Senior Full-Stack Developer (Node.js/React) with banking background

S-PRO; Polska; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Flexible schedule

Remote work model

Medical insurance

Paid vacations

Paid Sick-leaves

Paid State holidays

Job summary

S-PRO, a top-tier Digital Innovation and Software Engineering company, is seeking a motivated Full-Stack Developer for its cutting-edge fintech project. You will build end-to-end features across backend (Node.js, NestJS) and frontend (React, MUI), working with PostgreSQL and Kafka in a cloud environment.

Join a team of 200+ professionals delivering innovative digital solutions, with a remote-friendly setup and opportunities to grow within finance, healthcare, and energy domains.

Qualifications

• 5+ years of experience as a FullStack Developer.
• FinTech projects or payment-systems integrations.

Responsibilities

• Develop and maintain end-to-end features across backend (Node.js, NestJS) and frontend (React, MUI).
• Build event-driven services with Kafka and design PostgreSQL data models for financial operations.
• Integrate with payment providers and blockchain infrastructure (tokenization, smart contracts, transactions).
• Contribute to infrastructure (AWS, Terraform, Helm, Kubernetes) and monitoring (Datadog).
• Analyze requirements, propose solutions, and provide estimates.
• Write tests, participate in code reviews, and support production.
• Collaborate with product, QA, and DevOps teams.

Skills

Full-stack development

FinTech experience

Requirements analysis

Code reviews

Distributed systems

Tools

Node.js

TypeScript

NestJS

React

React Query

Valtio

MUI

PostgreSQL

TypeORM

Kafka

Docker

Kubernetes

Terraform

Helm

Datadog

AWS (S3, SES, RDS)

Job description

S-PRO, atop-tier Digital Innovation and Software Engineering company. Wespecialize inproviding cutting-edge services for fast-growing businesses and enterprises, with astrong focus onFinance, Renewable Energy and Healthcare domains and expertise inAI, Blockchain and Data Science. Our team ofover 200 dedicated professionals works tirelessly across our global offices todevelop innovative digital solutions that drive sustainable business value and increase our client’s competitiveness inadynamic digital landscape.

Project description: The product is one of the first licensed digital asset banks powered by Blockchain. Our team is covering the delivery part of one of the core company’s services. It allows in a very simplified manner, process of capital raising for companies and investors providing the creation of new assets, manage offerings, buy, trade and earn crypto to future-proof your investment strategy.

Requirements

• 5+years ofexperience asaFullStack Developer;
• Experience with fin-tech projects orintegrating with payment systems;
• Strong knowledge ofNode.js, TypeScript, and NestJS;
• Strong knowledge ofReact, React Query, Valtio, MUI;
• Experience with PostgreSQL (TypeORMor other ORMsolutions);
• Strong experience with message brokers (Kafka);
• Nice tohave Docker, Kubernetes experience;
• Experience inthe infrastructure (terraform, helm charts);
• Experience with observability/monitoring (datadog orsimilar);
• Hands-on experience with AWS services (S3, SES, RDS);
• Knowledge ofsoftware development processes such astesting, code review, debugging, estimation, and production support;
• Ability toindependently analyze requirements and implement solution;
• General understanding about blockchain (tokenization, smart contracts, how tohandle blockchain transactions);
• Design patterns and algorithms knowledge.

Responsibilities

• Develop and maintain end-to-end features across the backend (Node.js, NestJS) and frontend (React, MUI);
• Build event-driven services with Kafka and design PostgreSQL data models for financial operations;
• Integrate with payment providers and blockchain infrastructure (tokenization, smart contracts, transactions);
• Contribute to infrastructure (AWS, Terraform, Helm, Kubernetes) and monitoring (Datadog);
• Analyze requirements, propose solutions, and provide estimates;
• Write tests, take part in code reviews, and support production;
• Collaborate with product, QA, and DevOps teams.

What we offer

• Long team focus: wecreate anenvironment oftransparent communication, and minimal bureaucracy, which leads tolong-term relationships.
• Development of niche expertise: weare working inseveral niches, such asFinTech, healthcare, and logistics. Therefore, our employees can develop their own expertise inthese domains.
• Continuous learning: wecreate employee development plans/ personal roadmaps /quick promotion processes.
• Internal career development: 80%ofour current executives were promoted tothose positions within S-PRO. Weencourage initiative. Ifaperson wants toset new challenges and grow, wewill definitely support them.

Benefits and perks

• Flexible schedule.
• Remote work model.
• Medical insurance
• Paid vacations
• Paid Sick-leaves.
• Paid State holidays.

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