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Backend Engineer

Backend Engineer

Staff Backend Engineer (B2B - Warsaw)

Fresha

Warsawcontractlead

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Описание вакансии

Location: Warsaw, Poland — Onsite (4 days / week)

Contract: B2B

  • 25–42 k PLN net / month + RSUs

Fresha: Shaping the Future of Beauty & Wellness

Join Fresha, the leading marketplace platform transforming the beauty and wellness industry globally. With over 120,000 businesses and 450,000 stylists trusting our platform, we've powered over 1 billion appointments worldwide. Fresha empowers businesses with an all-in-one platform for bookings, point-of-sale, marketing, and more, while connecting consumers to local services.

At Fresha, we believe AI is a force multiplier for feature delivery, not just a coding assistant. We provide every engineer with top-tier tooling (Claude, GitHub Copilot, Cursor) to strip away technical toil—so you can focus your energy on shipping high-impact product features. We value engineers who know how to leverage these tools to drive momentum within our 6-week cycles, accelerating the journey from concept to code while maintaining the deep technical judgment to verify, secure, and own the final user experience.

Your Impact as a Staff Backend Engineer

Are you ready to make a significant impact in a fast-paced, autonomous environment? We're seeking an exceptional Staff Backend Engineer to join our cross-functional product team in Warsaw.

What You'll Do

  • Technical - this is a heavily technical role; hands-on coding skills are expected. It’s not a management role
  • Leadership - Own and deliver cross-team and cross tribal technical initiatives
  • Architectural - Take ownership of architecture for a tribe
  • Guidance - Sought out for technical guidance; anticipating technical issues at the product level and making architectural and design decisions to avoid them
  • Improvements - Create sweeping improvements in stability, performance and scalability across major business-critical systems
  • Delivery - Ensure timely delivery of your team’s projects, which will ultimately have a tangible impact on Fresha’s success
  • Lead-by-example - Make sure your team follows our engineering practices by leading from the front
  • Collaboration - Work closely with diverse functions within the team across Product, Design, Data and QA and make sure that the team has clear goals and regularly delivers value to our users
  • Learning - Facilitate continuous learning and improvement for your team
  • Standards - Make sure that the systems your team owns meet Fresha quality, reliability and scalability standards
  • Innovative - You will be anticipating broad technical changes and ensuring Fresha is always ahead of the curve
  • Strategic - Recognising and making trade-offs concerning the whole system. You have a deep understanding of the entire architecture for a significant part of our business, and you’re able to articulate clearly the scaling and reliability limits of that area.
  • Multiplier - Primarily acting as a multiplier by building systems, authoring tools or introducing policies or patterns that raise the level of productivity of the entire organisation
  • Communication - Communicating the awesomeness of Fresha in different Tech communities externally via talks and blog posts, identifying areas that we can share effectively with the outside world, guiding the creation of content and communication around those areas. Leading conversations internally about the direction of significant areas of technology, driving wide-team consensus on the adoption of this direction and using this direction to inspire engineers

This list is not exhaustive, and there may be other activities you are required to deliver.
What We Are Looking For

  • AI-Augmented Workflow: You have deep experience building and interacting with AI agents, using them to amplify your output to 5x that of manual coding. You are able to integrate agents into our workflow while strictly adhering to our architecture and security standards, taking full accountability for ensuring all generated code meets the quality expectations of a Senior Engineer.
  • Delivery - You have consistently delivered large systems involving one or more teams’ contributions on time at a high level of quality
  • Problem-solving - You’ve had to quickly break down complex problems into potential solutions, knowns, and unknowns, in order to get a solid resolution faster
  • Debugging - You’re capable of debugging the hairiest problems that the team encounters
  • Strategy - Played a key role in developing multi-year technology strategy for complete and critical areas of the business that encompass multiple systems and teams
  • Adaptability - You have created an architecture that enables many potential futures without knowing exactly what the future is
  • Relationships - Ability to interact with people from across the business and build strong relationships, including the ability to effectively influence upwards
  • Facilitation - Listened and guided debates to help reach consensus; once a decision is made clearly communicate the decision(s) back
  • Planning - Set short to medium-term strategic technical direction, able to look ahead 6-12 months identify areas of greatest need and create plans to improve them
  • Mentorship - You’re seen as a role model and mentor to every technical member of the team
  • Contribution - Recognised as a prolific contributor to core and side projects
  • Simplification - Consistently reduced the complexity of projects, services, and processes to get more done with less work
  • Architecture - Shaped broad architecture; shipped multiple large services, complex libraries or major pieces of infrastructure
  • Impact - Made obvious positive impact on an entire company’s technical trajectory
  • Team-player - Happy to roll sleeves up and assist the team when required (team player)
  • Proactive - Self-starter and proactive approach
  • Adaptive - Comfortable working in a fast-paced and changing environment

At Fresha, we value passion and potential as much as specific skills. If you're enthusiastic and eager to learn, we encourage you to apply, even if you don't meet every listed requirement. We believe in fostering growth and providing the support needed for you to excel in your role.

Why Join Fresha?

  • Real Impact: Directly influence our product and architecture in a rapidly growing global business.
  • Cutting-Edge Tech: Work with modern technologies and contribute to a significant migration to microservices.
  • Dynamic Culture: Be part of a team that encourages autonomy and innovation.

Don't meet every requirement? We value passion and potential. Apply today and let's grow together!
Benefits

  • Taking part in the decision making process of migration to microservices.
  • Learn how to design, deploy and maintain complex applications.
  • Help us to introduce other technologies such as serverless services, SQS, continuous delivery and deployment and more.
  • Flexi-time (around core hours)
  • Competitive salaries & RSUs
  • 20 days PTO
  • Travel coverage when visiting teammates - through workshops and social events

Interview Process

  • Screen Stage - Video-call with a member from the Talent Team (45-60min)
  • 1st Stage - Technical video/In-person interview with the team (90min)
  • 2nd Stage - Technical Video/In-person interview with Team (up to 2 hours)
  • Final Stage - Video interview with Head of Engineering / VP of Engineering /CTO (60min)

We aim to complete the entire interview process and deliver feedback within
4 weeks
.
Every job application received is reviewed manually by our talent team. While we strive to assess applications within 7 days, the sheer volume of talented individuals expressing interest may occasionally extend this timeframe

25,000 zł - 42,000 zł a month

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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Backend Engineer

Senior IT Analyst (B2B)

ALGOTEQUE Innovation Hub

Krakow

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Описание вакансии

ALGOTEQUE to firma doradcza IT, która wspiera startupy, średnie i duże przedsiębiorstwa w tworzeniu i wdrażaniu innowacyjnych technologii. Nasz zespół ma udokumentowane sukcesy w projektowaniu, rozwijaniu, wdrażaniu i integracji rozwiązań programistycznych (AI, ML, BI, Web, Automatyzacja) dla branż takich jak telekomunikacja, energetyka, bankowość, ubezpieczenia, farmacja, motoryzacja, przemysł oraz e-commerce. Świadczymy nasze usługi zarówno w modelu fixed-price, jak i time-and-materials, pomagając naszym klientom w osiąganiu ich celów biznesowych i strategii IT.

Job Description

  • Zbieranie i analiza wymagań biznesowych oraz systemowych.
  • Dekompozycja, priorytetyzacja i specyfikacja wymagań funkcjonalnych oraz niefunkcjonalnych.
  • Analiza i opiniowanie proponowanych rozwiązań systemowych.
  • Przygotowywanie dokumentacji, historyjek, modeli procesów, danych i integracji.
  • Udział w projektowaniu architektury systemów oraz modelowaniu danych i procesów.
  • Analiza i projektowanie integracji między systemami.
  • Współpraca z biznesem, deweloperami, testerami, architektami i dostawcami.
  • Przygotowywanie i weryfikacja scenariuszy testowych oraz wsparcie wdrożeń.
  • Prowadzenie spotkań z interesariuszami i wspieranie realizacji inicjatyw w środowisku Agile.
  • Wspieranie przygotowania monitoringu, metryk i raportów na podstawie wiedzy systemowej i biznesowej.
  • Praca zarówno z systemami legacy, jak i nowoczesnymi rozwiązaniami IT.

Profile / Requirements

  • Wykształcenie wyższe techniczne lub pokrewne.
  • Minimum 5 lat doświadczenia w analizie systemowej, biznesowej lub procesowej.
  • Minimum 2 lata doświadczenia w sektorze bankowym oraz 4 lata doświadczenia w IT.
  • Praktyczna znajomość analizy, dokumentowania i dekompozycji wymagań.
  • Znajomość UML, BPMN lub diagramów sekwencji.
  • Znajomość relacyjnych baz danych i SQL.
  • Praktyczna znajomość REST, SOAP i API oraz metod integracji systemów.
  • Znajomość JIRA i Confluence.
  • Praktyczna znajomość metodyk Agile.
  • Umiejętność pozyskiwania i analizy danych oraz informacji od różnych interesariuszy.
  • Umiejętność pracy z systemami legacy i nowoczesnymi rozwiązaniami.
  • Analityczne myślenie, samodzielność i umiejętność rozwiązywania problemów.
  • Bardzo dobre umiejętności komunikacyjne i współpracy z różnymi interesariuszami.
  • Dobra znajomość języka angielskiego na poziomie zaawansowanym.

Mile widziane

  • Doświadczenie w obszarze backoffice, bankomatów, płatności, rozliczeń lub clearingu.
  • Znajomość zagadnień regulacyjnych.
  • Znajomość MQ/SOA lub Kafka i komunikacji event-driven.

Dodatkowe informacje

  • Forma współpracy: B2B.
  • Model współpracy: 100% zdalnie, z możliwością sporadycznego udziału w spotkaniach projektowych w wybranej lokalizacji (Kraków / Katowice / Warszawa).

AO4387

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Backend Engineer

Administratorka/Administrator aplikacji rozliczeń i rachunkowości

PKO Bank Polski

Warsaw

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Описание вакансии

Na Co Dzień w Naszym Zespole

  • eksploatujesz i administrujesz bankowe aplikacje informatyczne w szczególności z obszaru rozliczeń transakcji skarbowych,
  • monitorujesz, analizujesz i nadzorujesz dostępność i pojemność eksploatowanych aplikacji,
  • realizujesz usługi informatyczne dla jednostek biznesowych banku w zakresie eksploatowanych aplikacji,
  • rozwiązujesz incydenty/problemy zgłaszanych przez jednostki banku z zakresu działania administrowanych aplikacji,
  • prowadzisz dokumentację oraz współpracujesz z dostawcami oprogramowania w zakresie obsługi błędów i problemów eksploatacyjnych,
  • bierzesz udział w pracach zespołów projektowych wdrażających usługi IT,
  • współpracujesz z administratorami zasobów informatycznych w zakresie eksploatowanych aplikacji,
  • bierzesz udział w testowaniu i wdrażaniu poprawek serwisowych i nowych wersji aplikacji.

To Stanowisko Może Być Twoje, Jeśli

  • posiadasz doświadczenie w administracji aplikacjami bankowymi, w rozwiązywaniu problemów i incydentów we współpracy z odbiorcami wewnętrznymi oraz dostawcami wewnętrznymi i zewnętrznymi,
  • masz wiedzę w zakresie eksploatacji i obsługi systemów operacyjnych Linux, MsWindows oraz baz danych MsSQL i Oracle, serwerów aplikacji Tomcat, JBOSS, WebLogic,
  • posiadasz praktyczną znajomość języka zapytań SQL,
  • masz doświadczenie w administracji aplikacjami eCrossBony, Calypso,
  • znasz język angielski na poziomie podstawowym w mowie i piśmie,
  • posiadasz umiejętność pracy w zespole, kreatywność, samodzielność, odpowiedzialność,
  • znasz aplikacje bankowe z obszaru rozliczeń transakcji skarbowych,
  • posiadasz wykształcenie wyższe o profilu informatycznym.

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Backend Engineer

Senior IT Analyst (API Domain)

Jit Team

Warsaw

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Описание вакансии

Salary:
1000-1140 PLN/day on B2B

Work model:
hybrid from Warsaw (2/3 days per week from the office)

Why choose this offer?

  • You can expect a
    flexible work organization
  • The
    international work environment
    will give you the opportunity to interact with the English language on a daily basis
  • Scandinavian organizational culture
    will provide you with work-life balance, you will gain time for additional training (financed by Jit)
  • The
    Jit community
    will bring you a nice time during regular integration meetings

Project

You will be involved in a financial project focused on
business and data analysis
within the
STO Domain API
.

The role centers on
translating business requirements into clear technical designs
, defining data structures and mappings, and
supporting API contract definitions
. You will collaborate with business stakeholders, consumer teams, and source-system teams to
ensure alignment of requirements
,
data models
, and
system dependencies
. The project also involves establishing business rules,
defining canonical data models
, and supporting
planning activities across delivery teams
.

Responsibilities you'll have

  • Analyse and align business requirements, data models, system flows, and dependencies
    , and translate them into clear technical designs and implementable delivery tasks
  • Design and document services (contracts)
    in and around the
    STO Domain API
    , including rules for transformation logic
  • Support
    contract-first API definition
    with producers, primarily the
    safekeeping system
  • Define
    data mapping
    and the
    canonical data model
  • Raise and coordinate requirements during
    quarterly/PI planning
  • Establish
    business rules
    and valid
    request and response examples

Expected competences and knowledge

  • 5+ years of experience
    in business analysis, data analysis, or related roles
  • Strong data analysis and mapping capabilities
  • Ability to
    translate business rules
    into concrete examples and acceptance criteria
  • Ability to work across
    business, consumer, and source-system teams
  • Understanding of
    custody positions, subpositions, reservations, and corporate actions
  • Knowledge of data description using
    XML, XSLT, JSON, and AVRO

Technologies
you'll work with

  • STO Domain API
  • XML
  • XSLT
  • AVRO
  • JSON

Client
– why choose this particular client from the Jit portfolio?

Jit Team has had an
over-decade-long relationship
with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present,
over 200 Jit personnel
are engaged in the completion of
more than 60 projects
for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the
Scandinavian culture
, which is conducive to people who place emphasis on
work-life balance and feedback culture
. Furthermore, all projects are executed in international teams, giving constant exposure to the English language.

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Backend Engineer

IIoT Technical Lead and Developer (Ignition Focus) IRC292576

GlobalLogic

Krakow

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Описание вакансии

Description
The client is expanding the Industrial IoT (IIoT) Solution Delivery team with an
Ignition-focused Technical Architect
who

will
design
and
implement
scalable solutions using
Inductive Automation’s Ignition platform
. Able to understand

and migrate one SCADA solution to Ignition. You will complement our ThingWorx + Kepware practice, enabling client to

deliver, integrate, or evaluate Ignition-based solutions across global manufacturing plants while ensuring robust OT/IT

integration and secure cloud connectivity.

Requirements
Ignition Expertise

  • 4–8+ years implementing solutions with Ignition 8.x.
  • Strong hands-on expertise with Gateway architecture, Perspective/Vision, Tag Historian, Alarm

ing, Reporting, SSO, and Gateway Network (multi-site).

  • Proficient in Python/Jython for scripting and automation.
  • Installation of different architecture of SCADA solution (Eg: Monolithic, Enterprise and Hub and

Spoke etc)

Industrial Connectivity & OT

  • Deep knowledge of OPC UA, MQTT (Sparkplug B), Modbus, Ethernet/IP.
  • Practical experience integrating Kepware and connecting to multiple PLC families.
  • Understanding of SCADA/MES concepts, data lifecycles, and shop-floor realities.

Cloud & Enterprise Integration

  • Experience integrating with Azure (e.g., IoT Hub, Event Hubs, Functions, Storage) or similar cloud

platforms.

  • Familiarity with data pipelines and historian/BI integrations.

Security & Compliance

  • Working knowledge of ISA-95 and IEC 62443 principles, certificate management, network segmen

tation, and secure tunneling.

Soft Skills

  • Clear communicator who can align engineers, managers, and non-technical stakeholders.
  • Strong documentation habits; able to create standards and mentor others.
  • Comfortable working in global, multi-cultural environments.

Must Have:

  • Certifications: Ignition Core (minimum) or Gold (ideal);

Nice To Have (Preferred)

  • Azure Architect/IoT; ISA/IEC 62443 training; TOGAF.
  • Experience of migrating Legacy Scada solution to Ignition Solution
  • Experience with ThingWorx (Mashups, Data Models, Edge/SDK) for hybrid estates.
  • Experience with MES concepts (e.g., work orders, genealogy, OEE) and integration patterns.
  • Familiarity with data governance, semantic modeling, and contextualization for analytics.
  • Experience with CI/CD for SCADA/IIoT assets (git, testing frameworks, packaging).

Education:
Bachelor’s degree in Electrical/Electronics/Automation Engineering, Computer Science, Industrial IT, or equivalent experience. Master’s degree is a plus.

Job responsibilities

Architecture & Design

  • Design Ignition architectures (Gateway redundancy, distributed/multi-site, edge deployments).
  • Defining tag models, historian strategy, alarming, reporting, and data flows.
  • Develop integration patterns with Kepware, OPC UA, MQTT (Sparkplug B), databases (SQL Server, Postgres, MySQL), and Azure services.
  • Define hybrid patterns and coexistence strategies with ThingWorx where applicable.

Data Model and Migration

  • Understand Ignition Data model and able to interpret Legacy (Asdaex) SCADA solution and migrate into Ignition.

Implementation Leadership

  • Guide teams on Perspective/Vision, Tag Historian, Alarm Pipelines, SSO/Identity, and scripting (Python/Jython).
  • Establish reusable templates, components, and standards for multi-plant rollouts.

OT/IT Convergence

  • Collaborate with automation engineers integrating PLCs/DCS (Siemens, Rockwell, Mitsubishi, Beckhoff, etc.).
  • Partner with enterprise IT, cybersecurity, and network teams to ensure secure and reliable connectivity to the cloud.

Governance & Standards

  • Author and maintain reference architectures, naming conventions, development guidelines, and security baselines.
  • Contribute to estimation, SoW inputs, and solution guardrails for partners and vendors.

What we offer

Empowering Projects:
With 500+ clients spanning diverse industries and domains, we provide an exciting opportunity to contribute to groundbreaking projects that leverage cutting-edge technologies. As a team, we engineer digital products that positively impact people’s lives.

Empowering Growth:
We foster a culture of continuous learning and professional development. Our dedication is to provide timely and comprehensive assistance for every consultant through our dedicated Learning & Development team, ensuring their continuous growth and success.

DE&I Matters:
At GlobalLogic, we deeply value and embrace
diversity
. We are dedicated to providing
equal
opportunities for all individuals, fostering an
inclusive
and empowering work environment.

Career Development:
Our corporate culture places a strong emphasis on career development, offering abundant opportunities for growth. Regular interactions with our teams ensure their engagement, motivation, and recognition. We empower our team members to pursue their career goals with confidence and enthusiasm.

Comprehensive Benefits:
In addition to equitable compensation, we provide a comprehensive benefits package that prioritizes the overall well-being of our consultants. We genuinely care about their health and strive to create a positive work environment.

Flexible Opportunities:
At GlobalLogic, we prioritize work-life balance by offering flexible opportunities tailored to your lifestyle. Explore relocation and rotation options for diverse cultural and professional experiences in different countries with our company.

About GlobalLogic
GlobalLogic, a Hitachi Group Company, is a trusted digital engineering partner to the world’s largest and most forward-thinking companies. Since 2000, we’ve been at the forefront of the digital revolution – helping create some of the most innovative and widely used digital products and experiences. Today we continue to collaborate with clients in transforming businesses and redefining industries through intelligent products, platforms, and services.

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Staff Backend Engineer (B2B - Warsaw)Fresha · Poland

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