Senior Backend Engineer - Cloud-Native Node.js/TS on AWS

CUJO

Helsinki

Hybrid

EUR 56,000 - 78,000

Full time

14 days+

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Benefits offered by this job

Health insurance

Learning & Certifications

Annual performance bonuses

Flexible work options

Job summary

CUJO AI is seeking a Senior Software Engineer to design and build secure, scalable cloud services for its OnTheMove product. You will work with TypeScript/Node.js on AWS serverless stacks, delivering backend capabilities used by mobile apps and network providers worldwide.

You will own IaC and CI/CD pipelines, mentor peers, and collaborate with multinational teams. The role offers flexible work options, learning opportunities, and competitive compensation.

Qualifications

Strong hands‑on experience with TypeScript and Node.js.
Experience with AWS services.
Experience with OAuth2.0/OpenID Connect and secure authentication flows.
Track record of building CI/CD pipelines and driving test automation.
A security-first mindset and comfort working in Agile teams.

Responsibilities

Design and build cloud-native services on AWS serverless architecture.
Develop RESTful APIs with Node.js/TypeScript around OTM product functionality.
Own infrastructure-as-code and CI/CD pipelines.
Monitor, troubleshoot, and optimize systems for reliability at scale.
Mentor engineers and collaborate across distributed, multinational teams.

Skills

TypeScript

Node.js

AWS

OAuth 2.0/OpenID Connect

CI/CD

Test automation

Security mindset

Agile

Tools

AWS Lambda

API Gateway

Cognito

DynamoDB

CloudFront

MSK

AWS CDK

Job description

You will own IaC and CI/CD pipelines, mentor peers, and collaborate with multinational teams. The role offers flexible work options, learning opportunities, and competitive compensation.

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