Skip to content
Software Engineer

Software Engineer

Software Engineer 1 (.NET) - Core System

Allegro

Warsawlead

Apply on the employer's site

Role description

About the job

Allegro Pay is Central Europe’s largest and fastest growing fintech – the only place where financial solutions can be created on such a large scale, using state-of-the-art technology. We work on purchase financing and payment methods that are used daily by customers of Allegro, the most popular shopping platform in Poland and one of the largest e-commerce companies in Europe. Due to this scale, we have the opportunity to work on one of the most exciting purchase financing and payment solutions in our country. We are looking for talented people who want to create powerful and stable solutions to support a product with over a dozen million active users.

The role

We are looking for a Software Engineer with a solid foundation in .NET and backend development to join a team responsible for our core financial system - the absolute source of truth for customer and loan data. Your focus will be on improving system performance, scalability, and reliability, while designing and delivering new capabilities and continuously raising the quality and maintainability of the codebase. You will also work closely with internal business stakeholders, such as Accounting and Controlling teams, to understand their needs and translate them into robust technical solutions.

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 11 200 - 15 250
  • Annual bonus based on your annual performance and company results.
  • Our team is based in Warsaw.

Here's why you should join us:

  • AI-Adoption strategy: we invest a lot of effort to upskill our specialists and equip them with the newest AI coding technologies like Copilot or OpenCode.
  • Big Scale: Immerse yourself in the exciting world of Allegro Pay, where your .NET skills will tackle challenges on a large scale. You'll be contributing to financial solutions that affect over 2.5 million people (handling 60+ million requests daily and managing dozens of terabytes of data)
  • Engineering Maturity: Join a culture that mirrors the top tech giants. Our commitment to engineering excellence and maturity puts us on par with industry leaders like FAANG companies. (11 of 12 in Pragmatic Engineer Score)
  • Best-in-Class Expertise: Work alongside the best experts in the field, collaborating to push the boundaries of what's possible in FinTech. Our team includes MVPs and many conference speakers
  • Impactful Products: Imagine this – your work at Allegro Pay contributes to creating products that you, your family, and friends might already use daily. See the direct impact of your efforts on the FinTech landscape (with 120+ deployments per month)

We are looking for people who:

  • Have experience in .NET backend development
  • Have practical experience working with SQL databases, specifically PostgreSQL
  • Are eager to understand the broader business context and communicate effectively with internal clients
  • Demonstrate a high sense of responsibility and resilience, as you will be working with critical financial data
  • Are open to actively utilizing AI tools (such as GitHub Copilot) to optimize their daily coding tasks
  • Value independence and are ready to take ownership of the features they deliver from start to finish
  • Are committed to continuous learning, open to constructive feedback, and willing to continuously improve their skills and ways of working
  • Collaborate effectively within a team, share knowledge, and contribute to a supportive engineering culture
  • Speak fluent Polish (essential for daily communication with business stakeholders) and communicative English (at least B2 level)

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!

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Coming to this page

A resume for this role — and a ticket to the draw

We take the posting apart down to the real requirements and rewrite your resume against it — by asking, not inventing: no line appears without your confirmation. Sign in to get it first, and to enter the draw.

  • A resume for this exact role, not a universal one
  • Answers are kept: edit any one, not the whole conversation
  • All in your account — open it from any device

On the wheel

A discount on mentoring

Winners are drawn at random among entries with a confirmed email. The date and the full rules are on the draw page.

Draw rules

Software Engineer

C Engineer

Pico

Krakow

Apply on the employer's site

Role description

C Engineer

Pico fuels the global capital markets community by providing exceptional market data services and customized managed infrastructure solutions. As financial industry experts at the center of markets and technology, we help our clients efficiently scale their business and quickly access markets. From infrastructure to connectivity, we support our clients through the full trading lifecycle. We are a global company headquartered in New York, with offices in Chicago, London, Singapore, Hong Kong and Tokyo.

Pico provides agile and transparent technology solutions to the Financial Markets community including infrastructure hosting, network connectivity, raw and normalized market data, Corvil analytics, and cloud services giving organizations the freedom to move fast. As financial industry experts at the center of markets and technology, we help our clients efficiently scale their business and quickly access markets. From infrastructure to connectivity, we support our clients through the full trading lifecycle. We are a global company headquartered in New York, with offices all around the globe.

The Role

This is an opportunity to join a world-leading engineering team working on the design and development of new features across Pico’s entire product range. Our Redline Trading Solutions provides ultra-low latency market data and order execution solutions that solve the toughest latency and throughput challenges in today’s equities, options, futures and foreign exchange markets.

We need brilliant engineers to help bring this technology into new markets and new deployment models. If you want to work with a team of highly-skilled engineers where learning and innovation are everyday activities; if you want to solve the problems encountered when normalizing and analyzing the firehose of data in real time – then Pico is what you are looking for.

Requirements:

  • BSc/MSc in a relevant Engineering disciple (Computer Science, Computer Engineering, Electrical Engineering, etc)
  • Proficiency in C development under Linux
  • Knowledge of multi-threaded application development
  • Knowledge of IP networking
  • Insatiable appetite for problem-solving and learning about technology
  • Team player - excels in a collaborative environment while using initiative to the team’s benefit
  • Focus on writing maintainable and scalable code
  • Excellent communication skills (written and verbal) and interpersonal skills
  • Ability to ask for help, take advice, and incorporate constructive feedback
  • This role is office-based, minimum expectation is hybrid office/remote work.
  • 3+ years of experience working in a Tech firm, preferably in the financial space.
  • This role is office-based, minimum expectation is hybrid office/remote work.

Experience/Knowledge of the following is desirable:

  • Automated testing (unit testing, integration testing)
  • Python programming
  • Java programming
  • Knowledge of Financial trading concepts (orders, trades, quotes, etc) and protocols, including FIX.

Working Arrangements

This is a Hybrid position with weekly time in the office with the flexibility of working from home. Though travel may be required from time to time, it is not expected to be regular or frequent.

IMPORTANT DATA PRIVACY INFORMATION:

This position is available with PICO GLOBAL LTD. The controller of your personal data will be PICO GLOBAL LTD.

For further information on what personal data we collect, how we will process your personal data and your rights with respect to your personal data please read our Pico Job Candidate Privacy Notice,

View Here

.

Be a part of Pico Family

Pico is an equal opportunity employer. Pico does not discriminate on the basis of a candidate's age, race, gender, color, religion, sexual orientation, physical or mental disability, or other non-merit factors. All employment decisions at Pico are based on business needs, job requirements and qualifications. If you require any assistance or accommodations to be made for the recruitment process, please inform us when you submit your online application.

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Software Engineer

Java Developer

EPAM Systems

Krakowcontractmiddle

Apply on the employer's site

Role description

We are looking for a passionate
Java Developer
to join a global team that develops and maintains a suite of enterprise applications. The system supports critical business operations and serves as the foundation for a next-generation management platform. Team members work closely with operations teams and business analysts to provide global solutions for varied business requirements, with a strong focus on software craftsmanship, quality, and automation.

This role offers a hybrid model, with 3 days per week working from the client's office in Krakow.
Responsibilities

  • Develop new features and maintain the existing codebase
  • Build streaming applications with Apache Flink
  • Write unit, integration, and behavior tests
  • Cooperate within a successful scrum development team built on mutual respect
  • Collaborate to refine user requirements through behavior-driven development (BDD)
  • Partner with other global IT teams
  • Provide level 3 support, assisting the production operations team in the rollout and support-related matters

Requirements

  • 2+ years of experience in Java programming
  • Background in the Spring stack (Spring Framework, Spring Boot)
  • Knowledge of Apache Kafka
  • Showcase of clean coding and refactoring skills with great problem-solving ability
  • Hands-on experience with Agile methodologies, especially Scrum
  • Awareness of test- and behavior-driven development
  • Familiarity with CI/CD practices
  • Capability to improve older code bases, as well as apply modern best practices to new projects
  • Proactive mindset, comfortable working in dynamic environments with fast-paced deliveries and changing requirements
  • Strong written and verbal communication skills in English (B2 level), and the desire to work as part of a global team

Nice to have

  • Expertise in Apache Flink
  • Proficiency in build tools (Apache Maven, Gradle)
  • Skills in SQL databases
  • Hands-on experience with Unix

EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Software Engineer

Microsoft Dynamics 365 Senior Developer

Deloitte

Krakow

Apply on the employer's site

Role description

Description & Requirements
Who we are looking for
We are looking for an experienced Dynamics 365 CRM Senior Developer to join our team and contribute to the design, development, and enhancement of complex CRM solutions. In this role, you will work closely with architects, consultants, and business stakeholders to deliver high-quality technical components.

Required qualifications

  • 5+ years of hands-on experience in Dynamics 365 CE / Dataverse development.
  • Strong proficiency in C#, .NET, JavaScript, and modern development frameworks.
  • Hands-on experience with plugins, custom workflows, PCF, and Dataverse REST APIs.
  • Proven experience integrating CRM with 3rd-party systems via APIs or Azure integration services (Functions, Service Bus, Logic Apps).
  • Knowledge of Power Platform ALM, solution management, and Azure DevOps pipelines.
  • Understanding of CRM security models, data model design, and performance considerations.
  • Solid understanding of Git-based version control (GitHub, Azure DevOps).
  • Microsoft certifications: PL-400, PL-200, AZ-204 (strong plus)
  • Fluent in English (written and spoken).
  • Valid work permit

Your future role

  • Develop and extend Dynamics 365 CRM/Dataverse using C#, .NET, JavaScript, plugins, custom workflow activities, PCF, and Power Automate.
  • Customize model-driven apps (forms, views, business rules, security model).
  • Design and implement integrations with 3rd-party systems using Azure Functions, Logic Apps, REST APIs, Dataverse connectors, and other integration patterns.
  • Troubleshoot, debug, and optimize existing code across multiple CRM modules.
  • Collaborate in solution design sessions, providing technical recommendations.
  • Perform code reviews, ensure adherence to development standards, and improve existing codebases.
  • Work with version control systems (e.g., GitHub, Azure DevOps Git) including branching, pull requests, and code reviews.
  • Support ALM processes, including solution layering, versioning, and build/deployment readiness.

Selection process

  • Apply
  • HR screening
  • On-line technical interview with our Hiring Managers

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Software Engineer

Oracle Developer with German (f/m/x)

Sii Poland

Krakow

Apply on the employer's site

Role description

We are looking for a skilled Oracle Developer to join a project in the banking sector. You will be part of a German-speaking team, responsible for developing and optimizing database solutions using Oracle APEX and PL/SQL. This remote position requires regular communication with customers and collaboration with team members. If you are passionate about creating data-driven web applications and thrive in a dynamic environment, this opportunity may be the right fit for you.

Your tasks

  • Developing and optimizing database solutions using Oracle APEX and PL/SQL
  • Designing and implementing modern, data-driven web applications
  • Analyzing and advising on customer projects while working independently as part of a team
  • Establishing best practices for efficient software development
  • Working on both agile and traditional projects using flexible development methodologies
  • Sharing technology expertise and knowledge with colleagues to contribute to continuous team learning

Requirements

  • At least 3 years of professional experience with Oracle APEX and PL/SQL
  • Ability to communicate independently in German at B2 level, including regular communication with customers and team coordination
  • Advanced level of English for smooth cooperation in an international environment

Nice to have

  • Knowledge of related web technologies such as HTML, CSS, JavaScript, JSON, and REST APIs

Job no. JOB-QLW38

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

  • Great Place to Work
  • Solid financial situation
  • Contracts with the biggest brands
  • Centre of internal trainings
  • Many experts you can learn from
  • Open and accessible management team
  • Profit sharing
  • Passion Sponsorship program
  • Regular integration events and trips
  • Comfortable and well-equipped offices
  • MySii app
  • Medical care

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

36 more openings in this category and country

Software Engineer 1 (.NET) - Core SystemAllegro · Poland

Apply on the employer's site