---
title: 'Senior JavaScript Software Engineer (Barcelona - Hybrid) at WIZELINE'
canonical: 'https://feeny.ai/job/senior-javascript-software-engineer-barcelona-hybrid-wizeline-barcelona-xj3kaperxpqs'
type: 'job'
last_seen: '2026-09-06'
---

# Senior JavaScript Software Engineer (Barcelona - Hybrid) at WIZELINE

- **Company:** WIZELINE
- **Location:** Barcelona, Spain
- **Posted:** 2025-03-21
- **Last confirmed live:** 2026-09-06
- **Apply:** https://www.wizeline.ai/careers/job?gh_jid=4635298

## Job description

We are: Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.

With the right people and the right ideas, there’s no limit to what we can achieve

Are you a fit? Sounds awesome, right? Now, let’s make sure you’re a good fit for the role:

## Key Responsibilities

- Design, develop, and maintain scalable backend services using Node.js.
- Build and optimize cloud-native applications on AWS.
- Develop and maintain event-driven and messaging-based architectures using SQS and SNS.
- Design and manage serverless solutions with AWS Lambda.
- Work with DynamoDB to build high-performance, scalable data solutions.
- Collaborate with cross-functional teams to deliver reliable, low-latency backend services.
- Monitor, troubleshoot, and optimize system performance, availability, and scalability.
- Participate in code reviews and contribute to engineering best practices.

Must-have Skills

- +5 years of experience working as a Frontend Engineer.
- Strong experience with Node.js and backend application development.
- Hands-on experience with AWS, including:
- EC2
- Lambda
- SQS
- SNS
- DynamoDB
- Experience designing and developing scalable distributed systems.
- Knowledge of asynchronous programming and event-driven architectures.
- Experience building RESTful APIs and backend integrations.
- Strong problem-solving and debugging skills.
- Excellent communication and collaboration skills.

Nice-to-have:

- AI Tooling Proficiency: Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows.
- Experience building systems that process millions of messages per day with high reliability.
- Experience designing and optimizing low-latency distributed systems.
- Knowledge of graceful degradation strategies to ensure service resilience under failure conditions.
- Experience with high-availability, fault-tolerant, and cloud-native architectures.
- Familiarity with performance optimization and scalability best practices.

Experience developing projects using frameworks.What we offer:

- A High-Impact Environment
- Commitment to Professional Development
- Flexible and Collaborative Culture
- Global Opportunities
- Vibrant Community
- Total Rewards

*Specific benefits are determined by the employment type and location.

Find out more about our culture [here](https://www.instagram.com/wizelineglobal/).

## About WIZELINE

## Company Overview
- **One-liner**: Wizeline is a global AI-centric technology solutions provider that designs, builds, and scales digital products and platforms for enterprises.
- **Entity Type**: Private (majority-owned by Caisse de dépôt et placement du Québec – CDPQ)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2014
- **Founders**: Bismarck Lepe (Executive Chairman)

## Core Business
- **Primary industries**: IT Services & Consulting, AI Engineering, Digital Product Development
- **Target customers**: B2B enterprises across media, fintech, publishing, sports, investment banking, healthcare, CPG, and life sciences
- **Mission/Purpose**: “Do the Important, Seamlessly” – helping clients modernize technology, harness data, and integrate AI to drive measurable outcomes

## Products & Services
- **AI‑Centric Product Development**: Full‑stack engineering, UX design, and AI integration services delivered through cross‑functional, agile pods.
- **Agentic PODs**: Dedicated innovation teams augmented by AI agents for faster, smarter delivery.
- **Nearshoring Advisory**: Strategic nearshore engagement models for building dedicated innovation hubs in Latin America, Europe, and Asia.
- **WizeAcademy**: Internal training and certification programs for continuous learning in cloud technologies and coding.

## Market Standing
- **Valuation / Market Cap**: Not publicly disclosed (acquired by CDPQ in 2021)
- **Key Metrics**:
  - Annual Revenue: ~$104.4 M (estimated, per LinkedIn)
  - Total Funding: $100.1 M (Series A, Series B, and debt financing)
- **Notable Investors / Partners**:
  - Majority investor: CDPQ
  - Prior investors: Apax Digital, Sierra Ventures, LEAP Global Partners, A.Capital Ventures
  - Partner: Fullstory (2024 North American Service Partner of the Year)
- **Growth Signals**:
  - Recognized on Inc. 5000 list of America’s Fastest-Growing Private Companies (2021–2024)
  - Ranked #1 with Fullstory as North American Service Partner of the Year (2024)
  - Expanded to 11 countries with teams in the Americas, Europe, and APAC
  - Surpassed 1,000 employees and continues to hire aggressively

## Competitive Advantages
- **Nearshore delivery model** with deep presence in Mexico, Colombia, Argentina, and Vietnam – offering cost‑effective, high‑quality engineering talent
- **Proprietary frameworks** (e.g., “Wizeline Way”) that combine boutique consulting agility with enterprise‑scale execution
- **AI‑first approach** – productized industry‑specific AI solutions that accelerate time‑to‑market for clients
- **Inc. 500 recognition** for four consecutive years signals consistent growth and client trust

## Strategic Focus
- Deepening AI capabilities through **Agentic PODs** and dedicated AI engineering teams
- Expanding European footprint with a new Barcelona office and growing operations in Spain, UK, and Romania
- Continuing to invest in nearshore innovation hubs, especially in Latin America and Vietnam
- Strengthening partnerships and growing the client portfolio in high‑value sectors like fintech, media, and healthcare

## Why Work Here
- **Culture**: “A global community of innovators, problem‑solvers, and lifelong learners” – strong emphasis on growth, collaboration, and belonging
- **Remote & Flexibility**: Remote‑friendly with flexible work policy; physical offices in SF, Mexico City, Guadalajara, Barcelona, and Ho Chi Minh City
- **Perks**:
  - Competitive compensation and total rewards
  - Health benefits and wellness programs
  - Savings & retirement plans
  - Global mobility opportunities
  - Free certifications (cloud, coding) through WizeAcademy
  - Happy hours, gaming tournaments, sports activities
- **Recognition**:
  - HRC Best Places to Work for LGBTQ+ (2019–2024)
  - Expansión Super Empresas (2020–2023)
  - Expansión Super Espacios de Trabajo (2020–2021)

## Sources
1. [Wizeline Careers Page](https://www.wizeline.ai/careers/)
2. [Wizeline About Us](https://www.wizeline.ai/about-us/)
3. [Built In Wizeline Profile](https://builtin.com/company/wizeline)
4. [LinkedIn Company Page](https://www.linkedin.com/company/wizeline)
5. [Greenhouse Careers Board](https://job-boards.greenhouse.io/wizeline)

## Other roles at WIZELINE

- [Data Engineer (Databricks)](https://feeny.ai/job/data-engineer-databricks-wizeline-argentina-gwdrtjj9scyn) — Argentina
- [AI Solutions Architect](https://feeny.ai/job/ai-solutions-architect-wizeline-argentina-wznetnczdcfj) — Argentina
- [AI Solutions Architect](https://feeny.ai/job/ai-solutions-architect-wizeline-colombia-ah4psye94zjs) — Colombia
- [AI Solutions Architect](https://feeny.ai/job/ai-solutions-architect-wizeline-mexico-5kq0wsqnba4f) — Mexico
- [Senior AI Agent Engineer](https://feeny.ai/job/senior-ai-agent-engineer-wizeline-mexico-22wb75e2pvfj) — Mexico
- [Senior AI Agent Engineer](https://feeny.ai/job/senior-ai-agent-engineer-wizeline-colombia-nypv6v60efpv) — Colombia
- [Print Production Project Manager](https://feeny.ai/job/print-production-project-manager-wizeline-mexico-b5fah51fpm6y) — Mexico
- [Senior Backend Engineer (Java)](https://feeny.ai/job/senior-backend-engineer-java-wizeline-barcelona-m8zbaptsbm8v) — Barcelona, Spain
- [Senior AI Agent Engineer](https://feeny.ai/job/senior-ai-agent-engineer-wizeline-argentina-5qmgs9nm4e0w) — Argentina
- [Senior Full-Stack Software Engineer & AI](https://feeny.ai/job/senior-full-stack-software-engineer-ai-wizeline-barcelona-0rw7se4mqrvc) — Barcelona, Spain