Referso Jobs

Data Architect Internship

Metasys · Posted Dec 3, 2025

Open

Remote
Remote
Internship · Intern

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Data Architect Internship

Metasys · Posted Dec 3, 2025

Open

Remote
Remote
Internship · Intern

Apply with Referso

Performance Tester Internship

Metasys · Posted Dec 3, 2025

Open

Remote
Remote
Internship · Intern

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The Performance Tester is dedicated to ensuring the speed, stability, and scalability of our entire supply chain e-commerce platform.

Responsibilities

Plan, design, and execute rigorous load, stress, and endurance tests on the core e-commerce storefront, internal SaaS tools (OMS, WMS, MES), and emerging AI agent services
Design comprehensive load, stress, and endurance testing strategies for critical systems, focusing on high-volume e-commerce checkout funnels, payment gateway integrations, and API responsiveness
Execute tests using industry-standard tools (e.g., JMeter, Gatling) and cloud-based load testing services
Analyze results to identify performance bottlenecks in Node.js/NestJS services, database queries (PostgreSQL/Redis), and infrastructure components
Collaborate closely with the SRE and development teams to translate performance data into actionable optimization strategies

Skills

JMeter Gatling Prometheus Grafana OpenTelemetry JavaScript

Technical Architect (Frontend/Backend) Internship

Metasys · Posted Nov 28, 2025

Open

Remote
Remote
Internship · Intern

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Full-stack architectural leadership focused on establishing technical foundations and ensuring coherence across e-commerce UI, admin apps, and AI agent interfaces.

Compensation

Stipend: Unpaid initially; may convert to a paid internship, full-time role, or even direct client absorption (FTE) based on your performance

Responsibilities

Lead the technical strategy for our application layers, ensuring robust, scalable, and API-first development practices.
Establish the technical foundations for all applications using Next.js 14, React 18, Tailwind CSS, and Node.js 22 (NestJS).
Design and document the API-first architecture for monolithic modules and external communication.
Select and standardize frameworks, libraries, and coding patterns.
Create comprehensive system diagrams and document all major architectural decisions.

Skills

Next.js 14 React 18 TypeScript Tailwind CSS Radix UI Framer Motion Node.js 22

Solution Architect Internship

Metasys · Posted Nov 28, 2025

Open

Remote
Remote
Internship · Intern

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Design and define the technical architecture for a supply chain e-commerce platform, leading architectural reviews and mentoring engineering teams.

Compensation

Stipend: None initially. Based on your first-quarter performance, you may be offered a paid full-time opportunity, or even be absorbed directly by the client as an FTE.

Responsibilities

Design the technical vision for MES → WMS → OMS → Payments → Invoices
Define architecture and API contracts for core modules using Node.js 22/NestJS
Implement multi-tenancy and security with PostgreSQL 15 and JWT
Blueprint infrastructure with Terraform, Docker, Traefik on Oracle Cloud
Ensure compliance and observability with Prometheus, Grafana, OpenTelemetry

Skills

Node.js NestJS TypeScript Next.js React PostgreSQL Redis Meilisearch MinIO

Senior AI Engineer

Warner Music Inc. · Posted Nov 9, 2026

Open

Toronto, Ontario, Canada
Senior

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Lead AI research and engineering to develop novel algorithms, representations, and production systems for AI rights and licensing.

Responsibilities

Develop new algorithms, representations, objectives, evaluation methods, and system designs
Evaluate, challenge, and extend current research
Design rigorous benchmarks, ablation studies, and statistical evaluations
Build prototypes and scale them into production systems
Collaborate with Engineering and Product to translate scientific advances into product capabilities

Requirements

Advanced degree in machine learning, AI, computer science, electrical engineering, mathematics, physics, or another quantitative field
Nice to have: GCP
Nice to have: Kubernetes
Nice to have: Docker
Nice to have: Terraform

Skills

Python PyTorch machine learning generative models multimodal systems experimental design

Senior Backend Engineer ID99040

AgileEngine · Posted Nov 6, 2026

Open

Barcelona, Barcelona, Spain
Hybrid
Full-time · Senior
5+ years

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We are looking for a Senior Backend Engineer to build and scale the backend of a high-traffic gaming companion site.

Responsibilities

Build and maintain REST and GraphQL APIs in TypeScript (Fastify, Hono) for user profiles, subscriptions and game data, including authentication, rate limits and typed contracts.
Design schemas and write queries for PostgreSQL and MySQL (Prisma, Drizzle), including versioned game data, player builds and migrations on tables in live use.
Run ClickHouse analytics pipelines: request logs, materialized views, article and revenue metrics, and the queries behind dashboards.
Own the cache layers end to end: Redis-compatible stores, query caching, tag-invalidated cache, HTTP headers and CDN purges.
Build and run scheduled jobs and queue consumers (NATS) for game data sync, leaderboards, Meilisearch indexing, sitemaps, Stripe webhooks, payouts and data-deletion requests.

Requirements

Nice to have: Bun
Nice to have: Remix
Nice to have: Next.js
Nice to have: Fastify
Nice to have: Hono

Skills

TypeScript Node.js PostgreSQL

Senior Backend Engineer

AgileEngine · Posted Nov 6, 2026

Open

Kharkiv, Kharkivska oblast, Ukraine
Senior
5+ years

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Build and scale the backend of a high‑traffic gaming companion site.

Compensation

Competitive compensation: USD-based pay with education, fitness, and team activity budgets.

Responsibilities

Build and maintain REST and GraphQL APIs in TypeScript
Design schemas and write queries for PostgreSQL and MySQL
Run ClickHouse analytics pipelines
Own the cache layers end to end
Build and run scheduled jobs and queue consumers

Requirements

Nice to have: Bun
Nice to have: Remix
Nice to have: Next.js
Nice to have: Fastify
Nice to have: Hono

Skills

TypeScript on Node.js PostgreSQL MySQL Redis caching REST APIs GraphQL APIs AI coding tools English language proficiency

Senior Backend Engineer

AgileEngine · Posted Nov 6, 2026

Open

Cluj-Napoca, Cluj County, Romania
Senior
5+ years

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Build and scale the backend of a high‑traffic gaming companion site.

Compensation

Competitive compensation: USD-based pay with education, fitness, and team activity budgets.

Responsibilities

Build and maintain REST and GraphQL APIs in TypeScript
Design schemas and write queries for PostgreSQL and MySQL
Run ClickHouse analytics pipelines
Own the cache layers end to end
Build and run scheduled jobs and queue consumers

Requirements

Nice to have: Bun
Nice to have: Remix
Nice to have: Next.js
Nice to have: Fastify
Nice to have: Hono

Skills

TypeScript Node.js PostgreSQL MySQL Redis REST GraphQL AI coding tools

Data Architect Internship

Data Architect Internship

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Performance Tester Internship

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Technical Architect (Frontend/Backend) Internship

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Solution Architect Internship

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Senior AI Engineer

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Senior Backend Engineer ID99040

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Senior Backend Engineer

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Senior Backend Engineer

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Meilisearch jobs

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