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Blockbrew Engineering is an action packed Blockchain engineering company having global clients and multiple global offices.
Blockbrew Engineering boasts of well reputed industry tieups in India as well as globe.
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Senior Full Stack Developer
Location: India, Remote
Employment Type: Contract
Department: Engineering
About Us
OpenAssets is building open standards for the next generation of capital markets, providing the trusted foundation for real-world asset tokenization and digital currencies.
We design regulatory-conscious solutions for alternative asset digitization and loyalty programs, enabling organizations to create secure, scalable digital assets and personalized engagement experiences.
Join OpenAssets and help shape the future of digital finance!
Overview
OpenAssets is seeking a Senior Full-Stack Developer to own end-to-end delivery across our multi-tenant platform. This is a hands-on engineering role spanning the full MERN stack: MongoDB schemas, Node.js services, and React.js operator and investor interfaces with working knowledge of EVM-based blockchain systems to support on-chain integrations.
The ideal candidate brings deep experience designing and shipping production systems end-to-end, optimizing backend and frontend performance, integrating with EVM blockchains, and mentoring engineers in a distributed, fast-moving environment.
What You'll Do
- Design, develop, and maintain full-stack web applications across the MERN stack: MongoDB, Express.js, React.js, and Node.js using TypeScript on both client and server
- Build and maintain RESTful APIs with consistent error handling, pagination, versioning, and authentication
- Model, index, and optimize MongoDB schemas using compound indexes, aggregation pipelines, and transactions on replica sets
- Develop responsive React.js user interfaces using modern patterns including hooks, state management, and component-level testing
- Implement authentication and authorization using JWT and role-based access control with secure middleware patterns and OWASP-aligned input validation
- Integrate with EVM-based blockchain systems (Ethereum, Polygon, Arbitrum, Base), including wallet interactions, transaction lifecycle handling, and on-chain/off-chain reconciliation
- Deploy and operate services on AWS using Docker and CI/CD pipelines, with structured logging, monitoring, and on-call participation
- Write automated tests (unit, integration, end-to-end) using Jest, Mocha, Supertest, or similar frameworks
- Conduct code reviews, mentor mid-level engineers, and contribute to engineering documentation and best practices
- Collaborate with product, design, and engineering leadership across time zones to scope features, define API contracts, and deliver end-to-end
Qualifications & Experience
- 8+ years of full-stack development experience
- Strong expertise in MongoDB, Express.js, React.js, Node.js, and TypeScript across both client and server
- Experience designing and operating RESTful APIs and frontend integrations at scale
- Hands-on experience with MongoDB data modeling, compound indexes, aggregation pipelines, and replica-set transactions
- Proficiency in:
- JWT/OAuth-based authentication and role-based access control
- Secure middleware patterns and OWASP-aligned input validation
- Pagination, query optimization, and performance tuning
- Experience integrating with EVM-based blockchain systems (Ethereum, Polygon, Arbitrum, Base), including wallet interactions, transaction lifecycle handling, and on-chain/off-chain reconciliation
- Hands-on experience with AWS infrastructure (EC2, ECS, Lambda, S3, CloudWatch, IAM)
- Familiarity with Docker, GitHub Actions, and modern CI/CD workflows
- Experience writing automated tests across unit, integration, and end-to-end layers using Jest, Mocha, Supertest, Playwright, or Cypress
- Solid understanding of backend and frontend security practices
- Strong ownership mindset and accountability
- Ability to drive technical execution independently and mentor mid-level engineers
- English fluency
Nice to Have
- Fintech, capital markets, or payments experience
- MongoDB Atlas certification or replica-set tuning expertise
- EVM developer tooling (ethers.js, Hardhat, Foundry)
- Tokenized securities or on-chain asset issuance
- Multi-tenant SaaS architecture
- Event-driven systems (Kafka, SQS, BullMQ)
- GraphQL
- Performance engineering (keyset pagination, caching, Redis)
- Distributed tracing (OpenTelemetry)
- Infrastructure as code (Terraform, Pulumi, CDK)
- Open-source contributions or technical writing
- CS-related Bachelor's degree
- AWS certifications
- Prior remote-first startup experience.
We are committed to providing equal opportunity for qualified applicants to contract positions, regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. This is a contract opportunity, not a direct employment role.
Description
We are seeking a skilled and detail-oriented Software Developer to automate our internal workflows, develop tools for internal use that are used by our development team.
We follow the following practices: unit testing, continuous integration CI, continuous deployment CD, and DevOps.
We have codebases in go, java, python, vue js, bash and support the development team that develops C code.
You need to like challenges, explore new fields and find solutions for problems.
You will be responsible for coordinating, automating, and validating internal workflows and ensuring operational stability, and system reliability.
Requirements
- Bachelor’s degree in Computer Science, Engineering, or related field.
- 2+ years in professional software development
- Solid understanding of software development patterns like SOLID, GoF or similar.
- Experience automating deployments for different kinds of applications.
- Strong understanding of Git version control, merge/rebase strategies, tagging.
- Familiarity with containerization (Docker) and deployment orchestration (e.g., docker compose).
- Solid scripting experience (bash, or similar).
- Understanding of observability, monitoring, and probing tooling (e.g., Prometheus, Grafana, blackbox exporter).
Preferred Skills
- Experience in SRE
- Proficiency in CI/CD tooling (e.g., GitHub Actions, Jenkins, GitLab).
- Familiarity with build tools like Make, CMake, or similar.
- Exposure to artifact management systems (e.g., aptly, Artifactory, Nexus).
- Experience deploying to Linux production systems with service uptime guarantees.
Responsibilities
- Develop new services that are needed by SRE, Field or Development Team by adopting unit testing, agile, clean code practices.
- Drive the CI/CD pipeline and maintain the workflows, using tools such as GitLab, Jenkins
- Deploy the services and implement and refine the automation for different environments.
- Operate: The services that the SRE Team developed.
- Automate release pipelines: Build and maintain CI/CD workflows using tools such as Jenkins and GitLab.
- Version control: Manage and enforce Git best practices, branching strategies (e.g., Git Flow), tagging, and release versioning.
- Collaboration: Work closely with developers, QA, and product teams to align on release timelines and feature readines
- Success Metrics
- Achieve >99% service up time with minimal rollbacks.
- Delivery in time, hold timelines.
Benefits
Enjoy a great environment, great people, and a great package
- Stock Appreciation Rights - Generous pre series-B stock options
- Generous Gratuity Plan - Long service compensation far exceeding Indian statutory requirements
- Health Insurance - Premium health insurance for employee, spouse and children
- Working Hours - Flexible working hours with sole focus on enabling a great work environment
- Work Environment - Work with top industry experts in an environment that fosters co-operation, learning and developing skills
- Make a Difference - We're here because we want to make an impact on the world - we hope you do too!
Why Join RtBrick
Enjoy the excitement of a start-up without the risk!
We're revolutionizing the Internet's backbone by using cutting-edge software development techniques. The internet and, more specifically, broadband networks are among the most world's most critical technologies, that billions of people rely on every day. Rtbrick is revolutionizing the way these networks are constructed, moving away from traditional monolithic routing systems to a more agile, disaggregated infrastructure and distributed edge network functions. This shift mirrors transformations seen in computing and cloud technologies, marking the most profound change in networking since the inception of IP technology.
We're pioneering a cloud-native approach, harnessing the power of container-based software, microservices, a devops philosophy, and warehouse scale tools to drive innovation.
And although RtBrick is a young innovative company, RtBrick stands on solid financial ground: we are already cash-flow positive, backed by major telco investors like Swisscom Ventures and T-Capital, and our solutions are actively deployed by Tier-1 telcos including Deutsche Telekom (Europe's largest carrier), Regional ISPs and City ISPs—with expanding operations across Europe, North America and Asia.
Joining RtBrick offers you the unique thrill of a startup environment, coupled with the security that comes from working in a business with substantial market presence and significant revenue streams.
We'd love you to come and join us so why don't you embrace the opportunity to be part of a team that's not just participating in the market but actively shaping the future of telecommunications worldwide
Role:Java Developer
Job Description: We are looking for a talented and motivated Software Engineer with expertise in both Windows and Linux operating systems and solid experience in Java technologies. The ideal candidate should be proficient in data structures and algorithms, as well as frameworks like Spring MVC, Spring Boot, and Hibernate. Hands-on experience working with MySQL databases is also essential for this role.
Responsibilities:
● Design, develop, test, and maintain software applications using Java technologies.
● Implement robust solutions using Spring MVC, Spring Boot, and Hibernate frameworks.
● Develop and optimize database operations with MySQL.
● Analyze and solve complex problems by applying knowledge of data structures and algorithms.
● Work with both Windows and Linux environments to develop and deploy solutions.
● Collaborate with cross-functional teams to deliver high-quality products on time.
● Ensure application security, performance, and scalability.
● Maintain thorough documentation of technical solutions and processes.
● Debug, troubleshoot, and upgrade legacy systems when required.
Requirements:
● Operating Systems: Expertise in Windows and Linux environments.
● Programming Languages & Technologies: Strong knowledge of Java (Core Java, Java 8+).
● Frameworks: Proficiency in Spring MVC, Spring Boot, and Hibernate. ● Algorithms and Data Structures: Good understanding and practical application of DSA concepts.
● Databases: Experience with MySQL – writing queries, stored procedures, and performance tuning.
● Version Control Systems: Experience with tools like Git.
● Deployment: Knowledge of CI/CD pipelines and tools such as Jenkins, Docker (optional
A back-end developer is a web developer or engineer who works with at the back end of a website or application. In this sense, will work on Java code for application development comprehending what users want from the finished product, developing design documentation for the application, debugging and repairing code, and testing the softwares.
SKILLS:
- Core Java: Collections, Generics, data structures, Oops concepts, Exception handling, Design patterns, Data Structure.
- Mysql,C++
- Knowledge of Angular
- Candidate should have working knowledge on web services
- Hands on experience on Kubernetes, Docker, Python, AWS, Springboot.
- Proven hands -on experience in software and app development using Java Platforms
- Telecom industry experience is a must
COMPETENCIES:
- Plan and Organize: Plan and organize activities in a clear and accurate manner
- Achievement Orientation: Meets predetermined standards
- Meticulous attention to detail: Recognizes obvious information
- Teamwork: Collaborates with others to get the work done and achieve team goals
MINIMUM QUALIFICATION:
- B.E/ B.Tech/ MCA
REQUIRES EXPERIENCE:
- 3 -13 years of relevant experience in Java development
• 3+ years of software development experience on web applications
• Experience in working in an onsite and offshore development model
• Must have hands-on design and development experience in Cloud (GCP/AWS/Azure), Kubernetes, Microservices,
Java, J2EE, Spring/Boot, Hibernate, JUnit and Integration with front end via rest interfaces.
• Must have Hands-on experience in Multi-threading, Non-blocking IO, Kafka, JMS
• Strong integration background required. Experience with Microservices, REST, JSON and APIs is required
• Experience with as many of the following is highly desirable: Tomcat, Node.js, XML, XSLT, XPath, Web Services,
MongoDB, MYSQL, and query performance tuning
• Experience with code management and continuous integration techniques and tools such as Maven, Gradle, Github,
JMeter, Jenkins, NPM etc. is highly desirable
• Experience building complex software systems that have been successfully delivered to customers
• Strong Computer Science fundamentals and working knowledge in data structures, algorithms, problem-solving and
complexity analysis
• Knowledge of professional software engineering practices and best practices for the full software development life
cycle (SDLC), including coding standards, code reviews, source control management, build processes, testing, and
operations
• Proven ability to troubleshoot issues in production including root cause analysis
• Self-directed and capable of working effectively in a highly innovative and fast-paced environment
• Experience with Agile software development in a UNIX/Linux environment
• Experience with system architecture/design
We are building consumer internet space, payment processing, e-commerce and/or enterprise. SAAS products. Undergraduate (or higher) degree in computer science/engineering. You have an excellent grasp over theoretical and applied computer science.
Job Description
Responsibilities You can take responsibility of large sized projects. You can take full responsibility of one or more core modules and/or technical verticals / libraries / frameworks / components. This will include design and architecture, evaluating and deciding which framework/language/data store/tools to us, preparing roadmaps and timely delivery. You understand the business impact of your decisions. You will review code and ensure that implementations are testable, performant, scalable, documented and secure. You will work closely with product, design, revenue, platform and growth teams. You can take responsibility of large sized projects involving inter-departmental stakeholders. You can take full responsibility of one or more core modules and/or technical verticals / libraries / frameworks / components. Payment processing framework capable of supporting multiple payment methods (cards, netbanking, UPI, wallets, etc.) with one or more payment method supported across multiple payment gateways. This will include design and architecture, evaluating and deciding which framework/language/data store/tools to us, preparing roadmaps and timely delivery. You will drive engineering best practices, recruit other engineers, lead and manage teams, conduct performance reviews and mentor other engineers. You will review code and ensure that implementations are testable, performant, scalable, documented and secure. You will work closely with product, design, revenue, platform and growth teams.
Requirements 3-5 Years of Experience in software engineering.
5-10 years of industry experience in software engineering building consumer internet space, payment processing, e-commerce and/or enterprise SAAS products. Bachelor's Degree in Computer Science or related field, or 3+ years relevant work experience. Undergraduate (or higher) degree in computer science/engineering. You have an excellent grasp over theoretical and applied computer science. You have excellent problem solving and analytical skills. You should be able to identify systemic issues, performance bottlenecks and design/architect improvements. Experience with working on PCI compliant infrastructure. You should be able to build at this engineering level Store builder (products with multi-level variants (colour, size, etc.), SKUs, discounts) and shopping cart. Highly concurrent double entry accounting system. You have excellent problem solving and analytical skills. You should be able to identify systemic issues, performance bottlenecks and design/architect improvements. Good hold on data structures and algorithms. Strong object-oriented design skills, and an uncanny ability to design intuitive modules and class-level interface.
Desired Skills and Experience Python, Golang, Java, Ruby on Rails, Django










