Senior Software Engineer (Backend)

N.B.!!! Location - remote from Latvia, Lithuania (we provide support).
In partnership with one of the global consulting enterprises, we are seeking  for a Senior Software Engineer (JavaScript and TypeScript) to join the Mobile Backend for Frontend team. You will play a key role in maintaining and evolving our high-performance backend systems, supporting a major content delivery platform. You will contribute to technical decision-making, work closely with cross-functional teams, and mentor junior developers while adopting modern JS / TS libraries and AWS services. 

Responsibilities 

·      Design, build, and maintain reliable, scalable backend systems in JavaScript and TypeScript. 

·      Contribute to architectural discussions and lead technical decision-making. 

·      Write clean, maintainable, and well-tested code. 

·      Collaborate with product managers, QA engineers, and mobile frontend developers to deliver high-quality features. 

·      Optimize system performance and reliability using AWS cloud services. 

·      Support the full software development lifecycle—from concept to deployment and monitoring. 

·      Review code, mentor team members, and promote best practices. 

·      Work closely with the team to identify and resolve production and scalability issues. 

Must Have 

·      5+ years of professional experience in software engineering, with 3+ years using JS / TS. 

·      Experience designing and building RESTful APIs and microservices. 

·      Proficient with Git, CI/CD pipelines, and modern DevOps practices. 

·      Strong unit testing and TDD skills . 

·      Excellent communication and collaboration skills. 

Desirable 

·      Working knowledge of the development lifecycle of mobile apps. 

·      Working knowledge of AWS services, especially EC2, DynamoDB, RDS, and API Gateway. 

·      Experience with CloudWatch for monitoring and alerting. 

·      Familiarity with Agile methodologies and working in cross-functional squads.