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ReturnPro · 4 months ago

Backend .NET Developer

United States

Full-time

Remote

Mid Level

3+ years exp

ReturnPro is transforming the returns industry by helping companies recover value and simplify returns. They are seeking an enthusiastic Backend .NET Developer to build and enhance their Returns Management SaaS Platform, collaborating with teams to create innovative solutions that delight clients.

Information TechnologySaaSSupply Chain Management

H1B Sponsor Likely

Responsibilities

Build and enhance our industry-leading Returns Management SaaS Platform

Collaborate with passionate teams to turn challenging requirements into exceptional solutions

Continuously innovate to ensure our platform stays fast, scalable, and reliable

Dive deep into business processes, developing technological solutions that delight our clients

Qualification

.NETC#RESTful APIsSQLNoSQLDockerKubernetesAzureOpenAI APIAI Prompt OptimizationData ProcessingVersion ControlEnglish CommunicationCollaboration

Required

Have strong hands-on experience in .NET and C# development

Love creating clean, robust, and maintainable code

Are passionate about RESTful APIs, microservices, and modern web architectures

Have a strong grasp of relational databases like MSSQL or PostgreSQL

Enjoy working collaboratively, communicating clearly, and solving problems effectively

Communicate confidently in English (Upper-intermediate or above)

Python Expertise - 3-5 years of experience with Python for data handling, API interactions, and automation

Database Querying - Strong SQL & NoSQL skills for retrieving and structuring large datasets

OpenAI API & LLM Experience - Experience or strong interest in working with OpenAI's API (GPT models) and prompt engineering

AI Prompt Optimization - Understanding of how to structure AI prompts for clarity, accuracy, and efficiency

API Integration & Automation - Experience in RESTful API interactions and processing structured responses

Data Processing & Transformation - Proficiency in pandas, numpy for cleaning and preparing data before AI inference

Scalability & Performance Optimization - Familiarity with asynchronous programming, parallel processing, caching

Version Control & CI/CD - Hands-on experience with Git, Docker, CI/CD pipelines

Preferred

Experience with Docker, Kubernetes, and Azure Cloud technologies

Familiarity with NoSQL databases (e.g., MongoDB)

Knowledge of OpenAPI (Swagger)

Experience writing comprehensive unit and integration tests

Interest or experience in leveraging AI tools to optimize your coding workflow, such as AI-assisted coding, automated code reviews, or generative AI tools

Proficiency in languages such as Russian, Romanian, or Spanish (any of these would be a fantastic plus!)

Experience fine-tuning OpenAI models or custom LLM deployment

Hands-on experience with big data tools (e.g., Snowflake, BigQuery, Databricks)

Familiarity with asynchronous processing (asyncio, Celery) for high-volume API calls

Experience in pricing automation & AI-powered decision-making

Benefits

Enjoy a collaborative and supportive remote work environment.

Company

ReturnPro

At ReturnPro, we help retailers, brands, and 3P sellers turn returns into opportunity.

Founded in 2008

Miami, Florida, USA

1001-5000 employees

https://goTRG.com

H1B Sponsorship

ReturnPro has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (1)