Principal Full Stack Software Engineer Job at Piper Companies (Smithfield, RI or Merrimack, NH)

Principal Full Stack Software Engineer

We're looking for a Principal Full Stack Software Engineer to join our team, pas...

Location

United States

Salary:

171900.00 - 269075.00 USD / Year

Atlassian

Expiration Date

Until further notice

Requirements

10+ years experience in Full Stack development with one or more prominent languages such as Java, Scala, Node, Javascript, React
Bachelor's or Master's degree (preferably a Computer Science degree or equivalent experience)
Deep experience in systems engineering at scale with regards to testing, reliability, security, and observability
Excellent communication skills in written and verbal forms, and an ability to communicate complex technical issues to a range of technical and non-technical audiences (management, peers)
Experience with collaborating with and mentoring junior members of the team
Consider the customer impact when making technical decisions
Familiarity with A/B testing techniques

Job Responsibility

Regularly tackle the largest and most complex problems on the team, from technical design to launch
Provide technical leadership on high-impact projects and determine plans-of-attack on large projects
Routinely tackle complex architecture challenges and apply architectural standards and start using them on new projects
Be a champion across the Atlassian organisation for continually raising the technical bar and evangelizing a high technical standard
Partner across Engineering teams to take on company-wide initiatives spanning multiple projects
Transfer your depth of knowledge and share best engineering practices to improve engineering excellence
Mentor and grow the next generation of technical leaders at Atlassian

What we offer

Health and wellbeing resources
Paid volunteer days

Fulltime

Senior Principal Software Engineer

Atlassian’s Global Experiences organization is dedicated to creating unified, se...

Location

Salary:

Not provided

Atlassian

Expiration Date

Until further notice

Requirements

15+ years of experience in software engineering, with deep expertise in platform and product engineering at scale
Exceptional communication and collaboration skills
able to influence and partner across teams
Deep product engineering background, ideally with experience in platform environments at scale
Full stack experience preferred, or strong back-end skills with front-end capability
Proven ability to architect, build, and operate large-scale, distributed systems and user-facing applications
Strong product mindset and UX sensibility
Experience leading multi-year, cross-org technical initiatives that drive business outcomes
Passion for innovation, continuous improvement, and fostering an inclusive, high-performing engineering environment

Job Responsibility

Leading technical strategy and architecture for Platform Apps, ensuring solutions are robust, secure, and consistent
Driving innovation in user and admin experiences, including integrating AI-powered insights and advancing Atlassian’s System of Work
Collaborating with product, UX, and engineering leaders to define and deliver a roadmap of high-impact, standalone apps
Managing negotiations and dependencies across multiple teams and departments, balancing deep project involvement with platform-wide strategic thinking
Standardising and mechanising app development processes , transitioning from ad hoc to scalable, repeatable approaches
Mentoring engineers and championing engineering excellence, continuous improvement, and an inclusive culture

What we offer

Flexibility: Work from anywhere Atlassian has a legal entity, with support for remote, hybrid, or in-office work
Health and wellbeing resources
Paid volunteer days

Principal Software Engineer

About LogRocket: Founded in 2016, LogRocket's goal is to make every experience o...

Location

United States , Boston or NYC

Salary:

225000.00 - 260000.00 USD / Year

LogRocket

Expiration Date

Until further notice

Requirements

7+ years of experience in a full stack or backend development role, preferably with a SaaS company
Experience with state of the art cloud technologies, including architectural principles, specific tools of the trade, and their strengths and weaknesses
Hands-on experience building and redesigning highly available distributed systems
Familiarity with modern Javascript-based applications and frameworks
Experience in development environments with demanding scalability or availability requirements
A strong collaborator who is transparent about progress on tasks, seeks feedback early and often, works effectively with the team to deliver on engineering estimates
Acts as a mentor to junior engineers and provides coaching to upskill other team members

Job Responsibility

Design a system to automatically detect the most common user paths across millions of events
Implement a search backend that allows users to search in real time across billions of log entries
Build a machine learning pipeline that automatically detects bugs in our users' apps
Automate database scaling to improve operating cost while maintaining the ability to respond to traffic spikes
Build a system that automatically recommends integrations for customers based on their toolset

What we offer

Catered lunch and an impressive array of your favorite snacks (healthy AND non-healthy!)
Unlimited vacation policy
Health, Dental, Vision benefits, 401k, commuter benefits
Generous stock options
Regular team outings and activities (from boat rides to paintball, we’ll try anything!)

Fulltime

Principal Software Engineer – Cloud Security

Principal Software Engineer – Cloud Security role at Hewlett Packard Enterprise,...

Location

Israel , Tel Aviv

Salary:

Not provided

Hewlett Packard Enterprise

Expiration Date

Until further notice

Requirements

Bachelor's or master’s degree in computer science, engineering, information systems, or closely related quantitative discipline
Typically, 10-15 years’ experience
Deep expertise in software systems design, development methodologies, and integration across diverse platforms and technologies
Strong business acumen, focusing on aligning technological initiatives with business goals and driving sustainable growth and profitability
Exceptional analytical and problem-solving skills, with the ability to navigate complex technical challenges and drive impactful solutions
Track record of driving technological innovation, with a portfolio of patents and successful product deployments
Exceptional communication and stakeholder management skills, with the ability to effectively convey complex technical concepts to non-technical audiences and influence decision-making at the executive level

Job Responsibility

Leads the identification, evaluation, and adoption of cutting-edge technologies, innovations, and strategic partnerships to drive growth and competitiveness
Drives developing and implementing robust methodologies, standards, and best practices for software systems design, development, and integration
Leverages recognized domain expertise and experience to influence decisions
Collaborates with executive leadership to align technology initiatives with business objectives, ensuring technology investments deliver measurable value and impact
Champion a culture of continuous innovation, thought leadership, and excellence in software systems design and help build technical community
Provides strategic guidance and mentorship to senior technical teams, fostering a culture of collaboration, creativity, and high-performance outcomes
Analyzes science, engineering, business, and other data processing problems to develop and implement solutions to complex application problems, system administration issues, or network concerns

What we offer

Health & Wellbeing
Personal & Professional Development
Unconditional Inclusion

Fulltime

Principal Full Stack Engineer

As a Principal Full Stack Engineer, you will be responsible for architecting, de...

Location

United States , San Francisco

Salary:

170800.00 - 274300.00 USD / Year

Atlassian

Expiration Date

Until further notice

Requirements

Business Applications Experience with Oracle Fusion Cloud, Zuora Revenue, Coupa, Anaplan, Avalara, and prior QTC architecture experience
Strong proficiency in modern programming languages (e.g., Java, Python) and frameworks (e.g., React, Node.js)
Exposure to integration platforms such as Workato and RPA platforms such as UIPath
Experience with AI technologies and machine learning frameworks, with a focus on integrating these into business applications
Familiarity with cloud environments such as AWS or GCP, and experience with deploying and managing applications in the cloud
Ability to tackle complex technical challenges and provide innovative solutions
Excellent communication skills to collaborate effectively with cross-functional and leadership teams both across Engineering and Finance organizations

Job Responsibility

Design and implement scalable and robust full-stack solutions that integrate with finance systems or business applications
Collaborate with data scientists and machine learning engineers to incorporate AI features into products, enhancing functionality and user experience
Lead technical design and architecture discussions, ensuring best practices are followed in software development and AI integration
Work closely with technical product managers (TPM), designers, and other engineers and business teams to deliver high-quality products that meet business needs
Drive innovation by exploring new technologies and methodologies to improve product offerings and development processes

What we offer

health coverage
paid volunteer days
wellness resources

Fulltime

Principal Full Stack Software Engineer

We're looking for a Principal Full Stack Software Engineer to join our team, foc...

Location

Poland , Gdańsk

Salary:

324000.00 - 433200.00 PLN / Year

Atlassian

Expiration Date

Until further notice

Requirements

10+ years in a software development team with strong fundamental software development skills
Experience with .NET Framework (C#)
Proficiency in web-based applications, architecture, and REST API integration
Experience in resolving customer issues through code error diagnosis, debugging, validation, and root cause analysis
Strong knowledge of HTML, CSS, JavaScript, jQuery, and browser/JavaScript fundamentals (React is a plus)
Familiarity with scripting languages and databases such as MSSQL and Postgres
Security-conscious approach to development
Experience in product experimentation and a track record of delivering value to customers

Job Responsibility

Understand the user journey and funnel to enhance Jira Align product strategy and direction by collaborating with product, design, and engineering teams
Guide the technical direction for implementing large-scale product features, evaluating trade-offs between correctness, robustness, performance, and customer impact to ensure optimal solutions
Debug team inefficiencies and ship well-tested, secure, reliable, and maintainable code, always prioritizing customer interests
Contribute to code reviews, documentation, and complex bug fixes with a focus on security, performance, and reliability
Mentor teammates to improve their skills and the overall growth of the engineering team, identifying blockers to ensure software engineering excellence in design principles, unit testing, performance engineering, and best practices for security and privacy

What we offer

This role may also be eligible for benefits, bonuses, commissions, and equity

Fulltime

Principal Software Engineer, Forward Deployed

As a Principal Software Engineer, Forward Deployed Engineer (FDE) you'll work di...

Location

France , Paris

Salary:

Not provided

Invisible Technologies

Expiration Date

Until further notice

Requirements

10+ years of software engineering experience, including significant time spent building data, ML, or backend systems
Deep proficiency in Python with hands-on experience using Hugging Face, LangChain, OpenAI, Pinecone, and related ecosystems
Skilled in full-stack and API-based deployment patterns, including Docker, FastAPI, Kubernetes, and cloud environments (GCP, AWS)
Experienced with workflow orchestration libraries, pub/sub systems (Kafka), and schema governance
Expertise in data governance and operations, including Unity Catalog and policy management, cluster/job orchestration, data contracts and quality enforcement, Delta/ETL pipelines, and replay processes
Strong product and system design instincts — you understand business needs and how to translate them into technical architecture
Experience building usable systems from messy data and ambiguous requirements
Excellent communication and client-facing skills
you’ve led conversations with technical and non-technical stakeholders alike
Proven experience owning projects from scoping through deployment in ambiguous, high-stakes environments

Job Responsibility

Collaborate with delivery leaders to scope technical solutions to operational problems
Identify workflow optimizations through deep engagement with customer problems and work to build into a stable and scalable solution
Design and implement AI-powered workflows using LLMs, embedding models, retrieval systems, and automation tools
Translate messy real-world constraints (e.g., inconsistent data, latency requirements) into elegant engineering solutions
Iterate quickly based on real-time feedback from operators and clients
Build reusable tooling and infrastructure that accelerates future deployments

What we offer

Bonuses and equity are included in offers above entry level

Fulltime

Principal Engineer, Software - Android

At T-Mobile, we invest in YOU! Our Total Rewards Package ensures that employees ...

Location

United States , Bellevue; Denver; Overland Park; Frisco

Salary:

133500.00 - 240700.00 USD / Year

T-Mobile

Expiration Date

Until further notice

Requirements

7+ years technical engineering experience
Experience in mobile software development using Kotlin, Jetpack Compose or Android SDK
Developing sophisticated Android mobile applications
Experience building a scalable customer facing application used by millions of customers
Provide on-call and in-person support for troubleshooting, isolation, maintenance, operations, patching, incident management, problem management, build and deployments for owned software and systems
Hands on experience in developing mobile networking, REST web-services, understanding large and complex code bases that involves mobile, backend and external SDK integration
Designing mobile application using VIPER, Factory, DAO, MVVM, MVC, Delegate, Builder, Adapter, Singleton and Facade design patterns and architecture
Experience in API design, SDK architecture, and mobile software lifecycle development practices
BS degree in Computer Science, Information Technology, or equivalent experience
Communication

Job Responsibility

Drives projects with the Product, UX/UI and Backend teams to design, build and extend consumer facing new products, platforms, and features
Improve product quality through code reviews, writing effective unit tests
Ability to digest feature requirements and high-level end to end design to guide in coding approach and work breakdown
Ability to produce a low-level design document to detail feature implementation
Presents project improvement scenarios to management for consideration
Lead development team in building native functionality with optimization and expansion to support T-Mobile’s Digital First mission
Present highly technical concepts to both technical and non-technical decision-makers
Continuously learns, builds content, and guides others specific subject areas
Informally coaches and gives to the development of others through mentoring or in house workshops and learning sessions
Develops engineers across functional teams on technology decisions

What we offer

Competitive base salary and compensation package
Annual stock grant
Employee stock purchase plan
401(k)
Access to free, year-round money coaches
Medical, dental and vision insurance
Flexible spending account
Paid time off
Up to 12 paid holidays
Paid parental and family leave

Fulltime

Principal Full Stack Software Engineer

Piper Companies

Location:
United States , Smithfield, RI or Merrimack, NH

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
January 18, 2026

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Principal Full Stack Software Engineer

Piper Companies

Location:United States , Smithfield, RI or Merrimack, NH

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:January 18, 2026

Looking for more opportunities? Search for other job offers that match your skills and interests.

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Principal Engineer, Software - Android

Location:
United States , Smithfield, RI or Merrimack, NH

Category:
IT - Software Development

Contract Type:
Not provided

Job Posted:
January 18, 2026