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Application Developer Technical Lead
Cencora
Conshohocken, PA
…Angular CLI; ASP.NET, MVC, architecting and building RESTful API; Entity Framework and Entity Framework Core (migrations, performance profiling, LINQ optimization); SQL Server skills to…
Added just now
SM
Gravitee API Platform Automation Engineer
Select Minds LLC
Dallas, TX
- $130,000 to $140,000 USD / year
Job Title: Gravitee & API Platform Automation Engineer
Added 1 min ago
Software Engineer
Edgewater Federal Solutions, Inc.
Oak Ridge, TN
Knowledge of API development, integration, and consumption across multiple platforms.
Added 1 min ago
DOT NET Full Stack Developer
S R INTERNATIONAL INC
Phoenix, AZ
The Arizona Department of Education is seeking an experienced .NET Full-Stack Developer to develop, enhance, troubleshoot, and maintain web applications and backend processes supporting…
Added 2 mins ago
SharePoint Developer
Koniag Government Services
Washington, DC
Koniag Government Services is seeking an experienced SharePoint Developer to join a dynamic development team supporting both established projects and building solutions from the ground up.…
Added 2 mins ago
Staff Full-stack Engineer - Shopping (Remote-eligible)
Capital One
Washington, DC
Collaborate with senior engineering and architecture leaders to define long-term platform strategy and API standards
Added 2 mins ago
Specialist Mechanical Engineer - Static Equipment
Worley
AB, CA
Deep working knowledge of ASME, API, CSA, and applicable Canadian and international codes and standards.
Added 2 mins ago
Compliance Assurance Program Manager
Meta
Washington, DC
Experience designing, operating, or assessing platform safeguards or API governance controls, such as developer access permissions and scopes, app review, data-use restrictions, rate…
Added 2 mins ago
C
Senior Mainframe CoolGen Developer
Cognizant
Washington, DC
- $55,350 to $82,000 USD / year
We are looking for an experienced Senior Mainframe CoolGen Developer to design, develop, test, enhance, and support high-volume, reliable enterprise applications built on CA Gen/CoolGen and…
Added 2 mins ago
.NET API Developer
Cognizant
Washington, DC
As a .NET API Developer , you will make an impact by designing and developing scalable, secure, and high-performing APIs and microservices that support critical banking applications. You…
Added 2 mins ago
Sr Site Reliability Engineer -Remote US
SitusAMC
Washington, DC
Implement best practices for configuring, tuning, and securing API’s/Microservices to achieve optimal performance and uptime
Added 3 mins ago
C
Senior QA Automation Engineer - Playwright & Selenium
Cognizant
Washington, DC
- $50,000 to $92,500 USD / year
…ideal candidate will have strong experience in test automation, API testing, functional validation, and data verification, with a passion for delivering high-quality software in Agile…
Added 3 mins ago
Product Manager - Technical
Intermountain Health
Washington, DC
Understanding of and experience working with API integrations , including the ability to interpret technical documentation and support data exchanges between systems.
Added 3 mins ago
Core Senior .NET Software Engineer
Evolent
Washington, DC
Deep understanding of software architecture patterns, such as microservices, event-driven architecture, and RESTful API design.
Added 5 mins ago
DD
Sr Mgr-Disney Central Data & Insights
Disney Destinations, LLC
Orlando, FL · Tampa, FL
- $134,500 to $180,400 USD / year
· Deep understanding of data warehousing, database management, API/data exchange, automation, and data integration tools
Added 5 mins ago
Associate Software Engineer – Full Stack
Empower Pharmacy
Houston, TX
API Development: Help build, test, and maintain RESTful APIs that support data exchange across systems. Follow established API design, security, and regulatory requirements, and assist with…
Added 8 mins ago
Staff Software Engineer
Natera
Remote, United States
Added 8 mins ago
Senior Software Engineer
Natera
Remote, United States
…Lambda and similar serverless patterns, SQS/SNS/EventBridge, API Gateway,…
Added 10 mins ago
Application Development Analyst
University of Buffalo
NY
Design, develop, and integrate solutions, including REST API integrations connecting the Student Information System with other campus and third-party systems
Added 12 mins ago
Java Software Engineer - Mid Level
United Services Automobile Asn
Charlotte, NC
API Design and Containerization: Proven ability to design, develop, and implement robust APIs using Spring Boot and Docker, ensuring container-based applications are scalable and secure.
Added 12 mins ago
Back-End Developer – Remote
Creative Information Technology, Inc.
VA
USDA is looking for Back-End Developer. Work schedule is Remote.
Added 12 mins ago
Staff Full-stack Engineer - Shopping (Remote-eligible)
Capital One
Frankfort, KY
Collaborate with senior engineering and architecture leaders to define long-term platform strategy and API standards
Added 12 mins ago
Sr Site Reliability Engineer -Remote US
SitusAMC
Frankfort, KY
Implement best practices for configuring, tuning, and securing API’s/Microservices to achieve optimal performance and uptime
Added 12 mins ago
C
Senior QA Automation Engineer - Playwright & Selenium
Cognizant
Frankfort, KY
- $50,000 to $92,500 USD / year
…ideal candidate will have strong experience in test automation, API testing, functional validation, and data verification, with a passion for delivering high-quality software in Agile…
Added 12 mins ago
Core Senior .NET Software Engineer
Evolent
Frankfort, KY
Deep understanding of software architecture patterns, such as microservices, event-driven architecture, and RESTful API design.

ACV Auctions

Software Engineer IV, Viper Engineering

Buffalo, NY, United States

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Job details

Posting language: English
Posted: Nov 3, 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:

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 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, skill set, location, business needs, market demands, and other factors as permitted by law.

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