Senior Engineer

We are a San Francisco-based AI infrastructure company working with leading frontier AI labs to build post-training data and evaluation infrastructure for foundation models. We are hiring a Python Developer to create high-quality datasets, reinforcement learning environments, and benchmarking pipelines used to improve and evaluate state-of-the-art LLMs. This is a remote role with flexible working hours.

Responsibilities

* Create and curate datasets for LLM post-training (SFT, RLHF, RL, preference optimization).

* Build and maintain RL environments for agent evaluation.

* Develop Python tooling for dataset generation, validation, and transformation.

* Evaluate models on custom benchmarks and testing pipelines.

* Collaborate with research and engineering teams to deliver client-specific post-training datasets.

* Work with terminal-first development workflows and cloud infrastructure.

Required Skills

* Strong Python programming skills.

* Understanding of LLM fundamentals and post-training concepts (SFT, RLHF, RL).

* Experience working with structured data (JSON, CSV, YAML).

* Git, Linux/Unix command line, and solid software engineering fundamentals.

Good to Have

Experience with RAG, agentic AI systems, Hugging Face Transformers, LoRA/PEFT, LangChain or LlamaIndex, vector databases (FAISS, Qdrant, Milvus, Pinecone, Weaviate, ChromaDB), Docker, AWS/GCP, FastAPI/Flask, Bash, CLI tooling, model evaluation frameworks, benchmarking, and AI infrastructure.

Compensation

Base Salary: USD $1,250/month

Equity: ESOP/Equity package included.

Performance Bonuses: Up to USD $4,000/month (in addition to base salary).

Location

Remote (Worldwide)

Work Hours

Flexible, remote-first, asynchronous work environment.

How to Apply

Apply here: https://tally.so/r/wLReJG

Please complete the application form and submit the required details. Only shortlisted candidates will be contacted.

Job description – Backend Developer

About Wekan Enterprise Solutions

Wekan Enterprise Solutions helps companies grow by modernizing their most critical legacy and on-premise applications, migrating them to the cloud and leveraging the most cutting-edge technologies. With a strong focus on Cloud, Mobile and IoT environments, our solutions help companies reduce TCO and improve their ROI on their technology investments. We are also the #1 MongoDB Global Strategic SI partner for mobile modernization.

Location - Chennai or Bangalore

Who are you ? An individual with...

• Good problem solving skills
• Good understanding of software design patterns.
• Believes in software as an enabler and is not constrained by one language or technology and is willing to scale with the product needs.
• Passion for Quality in the work being done.
• Excellent verbal and written communication skills.

Roles & Responsibilities

• Building and developing products and platforms for both client side as well as server-side scalable applications. These include designing Omni-channel (mobile, tablet & web) applications.
• Collaborate well with engineers, researchers, and data implementation specialists to design and create advanced, elegant, and efficient systems.
• Suggest & implement best practices for performance tuning while working on the larger datasets.
• Maintain quality and ensure responsiveness of applications.
• Perform design reviews and code Reviews with the Team
• Provide real time knowledge transfer to the team on the Requirements I UI Design & Development.
• Manage the infrastructure & deployment of the release artefacts by coordinating with respective peoples.
• Work in an agile environment with the defined sprints to deliver the assigned work in the stipulated timelines.
• Adhere to software development best practices and coding standards in all work products and participate in the refinement of those practices and standards to improve quality and productivity.

Skills

1. Must have strong 4 to 5 years of hands on experience Web Applications Development with good expertise in Node JS Stack using ORM like mongoose/Typeorm.
2. Proven experience building application using micro service environment using Docker/Kubernetes platform.
3. Experience in creating node modules and packaging through package manager’s.
4. Strong development and coding skills, good analytical and problem-solving skills.
5. Experience in writing JUnitest cases & performing code coverage using tools like mocha/sonarcube/hudson.
6. Rest API implementation using GraphQL.
7. Experience is building Dashboards with any chart library in Angular is a must 5. Experience in writing Restful API’s using Node/Python/Scala/Java, etc.
8. Knowledge of modern authorization mechanisms such as JSON Web Token, OAuth2.
9. Familiarity with code versioning tools such as Git, Bit bucket
10. Experience in working on Build Tools like NPM, Gulp, Bower, and Web pack.
11. Understanding of Agile & Scrum development methodology.
12. Knowledge of AWS, Azure will be an added advantage.

Tools & Technologies

Web Technologies: 1 NodeJS,  HTML5, CSS3, jQuery, Bootstrap, JavaScript, AJAX, Postman, REST API, Express 2. Testing:Jest, Karma 3. Databases: Mongodb, NoSQL, Redis 4. Code Management: Git, Bit bucket 5. Operating System: Mac, Linux, Windows 5. Cloud Technologies: AWS, Azure.

THIS IS PART-TIME JOB (4hr/day)

Who Are We:

we are a marketplace where small & mid Cafe and Restaurant owners can connect with a wide range of suppliers through our platform.

To simplify, a coffee shop owner can order from multiple suppliers using our system and receive orders with one delivery.

Why US:

- Grow with your best companions

- Flexible working hours

- Competitive compensation and benefits

We have 2 backend-projects

- Orders

- Agents

Skills Required:

- 2+ years of experience in Nodejs development

- proactive and an independent problem solver

Responsibilities:

- You will write reusable, testable, and efficient code

- Clean our code

- You will look to optimise applications for performance and scalability

- Deployment of Apps

- collaborate with the Team

Good to have

- Angular.js experience

- DevOps experience

We will extend the contract based on your performance.

Profile:

We are a Funded Startup developing a Gamified EdTech Mobile App. We are looking for an experienced Backend Developer (at least 4 years) who has hands-on experience of NodeJS (at least 2 years) and PostgreSQL (at least 2 years). You will be responsible for Defining, Developing and Maintaining all Server-Side Logic, Components, and Database.

Responsibilities: 

• Developing and Maintaining all Server-Side Logic and Components
• Defining and Maintaining all Schemas and Database
• Writing Cron Jobs in NodeJS
• Writing Database Triggers in PostgreSQL
• Testing, Repairing Defects and providing Technical Support.
• Documenting Node.js Processes, Database Schemas, and Preparing Reports
• Collaborating with Frontend Developers and Integrating with Frontend Components

Requirements: 

• Bachelor’s Degree in Computer, Information Technology, or similar
• Hands-on experience as a Backend Developer (at least 4 years)
• Hands-on experience of NodeJS (at least 2 years)
• Hands-on experience of PostgreSQL (at least 2 years)
• Hands-on experience of ExpressJS and Docker
• In-depth knowledge of Database Architecture
• Working knowledge of Multithreading in NodeJS
• Working knowledge of Python and ReactJS
• Basic knowledge of HTML5 and CSS3

• 2+ years experience in application development

• experience with Python and Javascript is required. 

• good knowledge of operating systems and networking concepts

• experience in using and understanding code from Open Source

• Strong command of NoSQL and ability to design schemas.

• Knowledge of front-end technologies such as React Native, React.js, or Javascript

• Experience with cloud infrastructure tools in AWS and Google Cloud

• experience with implementing best software engineering practices like version control with git, code reviews, writing unit-tests, writing readable code

• inclination towards researching new technologies and adapt them to solve challenges we face.

• Address all tech challenges and continue with tech innovation in order to improve business operations

• Experience with Live video stream a plus.

• Experience with AI preferred.

Node.js and frameworks available for it - Express, StrongLoop, etc
Understanding the nature of asynchronous programming and its quirks and workarounds
Integration of user-facing elements developed by front-end developers

front-end technologies - HTML5, and CSS3
Writing scalable, reusable, testable, and efficient code