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Added 2 mins ago
BS
Validation Engineer
Bartech Staffing
Windsor, ON
- $34 to $35.64 CAD / hour
- Contract
As a Validation Engineer with Bartech Staffing, you will be working through an established and respected staffing organization with over 40 years of serving as a trusted partner to our…
Added 2 mins ago
RT
Generative AI Engineer (Python and Angular)
Rang Technologies Inc
Mississauga, ON
- Full-time
Participate in code reviews troubleshooting and performance optimization
Added 2 mins ago
H
Electrical Engineer
Hays
Montreal, QC
- Contract
We are seeking an experienced Electrical Engineer to provide technical expertise and oversee electrical engineering initiatives related to rolling stock, transportation systems, and fleet…
Added 2 mins ago
KC
Senior Mechanical Engineer - Hydro
Klohn Crippen Berger
Vancouver, BC
- Other
Klohn Crippen Berger (KCB) is seeking an experienced Senior Mechanical Engineer to join our Power and Transportation Group. This leadership role is ideal for a seasoned engineer with 15+…
Added 2 mins ago
ES
Senior AI Engineer
Epsilon Solutions Ltd.
Montreal, QC
- Full-time
Senior AI Engineer - Copilot / ChatGPT / Grok / Claude / Gemini
Added 2 mins ago
L
Principal AI/ML Engineer
lululemon
Vancouver, BC
- Full-time
lululemon is an innovative performance apparel company for yoga, running, training, and other athletic pursuits. Setting the bar in technical fabrics and functional design, we create…
Added 17 mins ago
Manufacturing & Process Engineer - Senior PMO / Change & Transformation Lead
Capgemini
Montreal, QC
Added 17 mins ago
Software Development Engineer, AFT Sortation Material Flow
Amazon
Toronto, ON
…and make decisions in real-time? As a Software Development Engineer, you will be responsible to develop our next generation of systems, work that includes managing sorters and workcells…
Added 17 mins ago
H
Electrical Engineer
HDR
Toronto, ON
- Full-time
…the spaces where people work, connect, and thrive. From high-performance data centers driving the future of AI to dynamic commercial environments, your work will directly support…
Added 17 mins ago
H
Electrical Engineer
HDR
Toronto, ON
- Full-time
…the spaces where people work, connect, and thrive. From high-performance data centers driving the future of AI to dynamic commercial environments, your work will directly support…
Added 17 mins ago
GD
Intermediate Systems Engineer – ISTAR
General Dynamics Missions System International
Ottawa, ON
- $80,000 to $88,000 CAD / year
- Full-time
We are currently seeking an Intermediate Systems Engineer to join our Land Command, Control, Communications, Computers, Cyber, Intelligence, Surveillance and Reconnaissance (LC5ISR) team,…
Added 17 mins ago
GD
Working Level Systems Engineer – ISTAR
General Dynamics Missions System International
Ottawa, ON
- $88,000 to $105,000 CAD / year
- Full-time
We are currently seeking an experienced Systems Engineer to join our Land Command, Control, Communications, Computers, Cyber, Intelligence, Surveillance and Reconnaissance (LC5ISR) team,…
Added 32 mins ago
CO
Senior Water Resources Engineer
City of Pickering
Canada
- Full-time
The City of Pickering is seeking a dedicated and motivated individual to join our team in the role of Senior Water Resources Engineer.
Added 32 mins ago
TI
Machine Learning Engineer - Senior
TekStaff IT Solutions
Toronto, ON
- Contract
The Senior Machine Learning Engineer will deploy, integrate, monitor, and operationalize AI and machine-learning solutions using modern MLOps practices. The role will establish reusable…
Added 32 mins ago
KG
Project Manager - Municipal Infrastructure
KGS Group
Mississauga, ON
- Full-time
Manage project financial performance, including budget tracking, forecasting, review and approval of project-related time and expenses, invoicing, and accounts receivable
Added 32 mins ago
Z
Validation Engineer (Automotive OBD)
Zobility
Windsor, ON
- Contract
The Validation Engineer's responsibilities include performing verification and validation of automotive systems to meet federally regulated guidelines for software performance (OBD), safety…
Added 32 mins ago
R
GCP Application Support Engineer
Raise
Toronto, ON · North York, ON
- Full-time
The GCP Application Support Engineer in this role will join a high-impact team supporting mission-critical enterprise applications within the GCP ecosystem. In this role, you will be…
Added 32 mins ago
CM
Mechanical Engineering SME (Subject Matter Expert), Capital Projects
Cyclic Materials
Toronto, ON
- Full-time
…with and holding external teams accountable for quality and performance. The Lead provides final technical review and sign-off, bringing deep expertise and experience to the…
Added 32 mins ago
C
ETL Data Lead (Hybrid)
Cognizant
Halifax, NS
- Full-time
We are seeking an experienced ETL/ELT Engineer to design, develop, and maintain robust data pipelines using Informatica IICS and Snowflake. The ideal candidate will have strong SQL skills,…
Added 32 mins ago
ES
Artificial Intelligence Engineer
Enterprise Solutions Inc.
Toronto, ON
- Contract
Databricks Certified Generative AI Engineer Associate
Added 32 mins ago
T
Data Science Developer - Senior/Senior Data Scientist / ML Engineer
ThoughtStorm
Toronto, ON
- Contract
Strong knowledge of Model Performance Evaluation, Bias-Variance, Overfitting, and Predictive Model Optimization.
Added 32 mins ago
GD
Intermediate Systems Engineer – ISTAR
General Dynamics Mission Systems–Canada
Ottawa, ON
- $80,000 to $88,000 CAD / year
- Full-time
We are currently seeking an Intermediate Systems Engineer to join our Land Command, Control, Communications, Computers, Cyber, Intelligence, Surveillance and Reconnaissance (LC5ISR) team,…
Added 32 mins ago
C
Specialist, Hydrogen Locomotive Field Testing
CPKC
Calgary, AB
- Full-time
…operations, and maintenance teams, you'll troubleshoot, analyze performance data, oversee testing activities, and help bring innovative zero-emission technology from concept to reality.…
Added 32 mins ago
GD
Working Level Systems Engineer – ISTAR
General Dynamics Mission Systems–Canada
Ottawa, ON
- $88,000 to $105,000 CAD / year
- Full-time
We are currently seeking an experienced Systems Engineer to join our Land Command, Control, Communications, Computers, Cyber, Intelligence, Surveillance and Reconnaissance (LC5ISR) team,…
Added 33 mins ago
SL
ServiceNow Associate Software Engineer
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Waterloo King
- Full-time
As a ServiceNow Associate Software Engineer in our Corporate IT division, you'll be at the heart of designing, developing, and supporting business-critical applications that power Sun…

ACV Auctions

Software Engineer IV, Viper Engineering

Toronto, ON, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Dec 4, 2026
Posting language: English
Posted: Nov 4, 2026

Original job description

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:

ACV Auctions is looking for a Software Engineer to join our ACV Retail - Viper Teams and work on our SaaS Product. The position will focus on backend development & maintenance of Go Lang features & services hosted in AWS and utilizing Postgres and NOSQL.

The ideal candidate has a strong background and proven track record of architecting and designing enterprise applications in Go Lang and Node.JS, a penchant for high quality code, and a team minded approach to development.

What you will do:

Develop Services using modern language stacks like Go Lang , Postgres and NoSQL databases like mongo, SQL Server is nice to have.
Design and build complex systems that can scale rapidly with little maintenance, with a strong focus on reliability, performance, and operational excellence.
Design, build, and maintain Kafka-based event processing services, including consuming, deserializing, validating, persisting, and reacting to events to drive downstream workflows.
Design and implement effective service/product interfaces, including third-party API integrations and extensible handler patterns for new 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
Own larger, complex initiatives end-to-end - from discovery and requirements through delivery and production support - driving alignment across engineering and business stakeholders.
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.
Lead technical design and architecture decisions across multiple systems/services, and help establish standards, patterns, and best practices.
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.
Provide technical leadership through mentoring, coaching, and strong design/code review feedback, helping raise overall engineering quality.
Develop roadmaps and prioritize technical debt to effectively plan features and work, balancing delivery with long-term platform health.
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.
Perform additional duties as assigned.

What you will need:

Ability to read, write, speak and understand English.
BS degree in Computer Science or a related technical discipline or equivalent practical experience preferred
Minimum 8 years of experience building SaaS web applications using Go Lang and Node.JS and/or C# nice to have (12+ years desirable).
Strong experience maintaining and extending an existing codebase, adapting to pre-existing patterns and tracing the code’s path of execution across services.
Strong experience integrating 3rd-party APIs, implementing authentication & authorization and developing asynchronous data flows.
Strong experience publishing and consuming Kafka events, including designing event contracts, building reliable event-driven workflows, and handling ordering, retries, idempotency, and failure recovery.
Strong experience developing unit and integration-tests, and setting expectations for test strategy and coverage.
Strong experience integrating with cloud service (AWS), specifically: SQS, SNS, S3, ECS, EKS, Lambda, ElasticSearch, Docker / Containers.
Strong experience working with Docker and Kubernetes, including containerization, orchestration (k8s) and serverless deployment scenarios.
Strong experience with build & deployment automation (CI/CD) and release workflows.
Strong SQL programming and data-layer development experience (schema design, query performance, indexing, and data reliability patterns).
Minimum 8 years of experience working with continuous integration and build tools.
Expert in version control systems and branching/release strategies.
Expert in software engineering tooling and mentors and drives adoption for new tools and tooling standards.
Expert in release, builds, testing and the entirety of the SDLC.
Expert at debugging distributed systems using distributed tracing and other common tools; able to lead root-cause analysis and preventative improvements.
Top notch communication skills, including clearly communicating tradeoffs and aligning stakeholders.
Experience architecting and designing systems from the ground up, including making pragmatic decisions for scalability, reliability, and maintainability.
Experience working with a geographically dispersed team across multiple timezones, including leading technical alignment and delivery across teams.

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.

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More about this job

Responsibilities

Design, build, and maintain scalable backend services and event-driven workflows using Go, Kafka, AWS, and relational and NoSQL databases, while owning complex initiatives from discovery through production support. Lead architecture and technical standards, improve reliability and operational maturity, and support engineering quality through testing, code reviews, documentation, mentoring, and roadmap planning.

Requirements

The role seeks at least 8 years of SaaS application development experience, with strong expertise in Go and Node.js, distributed systems, Kafka, AWS, SQL, containers, CI/CD, and testing. A computer science or related bachelor's degree is preferred, or equivalent practical experience; candidates should also demonstrate technical leadership, system design, communication, and experience coordinating across distributed teams.

Skills

Go
Node.js
AWS
PostgreSQL
NoSQL
Kafka
SQL
Docker
Kubernetes
Microservices Architecture
API Integration
Event-Driven Systems
CI/CD
Distributed Systems Debugging
System Design
Technical Leadership

Benefits

Company-Sponsored Healthcare
Dental Insurance
Vision Insurance
Life and AD&D Insurance
Short-Term Disability Insurance
Long-Term Disability Insurance
Critical Illness Insurance
Supplemental Life and AD&D Insurance
Parental Leave Top-Up Pay
Vacation
Employee Stock Purchase Program
Company Stock Opportunities
Retirement Planning Through RRSP

Visa sponsorship

Not detected in the job text

Keywords

Go
Node.js
C#
AWS
PostgreSQL
NoSQL
MongoDB
SQL Server
Kafka
SQS
SNS
S3
ECS
EKS
Lambda
Elasticsearch
Docker
Kubernetes
CI/CD
SaaS
Event-Driven Architecture
Third-Party API Integration
Authentication and Authorization
Schema Design
Query Optimization
Distributed Tracing
Unit Testing
Integration Testing
Agile
Automotive Digital Marketplace

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