
Sr. Backend Developer for a Product Based Company ( Node.js )
at Upskillist
Responsibilities:
- Resolve complex technical issues and make design decisions to meet the critical requirements of scalable, highly available, multi-tenant enablement of services in the cloud.
- Independently investigate, present options, review and implement completely new functionality OR re-architect an existing solution to meet growing needs
- You will work closely with other development teams, product management, UX, and QA to define and implement a new product offering while ensuring continued functionality.
- Work with various external (application) teams to integrate with the product and help guide the integration.
- You will implement solutions that include database schema, business logic, and some presentation layer work.
- You will use existing methods and best practices in the software industry to create features and platforms with the highest levels of security, reliability, efficiency, and scalability.
- Experience mentoring senior developers.
Requirements:
- 8+ years of experience in software development experience with a proven track record of making technical decisions
- 8+ years of experience in coding in more than one programming language, e.g. Python, GoLang, node.js, etc
- Intimate working understanding of modern web applications from the database to browser
- Intimate understanding of MongoDB and extensive experience with database-driven applications
- Great problem-solving skills and ability to abstract functional requirements
- Excellent communicator in both technical and non-technical contexts
- Experience designing and improving complex software applications
- Experience coaching and mentoring developers at various levels of experience
- You have a sound understanding of programming fundamentals & their application to highly scalable web-based systems.
- You have successfully led a small agile team.

About Upskillist
About
Providing upskillists globally practical, quality education and learning so they can effect real world change in their lives. Providing employers the ability to upskill their employees so they can recruit and retain more staff and deliver real business ROI. Reach out to [email protected]
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Job Title : Python Django Developer
Experience : 3+ Years
Location : Gurgaon (Work from Office)
Job Summary :
We are looking for an experienced Python Django Developer with strong expertise in building scalable web applications and distributed systems. The ideal candidate must have hands-on experience with Django, Redis, Celery, RabbitMQ, PostgreSQL, and Kafka to design and optimize high-performance applications.
Mandatory Skills :
Python, Django, Redis, Celery, RabbitMQ, PostgreSQL, Kafka
Key Responsibilities :
- Design, develop, and maintain web applications using Python & Django.
- Implement asynchronous tasks and background job processing using Celery with RabbitMQ/Redis.
- Work with PostgreSQL for database design, optimization, and complex queries.
- Integrate and optimize messaging/streaming systems using Kafka.
- Write clean, scalable, and efficient code following best practices.
- Troubleshoot, debug, and optimize application performance.
- Collaborate with cross-functional teams (frontend, DevOps, QA) for end-to-end delivery.
- Stay updated with the latest backend development trends and technologies.
Requirements :
- Minimum 3+ years of experience in backend development using Python & Django.
- Hands-on experience with Redis, Celery, RabbitMQ, Kafka, and PostgreSQL.
- Strong understanding of REST APIs, microservices architecture, and asynchronous task management.
- Knowledge of performance tuning, caching strategies, and scalable system design.
- Familiarity with Git, CI/CD pipelines, and cloud deployment (AWS/GCP/Azure) is a plus.
- Excellent problem-solving and communication skills.
Responsibilities
- Provide technology contributions in
- Working in an agile development environment
- Translating business requirements into low-level application design
- Application code development through a collaborative approach
- Doing Full-scale unit testing
- Applying test-driven and behaviour-driven development (TDD/BDD) QA concepts
- Applying continuous integration and continuous deployment (CI/CD) concepts
Soft Skills
- Should be able to contribute as an individual contributor
- Should be able to execute his/her responsibility independently
- Excellent problem-solving skills and attention to detail.
- Focus on self-planning activities
- Firm with communication skills
Mandatory Skills
- Java, Spring Boot, Python and relational / non-relational databases
- Container orchestration - Kubernetes, Docker
- Development experience in Linux environment
- Modern SDLC tooling (Maven, Git)
- Micro services design-oriented application development and deploying the same using Container orchestration in the cloud environment
- Understanding CI/CD pipeline & related system development environment
Nice-to-have Skills
- Front-end technologies (JavaScript, HTML5, CSS, Angular)
Leapfrog is on a mission to be a role model technology company. Since 2010, we have relentlessly worked on crafting better digital products with our team of superior engineers. We’re a full-stack company specializing in SaaS products and have served over 100 clients with our mastery of emerging technologies.
We’re thinkers and doers, creatives and coders, makers and builders— but most importantly, we are trusted partners with world-class engineers. Hundreds of companies in Boston, Seattle, Silicon Valley, and San Francisco choose us to gain speed, agility, quality, and stability, giving them an edge over their competitors.
We are seeking a highly skilled Salesforce Developer to enhance our customer engagement capabilities by upgrading our Legacy Chat to Enhanced Chat. The ideal candidate will have hands-on experience with Salesforce Service Cloud and Sales Cloud, coupled with a strong understanding of Omni-Channel and Live Agent functionalities.
This role requires proven expertise in Apex, Lightning Web Components (LWC), JavaScript, HTML, SOQL, and SOSL, with the ability to design and implement scalable, high-quality Salesforce solutions that drive customer success.
Essential Duties & Responsibilities
- Focus on delivering high-quality, functional solutions on the Salesforce.com platform using Apex, Lightning Web Components (LWC), SOAP, and REST APIs.
- Lead the migration from Legacy Chat to Enhanced Chat, ensuring a seamless transition for users and customers within Service Cloud and Sales Cloud.
- Design and implement Omni-Channel and Omni-Flow configurations to optimize customer service workflows and routing.
- Perform deployment, testing, and documentation of Salesforce features, enhancements, and integrations.
- Collaborate closely with product owners, engineering teams, and business stakeholders to define, clarify, and implement both functional and non-functional requirements for new and existing backlog items.
- Train and support end-users on implemented Salesforce features and planned solutions to ensure adoption and efficiency.
- Investigate, scope, and plan the implementation of assigned epics and backlog items, leveraging deep Salesforce platform expertise to model, document, and justify scalable, maintainable solutions.
Desired Outcomes
- Lead the migration from Legacy Chat to Enhanced Chat within Service Cloud and Sales Cloud, ensuring a seamless, scalable, and user-friendly transition for both customers and internal teams.
- Design, build, and deploy Enhanced Chat configurations, including Omni-Channel and Omni-Flow setups, to optimize response times, routing efficiency, and overall customer engagement.
- Execute deployment, testing, and documentation of Salesforce features, enhancements, and integrations, maintaining high standards of quality, performance, and compliance with best practices.
About you
- Minimum 5 years of hands-on experience with coding on the Salesforce Platform using Apex, Visualforce, Lightning / Aura Components, Javascript, HTML, REST/SOAP API etc.
- Minimum 2 years of hands-on experience creating Flows
- Minimum 2 years of experience with Omnichannel and Live Agent Chat
- Minimum 2 years of experience with Sales, Service Cloud
Required Education / Certificates / Experience
- Bachelor of Science or equivalent preferably in Computer Science / Computer Engineering / Electrical Engineering
- Salesforce Platform Developer I certification
• 5 + years of hands-on experience in .NET, Angular and related Web technologies.
• 2 - 3+ years of experience designing and supporting Azure environments, including IaaS and PaaS
• Past experience in cloud computing and technology systems, as well as experience in designing and transferring applications to the cloud.
• Proven experience in Continuous Integration (CI) and Continuous Delivery (CD) as well as DevOps principles to achieve SDLC goals of Global Banking Technology
• Hands on experience using the Azure/AWS administration portal.
• Knowledge of at least one other cloud hosting solution (e.g., Azure, Google, AWS, Helion Cloud).
• Good hands-on experience in SOA, XML, WSDL, XSD, WSDL XML schema and namespaces (J2EE and .NET), MS .NET Framework, C#, HTML, Javascript, Micro Services/ APIs, Messaging, Threading, IBM DB.
• Have experience on development of container applications.
• Good knowledge of IBM DB. Should be comfortable writing stored procedures and user defined functions.
• Strong business knowledge of wealth management industry.
• Component / business object modeling, services modeling.
• Experience in building high concurrency, low latency 247 availability applications.
• Strong programming skills with emphasis on writing efficient algorithms to handle large data sets and processing.
• Understanding of HTTP, IIS and how the browser works.
• Ability to coordinate with various teams to deliver projects successfully.
• Knowledge of UML design.
• Knowledge of source control (preferably Git) and continuous Integration tools.
• Have working Knowledge of DevOps and best practices. Understanding of Major DevOps Tools and implementation for Source Control, Continuous Integration, Configuration Management, Deployment Automation, containers & Orchestration
• Experience in working in Agile framework.
• Good written and verbal communication skills.
Skills Desired:
• Financial markets, payment solutions or Wealth Management previous experience
Educational Qualification:
• Bachelor’s degree in Engineering preferred from an accredited college/university
Job Overview
We are looking for a talented Senior Backend Developer to join our team in developing backend servicing. As a key member of our development team, you will be responsible for cross-functional teams to design, develop, and maintain backend services and APIs using Node.js. The ideal candidate is passionate about distributed systems, has experience with backend services and is excited about optimising applications for performance, scalability, and reliability.
Responsibilities:
- Design, develop, and maintain backend services and APIs using Node.js.
- Collaborate with cross-functional teams to define requirements, architect solutions, and implement features.
- Write clean, modular, and maintainable code following best practices and coding standards.
- Optimise applications for performance, scalability, and reliability.
- Implement security measures to ensure data privacy and integrity in backend systems.
- Troubleshoot and debug issues to ensure smooth operation of production systems.
- Perform code reviews to maintain code quality, consistency, and adherence to coding standards.
- Stay updated with the latest trends and technologies in backend development, Node.js, and related ecosystems
Requirements:
- Bachelor's degree in Computer Science, Engineering, or related field.
- Proven experience in backend development, with at least 4 years of experience using Node.js.
- Strong understanding of data structures, algorithms, and software design principles.
- Experience with web frameworks such as Express.js.
- Proficiency in building RESTful APIs and microservices architecture.
- Familiarity with relational and NoSQL databases (e.g., MongoDB, PostgreSQL).
- Solid understanding of asynchronous programming and event-driven architectures.
- Experience with version control systems (e.g., Git) and collaborative development workflows.
- Excellent problem-solving, analytical, and troubleshooting skills.
- Ability to work independently and in a team environment, with excellent communication skills.
● Proven work experience as a Back-end developer.
● In-depth understanding of the entire web development process (design, development and deployment).
● Proficient in Java, with a good knowledge of its ecosystems
● Basic understanding of JVM, its limitations, weaknesses, and workarounds
● Ability to decide when to use relational vs NoSQL databases and must be experienced with at least one of
the relational databases (MySQL) as well as experience with ElasticSearch will be good to have
● Familiarity with concepts of MVC, JDBC, and RESTful
● Experience with Spring, Spring Boot, Spring MVC
● Experience in CI/CD and Cloud technologies
● Expertise in developing enterprise-level web applications and RESTful APIs using MicroServices, with
demonstrable production-scale experience
● Familiarity with front-end languages (e.g. HTML, JavaScript and CSS) - Not mandatory
● Participation in coding competitions such as hackathon, hackerrank will be added advantage.
Company Overview:
At Codvo, software and people transformations go hand-in-hand. We are a global empathy-led technology services company. Product innovation and mature software engineering are part of our core DNA. Respect, Fairness, Growth, Agility, and Inclusiveness are the core values that we aspire to live by each day.
We continue to expand our digital strategy, design, architecture, and product management capabilities to offer expertise, outside-the-box thinking, and measurable results.
Roles & Responsibilities :
Familiar with the software development life cycle (SDLC) from analysis to deployment & coding standards.
Believes in systematic approach to developing the system through clear documentation (flowcharts, layouts, & etc) of functionality, address every use case through creative solutions.
Ability to integrate the developed functionality and/or component into a fully functional system.
Ensure unit and integration level verification plan are in place
Actively participate in troubleshooting, debugging and updating current live system.
Work closely with analysts, designers and other peer developers.
Preparing technical training documents for onboarding new engineers.
Requirements :
Must have good understanding of Object Oriented Programming
5 years or more of professional software development experience with 3 or more years of experience developing .NET/C# web applications using Microsoft Development Products
Define, design and build varied components of web-based and/or mobile applications
Experience using WPF (Windows Presentation Foundation) to build Windows desktop applications is a plus
Experience using JavaScript frameworks/libraries (Angular, React, JQuery, D3) is a plus
Experience with SQL Server (relational databases) and no-SQL Databases (Apache Cassandra or similar)
Strong analytical skills – be a problem solver and be able to develop complex algorithms
Strong familiarity of software architecture, databases and design patterns
Exposure or understanding of deploying applications on cloud platforms like Azure/AWS
Experience : 5+Years
Job Location : Remote
Work Timings : 3pm- 12 am
Why this role?
Help build the future of sales: At Nektar, you will help redefine the way people sell. Across countries and industries. There are few startups with this kind of market potential.
A team with decades of domain expertise: Between them, the founders have nearly two decades of experience founding and growing startups and building and selling SaaS products globally.
Tackle our most impactful problems: Our team is still small, and people wear many hats. You’ll jump between product, design, engineering, devops and growth. You will not be bored.
Join us at a magical time: Founded and headquartered in Singapore, Nektar raised a substantial seed round from great SaaS VCs in less than 4 weeks of starting the company, giving us a massive jump start and room to focus on our product and users.
What do we do?
Nektar’s mission is to help people work smarter. Our first product is an assistant for sales teams that will help close more deals faster.
Sales organizations have spent hundreds of billions of dollars on systems of record to collect vast amounts of data. This data might produce pretty graphs on managers’ reports but it hardly ever helps the salesperson in the field move their deals forward. This is why, in 2019, less than 30% of salespeople used their organization’s CRM as intended, and 57% of the sales teams globally missed their sales quota.
This is where we’re different — we are laser-focused on the specific actions that help salespeople close deals. We’re building a real system of growth, a first of it’s kind to help salespeople become better salespeople by helping our users build productive habits, adopting best practices and eliminating friction from the sales process.
What we’re looking for?
- We’re looking for engineers who can hit the ground running, with at least a year’s experience building production servers using Node.js. Experience with the frontend is positive but not required.
- As an all-remote team, we require great communication skills, particularly in writing. You must be a self-motivated manager of one with the ability to work independently, take ownership and proactively seek help when required. Prior experience working remotely will be positive but is not required.
- As a startup, we prefer generalists over specialists and product-focused engineers who can empathize with users. Experience working at a fast-growing startup would be positive but is not required.
- Experience in sales tech will be a strong positive but is not a must.
How do we work?
We’re an all-remote engineering team from the beginning (yes, since before the pandemic!), and we’ve built a fantastic remote-friendly culture. We support every team member to set up a great personal workspace that fits them — whether that’s a home office, a co-working space or just hanging out at a coffee shop. We are location agnostic and you can literally choose a location that works for you . Our distributed team currently sits in Singapore, India, Vietnam, Australia and Indonesia.
We do weekly team activities, like online gaming and coffee chat to ensure that physical distance doesn’t keep us from being a close-knit team.
Nektar is a small team, and everyone’s involved in shaping the product we build. We’re still iterating and figuring out the product-market fit, so we’re not averse to throwing away code. We’d rather build a few powerful features that solve important needs than lots of features that are not as valuable.
In line with our mission — helping people work smarter — we’re always thinking about how we can work smarter ourselves. We try to avoid large and long meetings and prefer ad-hoc collaboration with one or two other people instead. We invest in continuous integration and deployment, automated testing and other tooling to eliminate friction from our engineering processes. We aim for clear written documentation and communication.
You will be building efficient, scalable & high performance microservices and applications which will power the network of thousands of retailers across the country and at the same time improve the efficiency and visibility of information flow in our supply chain systems.
Your core responsibilities:
- Create elegant, efficient and maintainable software to support and extend our current products.
- Solve complex architectural challenges when implementing new features.
- Integrate with databases, file systems, cloud services when delivering scalable solutions.
- Troubleshoot and fix reported customer issues, delivering software patches as needed.
- Assisting in making design decisions based on performance, scalability, security, and future expansion.
- Communicating and collaborating with management, product, QA teams.
What will help you thrive in this role?
- Degree in Computer Science, similar technical field of study or equivalent practical experience.
- 5+ years of experience as a Backend Engineer.
- Proficiency in web development using any of the languages: PHP, Python, Java, NodeJS or Golang.
- Should possess a solid grasp of object-oriented programming, system architecture & design, databases, development, and testing methodologies.
- Good in Design (HLD and LLD).
- Good in Database schema design.
- Good to have experience with AWS or Google Cloud or Azure and serverless architecture.
- Excellent verbal communication skills.
- Track record of delivering successful products as an engineer.
- Experience with large applications of some scale will be a plus.
- Ability to deep dive, understand & improve the legacy code.
- Domain knowledge of supply chain & retail industry is a plus.
Whom you will be sharing your work day with?
We are a language agnostic engineering team of independent thinkers who understand the priorities of a rapidly growing startup and excel at choosing high impact projects. Our core beliefs are:- We are in the forefront of disrupting traditional retail & supply chain industry by building distributed systems
- We are hardcore open source lovers and believe in the strength of open source community.
- We believe technology can change the way information is consumed.
- We use a data driven approach to build new products and features.
- Build new tech solutions to improve business processes and enable our various departments to help service our teams better.
- We embrace and enable DevOps culture within the organisation.
And yes! We do have new furry friends coming to our office everyday.
Work Perks
- Hybrid work environment with flexibility to work from anywhere.
- A great salary, commensurate with experience.
- Unlimited vacation policy which means Paid Vacations.
- A relaxed & flexible working atmosphere.
- Weekly parties (Unofficial).
- Paid outings to remote work locations and industry events/conferences.
- Paid Health Insurance for you and your loved ones.












