
Are you interested in creating outstanding, reliable and scalable software?
We at Lynkzo are creating a modern omni channel communication platform for companies to meet the changing requirements in the market.
We are looking for someone who:
- has hands-on experience with creating/working on scalable applications in Nodejs using various frameworks like Express, Hapi, Fastify, etc and can structure a fairly large codebase properly.
- has been working as a backend developer for 3+ years.
- has great experience working in both SQL and NoSQL databases.
- can extensively test the entirety of the application.
- can convert real-world business challenges into effective technical solutions.
- has experience working with an agile/scrum team.
- can work independently with limited supervision.
*Experience in AWS will be good to have.

About Lynkzo Softwares Pvt Ltd
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We are looking for an experienced Java Developer with strong proficiency in Kafka and MongoDB to join our dynamic team. The ideal candidate will have a solid background in designing and developing high-performance, scalable, and reliable applications in a microservices architecture. You will be responsible for building real-time data processing systems, integrating various services, and ensuring smooth data flow across systems.
Key Responsibilities:
- Design, develop, and maintain scalable Java applications with a focus on performance and reliability.
- Build and maintain Kafka-based real-time data pipelines for handling high-volume, low-latency data.
- Work with MongoDB to design and optimize database schemas and queries for high throughput and availability.
- Collaborate with cross-functional teams to define, design, and implement new features and improvements.
- Troubleshoot and resolve issues related to system performance, scalability, and reliability.
- Ensure software quality through best practices, including testing, code reviews, and continuous integration.
- Implement and maintain security best practices in both code and data handling.
- Participate in agile development cycles, including sprint planning, daily standups, and retrospectives.
Required Skills & Qualifications:
- 7+ years of experience in Java development, with a strong understanding of core Java concepts (J2EE, multithreading, etc.).
- Hands-on experience with Apache Kafka, including setting up brokers, producers, consumers, and understanding Kafka Streams.
- Proficient in working with MongoDB for designing efficient data models, indexing, and optimizing queries.
- Experience with microservices architecture and RESTful APIs.
- Familiarity with containerization technologies like Docker and orchestration tools like Kubernetes is a plus.
- Strong understanding of distributed systems, message-driven architectures, and event streaming.
- Familiarity with version control systems like Git.
- Excellent problem-solving skills, with the ability to debug and optimize code for high-performance systems.
- Experience with CI/CD pipelines and automated testing.
The tech stack looks like the below (expect this to change as we scale):
- Typescript for APIs (REST and GraphQL)
- Kafka, Spark, and data warehouses for ML pipelines (spark on python/scala)
- Solidity + hardhat for smart contracts (in the future, rust, go and move)
- AWS & Terraform
- Full nodes
You can expect to do some or all of the following:
- Read through protocols’ whitepapers and smart contracts to derive metrics and analyze risks
- Architect the backend for APIs, async jobs, and blockchain integration
- Build clean, concise APIs for customer integration, along with the documentation
- Setup, run and maintain full and archive nodes across different chains
- Integrate with multiple partners like exchanges and custody providers
- Fool-proof security across the stack - encryption, hashing, privacy, VPC, etc.
- Infrastructure as code - build terraform scripts and ensure easy replication of the infra across different regions
- Research the top DeFi protocols to uncover better insights for our customers and evaluate their risk profiles, security, and historical returns
- Manage production deployments, logging, and monitoring
We expect you to be fairly comfortable with working with both web3 and web2 stacks. We do not expect that you have web3 experience on day 1, but you should be willing to wear multiple hats, learn things quickly and move fast.
About you
- Generalist, a solid engineer who can learn things on your own and have an eye for clean, tested, and well-documented code
- We don’t look at the number of years of work experience as a criterion, but rather see what you have done in your life so far (side projects, open-source contributions, blogs, etc.). We don’t care about degrees, the institutions you went to, or the companies you worked for before. We are open to talking as long as you have good judgment, great clarity, align with our values and have a strong track record of thoughtful work
- Understand the fundamentals of building and integrating APIs and secure systems. Bonus if you know a bit about blockchains and protocols
- You can be strong on the backend, front-end, or can dabble everywhere. We want you to play to your strengths and will provide enough opportunities to learn and do things outside of your comfort zone
Pay and benefits We offer a solid, competitive package (including early-stage equity) that is location agnostic. We give you the flexibility to choose the split between cash and equity.
What You'll Do :
You will be a part of our backend team working on keeping our REST API and GraphQL API up and running and making sure that our users get the right data at the right time.
You will have ownership of developing and maintaining our backend services including users, courses, and operations tools that manage our product and logistics.
You will work on architecting and scaling highly-available RESTful services and back-end systems from scratch.
This is a position for an experienced Node programmer with at least 2 years under the belt, but you don't have to be a rock star, a ninja, or a superhero to apply.
What You'll Need :
You will fit well in the backend team if you are passionate about technology and have experience programming in Node. Knowledge of technologies like Cassandra, Elasticsearch, PostgreSQL, REST and JSON will help you get going from day one.
As an experienced Node developer, you should be intimately familiar with the platform, with
JavaScript, and with the stables of full-stack web development : HTTP, JavaScript, CSS, HTML, SQL.
It's a bonus if you're broadly familiar with other languages as well- we write some services in Go and have data pipelines written in Python- but your main work will be JavaScript through and through.
You will be a perfect match with our team if you love collaborating with people from all disciplines to solve complex problems, always want to learn new skills and take ownership of your work.
- Collaborate with cross-functional teams to define, design and ship new features.
- Ability to understand business requirements and translate them into technical requirements.
- Building big, robust. Scalable and maintainable Node JS application.
- Debugging, fixing bugs, Identifying Performance issues, and improving App performance.
- Developing, Deploying, and maintaining multistage, multi-tier applications.
- Provide scalable and secure solutions to large customer problems worldwide.
- Developing high-performance applications by writing testable, reusable, and efficient code.
- Documenting Node.js processes, including database schemas, as well as preparing reports
- Experience in building robust APIs
- Good problem-solving abilities
- Participate in architectural, design, and product sessions.
- Develop the system architecture and infrastructure for our point-of-contact real-time communication system.
- The complete development life cycle of the delivered capability
Company Description
BlueOptima’s vision is to become the global reference for the optimisation of the performance of Software Engineers across all industries. We provide industry-leading objective metrics in software development. We enable large organisations to deliver better software, faster and at lower cost, with technology that pushes the limits of what has been done before.
We are a global company which has consistently doubled in headcount and revenue YoY, with no external investment. We currently are located in 4 countries: London (our HQ), Mexico, India and the US. A total number of 180+ employees (and increasing every day) from 22 different nationalities and with over 25 languages spoken.
We promote an open minded environment and encourage our employees to create their own success story in this high performance environment.
Job Description
Location: Bangalore/Gurgoan, India
Department: Engineering
Job summary:
We are seeking a Senior Software Engineer, with experience in developing scalable application components, which are remotely deployed and are used to extract and push large volumes of data in a data warehouse solution, to join our growing company and be a part of our success story.
We are looking for an individual with great attention to detail, who is genuine, confident, committed and not only passionate about technology, but is keen to own the solution end to end, and most importantly excited to work in a fun and friendly start-up environment.
The ideal candidate will be passionate about technology and getting things to work while at the same time being able to mentor (and lead) other engineers by way of example to achieve excellence in their work.
Your team: You will be working with a diverse team with members located around our different offices, with whom you will be working hand-to-hand. This team is currently based in Gurgaon and we are now looking forward to growing it in Bangalore and mid next year to Mexico with the plan of building two teams in India (Gurgaon and Bangalore) and one in Mexico (Guadalajara).
We are looking for skilled and talented engineers to join our Data Analysis and Processing (DAP) team and directly contribute to development of application components built by the team.
The DAP team works on a business critical component which is responsible for collecting required source code interaction and static metrics data from client location, and processing the large volumes of data end to end. Remote deployment and the uptime requirements only makes this component one of the most complex standalone java applications.
As a Senior Software Engineer in the DAP team, you will be directly contributing to development of the Integrator and Central Server components using Spring Boot, Hibernate and Core Java. And while contributing directly to the development of the software components, you are also expected to lead and mentor a team of next generation platform engineers.
Responsibilities and tasks:
- Analyse, Design, Develop, implement, test and maintain application software components
- Analyse client requirements and convert them into technical specs.
- Own development of features and improvement
- Identify and resolve performance bottlenecks
- Identity and resolve architectural inefficiencies in design, and create a roadmap to resolving them
- Lead and mentor a team of junior developers
- Interact with internal client facing team and provide technical support to them
- Engage with clients to provide support on your component as and when required
Qualifications
What You Need to Succeed at BlueOptima:
- Minimum Bachelor's degree in Computer Science or equivalent
- Minimum 5+ years experience with Java and J2EE/Java EE
- Minimum 2+ years experience with developing standalone Java applications
- Strong understanding of relational database, partitioning and indexing techniques, SQL
- Demonstrable experience in optimising application performance at database or any other layer
- Experience in creating high and low level design based on existing application architecture and documenting such design
- Strong understanding of Java concurrency, concurrency patterns, experience building thread-safe code
- Ability to work autonomously with minimum supervision
- Strong problem solving and analytical skills, and having a can-do attitude
- Familiarity with Agile methodologies like SCRUM, Sprints, etc and leading a Scrum a small Scrum team
- Commitment to accomplishing the task at hand and identify the fastest and most reliable way to solve a problem
- Familiarity with Linux shell and related command line tools
- Strong grasp of Unit & Integration testing
Good to have:
- A team manager, in terms of handling people and delivery which is not a must in case of technical geeks
- Making sure that the sprints and tasks are completed on time with no spill-overs and sticking to the deadline
- Preferred experience on Spring boot,, Docker, Kubernetes
- Some exposure in Linux
Additional Information
Why join our team?
Culture and Growth:
- Global team with a creative, innovative and welcoming mindset.
- Rapid career growth and opportunity to be an outstanding and visible contributor to the company's success
- Freedom to create your own success story in a high performance environment
- Training programs and Personal Development Plans for each employee
Benefits:
- Competitive Salary
- Flexible Work from Home policy - 2 days home p/w
- Free drinks and snacks in the office
- International travel opportunities
- Global annual meet up (most recent meetups have been held in Cancun and India)
- High quality equipment (Ergonomic chairs and 32’ screens)
We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end.
Responsibilities and Duties
Primary Responsibilities:
- Write Elegant, Testable Code
- Design and implementation of low-latency, high-availability, and performant applications
- Implementation of security and data protection
- Build and Deploy Code
- Build Fast, Reliable REST APIs
- Adding New Features
- Enhancing Existing Code and Features
- Comfortable with Agile and Iterative Development along with code reviews

Job Description
Responsibilities:
- Writes high quality code & unit tests, builds, tests as per agreed timelines
- Participates in technical design and provides estimation
- Owns one or more small to medium features
- Becomes a go-to person in at least one area
- Communicates clearly and gets clarification upfront to minimize rework. Knows when to ask for help to unblock.
- Consistently follows and promotes SDLC best practices: Coding standard, testing, code reviews, code comments etc.
- Exhibit strong problem solving skills, helps other developers and demonstrates teamwork
Requirements:
- Understands detailed requirements and demonstrates excellent problem solving skills
- Deep understanding of software engineering practices, Design Patterns, Data Structures, Algorithms
- Excellent programming skills in ROR, Golang, NodeJS, Python
- Strong communication skills
- Strong sense of ownership, drive and ability to deliver results
- 4+ years of experience in product driven organization
- A Bachelors or Masters degree in engineering from a reputed institute
- Experience in Golang, RoR, Unity, ML or Python will be an added advantage


