Senior Software Engineer (Web) Jobs

New

Senior Software Engineer

We are seeking a skilled and forward-thinking senior software engineer to join o...

Location

United States , Southfield

Salary:

Not provided

123 NET

Expiration Date

Until further notice

Requirements

3+ years of experience in the web application realm of software engineering
Bachelor’s degree in Computer Science or a related field, or equivalent professional experience
Perl, or desire to work in Perl (if you know Mojolicious, even better!)
JavaScript
SQL (MariaDB)
Vue.js (or another modern framework)
HTML/CSS
Linux proficiency
Kubernetes + Docker
REST API development

Job Responsibility

Collaborate with stakeholders to gather and refine technical requirements, ensuring alignment with business goals
Develop and implement solutions iteratively, incorporating feedback to refine features and improve functionality
Integrate third-party APIs and optimize existing systems to enhance automation and efficiency
Perform code reviews, providing constructive feedback to improve code quality, maintainability, and best practices
Mentor junior engineers, fostering their growth through guidance, technical support, and knowledge sharing
Stay up to date with industry trends, continuously improving development processes and tools

What we offer

Health, Dental, and Vision insurance
Paid Holidays
Unlimited Paid Time Off
401(k) with Matching
Equipment Provided

Fulltime

New

Senior Software Engineer

The Wikimedia Foundation is looking for a Senior Software Engineer to join our t...

Location

United States of America

Salary:

141352.00 - 175725.00 USD / Year

Wikimedia Foundation

Expiration Date

Until further notice

Requirements

Being comfortable working in a semi-ambiguous environment, similar to that of a startup
Experience in supporting complex web applications running on Amazon Web Services or other comparable cloud platforms
Experience working with Kafka or similar distributed event processing systems
Experience working with Nodejs and Go applications
Comfortable with configuration management and orchestration tools (ECS, Kubernetes), and modern observability infrastructure (monitoring, metrics and logging)
Aptitude for automation and streamlining of tasks
Comfortable with shell and scripting languages used in an SRE/Operations engineering context (e.g. Python, Go, Bash, Ruby, etc.)
Good understanding of Linux/Unix fundamentals and debugging skills
Strong English language skills and ability to work independently, as an effective part of a globally distributed team
B.S. or M.S. in Computer Science or equivalent in related work experience

Job Responsibility

Bringing your creativity to improve our current infrastructure
Being a key part of planning our future technical roadmap
Maintaining and improving the reliability of highly used commercial data feeds
Supporting new code/feature deployments
Troubleshooting, debugging and following-up on emerging issues in our application stack and its surroundings
Assisting in the architectural design of new services and making them operate at scale
Incident response, diagnosis and follow-up on system outages or alerts across Wikimedia Enterprise’s production infrastructure
Sharing our values and work in accordance with them

Fulltime

New

Senior Software Engineer - Fullstack

We are growing the engineering team and looking for engineers who have the chops...

Location

United States , New York City

Salary:

180000.00 - 220000.00 USD / Year

Sigma Computing

Expiration Date

Until further notice

Requirements

Strong Computer Science fundamentals
5+ years industry experience building and maintaining high-quality software
Experience building and deploying robust and secure web APIs
Desire to be a great teammate and have fun at work
Strong sense of craftsmanship, and a healthy academic curiosity

Job Responsibility

Solve challenging problems that arise in providing an interactive experience on data warehouses for data exploration and analysis
Build with modern tools and languages like Rust, Go, GraphQL, and Kubernetes
Build infrastructure to support a modern cloud application
Develop new algorithms and techniques for improving the performance and interactivity of our multi-tenant cloud application
Design and implement new technologies and features to support our fast growing user base
Collaborate with cross-functional groups - backend, frontend, design, product, customer support, sales and marketing to build an innovative product

What we offer

Equity
Generous health benefits
Flexible time off policy
Paid bonding time for all new parents
Traditional and Roth 401k
Commuter and FSA benefits
Lunch Program
Dog friendly office

Fulltime

New

Senior Software Engineer - Fullstack

Sigma is transforming how businesses run by delivering a high performance platfo...

Location

United States , San Francisco

Salary:

150000.00 - 220000.00 USD / Year

Sigma Computing

Expiration Date

Until further notice

Requirements

5+ years industry experience building and maintaining high-quality software
Experience building and deploying robust and secure web applications in a continuous deployment environment
Desire to be a great teammate and have fun at work without compromising ownership towards your work
Strong sense of craftsmanship, and a healthy academic curiosity to solve challenges at sigma
Strong Computer Science fundamentals

Job Responsibility

Solve challenging problems that arise in providing high performance interactive experience to enable analytics and workflows use cases on top of modern warehouses
Build software using the latest developer tools and using programming languages like Rust, Go, GraphQL, Typescript
Develop new algorithms and techniques for improving the performance and interactivity for enabling analytics and workflows for the world largest companies
Triage product or system issues and debug/track/resolve by analyzing the sources of issues
Design and implement new software features to support our fast growing user growth
Collaborate with cross-functional groups - infrastructure, design, product, customer support, sales and marketing to build an innovative product capabilities

What we offer

Equity
Generous health benefits
Flexible time off policy
Paid bonding time for all new parents
Traditional and Roth 401k
Commuter and FSA benefits
Lunch Program
Dog friendly office

Fulltime

New

Senior Software Engineer

We are currently seeking a Senior Software Engineer preferably with an interest ...

Location

Salary:

Not provided

Pluris

Expiration Date

Until further notice

Requirements

A bachelor’s degree or foreign equivalent in computer science or related discipline
5 years of progressive, post-baccalaureate experience in Information Technology in development and application support or infrastructure operations
4 years of scripting and programming experience in JavaScript, SQL, Oracle Perl Shell Scripting, and C/C++
3 years’ experience in Unix/Linux environment, including scripting experience
2 years’ experience integrating enterprise class systems in decision support and operational environments
2 years’ experience in operational support of client systems
Programming experience (Java, PHP, C/C++)
2 years’ experience with very large database design and development
Excellent verbal and written communication skills
Outstanding customer service skills

Job Responsibility

Design complex Oracle SQL queries, including performance optimization
Design, build and execute web applications including all aspects of user interface development, testing and client acceptance
Comprehend and write shell scripts using Unix/Linux native shell commands, Perl and PHP, Java codes using Eclipse
Support large bodies of existing code utilizing big data models and multiple data manipulation techniques
Participate in systems integration in decision support and operational (transactional) environments
Map from business requirements directly to technical design
Develop, implement, and maintain large database sets
Manage client systems and provide 24/7 operational support
Oversee and manage work of technical and functional teams in collaboration with business users and lead large project and/ or system implementations
Communicate complex and difficult concepts clearly with business and external partners

What we offer

Very competitive base salary and bonus plan
The top rated health care plan – with very low cost to employees
Uncapped 401k retirement plan match
Seasonal offsite team activities (Rowing on the Charles, sporting events, paintball, bowling, etc.)

New

Senior Software Engineer - Application Engineer

This is a career-defining opportunity to play a crucial role in a hyper-scale AI...

Location

United States , Salt Lake City

Salary:

Not provided

PassiveLogic

Expiration Date

Until further notice

Requirements

5+ years in software engineering, computer science, front-end web-application development, or a related field
Strong JavaScript, TypeScript, or Swift experience
Strong algorithms, data structures, and coding background
Experience with user interface frameworks (e.g. Angular, React, Vue, Swift UI etc.)
Extraordinary teammate with excellent interpersonal skills
Exceptional communication skills: Ability to collaborate across teams, clearly communicate technical concepts to non-technical stakeholders, and document solutions effectively.
Organized and strategic: Experience in managing complex engineering projects, including timelines, scope, and deliverables, with attention to detail.
Collaborative mindset: Use your skillset to work flexibly across multiple teams and application.
Adaptability: Comfortable in a fast-paced startup environment, eager to learn, iterate, and innovate.
Problem solving: You own this role. When issues arise, be the empowered force that solves them, driving solutions to completion.

Job Responsibility

Design and Implement Front End Architecture: Lead the design and implementation of front end architecture to support native-quality web applications for multi-platform deployment.
Contribute Across Teams: Collaborate cross-functionally to build our technology and celebrate our shared successes. Be impact-driven, seek to be a good employee, neighbor, and global citizen.
Optimize Systems-level Performance: Be a systems-level thinker who researches before they act and values sound processes and broad thinking.
Prioritize Execution, Stability, and Velocity: Focus on delivering short-term wins while maintaining a long-term vision within our shared architecture. Take pride in the impact of our products and in delivering a 'wow' customer experience.
Nerd Out About Your Craft: Dive deep into the details and continuously refine your expertise.

What we offer

Competitive compensation
Generous equity share package
Medical, dental and vision coverage
Disability and life Insurance options
Flex PTO
Team-building events
Free catered lunch in the office Monday — Friday
Free ski pass (We are at the base of Big Cottonwood Canyon)
Free National Park pass

Fulltime

New

Senior Software Engineer - Bank Accounts

At Mercury, our Bank Accounts team plays a similar role for the business: we own...

Location

United States; Canada , San Francisco; New York; Portland

Salary:

200700.00 - 250900.00 USD / Year

Mercury

Expiration Date

Until further notice

Requirements

Proven experience leading technical projects at scale, including planning, execution, and stakeholder management
Strong full-stack engineering skills, with deep knowledge of modern web development practices, API design, and system design
Clear and persuasive communication skills — you can articulate tradeoffs and influence decisions across teams
A mindset that balances urgency with craftsmanship: shipping fast, without cutting corners on quality engineering
Creativity and adaptability — you think beyond the obvious and find solutions that move both product and business forward
A track record of mentoring engineers and helping teams grow

Job Responsibility

Lead Projects End-to-End: Drive technical projects from concept to production. Define solutions, analyze tradeoffs, make critical decisions, and deliver software that works today and is sustainable for tomorrow
Collaborate Across Functions: Partner with product, design, and business stakeholders to shape initiatives. Translate between technical and non-technical audiences to ensure clarity, alignment, and buy-in
Code Craftsmanship: Write clear, testable, and maintainable code. Establish patterns and best practices that your team can follow, ensuring long-term scalability and reliability
Build for Quality & Sustainability: Design extensible systems, make balanced decisions on tech debt, plan careful rollouts, and own the quality of your work through post-launch monitoring
Think Product, Not Just Code: Approach problems with a product mindset. You care as much about the business impact of what you build as the technical design
Mentor & Elevate: Coach engineers on your team by sharing patterns, practices, and critical thinking to raise the technical bar and foster a culture of sustainable engineering

What we offer

base salary
equity
benefits

Fulltime

Senior Software Engineer, Infrastructure

The InfraOps team’s primary goal is to enable and empower Kiddom’s engineering b...

Location

United States , New York City

Salary:

160000.00 - 200000.00 USD / Year

Kiddom

Expiration Date

Until further notice

Requirements

BS or MS in Computer Science or a related field
5+ years professional software engineering experience
Experience with Java, or Python, Go, Clojure in a production environment
Experience designing and building REST APIs
Exposure to authorization technologies (OAuth)
Experience with continuous integration and automation tools and processes
Strong knowledge of design patterns and software engineering best practices
Excellent problem solving and debugging skills
Strong acumen or exposure to DevOps or SRE methodologies
Keen sense for SecOps.

Job Responsibility

Evangelizing and fostering a healthy DevOps culture here at Kiddom, working with teams to establish best practices and help guide new and existing services.
Practicing Infrastructure as Code (IaC) wherever possible, giving us the confidence in repeatable processes that can be automated.
Grow our DevOps efforts from small scale to large scale multi-region
Share ownership of the entire infrastructure architecture
Aim for high availability, high resiliency
Support the engineering team with tools to evaluate the performance of their code in production environments, speed up CI/CD pipeline, & feature verification
support the engineering team with tools to speed up CI/CD pipeline, feature verification
Design and build a scalable, generalized framework for third-party API integrations
Leverage existing infrastructure and components to build RESTful web services
Build APIs and robust testing environments for internal and external developers

What we offer

Competitive salary
Meaningful equity
Health insurance benefits: medical (various PPO/HMO/HSA plans), dental, vision, disability and life insurance
One Medical membership (in participating locations)
Flexible vacation time policy (subject to internal approval). Average use 4 weeks off per year.
10 paid sick days per year (pro rated depending on start date)
Paid holidays
Paid bereavement leave
Paid family leave after birth/adoption. Minimum of 16 paid weeks for birthing parents, 10 weeks for caretaker parents. Meant to supplement benefits offered by State.
Commuter and FSA plans

Fulltime

Senior Software Engineer (Web)

EarnIn

Location:
Thailand, Bangkok

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
December 08, 2025

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Senior Software Engineer (Web)

EarnIn

Location:Thailand, Bangkok

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:December 08, 2025

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Contract Type:
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Job Posted:
December 08, 2025