Senior Backend Developer (Node.js and TypeScript)
Vacancy Description
We are seeking an experienced Senior Backend Developer to develop and maintain high-performance backend services for a FinTech project. The ideal candidate will have extensive expertise in Node.js and TypeScript, with a deep understanding of building scalable and secure backend solutions in a cloud-native environment.
Requirements
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8+ years of experience in developing and maintaining backend services using Node.js & TypeScript.
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Strong expertise in GraphQL (Apollo Server) and RESTful API development.
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Solid understanding of cloud-native architectures, particularly AWS serverless solutions (Lambda, API Gateway, DynamoDB, CloudFormation).
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Experience with NoSQL and SQL databases, with an emphasis on performance optimization.
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Strong knowledge of authentication, authorization, and security best practices.
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Exposure to DevOps practices, CI/CD pipelines, and infrastructure as code.
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Frontend experience is a plus: React, CSS, Next.js.
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Fluent in English with excellent communication skills.
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Strong problem-solving skills and ability to work in a fast-paced environment.
Would be a plus
- Experience working in FinTech or other highly regulated industries.
- Knowledge of blockchain technologies and cryptographic security.
- Understanding of financial data processing, payment gateways, and transaction security.
Responsibilities
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Develop and maintain backend services using Node.js & TypeScript.
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Build and optimize GraphQL APIs with Apollo Server and REST APIs using Koa.js.
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Integrate with third-party APIs and external services.
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Design and manage AWS serverless architectures including Lambda, API Gateway, DynamoDB.
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Ensure security, authentication, and data protection using JWT, OAuth.
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Optimize API performance, caching strategies (Redis), and database queries.
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Implement CI/CD pipelines and Infrastructure as Code (IaC) using CloudFormation.
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Handle error logging and monitoring using AWS CloudWatch.
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Optimize database queries and indexing for high-volume transaction processing.
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Write and maintain unit, integration, and end-to-end tests using Jest.
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Collaborate with frontend teams, product managers, and designers to ensure seamless integration.
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Mentor junior developers and review code for best practices.
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Maintain API documentation and system architecture.
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Adhere to industry standards for FinTech and implement best practices.
What We Offer
Competitive compensation
Social package (24 working days of annual leave and 5 paid sick days)
Flexible working hours
Challenging projects in diverse business domains and a variety of tech stacks
Personal development and professional growth opportunities
Work with talented, ambitious and family-feel team
Educational possibilities: corporate courses, knowledge hubs, and in-house English classes
Compensation for your professional certification & support for your learning activities
Opportunity to choose IT equipment you like
Corporate social responsibility
Would you like to join us?
Please send your resume for our review, and we will be in touch with you soon.