Online Mern Stack Developer Jobs in Mississippi (NOW HIRING)

About Us

Virtuous is on a mission to inspire global generosity by helping nonprofits build better relationships with their donors. We offer a modern software platform that provides mid-sized charities with elegant tools for fundraising, marketing, volunteerism, and online giving.

Our talented team is driven to disrupt the status quo in the nonprofit sector. We are hungry, humble, and committed to delivering best-in-class software solutions, customer success interactions, and sales experiences to the world’s leading nonprofits

We also recognize the importance of giving back and making a difference in the communities where we live and work. That's why we practice radical generosity by volunteering at nonprofits or going the extra mile for our team and the customers we serve. We take our work seriously, but we don’t take ourselves too seriously. We believe that life is too short not to love what you do.

The ideal candidate for Virtuous embodies our values by:

• Asking questions with a spirit of curiosity

• Giving feedback freely with candor & grace, welcoming it in return

• Displaying a passion for philanthropy and technology

• Serving with joy. Everyone is willing to make the coffee!

• Celebrating the wins & milestones of others

• Assuming good intent & demonstrating trust in others

• Pursuing relationships with people different from themselves & creates space to be human

Find our core values & more here.

Position Summary

We're looking for a Senior Software Engineer (Full Stack) to join our Raise team, the fundraising platform behind branded giving experiences for thousands of nonprofits, everything from drag-and-drop form and campaign page building to A/B testing, donor intelligence, and data-driven ask personalization.

You'll help build, scale, and maintain the web applications that power the Virtuous Raise product, from crafting polished, donor-facing UIs (Raise pages need to look and feel unmistakably on-brand) to designing the backend systems and integrations that make personalization and real-time performance possible at scale. This is a “product engineer” role: you'll own features end to end, from discovery to finish, not just execute a spec handed to you.

It's essential that you already know and actively use modern AI development tools, and that you bring a pre-AI engineering foundation, we're looking for a tenured engineer who has adopted AI as a force multiplier, not a “vibe coder.” You'll need the judgment to review AI-generated code architecturally and catch it when it starts to go off the rails, while staying firmly in the driver's seat on correctness, design, and long-term code health.

Our current tech stack is C# on the backend, with Vue on the frontend (React/Svelte experience translates well). This role is roughly a 50/50 split between backend and frontend work, with a front-end lean given the design sensitivity of a donor-facing product like Raise.

Responsibilities

• Own features across Raise end to end, from forms and campaign pages to A/B testing, analytics/reporting, and data-driven donor upgrades, with the same weight given to visual polish as to functionality

• Help build the next wave of agentic experiences inside Raise, including agentic form and page building for nonprofit customers (leveraging their brand, voice, and data) and extending that agentic approach into email and other donor-facing touchpoints

• Design, build, and ship net-new, revenue-driving features across the full stack

• Own the performance, scalability, and reliability of the systems you build, instrumenting and monitoring them as first-class parts of the work

• Review AI-generated code with real architectural judgment, catching issues before they ship rather than rubber-stamping AI output

• Collaborate closely with Product and Design to translate donor and nonprofit customer needs into technical solutions

• Participate in code reviews and architectural discussions, contributing thoughtfully without becoming a bottleneck (we're looking for strong opinions, held loosely, not someone who slows the team down nitpicking style)

• Write clean, testable, efficient code across the frontend and backend

• Research and resolve customer bugs and issues preventing a world-class product experience

• Support a culture of experimentation, iteration, and continuous delivery

You Must Have

• 6+ years building modern web applications, including meaningful time spent running and scaling them in production

• Proficiency with C# and APIs, plus experience integrating with RESTful and/or GraphQL APIs

• Experience with JavaScript/TypeScript and frontend frameworks such as Vue, React, or Svelte

• Hands-on experience with AI coding agents (Claude Code, Cursor, Copilot, etc.) as a regular part of your development workflow, alongside a strong pre-AI engineering foundation

• Experience operating cloud infrastructure (Azure preferred) and infrastructure-as-code tooling (e.g., Terraform, TerraGrunt)

• Strong understanding of relational databases, not just querying them, but tuning them: indexing, query optimization, and strategies for scaling (read replicas, partitioning, connection pooling, etc.)

• Solid DevOps fundamentals: CI/CD pipelines, containerization, infrastructure monitoring, and hands-on experience scaling applications under real load

• Comfort with observability tooling (metrics, logging, tracing, alerting), DataDog preferred, and a habit of using it to debug and prevent production issues

• Design sensibility, comfort owning donor-facing, polished UI work, not just functional implementation

• A love for building quality products that delight users and solve real problems

• Strong communication skills and a team-first mindset

Nice to Haves

• Familiarity with container orchestration (Kubernetes) or modern PaaS deployment

• Experience defining and working against SLOs/SLIs, or otherwise formalizing reliability targets

• Experience working in a SaaS or B2B product company

• Prior experience in the nonprofit tech space

• Contributions to open-source projects or relevant technical blogs

• Excitement about helping teams grow and mature their engineering practice

What We Offer

• Market competitive pay leveraging Carta data

• Employee recognition through Bonusly (birthdays, anniversaries, achievements, etc.)

• 401(k) retirement plan with company matching- 50% match up to 6% of compensation after 90 days

• We value our employee’s work-life balance and encourage taking advantage of Unlimited PTO

• Supportive time off including paid volunteer days and company holidays

• Employer-contributed healthcare benefits, encompassing medical, dental, and vision coverage, with plans available for dependents and choices for Health Savings Accounts (HSA) and Flexible Spending Accounts (FSA).

• 12 weeks primary parent leave, 4 weeks secondary parent leave - full pay (adoption as well)

• We pride ourselves on Community and host exciting company outings and events.

We’ve recently noticed an increase in recruitment scams where individuals are impersonating recruiters to obtain personal or financial information through fraudulent interviews and job offers.

Please note that all legitimate communication from Virtuous will only come from the @virtuous.org domain. If you receive a message from other domains, even if they look similar (e.g., virtuouscareers.org or virtuousjobs.com), they arenot legitimateand we recommend disregarding it immediately.