Referso Jobs

Write clean, scalable code using modern programming languages.
Design, develop, test, and deploy applications and systems.
Collaborate with internal teams to produce software design and architecture.
Develop documentation throughout the software development lifecycle.
Work with stakeholders to deliver complex products from inception to implementation.

Skills

object-oriented programming version control systems continuous integration/deployment test-driven development behavior-driven development database technologies messaging queues REST APIs

Software Engineer

Visa · Posted Sep 4, 2026

Open

Singapore
On-site
Full-time
3+ years

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Full Stack Java Developer for Visa Client Product Test Tool application

Responsibilities

Write, modify, and review high-quality, testable, and efficient code across front-end, back-end, and data layers.
Integrate systems via APIs, messaging queues, and databases.
Develop and maintain data pipelines and large-scale data processing jobs using appropriate frameworks and cloud services.
Develop unit, integration, and end-to-end tests with a strong focus on automation.
Maintain CI pipelines to run tests automatically upon code commits.

Requirements

Bachelor's degree
Nice to have: Java 17+
Nice to have: Hibernate
Nice to have: MySQL
Nice to have: Spring Boot

Skills

Java 17+Hibernate MySQL Spring Boot React Kubernetes AWS

Application Support Engineer

Kyndryl · Posted Nov 6, 2026

Open

Bangalore, Karnataka, India
Hybrid
Full-time · Mid

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Design, build and maintain high-volume business logic running on the mainframe, while refactoring legacy code to enable modern cloud and mobile applications to interact with core mainframe data.

Responsibilities

Monitor the architecture and identify opportunities to optimize code to maintain and enhance mainframe performance.
Debug, troubleshoot, and analyze complex system interactions to keep mission-critical applications running.
Extract business logic from legacy systems for migration or integration with cloud-based services.

Requirements

Bachelor's degree in Computer Science
related technical field
Nice to have: Azure
Nice to have: AWS
Nice to have: Google GCP

Skills

Java Python .Net Relational databases NoSQL databases Data mapping XML/JSON REST-based web services

SW Engineer (Peformance Engineering)

Visa · Posted Nov 6, 2026

Open

Singapore
On-site
3+ years

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Software Engineers conduct, plan, or oversee one or more aspects of the analysis, design, programming, debugging, and modification of computer programs for commercial or end user applications.

Responsibilities

Write, modify, and review high-quality, testable, and efficient code across front-end, back-end, and data layers.
Integrate systems via APIs, messaging queues, and databases.
Develop and maintain data pipelines and large-scale data processing jobs using appropriate frameworks and cloud services.
Develop unit, integration, and end-to-end tests with a strong focus on automation.
Maintain CI pipelines to run tests automatically upon code commits.

Requirements

Bachelor's degree
Nice to have: data pipelines
Nice to have: large-scale data processing
Nice to have: AI-powered coding tools
Nice to have: performance optimization

Skills

Java Python Angular React APIs messaging queues

Technology Lead

Kyndryl · Posted Nov 6, 2026

Open

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Lead technology initiatives for mainframe modernization, designing, building, and maintaining high-volume business logic and refactoring legacy code for cloud integration.

Responsibilities

Design, build and maintain high-volume business logic on mainframe
Monitor architecture to optimize code and maintain performance
Debug, troubleshoot, and analyze complex system interactions
Extract business logic from legacy systems for migration or integration with cloud-based services

Requirements

Bachelor's degree in Computer Science or related technical field
Nice to have: Certification in Azure, AWS, or Google GCP
Nice to have: DevOps tools

Skills

Java Python .Net debugging problem-solving software development methodologies relational databases NoSQL databases data mapping XML JSON REST-based web services architecture design Microservices architecture containers Docker

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GoLang React Developer

ImagineX Consulting · Posted Nov 5, 2026

Open

Atlanta, Georgia, United States
On-site
Full-time · Senior
5+ years

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Senior GoLang Developer leading backend services and contributing to React.js front-end applications.

Responsibilities

Design, develop, and maintain high-performance backend services using Go.
Build and maintain responsive, reusable React.js components and front-end features that integrate with Go-based APIs.
Architect distributed systems and microservices with a focus on scalability, reliability, and observability.
Design and document clean, well-versioned APIs (REST, gRPC, or GraphQL) that support both internal services and front-end applications.
Optimize performance across APIs, data pipelines, and service-to-service communication.

Requirements

Nice to have: Next.js
Nice to have: Jest
Nice to have: React Testing Library
Nice to have: Cypress
Nice to have: Playwright

Skills

Go React.js REST gRPC GraphQL AWS

Senior Java Developer

Citi · Posted Nov 5, 2026

Open

Mississauga, Ontario, Canada
Full-time · Senior
$94K–$142K per year
5–8 years

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Senior Java Developer responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team.

Compensation

$94,300.00 - $141,500.00

Responsibilities

Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas
Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users
Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement
Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality
Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems

Requirements

Bachelor’s degree/University degree or equivalent experience

Skills

Senior Software Engineer

Kyndryl · Posted Nov 5, 2026

Open

Bangalore, Karnataka, India
Hybrid
Full-time · Senior

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Senior Software Engineer focused on modernizing legacy systems, refactoring code for cloud and mobile applications, and maintaining mission-critical mainframe systems.

Responsibilities

Monitor architecture and identify opportunities to optimize code to enhance performance
Debug, troubleshoot and analyze complex system interactions to keep mission-critical applications running
Extract business logic from legacy systems for migration or integration with cloud-based services
Design, build and maintain high-volume business logic that runs on the mainframe

Requirements

Bachelor's degree in Computer Science or related technical field
Nice to have: Azure
Nice to have: AWS
Nice to have: Google GCP
Nice to have: DevOps tools

Skills

Java Python .Net Relational databases NoSQL databases XML JSON

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