> Markdown version of [/jobs/ext/4003120-senior-back-end-engineer](https://www.wearedevelopers.com/jobs/ext/4003120-senior-back-end-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Back End Engineer - **Company:** Altruist Corp - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Salary:** $200,000.0 - $250,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, User Authentication, Cloud Computing, Distributed Systems, Identity and Access Management, PostgreSQL, OAuth, OpenID, Role-Based Access Control, Software Engineering, TypeScript, Web Applications, ReactJS, Spring-boot, Software Security, Database Performance, Backend, Kubernetes, Information Technology, Graphql, Data Management, Microservices - **Published:** October 29, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-back-end-engineer-san-francisco-ca--2857fb4d-8023-4476-a528-711e90c81e22 ## About the Role Wealth Management, Artificial Intelligence (AI), Financial Planning, Best Practices, Mentoring, Authentication, OAuth, Identity Data Management, Cloud Computing, Amazon Web Services (AWS), * Experience- 4+ years of software engineering experience building precise and scalable distributed systems with best engineering practices * Hands-on execution- You can own a well-defined problem end to end and drive it to production without needing close direction * Full-stack with a backend lean (a plus)- You're primarily a backend engineer but comfortable working across the stack; a core engineering background is preferred over a purely product-focused one * A track record of building, not just reviewing- You've shipped work in security, scale, or infrastructure. This is a builder role, not a Security/AppSec role: we're looking for engineers who own remediation and deliver hardened systems * Education- Ideally looking for a B.A. / B.S. degree in relevant fields such as Computer Science or similar Engineering/Mathematics degrees * Technical aptitude- You're technologically savvy and can easily get up to speed on modern tech stacks (we use Java, Spring Boot, Microservices, AWS, Postgres, Kubernetes, React.js, Typescript, GraphQL). * Domain exposure (a plus) - Fintech, payments, or other security-sensitive, highly regulated environments * Ownership- The pride you put into every aspect of your work is unparalleled and undeniable * Superb communication- Intentional dialogue is a superpower. You listen as well as you share your perspective with others * 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 * Creative problem solving- Identifying the problem is simply not enough. You're instinctually creative with your approach in finding solutions to roadblocks ## Description * Act as a leader and steward of engineering best practices, helping to mentor other engineers and develop impactful solutions * Independently take a defined problem from design through implementation and into production * Build and extend identity and access management capabilities: authentication, authorization, RBAC, and OAuth/OIDC flows * Implement improvements to our AWS and cloud infrastructure, including its security posture, configuration, and operational guardrails * Improve database performance, security, and optimization across high-volume, transactional systems * Harden APIs, services, and distributed systems against failure and abuse * Contribute to production reliability: participate in incident response and remediation, fix root causes, and add the observability needed to catch issues early * Partner with our Security/CISO team to turn identified gaps into durable engineering fixes you design and ship * Analyze and solve complex problems spanning multiple user personas and workflows * Focus on building and scaling services and user-facing web applications that are customer-centric, performant, and secure