Senior Backend Engineer - AI, APIs & Scalable Systems

Zipliens

Franklin (VA)

On-site

USD 136,000 - 185,000

Full time

5 days ago
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Benefits offered by this job

Health Care Plan
Company 401(k) Match
Paid Time Off
Parental Leave
HSA contributions
FSAs
Short-Term Disability
Long-Term Disability
Life Insurance
AD&D
Voluntary Coverage Options

Job summary

Zipliens is a leading lien resolution company building core systems and data-heavy infrastructure at scale. We are seeking a Senior Backend Software Engineer to join our team and shape the next generation of applications for the legal industry.

You will own third-party integrations, build ML/LLM-enabled data processing, decompose monoliths, and mentor engineers while delivering secure, production-grade backend services for large datasets.

Qualifications

  • 6+ years of software development experience building and maintaining backend systems in production.
  • Significant experience with Python/Django or a comparable framework (Node.js, Rails, Laravel).
  • Experience designing and building APIs that other teams or external parties consume.
  • Experience integrating third-party or partner APIs, especially where the data is inconsistent, and the counterparty’s documentation isn’t solid.
  • Hands-on AWS experience - EKS/EC2, RDS, S3, and queueing (SQS or similar).
  • Strong SQL and PostgreSQL, including query optimization and schema design against large tables.
  • Hands-on experience with LLM or ML features, whether in production or through prototypes and experimentation: prompting, evaluation, and understanding how they fail.
  • Experience using or experimenting with agentic coding tools, and interest in building tooling around them.
  • Experience mentoring engineers and raising standards on a growing team.
  • Excellent written and verbal communication - you’ll be explaining technical constraints to non-technical stakeholders and to external partners.

Responsibilities

  • Own third-party integrations end to end, and help build the platform that makes new ones fast to stand up.
  • You’ll work directly with counterparties’ technical teams to define contracts, handle their data formats, and build the abstractions that keep one-off integrations from becoming permanent maintenance debt.
  • Build and operate ML/LLM systems that extract structure from medical records, lien correspondence, and other unstructured documents - including the evaluation and monitoring that tells you whether they’re actually working.
  • Refactor and decompose monolithic services into systems that scale independently - and operate them once they’re live.
  • Mentor mid-level engineers and set the bar in code review.
  • We’re adding engineers quickly this year; the seniors we hire now establish what good looks like for everyone who follows.
  • Build and maintain backend services and data processing workflows over large datasets, automating what’s currently manual.
  • Operate what you build: troubleshoot production issues and implement security practices appropriate to sensitive legal and medical data.
  • Work directly with internal stakeholders to translate business needs into technical solutions.

Skills

Python/Django
APIs
AWS
PostgreSQL
LLM/ML
Mentoring
Agentic tools
Communication
6+ years experience
APIs integration

Tools

Kubernetes

Job description

Zipliens is a leading lien resolution company building core systems and data-heavy infrastructure at scale. We are seeking a Senior Backend Software Engineer to join our team and shape the next generation of applications for the legal industry.

You will own third-party integrations, build ML/LLM-enabled data processing, decompose monoliths, and mentor engineers while delivering secure, production-grade backend services for large datasets.

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