)
- Experience with any cloud provider (preferably Azure)
- Experience working in SCRUM teams
- Fluent English
WILL BE A PLUS
- Experience integrating and working with design systems (Tailwind, Storybook)
- Proven experience with AI-augmented development (pet projects, certifications)
- Participation in AI-assisted requirements breakdown and task decomposition using frameworks like spec-kit or BMAD
PERSONAL PROFILE
- Strong communication, multitasking, and problem-solving skills
- Analytical thinking and sound technical judgment
- Quick grasp of existing digital products and architectures
Skills Required
- 3-5 years of commercial development experience with TypeScript/JavaScript
- Proven expertise in Node.js and NestJS
- Proven expertise in React.js and Next.js
- Experience developing REST APIs
- Knowledge of Go
- Experience with AI-assisted coding tools (Claude Code, Cursor, Microsoft Copilot, or similar)
- Ability to write clear prompts for code generation and refactoring
- Ability to evaluate AI-generated code for security and performance
- Experience translating AI-generated specifications into implementation tasks
- Proficiency in debugging and validating AI-generated code
- Familiarity with AI-driven development frameworks (BMAD, Superpowers, GSD, spec-kit, or equivalent)
- Experience with any cloud provider (preferably Azure)
- Experience working in SCRUM teams
- Fluent English
- Experience integrating and working with design systems (Tailwind, Storybook)
- Proven experience with AI-augmented development (pet projects, certifications)
- Participation in AI-assisted requirements breakdown and task decomposition using frameworks like spec-kit or BMAD
What We Do
Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 21 years, providing comprehensive IT solutions to various businesses, ranging from startups to established software product houses. As one of Europe's substantial IT consultancies, it brings together a dedicated workforce of over 2,100 professionals in 40 offices across 19 countries. With a diverse client base, including more than 300 enterprises, including Fortune 500 stalwarts, Sigma Software Group is a preferred choice for developing solutions that help businesses create cutting-edge products while meeting their unique needs. Sigma Software Group operates as a dynamic ecosystem of tech companies, offering 25 ready-to-implement innovative products and 40+ value-added services. Furthermore, Sigma Software Group is committed to fostering innovation through initiatives such as the Sigma Software Labs business incubator, Sigma Software University, the SID Venture Partners VC Fund, UA Tech Network, Techosystem, the European Business Association, and other collaborative efforts. Since 2015, Sigma Software Group has consistently earned recognition on the IAOP's prestigious World's Top 100 Outsourcing list. The company's accomplishments have also been acknowledged by prominent global media outlets such as Forbes, CNBC, The Times, and Reuters
