ZEFR

Senior Software Engineer

ZEFR$180K — $200K *
Enterprise Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's or Master's degree in Computer Science or related field and 5+ years of professional software engineering experience.
  • Deep hands-on experience with microservices in Kubernetes and cloud environments (GCP, AWS, or Azure).
  • Proficiency in using AI tools for coding and research to enhance productivity.
  • Strong grounding in distributed systems, API design, data structures, algorithms, and software design.
  • Thorough testing and code review practices.
  • Self-starter with problem identification and solution implementation skills.
  • Strong collaboration, verbal, and written communication skills.
  • Big plus: familiarity with LLMs and related technologies.

Responsibilities

  • Own design and implementation of microservices and manage their operation in cloud environments.
  • Design systems for scale and reliability, ensuring operational health including observability and incident response.
  • Utilize AI in coding and research daily, aiding team adoption of AI-driven methods.
  • Collaborate with product, ML, and infrastructure teams to derive technical designs from requirements.
  • Contribute to architectural decisions and establish engineering standards throughout the platform.
  • Mentor engineers and communicate technical direction to both technical and non-technical audiences.

Benefits

  • Flexible PTO
  • Medical, dental, and vision insurance with FSA options
  • Company-paid life insurance
  • Paid parental leave
  • 401(k) with company match
  • Professional development opportunities
  • 10+ paid holidays off
  • Summer Fridays (early leave)
  • Hybrid work environment (2 office days, 3 remote)
  • In-office lunches and free food
  • Optional social events (in-person and virtual)
Full Job Description
What you'll do:

We are hiring a Senior Software Engineer to own the design, implementation, and operation of microservices running in Kubernetes and other cloud-scalable, highly available environments. In this role you will build and run the production systems that power Zefr's platform at scale, and you will use AI fluently - for coding, research, and problem-solving - as a core part of how you work. Success in this position looks like a self-starter who takes ambiguous problems from design through production, operates what they build, and raises the engineering bar for the team through strong collaboration and clear communication.
  • Own the design and implementation of microservices, and run and operate them in Kubernetes and other cloud-scalable, highly available environments.
  • Design systems for scale, reliability, and high availability, and take accountability for the operational health of owned services, including observability, alerting, and incident response.
  • Use AI tools for coding and research as a daily part of the engineering workflow, and help the team adopt effective AI-assisted development practices.
  • Collaborate with product, ML, and infrastructure teams to translate requirements into robust technical designs.
  • Contribute to architectural decisions, design reviews, and engineering standards across the platform.
  • Mentor other engineers and communicate technical direction clearly to technical and non-technical stakeholders.

Languages: Python Data stores: Snowflake, Elastic Search, PostgreSQL Data processing: Apache Kafka, Dask, Pandas DevOps: Github Actions, Docker, Terraform, Kubernetes, ArgoCD, AWS/GCP

What we're looking for:
  • Bachelor's or Master's degree in Computer Science or related field with 5+ years of professional software engineering experience
  • Deep hands-on experience designing, building, running, and operating microservices in Kubernetes and cloud environments (GCP, AWS, or Azure)
  • Proficiency using AI for coding and research as a daily productivity multiplier (e.g., Claude Code, Copilot, Cursor)
  • Strong foundation in distributed systems, API design, data structures, algorithms, and software design
  • Thorough testing and code review standards/practices
  • Self-starter who identifies problems, proposes solutions, and drives them to completion with minimal direction
  • Strong collaboration skills and strong verbal and written communication skills
  • Big plus: proficiency with LLMs, MCP (Model Context Protocol), agent-gateway, and agentic infrastructure


Benefits (for US based employees):
  • Flexible PTO
  • Medical, dental, and vision insurance with FSA options
  • Company-paid life insurance
  • Paid parental leave
  • 401(k) with company match
  • Professional development opportunities
  • 10+ paid holidays off
  • Summer Fridays (we leave early)
  • Hybrid work: 2 days in our Marina del Rey office, 3 days remote
  • In-office lunches and lots of free food
  • Optional in-person and virtual events (we like to celebrate!)


Compensation (for US based employees):

The anticipated salary for this position is between $180K and $200K. Within the range, individual pay is determined by factors such as job-related skills, experience, and relevant education or training. If your compensation expectations fall outside of this range, it may still be worth having a conversation.

About ZEFR

ZEFR is a technology company that provides contextual targeting solutions for brands. The company's platform offers a suite of software tools that enable brands to identify and target their desired audiences on YouTube and other social media platforms. ZEFR's technology uses machine learning algorithms to analyze video content and identify relevant keywords and topics, which can then be used to target specific audiences with relevant ads. The company was founded in 2009 and is headquartered in Burbank, California.
Learn more about ZEFR
Size
200 employees
Industry
Founded
2008

Similar Jobs

More Enterprise Technology Jobs

Find similar Senior Software Engineer jobs: