Hello, I'm

Tiago Eira

Senior Software Developer & Tech Lead

Know more

Profile

About me

I'm a senior software developer & tech lead based in Lisbon, Portugal, specialised in web applications. I bring a problem-solving mindset and a strong focus on delivering the right product for each customer.

I love challenges, thoughtful engineering, and learning new things.

We have to stay curious, don't we?

See my career experience
Portrait of Tiago Eira

Career

Experience

More than a decade building web products, leading teams, and turning complex requirements into maintainable software.

2025 — Present

Zizr

TypeScriptReactGraphQLRESTReact RouterShopify PolarisCloudflare WorkersAzure
  • Work as the primary frontend/product engineer alongside the CTO, owning architecture and implementation across customer-facing Shopify applications and internal retailer tooling
  • Develop and maintain public Shopify App Store applications using React, TypeScript and Node.js, integrating with Shopify APIs, App Bridge, Polaris and webhooks.
  • Own the full app distribution lifecycle, including configuration, OAuth and permissions, Shopify Partner setup, App Store submissions, review feedback, release preparation and ongoing updates.
  • Build internal tools for retailer analytics and targeted email-campaign management
  • Integrate AI coding agents into development workflows to accelerate implementation, iteration and time to market

2024 — 2025

designenlassen

TypeScriptReactNode.jsNext JSREST APIAWSFigma
  • Modernised a German design-services marketplace, restructuring the platform and migrating its PHP frontend to React with Next.js.
  • Led the development team and reviewed code to maintain quality, consistency and maintainability.
  • Contributed to technical direction and coordinated development priorities across the team.

2021 — 2024

additiv

TypeScriptReactMicro-frontendsbit.devREST APIAzure
  • Migrated a React wealth-management application to a micro-frontend architecture using Bit.
  • Led the frontend development team, reviewed code and supported engineers with technical guidance.
  • Supported hiring through CV screening and technical interviews.
  • Built mortgage and credit applications for the Austrian market.
  • Worked across frontend architecture, delivery and team coordination in a complex financial-services environment.

2019 — 2021

Insparya

JavaScriptReactNode.jsPHPMySQLREST APIAndroidiOSAWS
  • Built a React affiliate-management application that reduced reporting effort for customer-care and sales teams.
  • Enhanced mobile applications and resolved recurring bugs, improving reliability and user experience.
  • Delivered online appointment scheduling and improved website performance and usability.

2018 — 2019

Tekever

PHPJavaScriptReactMySQLCSSREST APIGCP
  • Built healthcare applications, integrated REST APIs, coordinated delivery with the client and managed Google Cloud Platform resources.

2017 — 2018

Smartlinks

PHPJavaScriptReactMySQLCSSREST API
  • Built internal React tooling, performance-focused web applications, custom WordPress solutions and e-commerce integrations across WooCommerce, OpenCart and Magento.

2016 — 2017

DevBox

PHPJavaScriptMySQLCSSCodeIgniterREST APIAngularIonic
  • Developed simple, client-friendly content-management systems.
  • Integrated REST APIs and built e-commerce remarketing web applications.

2015 — 2016

Quinta Digital

JavaScriptPHPMySQLCSS
  • Developed responsive websites and JavaScript features.
  • Optimised databases and created WordPress plugins and custom themes.

Contact

Interested in working together?

Let's talk about the product and how I can help.

Let's talk