April 28, 2026
Senior Full-Stack Engineer
Senior • On-site
12,083 - 15,083 USD/yr
New York City, NY
About Monstro
Monstro is the operating system for governed financial intelligence. We build governance and intelligence infrastructure that enables artificial intelligence to operate safely, explainably, and at institutional scale.
We exist because the level of financial guidance historically available to a small group should be accessible to many more people. By combining AI with deep institutional infrastructure, we help financial institutions deliver more personalized, responsible, and life-changing financial support to millions of individuals.
We're building mission-critical systems in a highly regulated domain, and we care deeply about doing it right. If you're motivated by meaningful problems, high standards, and shaping infrastructure that improves financial outcomes, you'll feel at home here.
About the Role
Monstro is hiring a Senior Full Stack Engineer with a backend focus to help build and scale the client-facing systems that power our platform. This role owns critical backend services that handle sensitive financial data, where reliability, security, and performance are essential.
What You'll Do
Backend Engineering
- Design, build, and maintain backend services that power Monstro's consumer experience
- Work across our stack (Python, Node.js, and Go), selecting the right tool for each problem
- Build robust APIs serving mobile and web clients while integrating with financial institutions and third-party services
System Architecture & Scalability
- Architect systems that scale gracefully as our user base grows
- Identify bottlenecks and implement caching strategies (Redis, CDN, application-level caching)
- Optimize query performance and tune container-based applications
- Design for resilience with failover strategies, retry logic, and graceful degradation
Infrastructure & DevOps
- Containerize and orchestrate services using Docker and Kubernetes
- Collaborate with platform teams on infrastructure decisions
- Contribute to CI/CD pipelines and ensure smooth, reliable deployments
- Understand and work across the full SDLC, from local development through production observability
Data & Integrations
- Work with relational and NoSQL databases, partnering with data engineers on schema and data models
- Build integrations with banking systems, payment processors, and financial data providers
- Implement event-driven architectures and message queues where appropriate
Security, Quality & Team Collaboration
- Build systems with security as a first-class concern, including authentication, authorization, encryption, and audit logging
- Ensure systems meet fintech regulatory and compliance requirements
- Guide and develop junior and mid-level engineers through code reviews, pairing sessions, and technical coaching
- Partner closely with frontend engineers, product managers, and designers to deliver cohesive features
- Participate in architectural discussions and incident response, contributing to a culture of continuous learning and technical excellence
What Success Looks Like
- Backend systems reliably support a growing consumer user base with minimal incidents or regressions
- Sensitive financial data is handled securely, correctly, and in compliance with regulatory requirements
- APIs and services are well-designed, performant, and easy for mobile and web clients to consume
- Infrastructure and deployment processes enable safe, frequent releases
- Junior and mid-level engineers are unblocked, supported, and improving through mentorship and collaboration
What We're Looking For
- 7+ years of professional software engineering experience
- Strong proficiency in at least two of the following: Python, Node.js, Go
- Hands-on experience with Docker and Kubernetes in production environments
- Solid understanding of the full SDLC and modern development toolchains
- Experience scaling and performance-tuning container-based applications
- Strong understanding of caching patterns and strategies
- Familiarity with API design, microservices patterns, and distributed systems
- Experience with test-driven development and test automation
- Familiarity with cloud platforms such as AWS, GCP, or Azure
- Clear communicator who takes ownership, moves with urgency, and is passionate about building high-quality software
Why Monstro?
- Ownership & Impact: Shape the future of AI-powered finance—building a category-defining product used by consumers and institutions around the world.
- Elite Team: Join a team with leadership that has a track record of scaling companies from early stage to major exits.
- Principles-Driven Culture: Work in a culture that values speed, ownership, and impact—what most companies achieve in 90 days, we do in 45.
- Comprehensive Compensation Package: Competitive salary, equity, and robust benefits package, including paid health, vision, dental, and disability coverage.
Note: This role will be hybrid in office for those in the NYC metro or remote for those in the Denver metro area (but with the expectation of periodic travel to our NYC office)
Base Compensation Range (New York City): $164,000 - $206,000
Base Compensation Range (Denver Metro): $145,000 - $181,000
*The posted range reflects the base salary for this role across the market ranges for each location. Final compensation will depend on a variety of factors, including experience, skills, internal leveling, and market conditions, and will be offered within the stated range in accordance with applicable pay transparency laws.
Ready to Build With Us?
If you're excited to contribute to a high-bar team building something meaningful, we love to hear from you!
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You'll have meaningful ownership from day one, work directly with company leadership, and help build a visual identity that evolves alongside the company. About the Role We're looking for a Brand Designer who thrives in fast-moving startup environments and enjoys wearing multiple hats. This is a hands-on role for someone who loves building brands from the ground up, can move comfortably between strategy and execution, and enjoys bringing consistency across every customer touchpoint. A key part of this role is taking Monstro's brand into the US and Middle East markets — not by replicating what's been done before, but by challenging the status quo to find the boldest, most authentic representation of who we are in these new markets. You'll work across brand identity, web, marketing, sales enablement, recruiting, events, and digital experiences. One day you might be refining our website, the next designing investor materials, building launch assets for a product release, creating trade show graphics, or developing a new set of brand guidelines. This is an opportunity to become a true creative owner within an early-stage AI company where your work will be seen — and used — every day across the business. What You'll Own Brand Identity & Creative Systems - Help evolve and scale Monstro's visual identity across every touchpoint, with a focus on expanding our presence into the US and Middle East - Develop and maintain brand guidelines, templates, and design systems that ensure consistency as we grow across markets - Create thoughtful visual solutions that communicate trust, clarity, and technical excellence — adapted for cultural context, not just translated - Challenge conventional approaches to find the most compelling representation of our brand in each new market Digital & Web - Design and continuously improve our website and digital presence - Partner with Product and Engineering to create polished digital experiences that align with our brand - Support light UI and visual design work where appropriate Marketing & Go-to-Market - Design campaign assets across digital, email, social media, and product launches - Create compelling visuals that help tell Monstro's story across multiple channels and markets - Produce quick-turn creative assets while maintaining a consistently high quality bar Sales, Recruiting & Corporate Communications - Design presentations, investor materials, sales collateral, one-pagers, and recruiting assets - Support executive communications with polished, high-impact visual materials - Help elevate every external interaction with a consistent and professional brand experience Events & Physical Experiences - Design conference booths, signage, printed collateral, merchandise, and other physical brand materials - Ensure our in-person presence reflects the same quality and consistency as our digital experience, including at regional events in the US and Middle East What We're Looking For - 2.5+ years of experience across Brand, Visual, Graphic, UX/UI, Product, or Interactive Design, ideally within a startup or high-growth technology company - A strong portfolio demonstrating range across brand identity, digital product, and campaign or marketing design - Proven ability to translate brand strategy into compelling visual systems — from brand guidelines to UI components to interactive experiences - Experience designing for global or multi-market audiences, with an understanding of how cultural context shapes visual language, tone, and user experience - A track record of challenging convention rather than defaulting to industry norms - Comfort working in ambiguity and shaping direction from the ground up - Strong collaboration skills, with experience partnering closely with product, marketing, and leadership to align design decisions with business goals - Excellent craft and attention to detail across typography, layout, color, and motion Why Monstro? - Ownership & Impact: Shape the future of AI-powered finance—building a category-defining product used by consumers and institutions around the world. - Experienced Team: Join a team with leadership that has a track record of scaling companies from early stage to major exits. - Principles-Driven Culture: Work in a culture that values speed, ownership, and impact. - Comprehensive Compensation Package: Competitive salary, equity, and robust benefits package, including paid health, vision, dental, and disability coverage. Base Compensation Range for New York City: $110,000 - $150,000 A Note on Interviewing: We sometimes use AI note-takers to help us transcribe interview notes, so we can be more present in your interview. Ready to Build With Us? If you're excited to contribute to a high-bar team building something meaningful, we love to hear from you!
Technology

Monstro
Senior People (HR) Operations Manager
Senior
On-site
New York, NY
141,000 - 171,000 USD/yr
🏢 Summary: Senior People Operations Manager role focused on building and managing HR operations, compliance, payroll, employee engagement, and people systems for a fast-growing AI-driven BankingTech company. The position involves hands-on ownership of the US People function, multi-state compliance, HR infrastructure through Rippling, and performance and culture initiatives in a regulated environment. 🗂️ Requirements: 5–8 years of HR experience, Experience in fast-paced, high-growth, or tech environments, Strong knowledge of payroll, compliance, benefits, and HR systems, Experience working across multiple US states, Hands-on experience with Rippling, Experience with AI-powered People tools, Ability to manage employee relations in line with US employment legislation, Bachelor's degree or equivalent experience 📃 Skills: Rippling, Payroll, Compliance, HRIS, Benefits, AI, Benchmarking, Governance 🏢 Description: About Monstro Monstro is the operating system for governed financial intelligence. We build governance and intelligence infrastructure that enables artificial intelligence to operate safely, explainably, and at institutional scale. We exist because the level of financial guidance historically available to a small group should be accessible to many more people. By combining AI with deep institutional infrastructure, we help financial institutions deliver more personalized, responsible, and life-changing financial support to millions of individuals. We're building mission-critical systems in a highly regulated domain, and we care deeply about doing it right. If you're motivated by meaningful problems, high standards, and shaping infrastructure that improves financial outcomes, you'll feel at home here. About the Role This is a hands-on Senior People (HR) Operations Manager role at the heart of a fast-moving BankingTech AI company that's genuinely changing how financial guidance reaches people. You'll be the engine behind our US People function — the person who makes sure the foundations are solid, the processes run smoothly, and employees have a great experience at every stage of their journey with us. We're building our People function the way the best AI Labs do — lean, intentional, and high-impact. That means thoughtful org design, a culture built on trust and performance, and operations that actually work. You'll be central to making that real in the US. You'll work closely with our Global Head of Talent & People Growth and report data/metrics directly to our Executive team. This isn't a strategy-from-a-distance role — you'll be hands-on in the detail, owning the work, and helping build an environment where people do the best work of their careers. No two days look the same. You might be sorting a multi-state payroll query in the morning, onboarding a new engineer in the afternoon, and drafting a policy update before the day is done. If you take real pride in doing People Ops properly — and you believe that getting the fundamentals right is what unlocks a high-performing culture — you'll fit right in here. What You'll Own HR Operations & Compliance - Run and improve the US HR infrastructure via Rippling, serving as the lead for all HR Rippling matters — including implementation and the full cycle of the Rippling People platform - Own and maintain employment documentation, policy frameworks, and compliance processes across all states where we operate - Keep the full employee lifecycle running smoothly and compliantly — from offer letters and onboarding through to off-boarding - Manage and support your People Operations team member People Support - Be the first point of contact for employee queries — benefits, policies, payroll, and everything in between - Handle employee relations matters with good judgment, appropriate care, and in accordance with US and state employment legislation - Make sure employees feel supported and that the basics are always done well — because a high-performing culture starts with trust Employee Engagement & Performance - Help run Performance Collaboration Conversations, goal-setting processes, and feedback programs in close partnership with the Talent & People Growth team - Own the new joiner experience through 30/60/90 data and insight, turning what you learn into meaningful initiatives that improve engagement and set people up to perform from day one - Lead efficiencies and speed using AI tooling to keep people data and systems accurate and up to date, using it to spot trends and inform decisions Culture, People Engagement & Experience - Support the delivery of culture and engagement initiatives that reinforce our values and raise the bar on what it feels like to work here - Help coordinate the development of employees, manager toolkits, and internal communications that equip people to grow and perform at their best Compensation & Governance - Support compensation administration, market benchmarking data pulls, and off-cycle review processes - Maintain pay and HR governance records accurately and in line with company standard operating procedures What We're Looking For - 5–8 years of HR experience, ideally in a fast-paced, high-growth, or tech environment - AI Labs, Foundation Model Companies, Fintech, BankingTech, or regulated industry experience is a strong plus - Strong operational depth in payroll, compliance, benefits, and systems - Experience working across multiple US states - Highly organized with strong attention to detail - Comfortable working in a fast-scaling business - Hands-on experience with modern People platforms, including Rippling and AI-powered People tools - Bachelor's degree or equivalent experience; SHRM-CP or PHR is a plus Why Monstro? - Ownership & Impact: Shape the future of AI-powered finance by building a category-defining product used by consumers and institutions worldwide - Experienced Team: Join leadership with a track record of scaling companies from early stage to major exits - Principles-Driven Culture: Work in a culture that values speed, ownership, and impact - Comprehensive Compensation Package: Competitive salary, equity, and robust benefits package including paid health, vision, dental, and disability coverage Base Compensation Range (New York City): $141,000 - $171,000 Final compensation will depend on experience, skills, internal leveling, and market conditions.
Technology
Allegro
Senior Software Engineer (Java/Kotlin) - Frontend Platform
Senior
Hybrid
Poznan, Poland
18,850 - 25,900 PLN/mo
🏢 Summary: Senior Software Engineer role focused on building and scaling backend platform services that power web and mobile rendering infrastructure. The position involves architecting high-throughput microservices, maintaining platform stability, reducing technical debt, and supporting AI-driven developer tooling. The role offers hybrid work, performance bonuses, and opportunities to work with large-scale distributed systems. 🗂️ Requirements: Expertise in Kotlin, Expertise in Java, Experience with Spring, Experience with PostgreSQL, Experience with Couchbase, Experience with Kubernetes, Experience with Docker, Experience with microservice architectures, Ability to manage high-throughput systems, Backend engineering experience, System stability and SLA management, Mentoring and technical leadership skills 📃 Skills: Kotlin, Java, Spring, PostgreSQL, Couchbase, GCP, Hermes, Kafka, Kubernetes, Docker, TypeScript, React, GitHub, Consul, GitHubActions, LLM 🏢 Description: About the Job At Allegro, we operate at a massive scale where performance, reliability, and developer efficiency are paramount. Within the Frontend Platform area, we design and maintain the critical infrastructure and tools responsible for building and rendering every website and mobile screen across the entire ecosystem. Our internal, CMS-like solutions are utilized company-wide by everyone from engineers building individual components to non-technical content editors launching complex landing pages, campaign sites, and homepage partials. This high-throughput environment demands exceptional complexity management, structural scalability, and out-of-the-box architectural thinking to boost developer productivity and maintain our core services. The Role As a Senior Software Engineer, your primary focus will be the development, maintenance, and architectural evolution of our core frontend platform services. This is a highly impactful role where your work directly ensures the high availability and stability of Allegro's primary web and mobile rendering traffic. You will be at the very center of product delivery, helping the organization scale efficiently while keeping technical debt to a minimum. Key Responsibilities: Architect, develop, and scale core platform services and content management tools. The primary stack is backend-focused (Kotlin/Java, Spring, PostgreSQL, Couchbase, GCP, Hermes (our open source solution on top of Kafka), Kubernetes/Docker), with the opportunity to occasionally touch or collaborate on the frontend side (TypeScript/React). Actively monitor, optimize, and deep-dive into platform systems to ensure maximum stability, safeguard our SLAs, and reduce technical debt. Provide technical foundation and active support for critical business projects, ensuring new features can be deployed smoothly and swiftly. Lead software development initiatives, supervise and mentor other team members, and document software thoroughly. Analyze the needs of our internal users to deliver features that accelerate company-wide development and deliverability. Shape and develop the platform's foundation to support AI-driven tooling, ensuring our services are ready to seamlessly integrate with AI agents and next-generation developer assistants. Important things for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN 18 850 - 25 900 Annual bonus based on your annual performance and company results. Long term discretionary incentive plan based on Allegro.eu shares (restricted stock units). Our team is based in Poznań. We are looking for people who: Demonstrate deep expertise in backend engineering with Kotlin/Java. While the role is heavily backend-focused, any familiarity with frontend ecosystems is a great plus that will help you collaborate seamlessly across the platform. Are excited by the challenge of managing critical, high-throughput microservice architectures where system stability is a top priority. Enjoy working closely with an internal customer base, allowing you to receive rapid feedback on your work and see its immediate organizational impact. Are open to experimenting with cutting-edge efficiency boosters. Our team actively explores integrating AI Agents and LLMs into our internal tooling and workflows to optimize daily operations. What’s in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!
Technology
Allegro
Senior Software Engineer (Java / Kotlin) - Operations Automation
Senior
Hybrid
Poznan, Poland
18,850 - 25,900 PLN/mo
🏢 Summary: Senior Software Engineer role focused on building and scaling backend platform services, low-code infrastructure, and internal development tools in a large-scale distributed environment. The position involves architecting reliable systems using JVM technologies, cloud infrastructure, and messaging platforms while supporting internal teams with secure and scalable solutions. The role also includes technical leadership, mentoring, and collaboration on frontend or AI-driven initiatives when needed. 🗂️ Requirements: Strong experience with Kotlin, Strong experience with Java, Experience with distributed systems, Experience with Kafka, Experience with queuing systems, Experience with PostgreSQL, Knowledge of backend engineering on JVM, Ability to work with cloud platforms, Experience with Kubernetes and Docker, English proficiency at B2 level or higher, Experience leading software development initiatives, Analytical and problem-solving mindset 📃 Skills: Kotlin, Java, Spring, Kafka, PostgreSQL, MongoDB, Azure, GCP, Kubernetes, Docker, TypeScript, React, Python, GitHub, Consul 🏢 Description: About the job At Allegro, we operate at a massive scale where performance, reliability, and developer efficiency are paramount. Within our multi-product platform team, we design and maintain the critical infrastructure, low-code engines, and shared technical solutions used by other engineering teams to build secure and auditable internal tools across the entire ecosystem. Our internal platform solutions are utilized company-wide to streamline data access and simplify admin tool creation. This environment demands exceptional complexity management, structural scalability, and out-of-the-box architectural thinking to eliminate repetitive developer bottlenecks and ensure that our customer support department can operate without disruption. The Role As a Senior Software Engineer, your primary focus will be the development, maintenance, and architectural evolution of our core backend platform services and low-code infrastructure. This is a highly impactful, well-rounded role where you will ensure the high availability, security, and stability of systems that power internal applications company-wide. You will help the organization scale efficiently while keeping technical debt to a minimum. Key Responsibilities: Design & Development: Architect, develop, and scale core platform services, messaging components, and internal development tools. The primary stack is backend-focused ( Kotlin/Java, Spring, Kafka , queuing systems, PostgreSQL , MongoDB , Cloud - Azure/GCP, Kubernetes/Docker), with the opportunity to occasionally collaborate on the frontend (TypeScript/React) or AI-driven services (Python). Stability & Reliability: Actively monitor, optimize, and deep-dive into platform systems to ensure maximum stability and safeguard our internal SLAs. You will share responsibility for system availability by participating in our casual on-call duty rotation. Enabling Internal Teams: Provide a robust technical foundation and clear abstraction layers so other teams can build and deploy their tools swiftly, securely, and consistently. Project & Team Leadership: Lead software development initiatives, supervise and mentor other team members, and document software thoroughly. Stakeholder Collaboration: Analyze the needs of our internal users to deliver features that accelerate company-wide development and eliminate repetitive manual work. Important things for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN 18 850 - 25 900 Annual bonus based on your annual performance and company results. Our team is based in Poznań. We are looking for people who: Have Strong JVM Engineering Fundamentals: Demonstrate deep expertise in backend engineering with Kotlin/Java and have proven experience with distributed systems, Kafka , queuing systems, and PostgreSQL . Are Versatile & Tech-Agnostic: Are open to a very diverse environment. While your primary focus is the JVM stack, you are enthusiastic about collaborating with team members who touch frontend components (React/TypeScript) or AI assistant architectures (Python) Thrive under High Responsibility: Understand the business criticality of internal platform tools. You care about visual consistency, high security, and deep auditability, knowing that system stability directly impacts our daily customer service operations. Value Quick Feedback & Continuous Impact: Enjoy working closely with an internal customer base, allowing you to receive rapid feedback on your work and see its immediate organizational impact. Are Forward-Thinking & Innovative: Are open to experimenting with cutting-edge efficiency boosters. Our team actively explores integrating AI Agents and LLMs into our internal tooling and workflows to optimize daily operations. Possess a Pragmatic, Problem-Solving Attitude: Look for the best tool for the job, maintain an analytical mindset, and focus on driving automation over repetitive manual task Communicate in English: At a B2 level or higher. What's in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!
Technology
Allegro
Senior Software Engineer (Python) - Trust Assurance
Senior
Hybrid
Poznan, Poland
18,850 - 25,900 PLN/mo
🏢 Summary: Backend engineering role focused on building secure, scalable systems for fraud prevention, compliance, and data transparency in a large-scale marketplace environment. The position involves developing automation-driven backend platforms using Python, JVM technologies, cloud data tools, and modern infrastructure. The team offers high architectural autonomy, hybrid work, and opportunities to work with large-scale distributed systems and ML-supported solutions. 🗂️ Requirements: Python, Willingness to work with JVM languages, Experience with Kotlin, GCP, BigQuery, Dataproc, Clean code practices, Code reviews, Analytical mindset, Problem-solving skills, English B2 📃 Skills: Python, Kotlin, JVM, GCP, BigQuery, Dataproc, Spark, SQL, MachineLearning, MLOps, Kubernetes, Docker, Consul, GitHub, GitHubActions, MacBook, Windows 🏢 Description: About the job: Maintaining top-tier safety standards at macro scale: Allegro is a safe platform for millions of users. You will design, develop, and maintain backend systems that keep frauds and policy violations at an absolute minimum. Designing core data-sharing and transparency platforms: You will design, develop, and maintain high-security internal platforms responsible for trusted data exposure and compliance. Instead of dealing with legacy external tech, you will build modern abstraction layers that handle data flows, strict auditing, and access control. Data-driven engineering culture: We focus on automation, clean documentation, and code optimization. We actively eliminate repetitive manual work in favor of building stable, scalable system solutions. Mature and collaborative team: You will join a 6-person team with a strong senior presence. We heavily value engineering craftsmanship, knowledge sharing and high architectural autonomy. Technological Compliance & R&D: You will design solutions where advanced backend architecture meets evolving regulatory landscapes and market dynamics. Your work involves building intelligent tools that guarantee the transparency of our marketplace and quickly adapt to sophisticated, creative patterns, making our marketplace resilient to any emerging risks. Pragmatic Tech Stack : We select the best tools for the job rather than sticking to one framework. Our ecosystem includes JVM languages and Python. We process data using BigQuery and Spark jobs, utilize graph, relational and document databases, and implement traditional Machine Learning models to support decision-making. Driving Automation : You will play a key role in transforming how we handle verification processes. We are moving heavily towards automation to make our systems faster, more accurate, and less reliant on manual intervention. Important things for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN 18 850 - 25 900 Annual bonus based on your annual performance and company results. Long term discretionary incentive plan based on Allegro.eu shares (restricted stock units). Our team is based in Poznań. We are looking for people who: Code in Python and is willing to expand into JVM languages (Kotlin) to work with other parts of our system. Are comfortable with GCP tools , particularly BigQuery and Dataproc. Want to build solid, clean code , actively participate in code reviews, and enjoy sharing knowledge with the team. Have a strong sense of ownership and mission , wanting to directly impact the safety of millions of Allegro users. Possess an analytical mindset and a problem-solving attitude. Use AI tools to boost daily productivity but maintain critical thinking and never blindly accept code suggestions. Communicate in English at a B2 level or higher. Nice to have: Experience or strong interest in Machine Learning (ML) and MLOps What's in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!
Technology
Accenture
Calypso Developer
Mid
Hybrid
Warsaw, Poland
🏢 Summary: Backend Java Developer role focused on building and maintaining financial systems using Java 17+, Spring Boot, and Nasdaq Calypso. The position involves integrating messaging platforms, developing secure and testable backend services, and collaborating on international banking projects. The offer includes flexible work arrangements, professional development opportunities, and exposure to modern engineering practices. 🗂️ Requirements: 3+ years of commercial experience as a Java Backend Developer, Experience with Nasdaq Calypso software, Strong knowledge of Java 17+, Strong knowledge of Spring Framework, Strong knowledge of Spring Boot 3.x, Experience with ActiveMQ/JMS, Kafka, or RabbitMQ, Experience with SQL Developer, Experience writing unit, integration, and functional tests using JUnit or similar libraries, Understanding of secure coding practices and application vulnerabilities, Knowledge of object-oriented programming, Knowledge of design patterns, Knowledge of clean code principles, Understanding of application observability concepts, English level B2+, Strong communication skills 📃 Skills: Java, Spring, SpringBoot, Calypso, Kafka, JMS, ActiveMQ, RabbitMQ, SQL, JUnit, OOP, Terraform, Helm, Jenkins, ArgoCD, GitOps, Docker, Kubernetes, OpenShift, Grafana, Kibana, Copilot 🏢 Description: WHO WE ARE: Accenture is a leading global professional services company that helps the world’s leading businesses, governments and other organizations build their digital core, optimize their operations, accelerate revenue growth and enhance citizen services. We offer solutions and assets across Strategy & Consulting, Technology, Operations, Industry X and Accenture Song. At Accenture Technology, you will work with modern engineering practices and technologies to deliver scalable, secure, and high-quality solutions for global clients while continuously developing your expertise. THE WORK: Design, develop, and maintain backend services using Java 17+, Spring Framework, and Spring Boot 3.x Work with Nasdaq Calypso platform to support and enhance financial systems Integrate messaging systems such as Kafka, JMS/ActiveMQ, or RabbitMQ Develop and optimize database queries using SQL Developer Implement testing strategies (unit, integration, and functional) using JUnit and related tools Apply secure coding practices and contribute to improving application reliability and performance Collaborate with cross-functional teams to deliver high-quality, maintainable solutions based on clean code and design patterns Flexible: The work location for this role may include a mix of working remotely, onsite at a client or in an Accenture office - depending on specific project circumstances. With all our roles, there is some in-person time for collaboration, learning and building relationships with clients, peers, leaders, and communities. As an employer, we will be as flexible as possible to support your specific work/life needs. WHAT’S IN IT FOR YOU? Work on international projects in the financial domain, gaining exposure to advanced banking systems and technologies Collaborate with experienced engineers and continuously expand your technical expertise Contribute to projects where learning, improvement, and knowledge sharing are part of daily work. Qualification HERE’S WHAT YOU’LL NEED: 3+ years of commercial experience as a Java Backend Developer Experience with Nasdaq Calypso software Strong knowledge of Java 17+, Spring Framework, and Spring Boot 3.x Experience with messaging platforms such as ActiveMQ/JMS, Kafka, or RabbitMQ Experience with SQL Developer Experience in writing tests (unit, integration, functional) using JUnit or similar libraries Understanding of secure coding practices and common application vulnerabilities Solid knowledge of object-oriented programming, design patterns, and clean code principles Understanding of application observability concepts, including logging and metrics Good written and spoken English (B2+) Ownership mindset, proactive attitude, and strong communication skills Research indicates that some candidates, especially the most diverse ones, may hesitate to apply for positions if they don't meet all requirements. If you believe you possess the necessary skills, even if not meeting every requirement, we wholeheartedly encourage you to submit your application. BONUS POINTS IF YOU HAVE: Experience with Infrastructure as Code tools (Terraform, Helm) Knowledge of CI/CD tools such as Jenkins or ArgoCD Familiarity with GitOps practices Experience with Docker and Kubernetes/OpenShift Experience with monitoring and observability tools such as Grafana or Kibana Experience using AI-assisted development tools (e.g., GitHub Copilot, Claude Code) Research indicates that some candidates, especially the most diverse ones, may hesitate to apply for positions if they don't meet all requirements. If you believe you possess the necessary skills, even if not meeting every requirement, we wholeheartedly encourage you to submit your application WHAT WE OFFER: Permanent employment contract. Individual support of a People Lead and a specific path of professional development, as well as the possibility of a session with a Coach. A wide training package (soft, technical, and language training offer, access to the e-learning platforms, Gallup test, GenAI training, possibility of co-financing courses, and certification). Employee Assistance Program - legal, financial, and psychological consultations. Accenture employees eligible for the Employee share purchase plan automatically become eligible for quarterly dividends if they own company shares. Paid employee referral program. Private medical care, life insurance. Access to the Worksmile platform (possibility of using a wide range of products and services, including the Multisport card). WHAT WE BELIEVE: Accenture does not discriminate employment candidates on the basis of race, religion, color, sex, age, disability, national origin, political beliefs, trade union membership, ethnicity, denomination, sexual orientation or any other basis impermissible under Polish law. All our leaders are committed to building a better, stronger and more durable company for future generations to create positive, long-lasting change. Inclusion and diversity are fundamental to our culture and core values. Our rich diversity makes us more innovative and creative, which helps us better serve our clients and our communities. Our position as partner to many of the world’s leading businesses, organizations and governments affords us both an extraordinary opportunity and a tremendous responsibility to make a difference. Sustainability is one of our greatest responsibilities, which we embed it into everything we do and for everyone we work with. 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