Senior Solutions Engineer - Lead Client Integrations & APIs

Locked In Talent; Los Angeles (CA); Hybrid; USD 140,000 - 180,000; Full time

Benefits offered by this job

Equity

Medical coverage for employees and deP

401(k)

FSA

Commuter benefits

Unlimited PTO

Monthly wellness day

Stipends

Job summary

Locked In Talent is seeking a Senior Solutions Engineer to join our AdTech engineering team in a hybrid role with in-office days in Los Angeles, NY, or San Francisco. You will lead complex B2B integrations, build APIs and Python SDKs, and troubleshoot data and integration issues.

You will mentor engineers, influence architecture, and collaborate with product, engineering, and sales to deliver robust solutions and enable successful proofs-of-concept for strategic customers.

Qualifications

• 5+ years of software engineering experience, ideally with Python.
• 5+ years working with data systems and strong SQL experience.
• Experience building client-facing APIs, SDKs, and integration tools.
• Familiarity with AWS, PostgreSQL, and streaming technologies such as Kafka is preferred.
• Experience building workflow automation with tools such as n8n, Zapier, or similar platforms.
• Regular use of AI development tools such as Claude Code, Cursor, Codex, or similar.
• Ability to independently lead complex technical projects from concept through production.
• Strong client-facing communication and ability to translate technical concepts for non-technical stakeholders.
• Experience mentoring engineers.
• AdTech, advertising measurement, attribution, privacy-safe tracking, GDPR/CCPA, or server-side tracking experience is a plus.

Responsibilities

• Lead complex client integrations from technical discovery through production.
• Design and maintain Python SDKs, APIs, authentication flows, and integration tooling.
• Troubleshoot client implementations, data pipelines, and integration failures while driving long-term solutions.
• Identify data quality issues, product gaps, and opportunities to improve automation and technical infrastructure.
• Mentor junior and mid-level Solutions Engineers through technical guidance and code reviews.
• Partner with engineering and product on architecture and platform improvements.
• Support sales with technical discovery, RFPs, and proof-of-concept engagements.

Skills

Python

SQL

API design

SDK development

Client-facing communication

Project leadership

Mentoring engineers

Tools

AWS

PostgreSQL

Kafka

n8n

Zapier

Claude Code

Cursor

Codex

Job description

Locked In Talent is seeking a Senior Solutions Engineer to join our AdTech engineering team in a hybrid role with in-office days in Los Angeles, NY, or San Francisco. You will lead complex B2B integrations, build APIs and Python SDKs, and troubleshoot data and integration issues.

You will mentor engineers, influence architecture, and collaborate with product, engineering, and sales to deliver robust solutions and enable successful proofs-of-concept for strategic customers.