Senior Backend Engineer (Remote)Recruiter4you • Bucharest, Bucharest, .RO

Senior Backend Engineer (Remote)

Recruiter4you • Bucharest, Bucharest, .RO

În urmă cu 2 ore

Tip loc de muncă

Quick Apply

Descrierea postului

We act as a true HR Business Partner - providing tailored HR advisory while connecting the right talent with the right opportunities. Our focus is on delivering exceptional service and building long-term success for both businesses and candidates.

Recruiter4You is a brand operated by Consultant4You LTD a company based in Gibraltar

We are assisting one of our clients, a new exciting startup which is looking for a full remote :

Senior Backend Engineer

Responsibilities

Architect, build, and optimize backend systems using TypeScript , NestJS , and Hono .
Design and document scalable, secure APIs and microservices following OpenAPI / Swagger standards.

Build robust authentication & authorization frameworks :

JWT, OAuth2, API keys

RBAC / ABAC permissions

Session security & secure cookies

Implement code-level security patterns aligned with OWASP Top 10 , including input validation, secure headers, CSRF / XSS mitigation, rate limiting, and safe error handling.

Design performant, maintainable MongoDB schemas ; optimize queries, indexes, and aggregations.

Work closely with DevOps to build cloud-native systems running on AWS EKS , with CI / CD, load balancing, and auto-scaling.

Implement secure and optimized content delivery with AWS CloudFront (signed URLs / cookies, CDN caching).

Build event-driven and distributed systems using queues / streams (Redis, RabbitMQ, Kafka, SQS).

Maintain documentation, enforce engineering standards, and lead backend code quality reviews.

Troubleshoot production issues, optimize performance, and ensure system stability.

Collaborate across teams (Product, DevOps, Frontend, Media Processing) to deliver high-performance features.

Required Technical Skills

Backend Engineering

Expert-level TypeScript and experience building large-scale backend systems.

Deep expertise with NestJS (guards, interceptors, pipes, modules, microservices).

Strong hands-on experience with Hono for high-performance edge / serverless routing.

Strong knowledge of API architecture :

REST, WebSockets, GraphQL

OpenAPI / Swagger documentation

API versioning, rate-limits, pagination

Security & Authentication

In-depth understanding of :

JWT, OAuth2, PKCE

RBAC / ABAC authorization

Input validation, sanitization

CORS, secure headers, HTTPS / TLS

OWASP Top 10 secure coding standards

Ability to build secure-by-design backend systems in high-risk environments.

Cloud Native & DevOps

Strong familiarity with AWS , specifically :

EKS , IAM, CloudFront, API Gateway / ALB

Lambda, S3, ElastiCache, SQS / SNS

Understand containerized architecture (Docker), K8s deployments, autoscaling, and observability.

Experience creating high-availability, fault-tolerant, cost-optimized backend systems.

Experience with Cloudflare is a plus.

Data & Distributed Systems

Strong MongoDB expertise : indexing, aggregations, schema design, sharding (advantage).

Experience with distributed caching and queueing systems :

Redis, RabbitMQ, Kafka, SQS

Experience with media-heavy systems , file processing, and content delivery.

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Senior Backend Engineer • Bucharest, Bucharest, .RO

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