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Senior Manager– AI Governance & Controls Engineering
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- $124,500 to $236,500 USD / year
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Principal Software Engineer
Bexorg
New Haven, CT
- $200,000 to $260,000 USD / year
We are seeking a Principal Software Engineer to own the software through which Bexorg's scientists design experiments on living human brain tissue and interrogate the data those experiments…
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Applied AI Engineer
CCI Systems, Inc.
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Bexorg

Principal Software Engineer

New Haven, CT, United States

$200,000 to $260,000 USD / year

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Job details

Pay: $200,000 to $260,000 USD / year
Posting language: English
Posted: Nov 4, 2026

Original job description

Location: New Haven, CT, on-site Full-time Reports to: Chief Technology Officer Compensation: $200,000 - $260,000/yearly plus bonus Company: Bexorg (Bexorg.com)

About Bexorg:

Bexorg is a precision neurology company working to transform how new medicines for central nervous system (CNS) diseases are discovered and developed. At the intersection of cutting-edge neuroscience, AI, engineering, and translational drug development, our team combines scientific rigor, responsible stewardship, and cross-disciplinary collaboration to advance innovative approaches to CNS therapeutics. Our flagship platform, BrainEx, is the world's first system to perfuse fresh, whole human postmortem brains through their intact vasculature, restoring and maintaining cellular biology, vascular reactivity, CSF circulation, and an intact blood-brain barrier. This groundbreaking technology serves as the foundation of an active CNS therapeutics pipeline, including a Phase 1 program in Alzheimer's disease. Our second platform, NeuroScale, builds on this foundation by enabling high-throughput, robotically handled brain-slice experiments that extend research capabilities from hours to weeks. Every experiment conducted on these platforms carries significant scientific and ethical responsibility. The tissue is generously donated, each experiment is irreplaceable, and the resulting data must meet rigorous standards for accuracy, reliability, and regulatory scrutiny. The software that designs, records, and analyzes these experiments is therefore more than a supporting tool. It is an essential part of our technology, developed in-house to ensure precision, accountability, and scientific integrity. To support this work, we are looking for curious, accountable individuals who are eager to take on meaningful challenges. At Bexorg, you will collaborate with colleagues who ask thoughtful questions, share ideas openly, and take ownership of moving complex work forward. Whether your expertise is in neuroscience, biology, engineering, data science, or operations, you will have the opportunity to contribute to groundbreaking research and help build a stronger foundation for the development of new CNS medicines.

The Role We are seeking a Principal Software Engineer to own the software through which Bexorg's scientists design experiments on living human brain tissue and interrogate the data those experiments produce. You will lead two flagship efforts: our custom LIMS, which supports two applications, Cortex for BrainEx and NeuroscaleOps for NeuroScale; and Neurolens, our AI research harness, which you will re-architect as a multi-tenant platform for large pharma partners. This is a hands-on principal role reporting to the CTO. You will set the technical direction, write a good share of the code, and ship to users who sit a few meters away. The first users of everything you build are the surgeons, perfusionists, neuroscientists, and drug discovery scientists who run the platforms. Their experiment designs become the data model, and the data model becomes the evidence behind our therapeutics. You will spend real time in the lab learning how an experiment on a human brain is actually designed: donors, protocols, dosing arms, sampling timepoints, regions, slices, plates, assays, readouts. You will turn that understanding into systems that make the right thing easy and mistakes hard, and that still make sense of the data years later. You will build on a strong foundation rather than a blank page: a multi-account AWS estate, an S3-based datalake, a LIMS in daily production use, and a working AI harness with 200+ skills. The job is to take systems that already work for one company and make them precise enough for the FDA and general enough for our partners.

What You'll Build -1. The LIMS: experiment design as the data model Our custom LIMS supports two applications, Cortex for BrainEx and NeuroscaleOps for NeuroScale, on the backend data models beneath them. It is in daily production use. Its most pressing gap is also the most interesting software problem in the company: a first-rate experience, and a first-rate data model, for designing experiments. An experiment on a donated human brain is designed once and run once. Its design determines what every downstream dataset means: which regions are sampled, which compounds are dosed at which concentrations and timepoints, which slices go to which plates, wells, and assays. Captured as free text, the design leaves the datalake full of results nobody can fully interpret. Captured as validated structure, every readout arrives already knowing what it measures.

You will build the loop that makes the second case the default:

Scientists describe our systems and protocols in natural language.
LLMs translate those descriptions into ontologies: the entities, relationships, and constraints of a BrainEx run or a NeuroScale slice campaign.
The ontologies compile into schemas that validate the data structures representing each experiment, in the UI while the scientist designs it and in the backend as data lands.
Ontologies, schemas, UI, and experiment records are versioned together, so the production system gains new capabilities continuously without orphaning a single historical run. The UX is half the problem. The people designing these experiments are world experts with no patience for clumsy tools. The design surface must feel like it was built by someone who understands the biology, because it will be. -2. Neurolens: a multi-tenant AI research harness for pharma Neurolens is our custom AI meta-harness, deployed on AWS. Scientists ask research questions in natural language, and the harness answers by composing a bounded action space of 200+ skills and bioinformatics tools over our datalake. Every step is recorded so that any result can be reproduced exactly: the standard of provenance that FDA compliance demands. Today Neurolens serves one organization over one datalake. You will re-architect it as a multi-tenant platform on AWS that becomes the basis for working with large pharma partners. At the center is a sophisticated permissions model that composes a custom datalake for each partner: every partner's view of our data is assembled from exactly the datasets, compounds, and tissue their individual licensing terms grant, and nothing else. In a second phase, partners will upload their own data and tools into that composed datalake at peer level with ours, so their scientists run Neurolens across both, with hard guarantees that no partner's data, skills, or provenance ever mixes with anyone else's.

That is a serious cloud engineering problem:

A licensing-aware permissions model: each partner's datalake composed from the datasets, compounds, and tissue their agreement grants, enforced at the storage, query, and skill level, and re-composed as agreements change.
Peer-level partner contributions, in the second phase: partner-uploaded datasets and tools that sit beside ours in the composed datalake with the same validation, provenance, and isolation guarantees.
Tenant isolation that is designed rather than assumed: account and VPC boundaries, per-tenant IAM and KMS, data residency and egress controls, and a provenance ledger that is itself tenant-scoped and tamper-evident.
Identity federation with partner identity providers, so a partner's scientists sign in with their own credentials and inherit exactly the entitlements their agreement defines.
A governed registry for skills and tools: versioned, tested, and auditable, so that an analysis run this year can be re-executed identically in a regulatory review years from now.
Scalable, cost-attributed compute for bioinformatics workloads over a large multimodal omics datalake: transcriptomics, proteomics, imaging, and physiological telemetry from the rigs.
Observability and evaluation for agentic runs: what the harness did, why, at what cost, and whether it was right.

What You'll Do

LIMS and Experiment Design (Cortex & NeuroscaleOps)

Own the end-to-end architecture of the LIMS and its two applications, Cortex and NeuroscaleOps: web front ends, APIs, backend data models, and the pipelines that connect them to the datalake.
Sit with scientists, perfusionists, and robotics engineers to understand how BrainEx runs and NeuroScale campaigns are designed, then encode that understanding as ontologies and schemas rather than tribal knowledge.
Design and ship the experiment-design UX: protocol templates, dosing and sampling plans, plate and slice layouts, validation at the point of entry, and clear diffs between versions of a design.
Build and operate the LLM-assisted ontology pipeline and its versioning model: natural-language descriptions in, reviewed and versioned ontologies out, with human approval gates and regression tests that catch semantic drift.

AI Research Infrastructure (Neurolens)

Lead the re-architecture of Neurolens into a multi-tenant AWS platform, and own the licensing-aware permissions model at its center: each partner's datalake composed from what their agreement grants, kept correct as agreements and data evolve.
Extend the platform, in its second phase, so partners can contribute their own data and tools at peer level with ours, under the same validation, provenance, and isolation guarantees.
Make provenance a product property: a governed skills and tools registry, immutable run records, deterministic re-execution, and exports a regulatory reviewer can follow without us in the room.
Scale the execution layer with per-tenant, per-run cost attribution, and partner with our Head of AI on evaluation, so the harness is measured on correctness and reproducibility, not only on whether it produced an answer.

Platform, Cloud & Data Engineering

Own production: infrastructure as code, CI/CD, observability, and operational practices appropriate for systems whose users are mid-experiment on irreplaceable tissue.
Evolve the datalake's data models alongside the LIMS so that physiological telemetry, imaging, and omics data join cleanly on experiment design rather than on file names.
Hold the security and compliance line across tenants: least privilege, encryption, audit logging, and the controls that pharma partners' security teams will scrutinize.

Leadership & Collaboration

Serve as the senior technical authority on application and cloud architecture at Bexorg, setting standards for design, code review, testing, and documentation.
Mentor engineers, and the scientists who increasingly build their own tools with LLMs, raising the floor of what the whole company can ship.
Represent Bexorg's software platform to the technical and security teams of biopharma partners, foundation partners, and government grantors.
Communicate clearly with technical and non-technical stakeholders, and write things down: design documents, decision records, and runbooks that outlast any one person.

Requirements

Extensive hands-on experience (typically 10+ years) designing, building, and operating production software, including several years as the technical lead or architect of systems that demanding users depend on daily.
Demonstrated track record of owning products end-to-end: discovery with users, data modeling, UX, implementation, deployment, operation, and iteration.
Strong expertise in most of the following areas: o Full-stack web application development: a modern front-end stack (e.g., React and TypeScript), API design, and backend services in Python or a comparable language. o Data modeling for complex scientific or operational domains: relational design (PostgreSQL), schema evolution and migrations, and versioned or bitemporal records. o Formal schemas and ontologies: JSON Schema, Pydantic, LinkML, OWL/SHACL, or equivalent, and the discipline of validating data at the boundary. o LLM-powered systems in production: tool use and agents, structured outputs, bounded action spaces, evaluation harnesses, and a clear-eyed view of where models fail. o AWS at depth: multi-account Organizations, IAM, VPC networking, KMS, S3-based datalakes, container and serverless compute, and infrastructure as code (CDK, Terraform, or CloudFormation). o Authorization and entitlements: fine-grained, policy-based access control at the row, column, and object level (e.g., AWS Lake Formation, Cedar, or OPA) that must mirror contractual terms exactly. o Provenance, auditability, and data integrity: immutable logs, deterministic re-execution, and controls in the spirit of 21 CFR Part 11, GxP, HIPAA, or SOC 2.
Real interest in drug discovery, and the patience to learn experiment design in depth from the scientists who do it.
Product sense: you notice when a tool is clumsy and fix it, and you can tell the difference between the feature scientists asked for and the one they need.
Fluency with LLM-assisted engineering as a daily practice, paired with the judgment to know when the model is wrong.
Excellent written and verbal communication, and demonstrated experience mentoring engineers and setting technical standards.
Proven ability to operate as an aggressive self-starter: you take ownership, move quickly, and drive projects forward with minimal supervision.
Bachelor's degree in Computer Science, Software Engineering, Applied Mathematics, or a related field, or equivalent industry experience with a strong track record of impact.
Based in, or willing to relocate to, the New Haven, CT area for an on-site role.

Nice to Have

Experience building or operating large multimodal omics datalakes: single-cell or single-nucleus transcriptomics, proteomics, metabolomics, or high-content imaging at scale, and the bioinformatics tooling around them (workflow engines such as Nextflow or Snakemake; scanpy, Seurat, or similar).
Experience with LIMS, ELN, or sample-tracking systems, commercial (e.g., Benchling) or custom-built, and strong opinions about why scientists dislike most of them.
Ontology engineering in the life sciences: OBO Foundry ontologies (UBERON, ChEBI, GO, Cell Ontology), knowledge graphs, or semantic-web tooling.
Multi-tenant SaaS architecture for enterprise or regulated customers, including security questionnaires, SOC 2 or ISO 27001 audits, and partner identity federation (SAML, OIDC).
Agentic AI infrastructure: tool and skill protocols, sandboxed execution, evaluation frameworks, and cost and latency control; experience with Amazon Bedrock or comparable model platforms.
Event-sourced or bitemporal data architectures, and experience versioning schemas and data together.
Background in biopharma, preclinical research, or regulated environments (GLP, IND-enabling studies, FDA submissions).
Hardware-adjacent software: telemetry ingestion, IoT fleets (e.g., AWS IoT Greengrass), or lab automation and robotics integration.
Advanced degree (MS or PhD) in computer science, applied mathematics, computational biology, or a related field. Why Bexorg
Build software for a platform that exists nowhere else: perfused, metabolically active human brains and robotically handled human brain slices, producing data no other dataset on earth contains.
See the consequences of your work daily. The scientists using your experiment designer and your AI harness sit down the hall from the rigs, and the data they produce feeds an active CNS pipeline that includes a Phase 1 program in Alzheimer's disease.
Solve problems that matter beyond Bexorg. LLM-derived ontologies as a validation layer, reproducible agentic research under regulatory scrutiny, and multi-tenant AI infrastructure for pharma are open problems across the industry. You will solve them with real users and real stakes.
Own two systems at principal level, reporting directly to the CTO, in a fast-moving, well-funded TechBio company with active partnerships across major biopharma, leading academic institutions, government grantors, and the Michael J. Fox Foundation.
Work on-site in New Haven, CT, with daily access to the lab, the rigs, the robots, and the people who run them. Compensation includes a competitive salary, meaningful equity, and benefits. This role is on-site. The work depends on being beside the scientists and the systems they run, and we expect the person in this seat to be here. For a truly exceptional candidate, we are open to a conversation about location. If you want to build the software that lets an experiment on a human brain be designed once, run once, and trusted for years, we'd love to hear from you.

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Skills

AWS
LIMS
Data models
Research
Regulatory compliance
Identity and access management
Direct inward dialing
Robotics
Data engineering
Infrastructure as code
CI/CD
Leadership
Collaboration
Documentation
Industrial software
Data modelling
React
TypeScript
API development
Python
PostgreSQL
IBM Terraform
Communication skills
Coaching
Computer science
Workflow
Snakemake
SAML
Good laboratory practices

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