Senior ReactJS Software Engineer Job at Miracle Software Systems (Michigan)

Software Engineer II and Senior Software Engineer

The FIO (Office Files and Identity) Team drives collaboration, identity, cloud f...

Location

United States , Redmond

Salary:

100600.00 - 199000.00 USD / Year

Microsoft Corporation

Expiration Date

Until further notice

Requirements

Bachelor's Degree in Computer Science or related technical field AND 2+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, or Rust
OR equivalent experience
4+ years industry engineering experience coding in languages including, but not limited to, C, C++, C#, Java or Rust
4+ years industry experience building and shipping production quality, performant and cross-platform applications
Experience collaborating cross-team and cross-function to deliver software features or projects
Platform-specific experience building Windows, MacOS, iOS or Android applications
Experience designing and implementing efficient network communications, including network protocols, performance and reliability tooling, modeling and implementing complex customer scenarios across network services
Experience designing and implementing client-side storage stacks, with a focus on correctness, resiliency, performance, and adaptability
Understanding of client file system design and APIs, including advanced performance optimizations
Experience directly implementing large-scale data pipelines for product telemetry, with ability to evolve system as business and technical needs change

Job Responsibility

Design and write code
Work across organizations and directly with partners both in Office and across Microsoft, including other engineers and product leaders
Use data as the basis for decision making
Be a steward of products that ship to hundreds of millions of customers around the world, staying connected to customers through data and feedback and being agile and responsive to issues
Grow as an engineer in a modern and highly impactful team

Fulltime

Senior Software Engineer Reactjs

SpectraMedix is seeking a seasoned ReactJS Sr. Software Engineer who will collab...

Location

India , Hyderabad

Salary:

Not provided

SpectraMedix

Expiration Date

Until further notice

Requirements

4–7 years of experience
Bachelors / Masters in any engineering or technical field
Core: ReactJS (Component lifecycle, hooks, context, performance), Advanced knowledge of JavaScript and ES6+, HTML5, CSS3/SCSS, TypeScript
UI: Strong hands-on experience with Material UI (including DataGrid), Custom Themes, CSS Flex/Grid and responsive design principles
State/Data: Redux Toolkit, Zustand, TanStack Query
Stack: Next.js (SSR/SSG), NodeJS, Vite/Webpack, REST
Testing/Tools: Jest, RTL, Docker, CI/CD
Version Control: GitLab/ GitHub / SVN
Focus Areas: Performance optimization, Code‑splitting, Micro‑frontends
Code Quality (SAST): ESLint/ Prettier

Job Responsibility

Develop scalable, reusable, and high-performance UI components based on Sprint scope or Project Plan
Translate High-Level Design documents into modular and maintainable frontend architecture
Build responsive, accessible, and enterprise-grade web applications
Follow TDD approach and implement unit, integration, and UI tests
Ensure adherence to coding standards, security guidelines, and performance best practices
Optimize applications for maximum speed, scalability, and maintainability
Participate in code reviews, UI architecture discussions, and performance audits
Contribute to CI/CD pipelines and automated frontend deployments
Ensure cross-browser compatibility and adherence to accessibility standards
Deliver high-quality outputs in UI design, development, and testing

Fulltime

Senior Software Engineer - ReactJS (Next-Gen Firewall)

As a Senior Software Engineer – Front End, you will be responsible for designing...

Location

Vietnam , Ho Chi Minh City

Salary:

Not provided

Qualgo

Expiration Date

Until further notice

Requirements

Bachelor's degree in Computer Science, Engineering, or a related field
5+ years of experience in frontend software engineering
Deep expertise in ReactJS and modern hooks patterns
Strong proficiency in TypeScript (Non-negotiable for this role)
Experience building complex Enterprise B2B Dashboards or Management Consoles (not just static websites)
Experience with Data Visualization libraries (D3.js, Chart.js, ECharts, or similar)
Experience handling Real-time data via WebSockets or Server-Sent Events (SSE)
Analytical Mindset: Ability to understand complex technical data and figure out how to present it simply
Precision: In a security product, UI bugs can lead to security holes. Attention to detail is paramount
Collaboration: Ability to work with "low-level" system engineers and "high-level" product designers simultaneously

Job Responsibility

Design and build complex, data-heavy dashboards using ReactJS and TypeScript to monitor network traffic and security events
Develop "Zero-Trust" policy editors and firewall rule management interfaces that are intuitive yet powerful
Optimize rendering performance to handle thousands of real-time events per second (logs, alerts, packet flows) without browser lag
Work with Data Scientists to visualize AI detection models (e.g., distinguishing between normal traffic and an anomaly)
Implement advanced data visualizations (using D3.js, Recharts, or WebGL/Three.js) to represent global threat maps, network topology graphs, and attack vectors
Translate complex AI "confidence scores" into clear, human-readable risk indicators for network administrators
Architect and implement robust WebSocket connections to stream live firewall logs and threat alerts to the browser
Manage complex client-side state (using Redux, Zustand, or TanStack Query) to ensure the UI reflects the exact state of the network devices in real-time
Translate networking concepts (IP ranges, Subnets, DNS, VPN tunnels) into user-friendly UI components
Champion UI/UX best practices for "Critical Control Systems"—ensuring that blocking a threat or changing a firewall rule is safe, confirmed, and error-free

What we offer

Meaningful work & impact: Work on products that protect users’ data and make a real difference in people’s lives
Competitive rewards: Great work deserves great rewards — enjoy competitive pay and recognition for contribution and impact you make
Growth & well-being: Fuel your growth with hands-on learning. Enjoy extra leaves, and premium healthcare for you and your family
People & workspace: Collaborate, create, and celebrate — a modern workspace built for teamwork, fun, and innovation
Young & dynamic environment: Work with stunning colleagues where creativity thrives, ideas are welcome, and every day brings new challenges and opportunities

New

Senior Software Engineer

Wells Fargo is seeking a Senior Software Engineer.

Location

India , Bengaluru

Salary:

Not provided

Wells Fargo

Expiration Date

June 17, 2026

Requirements

4+ years of Software Engineering experience, or equivalent demonstrated through one or a combination of the following: work experience, training, military experience, education
4+ years of hands-on experience in building application using Java, Spring framework and Spring Boot
Strong experience in designing and building microservices/ web services
Experience in Front end development experience with ReactJS or Angular JavaScript, NodeJS
Familiarity with MongoDB, including querying, data validation, and understanding of document schemas
Experience in the payments domain with working knowledge of Wires/SWIFT, and ISO 20022 message structures
Familiarity with ElasticSearch, including indexing concepts, search/query validation, and interpreting results
Familiarity with GenAI tools such as GitHub Copilot, Agentic AI workflows, and LLM based test generation
Knowledge on messaging service like Kafka, Solace, etc
Experience in working on relation database like Oracle, MS SQL Server, etc

Job Responsibility

Lead moderately complex initiatives and deliverables within technical domain environments
Contribute to large scale planning of strategies
Design, code, test, debug, and document for projects and programs associated with technology domain, including upgrades and deployments
Review moderately complex technical challenges that require an in-depth evaluation of technologies and procedures
Resolve moderately complex issues and lead a team to meet existing client needs or potential new clients needs while leveraging solid understanding of the function, policies, procedures, or compliance requirements
Collaborate and consult with peers, colleagues, and mid-level managers to resolve technical challenges and achieve goals
Lead projects and act as an escalation point, provide guidance and direction to less experienced staff

Fulltime

!

Senior Software Engineer

Riverstone Enterprise Solutions, an Envision Innovative Solutions Company, deliv...

Location

United States , Columbia

Salary:

185000.00 - 215000.00 USD / Year

Riverstone Enterprise Solutions

Expiration Date

Until further notice

Requirements

14 years' experience as a Software Engineer, in programs and contracts of similar scope, type, and complexity
Bachelor's degree in computer science or related discipline from an accredited college or university is required. Four (4) years additional SWE experience on projects with similar software processes may be substituted for a bachelor's degree
Current/Active TS/SCI with Full Scope Polygraph

Job Responsibility

Develop, maintain, and enhance complex and diverse software systems based upon documented requirements
Review and test software components for adherence to the design requirements and documents test results
Analyze user requirements to derive software design and performance requirements
Debug existing software and correct defects
Provide recommendations for improving documentation and software development process standards
Design and code new software or modify existing software to add new features
Integrate existing software into new or modified systems or operating environments
Develop simple data queries for existing or proposed databases or data repository
Write or review software and system documentation
Serve as team lead at the level appropriate to the software development process being used on any project

Fulltime

Senior Software Engineer, Subscriptions

Roku is changing how the world watches TV. Roku is the #1 TV streaming platform ...

Location

United Kingdom , Manchester

Salary:

Not provided

Roku

Expiration Date

Until further notice

Requirements

Extensive experience with C or C++ and Embedded Linux or Native Application Development
In-depth understanding of Linux, tools, libraries, and open source development
Experience developing UI applications using popular frameworks such as ReactJS
Experience with Python, JavaScript, BrightScript, or similar languages
Proven track record of designing and shipping high-quality software on an embedded platform
Experience with OpenGL, DirectX, or any other graphics APIs
Experience writing functional and integration tests
Good understanding of Core OS concepts like memory management and multi-threading
A good understanding of API design, considerations and trade-offs
Consumer electronics experience building Media/Content and/or Ad product

Job Responsibility

Creating C++ and Embedded Linux and Native Applications
Developing UI applications using popular frameworks such as JavaScript, BrightScript and similar languages
Working closely with Cross Functional teams to contribute to our application development
Developing core features for the Roku OS Application framework
Investigating, diagnosing and resolving issues
Writing functional and integration tests
Designing and shipping high-quality software on the Roku embedded platform

What we offer

Global access to mental health and financial wellness support and resources
Local benefits include statutory and voluntary benefits which may include healthcare (medical, dental, and vision), life, accident, disability, commuter, and retirement options (401(k)/pension)
Employees are supported in taking time off, in accordance with local leave policies and other personal needs

Fulltime

Senior Software Engineer

HiOperator’s mission is to automate customer service by pairing great people wit...

Location

United States , Dallas

Salary:

Not provided

Helpcare AI

Expiration Date

Until further notice

Requirements

5+ years of engineering experience
Are a polygot - You enjoy learning about everything, and are capable of explaining your concepts to others
Are collaborative - We work together, learn together, and win as a team
Have empathy - Customer service requires empathy to truly under the customer and deliver the best experience for our clients

Job Responsibility

Build API integrations with various CRMs and other custom applications, utilizing REST/GraphQL/gRPC
Build UI features to support new service offering
Maintain 99% platform uptime
Manage dev ops pipeline
Deploy machine learning models
Build and manage the observability platform for the LLMs we utilize

What we offer

All hires will be eligible for health benefits (medical, dental, vision) after one full calendar month of full time employment
Access to the free onsite gym
PTO/PFT
Dental insurance
Free parking
Health insurance
On-site gym
Paid time off
Vision insurance

Fulltime

Senior Software Engineer – Radiotherapy Positioning & Monitoring

Within our R&D RT Positioning division, several international software and hardw...

Location

Germany , Munich

Salary:

Not provided

Brainlab

Expiration Date

Until further notice

Requirements

Degree in Computer Science, Software Engineering or an equivalent education / working experience
3+ years professional experience in object-oriented software development
Good proficiency in C++
Profound knowledge of object-oriented programming (OOP), software development principles and design patterns
Experience as a full-stack developer
Basic knowledge and experience with ReactJS, TypeScript, and CSS are a plus
Analytical mindset, attention to detail, and a high standard for code quality
Strong team player with ability to collaborate effectively in cross-functional and international teams
Very good communication skills in English
German is a plus

Job Responsibility

Design, develop, and maintain robust and scalable software solutions
Apply object-oriented design principles and established design patterns
Contribute to system architecture, improvement of our existing software design and technical decision-making
Work across the full technology stack, with a primary focus on backend and application logic (C++-based)
Review code, mentor team members, and promote software engineering best practices
Collaborate within a highly skilled, international Scrum team of software and project engineers
Work closely with the team and the Product Owner to develop optimal solutions that address customer needs
Present prototypes to customers and clinical experts, gathering and incorporating feedback
Participate in clinical case visits and perform system testing in real clinical environments

What we offer

Mutually-supportive, international team
Meaningful work with a lasting impact on medical technology
30 vacation days, plus December 24th and December 31st
Bike leasing via cooperation partner 'BikeLeasing'
Parking garage and safe underground bike storage
Award-winning subsidized company restaurant and in-house cafes
Variety-rich fitness program in our ultra-modern 360m2 company gym
Regular after work, team, and company events
Comprehensive training and continuing education opportunities

Fulltime

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Senior ReactJS Software Engineer

Job Description

Job Responsibility

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