
Backend Engineer (Python / Django + DevOps)
Company: SurgePV (A product by Heaven Designs Pvt. Ltd.)
About SurgePV
SurgePV is an AI-first solar design software built from more than a decade of hands-on experience designing and engineering thousands of solar installations at Heaven Designs. After working with nearly every solar design tool in the market, we identified major gaps in speed, usability, and intelligence—particularly for rooftop solar EPCs.
Our vision is to build the most powerful and intuitive solar design platform for rooftop installers, covering fast PV layouts, code-compliant engineering, pricing, proposals, and financing in a single workflow. SurgePV enables small and mid-sized solar EPCs to design more systems, close more deals, and accelerate the clean energy transition globally.
As SurgePV scales, we are building a robust backend platform to support complex geometry, pricing logic, compliance rules, and workflow automation at scale.
Role Overview
We are seeking a Backend Engineer (Python / Django + DevOps) to own and scale SurgePV’s core backend systems. You will be responsible for designing, building, and maintaining reliable, secure, and high-performance services that power our solar design platform.
This role requires strong ownership—you will work closely with the founders, frontend engineers, and product team to make architectural decisions and ensure the platform remains fast, observable, and scalable as global usage grows.
Key Responsibilities
- Design, develop, and maintain backend services and REST APIs that power PV design, pricing, and core product workflows.
- Collaborate with the founding team on system architecture, including authentication, authorization, billing, permissions, integrations, and multi-tenant design.
- Build secure, scalable, and observable systems with structured logging, metrics, alerts, and rate limiting.
- Own DevOps responsibilities for backend services, including Docker-based containerization, CI/CD pipelines, and production deployments.
- Optimize PostgreSQL schemas, migrations, indexes, and queries for computation-heavy and geospatial workloads.
- Implement caching strategies and performance optimizations where required.
- Integrate with third-party APIs such as CRMs, financing providers, mapping platforms, and satellite or irradiance data services.
- Write clean, maintainable, well-tested code and actively participate in code reviews to uphold engineering quality.
Required Skills & Qualifications (Must-Have)
- 2–5 years of experience as a Backend Engineer.
- Strong proficiency in Python and Django / Django REST Framework.
- Solid computer science fundamentals, including data structures, algorithms, and basic distributed systems concepts.
- Proven experience designing and maintaining REST APIs in production environments.
- Hands-on DevOps experience, including:
- Docker and containerized services
- CI/CD pipelines (GitHub Actions, GitLab CI, or similar)
- Deployments on cloud platforms such as AWS, GCP, Azure, or DigitalOcean
- Strong working knowledge of PostgreSQL, including schema design, migrations, indexing, and query optimization.
- Strong debugging skills and a habit of instrumenting systems using logs, metrics, and alerts.
- Ownership mindset with the ability to take systems from spec → implementation → production → iteration.
Good-to-Have Skills
- Experience working in early-stage startups or building 0→1 products.
- Familiarity with Kubernetes or other container orchestration tools.
- Experience with Infrastructure as Code (Terraform, Pulumi).
- Exposure to monitoring and observability stacks such as Prometheus, Grafana, ELK, or similar tools.
- Prior exposure to solar, CAD/geometry, geospatial data, or financial/pricing workflows.
What We Offer
- Real-world impact: every feature you ship helps accelerate solar adoption on real rooftops.
- Opportunity to work across backend engineering, DevOps, integrations, and performance optimization.
- A mission-driven, fast-growing product focused on sustainability and clean energy.

About Heaven Designs
About
Heaven Designs Private Limited is a reputed solar design and engineering company headquartered in Surat, Gujarat, India. The company specializes in delivering solar preliminary design and detailed engineering services to solar EPC (Engineering, Procurement, and Construction) companies across the globe. Backed by a strong team of 50+ skilled engineers and consultants, Heaven Designs focuses on providing optimized, cost-effective solar design solutions that help EPC partners reduce project costs while maintaining high technical standards.
Committed to innovation and continuous improvement, Heaven Designs consistently upgrades its technology and infrastructure to keep pace with advancements in the solar industry. The company serves a diverse client base, including startups, small businesses, MSMEs, and large corporate solar organizations. Recognized with an industry award for excellence in solar design and engineering, Heaven Designs believes in growing alongside its clients by adding tangible value and supporting the long-term success of solar businesses worldwide.
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Job Description: Node.js Developer (3+ Years Experience)
Division/Department: Engineering
Industry: Insurance / Fintech
Employment Type: Full-Time, Permanent
Job Summary
We are looking for a skilled Node.js Developer who is experienced with JavaScript/TypeScript, databases, and modern AI development tools. You will build and maintain backend applications, design scalable systems, and use AI tools to enhance development productivity. The role involves backend development, database management, API development, and cloud deployment.
What You’ll Be Doing
Backend Development
- Build and maintain Node.js applications, services, and APIs.
- Write clean, readable JavaScript/TypeScript code.
- Create and manage REST APIs; work with GraphQL when required.
- Develop microservices and containerized applications (Docker).
- Participate in code reviews and help maintain coding standards.
Database Work
- Design database schemas for PostgreSQL, MongoDB, and Redis.
- Write optimized SQL and NoSQL queries.
- Implement indexing and manage database performance tuning.
- Handle database scaling and caching strategies.
AI Tools & Productivity
- Use AI coding assistants (GitHub Copilot, Cursor AI, Tabnine).
- Integrate AI APIs (OpenAI, Claude) into backend applications.
- Build features powered by AI/ML capabilities.
- Use AI tools to debug and enhance code quality.
Deployment & Operations
- Deploy applications on AWS, Azure, or GCP.
- Set up CI/CD pipelines (GitHub Actions, Jenkins).
- Work with Docker and Kubernetes.
- Monitor backend services and perform troubleshooting.
Job Requirements
Must-Have (2–7 Years Experience)
- Strong hands-on experience with Node.js and Express.js.
- Excellent understanding of JavaScript/TypeScript, ES6+, async/await.
- Experience with at least one major database: PostgreSQL, MongoDB, Redis.
- Knowledge of API development (REST, GraphQL).
- Hands-on experience with Git and version control.
- Experience with testing tools like Jest, Mocha, or similar.
AI Tools Experience
- Familiarity with AI coding assistants.
- Working with AI APIs (OpenAI, Claude, etc.).
- Experience using AI tools for debugging and code optimization.
- Basic understanding of prompt engineering.
Bonus Skills (Good to Have)
- Cloud platforms: AWS, Azure, Google Cloud.
- Docker, Kubernetes.
- CI/CD pipelines.
- Frontend exposure (React/Vue/Angular).
- Message queues: RabbitMQ, Kafka.
- Caching: Redis, Memcached.
- API security: JWT, OAuth2.
Mandatory Skills
Technical
- Experience building and deploying Node.js applications.
- Strong command over databases and efficient query writing.
- Comfort with AI-based coding tools.
- Ability to debug and solve backend issues independently.
Soft Skills
- Strong communication and teamwork skills.
- Self-driven and eager to learn new technologies.
- Ability to mentor junior developers (for senior positions).
You have 3 to 14 yrs of software engineering & product delivery experience with strong
background in datastructures & algorithms
• You’ve proven software development credentials having successfully built complex
products
• You are experienced with one or more general programming languages (e.g. Java, C/C++,
Go). Ability to learn other coding languages as needed.
• You’ve proven software development credentials having successfully built complex
products
• You have a strong foundation in the fundamentals of computer science, with familiarity in
data structures, algorithms and a strong command of object-oriented principles.
• You have experience in one or more of the following areas: Server Backend, Distributed
and Parallel Systems, Full Stack Development (frontend and backend), Scalable Enterprise
Platforms and Applications, Application Security and Incident Management, Android,
iOS, and Machine Learning.
• You have a spark that separates you from the crowd and ability to think out of the box and
on your feet
• You possess multi-dimensional skills that make you a valuable co-worker in a fast,
changing and ambiguous environment
• You have the ability to learn other coding languages as needed real quick
• You are comfortable in working with a team that deals with ambiguity every day
any device. Amagi helps bring entertainment to hundreds of millions of consumers leading the transformation in
media consumption. We believe in a connected ecosystem bringing content owners, distribution platforms,
consumers and advertisers together to create great experiences.
Amagi grew by 136% last year and on its way to double itself again this year. The market leader in FAST (Free
Ad-supported Streaming TV), it delivers more than 500 media brands to 1500+ end points and growing
exponentially.
We are looking for a Software Engineers to join our engineering team. You will be working with a team of
engineers in building cutting-edge next generation media technology software components using the latest cloudtech stacks.
Key responsibilities include (but are not limited to):
● Design and write with code with the cutting-edge technologies to improve the availability, scalability, latency, and efficiency of Amagi products
● Participate in code and design reviews to maintain our high development standards
● Engage in service capacity and demand planning, software performance analysis, tuning and optimization
● Collaborate with product teams to define and prototype feature specifications
● Work closely with Platform Engineering team in building and scaling back-end services as well as performing root cause analysis investigations
● Design, build, analyze and fix large-scale systems
● Learn full stack performance tuning and optimization
● Debug and modify complex, production software
You will excel at this role, if you have
● A bachelor’s/master’s degree in Computer Science, with 2 to 6 years of Experience in building highly available and scalable products.
● Have worked in product software development teams that have taken individual module-level responsibility and have taken the product to production/customer deployments
● Loves to write code in one or more of Python, Golang, RoR,
● Have worked in building back-end systems around DBMS, Caches, NoSQL, Web and App servers.
● Passionate about algorithms, design patterns, open-source technologies and in general good software
design
● Desirable to have Prior experience in working on any of the Public cloud infrastructures
Merchify is a one-stop solution for creators to start their merch store for zero investment. Our goal is to empower creators to monetize their content and grow their audience without the need for any upfront investment.
We’re in search of a back-end engineer that specializes in building highly scalable, highly available, reliable, secure, and fault-tolerant systems. As a part of the Core Backend team, you'll be working on some complex and interesting problems. With a lean team like ours, you'll have ample opportunities to work with various aspects of the application and build something meaningful.
What you'll do?
- Work closely with design, product management, and front-end teams to create REST APIs using NestJS
- Write reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Work on the implementation of security and data protection
- Review and optimize the app usage by monitoring key metrics and rectifying the issues proactively
Must haves
- 1+ years of experience in NodeJS-based frameworks like NestJS, and microservices-based architecture is a bonus.
- Understanding of OOPS concepts, persistence, threading, queuing, and caching.
- Thorough knowledge of designing, implementing and scaling relational and document-based databases
- A love for systems and an ability to think through and plan for their life cycles, edge cases, interactions, and failure modes
- First principles thinking, Excellent problem-solving ability
- A good all-rounder with a can-do, startup mentality
Nice to haves
- Experience with ReactJS
- Cloud deployment and scaling experience
Why you should join today?
Merchify wants to make a change for the better in lifelong learning. By joining at the start of the adventure you will have an opportunity to make this your own baby and have fun shaping the future of the industry.
•Web frameworks: Django, Flask
•JavaScript libraries: jQuery
•Web servers: Nginx, Apache, uWSGI
•Data stores/tools: MySQL, PostgreSQL, SQLAlchemy, Redis, MongoDB, ElasticSearch
•Virtualization: AWS, VMWare, VirtualBox, Docker
•Web scraping and browser automation
•Selenium
Good to Have Skills
•ExperiencewithFrontendJavaScriptFrameworks
•Experience with third party and OAuth implementations.
•Understanding of cloud service platforms and web service infrastructure
Must Have Traits
•Self Starter
•Able to manage projects with minimal hand-holding
•Good verbal and written communication skills
•Enthusiastic, able to research and implement new technologies
•Ability to handle high-pressure situations
Experience Specifics
•Proven expertise in product development •GoodandPracticalUnderstandingofPython(2.7,3.3+)
•Hands on with Linux systems for deploying systems and applications
About Wise
Wise is digital infrastructure for online education. Oversimplified as ‘Shopify for Tutors’ i.e., an easy to use tool for tutors to start teaching online. We have grown to 2mn users in 12 months and have much to do. We are backed by an incredible set of investors and individuals who have built product you already use. We have a small but rockstar team, cheap equity, smart money, opportunity to capture a huge market ($60bn) and a chance to make an impact while doing so.
What we need
We need you, if you are a senior software engineer with 4+ years of experience in building robust scalable systems. Work would involve building things quickly and adapting based on market feedback while ensuring the security and quality of the codebase. If you love coding and building things excites you, we would like to talk to you.
What you will need (Skills)
- Experience building microservices and distributed systems, RESTful APIs, user interfaces
- Knowledge and will of writing unit, integration tests is a must. TDD is a plus
- Preferably a polyglot: Strong command Ruby/Golang/Java/Python
- Some exposure to infra: Deployments, CI/CD setup, security. AWS exposure is good to have
- Strong database concepts. Experience with MongoDB is a plus
What you will do
- Feature analysis, hands on development, code reviews, deployment & rollouts
- Passionately maintain coding practices, quality & good design standards
- Design and develop highly scalable, available, secure and fault tolerant systems
- Actively contribute in assessing & improving/optimizing security & infrastructure
Great to have
- Sense of ownership
- Developers who can talk product and strategy
- Experience in building scalable consumer products
- Strong opinions, loosely held
Good to have
- Interest in mentorship
- Good written communication skills
- Bangalore love
Probably not ideal if
- If you have always been right about stuff in life
- No flexibility around working hours (this doesn’t mean we work long hours but if our systems get attacked in the middle of the night, we would need you to HODORR!)
Definitely get in touch if you
- Would have started the exact same company but willing to build it together with a great team
- Find our current product unbearably slow or inadequate
- Think this company isn’t going to work as it is right now
What will I be doing? 👩💻👨💻
Leading parts of the product from inception to launch, and own large parts of the product’s execution.
Working with our Sales and frontend team to build products with the goal of delighting and increasing the success of our users.
Architecting, building, testing, and releasing product-facing features.
Contributing to our side projects and free tools for the education industry.
What do I need? 🤓
1-2 years of industry experience in a software engineering role, preferably building a SaaS product. You can demonstrate significant impact that your work has had on the product and/or the team.
Deep knowledge of a high-level programming language (for example, PHP, Python, etc.) but it doesn’t need to be a language that we use here! Great people are effective and learn what we use quickly (or introduce us to better ways of working)
Deep knowledge of SQL Databases
Experience with scalable distributed systems, both built from scratch as well as on AWS primitives
Willingness to learn and use new technologies
Extremely data-driven
Ability to debug complex systems
Brownie points 🍰
Using a framework (for example, Laravel, Code Igniter, Django)
Understanding of containerisation (Docker/Kubernetes) along with ability to deploy to AWS ECS (or similar tools)
Feel free to apply even if you feel unsure about whether you meet every single requirement in this posting. As long as you're a quick learner, and are excited about changing the status quo for tech recruitment, we're happy to support you as you come up to speed with our tech stack.
Perks 😍
Flexible vacation
Take a tutorial, on us
Monthly remote meals
Tech stack 🔨
PHP
Laravel
NodeJS
VueJS
Ionic Angular
Digital Ocean
AWS
MySQL
Why Classcard? 🚀
We are still in the early stages of our journey. You will be working closely with our users, acting on both their feedback and what our data says. Things you build here will have tremendous impact on both our business and Classcard as a company.
What happens after I apply? 🤔
-
Quick phone call with a member of our engineering team to find out more about your experience and why you want to work at Classcard.
-
Video interview:
Technical discussion with a senior engineer
Pairing on an interesting problem
Meet the founders
How would you leverage your technical expertise to create extraordinary impact for our clients?
ThoughtWorks is a global software consultancy with an aim to create a positive impact on the world through technology. Our community of technologists thinks disruptively to deliver pragmatic solutions for our clients' most complex challenges. We are curious minds who come together as collaborative and inclusive teams to push boundaries, free to be ourselves and make our mark in tech.
Our developers have been contributing code to major organizations and open source projects for over 25 years. They’ve also been writing books, speaking at conferences and helping push software development forward, changing companies and even industries along the way.
You could influence the digital strategy of a retail giant, build a bold new mobile application for a bank or redesign platforms using event sourcing and intelligent data pipelines. You will use the latest Lean and Agile thinking, create pragmatic solutions to solve mission-critical problems and challenge yourself every day.
For a team to thrive, it needs active collaboration and room for healthy, respectful debate. Senior Developers are the technologists who cultivate this environment while driving teams toward delivering on an ambitious tech vision and acting as mentors for more junior-level consultants. They leverage their deep technical knowledge to solve more complex business problems and actively assess their team’s health, code quality and nonfunctional pipelines.
You’ll spend time on the following:
- You will use continuous delivery practices to deliver high-quality software as well as value to end customers as early as possible.
- You will work in collaborative, value-driven teams to build innovative customer experiences for our clients
- Create large-scale distributed systems out of microservices
- You will apply the latest technology thinking from our tech radar to solve client problems
- Efficiently utilize DevOps tools and practices to build and deploy software
- You will lead or take part in the entire cycle of software consulting and delivery from ideation to deployment and everything in between
- You will act as a mentor for less-experienced peers through both your technical knowledge and leadership skills
Here’s what we’re looking for:
- You have at least 5 years of experience with two or more development languages such as Java, C#, or Ruby
- You can skillfully write high-quality, well-tested code and you are comfortable with Object-Oriented programming
- Presence in the external tech community: you proactively share your expertise with others via speaking engagements, contributions to open source, blogs and more
- Comfortability with Agile methods, such as Extreme Programming (XP), Scrum and/or Kanban
- You enjoy influencing others and always advocate for technical excellence while being open to change when needed
- You’re willing and able to commit to travel to client sites in order to solve their business problems
- You’re resilient in ambiguous situations and can approach challenges from multiple perspectives
- Bonus points if you have working knowledge of cloud technology such as AWS, Azure, Kubernetes and Docker












