Senior Web Ui Developer (React), Mexico City

Ion Group; Xico; Híbrido; MXN 1,254,000 - 1,614,000; Jornada completa

Descripción de la vacante

A leading technology consultancy is seeking a Senior UI Developer to collaborate on a custom trading UI for high-frequency trading clients. The role requires 7+ years of front-end development experience, proficiency in modern JavaScript, ideally TypeScript, and strong skills in React. Responsibilities include leading projects, building client relationships, and supporting business development efforts. The position is based in Mexico City with a mandatory office presence one day a week or more if required.

Formación

• 7+ years of commercial-grade web/front-end development experience.
• Strong experience with modern JavaScript and building applications with React.
• Solid skills with API formats, preferably REST and GraphQL.
• Experience with Agile development methodologies.

Responsabilidades

• Act as a hands-on engineer and architect for UI projects.
• Lead engineers and stakeholders to ensure project success.
• Develop strong client relationships and act as a technical advisor.
• Support business development to create compelling pitches.

Conocimientos

Modern JavaScript

TypeScript

React

API formats (REST, GraphQL)

Agile methodologies

Team leadership

Communication skills

Educación

Bachelor's or Master's in Computer Science, Engineering, Physics, Math

Herramientas

Bloomberg

Salesforce

Excel

Databricks

Descripción del empleo

Lab49 is an award-winning specialist consultancy that creates bespoke technology in partnership with the most important companies in finance.

We were founded in to bring Silicon Valley solutions to Wall Street's door. Since then, we have worked on successive waves of technological change, including distributed computing, high-speed automation, enterprise UX and digital distribution, DevOps, cloud and data science.

Today, we are an established partner in financial markets, having delivered hundreds of projects for clients including all the world's tier-one investment banks and many of the largest buy-side firms globally.

Being part of Lab49 means bringing your drive and creativity into an environment where your contributions will make immediate impact. Engineers work in cross-functional teams, consulting directly with our clients, shaping not only technical solutions to business problems but delivering them into production.

We are seeking a Senior UI Developer, working with our clients in the high-frequency trading space. Your close collaboration with both our existing team and our client's team is essential to both make progress against an existing backlog of work for a custom trading UI, but also manage the ecosystem of UI products in our client's tech environment. You will report to the Interactive Practice Head and help drive the direction of UI engineering across Lab49.

Responsibilities

Act as a hands‑on engineer and architect to support work across the UI & Mobile Engineering Practice; from small initiatives all the way up to the design and build of complex systems.

Lead and participate in projects directly, serving as a role model for project teams and working with all other practices to ensure successful project outcome.

Lead engineers and stakeholders to ensure appropriate progress and results; must be commercial in approach.

Develop strong relationships with clients as a strategic partner and technical advisor, helping us to expand our footprint and secure follow‑on work.

Partner with and support the business development team to create and deliver compelling pitches that help define the problem, captivate the client, present a solution, and work out the engagement (scope, structure, deliverables) terms.

Build and reinforce your professional network through active engagement in industry events, public speaking opportunities, etc.

Provide thought leadership for the UI & Mobile Engineering Practice and actively encourage learning and development.

Help drive the ongoing effort to find, attract, interview, and hire top software engineering talent.

People Management, including coaching, mentoring and performance management of employees may be included in this role.

Office presence in central Mexico City (M. Juarez) 1 day a week (or more, if required)

Required Skills and Experience

7+ years of commercial‑grade web / front‑end development experience.

Strong experience in modern JavaScript, ideally TypeScript, building web applications with React

Solid skills interacting with multiple types of API formats, preferably REST and GraphQL, but additional skills with Websockets would be desired.

Contribute to the design process from gathering requirements, planning and ideating from the start of a project.

Demonstrate an understanding of user behavior and how to tailor web experiences to meet the needs of users.

Work with designers and other partners to collaborate on design & wireframing and take responsibility for delivering high‑quality implementations.

Experience with Agile development methodologies.

Strong interpersonal and organizational skills.

Demonstrable team leadership experience.

Knowledge of, and strong demonstrated interest in, global financial markets and financial products is a strong plus.

Bachelor's or Master's in Computer Science, Engineering, Physics, Math, or related work experience.

Excellent communication skills

Excellent command of written and spoken English

Bonus points

Experience working with common financial products such as Bloomberg, Symphony, or other tools commonly used in a finance context such as Excel, Salesforce, Databricks, and others.

Experience in capital markets, specifically buy‑side investment management.

Why Lab49?

Lab49 is an established partner for most financial institutions on Wall Street. You will gain exposure into a variety of environments, business domains, technologies, and people. Your ability to bring drive and creativity to the role will be the key component to success at Lab49. The broad and intense exposure to a variety of challenges accelerates your career growth, and Lab49's structure is designed to enable you to learn and grow as an engineer and consultant.