Senior Backend Engineer
Orchestra Bio, Inc
About Orchestra Orchestra helps companies navigate the journey from discovery to medicine by connecting science, operations, and finance in an intelligent platform. We're on a mission to make every R&D dollar count. Developing new medicines is a societal imperative to improve human health and reduce medical costs. Brilliant science needs effective management to develop breakthrough medicines that reach patients. We aim to bring the same level of sophistication to scientific development that modern tools brought to software development. While software teams can ship updates daily, R&D organizations face unique challenges: years long development cycles, complex interdependencies, and high-stakes decisions that can make or break billion dollar programs. Founded by early Benchling leaders, we just emerged from stealth with $20M in funding from 8VC, Andreessen Horowitz, Insight Partners, Definition, and Haystack to transform how biotech companies operate. Our customers are working on society's most important challenges, including neurodegeneration, cancer, metabolic disease, and biomanufacturing. We're looking for engineers who are excited about building software that helps scientific organizations operate more effectively. The Role We're seeking a Senior Backend Engineer to join our growing team in San Francisco. You'll work with our team to create complex but intuitive products to manage R&D. Challenges You'll Tackle Complex Decision Making : Build interactive tools that help organizations model different paths to market for their discoveries, assessing complex trade offs between time, money, and technical risk. Our users need to understand how decisions today affect their programs years into the future. Organizational Alignment: Create intuitive interfaces that help diverse teams (scientists, program managers, executives) understand how their work connects to broader company goals. This includes designing clear ways to visualize complex dependencies and communicate progress across teams. Scientific Operations: Design interfaces that scientists and researchers use daily to manage their studies, track progress, and coordinate with their teams. This requires crafting experiences that empower rather than get in the way of work. AI Powered R&D Management: Leverage LLMs to help teams generate and evaluate scenarios, infer scientific progress and risks from unstructured data, and surface critical insights from across their R&D portfolio. What Sets You Apart Complexity : You understand how to build backends for complex, interconnected systems where changes in one area cascade across multiple dimensions. You're excited about creating infrastructure that handles the unique challenges of long term, high stakes R&D programs. Agency : You're drawn to environments where you can shape both the technical architecture and product direction. You enjoy the responsibility of building foundational systems that will scale, balancing the speed needed at an early stage company with the craftsmanship required for complex, mission critical software. Curiosity: You're genuinely curious about how breakthrough products are developed and excited about building software that helps scientific organizations operate more effectively. You want your technical work to contribute to bringing medicines and other innovations to market. Qualifications Required
- 6-8 years of backend development experience with production systems at scale
- Deep expertise in Typescript, NestJS, PostgreSQL
- Track record of building complex, scalable, reliable cloud-based software
- Experience with cloud platform (AWS/Azure/GCP) and containerization
- Strong experience in data modeling and API design
- Collaborative mindset with proven track record of working effectively in small, fast-moving engineering teams
- AI/ML integration with OpenAI, Anthropic, or similar LLM providers
- Prompt engineering and RAG implementation experience
- Full-stack capabilities - can contribute to frontend when needed (React/TypeScript)
- Track record of mentoring other engineers
Vacancy posted 17 hours ago
Similar jobs that could be interesting for youBased on the Senior Backend Engineer in San Francisco, CA vacancy
- ...Senior Engineer We are looking for a senior engineer to join our team in San Francisco. As one of the founding members of our team, you... ...first AI-powered wealth manager. Design and own the core backend infrastructure, including our multi-agent LLM architecture that...Senior
- ...Senior Backend Engineer We believe owning a home should feel as special as the moments that take place within them. If our mission inspires you, we'd love to hear from you. About the Role We're hiring a founding Senior Backend Engineer to help us design, develop...Senior
- ...About the Role Join the engineering team of a Series A B2B SaaS company building an AI... ...platform for SMEs. You'll work on core backend technologies that power messaging, automation... ...delivering features end-to-end at senior level. Tech Stack Backend: Java...SeniorVisa sponsorship
- ...FleetWorks Engineer Opportunity Every year, companies spend over a trillion dollars moving freight across the U.S. — but the system for matching trucks with jobs is still slow, manual, and fragmented. FleetWorks is fixing that. We're building voice agents that transform...SeniorFull timeWork at office
$179k - $240k
...Senior Backend Engineer Title of Role: Senior Backend Engineer Location: San Francisco, onsite Company Stage of Funding: Corporate Round — Software Development Office Type: Onsite Salary: $179K–$240K Company Description We're representing a dynamic...SeniorWork at office- ...Job Description We’re seeking a Senior Backend Engineer to design, build, and scale secure, enterprise-grade backend services that power trusted healthcare experiences. In this role, you’ll work at the core of our platform, building systems that handle sensitive data with...Senior
- ...Senior Backend Engineer As a Senior Backend Engineer, you will design, build, and deploy the backend services that power our creative brainstorming and creation products. You will work with web and video standards to power our suite of web-based image and video creation...SeniorFull timeWork at office
- ...identity with a team that holds a high bar for itself — keep reading. Socure is seeking a highly skilled and experienced Senior Software Engineer to join our dynamic engineering team within the Technology Center of Excellence. In this critical role, you will be a...Senior
- ...Senior Backend Engineer San Francisco • On Site • Full Time Judgment Labs is building the infrastructure for continual learning in long-horizon AI agents. The next generation of agents will not improve from prompts alone. They will improve from experience: the...SeniorFull time
$200k - $260k
...Senior Backend Engineer (AI DevTool Start-Up) $200,000 - $260,000 + Equity + Benefits + PTO On-site in San Francisco, CA Are you a senior backend engineer who takes pride in building reliable, airtight systems at scale? Do you care deeply about making sure nothing...Senior- ...startups to global brands, trust Nightfall's software platform and APIs to Client, classify, and protect sensitive data. As a Senior Backend Engineer you'll enable us to deliver our platform reliably, securely, and at massive scale. You'll help architect low latency, real-...Senior
$120k - $200k
...direction of our company. This is a hands-on position that will involve working on all parts of our backend, from the infra to services, and collaborating with other engineers, designers, and founders. A great opportunity for someone to create a lasting impact not only on...Senior- ...Our platform empowers developers by providing secure, reliable access to LLMs and adjacent services, and we're looking for a Senior Backend Engineer to help us build rock‑solid guardrails and observability tooling at scale. About The Role You’ll focus on owning our...SeniorWorldwide
- ...About The Role As a Senior Backend Engineer , you will play a critical role in designing and building Nash’s backend systems, services, and APIs. You’ll work closely with the CTO, co-founder, and engineering and product team to scale our platform, optimize performance,...SeniorWork at officeFlexible hours
$175k - $200k
...About this role We’re looking for a Senior Backend Engineer to join our Core Engineering Team , which powers some of the most essential experiences at Scribe: document viewing and editing, embedding and exporting content, and supporting key integrations. Millions of users...SeniorTemporary workWork at officeWork from homeFlexible hours- ...customer's instance, balancing extreme flexibility with transactional integrity. Build a Git-style version-control + migration engine capable of rolling forward/back complex schema and data changes on live production tenants in enterprise settings. Engineer AI-assisted...SeniorWork at officeImmediate startRelocation packageFlexible hours
$163k - $246.5k
...Backend Engineer Semgrep, the leader in code security for builders, empowers invention without friction. Teams catch, flag, and fix real issues before they ship, powered by security that learns as they build. Semgrep secures code as it's written and provides guardrails...SeniorCurrently hiringLocal areaRemote workWeekend work3 days per week- ...Senior Backend Engineer We are seeking a Senior Backend Engineer with deep experience in building and scaling backend systems. You'll be working on mission-critical systems, focusing on performance, scalability, and reliability. If you are passionate about building...SeniorWork at officeWork from homeFlexible hours
$150k - $180k
A growing tech company in California is seeking a highly skilled Senior Java Backend Software Engineer to develop and maintain scalable backend solutions for healthcare management systems. The ideal candidate will have 5+ years of experience in Java, strong OOP knowledge...SeniorRemote job$150k - $265k
Slope, located in San Francisco, is looking for a Senior Backend Engineer. This role involves owning features end-to-end within a modular API-first architecture and requires experience with TypeScript and Node. Successful candidates will have 5+ years in software engineering...Senior- A forward-thinking technology startup is seeking a Senior/Staff Engineer to join their team. The role involves owning entire lines of business and contributing to scaling innovative products. Ideal candidates should have strong expertise in Python, particularly Django,...Senior
- ...Senior Backend Engineer San Francisco About Us Beast Industries is a multifaceted media and entertainment company founded by Jimmy Donaldson, popularly known as MrBeast, the most watched person in the world. Renowned for revolutionizing digital content creation...SeniorTemporary workWork at officeRelocation packageFlexible hours2 days per week
- ...We are looking for a talented and driven backend engineer with system design and architecture experience. This position entails complete remote work, encompassing the end-to-end process of designing, building, and scaling critical infrastructure services for a large...SeniorWork at officeRemote workWork from homeWorldwideRelocationRelocation packageFlexible hours
$100k - $300k
...comes from mastering our craft and understanding the nuances of our field. LlamaIndex’s backend application platform team is hiring for an experienced (4+ years) backend engineer excited to build new features and scale out our ingestion and AI systems! LlamaIndex is backed...SeniorWork at office$180k - $230k
...every customer’s instance, balancing extreme flexibility with transactional integrity. Build a Git‑style version‑control + migration engine capable of rolling forward/back complex schema and data changes on live production tenants in enterprise settings. Engineer AI‑...SeniorWork at officeImmediate startRelocation package- ...way to win as a startup. What Are We Looking For? Complete is at an exciting inflection point and we're looking for Senior or Staff Engineers to help scale us to a $XXM+ in ARR. You'll be a great fit if you like to move with urgency and high agency. We're...SeniorWork at office
- Ripple is seeking an experienced backend engineer to design and build distributed services that orchestrate real-time screening across risk domains. You will integrate internal Ripple systems with external compliance data providers and architect for resilience to maintain...Senior
- A leading design technology company in San Francisco is seeking a Senior Software Engineer for Backend (Systems / Infrastructure). You will architect and deliver backend systems to maintain scalability as demand grows. This role involves optimizing APIs, managing GPU workloads...Senior
$155k - $190k
...Senior Backend/Infrastructure Software Engineer We are searching for a Senior Backend/Infrastructure Software Engineer to help us develop AI-based autonomous industrial robotic solutions and integrate them with our customers' complex software management environments...SeniorFull timeWork at officeImmediate start- Patch is building the data‑and‑transaction backbone of its climate‑finance engine. The role focuses on ingesting price and inventory data, settling high‑value payouts, and scaling systems across currencies and rails. You’ll prototype, harden, and lead with context while...Senior
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Backend Engineer. Be the first to apply!
Related searches
- back-end developer San Francisco, CA
- senior backend developer San Francisco, CA
- backend software engineer San Francisco, CA
- backend python developer San Francisco, CA
- remote back end developer San Francisco, CA
- senior trade analyst San Francisco, CA
- senior app developer San Francisco, CA
- senior customer service advisor San Francisco, CA
- senior international account manager San Francisco, CA
- senior product manager mobile San Francisco, CA

