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Join a startup on the way up — not a bet, not a giant.

Tech roles at Series A–C companies backed by Sequoia, a16z, Benchmark & other top-tier VCs

  • Sequoia
  • a16z
  • Benchmark
  • Accel
  • Greylock
  • Founders Fund
  • General Catalyst
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  • Lightspeed
  • Bessemer
  • Coatue
  • Insight Partners
  • IVP
  • NEA
  • Thrive Capital
  • Sequoia
  • a16z
  • Benchmark
  • Accel
  • Greylock
  • Founders Fund
  • General Catalyst
  • Index Ventures
  • Lightspeed
  • Bessemer
  • Coatue
  • Insight Partners
  • IVP
  • NEA
  • Thrive Capital

Open roles

High-signal tech roles at Series A–C companies, refreshed as boards update.

20 results on this page
Jobs per page
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20 results on this page
Jobs per page
PreviousPage 50Next
Altos Labs logo
Senior Research Associate/ Scientist, Drug Product Process Development and Manufacturing
1/20Posted 2 weeks ago

Altos Labs · Redwood City, San Mateo County, California

Onsite
Series A
$1B-$10B
General Catalyst
Autonomous Aerial Vehicles
Posted 2 weeks agoSee job

Altos Labs seeks a hands-on Scientist or Senior Research Associate to join the Drug Product Process Development team, focusing on formulation and process development for mRNA-LNP, AAV, and protein therapeutics. The role involves bench-based experiments, stability testing, and collaboration with CDMOs for GMP manufacturing support.

Altos Labs logo
Scientist / Senior Scientist, Multimodal AI
2/20Posted 2 weeks ago

Altos Labs · San Diego, San Diego County, California

Onsite
Series A
Altos Labs logo
Senior Director, Project Team Leader
3/20Posted 2 weeks ago

Altos Labs · Redwood City, San Mateo County, California

$313,200 - $401,500
Onsite
Altos Labs logo
Scientist /Senior Scientist, Multimodal & Relational Machine Learning Foundation Models
4/20Posted 2 weeks ago

Altos Labs · Redwood City, San Mateo County, California

$200,900 - $330,000
Altos Labs logo
Senior Automation Engineer
5/20Posted 2 weeks ago

Altos Labs · Redwood City, San Mateo County, California

$167,400 - $204,100
Onsite
Altos Labs logo
Scientist / Senior Scientist, Metabolomics Group Lead
6/20Posted 2 weeks ago

Altos Labs · Redwood City, San Mateo County, California

$156,800 - $221,000
Onsite
Altos Labs logo
Scientist, Biological Sciences
7/20Posted 2 weeks ago

Altos Labs · San Diego, San Diego County, California

$116,450 - $247,000
Series A
Altos Labs logo
Scientist, In Vivo Biology
8/20Posted 2 weeks ago

Altos Labs · San Diego, San Diego County, California

$127,100 - $184,300
Series A
Altos Labs logo
Scientific Operations Manager, Drug Discovery & Development Sciences
9/20Posted 2 weeks ago

Altos Labs · Redwood City, San Mateo County, California

$163,000 - $209,000
Onsite
Altos Labs logo
Research Specialist / Scientist, Metabolic Phenotyping (In Vitro & In Vivo)
10/20Posted 2 weeks ago

Altos Labs · Redwood City, San Mateo County, California

$129,500 - $189,200
Onsite
Senra Systems logo
Technical Trainer
11/20Posted 2 weeks ago

Senra Systems · Cypress, Orange County, California

$30 - $45
Onsite
Senra Systems logo
Training Supervisor
12/20Posted 2 weeks ago

Senra Systems · Cypress, Orange County, California

$100,000 - $140,000
Onsite
Senra Systems logo
Senior Product Manager
13/20Posted 2 weeks ago

Senra Systems · Cypress, Orange County, California

$140,000 - $200,000
Onsite
Senra Systems logo
Quality Inspector
14/20Posted 2 weeks ago

Senra Systems · Redondo Beach, Los Angeles County, California

$24 - $36
Onsite
Senra Systems logo
Program Manager
15/20Posted 2 weeks ago

Senra Systems · Cypress, Orange County, California

$110,000 - $160,000
Onsite
Senra Systems logo
Production Coordinator
16/20Posted 2 weeks ago

Senra Systems · Redondo Beach, Los Angeles County, California

$23.5 - $40
Onsite
Senra Systems logo
Technical Program Manager
17/20Posted 2 weeks ago

Senra Systems · Redondo Beach, Los Angeles County, California

$120,000 - $200,000
Onsite
Senra Systems logo
Industrial Engineer
18/20Posted 2 weeks ago

Senra Systems · Cypress, Orange County, California

$125,000 - $180,000
Onsite
Senra Systems logo
Senior Technical Recruiter
19/20Posted 2 weeks ago

Senra Systems · Cypress, Orange County, California

$150,000 - $170,000
Hybrid
Senra Systems logo
Senior Test Engineer
20/20Posted 2 weeks ago

Senra Systems · Cypress, Orange County, California

$140,000 - $175,000
Onsite
$1B-$10B
General Catalyst
Computer Vision
Docker
JAX
Kubernetes
+3 more
Posted 2 weeks agoSee job

Altos Labs is seeking a Scientist/Senior Scientist in Multimodal AI to design and build scalable solutions unifying biomedical imaging with molecular and language data. The role involves developing large-scale multimodal foundation models, data fusion, and distributed training on cloud infrastructure.

Series A
$1B-$10B
General Catalyst
Posted 2 weeks agoSee job

Senior Director, Project Team Leader at Altos Labs. This role leads multidisciplinary teams to execute high-priority therapeutic programs, overseeing drug development from preclinical through clinical trials. Requires 15+ years in biotech with strong program management experience.

Series A
$1B-$10B
General Catalyst
Diffusion Models
JAX
Large Language Models
Python
+2 more
Posted 2 weeks agoSee job

Altos Labs is seeking a Scientist/Senior Scientist to develop multimodal and relational machine learning foundation models for multiscale biology, focusing on integrating unstructured multimodal signals with structured relational data and knowledge graphs. The role involves pre-training and fine-tuning large-scale ML systems, integrating LLMs with GNNs, and building Relational Foundation Models to accelerate research on aging and disease.

Series A
$1B-$10B
General Catalyst
High-Throughput Screening (HTS)
Laboratory Information Management System (LIMS)
Posted 2 weeks agoSee job

Senior Automation Engineer at Altos Labs to design and scale automated lab workflows for drug discovery, focusing on liquid handling, robotics, and LIMS integration. The role supports the Institute of Medicine and requires 8+ years of laboratory automation experience.

Series A
$1B-$10B
General Catalyst
Transcriptomics
Posted 2 weeks agoSee job

Altos Labs seeks a Scientist / Senior Scientist to lead metabolomics projects, managing end-to-end workflows from experimental design to data delivery, using LC-MS instrumentation and collaborating with bioinformatics teams.

$1B-$10B
General Catalyst
Animal Disease Models
Animal Models
Autonomous Aerial Vehicles
Epigenetic Modifications
+5 more
Posted 2 weeks agoSee job

Altos Labs is seeking a Scientist in Biological Sciences to contribute to cellular rejuvenation research. The role involves studying cell programming, mentoring students, and collaborating on multidisciplinary projects. Requires a PhD and strong publication record.

$1B-$10B
General Catalyst
Aging Biology
Animal Disease Models
Autonomous Aerial Vehicles
Transcriptomics
Posted 2 weeks agoSee job

Altos Labs seeks a Scientist, In Vivo Biology to join Discovery Science in San Diego. The role involves developing and applying animal disease models to characterize and validate novel interventions for improving cell resilience and rejuvenating tissue functions. Requires a PhD and hands-on in vivo experience.

Series A
$1B-$10B
General Catalyst
Posted 2 weeks agoSee job

Altos Labs seeks a Scientific Operations Manager to drive operational excellence across laboratory, business, and team functions for the Drug Discovery & Development Sciences organization. The role manages lab operations, contracts, budgets, and team coordination, requiring a PhD or Master's in life sciences with biotech industry experience.

Series A
$1B-$10B
General Catalyst
Python
Posted 2 weeks agoSee job

Join Altos Labs' Discovery Science team to investigate metabolism in aging and cellular rejuvenation. This role involves designing and executing in vitro and in vivo metabolic studies, including rodent phenotyping, metabolic flux assays, and imaging, with responsibilities spanning experimental design, data analysis, and collaboration.

Series B
$10M-$100M
General Catalyst
Engineering Drawings
IPC/WHMA-A-620
Posted 2 weeks agoSee job

Senra Systems is seeking a Technical Trainer to develop wire harness technicians for aerospace and defense. This hands-on role involves leading training sessions, coaching apprentices, and driving continuous improvement. Onsite at Redondo Beach or Cypress, CA.

Series B
$10M-$100M
General Catalyst
IPC/WHMA-A-620
Software Configuration
Posted 2 weeks agoSee job

Senra Systems seeks a Training Supervisor to lead and own the end-to-end training program for electrical wire harness manufacturing. This role involves leading a team of Technical Trainers, developing curriculum, ensuring compliance with aerospace standards, and using metrics to drive performance. The position is onsite in Redondo Beach or Cypress, CA.

Series B
$10M-$100M
General Catalyst
Artificial Intelligence
ERP Systems
Manufacturing Execution Systems (MES)
Posted 2 weeks agoSee job

Senior Product Manager to lead development of mission-critical factory software for electrical wire harness manufacturing. Collaborate with operators, engineers, and leadership to design software systems that improve reliability, throughput, and visibility. Onsite role in Cypress, CA.

Series B
$10M-$100M
General Catalyst
Engineering Drawings
IPC-A-610
Lean Manufacturing
Quality Management Systems
Posted 2 weeks agoSee job

Quality Inspector responsible for in-process and final inspections of harnesses and hardware, ensuring compliance with specifications and supporting production goals at Senra Systems.

Series B
$10M-$100M
General Catalyst
Posted 2 weeks agoSee job

Senra Systems seeks a Program Manager to serve as the primary customer liaison, overseeing order execution from PO acceptance to delivery. The role involves managing cross-functional teams, schedules, and customer relationships in aerospace/manufacturing, with a salary range of $110k-$160k and onsite work in Redondo Beach or Cypress, CA.

Series B
$10M-$100M
General Catalyst
Manufacturing Execution Systems (MES)
Microsoft Excel
Power BI
SQL
Posted 2 weeks agoSee job

Senra Systems seeks a Production Coordinator to execute production plans and ensure work orders flow efficiently through the factory. This role coordinates cross-functionally to remove obstacles, resolve shortages, and maintain accurate production status. Onsite in Redondo Beach, CA.

Series B
$10M-$100M
General Catalyst
Microsoft Excel
New Product Introduction (NPI)
Posted 2 weeks agoSee job

Senra Systems seeks a Technical Program Manager to serve as the primary integration point between customers and internal teams, owning customer opportunities from RFQ through production handoff and driving cross-functional execution for aerospace and defense manufacturing programs.

Series B
$10M-$100M
General Catalyst
Capacity Planning
Posted 2 weeks agoSee job

Senra Systems seeks an Industrial Engineer to own material flow, factory throughput, and operational metrics, driving continuous improvement in a high-mix manufacturing environment. This foundational role includes supply chain, facility layout, and process design.

Series B
$10M-$100M
General Catalyst
Posted 2 weeks agoSee job

Senra Systems is hiring a Senior Technical Recruiter to scale their organization, owning full-cycle hiring across manufacturing and corporate roles. This hybrid/onsite role requires 3-5+ years of recruiting experience and will support launching a second factory.

Series B
$10M-$100M
General Catalyst
3D Printing
CAD
IPC/WHMA-A-620
Vector Network Analyzer
Posted 2 weeks agoSee job

Senior Test Engineer at Senra Systems to lead electrical test for wire harness manufacturing, establish best practices, and mentor test specialists. Based in Redondo Beach or Cypress, CA. Salary $140k-$175k.