Software Developer IV, Data

ACV Auctions; Toronto; On-site; CAD 120,000 - 180,000; Full time

Benefits offered by this job

Healthcare

Dental

Vision

Life/AD&D

Disability

Stock Purchase Program

RRSP

Parental Leave Top-Up

Job summary

ACV Auctions is seeking a Senior Software Developer to join the Platform Engineering group, focusing on the VIN Decoder backend. You will work with AWS Postgres, GCP BigQuery, Redis, and Python to build scalable data-driven services in a fast-paced, collaborative environment.

You will contribute to architectural decisions, implement complex systems, and drive reliability and observability across multiple cloud platforms while improving data workflows and performance.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent work experience).
• 7+ years of experience programming in Python.
• 5+ years of experience with Cloud platforms preferably AWS or GCP.
• 5+ years of experience with Terraform/Infrastructure as Code concepts.
• 5+ years work with continuous integration and build tools.
• Experience architecting and designing systems for scalability, reliability, and maintainability.
• Experience with in-memory data processing and database monitoring tools (DataDog).
• Strong experience integrating 3rd‑party APIs and asynchronous data flows.
• Proficiency in SQL and query optimization.
• Strong communication and collaboration skills in a fast-paced global team.

Responsibilities

• Contribute to the technical vision for multi-cloud infrastructure and system architecture.
• Design and build scalable, highly reliable services with focus on performance and observability.
• Implement service interfaces and third‑party API integrations.
• Develop and tune complex SQL queries and data models to support workflows.
• Collaborate with platform engineering to plan feature roll‑outs and reliability improvements.
• Lead code reviews, write tests, and document trade-offs for long‑term maintenance.
• Drive operational maturity, incident response, and on-call practices.
• Participate in agile ceremonies and manage competing priorities in a fast-paced environment.

Skills

Python

CI/CD

SQL

Communication

Agile

System architecture

Problem solving

Education

Bachelor’s degree in Computer Science or related field

Tools

Terraform

AWS

GCP

DataDog

Job description

Posted Monday, August 17, 2026 at 4:00 AM

If you are looking for a career at a dynamic company with a people-first mindset and a deep culture of growth and autonomy, ACV is the right place for you! Competitive compensation packages and learning and development opportunities, ACV has what you need to advance to the next level in your career. We will continue to raise the bar every day by investing in our people and technology to help our customers succeed. We hire people who share our passion, bring innovative ideas to the table, and enjoy a collaborative atmosphere.

Who we are:

ACV is a technology company that has revolutionized how dealers buy and sell cars online. We are transforming the automotive industry. ACV Auctions Inc. (ACV), has applied innovation and user-designed, data driven applications and solutions. We are building the most trusted and efficient digital marketplace with data solutions for sourcing, selling and managing used vehicles with transparency and comprehensive insights that were once unimaginable. We are disruptors of the industry and we want you to join us on our journey.

At ACV we focus on the Health, Physical, Financial, Social and Emotional Wellness of our Teammates and to support this we offer:

• Company Sponsored (paid) Healthcare, Dental, Vision, Life/AD&D, Short-Term and Long-Term Disability.
• Comprehensive additional optional benefits such Critical Illness and Supplemental Life/AD&D.
• All insurance benefits go into effect on your date of hire.
• Generous Parental Leave Top-Up Pay and Vacation Programs.
• Employee Stock Purchase Program with additional opportunities to earn stock in the company.
• Retirement planning through the Company’s RRSP.

Who we are looking for:

We are looking for an exceptional Senior Software Developer to join our Platform Engineering group, focusing on the VIN Decoder platform. The position will focus on backend development, AWS Postgres, GCP BigQuery, Redis, and python development.

The ideal candidate has a strong foundation in software development, database design, multi-cloud environments, and in-memory data technologies. You bring deep technical expertise in software development, demonstrate strong communication and collaboration skills, and embrace a hands‑on, problem‑solving mindset to tackle ACV’s most challenging data engineering problems. This position is ideal for an engineer that thrives in a fast‑paced, collaborative environment and is passionate about solving complex technical challenges.

If you are passionate about solving complex architectural challenges and are equally invested in developing the careers of those around you, this is the perfect opportunity.

If you are passionate about solving complex architectural challenges and are equally invested in developing the careers of those around you, this is the perfect opportunity.

What you will do:

Contribute to the technical vision for your team’s domain, making critical decisions on multi-cloud infrastructure, in-memory technologies, and overall system architecture.

Design and build complex systems that can scale rapidly with little maintenance, with a strong focus on reliability, performance, and operational excellence.

Design and implement effective service/product interfaces, including third‑party API integrations

Develop and maintain application data models, including writing and tuning complex SQL queries, optimizing indexes and performance, and designing schemas that reliably support application workflows

Collaborate with software and production engineers to design scalable services, plan feature roll‑out, and ensure high reliability and performance of our products.

Design and develop systems across all major departments including but not limited to; data, enterprise applications, and IT.

Modify and develop custom software patterns as needed to solve highly complex software problems, and clearly document tradeoffs and long‑term maintenance implications.

Be accountable for the overall performance of products and/or services within a defined area of focus, including diagnosing production issues and driving improvements.

Conduct code reviews, develop high‑quality documentation, and build robust test suites for your products (unit/integration testing), ensuring maintainable and well‑covered code.

Drive operational maturity (observability, incident response, on‑call practices, reliability goals) and lead post‑incident analysis with preventative action plans.

Handle multiple competing priorities in an agile, fast‑paced environment while maintaining strong engineering discipline and delivery quality.

Participate in on‑call rotation/production support

You will need to maintain standard Eastern Time (ET) working hours to ensure seamless collaboration with your team and direct reports

Perform additional duties as assigned.

What you will need:

Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent work experience)

Ability to read, write, speak, and understand English.

7+ years of experience programming in Python

5+ years of experience with Cloud platforms preferably in AWS or GCP

5+ years of experience with Terraform/Infrastructure as Code concepts

5+ years work with continuous integration and build tools

Experience architecting and designing systems from the ground up, including making pragmatic decisions for scalability, reliability, and maintainability.

Experience with in-memory data processing, database monitoring and diagnostic tools, preferably Data Dog.

Experience with Domain Driven Design.

Strong experience integrating 3rd‑party APIs, implementing authentication & authorization and developing asynchronous data flows.

Strong experience developing unit and integration-tests, and setting expectations for test strategy and coverage

Proficiency in SQL query writing and optimization.

Strong communication and collaboration skills, with the ability to work effectively in a fast paced global team environment.

Deep practical experience operating within and leading Agile development environments, with a strong understanding of how to run effective sprints and agile ceremonies.

#LI-AM3

Our Values

Trust & Transparency | People First | Positive Experiences | Calm Persistence | Never Settling

At ACV, we are committed to an inclusive culture in which every individual is welcomed and empowered to celebrate their true selves. We achieve this by fostering a work environment of acceptance and understanding that is free from discrimination. ACV is committed to being an equal opportunity employer regardless of sex, race, creed, color, religion, marital status, national origin, age, pregnancy, sexual orientation, gender, gender identity, gender expression, genetic information, disability, military status, status as a veteran, or any other protected characteristic. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. If you have a disability or special need that requires reasonable accommodation, please let us know.

For information on our collection and use of your personal information, please see our Privacy Notice.

No immigration or work visa sponsorship provided for this position.

Compensation

The compensation range for this position is listed in the "Job Details" section at the bottom of this posting. Please note that final compensation will be determined based upon the applicant's relevant experience, skillset, location, business needs, market demands, and other factors as permitted by law.