Tech Lead, Mexico City

About Lab49

Lab49 is an NYC-based award-winning specialist consultancy that creates bespoke technology in partnership with the world’s leading financial institutions. Founded in 2002 to bring Silicon Valley engineering practices to Wall Street, we’ve delivered hundreds of high-impact projects across global investment banks and buyside firms, spanning distributed systems, high performance automation, enterprise UX, cloud, and data driven platforms.

At Lab49, engineers work directly with clients to design and deliver production systems. We combine technology, design, and business to solve real problems where quality, performance, and clarity matter.

Lab49 is seeking a Tech Lead to spearhead the full stack technical implementation of digital products for our clients in the finance industry, guiding engineers and collaborating with designers and product teams to translate interactive design concepts into scalable, production-ready applications. You will report to the global head of UI engineering.

The Role

As a Tech Lead, you are a true project leader. You own the technical direction and delivery of client engagements, while multiplying the effectiveness of the engineers around you.

This is a hands on leadership role: you will design systems, write code when it matters most, guide architectural decisions, and ensure the team delivers high quality outcomes even when you are not at the keyboard.

You will work closely with client stakeholders, designers, product partners, and Lab49 leadership to ensure solutions are technically sound, aligned to business objectives, and delivered with excellence.

This is a hybrid role with 1-3 days per week at the office in central Mexico City (Insurgentes Sur).

What You’ll Be Doing

• Technical Leadership & Delivery
• Lead the design and delivery of modern, production grade web applications using contemporary UI technologies and frameworks.
• Architect solutions that balance user experience, performance, scalability, and delivery constraints.
• Set technical direction and standards, ensuring consistency, quality, and long term maintainability across the system.
• Actively manage software quality, testing strategy, and delivery velocity, even when you’re not directly writing code.

• Team Leadership & Leverage
• Lead and mentor engineers across one or more workstreams, helping them grow technically and professionally.
• Delegate effectively, manage priorities, and create clarity so the team can execute with confidence.
• Foster a culture of ownership, accountability, and continuous improvement.
• Serve as a role model for how to think, communicate, and act as a senior consultant and engineer.

• Client & Stakeholder Partnership
• Partner directly with client stakeholders as a trusted technical advisor.
• Translate business and user objectives into clear technical strategies and delivery plans.
• Communicate trade‑offs and recommendations clearly to both technical and non‑technical audiences.
• Build strong, durable client relationships that support successful delivery and future work.

• Practice Contribution
• Contribute to the growth and maturity of Lab49’s Interactive Practice by sharing expertise, shaping standards, and mentoring future leaders.
• Support business development efforts by contributing to pitches, solution design, and technical storytelling where appropriate.

What Success Looks Like

• In your first 6–12 months, success means:
• Your teams consistently deliver high quality software that meets user and client objectives.
• Engineers around you are growing, more autonomous, and more effective because of your leadership.
• Clients trust your judgment and rely on you for technical direction and clarity.
• You demonstrate strong ownership of outcomes, not just tasks, and proactively address risks before they become issues.
• You can step back from the keyboard when needed without delivery or quality suffering.

What You Should Have

• 10+ years of experience designing and building complex, commercial grade software systems.
• 5+ years leading Agile teams or acting in a technical leadership role.
• Deep expertise in JavaScript/TypeScript and React (7+ years of experience)
• Strong understanding of end-to-end web application architecture, APIs, data flow, and performance considerations.
• Solid grasp of SDLC practices, CI/CD, automated testing strategies, and quality management.
• Strong written and verbal English skills (C1+ is a must)
• Proven experience working directly with clients in consulting, financial services, or similarly complex environments.
• Excellent communication skills and the ability to influence technical and non‑technical stakeholders

Bonus Points

• Backend engineering experience with .NET (preferred), Java, or Python.
• Experience with cloud platforms such as Azure (preferred) or AWS
• Experience working with financial products, platforms, or data intensive systems.
• Demonstrated involvement in community building, mentoring, or internal practice leadership.

Why Lab49?

At Lab49, you’ll work on complex, meaningful problems with talented engineers, designers, and consultants. You’ll gain broad exposure to technologies, business domains, and client environments as you grow your career.

We value curiosity, judgment, and ownership. If you care about quality, enjoy helping others succeed, and want your work to have real impact, Lab49 is a place where you can thrive.