Sr. Backend Engineer (Python)

JOB DESCRIPTION:

Location: mumbai, bangalore, pune

Mode of Work : 3 days from Office

DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API

• Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
• Implement and integrate APIs using Spring Framework and Apache CXF.
• Build microservices-based architecture for scalable and distributed systems.
• Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
• Optimize performance through efficient multithreading, memory management, and algorithm design.
• Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
• Work with RDBMS (preferably Sybase) for backend data integration.
• Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
• Work in Unix/Linux environments for deployment and troubleshooting.

Required Skills & Experience:

• 3– 8 years of strong hands-on experience in Core Java, Spring boot, microservices, data structures.
• Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
• Proven experience with Spring, CXF, and REST/SOAP web services.
• Solid understanding of microservices architecture and distributed systems.
• Experience working with Sybase or other relational databases.
• Expertise in multithreading, concurrency, and high-throughput server-side development.
• Exposure to capital markets, sales & trading platforms, or similar financial services applications.
• Good working knowledge of Unix/Linux environments.
• Experience in solution architecture and design documentation is a strong plus.
• Strong problem-solving skills, analytical thinking, and a proactive attitude.
• Excellent communication and interpersonal skills to work effectively with global teams.

Preferred Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• Previous experience in investment banking, capital markets, or financial technology domains.

For more details:

Website: www.wissen.com

Wissen Thought leadership : https://www.wissen.com/articles/

LinkedIn: Wissen Technology

• Strong understanding of Core Python, data structures, OOPs, exception handling, and logical problem-solving.
• Experience in at least one Python framework (FastAPI preferred, Flask/Django acceptable).
• Good knowledge of REST API development and API authentication (JWT/OAuth).
• Experience with SQL databases (MySQL/PostgreSQL) & NoSQL databases (MongoDB/Firestore).
• Basic understanding of cloud platforms (GCP or AWS).
• Experience with Git, branching strategies, and code reviews.
• Solid understanding of performance optimization and writing clean, efficient code.
• Develop, test, and maintain high-quality Python applications using FastAPI (or Flask/Django).
• Design and implement RESTful APIs with strong understanding of request/response cycles, data validation, and authentication.
• Work with SQL (MySQL/PostgreSQL) and NoSQL (MongoDB/Firestore) databases, including schema design and query optimization.
• Experience with Google Cloud (BigQuery, Dataflow, Notebooks) will be a strong plus.
• Work with cloud environments (GCP/AWS) for deployments, storage, logging, etc.
• Use version control tools such as Git/BitBucket for collaborative development.
• Support and build data pipelines using Dataflow/Beam and BigQuery if required.
• Experience with GCP services like BigQuery, Dataflow (Apache Beam), Cloud Functions, Notebooks etc
• Good to have Exposure to microservices architecture.
• Familiarity with Redis, Elasticsearch, or message queues (Pub/Sub, RabbitMQ, Kafka).
• 
  

ABOUT UNRAVEL CARBON

Unravel Carbon enables companies to assess their carbon footprint by tracking their digital financial footprint with its proprietary carbon emission factor model; making it easy, fast and convenient to become climate positive.

We aim to accelerate the participation of all companies, big and small, in the global fight against climate change. And we want to do it the 21st century way—autonomous, painless, and beautiful.

Unravel Carbon consists of a team of software engineers, data scientists, founders and climate experts with a passion to solve the world’s most pressing issue—climate change. Collectively, our leadership team has launched and invested in multiple companies, and are now combining their experience and knowledge here at Unravel.

We are backed by some of the world’s best funds and investors and are part of Y Combinator’s W22 batch.

Unravel Carbon was founded in 2021 with headquarters in Singapore.

Unravel Carbon on LinkedIn: https://www.linkedin.com/company/unravelcarbon/

ABOUT THE ROLE

We are looking for early members of our India team. You will be part of the team that establishes our India product development team. We are looking for candidates who have high potential, are excited about tackling the climate change problem and are excited to grow in a high-growth environment while working with the Singapore HQ.

A junior/mid-level backend software engineer. Must be comfortable to work in a small development team and have the initiative to work alone on smaller problem sets. Must be passionate about climate-tech for a better future.

• Build backend server applications using Flask/DJango framework
• Collaborate with the data team to integrate data pipelines into our backend system.
• Collaborate with the front end team.
• Analyze processes and code to troubleshoot problems and identify areas of improvement.
• Participating in continuing education and training to remain current on best practices, learn new programming languages, and better assist other team members.
• Take lead on projects, as needed.

ABOUT YOU

• Willingness to learn, be a self-starter, and thrive in uncertainty; you would be one of the first few employees at an early stage startup, be prepared to venture into unknown territory, collaborate and learn
• Meticulous and detail-oriented
• Required skills:
• Python Backend Development Frameworks (Flask, Django). Backend development in other languages/frameworks can be considered too
• NoSQL databases (MongoDB)
• SQL databases (MySQL, Postgres, DuckDB)
• Running/managing Linux servers on Cloud services (AWS/GCS/Azure)
• Optional skills:
• Front End Web development (ReactJS)
• Python data science tools (Pandas, Numpy, Scipy)
• Python NLP tools

YOUR WORK STYLE

• An understanding of agile product development
• Self exploration and self learning of the latest technologies and applying them to solving the technical challenges our team face
• Self­-starter (proactive and independent) with an ability to prioritize different assignments and tasks to meet deadlines
• Comfortable working in a collaborative environment
• Eager to think outside of the box and creatively problem-solve

YOUR PREFERRED BACKGROUND

A Bachelor’s Degree in Computer Science, IT, or related discipline AND 1+ years working experience in the IT industry. 

WHAT WE OFFER YOU

We offer an exciting challenge for a purpose-driven person who thoroughly enjoys learning and takes up responsibilities in a multi-cultural, primarily virtual, and pioneering organization.  

We nurture a culture that allows you to thrive, where your skills can be honed and your ideas will be heard, and where collaboration across teams and with global partners is the default.

1. PHP Laravel
2. Javascript
3. Jquery,
4. CSS,
5. HTML
6. Following optional skill (good to have)
7. MongoDB,
8. Node js
9. Must know the use of multi_curl for parallel multiple API processing.

Quoality- A Modern Operating Infrastructure for Hospitality Businesses to help them improve the guest experience and generate additional revenue.

Launched in 2021, Quoality is a Hospitality Tech company backed by a US-based Newchip Accelerator. Our mission is to equip businesses with the tools they need to grow. 

By providing tools, insights, and education with minimal effort on the business's part, the barrier to making actionable business decisions is lowered dramatically. Everything we do is driven by this mission. Everything we do needs to positively answer the question, "Does this help businesses grow?"

Product Demo: https://www.youtube.com/watch?v=gKklkRYKkC4&;t" target="_blank">https://www.youtube.com/watch?v=gKklkRYKkC4

Quoality Blogosphere: https://medium.com/quoality" target="_blank">https://medium.com/quoality

Oh, this is our favorite part. We’ve seen companies that write 'templatized' BS for this section; stuff that’s never followed in reality.

Not us. Here are some of our core values to give you a sense of who we are as a team:

• First and foremost, we’re super transparent. We all know what everyone’s working on, how’s the company doing, and the whole shebang.
• We’re all super chill. 
• Work time ain’t playtime. We take our work very seriously. We’re a small bunch on a mission to change the guest experience in the hospitality industry, once and for all.
• Deadlines are a thing for us. We are super punctual.
• We know what we are working on and aren’t clueless.
• We’re more friends than colleagues.
• Monthly 1:1s with the founders where you can directly share & receive feedback.

Not convinced yet? Okay, here’s the fun stuff:

• Flexible leave policy. Yeah, it’s truly flexible. We trust you.
• We have a flexible remote work policy in India.  Work from the beautiful beaches of Goa or the stunning mountains of Manali, we’re all good.
• Annual workstations at exotic destinations. Subject to change and hitting milestones.
• Allowances to choose your coworking space (if you want), courses & any tool that you think is beneficial to succeed in this role.

• Write code that will impact the businesses of thousands of hotels, hostels, and vacation homes across the globe.
• Collaborate with Frontend to spec, write, test, and deploy API endpoints.
• Implementation of a robust set of services and APIs that work on our data pipelines.
• Build all support infrastructure to scale our data delivery pipelines - endpoints, security, logging, messaging.
• Product development activity includes data querying from our various stores, real-time analytics, ML algorithms.
• Developing & Integrating of the front-end and back-end aspects of the web application
• Optimization of the application for maximum speed and scalability.
• Brainstorm features with the product team and guides decisions based on your knowledge of the codebase.
• Take full ownership of the module starting from architectural and design decisions to shipping.
• Like the work you do, enjoy collaborating with your coworkers, communicate as much as you can, and have fun. 
  
  

• Upto years of relevant work experience.
• Understanding the nature of asynchronous programming and its quirks and workarounds.
• You possess strong computer science fundamentals: data structures, algorithms, distributed systems, and information retrieval.
• You have a good understanding of multi-process architecture and the threading limitations of NodeJs and Express frameworks.
• Understanding of fundamental design principles behind a scalable application.
• You have basic understanding of relational databases as well as key-value databases and are capable of designing scalable database models based on the product requirements.
• Familiarity with REST API development standards, protocols (HTTP, WebSockets and more)
• You’re comfortable picking up new stacks and choosing the right tool to get the job done.
• You are open to learning new stuff and avoid internal politics. (super important).
• You are humble, kind, and are open to feedback.(super duper important).

• Entrepreneurial spirit, Product Thinker, and ‘Can-Do' attitude.
• Passionate about leveraging technology for supporting product delivery in the Hospitality space.
• Operating style suited to working in a startup environment, where teamwork and resourcefulness are highly valued.
• Excellent leadership skills, including the ability to manage multiple assignments at a time.

Yes, we do have a process, and it’s simple.

• Step 1: You apply for the job.
• Step 2: Quick intro call with the founders.
• Step 3: Solve an assignment.
• Step 4: A round where we evaluate your assignment along with you.
• Step 5: One round of interviews to gauge if you are a good culture fit.
• Step 6: Job Offer (contingent on the above steps).
• Step 7: Welcome to the Quoality! 🙂

At DotPe, we rely on our dynamic team of engineers to solve the many challenges and puzzles that come with our rapidly evolving technical stack. We’re seeking a Technical Lead Backend who is ready to work with new technologies and architectures in a forward-thinking organization that’s always pushing boundaries. Here, you will take complete, end-to-end ownership of projects across the entire stack. Our ideal candidate has experience building products across the stack and a firm understanding of web frameworks, APIs, databases, and multiple back-end languages. You’ll be joining a small team working at the forefront of new technology, solving the challenges that impact back-end architecture, and ultimately, delivering amazing global user experiences.

Technical Lead Backend

Responsibilities:

• Build cutting-edge, scalable systems by writing simple and efficient code, and pushing your design and architecture limits for new product development
• Optimize APIs for applications while creating and maintaining unit/integrations test suites
• Participate in all aspects of agile software development including design, implementation, and deployment
• Design and provide guidance on building end-to-end systems optimized for speed and scale
• Develop new features and infrastructure development in support of rapidly emerging business and project requirements
• Assume leadership of new projects from conceptualization to deployment
• Ensure application performance, uptime, and scale, maintaining high standards of code quality and thoughtful application design
• Work with agile development methodologies, adhering to best practices and pursuing continued learning opportunities
• Work and collaborate closely with tech, product, and business teams to understand requirements and translate them into quality software products

We are looking for motivated individuals who are keen to work on Cloud or Big Data services or have worked on Cloud and Big Data. If you want to work in a start-up culture and are ready for the challenge, then join us on our exciting journey.

Responsibilities:

• Design, code and debug cloud-native applications.
• Evaluate and identify new technologies for implementation
• Determine operational feasibility by evaluating analysis, problem definition, requirements, solution development and proposed solutions
• Write well designed, testable, efficient code
• Develop software verification plans and quality assurance procedures
• Serve as a subject matter expert

• 5+ years of relevant experience in software development

• Deep understanding of public cloud infrastructure (AWS, Azure or Google)

• Experience with large scale distributed systems

• Ability to troubleshoot distributed systems

• Prior experience with data encryption, TLS/SSL is a strong plus

• Experience with Docker and Kubernetes is a plus

• Deep experience with Java

• Excellent communication (writing, conversation, presentation) skills, consensus building, Quick learner
  Good to have experience in Production support - Tier 4
  
  Experience with these technologies are a plus: AWS, Microsoft Azure, Google Cloud, Cloudera, Snowflake, Mongo DB, Oracle, Databricks, Datastax, Confluent