Senior Engineer

Eli Technologies

. Build product end to end for processors, contractors, and program administrators .

Posted 10/12/2026full-timeNew York City • New York • United StatesSenior💰 $180,000 - $215,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in building production software with a strong focus on TypeScript, relational databases, and AI-assisted solutions. Capable of managing complex systems, ensuring compliance, and delivering high-quality code in fast-paced environments.

Highest-signal resume keywords

TypeScript Backend DevelopmentRelational Database ManagementAI-Assisted Document VerificationDebugging and Root Cause AnalysisCompliance and Security Expertise

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

TypeScriptNode.jsNext.jsMySQLPostgresGitDatabase MigrationsSchema DesignFraud DetectionEligibility Checks

Soft Skills

First-Principles ReasoningProblem-SolvingCollaboration

Tools & Technologies

BunTRPCPrismaTemporalDockerPulumiVercelTailscaleDatadogSentry

Industry Keywords

Financial DataComplianceReconciliationPaymentsLendingEnergy ProgramsUtility Software

Tech Stack

Tools & technologies

DockerJavaScriptMySQLNext.jsNode.jsPostgresTypeScript

About the role

Key responsibilities & impact

Build product end to end for processors, contractors, and program administrators
Develop AI-assisted document verification, eligibility checks, and fraud detection
Decide when to use a model, rule, or human and measure effectiveness
Maintain the ledger and loan tape reported to the lender
Reconcile financial records against bank records with cent-level accuracy
Consolidate outgrown systems such as Airtable into internal agentic tools
Improve CI speed, test-suite health, backups, database migrations, alerts, and workflows
Investigate production failures, fix root causes, and document incidents
Work directly with cofounders Adrian and Eduardo and a team of engineers
Own substantial parts of the system and ship work to production and customers quickly

Requirements

What you’ll need

6+ years building production software
Experience being responsible for a system when it breaks
Deep TypeScript experience on the backend, including Bun, Node, Next.js, tRPC, Prisma or similar
Solid relational database skills in MySQL or Postgres, including schema design, query plans, and migrations
Track record of taking on work outside an assigned lane and finishing it
Strong debugging and first-principles reasoning skills
Strong git knowledge and comfort with rebase
Ability to reason from browser to database and back
Ability to use AI agents heavily while remaining the author and accountable for every line of code
Comfort and competence in compliance- and security-heavy environments
Ability to work with personal and financial data and audited programs
Nice to have: Temporal or another workflow engine
Nice to have: Payments, ledgers, lending, or reconciliation experience
Nice to have: dbt, Snowflake, or other analytics tooling
Nice to have: Evaluating LLM output with test sets and metrics
Nice to have: Infrastructure experience with Pulumi, Docker, Vercel, Tailscale, Datadog, or Sentry
Nice to have: Energy programs or utility software experience

Benefits

Comp & perks

Meaningful equity package
Generous medical, dental, and vision coverage
Flexible, unlimited time off, with a minimum of three weeks encouraged
At least two company gatherings each year
Budget to co-work when solving difficult problems together
Family- and parent-friendly environment