Go lang Developer

Hello Everyone,

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. - 5 to 14 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 clientfacing 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 hassuccessfully 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.

Profile- Java Developer

Experience– 4 to 7 Years

Skills Required - Java, Spring Boot, Hibernate, Microservices, Design Patter, JUnit, Mockito

Roles & Responsibilities -

• Experience in Java, J2EE, and Java 8 Features
• Experience in Java frameworks such as Spring, Hibernate.
• Experience in Microservices Architecture.
• Expertise in designing and implementing RESTful APIs.
• Familiarity with build tools such as Ant, Maven, and Gradle
• Proficient understanding of code versioning tools, such as Git
• Familiarity with Agile methodologies and Scrum framework.
• Sound knowledge of Oops programming
• Basic knowledge of any cloud and CI/CD Tools

Strong Backend Engineering (Golang) Profiles

Mandatory (Experience 1) – Must have 3+ years of hands-on backend engineering experience, with at least 2+ years working primarily in Golang on production systems

Mandatory (Experience 2) – Must have strong hands-on experience with Golang, including writing clean, scalable, and maintainable backend services

Mandatory (Experience 3) – Must have experience designing, developing, and owning RESTful and/or gRPC APIs end-to-end (from design to production)

Mandatory (Experience 4) – Must have solid experience working with databases such as PostgreSQL/MySQL/ MongoDB

Mandatory (Experience 5) – Must have a strong understanding of concurrency, performance optimization, and memory management in Go

We’re hiring a remote, contract-based Backend & Infrastructure Engineer who can build and run production systems end-to-end.

You will build and scale high-throughput backend services in Golang and Python, operate ClickHouse-powered analytics at scale, manage Linux servers for maximum uptime, scalability, and reliability, and drive cost efficiency as a core engineering discipline across the entire stack.

What You Will Do:

Backend Development (Golang & Python)

• Design and maintain high-throughput RESTful/gRPC APIs — primarily Golang, Python for tooling and supporting services
• Architect for horizontal scalability, fault tolerance, and low-latency at scale
• Implement caching (Redis/Memcached), rate limiting, efficient serialization, and CI/CD pipelines

Scalable Architecture & System Design

• Design and evolve distributed, resilient backend architecture that scales without proportional cost increase
• Make deliberate trade-offs (CAP, cost vs. performance) and design multi-region HA with automated failover

ClickHouse & Analytical Data Infrastructure

• Deploy, tune, and operate ClickHouse clusters for real-time analytics and high-cardinality OLAP workloads
• Design optimal table engines, partition strategies, materialized views, and query patterns
• Manage cluster scaling, replication, schema migrations, and upstream/downstream integrations

Cost Efficiency & Cost Optimization

• Own cost optimization end-to-end: right-sizing, reserved/spot capacity, storage tiering, query optimization, compression, batching
• Build cost dashboards, budgets, and alerts; drive a culture of cost-aware engineering

Linux Server Management & Infrastructure

• Administer and harden Linux servers (Ubuntu, Debian, CentOS/RHEL) — patching, security, SSH, firewalls
• Manage VPS/bare-metal provisioning, capacity planning, and containerized workloads (Docker, Kubernetes/Nomad)
• Implement Infrastructure-as-Code (Terraform/Pulumi); optionally manage AWS/GCP as needed

Data, Storage & Scheduling

• Optimize SQL schemas and queries (PostgreSQL, MySQL); manage data archival, cold storage, and lifecycle policies
• Build and maintain cron jobs, scheduled tasks, and batch processing systems

Uptime, Reliability & Observability

• Own system uptime: zero-downtime deployments, health checks, self-healing infra, SLOs/SLIs
• Build observability stacks (Prometheus, Grafana, Datadog, OpenTelemetry); structured logging, distributed tracing, alerting
• Drive incident response, root cause analysis, and post-mortems

Required Qualifications:

Must-Have (Critical)

• Deep proficiency in Golang (primary) and Python
• Proven ability to design and build scalable, distributed architectures
• Production experience deploying and operating ClickHouse at scale
• Track record of driving measurable cost efficiency and cost optimization
• 5+ years in backend engineering and infrastructure roles

Also Required

• Strong Linux server administration (Ubuntu, Debian, CentOS/RHEL) — comfortable living in the terminal
• Proven uptime and reliability track record across production infrastructure
• Strong SQL (PostgreSQL, MySQL); experience with high-throughput APIs (10K+ RPS)
• VPS/bare-metal provisioning, Docker, Kubernetes/Nomad, IaC (Terraform/Pulumi)
• Observability tooling (Prometheus, Grafana, Datadog, OpenTelemetry)
• Cron jobs, batch processing, data archival, cold storage management
• Networking fundamentals (DNS, TCP/IP, load balancing, TLS)

Nice to Have

• AWS, GCP, or other major cloud provider experience
• Message queues / event streaming (Kafka, RabbitMQ, SQS/SNS)
• Data pipelines (Airflow, dbt); FinOps practices
• Open-source contributions; compliance background (SOC 2, HIPAA, GDPR)

What We Offer

• Remote, contractual role
• Flexible time zones (overlap for standups + incident coverage)
• Competitive contract compensation + equity
• Long-term engagement opportunity based on performance

Role: React Native Lead

Exp: 5-9 Years

CTC: up to 30 LPA

Location: Bangalroe

Job Description:  

• Job involves working on latest technologies and frameworks in mobile and open source world to develop mobile applications, mobile web sites and rich internet applications.  

• Candidate should be Collaborative and Quality-focused, resourceful initiative taker, and someone who has good English communication skills.  

Desired Candidate Profile:  

• Work as part of a team to build React Native iOS / Android applications for clients.  

• Architect, build and maintain excellent React Native applications with clean code.  

• Experience with React Js, React Native, JavaScript  

• Implement pixel perfect UI's that match designs.  

• Implement clean, modern, smooth animations and transitions that provide an excellent user 

experience.  

• Familiarity with RESTful API.  

• Release applications to IOS and Google Play stores.  

Responsibilities and Duties:

● Java/Java EE application development while providing expertise in the full software development

life cycle, from concept and design to testing.

● Contribute to all phases of the development life cycle

● Write well designed, testable, efficient code

● Ensure designs are in compliance with specifications

● Prepare and produce releases of software components

● Support continuous improvement by investigating alternatives and technologies and presenting

these for architectural review

Required Skills:

● Should have strong knowledge of Core Java and OOPS concepts

● Sound knowledge of Web application development fundamentals and have worked on Servlets,

JSP and any MVC framework

● Strong analytical and reasoning skills and ability to learn and unlearn new technology on back

end as well as on front end

● Ability to understand functional and requirement specifications and transform them to solution

● Understand the client’s problem domain and suggest and implement solution which brings value

to the business

● Can estimate, develop and deliver project from start to end

● Should have professional service experience with any product

● Experience working with onshore team and ability to communicate with clients and stakeholders

● Ready to travel onshore

● Sound knowledge of RDBMS

● Can communicate well with clients and collaborate with cross functional team to deliver high

quality deliverable

● Should have knowledge of Agile/Scrum methodology

● Ability to work on microservices

Why Work at Staunchsys:

● Family Health Cover & Accidental Insurance

● Constant Learning

● Competitive Pay

● Flexible work timings

● 5 days working

● Complimentary Lunch & Snacks

● Personal accident insurance policy

● Encashment facility for both PL & SL