
Lead Software Engineer - Backend
at helps travellers discover & book the most incredible tours
Lead Software Engineer - Backend
It is evolving the way people discover the world by connecting them with exceptional experiences in their city at the push of a button. We are building a magical platform that gets everyone to head out and have fun in a matter of seconds; no matter where you are and what you want to do. We are combining a delightful product experience, data-driven decisions, sophisticated supply side logistics network, and world-class operations to solve a huge basic human problem: how do we have a good time?
We’re growing rapidly with over $200M in annualized sales, 150,000 monthly transactions and profitable unit economics. We are backed by some of the finest investors in Silicon Valley & India.
We like to solve real-world problems in the simplest, most elegant manner possible. We’re looking for a QA Lead with the ability and passion for building solutions to people-centered problems that are created at the intersection of human behavior and technology. You should also be capable of building and mentoring a fast-growing passionate, young, and talented team. We love folks who have a sense of humor and know how to have fun.Dream, build and iterate. That's our mantra. Because good just isn't good enough.
👩💻 The Role
- Full responsibility of designing and building core modules on the application and infrastructure layer.
- Lead a fast-growing team of young, passionate, talented and fun loving superstars.
- Solve challenging architectural and design problems.
- Get your hands dirty with clustering, replication, databases, build systems and infrastructure automation etc.
- Be responsible for building concurrent, performant and scalable services which will power the entire Headout ecosystem.
- Build and contribute to open-source libraries and components.
🌟 Our Dream Engineer
- A penchant for learning and building with new technologies and frameworks.
- You love working with people and have worked in a lead position in the past.
- A knack for writing the most performance optimized code along with it being modular and scalable.
- No challenge is too big to solve; love thinking product and excited to ideate & build stuff all by yourself.
- You're interested in being an early employee at a growing company, with the influence and responsibility that entails.
- You have broad and deep knowledge across a variety of contemporary technologies.
💝 We like
- Strong CS fundamentals, good working knowledge of classic algorithms and data structures.
- 2+years experience developing server-side technologies using any language or framework.
- Excellent communication, collaboration and people management skills.
- Experience working with Spring, Relational Databases, Concurrent Programming, NoSQL flavors, AWS.
- Experience designing scalable, fault-tolerant systems and databases.
- Experience with setting setting up systems and infrastructure.
- Solid understanding of how the web works and its underlying communication protocols.
- People who can't live without solving that algorithm problem that they just stumbled upon.
- People who will give up anything to squeeze in that last bit-level performance.
- Anything else than can surprise us.
- Nice to Haves: An interest in travel, local experiences & hospitality.

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Job Requirements for Java Developer Roles
* Strong hands-on expertise in Java programming.
* In-depth understanding of Java garbage collection mechanisms and their impact on application performance.
* Ability to write clean, efficient, and maintainable code.
* Familiarity with best practices for performance optimization.
* Strong problem-solving skills and attention to detail.
Please note that you will have to attach the following documents after Round 1 that will be needed for the client submission:
- LWD confirmation
- PF service history
Mode of work: Hybrid weekly 3 Times.
While you may already know about Wissen and the company history, here is a quick rundown for you.
About Wissen Technology:
• The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015.
• Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains. We help clients build world class products.
• Our workforce consists of 550+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.
• Wissen Technology has grown its revenues by 400% in these five years without any external funding or investments.
• Globally present with offices US, India, UK, Australia, Mexico, and Canada.
• We offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
• Wissen Technology has been certified as a Great Place to Work®.
• Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.
• Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.
We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, MSCI, StateStreet, Flipkart, Swiggy, Trafigura, GE to name a few.
Website : www.wissen.com
Strong Full stack/Backend engineer profile
Mandatory (Experience): Must have 2+ years of hands-on experience as a full stack developer (backend-heavy)
Mandatory (Backend Skills): Must have 1.5+ strong experience in Python, building REST APIs, and microservices-based architectures
Mandatory (Frontend Skills): Must have hands-on experience with modern frontend frameworks (React or Vue) and JavaScript, HTML, and CSS
Mandatory (Database Skills): Must have solid experience working with relational and NoSQL databases such as MySQL, MongoDB, and Redis
Mandatory (Cloud & Infra): Must have hands-on experience with AWS services including EC2, ELB, AutoScaling, S3, RDS, CloudFront, and SNS
Mandatory (DevOps & Infra): Must have working experience with Linux environments, Apache, CI/CD pipelines, and application monitoring
Mandatory (CS Fundamentals): Must have strong fundamentals in Data Structures, Algorithms, OS concepts, and system design
Mandatory (Company) : Product companies (B2B SaaS preferred)
Preferred
Preferred (Location) - Mumbai
Preferred (Skills) : Candidates with strong backend or full-stack experience in other languages/frameworks are welcome if fundamentals are strong
Preferred (Education) : B.Tech from Tier 1,Tier 2 institutes
Job Description
Roles and Responsibilities
· Design, Code, test, debug, implement and document complex WSO2 sequences.
· Monitoring and logging tool stacks - Splunk/ELK/Prometheus, Grafana 4 Design, Code, test, debug, implement and document complex WSO2 sequences.
· Perform Build activities for WSO2 ESB Middleware integration, involves writing XSLT, ESB coding, configuration, and Analysis activities.
· Trouble shooting various problems in different stages of development using logs files, Traces and Log Analyzer.
· Responsible for understanding the requirement, solution design, coordinate the development and testing activities (end to end)
· Guide the team regarding WSO2 platform best practices, framework, reusable artefacts and ensure code quality and timely deliverables.
· Work with functional and technical customers to determine solutions that drive additional business value.
· Work with Github, Azure Devops and CI tools to automate dev, build, deployment and testing.
· Good knowledge in messaging brokers: WSO2 Message Broker, Apache Kafka.
· Monitoring the server (Monitoring logs and WSO2 metrics).
· Desired Candidate Profile
Desired Candidate Profile
· Candidate must have minimum 2+ years of hands-on experience in WSO2, preferably with WSO2 certification.
· Extensive experience in Integration by using WSO2 Product Stack (API Manager 2.6/3.x, Enterprise Integrator 6.5 and Identity Server 5.7.0)
· Experience in Implementing APIs in WSO2 EI and On-boarding APIs into WSO2 API Manager
· Experience in WSO2 API Manager for designing API facades and designing and implementing API Proxies.
· Hands-on experience in designing and developing high volume web services using API Protocols and Data Formats (REST, JSON, SOAP & XML).
· Must have hands on experience / knowledge with CI tools to automate dev, build, deploy.
· Experience in programming languages: Java, JavaScript, Python
· Experience in on boarding web applications into WSO2 Identity Server for authentication and authorizatio
Qualifications
• Minimum of a Bachelor's or Master’s degree in Computer Science, or a related four-year degree.
• 4 years of hands on experience in Integration
Our ideal candidate for this role is an entrepreneurial and creative out-of-the-box thinking tech geek with a get-things-done attitude, who wants to thrive in a fast-paced international environment.
Desired Candidate Profile :
• Expertise in PHP and Laravel or CodeIgnitor, MySQL or PostgreSQL, Nginx, LEMP setup
• Developing REST APIs & integrating 3rd party APIs (oAuth 2.0), Git
• Hands-on experience in application deployment on linux servers
• You can easily navigate volatile environment where you are constantly getting challenged to push your own boundaries to make sense of ambiguous and complex signals of uncertainty into simple winning outcomes.
• What separates you from other developers is your relentless drive for running new tests and experiments on a regular basis.
• You love programming, but even more, you actually love implementing changes based on user data and create highly scalable technology based solutions.
If you are qualify and are excited about joining us, read about our functional asks below:
• Participate in the entire product development lifecycle, focusing on coding and debugging.
• Translate high level business problems into scalable solutions. These include building self learning modules for dynamic pricing, contextual recommendations, in-house analytics, advanced real-time backend systems, etc.
• Develop Web APIs and end-to-end web services to support various internal & external.
• Develop unit test plans to deliver quality components. • Building reusable code and libraries for future use.
• Optimization of the software platform for maximum speed and scalability.
• Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
• Developing ideas for new programs, products, or features by monitoring industry developments and trends.
• Perform UI tests to optimize performance.
• Provide training and support to internal teams.
• Follow emerging technologies.
Role Description
This is a full-time hybrid role for a Python Developer. The Python Developer will be responsible for back-end web development, software development, object-oriented programming, programming, and databases. The role is located in Navi Mumbai but offers flexibility for some remote work.
Qualifications
- Back-end web development and software development skills
- Proficiency in object-oriented programming and programming languages, specifically Python
- Experience with databases, such as MySQL and PostgreSQL
- Experience with source code management tools, such as Git
- Strong problem solving and analytical skills
- Bachelor's degree in Computer Science, Computer Engineering, or related field
- Experience with algorithm design and analysis is a plus
- Experience with financial markets and trading is a plus
Required Skills:
- Candidate must have 3-4 years’ experience .
- Proficiency in Python programming language
- Strong knowledge of Django and Flask frameworks
- Experience in developing and maintaining backend applications
- Understanding of RESTful APIs and database management
- Familiarity with version control systems, such as Git
- Good problem-solving and communication skills
- Proficiency in Python programming language
- Strong knowledge of Django and Flask frameworks
- Experience in developing and maintaining backend applications
- Understanding of RESTful APIs and database management
- Familiarity with version control systems, such as Git
- Good problem-solving and communication skills
Your responsibilities as a backend engineer will include:
- Back-end software development
- Software engineering and designing data models and write effective APIs
- Working together with engineers and product teams
- Understanding business use cases and requirements for different internal teams
- Maintenance of existing projects and New feature development
- Consume and integrate classifier/ ML snippets from Data science team
What we are looking for:
- 4+ years of industry experience with the Python and Django framework.
- Degree in Computer Science or related field
- Good analytical skills with strong fundamentals of data structures and algorithms
- Experience building backend services with hands-on experience through all stages of Agile software development life cycle.
- Ability to write optimized codes,debug programs, and integrate applications with third party tools by developing various APIs
- Experience with Databases (Relational and Non-Relational). Ex: Cassandra, MongoDB, Postgresql
- Experience with writing REST-APIs.
- Prototyping initial collection and leveraging existing tools and/or creating new tools
- Experience working different types of datasets (e.g. unstructured, semi-structured, with missing information)
- Ability to think critically and creatively in a dynamic environment, while picking up new tools and domain knowledge along the way
- A positive attitude, and a growth mindset
Bonus:
- Experience with relevant Python libraries such as Sklearn, NLTK, tensorflow, HuggingFace Transformers
- Hands on experience in Machine learning implementations
- Experience with Cloud infrastructure (e.g. AWS) and relevant microservices
- Good with Humor and Team player
We are looking for a motivated and talented individual with extensive experience in developing software. You will take an experienced and influential role in contributing to designing, developing and delivering various applications and features to meet performance, scalability and feature requirements in support of the management of unmanned retailing kiosks.
If you want your software to have a long-lasting impact on the business software space, you should consider joining our expanding and exciting organization.
Requirements:
- J2EE - Sprint Boot Microservices
- 2+ years of experience in Java, Spring and Spring boot development (J2EE, J2SE 8)
- Degree, diploma or Certificate in Computer Science or IT.
- Extensive experience with Spring, Spring Boot Micro Services, JPA, Hibernate
- Understanding of Spring Boot 2.x , Microservices and higher with the ability to create an initial project with the correct starter modules.
- Extensive experience in REST and SOAP Webservices Services • Excellent knowledge of databases( PostgreSQL, My SQL)
- Experience in testing tools (JUnit, SOAP UI, Postman)
- Experience in building tools – Maven, Gradle
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience in web application servers - Tomcat etc
- Understanding of Agile Development methodology – SCRUM
- Understanding of continuous integration - Jenkins and Code versioning tools - Git
• Strong technical experience with Java 8 and above
• Sound understanding of Database concepts & experienced with MySQL.
• Strong technical experience with JavaScript/Ajax/jQuery
• Good knowledge of Angular 2+ version.
• Good knowledge of REST APIs and Spring Boot.
• Awareness with any of version control systems like Git/SVN/TFS/VSS etc
• Awareness and exposure of AWS architecture components such as S3, SQS, Lambda, EKS etc
Good to Have:
• Knowledge of Docker and Containerization.
• Working in Agile env will be plus.
• Understanding of Code Optimization techniques, Code coverage tool and code analysis tool.
• Working knowledge of CI/CD process.
• Experience of onshore/offshore team collaborations.
• Makes a valuable contribution to team objectives, displays trust and mutual understanding, accepts constructive feedback, and handles confrontation constructively
- B.E/B.Tech or any relevant Masters degree from reputed college
- 2 to 4 years of experience with Java / J2EE application development stack
- Experience with: Spring framework(Core, JPA, Security, Boot), Hibernate, Secure APIs using JWT/OAUTH
- Good understanding of OOPS concepts
- Proficient understanding of code quality standards
- Solid experience in design, coding, unit testing and debugging
Good to have: Optional
- Working experience with microservices, sonar, docker, K8s, jenkins
- Knowledge of AWS cloud
Responsibilities
- You will design and develop large scale distributed services
- You will analyse and improve the efficiency, scalability, stability, and security of the platform as a whole.
- You will act as the primary owner of one or more components while driving innovation in your area of ownership
- You will proactively research & evaluate new tools, technologies, and techniques to improve the value of the system.
- You will work with engineering leadership in solving and architecting solutions for challenging or complex development issues.
- You will work independently and handle dependencies with very minimal oversight
- You will take initiatives in developing and maintaining integrations of best practices within the back-end.
- You will help identify systemic issues, performance bottlenecks and work on design/architect improvements.
Requirements
- You have 1 - 9 years of experience in software development.
- You have designed and scaled up the system.
- You have a strong understanding of Data Structures and Algorithms.
- You are an incessant problem solver and tougher the problem gets, more fun you have.
- You have strong command in any one or more of the following languages: Python and Django
- You understand the business impact of your decisions.
Good To Have
- You have prior experience in fintech companies
Traits We Are Looking For
- Experience in a specific tech stack doesn't matter for us.
- The general engineering mindset and aptitude is what matters more.
- Technically strong and curious.
- Should have a hacker mindset and should love exploring new technologies.
Desired Skills and Experience
Java, Python, Data Structures, Algorithms










