Senior Backend Software Engineer - Core Domain Job at Satispay (Milan)

Senior Software Engineer

As a Senior Software Engineer on the Developer Experience team within the Platfo...

Location

United States , Denver; San Francisco

Salary:

Not provided

Checkr

Expiration Date

Until further notice

Requirements

Solid grasp of CS fundamentals (data structures, algorithms, databases, REST APIs)
5+ years of backend development experience
proficient in Ruby (preferred), Golang, Python, or similar
passion for enhancing developer experience (DevEx) and optimizing tooling
strong sense of ownership and proactive attitude
thrives on collaboration, mentorship, and knowledge sharing
skilled in aligning diverse groups toward a shared vision
experience in system architecture, domain modeling, and object-oriented design
proven track record of writing clean, tested, and concise code

Job Responsibility

Design, build, and maintain core software tools and libraries used by Checkr’s engineering teams, ensuring a seamless developer experience, including CI/CD processes
collaborate in defining and implementing golden paths for service building, including the development of essential components that support these paths
participate in architectural discussions with cross-functional teams to align on and drive engineering best practices
provide feedback and consultation to enhance development workflows and ensure the reliability and performance of our systems
communicate complex technical information and advocate for developer experience initiatives to stakeholders at various levels
manage small to medium-sized projects with limited guidance, potentially involving cross-functional collaboration
provide actionable feedback and mentor less experienced team members to foster a collaborative and supportive team environment

What we offer

A fast-paced and collaborative environment
learning and development allowance
competitive cash and equity compensation
100% medical, dental, and vision coverage
up to $25K reimbursement for fertility, adoption, and parental planning services
flexible PTO policy
monthly wellness stipend, home office stipend, and commuter stipend
in-office perks including lunch four times a week, commuter stipend, and an abundance of snacks and beverages

Fulltime

Senior Software Engineer (JVM/Kotlin)

Senior Backend Engineer in the Policies team, leading the architectural transfor...

Location

Poland , Warsaw

Salary:

Not provided

hyperexponential

Expiration Date

Until further notice

Requirements

Architected and delivered complex backend systems with proven experience leading technical initiatives in Kotlin or other JVM languages, ideally with hands-on knowledge of Spring, Hibernate, or similar enterprise frameworks
Led architectural transformation projects with demonstrable success modernising legacy systems, implementing Domain-Driven Design, or breaking down monoliths into maintainable, modular architectures
Influenced technical strategy across teams by driving architecture decisions, establishing coding standards, and mentoring other engineers in best practices that improved system quality and development velocity
Built business-critical systems that handled complex domain logic and data integrity requirements, ideally in industries like finance, insurance, or other domains where system reliability directly impacts business outcomes
Collaborated effectively with product teams to deliver features that customers actually use, with evidence of translating business requirements into technical solutions that drive measurable impact
Demonstrated senior-level ownership by taking responsibility for system reliability, participating in on-call rotations, and building the operational practices that keep production systems running smoothly

Job Responsibility

Lead architectural modernisation of core business systems, driving the transition from monolith to modular architecture using Domain-Driven Design principles that enable faster development and better system maintainability
Design and deliver complex business logic in Kotlin, Spring, and Hibernate, building robust systems that handle intricate insurance domain models and maintain data integrity for billions in premiums
Shape technical strategy and standards across the team and broader engineering organisation, driving decisions around system design, code quality, and architectural patterns that other teams will follow
Collaborate with product stakeholders to translate complex business requirements into elegant technical solutions, working directly with product managers, designers, and sometimes customers to ensure we're solving the right problems
Mentor and influence engineering culture by establishing coding standards, leading technical discussions, and helping other engineers grow their architectural thinking and technical skills
Drive operational excellence through participation in on-call rotations and building systems that maintain high availability for our mission-critical platform used by enterprise customers worldwide

What we offer

Share Options at a highly successful Series B company
25 days of non-working + 14 Polish bank holidays (B2B) / 26 days of holiday + 14 Polish bank holidays (UoP)
£5,000 budget for Learning & Development
Mental Health Support and Therapy via Spectrum Life
Optional for you: access to Healthcare package provided by Luxmed + Multisport (fully funded by yourself as B2B Contractor)
Top-spec laptop (MacOS or Windows)
Company pension (UoP)
10 days company sick pay at 100% salary, thereafter in line with labour law (UoP)
Monthly wellbeing allowance via Juno (UoP)
Healthcare package provided by Luxmed (UoP)

Fulltime

Staff Software Engineer

We are seeking an exceptionally talented and HANDS-ON STAFF BACKEND SOFTWARE ENG...

Location

United States , Boston

Salary:

134900.00 - 197900.00 USD / Year

SimpliSafe

Expiration Date

Until further notice

Requirements

Extensive professional software engineering experience, with significant time spent leading projects and driving technical direction at a Senior or Staff level
Mastery in designing, building, and operating distributed, high-volume backend systems and REST/gRPC APIs
Proficiency in at least one major programming language (e.g., JavaScript/TypeScript, Rust, Java, Go, Python, C#) with the adaptability to work with multiple languages
Proven ability to architect solutions using modern patterns, including event-driven architectures, domain-driven design, and containerization (Docker, Kubernetes)
Expert knowledge of cloud platforms (e.g., AWS, GCP, Azure) and proficiency in operational tools for monitoring, logging, and CI/CD
Exceptional communication, documentation, and presentation skills, with a proven track record of influencing technical decisions across organizational boundaries
Familiarity with Agile methodologies (Scrum or Kanban) and DevOps principles

Job Responsibility

Own the design, review, and implementation of complex, large-scale, and highly available backend services and microservices
Serve as an active individual contributor, writing high-quality, maintainable code and tackling the most challenging technical problems
Define and drive improvements in performance, scalability, monitoring, and operational excellence, ensuring our systems meet demanding SLOs/SLIs
Work closely with Engineering Directors/Sr. Managers and Product Managers to define the long-term technical roadmap, identifying strategic investments in core infrastructure and managing technical debt
Act as the lead technical mentor and coach for multiple engineers, defining best practices, conducting rigorous code and design reviews, and raising the overall technical bar across the entire backend organization
Lead technical collaboration and coordination across different teams, resolving major technical blockers, and standardizing shared services and technologies
Take on increasing responsibilities related to process and project leadership, including driving quarterly planning, leading post-mortems, and starting to formally participate in candidate interviewing and onboarding
As part of the growth plan, participate in management activities, such as leading team retrospectives, providing structured peer feedback for performance reviews, and one-on-ones

What we offer

A mission- and values-driven culture and a safe, inclusive environment where you can build, grow and thrive
A comprehensive total rewards package that supports your wellness and provides security for SimpliSafers and their families
Free SimpliSafe system and professional monitoring for your home
Employee Resource Groups (ERGs) that bring people together, give opportunities to network, mentor and develop, and advocate for change
Participation in our annual bonus program, equity, and other forms of compensation, in addition to a full range of medical, retirement, and lifestyle benefits

Fulltime

Lead / Principal Software Engineer

We’re hiring Lead and Principal Software Engineers to build the next generation ...

Location

Australia , Sydney

Salary:

Not provided

Blume Global

Expiration Date

Until further notice

Requirements

10+ years building scalable, fault-tolerant systems and enterprise software
Strong experience with backend architecture, platform modernization, and CI/CD
Proficiency in C#, Java, Python, SQL, and JavaScript
Experience with cloud infrastructure (AWS, Kinesis, Lambda) and DevOps tools (Docker, Kubernetes, Jenkins)
Proven ability to lead technical decisions, mentor engineers, and improve team productivity
Strong experience integrating and evaluating AI tools like GitHub Copilot and AIOps in real-world engineering workflows
Strong communication across product, compliance, and engineering teams
Track record of aligning technical work with business outcomes and customer value

Job Responsibility

Build the next generation of our platforms
Work on high-scale systems that process billions of transactions
Modernize core infrastructure
Drive AI initiatives to improve performance and reliability
Set technical direction
Mentor senior engineers
Shape architecture across multiple domains

What we offer

Competitive Package + Equity
Find the team/project that fits you best
Hybrid and Flexible Work
Continuous Learning and Growth
Access learning platforms (Coursera, Pluralsight, LinkedIn Learning, WiseTech Academy), mentorship, and development opportunities
Top-Tier Hardware
Onsite Meals and Snacks

Senior Manager, Software Engineering - Core Pricing

Lead the Core Pricing team, which is at the heart of Upstart’s financial infrast...

Location

United States

Salary:

195000.00 - 270000.00 USD / Year

Upstart

Expiration Date

Until further notice

Requirements

10–15 years of software engineering experience
4–7 years managing high-performing engineering teams
Demonstrated ownership of systems with strict reliability, latency, and correctness constraints
Domain experience in pricing, fintech, lending, payments, marketplaces, or real-time decisioning systems
Strong system design and architectural skills
Deep experience leading backend and distributed systems in production environments
Proven success leading cross-functional, multi-quarter initiatives in complex, fast-paced environments
Excellent communication skills
Strong product intuition and business judgment

Job Responsibility

Lead, coach, and grow a team of backend engineers and an engineering manager
Own team execution and delivery across multiple quarters
Guide technical strategy across legacy and next-generation pricing systems
Ensure changes to pricing systems are production-safe, observable, and rigorously validated
Collaborate cross-functionally with Product, Risk, Servicing, Analytics, and external partners
Use key metrics to align engineering priorities with borrower impact and business objectives

What we offer

Competitive compensation, including base pay, bonus opportunities, and annual equity grants that vest quarterly
Generous 401(k) plan with Upstart matching $2 for every $1 contributed, up to $15,000 per year
Employee Stock Purchase Plan (ESPP) with discounted stock purchase options
Affordable medical, dental, and vision coverage
Health Savings Account contributions
Income protection benefits, including company-paid Basic Life, AD&D, and Short- and Long-Term Disability coverage
Paid time off, sick and safe time, and company holidays
Paid family and parental leave
Family-centered benefits through Carrot and Cleo
Employee Assistance Program (EAP)

Fulltime

Staff Software Engineer, (Backend) Uber AI Solutions

At Uber, our mission is to be the platform of choice for flexible earning opport...

Location

United States , San Francisco, California; Sunnyvale, California

Salary:

232000.00 - 258000.00 USD / Year

Uber

Expiration Date

Until further notice

Requirements

Bachelor’s (or Master’s) degree in Computer Science, Engineering or related discipline (or equivalent experience)
Expert in at least one major backend or infrastructure technology (languages, frameworks, distributed systems, data pipelines) and comfortable influencing architecture across teams
Strong record of mentoring and developing engineers, setting technical standards, and driving impact beyond a single team
Excellent communication and collaboration skills
able to engage with multiple teams, stakeholders, and articulate vision and trade-offs
Experience participating in hiring and helping build out engineering teams or capability
8+ years of professional software engineering experience, with substantial experience designing, building, and operating large-scale systems across multiple teams
Deep understanding of ML Ops ecosystems, LLM or ML model lifecycle management, and large-scale data processing frameworks (e.g., Kubeflow, Airflow, Ray, Spark)
Proven experience architecting systems for data labeling, translation, or human-in-the-loop workflows supporting high-volume ML applications
Strong familiarity with GenAI, Physical AI and LLM infrastructure model hosting, fine-tuning, evaluation, and integration into production services

Job Responsibility

Architect and evolve core systems that span multiple teams, ensuring scalability, performance, and long-term maintainability of critical platform services
Provide technical leadership across teams, driving alignment on design patterns, service interfaces, and shared infrastructure investments
Mentor and develop senior engineers, elevating technical depth, decision-making, and design rigor across the broader group
Champion the adoption of AI-assisted development tools and modern engineering practices to improve code quality, reliability, and delivery speed across teams
Influence hiring and talent development, helping shape team composition and maintaining a high engineering bar across multiple teams

What we offer

Eligible to participate in Uber's bonus program
May be offered an equity award & other types of comp
Eligible to participate in a 401(k) plan
Eligible for various benefits

Fulltime

Senior Backend Engineer – Rust

As a Senior Engineer - Rust, you will be a vital member of our engineering team,...

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
Minimum of 5+ years of software engineering experience, with significant hands-on experience in Rust development
Proven experience designing, building, and maintaining libraries, SDKs, or core system components, preferably in Rust, C++, or similar systems programming languages
Demonstrable experience delivering code that meets high-performance, high-concurrency, and low-footprint requirements
Deep understanding of Rust's core concepts: ownership, borrowing, lifetimes, traits, generics, error handling, and asynchronous programming (async/await)
Experience with performance profiling tools and techniques for Rust applications
Strong experience with API design principles and creating developer-friendly interfaces
Solid understanding of testing methodologies and experience with Rust testing frameworks
Familiarity with common data structures, algorithms, and their performance characteristics
Experience with Git and CI/CD practices

Job Responsibility

Design, implement, and maintain high-quality, reusable, and efficient Rust code for the core cybersecurity library
Develop clear, well-documented, and ergonomic APIs for internal teams to consume the library
Ensure the library is architected for testability, maintainability, and extensibility
Focus on achieving high performance and low latency in all library components
Profile and optimize code for CPU usage, memory footprint, and concurrency
Implement efficient data structures and algorithms suitable for cybersecurity processing tasks
Leverage Rust's ownership, borrowing, and concurrency features (e.g., async/await, Send/Sync traits) to build highly concurrent and thread-safe library components
Ensure all code adheres to Rust's memory safety guarantees, minimizing vulnerabilities
Write comprehensive unit, integration, and potentially property-based tests to ensure library correctness and robustness
Participate in code reviews, providing and receiving constructive feedback to maintain high code quality

What we offer

Meaningful work & impact
Competitive rewards
Growth & well-being
People & workspace
Young & dynamic environment

Staff Software Engineer, Core Platform

As a Staff Software Engineer on the Core Platform team, you'll drive technical s...

Location

United States

Salary:

238000.00 - 280000.00 USD / Year

Vanta

Expiration Date

Until further notice

Requirements

Deep industry experience with expertise in platform engineering, infrastructure systems, or backend architecture
Proven ability to lead complex technical initiatives spanning multiple quarters and teams in fast-paced, dynamic environments
Mastery in system design, distributed systems, and cloud infrastructure (AWS), with demonstrated experience building and scaling platform systems that serve internal engineering teams
Experience with containerized deployments (e.g. ECS, Fargate), database management (MongoDB preferred), security hardening practices and thinking in terms of platform level abstractions and UX for developers, not just underlying infrastructure
Excellent communication and leadership skills with the ability to influence technical decisions across the organization, consistently upleveling teams and presenting effectively to both technical and non-technical audiences
Strong technical foundation in modern backend technologies

Job Responsibility

Lead strategic technical initiatives across Core Platform's infrastructure and security domains, setting the technical direction for foundational systems that enable all of Vanta's engineering teams to ship quickly and securely
Design and evolve internal platforms and paved roads that abstract away infrastructure and security complexity, enabling product teams to ship independently and safely
Drive multi-quarter platform projects that improve infrastructure reliability, and security posture across the organization, including AWS services (ECS, Fargate, Lambda), MongoDB optimization, and event-driven architecture
Build platform capabilities for enterprise and regulated environments, including FedRAMP-aligned infrastructure, secure environments, and compliance-ready deployment patterns
Partner closely with product engineering, security, and leadership to understand developer needs, identify friction, and translate them into scalable platform solutions
Champion engineering excellence by mentoring senior engineers, influencing architecture across teams, and institutionalizing best practices for platform reliability, operability, and developer experience

What we offer

Offers Equity
medical benefits
401(k) plan
other company perk programs
Comprehensive medical, dental, and vision coverage, with 100% of employee-only benefit premiums covered for most medical plans
16 weeks fully-paid Parental Leave for all new parents
Health & wellness stipend
Remote workspace, internet, and cellphone stipend
Commuter benefits for team members who report to the SF and NYC office
Family planning benefits

Fulltime

Senior Backend Software Engineer - Core Domain

Satispay

Location:
Italy , Milan

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
March 22, 2026

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