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Junior Software Engineer (AI & Product Development) - USA Based * Junior Only We are an early-stage startup building AI-powered products and are looking for a motivated Junior Software Engineer based in the United States to join our growing team. We're not looking for someone who knows everything. We value curiosity, creativity, ownership, and a genuine interest in learning new technologies. If you enjoy solving problems, experimenting with ideas, and building things from scratch, we'd love to hear from you. **What You'll Work On** * Building and improving web applications and internal tools * Integrating AI/LLM APIs into real-world products * Developing backend services, APIs, and automations * Working with product and design teams to turn ideas into features * Testing, debugging, and improving existing systems * Exploring new technologies and helping shape technical decisions **Preferred Skills** * Experience with one or more programming languages such as Python, Java, or C# * Basic understanding of SQL * Experience consuming APIs and working with JSON data * Familiarity with Git and collaborative development workflows * Exposure to cloud platform; AWS is a plus * Interest in AI, LLMs, agents, automation, RAG, or data-driven applications **Who You Are** * USA-based * Naturally curious and eager to learn * Open-minded and comfortable adapting to change * Creative in approaching technical challenges * Dedicated, reliable, and able to take ownership of tasks * Strong communicator who enjoys collaborating with others * Excited by the pace and opportunities of a startup environment **What Matters Most** We care less about the number of years on your resume and more about your ability to learn, contribute, and grow. Show us projects you've built, problems you've solved, or anything that demonstrates initiative and passion for technology. When applying, please include: * Resume * GitHub, portfolio, or personal projects * A short introduction explaining why you're interested in startups and AI * Your hourly rate (can reach up to $60) and weekly availability (at least 15hr/week)
Project ID: 40495106
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⭐️⭐️⭐️ Junior Software Engineer | AI & Product Development ⭐️⭐️⭐️⭐️ Hello, How are you? I reviewed your requirements and am excited about the opportunity to contribute to an early-stage startup focused on AI-powered products. I enjoy building practical software, learning new technologies quickly, and working in fast-moving environments where ownership and creativity are valued. Why I’m Interested: ✔ Passionate about AI, LLMs, automation, and product development ✔ Enjoy building tools that solve real business problems ✔ Comfortable learning new frameworks and technologies as needed ✔ Excited by startup environments where engineers have direct product impact Let’s chat… Thanks
$20 USD in 40 days
9.6
9.6

Dear , We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in PHP, Java, XML, Python, SQL, Git, API Development, AI Development and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$25 USD in 5 days
8.9
8.9

Hi, ★★★ Python / APIs Expert ★★★ 4+ Years of Experience ★★★ I can build and improve web applications and internal tools with integrating AI/LLM APIs into real-world products. This will include: - Developing backend services and APIs - Testing, debugging, and improving existing systems - Collaborating with product and design teams I will handle the work by following a structured approach, utilizing best practices in coding and testing to ensure quality. Ready to start once you provide access to the necessary resources. Thanks!
$20 USD in 40 days
8.2
8.2

⭐⭐⭐⭐⭐ Junior Software Engineer for AI Product Development in the USA ❇️ Hi My Friend, I hope you're doing well. I've reviewed your job post and see you're looking for a Junior Software Engineer. You have no need to look any further; Zohaib is here to help you! My team has successfully completed over 50 similar projects in software development. I will focus on building and improving web applications, integrating AI APIs, and developing backend services to meet your needs. ➡️ Why Me? I can easily handle your software engineering tasks as I have 3 years of experience in Python, Java, and API integrations. My skills include problem-solving, debugging, and collaborating with teams to create effective solutions. Additionally, I am familiar with cloud platforms and have a strong interest in AI technology. ➡️ Let's have a quick chat to discuss your project in detail and I can show you samples of my previous work. Looking forward to discussing this with you! ➡️ Skills & Experience: ✅ Python ✅ Java ✅ C# ✅ SQL ✅ API Development ✅ JSON Data Handling ✅ Git Version Control ✅ Cloud Services (AWS) ✅ Web Development ✅ Debugging ✅ Problem Solving ✅ Team Collaboration Waiting for your response! Best Regards, Zohaib
$17 USD in 40 days
8.1
8.1

HELLO, I HAVE CAREFULLY REVIEWED YOUR REQUIREMENTS AND AM EXCITED ABOUT THE OPPORTUNITY TO CONTRIBUTE TO AN AI-FOCUSED STARTUP ENVIRONMENT. WITH 10+ YEARS OF EXPERIENCE IN SOFTWARE DEVELOPMENT, AI INTEGRATIONS, WEB APPLICATIONS, API DEVELOPMENT, AUTOMATION, AND CLOUD-BASED SOLUTIONS, I HAVE BUILT AND DELIVERED SCALABLE PRODUCTS USING PYTHON, C#, JAVA, SQL, REST APIS, AWS, AND MODERN WEB TECHNOLOGIES. I HAVE HANDS-ON EXPERIENCE WORKING WITH LLMs, AI AGENTS, RAG SYSTEMS, AUTOMATION WORKFLOWS, CHATBOTS, AND THIRD-PARTY AI API INTEGRATIONS. I ENJOY LEARNING NEW TECHNOLOGIES, SOLVING COMPLEX PROBLEMS, AND BUILDING PRODUCTS FROM IDEA TO DEPLOYMENT. MY STRENGTHS INCLUDE: • AI & LLM Integration • Backend API Development • Python, C#, Java & SQL • Cloud Platforms & AWS • Automation & Workflow Optimization • Git-Based Collaborative Development • Agile Development Methodologies I CAN COMMIT 40+ HOURS PER WEEK AND AM AVAILABLE FOR LONG-TERM COLLABORATION. WE WILL FOLLOW AN AGILE APPROACH WITH CLEAR COMMUNICATION, REGULAR UPDATES, AND HIGH-QUALITY CODE STANDARDS. I WILL PROVIDE COMPLETE SOURCE CODE, THOROUGH DOCUMENTATION, AND ASSISTANCE THROUGHOUT DEVELOPMENT. ADDITIONALLY, I OFFER 2 YEARS OF FREE ONGOING TECHNICAL SUPPORT FOR THE SOLUTIONS I DEVELOP. I AM CONFIDENT I CAN ADD VALUE TO YOUR TEAM AND HELP BUILD IMPACTFUL AI-POWERED PRODUCTS. I EAGERLY AWAIT YOUR POSITIVE RESPONSE. THANKS
$15 USD in 40 days
7.6
7.6

Hi I’m interested in supporting your early-stage AI product team as a junior software engineer focused on learning quickly, contributing consistently, and helping build practical AI-powered features. I have experience with Python, SQL basics, REST APIs, JSON data handling, Git workflows, backend services, web applications, automation scripts, and AI/LLM API integrations. The main technical challenge in a startup environment is turning fast-moving ideas into working features without creating messy code or slowing down the product team. I will solve this by writing clean, understandable code, documenting my work, testing carefully, and asking focused questions when requirements need clarification. I can help build internal tools, connect AI APIs, create backend workflows, debug issues, and support product/design teams as features move from idea to implementation. I’m especially interested in AI agents, automation, RAG workflows, and real-world AI products that solve practical business problems. My focus will be reliability, ownership, communication, and steady growth as part of your team. Thanks, Hercules
$50 USD in 40 days
7.5
7.5

Hello, I'm excited about the opportunity to join an early-stage startup focused on AI-powered products. I enjoy building practical solutions, learning new technologies, and working in fast-moving environments where I can contribute across multiple areas. My experience includes working with Python, APIs, JSON data, SQL, Git-based workflows, and web application development. I've also explored AI/LLM integrations, automation workflows, and backend development, giving me a strong foundation for building AI-driven products. What attracts me most to startups is the opportunity to take ownership, learn quickly, and help shape products from the ground up. I enjoy solving problems, collaborating with teams, and turning ideas into working features that deliver real value to users. I am comfortable working on: • Web applications and internal tools • API and AI/LLM integrations • Backend services and automations • Testing, debugging, and optimization • Researching and implementing new technologies I would be happy to share my resume, GitHub, portfolio projects, and discuss how my skills align with your team's goals. Hourly Rate: $20-$25/hr (negotiable) Availability: 15-25+ hours per week I look forward to learning more about your products and contributing to your team's growth. Best regards Jay
$20 USD in 40 days
6.7
6.7

Hi There!!! ★★★★ ( Junior AI software engineer role building AI products, APIs & startup features ) ★★★★ Project understanding: You are looking for a junior software engineer to help build AI powered products, web apps, backend APIs, and internal tools. Role involves AI/LLM integration, debugging, collaboration with product team and learning new tech in fast startup environment. Services: ⚜ Python/Java backend development & API integration ⚜ AI/LLM integration, automation & basic RAG workflows ⚜ SQL database design and data handling ⚜ Web app feature development & bug fixing ⚜ Git workflow, testing & collaboration ⚜ Basic AWS/cloud deployment support ⚜ Startup MVP development & iteration support I have work on small AI tools, API integrations and backend services using Python, Node and SQL. I like solving problems and building things from scratch, even I still improving my skills. I can align with US time zone and work closely with team for fast delivery. Let’s connect and discuss your product ideas and next steps. Warm Regards, Farhin B.
$15 USD in 40 days
6.7
6.7

I’ve helped early-stage teams build and improve API-driven tools and web apps while integrating third-party AI services, so I get how fast things move in startups. I’m comfortable working with Python and JSON APIs, and know how to write backend services that connect neatly with frontend features. To better support your product goals, could you share which AI/LLM APIs you’re currently exploring? Also, do you have existing infrastructure on AWS or are you open to recommendations for cloud setups? These details will help me suggest practical steps for smooth integration and scale. I’m based in the US and consistently prioritize quick learning and clear communication, which keeps projects moving forward. I can start by reviewing your current codebase or prototypes and propose improvements right away. Ready to jump in and contribute at least 15 hours per week.
$25 USD in 7 days
5.9
5.9

Hi there, I am excited to partner with your USA-based AI startup as a Junior Software Engineer. I specialize in building web apps, integrating LLM APIs, developing backend services & automations using Python, SQL, JSON, Git, and cloud technologies. Our team brings strong curiosity, ownership, creativity, and a passion for AI, RAG, and rapid learning in fast-paced startup environments. Looking forward to hearing back from you. With Regards, Raghav, BLW TECH
$25 USD in 40 days
6.5
6.5

Hello There! Hope you are doing fine. I am a junior software engineer with strong Python, API integration, and SQL skills. I have built small AI projects using LLMs and automation. I am curious, self-motivated, and eager to learn. Although I am not USA-based, I can work remotely during US hours and collaborate effectively. I have GitHub projects to share. My hourly rate is $25, available 20+ hours/week. Please start a chat to discuss your startup's needs. Best Regards, Md. Toriqul Islam
$20 USD in 40 days
6.2
6.2

Hi, I’m interested in joining an early-stage startup where I can contribute to building AI-powered products and grow alongside the team. I enjoy working across web apps, APIs, and automation systems, and I’ve been actively exploring LLM integrations, backend development, and data-driven features using Python/JavaScript, SQL, and REST APIs with JSON workflows. I’m comfortable working with Git-based collaboration, debugging systems, and turning product ideas into working features. I’m especially drawn to startup environments because they allow fast learning, ownership, and direct impact on product direction. I can commit at least 15 hours per week and am flexible with scheduling depending on project needs. My rate is within your stated range and can be adjusted based on scope and long-term fit. Do you already have a core tech stack selected for the product (e.g., Python/FastAPI, Node, React), or are you still exploring options for the initial build? Best Regards, Fizza K
$20 USD in 40 days
5.8
5.8

❤️Hi there ❤️ As a skilled engineer, I can do your project perfect. Please check my reviews to verify my skills. To be honest, developers with many comments are agents of agencies or outsourcing companies. Therefore, I believe I am the most suitable candidate for your project. I have a few ideas for your project, and I would like to confirm via private chat whether they align with your thoughts. Warm Regards, Ruslan
$20 USD in 40 days
5.8
5.8

As an experienced software engineer, I have been leveraging my skills in Git, PHP, and SQL to build robust web applications and improve internal tools, which aligns perfectly with the tasks laid out in your project. My 12 years of exposure to system administration, network engineering, and DevOps further enrich my capabilities in detecting and addressing bugs and errors through extensive testing and debugging. I am positive these experiences will prove invaluable in working on your existing systems and integrating new ones. Being USA-based, I am well-versed with the technological landscape here that aids me in adapting swiftly to changing environments. Furthermore, my expertise aligning with modern DevOps practices and cloud automation can greatly complement your preference for someone familiar with AWS. My fascination with AI-driven tech has driven me to keep tabs on its developments like LLMs and RAGs which prepared me perfectly to work with data-driven applications that are presumably at the core of your venture. My natural curiosity coupled with my adaptable nature is a testament to my ability to learn new technologies quickly, so I believe this role would be an optimal opportunity for me to grow professionally as well as contribute meaningfully to a startup that values innovation. Let's join hands and build something amazing!
$20 USD in 40 days
5.4
5.4

I understand you need a motivated Junior Software Engineer to build and improve AI-powered web applications and internal tools. My experience developing a Python-based data processing pipeline that reduced processing time by 40% aligns well with your goal of improving product functionality. I will deliver functional web application components using React and Python with Flask, and build internal tools with a focus on clear, maintainable code. This includes setting up a PostgreSQL database for data persistence and integrating with relevant AI APIs as needed. What specific type of AI models are you currently experimenting with or planning to integrate into the web applications? Ready to start as soon as you confirm scope.
$25 USD in 7 days
5.2
5.2

Hello, I'm Karthik, a Full-Stack Architect with 15+ years of experience building AI-powered applications, SaaS platforms, automations, APIs, and cloud-native solutions. While your posting is for a junior engineer, I can bring senior-level expertise to accelerate product development, architecture decisions, AI integrations, and backend services. I have hands-on experience with Python, FastAPI, Node.js, AWS, SQL, REST APIs, LLM integrations, RAG systems, AI agents, and workflow automation. I enjoy working with startups, rapidly validating ideas, building MVPs, and turning concepts into scalable products. My approach emphasizes clean code, ownership, fast iteration, and strong communication. Experience includes: • AI/LLM integrations (OpenAI, RAG, Agents) • Backend APIs & Automations • AWS Cloud Deployments • Database Design & SQL • Web & SaaS Product Development • Git/GitHub Workflows Available for long-term collaboration and startup environments where innovation and execution matter. Regards, Karthik
$25 USD in 40 days
5.8
5.8

Most early-stage AI startups struggle less with “can we use LLMs?” and more with turning prototypes into reliable, testable features that product teams can iterate on quickly. That’s where a junior engineer can add real value: ship focused, well-instrumented pieces and learn fast. My approach would be to pick a high-impact vertical (e.g., an LLM-powered assistant, RAG search, or an API-driven automation), design a minimal API contract, implement the backend endpoint with automated tests, and wire a lightweight frontend/internal tool so product can validate assumptions within weeks. I favor incremental delivery with feature flags and pragmatic telemetry. Recommended stack: Python backend (FastAPI for small services or Django for fuller apps), PostgreSQL, Redis for caching/queues, GitHub Actions CI, and OpenAI/Anthropic for LLM calls. Deploy on AWS (ECS/Lambda) or Vercel for frontends. Use Alembic/migrations and basic E2E tests. For maintenance, I prioritize modular services, clear logging, schema migrations, and small docs so future hires can pick up features quickly. Similar work: I built ProgramPro — an AI strength-coaching SaaS (Django, OpenAI/Anthropic, Postgres) that generates/adapts programs and exposes admin dashboards and exports. I’m USA-based, can do $20/hr and ~20 hrs/week; resume and GitHub are attached. What’s the single most important AI capability you want demonstrated first (RAG, agents, automation, or something else)?
$20 USD in 7 days
4.8
4.8

Hi there, With an extensive background in Software Development and DevOps, including proficiency in Python and Java that would be particularly vital for constructing and enhancing web applications and integrating AI/LLM APIs into real-world products, I embody the core attributes your AI Junior Software Engineer position demands. My knowledge of the complete development lifecycle harmonizes with my ability to turn abstract ideas into functional features, skills that I previously employed while developing frontend and backend services and APIs. Understanding your interest in Data-driven applications, it's noteworthy to mention that I possess strong skills in SQL, Git, AWS, and have a knack for troubleshooting. Moreover, my expertise extends to AI/ML and Generative Media where I've gathered hands-on experience using TensorFlow, PyTorch, Scikit-learn, XGBoost, Power BI, Tableau; basically the entire data science stack to imbibe in-house models with contextual understandings. NLP techniques such as RAG or GPT fine-tuning have become my specialty which could prove extremely useful given your inclination towards AI and automation.
$20 USD in 40 days
4.9
4.9

With over eight years of experience in the IT industry and a wide range of successful projects under my belt, I believe I possess the necessary skills to excel as your Junior AI Software Engineer. My areas of expertise, including Web and Mobile App Development, backend proficiency in Node.js, Python, and PHP, coupled with my hands-on experience with AI/ML integration make me an ideal candidate for your innovative startup venture. I am naturally curious and promise to bring a creative approach to solving even the most complex technical challenges. Moreover, my track record demonstrates not just my technical capabilities but also my strong work ethic. I consistently deliver scalable, user-friendly, high-performance solutions that align closely with client needs. Your preference for curiosity and creativity aligns beautifully with my personal philosophy on how to build groundbreaking technologies. While I have never worked directly with AI-powered products before, I am fascinated by the potential of this field and have a strong interest in working on data-driven applications like yours. You mention being less interested in an extensive resume and more focused on the ability to learn, contribute, and grow - traits that couldn't resonate more deeply with me. Regarding availability, I can easily commit at least 40 hours per week to your project while maintaining a high level of engagement and productivity.
$15 USD in 40 days
4.9
4.9

Hello, As an early-stage startup focused on AI-powered products, your search for a motivated Junior Software Engineer based in the United States aligns perfectly with my passion for problem-solving and technology innovation. I believe that true value lies in curiosity, creativity, and a willingness to learn new technologies, rather than just having all the answers. I am well-versed in Python, Java, and SQL, with experience in integrating APIs and working with JSON data. My familiarity with Git and AWS, coupled with a keen interest in AI and data-driven applications, positions me as a valuable asset to your team. I am dedicated, reliable, and thrive in collaborative environments, making me an ideal fit for a dynamic startup setting. I am excited about the opportunity to contribute to your projects, learn from the challenges, and grow alongside your team. I look forward to discussing how my skills and enthusiasm can add value to your AI initiatives. Best regards, Jayabrata Bhaduri
$20 USD in 40 days
4.6
4.6

Iloilo City, United States
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