Senior Software Engineer (React) (She/He/They)
Capco
Software Engineering
Poland
Posted on Apr 1, 2026
CAPCO POLAND
Role Overview
As a Senior Software Engineer, you will serve as a senior full-stack developer for our B2B and B2C SaaS products, with a focus on building secure, scalable, and customer-centric platforms. You’ll be hands-on with frontend and backend development across our React/TypeScript and NestJS/Node.js stack. This is a great opportunity to shape innovative applications that secure millions of small businesses and consumers while deepening your expertise in cybersecurity — a rapidly growing and impactful domain.
How you will get the job done
ONLINE RECRUITMENT PROCESS STEPS
- We are looking for Poland based candidate.
Role Overview
As a Senior Software Engineer, you will serve as a senior full-stack developer for our B2B and B2C SaaS products, with a focus on building secure, scalable, and customer-centric platforms. You’ll be hands-on with frontend and backend development across our React/TypeScript and NestJS/Node.js stack. This is a great opportunity to shape innovative applications that secure millions of small businesses and consumers while deepening your expertise in cybersecurity — a rapidly growing and impactful domain.
How you will get the job done
- Write and deliver clean, maintainable, and well-tested code.
- Implement front-end UI components using TypeScript and React Framework.
- Implement RESTful API endpoints using TypeScript, NestJS, and Node.js.
- Participate in peer code reviews to maintain code quality and adhere to engineering best practices.
- Collaborate with developers to build reusable code and libraries for future use.
- Implement software security requirements.
- Leverage new and cutting-edge developer tools to enhance productivity and code quality.
- Integrate APIs and services to deliver intelligent product features where applicable.
- 5+ years of experience in software engineering.
- Experience writing code in JavaScript/TypeScript, HTML5, CSS3, or related applications.
- Experience with front-end technologies and frameworks, preferably React.
- API design and development experience using NestJS and Node.js.
- Experience with application, network, and cloud security.
- Experience with building and architecting microservices.
- Strong computer science fundamentals and problem-solving/analytical skills.
- Familiarity with version control systems (e.g., Git).
- Understanding of agile software development lifecycle and DevOps principles.
- Strong verbal and written communication skills, including the ability to communicate and explain technical decisions.
- Good written and spoken English proficiency is required; this role involves regular communication with US-based stakeholders via Slack, Azure DevOps, and video calls.
ONLINE RECRUITMENT PROCESS STEPS
- Screening call with Recruiter
- Technical Interview
- Client Interview
- Feedback/Offer