Mid-Senior Full Stack Engineer

Company Description Send is a community-first tech startup building smart, inclusive solutions for everyday businesses. Our growing ecosystem includes SendFood (Food delivery), SendLive (Livestream commerce), and SendSocial (Community)—tools designed to empower our local community and to connect lives.At Send, we’re not just building products—we’re building bridges between tradition and technology. Our mission is to make digital tools accessible, culturally relevant, and meaningful for those often left behind in the digital shift.
The role
Build end-to-end features for Send Services web products. You will independently deliver well-scoped work across the UI, APIs, and data layer, collaborating with senior engineers on broader architectural decisions.
Responsibilities
Translate requirements and designs into responsive interfaces and working backend functionality.
Build React, Next.js, and TypeScript features with clear validation, loading, empty, and error states.
Implement C# and .NET endpoints and integrations, following agreed contracts and architecture.
Write database queries and safe data changes, with review for migrations and higher-risk changes.
Add automated tests, address review feedback, and work with QA to reproduce and fix defects.
Support releases, investigate issues using logs and reproduction steps, and escalate risks early.
Contribute to code reviews and document implementation decisions that affect other engineers.
Required qualifications
Production experience delivering complete features across frontend and backend.
Practical React, Next.js, and TypeScript skills, including forms, routing, and API integration.
Hands-on C# and .NET, REST APIs, relational databases, and SQL.
Understanding of authentication, authorization, validation, and secure handling of application data.
Ability to write automated tests, debug across layers, and use Git and CI workflows.
Ability to break down scoped work, communicate progress, and recognize when a design needs senior review.
Ability to use AI tools such as Claude and OpenAI products to improve work productivity: understand code, implement frontend and backend features, debug issues, and prepare tests and documentation.
Ability to provide clear context and instructions to AI, critically review and test its output, and explain resulting improvements in turnaround time or quality. Retain responsibility for the final work and protect code, credentials, and confidential data in line with company policy.
Preferred qualifications
Transactional applications such as ordering, checkout, and payments.
AWS, Docker, end-to-end testing, and performance troubleshooting.
Tailwind CSS, TanStack Query, or equivalent tools.
Success in this role
You deliver scoped features independently with complete tests and clear handover. You handle routine technical decisions and seek review when changes affect shared architecture or critical data.

Work arrangement
No