
About Darwin Labs
About
Darwin Labs (http://www.darwinlabs.io/" target="_blank">www.darwinlabs.io)
We are Entrepreneurs and Darwinians who enjoy creating businesses.
We are building products on Bitcoin, Blockchain, Cryptocurrencies, Virtual Reality, Augmented Reality and Ad Tech.
We are technology partner for GBMiners (http://www.gbminers.com/" target="_blank">www.gbminers.com), which is second biggest Bitcoin mining pool outside china and currently operating at 5% of Network’s Hashing Power. The pool was launched on 31st August and since then has been the fastest growing bitcoin mining pool globally.
We run South East Asia’s First Blockchain Incubator, Satoshi Studios (http://www.satoshistudios.io/" target="_blank">www.satoshistudios.io). The incubator offers 50K USD in funding to blockchain startups from South East Asia in return for 8 -15% equity.
Incubator is backed by people like Roger Ver and will launch its first batch in second quarter this year
Connect with the team
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Python Software Engineer (3–5 Years Experience)
Location: [Pune]
Role Overview
We are seeking skilled Python engineers to join our core product team. You will work on backend services, API development, and system integrations, contributing to a codebase of over 250,000 Python lines and collaborating with frontend, DevOps, and native code teams.
Key Responsibilities
· Design, develop, and maintain scalable Python backend services and APIs
· Optimize performance and reliability of large, distributed systems
· Collaborate with frontend (JS/HTML/CSS) and native (C/C++/C#) teams
· Write unit/integration tests and participate in code reviews
· Troubleshoot production issues and implement robust solutions
Required Skills
· 3–5 years of professional Python development experience
· Strong understanding of OOP, design patterns, and modular code structure
· Experience with MongoDB (PyMongo), Mako, RESTful APIs, and asynchronous programming
· Familiarity with code quality tools (flake8, pylint) and test frameworks (pytest, unittest)
· Experience with Git and collaborative development workflows
· Ability to read and refactor large, multi-module codebases
Nice to Have
· Experience with web frameworks (web.py, Flask, Django)
· Knowledge of C/C++ or C# for cross-platform integrations
· Familiarity with CI/CD, Docker, and cloud deployment
· Exposure to security, encryption, or enterprise SaaS products
What We Offer
· Opportunity to work on a mission-critical, enterprise-scale product
· Collaborative, growth-oriented engineering culture
· Flexible work arrangements (remote/hybrid)
· Competitive compensation and benefits
SleekSky is a fast-growing engineering studio that partners with venture-backed product teams to ship modern, cloud-native software. We’re hiring a Software Engineer to join one of our health-tech clients and help build a scalable, user-centric platform that’s making a real-world impact—without revealing any confidential project details.
What you’ll do
- Build and ship production-ready React features that feel fast, accessible and polished.
- Design and maintain Node.js / Express APIs that are clean, secure and well-documented.
- Leverage AWS services (EC2, Lambda, Elastic Cache / Redis, load balancers, etc.) to deliver reliable, high-performance solutions.
- Automate CI/CD pipelines with GitHub Actions and uphold strong Git workflows.
- Collaborate in an agile, fully remote team that values code reviews, knowledge-sharing and continuous improvement.
- Champion engineering best practices—testing, monitoring, and infrastructure-as-code—while keeping an eye on new tech that can raise the bar.
What you’ll bring
- 2+ years of hands-on experience in full-stack development.
- Proven expertise with React (hooks, component architecture, state management) and modern JavaScript/TypeScript.
- Solid experience building RESTful services in Node.js with Express (or similar).
- Familiarity with AWS fundamentals (EC2, Lambda, load balancing, caching layers).
- Comfortable with Git, GitHub and automated CI/CD pipelines (e.g., GitHub Actions).
- Self-motivated, proactive and enthusiastic about learning new technologies and sharing knowledge with the team.
- Clear, concise communication skills—vital for an all-remote environment.
Nice-to-haves
- Experience with infrastructure-as-code (Terraform, CloudFormation, CDK).
- Exposure to containerisation (Docker, ECS, EKS) or serverless architecture patterns.
- Prior work in health-tech or other regulated domains.
Why SleekSky?
At SleekSky, you’ll join a culture that puts people first—pair programming, regular knowledge-sharing sessions and a genuine passion for building things the right way. Expect autonomy, trust and a runway to grow your craft alongside enthusiastic peers.
Ready to level up with SleekSky? Submit your résumé on your preferred hiring portal and we’ll be in touch right away.
We are looking for a Senior Developer to build and implement programs. As a senior developer, you’ll gain valuable management experience delegating responsibilities to the rest of your team and reviewing the work of junior developers.
Requirement
- Bachelor’s Degree in Computer Science required.
- 3+ years of experience in web and software development with NODE.JS and REACT.JS.
- Ability to work independently and multi-task effectively.
- Demonstrated understanding of projects from the perspective of both client and business.
Technical Skills
- Node Js
- MERN Stack
- Jira
- Version Control
- PHP, MySQL
- CSS
- OOP
- Agile Development
Roles & Responsibility
- Develops software solutions by studying information needs, conferring with users, studying systems flow, data usage, and work processes; investigating problem areas; and following the software development lifecycle.
- Documents and demonstrates solutions by developing. documentation, flowcharts, layouts, diagrams, charts, code comments, and clear code.
- Prepares and installs solutions by determining and designing system specifications, standards, and programming.
- Improves operations by conducting systems analysis and recommending changes in policies and procedures.
- Meeting deadlines.
- Accomplishes engineering and organization mission by completing related results as needed.
- Troubleshoot, debug and upgrade existing software
- Bachelor's Degree or equivalent experience.
- 5-8 years of experience with software development, preferably in Agile environment.
- Advanced knowledge of in software development tools, programming languages, databases, and environments, including but not limited to:
- Python 3.x, Django, functional Python, procedural Python, object oriented Python, Asynchronous Design, Micro Services, memcache, REDIS, Celery, ElastiSearch, RESTful web services, Relational (Oracle & MySQL) and Non-Relational (NOSQL & DynamoDB) databases, AWS.
● Leads a project end-to-end and collaborates across functions. Drives planning,
estimation and execution.
● Understands requirements well and comes up with efficient design
● Develops complex, well backed and bug-free products. Estimates accurately.
● Takes well-reasoned tech decisions keeping in mind goals and trade-offs
● Becomes a go-to person in more than one area. Provide technical mentoring to team
● Communicates clearly, gets clarifications and establishes expectations for all parties
● Helps establish SDLC best practices and high standards of code quality
● Demonstrates excellent problem solving & debugging skills
● Proactively identifies and resolves issues in requirements, design and code
● Contributes in tech recruitment efforts
Ideal Candidate Profile
● Solid experience in RoR, Golang, NodeJS or Python. Good to have exposure to ML.
● Should have experience in cloud computing
● Has an ability to quickly learn and contribute in multiple codebase
● Overcomes roadblocks and requires minimal oversight
● Takes initiatives to fix issues/tech debts before assigned to him/her
● Able to deep dive into codebase and advise QA of possible regression impact
● Communicates tech decisions through design docs and tech talks
● Has delivered projects with end-to-end accountability
● Keeps track of industry trends and introduces right tech/tools for a given job
● Excellent understanding of software engineering practices, Design Patterns, Data
Structures, Algorithms
● 8+ years of experience in product driven organization
● A Bachelors or Masters degree in engineering from a reputed institute (preferably
IITs, NITs, or other top engineering institutes)
Strong proficiency with JavaScript
Knowledge of Node.js , react js and frameworks available for it.
Understanding the nature of asynchronous programming and its quirks and workarounds
Good understanding of server-side templating languages
Good understanding of server-side CSS preprocessors
Basic understanding of front-end technologies, such as HTML5, and CSS3
Understanding accessibility and security compliance
User authentication and authorization between multiple systems, servers, and environments
Integration of multiple data sources and databases into one system
Understanding fundamental design principles behind a scalable application
Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform.
Knowledge on Blockchain development is added advantage.
Previous Experience in .Net or PHP is a Plus
Experience : 1.5 to 4 years
Location : Mumbai / work from home for other Locations
Immediate joiner
*Candidate has knowledge of typescript will be most preferrable.*
- Looking for a talented PHP Developer having experience in writing clean PHP code, having additional experience in Python/NodeJs and HTML, CSS, JS
- Someone very good at understanding requirements and developing services & features quickly.
- Good communication skills & team player, who engages with all stakeholders of the project to add clarity for all aspects of the ongoing software development project.
Your responsibilities will include:
- Having good attention to detail & requirements.
- Building software applications in PHP (mostly) and Python/Nodejs api-services.
- Creating web pages using HTML, CSS, JavaScript or VueJs.
- Developing applications using best design and coding practices.
- Writing, maintaining & upgrading middleware & back-end code and building efficient PHP and Python/Nodejs modules & services.
- Troubleshooting application and code issues.
- Integrating code with Databases & data storage solutions.
- Finalizing back-end features and testing web services.
- Updating and altering application features to enhance performance.
Key Requirements :
- Degree in Computer Science, Engineering or a related field.
- Must have Experience in PHP (Lumen & Laravel).
- Experience in either Python/Nodejs api development.
- Experience with Utils/Standards: REST, Swagger, JSON Schema.
- Experience in Web Page development - HTML, CSS, JS. Knowledge of VueJS will be a plus.
- Experience in creating scalable service-oriented & serverless applications.
- Experience with secure coding.
- Proficient BitBucket and Git.
- Should be experienced in following Agile methodologies. Tools - Jira & Confluence.
- Must have experience in Postgresql, MySql, MongoDB and Redis.
- AWS Services - S3, EC2, RDS, Elastic Cache.
- Good problem solving, decision making and prioritization skills.










