Senior Platform Engineer

Sydecar is on a mission to transform the world of private markets. Our goal is to make these markets more accessible transparent and liquid and were achieving this by revolutionizing the way investment vehicles are created and executed.

At Sydecar were not just a platform; were a trusted partner in venture capital. Were dedicated to simplifying and standardizing the private investing experience empowering capital allocators to discover and support visionary entrepreneurs who are shaping the future.

Our platform is designed with ease and efficiency in mind. We take care of all the behind-the-scenes tasks from automating banking ensuring compliance handling contracts managing taxes to streamlining reporting. This leaves investors the freedom to concentrate on what matters most: making valuable deals and nurturing meaningful relationships.

Join us at Sydecar as we lead the charge in revolutionizing private investing.

The Platform Team owns the shared foundations developer productivity core services and infrastructure release and test automation and security that lets all of engineering ship safer faster and at scale. Were a multiplier: we build paved roads and enable product teams not product features.

As a Senior Platform Engineer youll build the systems and tooling that raise the floor for every engineer at Sydecar. Youll join a collaborative high-trust team that values ownership thoughtful execution and a sustainable pace. Your work faster pipelines reliable infrastructure safer releases and a stronger security posture will be felt across the entire engineering organization. This role suits an engineer who is energized by force-multiplying others and treats internal teams as customers.

This is a hybrid role based in San Francisco or New York City with in-office attendance of two to three days per week.

• Build and improve the internal developer platform CI/CD pipelines build/deploy automation and local and preview environments creating a golden path that helps every engineer ship quickly and safely.

• Design operate and scale core shared services and cloud infrastructure as code (Terraform) with strong reliability observability and cost efficiency.

• Advance release automation and test automation so shipping to production is routine and low-risk with safe rollout patterns and easy rollbacks.

• Strengthen the platforms security posture and help build a distributed security practice across the engineering org.

• Partner with product teams as an enabler set standards and interfaces and co-build where teams share an interest or have a timely dependency while keeping the platform focused on general-purpose foundations rather than product-specific work.

• Lead projects from concept through deployment balancing speed with scalability.

• Mentor engineers participate in architecture reviews and help shape the platform roadmap.

• Collaborate closely with engineering product design and operations.

• At least 5 years of software or platform engineering experience in modern languages (TypeScript/ a plus).

• Depth in one or more platform areas: CI/CD and developer tooling; cloud infrastructure and reliability (infrastructure-as-code observability SLOs on-call); release engineering and test automation; or application/infrastructure security.

• A track record of measurably improving developer velocity system reliability or release safety at scale.

• Demonstrated experience leveraging agentic / AI-assisted software development workflows.

• Strong problem-solver for edge cases and system scaling with an ownership mentality and a bias toward paved roads over gates.

• Excellent collaborator and communicator with an enablement mindset you treat internal teams as customers and help others move faster.

• Fintech experience (payments compliance or regulated environments).

• Experience building internal developer platforms or developer-experience tooling.

• Terraform and GCP familiarity; observability tooling (logging metrics tracing).

• Security experience OWASP-style practices secrets management dependency/vulnerability scanning or AppSec.

• Exposure to NestJS Prisma PostgreSQL and Playwright / React Testing Library.

• Bachelors degree in Computer Science or a related field.

• Frontend: TypeScript and React (mono-repo)

• Backend: TypeScript NestJS Prisma

• Database: PostgreSQL

• Testing: Jest React Testing Library Playwright

• Design: Figma

• Infrastructure: Terraform (IaC)

Our values are important to the way we live and work at Sydecar. They guide our priorities behaviors and interactions.

Be Committed

As a team we rise to meet challenges and recognize that we become stronger and develop character when facing adversity.

Be Excellent

We measure our success not just by what we achieve but by how we achieve itthrough integrity creativity elegance and a commitment to continuous improvement. Excellence is not just doing things wellits looking for ways to do them better.

Be Humble

Humility is our key to personal and professional growth. We appreciate that great ideas can come from anywhere regardless of seniority pedigree or experience. We care more about collective outcomes than who gets credit or who does what. We try to not let our ego cloud our judgment.

Win Together

Winning is no accident. It is the result of collective hard work perseverance sacrifice and most of all loving what we do. Winning requires that we give extrasometimes winning calls for late nights or extra effort and we show up for clients and each other with urgency and heart. While excellence is a journey winning is a destination.

Sydecar is committed to the principle of equal employment opportunity for all employees and to providing employees with a work environment free of discrimination and harassment. All employment decisions at Sydecar are based on business needs job requirements and individual qualifications without regard to race color religion or belief national social or ethnic origin sex (including pregnancy) age physical mental or sensory disability HIV Status sexual orientation gender identity and/or expression marital civil union or domestic partnership status past or present military service family medical history or genetic information family or parental status or any other status protected by the laws or regulations in the locations where we operate. Sydecar will not tolerate discrimination or harassment based on any of these characteristics. Sydecar encourages applicants of all ages.

Required Experience:

Senior IC