Software Dev. Engineer - II

Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting. Required Skills: • Exp. - 4 to 7 years. • Experience in Core Java and Spring Boot. • Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns. • Should have the ability to analyze, design, develop and test complex, low-latency client facing applications. • Good development experience with RDBMS. • Good knowledge of multi-threading and high-performance server-side development. • Basic working knowledge of Unix/Linux. • Excellent problem solving and coding skills. • Strong interpersonal, communication and analytical skills. • Should have the ability to express their design ideas and thoughts. About Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider. 

About the Role

We are looking for a Senior Backend Engineer to join our core engineering team and help build high-

throughput, low-latency services that power real-time trading at scale. What We’re Looking For

You are someone who has built backend systems in a regulated, high-stakes environment — ideally fintech, brokerage, payments, or banking. You think in terms of system reliability, data correctness, and operational

excellence. You take ownership of services end-to-end: from design and implementation through deployment, monitoring, and incident response. You communicate clearly, make pragmatic trade-offs, and hold yourself and

your peers to a high engineering bar. What You’ll Do

• Design, build, and own backend microservices for a real-time trading platform — from API contracts

through to production observability. • Work with databases, caches, and event-driven architectures to ensure high availability and data

consistency across distributed systems. • Build integrations with third-party financial services — clearing, settlement, identity verification, and

payment rails. • Define and enforce engineering standards — code reviews, testing strategies, API design conventions, and incident response processes. • Collaborate with product, design, and cross-functional teams to translate business requirements into

well-scoped technical deliverables. • Participate in on-call rotations and own production reliability for the services you build. • Mentor junior engineers and contribute to a culture of technical excellence and continuous improvement. Must-Have

• 5+ years backend engineering experience with Golang and Java in production. • Strong experience with PostgreSQL, Redis, and event-driven messaging (Kafka, NATS, or RabbitMQ). • Experience building and maintaining REST/gRPC APIs at scale with proper error handling, rate limiting, and versioning. • Understanding of financial systems — ledgers, reconciliation, order lifecycle, or payment processing.

• Experience with microservices architecture, API gateways, and service-to-service communication

patterns. • Familiarity with CI/CD pipelines, containerization (Docker/Kubernetes), and cloud infrastructure (AWS or

GCP). • Strong debugging and incident-response skills in distributed systems. Nice-to-Have

• Prior experience at a brokerage, wealth-tech, neo-bank, or payments company. • Experience with clearing broker integrations or introducing broker models. • Knowledge of compliance and regulatory requirements for cross-border financial products. • Experience with search infrastructure (Typesense, Elasticsearch). • Background in performance engineering — profiling, load testing, and latency optimization. Tech Stack

Languages Golang (primary), Java; Python (analytics/scripting)

Databases PostgreSQL, Redis, Typesense

Messaging Kafka, NATS, SSE / WebSocket

Infrastructure Docker, Kubernetes, AWS/GCP, Terraform

Integrations Clearing broker APIs, KYC providers, payment gateways

Observability Datadog / Grafana, PagerDuty, structured logging (ELK)

About Tamasha

Tamasha is a product-led technology company focused on building immersive,

real-time social and gaming experiences for the next generation of users. Our

products combine scalable backend systems, real-time communication, and AI

driven intelligence to create engaging digital ecosystems.

Our flagship products include:

• Openly – A modern social engagement platform enabling meaningful

conversations and community-driven interactions.

App: https://play.google.com/store/apps/details?id=com.openly.app

• FriendChat – A real-time chat-first social product designed for seamless, low

latency conversations.

App: https://friendchat.app

• Playroom (Voice Chat) – A live voice-based social gaming experience enabling

players to connect, communicate, and collaborate in real time.

App: https://play.google.com/store/apps/details?id=com.playroom.voice

Role Overview

We are looking for a hands-on SDE 2 – Backend Developer (Node.js) who will play

a critical role in building scalable backend systems, integrating AI-driven solutions,

and shaping Tamasha’s technical foundation.Key Responsibilities



Hands-on Engineering: Actively code, design backend architecture, and solve

complex technical problems.

 AI & Emerging Tech: Integrate AI agents, automation, and recommendation

systems.

 Scalable Infrastructure: Design secure, scalable cloud systems on GCP and

Azure.



DevOps & Deployment: Build and manage CI/CD pipelines and monitoring

systems.



Engineering Excellence: Ensure high-quality, secure, and performant code.

 Cross-functional Collaboration: Work closely with product, design, and business

teams.

 Team Building & Mentorship: Mentor engineers and support hiring initiatives.

Required Skills & Experience



3–4 years of backend development experience in a product-based company

 Strong expertise in Node.js (Express / NestJS)



Experience with SQL and NoSQL databases



Hands-on experience with cloud platforms (GCP / Azure)



Experience with CI/CD pipelines and DevOps practices

 Strong understanding of system design and scalability

Why Join Tamasha?

• Build products used by thousands of real users

• Work on AI, real-time systems, and scalable architectures

• High ownership and fast growth opportunities

• Strong engineering culture with startup agility

Key Skills & Requirements

• Strong proficiency in Java 11 and above
• Hands-on expertise in Spring Boot and Microservices Architecture
• Strong Programming, Analytical, and Problem-Solving skills
• Proficiency with NoSQL Databases (MongoDB, Cosmos DB) and RDBMS (SQL/Oracle/Postgres)
• Experience with Messaging Queues (RabbitMQ/Kafka)
• Good understanding of Functional and Domain knowledge
• Expertise in Project Architecture & Data Flows
• Proficient in CI/CD tools (Jenkins or equivalent)
• Strong experience with Testing Frameworks: JUnit, Mockito, Cucumber, BDD
• Basic knowledge of Cloud Platforms (Azure / AWS)
• Familiarity with Project Management Tools – JIRA, Confluence, ServiceNow
• Monitoring tools knowledge like New Relic, Splunk, Nagios (good to have)

Responsibilities

• Design, develop, and maintain scalable backend applications using Java 11+ and Spring Boot
• Build and manage microservices-based solutions ensuring high performance and low latency
• Collaborate with cross-functional teams to define, design, and ship new features
• Implement best practices for CI/CD pipelines and automate deployment workflows
• Ensure code quality through unit testing, integration testing, and BDD practices
• Work with databases (SQL/NoSQL) for data modeling and optimization
• Monitor, troubleshoot, and enhance system performance using tools like Splunk, New Relic, Nagios
• Provide technical guidance and mentorship to team members

• 6+ years of experience in Java backend development with expertise in Spring/Spring Boot and RESTful services.
• Solid grasp of Object-Oriented Programming (OOP), system design, and design patterns.
• Proven experience leading a team of engineers or taking ownership of modules/projects.
• Experience with AWS Cloud services (EC2, Lambda, S3, etc.) is a strong advantage.
• Familiarity with Agile/Scrum methodologies and working in cross-functional teams.
• Excellent problem-solving, debugging, and analytical skills.
• Strong communication and leadership skills.

Software Engineer

Opportunity in this role / Why should you join us?

- You are your own master.  We don't preach you, we just allow you to Innovate, Iterate, Learn and Adapt

- Work with one of India's leading fintech unicorn company

- ESOPs in the company

Requirements

• 3+ years and above exposure in the art of writing codes and solving problems for large scale
• Extensive and expert programming experience in any one programming language (strong OOPS skills preferred). Deep experience in a java programming language
• A solid foundation in computer science, with strong competencies in data structures, algorithms, and software design.
• Have a penchant for solving complex and interesting problems.
• BE/BTech, MTech in Computer Science or related technical discipline (or equivalent).
• Excellent coding skills – should be able to convert the design into code fluently Good skills to write unit & integration tests with reasonable coverage of code & interfaces - TDD is a plus
• Experience in building highly scalable business applications, which involve implementing large complex business flows and dealing with the huge amount of data. Experience with

multi-threading and concurrency programming

• Ability to switch between the technologies and learn new skills on the go.

Roles and Responsibilities

• Drive discussions to create/improve the product, process and technology
• Build abstractions and contracts with separation of concerns for a larger scope
• Rapid prototyping
• Robust and scalable web-based applications
• Do high-level design with guidance; Functional modelling, break-down of a module
• Thinking platforms & reuse, the open-source contribution will be a plus
• Do incremental changes to architecture: impact analysis of the same
• Do performance tuning and improvements in large scale distributed systems
• Mentor young minds and foster team spirit.

• 3+ year of experience in Development in JAVA technology.
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Any Caching Mechanism
• Good at problem solving

Good to Have Skills:

• 4+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem solving skills.
• Ability to work in a fast paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding of AI/ML algorithms is a plus.