Senior Software Developer - Backend

Job Summary:

We're looking for a Senior Software Developer - Backend, who is curious, ambitious, and eager to make an impact. You'll join a team building cloud-native systems that power our global operations, and you'll have the opportunity to shape how we evolve our platform. Our stack is .NET based, but we care more about your engineering fundamentals and your drive to learn than checking boxes on specific technologies.

If you've built great things in Java, Go, Python, Node, or any other stack and want to grow into .NET, we want to talk to you. Core Duties Design and build scalable APIs and backend services Model complex business domains and optimize database performance Architect integrations with third-party systems (ERP, payments, tax services) Implement event-driven and message-based architectures Write clean, testable code and champion engineering best practices Collaborate across teams to deliver features that impact our global dealer network Troubleshoot production systems and drive performance improvements Mentor teammates and contribute to technical decision-making Implement state management for complex multi-step processes Create responsive designs that work seamlessly across devices Basic Qualifications 5+ years building backend systems in production environments Strong fundamentals in any modern language (C#, Java, Go, Python, Type Script, etc.)

? Deep experience designing and building REST APIs Solid understanding of relational databases, query optimization, and data modeling

Experience with distributed systems concepts: service bus, message queues, caching, eventual consistency Familiarity with cloud platforms (Azure, AWS, or GCP) A track record of shipping software and solving hard problems

Preferred Experience

Experience with Elasticsearch or similar search technologies Exposure to AI/ML powered search, vector databases, or semantic search ? Experience building fault tolerant systems (retry policies, circuit breakers, graceful degradation) Background in B2B SaaS or enterprise platforms

Experience with multi region deployments and globally distributed systems

Experience with ERP integrations (Net Suite, SAP, etc.) Familiarity with real time systems (Web Sockets, Signal

R, etc.) Observability and monitoring experience (distributed tracing, structured logging) Vaco by Highspring values a diverse workplace and strongly encourages women, people of color, LGBTQ+ individuals, people with disabilities, members of ethnic minorities, foreign-born residents, and veterans to apply. EEO Notice Vaco by Highspring is an Equal Opportunity Employer and does not discriminate against any employee or applicant for employment because of race (including but not limited to traits historically associated with race such as hair texture and hair style), color, sex (includes pregnancy or related conditions), religion or creed, national origin, citizenship, age, disability, status as a veteran, union membership, ethnicity, gender, gender identity, gender expression, sexual orientation, marital status, political affiliation, or any other protected characteristics as required by federal, state or local law.

Vaco by Highspring and its parents, affiliates, and subsidiaries are committed to the full inclusion of all qualified individuals. As part of this commitment, Vaco by Highspring and its parents, affiliates, and subsidiaries will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact  .

Vaco by Highspring also wants all applicants to know their rights that workplace discrimination is illegal. By submitting to this position, you agree that you will be giving Vaco by Highspring the exclusive right to present your as a candidate for the foregoing employment opportunity. You further agree that you have represented information about yourself accurately and have not affirmatively misrepresented your qualifications.

You also agree to maintain as confidential, to the fullest…