Senior Software Engineer -Backend (Python,C++)

Role & Responsibilities

Take end-to-end ownership of critical backend services — from architecture and development to deployment and scale.

Design systems for performance, reliability, and observability. Identify bottlenecks and eliminate them proactively.

Collaborate with product and design to deeply understand user pain points and build the right solutions.

Work independently and own complex modules with minimal oversight.

Champion clean, maintainable code and help set a high bar for engineering excellence across the team.

Stay up-to-date with new tools, technologies, and backend trends — and bring the best ideas into our stack.

Ideal Candidate

2+ years of backend development experience, ideally with Kotlin and Spring Boot (or willingness to ramp up quickly).

You’ve worked in fast-moving teams and thrive when given room to figure things out.

You take initiative and can drive complex modules to completion without needing constant guidance.

Strong with both low-level and high-level design; you know how to build scalable, reliable RESTful APIs.

Proficient with relational databases and aware of common performance pitfalls.

Confident with debugging and optimizing — memory leaks, latency issues, and other hard-to-find problems don’t scare you.

You write clean, testable code and know how to leave systems better than you found them.

You bring a product mindset — caring not just about what’s built, but why and how it delivers value to users.

Job Description

We are looking for a hands-on Tech Lead – Java with strong software engineering fundamentals, a deep understanding of Java-based backend systems, and proven experience leading agile teams. This role involves a balance of individual contribution and technical leadership — mentoring developers, designing scalable architectures, and driving the success of product delivery in fast-paced environments.

Key Responsibilities

• Lead the end-to-end design, development, and deployment of Java-based applications and RESTful APIs.
• Collaborate with product managers and architects to define technical solutions and translate business requirements into scalable software.
• Guide and mentor team members in best coding practices, design patterns, and architectural decisions.
• Drive code reviews, technical discussions, and ensure high code quality and performance standards.
• Troubleshoot critical production issues and implement long-term fixes and improvements.
• Advocate for continuous improvement in tools, processes, and systems across the engineering team.
• Stay up to date with modern technologies and recommend their adoption where appropriate.

Required Skills

• 5+ years of experience in Java backend development with expertise in Spring/Spring Boot and RESTful services.
• Solid grasp of Object-Oriented Programming (OOP), system design, and design patterns.
• Proven experience leading a team of engineers or taking ownership of modules/projects.
• Experience with AWS Cloud services (EC2, Lambda, S3, etc.) is a strong advantage.
• Familiarity with Agile/Scrum methodologies and working in cross-functional teams.
• Excellent problem-solving, debugging, and analytical skills.
• Strong communication and leadership skills.

About HummingWave

HummingWave is a leading IT product development company specializing in building full-scale application systems with robust cloud backends, sleek mobile/web frontends, and seamless enterprise integrations. With 50+ digital products delivered across domains for clients in the US, Europe, and Asia-Pacific, we are a team of highly skilled engineers committed to technical excellence and innovation.

Thanks

5 years in software development (Minimum 3 years)

Strong expertise in Ruby on Rails (3-5 years)

Knowledge of Python is a plus

hashtag

#Key hashtag

#Skills:

Proficiency in scalable app techniques: caching, APM, microservices architecture

Ability to write high-quality code independently

Experience mentoring junior engineers (0-2 years of experience)

What We Offer:

An opportunity to work with a dynamic team

A challenging environment where your skills will be put to the test

A chance to make a real impact by guiding and mentoring others

Ready to make your mark? If you're based out of or willing to relocate to Gurgaon and have the experience we're looking for, apply now!

• Hands-on experience in backend programming languages.
• Experience in Python 3.X & Django is a must. Knowledge of .NET, Java, PHP is an added advantage.

• Hands-on experience in front-end technologies like Angular, jQuery, JavaScript, HTML, CSS, SCSS, etc.

• Experience with leading technical teams and acting as a technical mentor.
• Experience in client communication & reporting to the client-side management team.
• Experience in AWS is an added advantage.

Responsibilities

• Build and mentor the platform team at Checko.
• Own the design, development, testing, deployment, and craftsmanship of the team’s infrastructure and systems capable of handling massive amounts of requests with high reliability and scalability
• Leverage the deep and broad technical expertise to mentor engineers and provide leadership on resolving complex technology issues
• Entrepreneurial and out-of-box thinking essential for a technology startup
• Guide the team for unit-test code for robustness, including edge cases, usability, and general reliability

Requirements

• Must have design, development, testing, deployment of systems capable of handling massive amounts of requests with high reliability and scalability
• Must have strong command in writing production-level code in Java or Python including skills in debugging, performance analysis/optimization and memory usage optimization
• Must have worked with real-time web/mobile applications and event-driven architectures
• Must have experience working with relational and non-relational databases and understanding their data models and performance tradeoffs.
• Must have solid engineering principles and a clear understanding of data structures and algorithms
• Should have knowledge of service-oriented architecture, caching techniques, micro-services, and distributed systems
• Should have basic understanding of C++/reactJS/Angular/Node

Desired Skills and Experience

Algorithms, debugging, performance optimization on low-end processors, data structures, REST, service-oriented architecture.

Key Responsibilities 

• Build and create Credflow Product - Do development on our tech Stack 
• Understand requirements from the product manager and sometimes talk to customers to understand the exact requirement and develop insights. 
• Maintain the product and optimize over time for performance
• Identify needs of the stakeholders and work with technology and management team to build future timeline of products and features
• Be the go-to person for all technology related requirements, queries, discussion etc
• Develop a complete analytics framework as the product evolves.

What we seek

• We are looking for someone who is a hustler and is deeply passionate about solving technology-led complex problems
• The person should be able to take ownership of work in a highly challenging and dynamic startup environment

Benefits

• Chance to be with the right team, at the right time
• Work as part of the core team and experience the aspects of growing a business exponentially
• Get a deep understanding of the Fintech domain and unleash your potential to create an impact. 

Qualifications and skills

• Undergraduate/Graduate degree from an engineering college
• Has full stack proficiency, managing large amounts of data and prior exposure to backend, web frontend, mobile apps etc. 
• Full Stack Proficiency on Node.JS, React.JS
• SQL
• In memory data stores like Redis
• Experience in AWS (preferable)

Experience

2-4 years of experience 

Preference

Previous experience in a startup or as an entrepreneur