Senior Software Engineer, Tech Lead Job at YC Work at a Startup (London)

Senior Backend Engineer / Tech Lead (Data Management)

As a Senior Backend Software Engineer at Aignostics, you work hand in hand with ...

Location

Germany , Berlin

Salary:

Not provided

Aignostics

Expiration Date

Until further notice

Requirements

Bachelor and/or Master in a relevant field or extensive work experience
6+ years of software development experience in a data intensive environment
Experience leading a technical initiative ideally with cross-team impact
Strong background in software development ideally with Python
Experience with cloud providers (GCP, AWS) and their services
Experience with container orchestration (preferable Kubernetes)
Experience with database systems
Familiar with CI/CD pipelines, code reviews and other standards to keep up code quality
Driven self-starter, well-organized, excellent communication skills and a strong team player

Job Responsibility

Design and develop services and core libraries that enable our SaaS platform
Ensure reliable, high throughput access to our data for machine learning
Maintain and expand our data management infrastructure
Lead initiatives, evaluate new technologies and their integration into our current codebase
Eagerness to take ownership - from inception to completion - without losing focus on the business context
Communicate closely with our frontend and machine learning teams
Perform code reviews, considering readability, design and performance

What we offer

Learning & Development yearly budget of 1,000€ (plus 2 L&D days)
Language classes and internal development programs
Mentoring program
Flexible working hours and teleworking policy
30 paid vacations days per year
Family & pet friendly and support flexible parental leave options
Subsidized membership of your choice among public transport, sports and well-being
Social gatherings, lunches, and off-site events
Optional company pension scheme

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, Product Engineering

Everlaw is looking for a Senior Software Engineer with experience building and s...

Location

United States , Oakland

Salary:

164000.00 - 239000.00 USD / Year

Everlaw

Expiration Date

Until further notice

Requirements

BS or MS in Computer Science, or equivalent coursework
Experience and proficiency in coding in a language such as C, C++, C#, Java, Python, Javascript, Go or Rust
Good knowledge of algorithms and fundamental computer science concepts, relational databases, API design, and building user interfaces
At least 5 years of experience building distributed systems in the cloud with service based architecture, using frontend frameworks to create rich, deep, web applications, and experience with the best practices to test, maintain, and launch cloud based software
At least 1 year of experience leading or coordinating multi-developer efforts, including planning and technical breakdown

Job Responsibility

Build customer-facing features that represent the core of our product, including document and image/multi-modal processing, collaborative review tools, organization, translation tools, search, review, and more
Use AI technologies to find the evidence rapidly such as document classification, predictive coding, transfer learning and LLMs
Collaborate with one or more of the Product, Design, Engineering Operations, Security Engineering, and DevOps teams to build out and implement new features that are used in our production environments
Help with scaling our system to larger datasets with hundreds of millions of documents
Provide Technical Mentorship to other engineers by both sharing your technical knowledge and becoming an expert in an area of our code base
Be a Code Reviewer by reviewing code developed by others using your knowledge of programming languages, design patterns, and best practices
Fix defects in our product by triaging product or system issues and writing code to debug, track and resolve these issues
Provide on-call support for the product by answering questions from customers, triaging defects and exceptions, and carrying the pager
Contribute to documentation for internal engineering consumption or for external the Everlaw platform
Do technical interviews to help us recruit engineers and grow the team

What we offer

Equity program
401(k) retirement plan with company matching
Health, dental, and vision
Flexible Spending Accounts for health and dependent care expenses
Paid parental leave and approximately 10 days (80 hours) per year of sick leave
Seventeen paid vacation days plus 11 federal holidays
Membership to Modern Health to help employees prioritize mental health and wellness
Annual allocation for Learning & Development opportunities and applicable professional membership dues
Company-sponsored life and disability insurance
Work in Downtown Oakland, just steps from the BART line and dozens of restaurants

Fulltime

Senior Backend Engineer - Tech Lead

We're looking for an experienced and motivated Senior Backend Engineer - Tech Le...

Location

Israel , Herzliya

Salary:

Not provided

Hewlett Packard Enterprise

Expiration Date

Until further notice

Requirements

7+ years of experience in backend software development
Strong background in SaaS architecture and cloud-native technologies
Proficiency in programming languages: Go, .NET, TypeScript and Node.js
Experience with CI/CD pipelines, microservices, and containerization (Docker, Kubernetes)
Ability to take ownership of features from design through implementation and delivery
Excellent communication skills and the ability to work collaboratively across functions
Experience with monitoring, observability, and operational excellence in production environments
Experience mentoring others will be considered an advantage

Job Responsibility

Drive the design, development, and delivery of scalable SaaS solutions with high availability and performance
Develop and maintain backend services, fostering a culture of ownership, collaboration, and continuous improvement
Ensure adherence to software development best practices, including code reviews, testing, documentation and knowledge sharing
Contribute to architectural decisions and long-term technical vision
Execute technical tasks for key initiatives, ensuring alignment with product goals
Collaborate with POs, DevOps, QA, Security and other cross-functional teams to deliver features on time and with high quality
Mentor junior developers by guiding their technical growth, CRs and supporting them in conducting research and implementing high-quality solutions
Analyze and troubleshoot customer escalations, identify root causes, and drive timely, effective solutions to ensure product reliability and customer satisfaction

What we offer

Health & Wellbeing
Personal & Professional Development
Unconditional Inclusion

Fulltime

Senior Cloud Engineer - Tech Lead

We're looking for an experienced and motivated Senior Cloud Engineer - Tech Lead...

Location

Israel , Herzliya

Salary:

Not provided

Hewlett Packard Enterprise

Expiration Date

Until further notice

Requirements

7+ years of experience in backend software development
Strong background in SaaS architecture and cloud-native technologies
Proficiency in programming languages: Go, .NET, TypeScript and Node.js
Experience with CI/CD pipelines, microservices, and containerization (Docker, Kubernetes)
Ability to take ownership of features from design through implementation and delivery
Excellent communication skills and the ability to work collaboratively across functions
Experience with monitoring, observability, and operational excellence in production environments
Experience mentoring others will be considered an advantage

Job Responsibility

Drive the design, development, and delivery of scalable SaaS solutions with high availability and performance
Develop and maintain backend services, fostering a culture of ownership, collaboration, and continuous improvement
Ensure adherence to software development best practices, including code reviews, testing, documentation and knowledge sharing
Contribute to architectural decisions and long-term technical vision
Execute technical tasks for key initiatives, ensuring alignment with product goals
Collaborate with POs, DevOps, QA, Security and other cross-functional teams to deliver features on time and with high quality
Mentor junior developers by guiding their technical growth, CRs and supporting them in conducting research and implementing high-quality solutions
Analyze and troubleshoot customer escalations, identify root causes, and drive timely, effective solutions to ensure product reliability and customer satisfaction

What we offer

Comprehensive suite supporting physical, financial and emotional wellbeing
Career development programs
Inclusive work environment

Fulltime

Senior Principal Software Engineer

The Senior Principal Software Engineer role involves tackling complex problems, ...

Location

United States , San Francisco

Salary:

198300.00 - 318600.00 USD / Year

Atlassian

Expiration Date

Until further notice

Requirements

Bachelor’s degree in Computer Science or equivalent
10+ years of experience working as senior Software Engineer
5+ years of experience acting as Technical Lead for a team of engineers
Experience in supporting compliance environments related to FedRAMP, DoD, or mature compliance offerings at large scale tech companies

Job Responsibility

Regularly tackle the largest and most complex problems on the team, from technical design to launch
Partner across engineering teams to take on company-wide initiatives spanning multiple projects
Routinely tackle complex architecture challenges and apply architectural standards and start using them on new projects
Work across senior engineering and product leaders to build strategy and design solutions to earn customers trust and business
Lead a large team of Principals to tackle some of the broadest impacting and technically complex problems with a platform mindset

What we offer

Health coverage
paid volunteer days
wellness resources

Fulltime

Senior Backend Software Engineer

Atlassian is looking for Engineers to join one of our Sydney engineering teams (...

Location

Australia , Sydney

Salary:

Not provided

Atlassian

Expiration Date

Until further notice

Requirements

Expert-level experience with one or more prominent languages such as Java, Kotlin, Golang, Python, C#, C/C++, or Ruby is required
Highly-trusted knowledge in at least one domain and working knowledge in multiple tech domains
Passion for collaborating with and mentoring junior members of the team
Considers the customer impact when making technical decisions
A real appetite for learning and growing, both as an individual and teammate

Job Responsibility

Drive large, complex projects autonomously, from technical design to launch
Determine plans-of-attack on large projects
Tackle complex architecture challenges, apply architectural standards and start using them on new projects
Lead code reviews & documentation as well as take on complex bug fixes, especially on high-risk problems
Be an example for thorough, meaningful code reviews
Partner across engineering teams to tackle company-wide initiatives spanning multiple projects
Transfer your depth of knowledge from your current language to excel as a Java developer
Mentor more junior members

What we offer

Health and wellbeing resources
Paid volunteer days

Senior Manager, Software Engineering (Orchestration Services)

The Data and Storage Services team is responsible for handling all of Affirm’s D...

Location

United States

Salary:

232000.00 - 310000.00 USD / Year

Affirm

Expiration Date

Until further notice

Requirements

Solid leadership and interpersonal skills
10+ years of experience in managing multiple diverse and inclusive teams and delivering large cross-functional technical programs
Proven track record in stakeholder management, ownership, and successful delivery
Expertise in managing large-scale, geographically distributed compute and data processing systems, including data lake solutions and Workflow Orchestration frameworks
Expertise in scaling frameworks like Spark, Flink and, Kafka on Kubernetes and cloud providers like AWS, leveraging storage systems such as AWS S3 and Apache Iceberg
Capable of mentorship, cross-functional project execution, and individual contribution
Strong interpersonal, written, and verbal communication skills with a growth mindset
Experience in the data infrastructure domain and a passion for leading technical teams and contributing to Open Source solutions
Bachelor’s degree in Computer Science, related technical field, or equivalent practical experience

Job Responsibility

Lead a team of engineers and managers with empathy while fostering a high-performance, ownership-driven & inclusive culture to develop frameworks, systems, and tools for new Affirm products
Oversee teams managing storage services including relational, key-value, and analytics storage infrastructure and tools at scale
Understand and drive business and engineering metrics, promoting a culture of reliability, security, and productivity
Collaborate with tech leads, program managers, and other engineering managers on security, tools, architecture, planning, and delivery of multiple concurrent projects
Work across the engineering organization and with internal and external partners
Provide leadership and growth opportunities to team members, mentor engineers, recruit, and represent Affirm hiring brands
Lead technical decisions, projects, and roadmaps within the Batch and Streaming teams, shaping Affirm’s strategy for managing and serving orchestration workloads
Collaborate with peers, leadership, and stakeholders across platform engineering and product engineering organizations
In collaboration with tech leads, develop a multi year roadmap to design and implement frameworks, services, and tools for new Affirm products and business needs
Guide, tutor, and aid in the professional growth of junior and senior engineers within the team

What we offer

Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents
Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses
Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge
ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount

Fulltime

Senior Software Engineer, Tech Lead

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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