Senior Back End Engineer (Platform)

Altruist

San Francisco, United States Posted September 16, 2026

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Remote Full-time Senior
Salary Range

$200,000 - $240,000

Job Description

Join Altruist, a fast-growing fintech company, as a Senior Back End Engineer. In this role, you will develop and scale robust backend systems, create tooling for all product teams, and collaborate with engineering leadership and cross-functional teams. You will design and build RESTful backend services using Java, Spring Boot, and Postgres, and implement architectures for distributed and resilient systems in AWS and Kubernetes. You will also mentor teams in secure coding practices and employ automated testing for high-quality code.

  • Design, build, and scale RESTful backend services using Java, Spring Boot, and Postgres.
  • Implement architectures to create highly distributed and resilient systems in our AWS and Kubernetes based environment.
  • Mentor and guide teams in implementing secure coding practices to ensure code is both performant and resilient against security vulnerabilities.
  • Experience - 3+ years of experience building scalable backend services at a B2B financial services, fintech, or SaaS organization
  • Expertise in microservices architecture and distributed systems
  • Proficiency with Java, Spring Boot, and REST APIs
  • Strong knowledge of SQL (Postgres, MySQL)
  • Understand the importance of performant and reliable systems
  • Familiarity with containerization and orchestration tools: Docker, Kubernetes and Helm
  • Creative problem solving - Identifying the problem is simply not enough. You’re instinctually creative with your approach in finding solutions to roadblocks
  • Technical aptitude - You’re technologically savvy and can easily get up to speed on modern tech stacks (i.e. Kubernetes, Kafka, Temporal, and Snowflake)
  • Ownership - The pride you put into every aspect of your work is unparalleled and undeniable
  • Education - Ideally looking for a B.A. / B.S. degree in relevant fields such as Computer Science or Software Engineering but experience and understanding are just as important
  • Resilience - We’re inspired by your unwavering determination to achieve success, no matter the adversity you face along the way
  • Assurance - Your confidence is brilliant, yet ego-less. You possess a strong knowledge base, the ability to discover the unknown, and are open to differing perspectives
  • Superb communication - Intentional dialogue is a superpower. You listen as well as you share your perspective with others
  • If you’re excited about this role, but your past experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles
  • Expertise with AI (Claude) best practices
  • Experience with cloud infrastructure, particularly AWS
  • Practiced Continuous Integration/Continuous Delivery, pipelines in Gitlab a plus
  • Familiarity with tooling such as Debezium, Temporal, and Open Telemetry
  • Knowledge of brokerage platforms and financial services industry
Required Skills
collaboration leadership cross-functional collaboration REST API Java Spring Spring Boot PostgreSQL Amazon Web Services Kubernetes testing microservices distributed systems SQL MySQL Docker
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