Software Engineer (Full Stack) Job at YC Work at a Startup (London)

Full Stack Software Engineer

As (Senior) Full Stack Software Engineer with a passion for Agile in Brainlab’s ...

Location

Germany , Munich

Salary:

Not provided

Brainlab

Expiration Date

Until further notice

Requirements

Education in Computer Science, Mathematics, Physics, Engineering or related discipline, or equivalent working experience
Several years of professional experience in full stack development
Expertise in C++
Experience with automated testing and building CI/CD pipelines
Natural Team player, strong communication skills and ability to work cross-functionally
Fluent in written and spoken English

Job Responsibility

Working in a LeSS environment as part of a cross-functional team, collaborating closely with Product Owners and departments such as Quality Assurance, Usability, and other teams involved in the solutions
Design, develop, integrate, test, release and maintain applications that are used to plan and perform spinal surgical interventions to deliver innovative, user-centered solutions that improve patient care
Take ownership in building and evolving our BDD, TDD practices and our CI pipelines
Create systems that are scalable, maintainable with clean, readable code in C++, HTML5 (Python, Rust, ...)
Work according to medical software development standards
Stay informed on emerging technologies, industry trends, and healthcare developments

What we offer

30 vacation days, plus December 24th and December 31st
Flexible working hours
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

Full Stack Software Engineer

As a full stack developer, you can resolve a problem with a complete end-to-end ...

Location

United States , Annapolis Junction; Laurel

Salary:

69400.00 - 158000.00 USD / Year

Booz Allen Hamilton

Expiration Date

Until further notice

Requirements

4+ years of experience in full-stack application design and development, including implementation of relational or NoSQL databases, web-based APIs such as REST, or frontend frameworks
4+ years of experience developing backend web services using Python and FastAPI
Experience developing on AWS Infrastructure and Platforms
Experience working with or administering Linux environments
Experience delivering software to clients using Agile methodologies, including Scrum or SAFe
Experience designing software in a collaborative, cross-functional team environment to solve complex problems for our clients
Experience using automated software testing frameworks, including PyTest or JUnit
Experience working with version control systems, including GitHub or GitLab
TS/SCI clearance with a polygraph
Bachelor’s degree in Computer Science, Software Engineering, or Computer Engineering

Job Responsibility

Resolve a problem with a complete end-to-end solution
Develop software and systems from vision to production ready
Master new tools and techniques and identify needed system improvements
Help clients overcome their most difficult challenges using the latest architectural approaches, tools, and technologies
Ensure the solution developed by the team considers the current architecture and operating environment, as well as future functionality and enhancements

What we offer

Health, life, disability, financial, and retirement benefits
Paid leave
Professional development
Tuition assistance
Work-life programs
Dependent care
Recognition awards program

UI Full Stack Software Developer

As a full stack developer, you can resolve a problem with a complete end-to-end ...

Location

United States , Fort Meade

Salary:

69400.00 - 158000.00 USD / Year

Booz Allen Hamilton

Expiration Date

Until further notice

Requirements

Experience with version control systems, including Git
Knowledge of modern JavaScript frameworks, including React, Vue.js, or Angular
Knowledge of server-side programming concepts
Knowledge of UI and UX design and creating user-friendly interfaces
Ability to problem solve and learn new technologies quickly, including AI and its applications in software development
Ability to communicate and work effectively in a team environment
TS/SCI clearance with a polygraph
Bachelor's degree in Computer Science or Software Engineering and 3+ years of experience in Software Engineering, or 7+ years of experience in Software Engineering in lieu of a degree

Job Responsibility

Resolve a problem with a complete end-to-end solution
Develop software and systems from vision to production-ready
Use passion to learn new tools and techniques and identify needed system improvements
Help clients overcome their most difficult challenges using the latest architectural approaches, tools, and technologies
Help make sure the solution developed by the team considers the current architecture and operating environment, as well as future functionality and enhancements

What we offer

Health, life, disability, financial, and retirement benefits
Paid leave
Professional development
Tuition assistance
Work-life programs
Dependent care
Recognition awards program

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 Full Stack Software Engineer

We're looking for a Senior Fullstack Software Engineer to join our team, passion...

Location

United States

Salary:

146700.00 - 230300.00 USD / Year

Atlassian

Expiration Date

Until further notice

Requirements

5+ years of industry experience working as a Full Stack Engineer
Bachelor's or Master's degree with a preference for Computer Science degree
Specialization in Javascript (ES6), HTML5, CSS
Experience with modern Javascript frameworks (e.g., React, AngularJS, Vue)
Familiarity with server-side software development in software design, object-oriented programming. (preferred experience with Java, NodeJs)
Experience with modern testing frameworks (e.g., Jest, Cypress, Mocha, Chai)
Familiarity with A/B testing
Good understanding of front-end architecture and data-driven development
Experience building and integrating REST APIs, GraphQL
Experience with SQL and basic data and numerical analysis

Job Responsibility

Guide the technical direction and implementation of large-scale product features
Evaluate trade-offs between correctness, robustness, performance and customer impact to ensure we build the right solution
Collaborate with product, design and engineering to influence product strategy and direction
Ship well-tested, secure, reliable, and maintainable code while keeping our customers best interests in mind
React to how our product is used in the wild, and help to fix bugs and production issues as they occur
Contribute to code reviews, documentation, and complex bug fixes with security, performance and reliability in mind
Mentor and level up the skills of your teammates by sharing your expertise

What we offer

Health and wellbeing resources
Paid volunteer days

Fulltime

Staff/Principal Full Stack Software Engineer

Axon Records is a cloud-based records management system that modernizes how law ...

Location

United States , Boston

Salary:

168750.00 - 270000.00 USD / Year

Axon

Expiration Date

Until further notice

Requirements

8+ years of experience in full stack software engineering
A bachelor’s degree in Computer Science, Engineering, or a related technical field (or equivalent)
Experience building complex and impactful software in a team environment
Experience designing and delivering high-availability, scalable cloud-based systems
You write beautiful, simple, maintainable code for backend microservices
Deep skill in driving technical solutions across multiple teams
Backend service experience in managed languages such as Go, Java, Scala
Frontend experience in Javascript + Typescript, React
Strong experience with database, especially SQL
Interest in helping to set the technical and organizational direction for a growing engineering team across multiple global locations

Job Responsibility

Lead engineering architecture design reviews
Set a high technical bar for the team through code and architecture design reviews
Mentoring engineers
Working across teams with Product, Design, and Engineering to solve some of our biggest technical challenges within our stack for our customers
Improve our Engineering process, including long-term thinking, sprint planning and stand-ups
Building services that adhere to our high bar on availability and latency in this mission-critical space
Working with the latest open source technologies

What we offer

Competitive salary and 401k with employer match
Discretionary paid time off
Paid parental leave for all
Medical, Dental, Vision plans
Fitness Programs
Emotional & Mental Wellness support
Learning & Development programs
Snacks in our offices

Fulltime

Founding Full-Stack Software Engineer – AI for Biopharma

Founding Full-Stack Engineer role at Equator, an AI-native startup building next...

Location

Spain , Barcelona

Salary:

70000.00 EUR / Year

Blu Selection

Expiration Date

Until further notice

Requirements

4–6 years of software engineering experience (mid to senior level)
Strong backend engineering skills with Python
Proficiency in React, Next.js, TypeScript, Node.js
Experience building data-heavy or versioned backend systems
Strong clean-code discipline and architectural thinking
English (Advanced/C1+)
Valid Spain work permit (no sponsorship available)

Job Responsibility

Architect scalable, auditable backend systems (Python, PostgreSQL, modern frameworks)
Build APIs enabling seamless collaboration between humans and AI agents
Develop clean, modular frontend interfaces using React, Next.js, and TypeScript
Implement and maintain data-heavy systems and structured knowledge frameworks
Write clean, precise code and contribute to strong engineering standards
Collaborate closely with founders, designers, and early users to deliver impactful features
Influence product, technical direction, and architectural decisions as a founding engineer

What we offer

Gym membership

Fulltime

Senior Full Stack Engineer

Our company website is the centerpiece of our brand — the public source of truth...

Location

Ireland , Dublin

Salary:

Not provided

Intercom

Expiration Date

Until further notice

Requirements

8+ years of experience in full stack development, with expertise in JavaScript, HTML, and CSS
Expert in front-end frameworks such as React, Next.js, Tailwind
Experience in CMS platforms (such as Contentful and Sanity) and marketing tools (e.g. Google Tag Manager, Marketo)
Experience in CI/CD tools (such as CircleCI) to streamline and automate development workflows
Familiarity with infrastructure as code tools such as Terraform, and cloud platforms like AWS (Vercel, CloudFront, S3, etc.)
Experience with A/B testing and familiarity with analytics tools to drive data-informed design and development decisions
Knowledge of performance optimization techniques and best practices for fast-loading, responsive websites
Experience in writing tests for front-end components, with familiarity in testing frameworks (e.g., Jest, Mocha, Cypress)
Strong problem-solving skills and the ability to work independently and as part of a team
Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience)

Job Responsibility

Design, build, and maintain end-to-end web solutions — from modern UIs to backend services, APIs, and infrastructure
Collaborate with design, brand, marketing, and content teams to deliver seamless, performant experiences across web and mobile
Develop backend logic and APIs, manage data flows, and implement systems that integrate with third-party platforms
Optimize website performance by applying best practices in front-end development, including lazy loading, and efficient asset management
Set up and manage infrastructure using tools like Vercel, AWS, Cloudfront, Terraform, and CI/CD pipelines (e.g., CircleCI)
Implement and maintain web analytics, and support A/B testing for data-driven decisions
Stay current with emerging technologies and trends to continually improve our development processes and user experience
Be comfortable writing backend software. We look for engineers to be able to unblock themselves end to end
Build using the best tools in the industry. We invest heavily in AI-powered developer tools that remove friction and help you focus on solving meaningful problems

What we offer

Competitive salary and equity in a fast-growing start-up
We serve lunch every weekday, plus a variety of snack foods and a fully stocked kitchen
Regular compensation reviews - we reward great work!
Pension scheme & match up to 4%
Peace of mind with life assurance, as well as comprehensive health and dental insurance for you and your dependents
Flexible paid time off policy
Paid maternity leave, as well as 6 weeks paternity leave for fathers, to let you spend valuable time with your loved ones
If you’re cycling, we’ve got you covered on the Cycle-to-Work Scheme. With secure bike storage too
MacBooks are our standard, but we also offer Windows for certain roles when needed

Fulltime

Software Engineer (Full Stack)

YC Work at a Startup

Location:
United Kingdom , London

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
January 07, 2026

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