Backend Lead

JOB DESCRIPTION

Experience: 5+ years

Location: Bangalore

Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting. 

Required Skills:

• Exp. - 5+ years
• Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development.
• Basic working knowledge of Unix/Linux.
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.

About the role:

We’re looking for a highly skilled and self-driven Node.js Software Development Engineer (SDE-2) to join our team on a contract basis. You’ll be responsible for building scalable backend services and APIs that power our products, with a focus on performance, security, and reliability.

As an SDE-2, you’re expected to take ownership of features end-to-end, mentor junior developers when needed, and contribute to architectural discussions.

Key Responsibilities

• Design, build, and maintain RESTful, gRPC, and/or GraphQL APIs using Node.js
• Write clean, modular, and testable code
• Collaborate closely with product managers, frontend engineers, and DevOps teams
• Optimize existing codebases for performance and scalability
• Integrate with third-party services and internal microservices
• Participate in code reviews and ensure coding best practices are followed
• Write unit and integration tests (e.g., using Jest, Mocha, etc.)

Required Skills & Experience

• 3–5 years of experience building production-grade backend applications
• Strong proficiency in Node.js (Express.js, NestJS, or similar frameworks)
• Solid understanding of JavaScript/TypeScript
• Experience with MongoDB, PostgreSQL, or MySQL
• Experience building APIs that scale — rate limiting, caching, pagination, etc.
• Good understanding of async patterns (Promises, async/await, queues)
• Familiarity with CI/CD, Git workflows, and containerized deployments (Docker)
• Experience working with cloud services (AWS/GCP/Azure)

Nice to Have

• Experience with microservices architecture
• Familiarity with message brokers (Kafka, RabbitMQ, etc.)
• Experience working in Agile or Scrum teams
• Contributions to open-source projects or tech blogs

FirstFiling is a FinTech startup that is managed, operated, and driven by Chartered Accountants, Company secretaries, IT engineers, and Lawyers. We provide registration and financial compliance services to businesses and individuals across India.

Our aim is to simplify the lives of people by helping individuals and businesses with mandatory compliances, filings, and statutory requirements while promoting financial literacy among the masses. 

Role: Backend Developer (2 openings)

Job Summary
- Expand the product to suit the needs of all kinds of travellers. From family travellers to hardcore backpackers and from free independent travellers to those who need a more guided approach to planning their trip. 
- Launch across more countries. This means adding support for more geographies, things to do, weather, currencies and payments, transport and accommodation. 
- Scale it up to serve millions of users a year, from across the globe. We are seeing decent growth, but it is time to up the game.

Responsibilities and Duties
How you'll add value: 
- Own the architecture and design decisions that go into shaping our backend microservices 
- Build and ship robust features. 
- Work with web and mobile engineers to design and build APIs to power the traveler and influencer applications. 
- Help us scale out to multiple geographies and serve millions of travelers
Required Experience, Skills and Qualifications
- An innate desire to grow. Both personally and with respect to the value you add to other people's lives. 
- 4+ years industry experience working with golang/Django
- Sound understanding of CS fundamentals. We don't expect you to remember every algorithm by heart. But if you know how to find the most appropriate one for any given problem, let's talk. 
- Personal projects that show an aptitude for technical excellence and product sense. 
- Interest in contributing to open source projects 
- Bonus points if you have an interest in the philosophy behind technologies. - You are intrigued by why did people develop certain technologies the way they did.
Benefits
- Work with a bunch of amazing people on a challenging problem. 
- 1 backpacking trip each year to travel outside India. We don't allow you to travel, we WANT you to travel. 
- Stock. 
- We don't mind work from home/cafe/some random city in the world as long as your work and your team is not disrupted. 
- We don't have a leave policy (there is a guideline for legal reasons) but you are free to take as much personal time as you need as long as you get your job done.

Job Type: Full-time

Salary: ₹2,000,000.00 to ₹3,000,000.00 /year

• Minimum 2 years experience on MEAN Stack
• Extensive hands-on experience in Node JS/Express/Hapi JS, Moleculer and NoSQL DBs (Mongodb and Redis are preferred)
• Strong coding and designing skills
• Working understanding of Continuous Integration and Continuous Deployment concepts and tools such as (Gitlab CI/CD), Development tools (Git), Application Servers (nginx, Apache)
• Experience in consuming and developing secure RESTful API/web-services
• Comfortable using Unix / Linux machines from command prompt
• As a full-stack architect in the team, you'll bring your ideas to life on a technology stack of Node JS and NoSQL Databases among others.
• We are looking for tech geeks who are hands-on and in love with building scalable, distributed and large web / mobile products.
• You must be an excellent problem solver with passion to self-learn and implement backend technologies
• You would be responsible for the architecture design, code review and technology build and deployment activities of web/mobile applications.
• Own the product development from scratch - Architect scalable, distributed and large scale web and mobile solutions from scratch
• You would be responsible for writing SRS and require strong technical writing and communication skills
• You would be responsible for managing and mentoring your team members and help them advance in their learning and career goals
• Ensure test driven development (TDD) methodologies are deployed to execute project
• Define and ensure right coding practices
• Code for fresh development and to troubleshoot and resolve issues
• Lead web development efforts, including hiring, mentoring and advising peers

• As a Senior Software Engineer you will work closely with the Tech Lead, and the rest of the engineering team to build and scale a data-driven platform. This role will act as a great springboard to accelerate career growth & transition into a Tech Lead level role.
• Your primary focus will be the development of server-side logic, building new services and APIs, developing UI components, supporting the maintenance of current APIs, reviewing work, and improving the performance and reliability of our systems as we rapidly scale our product and organization.
• An effective Senior Software Engineer will be a self-motivated learner; a highly creative engineer having obsessive attention towards detail and thoroughness.

Must Haves

• You’ve been building web applications professionally for 5+ years
• You’re proficient in NodeJS, TypeScript, PostgreSQL, and MongoDB
• You possess strong OOP and design pattern knowledge
• Familiar with modern engineering practices: Code Reviews, Continuous Deployment, Automated Testing, etc
• You write understandable, testable code with an eye towards maintainability and experienced with TDD (Test Driven Development)
• You’ve the ability to build RESTful APIs
• Explaining complex technical concepts to designers, support team, and fellow engineers is not a problem for you
• Well versed with the fundamentals of computer science and distributed systems

Nice-to-haves

• FrontEnd experience; have built applications in either: React, Vue, Angular, or Svelte
• Startup experience, preferably a tech startup
• Open Source contributor
• You have experience with other programming languages -- e.g. Python, Ruby, PHP, Go, C, etc.
• Passionate about/experienced with open source and developer tools
• You have a bachelor's degree in Computer Science, Engineering or related field, or equivalent training, fellowship, or work experience

Benefits

• Feel good factor / impact driven work- Be part of the journey that is creating an impact in people’s lives after retirement. The work we do has a direct impact on the size of someone’s retirement pot
• Ownership driven work- you own problems within the organisation and not an implementer of someone else’s idea. You have the ability to design solutions and work with multiple stakeholders to implement them
• Job stability- ClearGlass is very well funded by top tier VCs and can provide job stability in the COVID world
• Stock Options- we would love every employee of ClearGlass to have stock options
• Top-of-the-line gear- to help you be super-productive while working. No one likes a slow laptop
• Flexible work environment- we are working from home currently but will slowly move to a hybrid set-up; we offer support (incl. financial) to set-up your home office

Requires a bachelor's degree in area of specialty and experience in the field or in a related area. Familiar with standard concepts, practices, and procedures within a particular field. Relies on experience and judgment to plan and accomplish goals. Performs a variety of tasks. A degree of creativity and latitude is required. Typically reports to a supervisor or manager.

Designs, develops, and implements web-based Java applications to support business requirements. Follows approved life cycle methodologies, creates design documents, and performs program coding and testing. Resolves technical issues through debugging, research, and investigation.

Additional Job Details:

Strong in Java, Spring, Spring Boot, REST and developing MicroServices.

Knowledge or experience , Cassandra preferred

Knowledge or experience on Kafka

Good to have but not must

Good to know:

Reporting tools like Splunk/Grafana

Protobuf

Python/Ruby