Software Engineer IV, Viper Engineering

Responsibilities

Develop and maintain backend services using Go Lang and Node.JS while designing scalable, high-performance systems within an AWS environment. Lead technical architecture decisions, mentor team members, and ensure operational excellence through robust testing and incident management.

Requirements

Requires a minimum of 8 years of experience in SaaS web application development with proficiency in Go Lang, Node.JS, and cloud-based infrastructure. Candidates must demonstrate strong expertise in distributed systems, event-driven architectures using Kafka, and SQL database management.

Skills

• Go Lang
• Node.JS
• AWS
• Postgres
• NoSQL
• Kafka
• Docker
• Kubernetes
• CI/CD
• SQL
• System architecture
• Distributed systems
• API integration
• Unit testing
• Integration testing
• Cloud services

Benefits

• Medical plans
• Short-term disability
• Long-term disability
• Life insurance
• Dental insurance
• Vision insurance
• Supplemental life insurance
• Legal protection
• ID protection
• Accident insurance
• Critical illness insurance
• Paid time off
• Uncapped vacation days
• Paid sick days
• Paid company holidays
• Floating holidays
• Parental leave
• Bereavement leave
• Jury duty leave
• Voting leave
• Employee stock purchase program
• 401(k) retirement planning

About this role

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:
Multiple medical plans including a high deductible, low cost health plan
Company-sponsored (paid) Short-Term Disability, Long-Term Disability, and Life Insurance
Comprehensive optional benefits such as Dental, Vision, Supplemental Life/AD&D, Legal/ID Protection, and Accident and Critical Illness Insurance
Generous paid time off options, including uncapped vacation days, the greater of 3 paid sick days or in accordance with the applicable state or local paid sick leave law, 6 paid company holidays, 2 floating holidays, parental leave, bereavement leave, jury duty leave, voting leave, and other forms of paid leave as required by applicable law or regulation
Employee Stock Purchase Program with additional opportunities to earn stock in the Company
Retirement planning through the Company’s 401(k)
Who we are looking for:
ACV Auctions is looking for a Software Engineer to join our MAX Engineering team and work on our SaaS Product, MAX Digital. 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 ...

About ACV

Software Development · 1,001-5,000 employees · headquartered in Buffalo, New York · founded 2014