Senior Software Engineer, Developer Experience

Greenlight

Senior Software Engineer enhancing developer experience in DevEx team at fintech helping families raise financially smart kids. Focus on AI integration and developer tooling solutions.

Posted 5/1/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $130,000 - $180,000 per yearWebsite

Tech Stack

Tools & technologies

Kotlin

About the role

Key responsibilities & impact

Design, build, and maintain reusable developer tooling (CLI tools, NPM and Kotlin libraries) shared across all engineering teams
Enable a consistent and friction-free local development experience for engineers
Build and maintain robust CI/CD pipelines (GitHub Actions, ArgoCD) that provide fast, reliable feedback loops
Identify and eliminate bottlenecks in the developer workflow through proactive engagement with engineering teams
Contribute to and enforce standards for code reusability and maintainability across packages and libraries
Integrate AI tooling (LLMs, agentic workflows, code generation) into CI/CD pipelines and developer workflows to accelerate delivery
Build AI-assisted automation for test generation, code review, and performance anomaly detection
Evaluate and adopt emerging AI developer tools (e.g., Claude, Cursor, custom agents) and drive their adoption across engineering
Design intelligent observability solutions using AI to surface actionable signals from Datadog and other monitoring platforms
Partner with cross-functional teams to embed AI capabilities into the full software delivery lifecycle
Partner with architects, developers, and QA teams to design and execute a comprehensive performance testing strategy
Validate performance, stability, scalability, and reliability across web and mobile product surfaces
Build and maintain a scalable performance testing environment supporting both functional and load scenarios
Perform root-cause analysis on performance bottlenecks and provide clear recommendations
Coordinate performance testing across internal teams and external resources, ensuring complete test coverage for each release
Communicate testing status and performance insights to engineering leadership, translating data into actionable recommendations

Requirements

What you’ll need

5+ years of experience in software engineering, with a focus on developer tooling, platform engineering, or DevOps
You care deeply about developer productivity and treat your colleagues as your customers
You are a strong systems thinker who can navigate both platform-level architecture and the day-to-day pain points of individual engineers
You are excited by AI and actively look for ways to apply it to real engineering problems, not just as a buzzword
You communicate clearly across engineering, QA, and leadership translating technical findings into business-relevant insights
You are comfortable working in a cross-geography setup and can lead and mentor peers in a distributed environment
You bring a quality-first mindset and champion best practices in testing, observability, and release confidence

Benefits

Comp & perks

Medical, dental, vision, and HSA match
Paid life insurance, AD&D, and disability benefits
Traditional 401k with company match
Unlimited PTO
Paid company holidays and pop-up bonus holidays
Professional development stipends
Mental health resources
1:1 financial planners
Fertility healthcare
100% paid parental and caregiving leave, plus cleaning service and meals during your leave
Flexible WFH, both remote and in-office opportunities
Fully stocked kitchen, catered lunches, and occasional in-office happy hours
Employee resource groups

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

developer toolingCI/CD pipelinesperformance testingroot-cause analysiscode reusabilitycode maintainabilitytest generationcode reviewperformance anomaly detectionobservability solutions

Soft Skills

developer productivitysystems thinkingcommunicationmentoringcollaborationquality-first mindsetcustomer focusproblem-solvingleadershipcross-geography teamwork