Senior Software Engineer – Platform, AI

Bloomerang

Senior Software Engineer building and owning AI harnesses for Bloomerang’s nonprofit platform. Leading engineering reliability and development practices to empower nonprofits.

Posted 7/23/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $114,800 - $191,400 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in AI-driven development, backend service design, and cross-cutting AI-platform concerns, with a strong focus on C#/.NET and distributed systems. Emphasizes continuous improvement, collaboration, and high standards of technical excellence in delivering impactful solutions for nonprofits.

Highest-signal resume keywords

AI FluencyC#/.NET ProficiencyDistributed Systems ExperienceAuthentication and Identity ManagementContinuous Learning Mindset

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

AI DevelopmentBackend Service DesignC# ProgrammingDistributed SystemsSession ManagementMFASSOPython ProgrammingTypeScript ProgrammingModel Evaluation

Soft Skills

Self-DirectedCollaborative MindsetOwnership MindsetHigh Standards of ExcellenceContinuous Improvement

Tools & Technologies

Agentic Tooling EcosystemModel APIsMCPLLM OrchestrationKanban

Industry Keywords

AI-Driven DevelopmentNonprofit SolutionsTechnical ExcellenceProduct FeedbackA/B Testing

Tech Stack

Tools & technologies

Distributed Systems.NETPythonTypeScript

About the role

Key responsibilities & impact

Build and own the agentic harness Bloomerang engineering runs on—agent workflows, tool and model integrations, orchestration, and the guardrails and evaluation infrastructure that keep AI-driven development reliable and safe.
Use the throughput AI-driven development unlocks to follow through on delivery—ship minimum viable increments, then gather real customer feedback, run A/B tests, measure what shipped, and iterate until it makes a meaningful difference for nonprofits.
Own cross-cutting AI-platform concerns while standardizing prompt and context pipelines and consolidating local development environments across our products and teams.
Continually evaluate new models, AI tools, harnesses, and approaches—running rigorous evals and turning the winners into paved-road tooling the whole organization can rely on.
Design, build, and own backend services at the core of our platform—in the near term, our authentication chain (centralized authentication and session management), advancing toward a unified identity solution, primarily in C#/.NET.
Diagnose and resolve complex technical bottlenecks across distributed services and the AI tooling that sits on top of them.
Improve the engineering standards, automation, developer tooling, and AI harness the team relies on.
Help the team deliver in a continuous-flow (Kanban) model.
Use your experience to shape our software and delivery tooling—raising the bar on engineering standards, teaching and learning alongside the organization, and helping us ship better products for the nonprofits we serve.
Actively explore, integrate, and help lead the responsible use of AI across the team.

Requirements

What you’ll need

Genuine AI fluency and hands-on experience building with AI—agents, tools, harnesses, prompt and context pipelines, or evals—not just using AI to code faster.
8+ years of professional software engineering experience building and operating production services—or equivalent demonstrated depth.
Strong C#/.NET proficiency is ideal but not a deal breaker.
Familiarity with the agentic-tooling ecosystem (model APIs, MCP, LLM orchestration) is a strong plus.
Experience with foundational platform or distributed systems; authentication, identity, security, MFA, SSO, or session management is a plus.
A self-directed, senior-level ownership mindset.
Model high standards of technical excellence, ownership, and continuous learning.
Ability to own the quality of your work end to end.
Proficiency across a diverse range of frameworks, languages, databases, and tools; strength in C#/.NET is ideal, and comfort in Python/TypeScript that agentic tooling often lives in is a plus.
Collaborative mindset while partnering with Product, DevOps, and across Engineering to solve broad infrastructure and platform problems.

Benefits

Comp & perks

generous health, vision, and dental insurance options
HealthiestYou, a healthcare service that offers convenient, confidential access to quality doctors 24/7, anytime, anywhere.
competitive PTO package that includes 20 PTO days
3 flex days
4 optional volunteer days
12 paid holidays
paid parental leave
401k match to help invest in your future
Equipment shipped right to your door