Full Stack Developer

Job Title : Full Stack TypeScript Developer (Web3)

Location : Remote

Experience Level : 3+ Years

Role Overview :

Join our innovative, funded Web3 startup as a Full Stack TypeScript Developer and play a key role in building a wallet-to-wallet audio calling platform. You’ll collaborate with cross-functional teams to deliver a seamless user experience by integrating real-time communication, blockchain payments, and advanced analytics into our platform.

Key Responsibilities:

Development & Blockchain Integration :

• Design and develop a responsive React + TypeScript frontend using Vite.
• Build a scalable TypeScript, Express.js backend to manage wallets and on-chain transactions.
• Integrate wallet connection frameworks like RainbowKit and Wagmi.
• Implement blockchain payment systems using Superfluid Finance and on-chain revenue sharing with 0xSplits.

Real-Time Communication :

• Develop and optimize real-time audio streaming for calls and Spaces using Jitsi or 100ms.
• Ensure low-latency performance, scalability, and smooth user interactions for high-concurrency scenarios.

Data Management & Analytics :

• Manage relational data with Drizzle ORM and Neon Postgres.
• Develop analytics features using The Graph or custom indexers to query blockchain data effectively.

Collaboration & Documentation :

• Collaborate closely with product, design, and blockchain teams to align on technical solutions and goals.
• Document APIs, workflows, and architectural decisions to ensure clarity and smooth handoffs.

Required Skills:

• Strong proficiency in React, TypeScript, and Express.js.
• Hands-on experience with blockchain tools such as ethers.js, Superfluid, 0xSplits, and The Graph.
• Familiarity with real-time audio communication systems like Jitsi or 100ms.
• Expertise in relational databases like Postgres and scalable storage solutions.
• Excellent debugging, optimization, and problem-solving skills.

Preferred Qualifications:

• Prior experience in Web3 or blockchain-based applications.
• Knowledge of decentralized systems and protocols.
• Understanding of agile development processes and CI/CD pipelines.
• Strong attention to detail with the ability to write clean, maintainable code.

What We Offer:

• A chance to work at the forefront of Web3 innovation.
• Fully remote, flexible work environment.
• Competitive salary and equity options.
• Opportunity to make a significant impact in a growing startup.

Lead Java Platform Engineer

Build the high-performance platform services behind our core financial applications.

EXPERIENCE

5+ years (core Java)

CORE TECH

Java · REST APIs ·

SQL/NoSQL

DOMAIN

Financial Services

About the role

We’re seeking a highly experienced and passionate Senior Java Platform Engineer to join our

team. You’ll play a crucial role in designing, developing, and maintaining the robust, scalable

platform services that underpin our core financial applications.

This role demands a deep understanding of core Java principles, a proven track record of

building high-performance APIs, and extensive experience in the financial services industry.

What you’ll do

Design & development

– Design, develop, and maintain high-performance, scalable, and reliable platform services in

Java.

– Build and consume RESTful APIs and other web services.

– Write clean, well-documented, testable code, and contribute to code reviews and quality.

Platform engineering

– Contribute to the architecture and design of our platform services.

– Optimize platform performance and scalability and troubleshoot complex technical issues.

– Ensure the security and reliability of the platform.

Data management

– Work across SQL and NoSQL databases.

– Design efficient data access patterns and apply sound data modelling principles.

Financial services expertise

– Apply deep knowledge of financial industry practices, regulations, data, and systems.

– Work with sensitive financial data structures, with the care that requires.

Automation & workflow– Use Python for scripting and automation tasks.

– Apply (or build) exposure to Apache Airflow or similar tools for data pipelines and

scheduling.

Collaboration & communication

– Collaborate with cross-functional teams — product managers, QA engineers, and

developers.

– Communicate clearly with both technical and non-technical stakeholders.

– Mentor junior engineers.

What you’ll bring

– Bachelor’s or Master’s in Computer Science or a related field.

– 8+ years of experience in core Java development.

– Extensive experience building and maintaining platform services.

– Strong grasp of object-oriented programming principles and design patterns.

– Proven experience designing and developing RESTful APIs.

– Deep knowledge of concurrency, multithreading, and performance optimization.

– Hands-on experience with SQL and NoSQL databases.

– Significant experience within the financial services industry.

– Exposure to Python for scripting and automation.

– Exposure to Apache Airflow or similar workflow management tools.

– Excellent problem-solving, analytical, communication, and collaboration skills.

– Experience with Agile development methodologies.

Nice to have

– Cloud platforms (AWS, Azure, or GCP).

– Containerization and orchestration (Docker, Kubernetes).

– Message queues (Kafka, RabbitMQ).

– Knowledge of financial regulations and compliance requirements.

About Wissen Technology

Wissen Technology is a specialized consulting firm that helps organizations in Banking &

Finance, Telecom, and Healthcare build world-class products. Since 2015, we’ve grown to

1,000+ engineers across the US, UK, India, Australia, Mexico, and Canada and we are a

certified Great Place to Work ®.

About the company

Metron Security provides automation and integration services to leading Cyber Security companies. Our engineering team works on leading security platforms including - Splunk, IBM’s QRadar, ServiceNow, Crowdstrike, Cybereason, and other SIEM and SOAR platforms. 

Software Engineer is a challenging role within Cyber Security Engineering integration development. The role involves developing a product/service that achieves high-performance data exchange between two or more Cyber Security platforms. A Software Engineer is at the core of the evolution process and is responsible for the End-to-End delivery of the project, right from getting the requirements from customers to deploying the project for them on-prem or on the cloud, depending on the nature of the project. We follow the best practices of engineering and keep evolving. We are agile. 

Each integration needs reskilling yourself with the required technology for that project. If you are passionate about programming and believe in the best practices of software engineering, the following are the skills we are looking for: 

● Developer-centric culture - No bureaucracy or red tape. 

● Chance to work on 200+ security platforms. 

● Opportunity to engage with end-users (customers) and just a cog in the wheel.

About the role

We are looking for passionate developers with 4-7 years of experience in software development to join the Metron Security team as Software Engineers. 

Mandatory Skills 

• 4+ years of experience in software engineering, with a proven track record of leading engineering teams and mentoring junior developers. 
• Expertise in at least one or two Object-Oriented Programming language (Python, typescript, Java,Node.js,Angular, react.js C#, C++) . 
• Good knowledge of Data Structure and its correct usage. 
• Oversee code reviews, ensuring adherence to best practices and maintaining high code quality standards. 
• Imbibe and maintain a strong customer delight attitude while designing and building products/services.

Other Requirements 

• Open to learn any new software development skill if needed for the project.
• Alignment and utilisation of the core enterprise technology stacks and integration capabilities throughout the transition states. 
• Participate in planning, definition, and high-level design of the solution and exploration of solution alternatives. 
• Define, explore, and support the implementation of enablers to evolve solution intent, working directly with Agile teams to implement them. 
• Good knowledge of the implications of Cyber Security on production.
• Experience in architecting & estimating deep technical custom solutions & integrations. 
• Manage the customer to ensure we have a continuous flow of work from them so that the team has enough work for at least a month. 
• Mentor and coach team members, providing technical guidance and fostering professional development. 

Added advantage: 

• Experience in the Cyber Security domain.
• Experience in developing software using web technologies. 
• Experience in handling a project from start to end. 
• Hands-on experience in an Agile Development project and in writing and estimating User Stories. 
• Contribution to open source - Please share your link in the application/resume if any.

•  Good communication skills in English (Written and Oral)
•  Strong knowledge of RDBMS concepts
•  Strong analytical and problem-solving skills
•  Experience in performance tuning
•  Experience in interaction with the customer
• Mandatory technical skills Java 8+, Angular 2+, HTML, CSS, TypeScript
• Preferred Tools (SVN, GIT, Maven, Jenkins Jira Confluence) 
•  Ability to explore the application by himself/herself from the training provided

• New feature development or enhancement or change request activities (Requirement analysis, Requirement documentation, Design, Coding, Review, Testing and Release process)
•  Defect Fixing (Defect analysis, route cause identification, Code change, testing, obtaining user confirmation and release process)
• Support tasks (Ticket analysis, data uploading, performance tuning, job monitoring, any analysis task, ReportGeneration and etc.,)
• Level 2 and Level 3 support (Support process adherence)
• Functional and technical or solution documentation preparation
• Execution will either be Waterfall or Agile
• The process needs to be followed as defined by RBEI or RBEI’s Customer
• Preparation & participation in the project status and review meeting

• Join the product research team to develop the leading Geodata and GeoAI platform in Hong Kong
• Be part of the product team to develop web front-end interface with a focus of data and AI application
• Develop automated software in Arical data and AI pipeline
• On job training for rapid product development cycle
• Will have to deliver reliable and maintainable code
• Use analytical skills effectively for hands on problem solving
• Translate UI/UX design wireframes to actual code
• Work with UI/UX designer

• Degree or above in Computer Science, Information Systems, or related fields
• Coursework in programming, data science, machine learning, AI and databases
• Strong organizational and project management skills
• Proficiency with client-side scripting and database technology

• Knowledge of one or more system programming languages (Python, C++, Java, etc)
• Knowledge of MongoDB and other NoSQL data stores such as Redis
• Proficiency with HTML, CSS, JavaScript, cross-browser optimization
• Proficiency with one or more front-end web development framework (Bootstrap, Angular, React)
• Knowledge of one or more web-scripting languages (PHP, Rudy, Node.js etc)
• Knowledge of web-scraping library (Beautiful Soup, web driver etc)
• Knowledge of API packaging and Docker deployment
• Knowledge of app development
• Knowledge of UI/UX design

• Work from home

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. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well.

The Candidate should have knowledge and experience with specified technologies:

• Great at building server-side code in NodeJs & ExpressJs
• Experience with NoSQL databases such as MongoDB
• Experience in building and consuming REST API
• Authentication and authorisation using JWT tokens
• Proficient understanding of code versioning tools, such as Git
• DevOps knowledge especially in AWS EC2 and S3
• Knowledge of headless Chrome, Puppeteer will be huge plus
• Experience in HTML, CSS
• Understanding of React will be a bonus