Senior Frontend Engineer

Kitchener, Ontario, Canada

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Kitchener, Ontario, Canada

We shaped the earliest forms of ad tech, and we’re looking for the technical expertise to help shape its future. Our customers have unique problems that can only be solved at internet scale, and that’s where the technical skills of our team make a real difference.

Our exchange handles over 350 billion requests every day (for comparison Google serves an estimated 9 billion searches a day), all running in our own global data centers. Every member of our technology team has an enormous amount of autonomy in building and managing our systems to support and enable our growing level of scale. Through the transparency of our technology, dedication to innovation and integrity, and long-standing customer relationships, we lead through change.

What’s it like to work at Index?

We have more than 550 Indexers around the globe dedicated to building a safe and transparent marketplace that provides a trusted experience for consumers.

Index is an exciting and fast-paced place to work. We’re built on our values of change, support, learning and teaching, trust, and intention. We pride ourselves on our independence and openness, not only in our technology, but in our teams, too. Our diverse and inclusive culture celebrates how we can leverage our unique differences to help drive Index forward.

Our culture of success is truly supportive and collaborative. In working together across our teams, we’re continually investing in the people and technology to solve the industry’s most complex problems. As we extend the promise of ad tech to every channel, we’re looking for talented engineers to help advance Index, and the industry, forward.

Are you ready to join the programmatic evolution?

Index Exchange funds the open web. Content and journalism across the internet are funded through advertising, and we are the engine that helps to make that happen transparently, safely and efficiently. Handling hundreds of billions of auctions per day within milliseconds requires an intense understanding of the exchange and the ecosystem that we live in.

Our business is growing significantly every year and is poised to grow even faster. Our people and our platforms are the foundation and enabler of that growth. We are significantly expanding our technology teams, and are looking for technologists with a passion for high performance software development, and a drive to deliver software products and platforms that enable and empower industries at a global scale.

About The Role:

As a Senior Frontend Engineer you will join our team to work on tools that will increase efficiency for our publishers. You’ll have the opportunity to design and build user experiences that enable our customers to engage through the exchange. The ideal candidate for this role is an experienced engineer who is eager to demonstrate their technical vision and expertise by offering guidance and mentorship and has the ability to drive projects to completion.

What We’re Looking For:

  • “Indexness”: Be a capable leader in demonstrating the Index values and sets an example for others in their teams and across the division.
  • Embrace it. Lead it: A Senior Frontend Engineer not only plans for change but looks for opportunities where change would bring long term benefits, even at short term cost.  They raise issues, propose solutions and work with others to mitigate the impact.  They should work with their team to reinforce a need to remain agile and plan for change.
  • Support Each Other. It Matters: A Senior Frontend Engineer is someone who is regularly depended on by many people.  They actively work to support their team for coverage and expertise. They are relied upon by leaders and Product for guidance.  They work to set a team culture where supporting each other truly matters.
  • Learn it. Teach it: A Senior Frontend Engineer becomes an expert in various areas, and has a big impact by empowering others.  They work to identify gaps in knowledge and training and bridge that gap by running knowledge transfers, presenting in front of technical and non-technical audiences, and setting an example for others to follow.
  • Build Real Trust. It Doesn't Just Happen: A Senior Frontend Engineer has built great knowledge of our systems and technologies, and uses that knowledge to provide guidance. They take great care to ensure their information is accurate.  They use this combined with experience to provide forecasts and commitments on large projects and work to deliver on them, raising issues as they surface.
  • Be Intentional. Launching is Fun.  It’s the Landing that counts: A Senior Frontend Engineer takes ownership of large projects and components. They work with Product and leaders to set goals and follow through with data to validate outcomes.  They work towards completion, ensuring serviceability, telemetry and high quality are part of their definitions of done.

Here’s What You’ll be Doing:

  • Embodies cross team collaboration and extensively working with other teams across Index to achieve the team’s goals
  • Contributes to standards, adheres to laid out processes and strives towards continuous improvement of engineering as a whole
  • Takes ownership of their work, works with peers in their division to avoid silos and leads by example
  • Applies technology principles and design techniques to complex systems
  • Participates in review of designs/code of other engineers and provide suggestions for improvements

Here's What You Need:

  • Bachelor degree in Computer Science, Computer/Electrical Engineering or related field
  • Minimum of 3 years of experience with TypeScript and web-based development frameworks such as Angular, React or Vue
  • Design patterns and web-based development. 
  • Experience in one or more of the following are beneficial
    • Languages: Typescript, Angular, Golang
    • Tools and Technologies: K8s, Cypress
    • Methodologies: SOLID principles, microservice architecture
  • Experience working with Linux environments, resilient and scalable platforms is an asset
  • Excellent problem-solving skills, the ability to think differently, and an understanding that compromise, negotiation and practicality are important qualities
  • A desire to work with and learn from the people around you – we greatly value people and interactions
  • Experienced in designing and leading the completion of software projects
  • Demonstrable expertise in API design/development is beneficial. Experience in designing, developing and testing high quality APIs and Web applications

Why You’ll Love Working Here:

  • Comprehensive health, dental, and vision plans at no cost to you
  • Time off and flexible work schedules
  • Retirement plan with a 5% company match
  • Stock options and equity packages
  • Generous parental leave
  • Monthly wellness stipend plus fitness discounts and quarterly wellness group activities
  • Community engagement opportunities and donation-matching program
  • Annual virtual company retreats and regular community-led team events
  • One day off per year to volunteer 
  • A workplace that supports a diverse, equitable, and inclusive environment – learn more here


Index Exchange is aware that there have been recent scams directed toward candidates regarding job interviews and offers.

Please be vigilant and do not accept interview requests, job offers, or other hiring-related documents from anyone other than our dedicated recruitment team, from the domain of Our interview process consists of several steps, including phone screens and video interviews. We do not conduct interviews via an email questionnaire or request money at any point in the process.

We remain dedicated to resolving this matter and we appreciate your support.

Equal employment opportunity

At Index Exchange, we believe that successful products are built by teams just as diverse as the audience who uses them. As such, we are committed to equal employment opportunities. We celebrate diversity of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or expression, or veteran status. Additionally, we realize that diversity is deeper than any status or classification—diversity is the human experience. For those who show grit, passion, and humility—Index will welcome you.

Accessibility for applicants with disabilities

Index Exchange is committed to working with and providing access and reasonable accommodations to applicants with disabilities. Please let us know if you’d like to request a reasonable accommodation.

Index Everywhere, Index Anywhere

Our corporate headquarters are in Toronto, with major offices in New York, Montreal, Kitchener, London, San Francisco, and many other global cities. As a major global advertising exchange, we are committed to operating as a tightly knit global team and embracing and empowering talent wherever our colleagues may be.