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Wizeline

Global software engineering and digital transformation

Lead Fullstack Software Engineer - JavaScript

Full-Time
No salary listed
Senior
Barcelona, Spain
In Person
Software EngineeringFull-Stack Engineering

About the job

Requirements
  • At least 5 years of experience architecting and building scalable web applications.
  • Expert-level JavaScript skills and strong experience developing applications with React.
  • Extensive experience building GraphQL APIs with Node.js.
  • Strong experience with Amazon Web Services, including S3, EC2, RDS, API Gateway, CloudFront, and Lambda.
  • In-depth knowledge of database technologies and hands-on experience with PostgreSQL.
  • Real-world experience implementing and maintaining continuous integration and continuous delivery pipelines using tools such as GitHub Actions or Jenkins.
  • Strong understanding of software architecture, scalability, performance, and maintainability.
  • Experience with software engineering best practices, including unit testing, code reviews, Git, documentation, and coding standards.
  • Experience providing technical direction and mentoring junior developers.
  • Strong communication and collaboration skills with technical and non-technical stakeholders.
  • Ability to work independently, identify risks, and drive solutions in a fast-paced agile environment.
Responsibilities
  • Take full technical ownership of multiple products, including building new features, implementing technical improvements, and providing support to editorial teams.
  • Design, develop, and maintain scalable web applications using JavaScript, React, and Node.js.
  • Develop and maintain GraphQL APIs using Node.js.
  • Design and optimize cloud-based applications and services using Amazon Web Services.
  • Work with PostgreSQL and other database technologies to build reliable and scalable data solutions.
  • Lead and provide technical direction to a team of junior developers.
  • Establish and enforce software engineering best practices, including coding standards, code reviews, Git, continuous integration and continuous delivery, and automated testing.
  • Continuously optimize application architecture, performance, scalability, maintainability, and reliability.
  • Build and promote reusable components and solutions that can be leveraged across multiple products and teams.
  • Collaborate with stakeholders and technical teams to communicate solutions, demonstrate work, identify risks, and drive projects forward.
  • Work effectively in a fast-paced agile environment while meeting critical project timelines.
  • Provide technical guidance and independently drive solutions while seeking feedback when appropriate.
Desired Qualifications
  • Proficiency with one or more artificial intelligence tools for coding, drafting, analysis, research, or process automation, including recommending effective uses and identifying workflow opportunities.
  • Experience with NestJS.
  • Experience building reusable components, shared libraries, or platforms following an open-source mentality.
  • Experience working in the media and publishing industry.
  • Experience building tools or platforms used by editorial, content, or newsroom teams.
  • Experience designing highly scalable and high-performance web applications.
  • Strong understanding of cloud-native and distributed application architectures.
  • Experience optimizing application performance, reliability, and maintainability.
  • Experience working with multiple engineering teams and driving technical standards across teams.

About the company

Wizeline is a global technology services firm helping organizations accelerate digital transformation and build software products. It delivers customized solutions through project-based fees, long-term contracts, or consulting, with engagement models like embedded Studio teams, autonomous Project pods, and flexible staff augmentation. Services include software development, AI, cloud and data engineering, and UX design, focusing on modernizing core tech and enabling data-driven decisions. Its goal is to help clients build better products faster, expand their technical capabilities, and grow their teams, supported by Wizeline Academy and regional engineering hubs.

Company Size

1,001-5,000

Company Stage

Series B

Total Funding

$62.1M

Headquarters

Guadalajara, Mexico

Founded

2013

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Simplify's Take

What believers are saying

  • Q1 2025 bookings hit $34 million and revenue reached $32 million.
  • Wizeline hired 156 people globally in Q1 2025, signaling client demand.
  • Marketing AI and Ascend.io partnerships deepen AI, data, and regulated-industry relevance.

What critics are saying

  • Leadership churn persisted: Angelani exited in May 2026, replaced by Inés Casares.
  • Low-margin services face commoditization as Accenture, Globant, and EPAM push generative AI.
  • Employee reports cite layoffs and weak promotion paths, risking delivery quality and retention.

What makes Wizeline unique

  • Wizeline pairs nearshore delivery in Mexico, Colombia, Romania, Spain, and Vietnam.
  • Its Perform AI stack bundles agentic pods, human oversight, and industry-specific workflows.
  • April 2025 Vector platform already supports more than a dozen client engagements.

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Benefits

  • Health Insurance
  • Wellness Program
  • Flexible Work Hours
  • Remote Work Options
  • Paid Vacation
  • 401(k) Retirement Plan
  • 401(k) Company Match
  • Professional Development Budget
  • Conference Attendance Budget
  • Stock Options
  • Company Equity
  • Phone/Internet Stipend

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

1%

2 year growth

2%
MarTech360
Aug 14th, 2025
MarTech360'S Weekly News Roundup With Interpublic Group, Sprout Social, NiCE, Nielsen, Speechify And More!

Wizeline has launched Marketing ^ AI(TM), a next-generation solution designed to transform marketing and content operations for organizations managing large-scale, content-intensive campaigns under complex regulatory and compliance requirements.

Wizeline
Feb 20th, 2025
Wizeline Appoints Simon Bucknall as Chief Sales Officer

NEW YORK, NY - Feb. 20, 2025 - Wizeline, a global AI-native product engineering company, today announced the appointment of Simon Bucknall as Chief Sales Officer, effective immediately.

GlobeNewswire
Jul 31st, 2024
Wizeline Announces Strong Q2 Momentum, Surpassing Key Benchmarks

European Growth Strategy: Building on significant client growth, Wizeline is rapidly expanding its operations in Europe.

Wizeline
May 7th, 2024
Wizeline and Ascend.io Join Forces to Unleash AI-Powered Data Automation

By integrating Ascend.io's automation technologies with Wizeline's AI expertise & development services, the partnership expedites the movement to modern data architectures, reducing the time to value for digital transformation initiatives.

Wizeline
Apr 23rd, 2024
Wizeline Showcases Generative AI-powered Live News Segmenter at NAB Show 2024 with AWS

Wizeline, a leading AI-powered software engineering company, unveiled a groundbreaking new product, the Gen AI Live News Segmenter on AWS, at the NAB Show in Las Vegas.