
JD: Elixir Developer- Trading & Fintech
About Us:
Tradelab Technologies Pvt Ltd is not for those seeking comfort—we are for those hungry to make
a mark in the trading and fintech industry. If you are looking for just another backend role, this
isn’t it. We want risk-takers, relentless learners, and those who find joy in pushing their limits
every day. If you thrive in high-stakes environments and have a deep passion for performance
driven backend systems, we want you.
About the Role
We’re looking for an Elixir Developer who is passionate about building scalable, high
performance backend systems. You’ll work closely with our engineering team to design,
develop, and maintain reliable applications that power mission-critical systems.
Key Responsibilities
• Develop and maintain backend services using Elixir and Phoenix framework.
• Build scalable, fault-tolerant, and distributed systems.
• Integrate APIs, databases, and message queues for real-time applications.
• Optimize system performance and ensure low latency and high throughput.
• Collaborate with frontend, DevOps, and product teams to deliver seamless solutions.
• Write clean, maintainable, and testable code with proper documentation.
• Participate in code reviews, architectural discussions, and deployment automation.
Required Skills & Experience
• 2–4 years of hands-on experience in Elixir (or strong functional programming background).
• Experience with Phoenix, Ecto, and RESTful API development.
• Solid understanding of OTP (Open Telecom Platform) concepts like GenServer, Supervisors, etc.
• Proficiency in PostgreSQL, Redis, or similar databases.
• Familiarity with Docker, Kubernetes, or cloud platforms (AWS/GCP/Azure).
• Understanding of CI/CD pipelines, version control (Git), and agile development.
Good to Have
• Experience with microservices architecture or real-time data systems.
• Knowledge of GraphQL, LiveView, or PubSub.
• Exposure to performance profiling, observability, or monitoring tools.
Why Join Us?
• Work with a team that expects and delivers excellence.
• A culture where risk-taking is rewarded, and complacency is not.
• Limitless opportunities for growth—if you can handle the pace.
• A place where learning is currency, and outperformance is the only metric that matters.
• The opportunity to build systems that move markets, execute trades in microseconds, and redefine
fintech.
This isn’t just a job—it’s a proving ground. Ready to take the leap? Apply now.

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Position Overview:
We are seeking a skilled Java Developer to join our dynamic team. The ideal candidate will have a strong foundation in Core Java and extensive experience in developing and deploying applications using Spring Boot, Apache Tomcat, and other related technologies. The candidate should possess expertise in building Restful Web Services, Microservices architecture, and be proficient in implementing multi-threading concepts.
Additionally, experience with Maven, Git, Jenkins, and Agile Scrum methodologies is essential for this role. The candidate should also have a solid understanding of software development lifecycle (SDLC) processes. Familiarity with various databases such as MySQL, PostgreSQL, Oracle, or MongoDB, along with third-party API integration and payment gateway integration, is required.
Key Responsibilities:
• Develop, test, deploy, and maintain Java-based applications.
• Design and implement Restful Web Services and Microservices using Spring Boot.
• Utilize multi-threading concepts to enhance application performance.
• Integrate third-party APIs and payment gateways into applications.
• Collaborate with cross-functional teams to gather requirements and deliver high-quality solutions.
• Participate in Agile Scrum ceremonies and contribute to sprint planning, backlog grooming, and retrospectives.
• Ensure adherence to best practices and coding standards.
• Conduct code reviews and provide constructive feedback to peers.
• Troubleshoot and debug complex issues in production environments.
• Document design decisions, processes, and procedures.
Required Qualifications:
• Bachelor’s degree in computer science, Engineering, or related field.
• Minimum 3 years of experience as a Java Developer with expertise in Core Java.
• Strong knowledge of Spring Boot, Apache Tomcat, and multi-threading concepts.
• Hands-on experience in building Restful Web Services and Microservices architecture.
• Proficiency in using Maven, Git, and Jenkins for build and deployment processes.
• Familiarity with Agile Scrum methodologies and SDLC processes.
• Experience working with databases such as MySQL, PostgreSQL, Oracle, or MongoDB.
• Demonstrated ability to integrate third-party APIs and payment gateways.
• Excellent problem-solving and analytical skills.
• Effective communication and collaboration skills.
• Familiarity with NoSQL databases like MongoDB.
• Knowledge of Azure DevOps for CI/CD pipelines
Job Description
This is a remote position.
Requirements
- You need to be excited about the problem that we are trying to solve
- Should have excellent command over designing systems with a minimum experience of 4 years.
- Should have experience with various database flavors and writing complex queries. We work with Postgres, Redshift, ElasticSearch, TimescaleDB, and Redis.
- Additional knowledge in Golang will be an advantage
- Strong Data Structures and Algorithms knowledge
- Should have created APIs from scratch which is being used in Production
- Should be comfortable with creating systems handling up to 100k requests per minute, and have a mindset that understands scale
- Ability to give clarity and communicate well with the team, including Product, Backend and Dev-Ops (if and when needed)
- Ability to use profiling tools well, getting to root causes of bugs fast
- Ability to pick and work on adjacent technologies if and when required (Eg: If the best performance monitoring solution needs a basic firebase setup, that should not be a blocker for you to go ahead and do so)
- Knowledge of how to set up relevant test cases
- You need to be comfortable working in a remote environment (Good internet connection and availability on phone is required)
- App Development experience
- Experience in Test Driven Development
- Ability to tell Product what creates better User Experience, ability to tell frontend what API responses will help the user get a faster load time
- Inquisitiveness to understand the system as a whole, and not only be stuck to your domain of expertise (Eg: Figure out why excessive APIs calls are being made, brainstorm with Product and Frontend team to reduce the same without harming the UX )
- Experience in working on a Social Media Product
- Good knowledge of Graphs, and their applications
- Data-Driven Approach to monitoring
Benefits
- Work timings - You are the master of your time. However, with great freedom comes great responsibility. If you have committed something to the team, we expect that you will give it your best to make sure that commitment is done and is done on time.
- Leave policy - Take a leave whenever for whatever reason you want. You don't need to explain yourself to us
- Health insurance for you and your family
Who we are:
Software is the connective tissue for much of the information economy. At Sudoviz, we are making it super easy for companies to build and operate secure software. Sudoviz is an Application Security Posture Management platform for the enterprise AppSecurity and software development teams. We're a covid-era, fully remote startup transforming the way enterprise software teams do security.
About you:
• We're looking for someone scrappy, hungry, and eager to take on the challenge as a Backend Engineer on our Platform Engineering Team.
• An ideal candidate has strong programming experience and has experience in architecting and building highly scalable systems.
• You are energetic and enthusiastic about learning and teaching.
• You understand and uphold the values and company culture as well as possess a positive mindset and a can-do attitude.
• You should be willing to contribute across all elements of the technical stack while working on our Platform
Minimum qualifications:
• 2+ years of professional backend software development experience
• Experience designing and implementing highly scalable and performant RESTful micro-services using GraphQL
• Proficiency in Python web and data science libraries (flask, Django, pandas, numpy)
• Fluency in database technologies (e.g. RDBMS, NoSQL, and Graph Databases - Neo4j)
• Experience with Version control like Git
• Experience using AWS, Kubernetes, and Docker containers
• Agile/Scrum/Lean development methodology experience
Must have
• Bachelor's degree in Computer Science
• Good project management skills and documentation skills
• Proficiency in Written and Verbal communication
• Positive solution-oriented mindset
• Ability to achieve consensus with peers and clearly share status updates
• Self-motivated and Self-managing individual
• Clearly and concisely communicate about complex technical, architectural problems
Nice to have
1. Passion for Open source contribution
2. Experience in peak performance organizations/product companies
3. Experience working with a remote team with a global culturally diverse team
- Previous working experience as a MySQL Developer for at least 3 years
- Identify opportunities for improved performance in SQL operations and implementations
- Oversee the operations of the production and staging environments databases
- Give design recommendations for database functions that meet business operating standards while improving the efficiency of business processes
- Train and mentor junior personnel on best practices
Candidate Profile:
- Bachelor’s/Master’s degree in Engineering, Computer Science
- At least 5+ years of relevant experience as a database programmer
- Excellent MySQL/PostgreSQL/MS-SQL development skills
- Experience in writing stored views, procedures, triggers etc.
- Excellent knowledge in RDBMS (important features)
- Strong problem-solving skills, technical troubleshooting, and diagnosing
- Solid knowledge of RDBMS and NoSQL technologies
- Experience in developing back-ends for enterprise systems
- Knowledge of debugging, performance and optimization techniques
- Experience in RDBMS technologies like MySQL, PostgreSQL etc.
- Experience in No SQL technologies like MongoDB, Cassandra etc.
- Knowledge of Caching DB like Redis, Memcached etc.
- Knowledge of Search DB like Solr, Elasticsearch etc.
- Demonstrated ability to deliver in a fast-paced environment.
Key Responsibilities:
- Rewrite existing APIs in NodeJS.
- Remodel the APIs into Micro services-based architecture.
- Implement a caching layer wherever possible.
- Optimize the API for high performance and scalability.
- Write unit tests for API Testing.
- Automate the code testing and deployment process.
Skills Required:
- At least 2 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large scale social or location-based app.
About KAFQA
At Kafqa, we are building the next generation performing arts platform. Our mission is to transform how India learns, performs & watchers performing arts. We are currently in stealth mode with a target public launch date in April. Our launch services consist of technology enabled dance classes in our proprietary studios, production facilities and social media broadcasting & competitions.
Founder & Team
The founder is Shariq Plasticwala. He is a graduate of IIT Bombay & Stanford GSB. He was part of the founding team of Amazon India where he played a key role for over 8 years. Among his roles at Amazon, he was the CEO of Amazon’s first joint venture in India and a Board Member of Amazon’s payments business. The other members of the founding team consist of senior executives from Shiamak Davar & Byju’s.
Background
- At least 1+ years’ experience in back-end development in a fast-paced environment, working in Python & Django Framework
- Deep understanding of technologies used in web-deployed SaaS products, including Rest APIs
- Exposure to AWS, Azure or other cloud providers
Opportunity
We will share our workload as a team and we expect you to work on a broad range of tasks. Here’s are some of the things you might have to do on any given day:
- Developing APIs and endpoints for deployments of our product
- Infrastructure Development such as building databases, creating and maintaining automated jobs
- Build out the back-end to deploy and scale our product
- Build POCs for client deployments
- Document your code, write test cases, etc.
Skills
- Hands-on experience with Python (1+ years)
- Sound understanding of Postgres and NoSQL databases such as MongoDB
- Deep familiarity with UNIX, major cloud platforms (AWS, Azure), DevOps
- Understanding of databases, and related tools, paradigms
As one of our Backend Software Engineers, you will be part of the team responsible for the development of all server-side logic, the definition and maintenance of the database, and ensuring high performance and responsiveness to requests from the front-end developers.
What will you be engaged in?
Collaborate with key internal stakeholders to determine how to scalable design backend systems and APIs to meet their needs
Architect, develop and operate services deployed to millions of users
Collaborate with the DevOps team for the necessary infrastructure needed for services to run on the cloud platform
Write backend services and Restful APIs
Be in charge of data migration, transformation, and scripting
Write reusable, testable, and efficient code
Design and implementation of low-latency, high-availability, scalability, and performant applications
Implement security and data protection
Manage web apps that impact millions of users
What do we expect from you?
3 + years of experience building large-scale backend systems
Knowledge of MVC concepts
Knowledge of web applications systems
A good understanding of data pipelines, data lakes, and data ingestion is Plus
Strong understanding of Database management (MSSQL, SQL)
Strong understanding of NoSQL Database (MongoDB)
Strong understanding of RESTful API
Understanding of JavaScript and Typescripts
Understanding of Node.js frameworks and Nest JS Framework
Passion for building high performance, high throughput, low latency frameworks
Problem-solving mindset
Understanding of GIT Source code
Good at JavaScript and passionate about solving challenges using JavaScript.
Good Understanding of Pub/SUB (Kafka, RabbitMQ etc.)
Fintech Industry experience is plus
- Analyzing website and application requirements.
- Writing back-end code and building efficient PHP modules.
- Developing back-end portals with an optimized database.
- Troubleshooting application and code issues.
- Integrating data storage solutions.
- Responding to integration requests from front-end developers.
- Finalizing back-end features and testing web applications.
- Updating and altering application features to enhance performance.
- PHP Developer Requirements:
- Bachelor’s degree in computer science or a similar field.
- Knowledge of PHP web frameworks including Yii, Laravel, and CodeIgniter.
- Knowledge of front-end technologies including CSS3, JavaScript, and HTML5.
- Understanding of object-oriented PHP programming.
- Previous experience creating scalable applications.
- Proficient with code versioning tools including Git, Mercurial, CVS, and SVN.
- Familiarity with SQL/NoSQL databases.
- Ability to project manage.
- Good problem-solving skills.
Job Description:
Mandatory Skills: Java, J2ee, spring, hibernate, spring mvc.
Preferred: Restful, microservices, spring boot.
Website: https://www.games24x7.com">https://www.games24x7.com
Responsibilities:
- Develop the core platform components.
- Work on integrations with 3rd party systems.
- Co-ordinate with frontend team, designers, and product managers on development requirements
Requirements:
- At least 3 years of experience in developing and managing software systems.
- Proficiency in programming, data structures and algorithms.
- Deep understanding of caching technologies, databases and OOPS.
- Computer science degree from a tier1 college is a MUST.
- Experience in Python is preferred.








