Are you ready to shape the future of financial technology with cutting-edge frontend solutions? Join Sigma Software as a Senior Frontend Engineer and work on mission‑critical systems that power global payment processing. This role offers the opportunity to collaborate with talented engineers, product managers, and designers to deliver exceptional user experiences.
We are hiring for a senior-level position — Remote work mode, open to candidates worldwide. Employment type: Full-time.
At Sigma Software, you’ll be part of a team that values innovation, scalability, and quality.
Why join us? You’ll work on high-impact projects, influence architecture decisions, and contribute to a platform used by businesses worldwide.
CUSTOMER
Our customer is a leading SaaS provider in the FinTech industry, specializing in AI-native revenue platforms for finance and accounting teams. Their solutions cover subscription management, billing, and revenue operations for companies of all sizes. With a strong focus on compliance, scalability, and integration with multiple payment gateways, they help businesses streamline financial processes and accelerate growth.
PROJECT
The project involves enhancing and maintaining core payment processing systems, integrating with multiple payment gateways, and ensuring the stability, scalability, and compliance of financial transaction pipelines and APIs. You’ll work closely with cross-functional teams, contributing ideas and influencing architecture.
Key Technologies: React, Next.js, TypeScript, JavaScript, APIs, Postgres, Node.js/NestJS (optional), Vue, Angular
- Develop and maintain scalable, high-performance frontend applications using React and Next.js
- Collaborate with Product, Design, and Backend teams to deliver seamless user experiences
- Integrate APIs and backend services into the frontend
- Participate in architecture discussions, sprint planning, and code reviews
- Ensure responsive design, accessibility, and cross-browser compatibility
- Contribute to continuous improvement of engineering processes and product quality
- 5+ years of professional software engineering experience with strong focus on frontend development
- Solid experience with React (Next.js is a plus)
- Strong proficiency in TypeScript and JavaScript
- Experience integrating APIs into web applications
- Familiarity with backend concepts and relational databases (Postgres)
- Understanding of responsive design, accessibility, and cross-browser compatibility
- Excellent communication skills and collaborative mindset
- English level: Advanced
WILL BE A PLUS
- Experience with other frontend frameworks (Vue, Angular)
- Knowledge of Node.js or NestJS
- Experience with performance optimization and frontend build tools
ERSONAL PROFILE
- Strong problem-solving skills
- Collaborative and communicative team player
- Detail-oriented with focus on quality and user experience
- Values: Proactive, adaptable, innovative mindset
Top Skills
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
