Senior Software Engineer (PHP) Job at HR Contact (Kraków)

Senior Software Engineer

We are currently seeking a Senior Software Engineer preferably with an interest ...

Location

Salary:

Not provided

Pluris

Expiration Date

Until further notice

Requirements

A bachelor’s degree or foreign equivalent in computer science or related discipline
5 years of progressive, post-baccalaureate experience in Information Technology in development and application support or infrastructure operations
4 years of scripting and programming experience in JavaScript, SQL, Oracle Perl Shell Scripting, and C/C++
3 years’ experience in Unix/Linux environment, including scripting experience
2 years’ experience integrating enterprise class systems in decision support and operational environments
2 years’ experience in operational support of client systems
Programming experience (Java, PHP, C/C++)
2 years’ experience with very large database design and development
Excellent verbal and written communication skills
Outstanding customer service skills

Job Responsibility

Design complex Oracle SQL queries, including performance optimization
Design, build and execute web applications including all aspects of user interface development, testing and client acceptance
Comprehend and write shell scripts using Unix/Linux native shell commands, Perl and PHP, Java codes using Eclipse
Support large bodies of existing code utilizing big data models and multiple data manipulation techniques
Participate in systems integration in decision support and operational (transactional) environments
Map from business requirements directly to technical design
Develop, implement, and maintain large database sets
Manage client systems and provide 24/7 operational support
Oversee and manage work of technical and functional teams in collaboration with business users and lead large project and/ or system implementations
Communicate complex and difficult concepts clearly with business and external partners

What we offer

Very competitive base salary and bonus plan
The top rated health care plan – with very low cost to employees
Uncapped 401k retirement plan match
Seasonal offsite team activities (Rowing on the Charles, sporting events, paintball, bowling, etc.)

Senior Software Engineer

DOCSI is seeking a talented, driven software engineer to join our engineering te...

Location

United States , Minneapolis

Salary:

100000.00 - 140000.00 USD / Year

DOCSI

Expiration Date

Until further notice

Requirements

4+ years of experience working as a software engineer or similar role
Experience in web development with one or more of the following languages/frameworks: PHP, React, Python, Java
Expertise working with relational database systems such as MySQL or PostgreSQL
Demonstrable experience leading technical projects from start to finish (with or without assistance from other team members)
An understanding of building systems to scale with large, often inconsistent data imports
Action driven self-starter who enjoys improving existing processes
A lifelong learning mindset with a desire to explore new ideas and connect them to their work
Ability to work in an often ambiguous, fast-paced environment

Job Responsibility

Work alongside the Director of Engineering and other DOCSI engineers to expand and maintain our software solution
Design and build new user experiences that streamline the complex and confusing process of managing surgical waste
Inform the creation of machine learning tools to amplify the quality of surgical waste reduction recommendations
Create seamless data pipelines and integrations that enable our highly scalable, always available platform
Influence and guide critical design discussions that determine the future direction of our product
Gain access and connections to key members of the Twin Cities startup community
Help shape the culture of a new and growing engineering team

What we offer

An equity package relative to the candidate’s skills and experience
Unlimited vacation policy
A healthcare stipend is available, full healthcare benefits will be available in 2026

Fulltime

Senior Software Engineer

Our platform is PHP, MySQL, and AWS, which we leverage to deliver exciting new f...

Location

United Kingdom , London

Salary:

Not provided

Arrive

Expiration Date

Until further notice

Requirements

Highly skilled and proficient coding in PHP
Strong skills in adjacent areas such as TypeScript, React, JavaScript or Python
Deep technical understanding of MySQL and relational databases, particularly database performance tuning
Knowledge of best practises around Modern Software Engineering, CI/CD, DORA metrics
Experience of troubleshooting and fixing performance issues in a full-stack application
Experience of software architecture and presenting technical designs
Excellent communicator with a self-starter attitude and comfort working autonomously
Demonstrable expertise and understanding of API development/design and experience interfacing with disparate systems
Applicable understanding of software security, common exploits and secure development practices, including the OWASP Top 10
Proven and demonstrable understanding of testing methodologies and frameworks

Job Responsibility

Participate in Scrum ceremonies and work with colleagues, stakeholders and third parties to align on requirements and deliver a user experience
Full lifecycle development of RESTful APIs and web apps which can operate at scale on AWS
Appreciate the benefits of TDD/BDD, ensuring all code is tested and reviewed to the highest standards
Adapt quickly to changing environments, concepts and emerging technologies to assist in the future roadmap of our products
Understand performance tuning and optimisation, and how to diagnose technical issues across local, pre-release and production environments running on AWS
Operate a DevOps culture and are responsible for developing, deploying, operating and monitoring our team’s deliverables
Set the technical standard for the team
offering mentoring and support to your team-mates

What we offer

A rewarding working environment within a collaborative, supportive and inclusive team

Senior Software Engineer

The Wikimedia Foundation is looking for the software engineer to join the Produc...

Location

United States of America , San Francisco

Salary:

141352.00 - 175725.00 USD / Year

Wikimedia Foundation

Expiration Date

Until further notice

Requirements

4+ years related professional experience
Experience building and maintaining large-scale applications
Proficiency in PHP, Javascript and relational databases
Strong foundation in security principles
Experience in driving cross-teams objectives
Experience in driving user and product impact

Job Responsibility

Proactively develop and maintain tools that empower communities to identify, mitigate, and prevent various forms of abuse across Wikimedia projects
Design privacy-conscious systems that detect behavioral patterns indicative of abuse while minimizing false positives and respecting user anonymity
Continuously adapt abuse detection and mitigation strategies in response to changes in browser privacy standards, networking protocols, and platform architecture
Collaborate cross-functionally with product managers, designers, and researchers to create holistic, human-centered solutions that balance safety and freedom
Write resilient, maintainable systems and high-quality code with a focus on long-term sustainability
Implement observability to maintain high levels of quality and system stability
Instrument and measure the impact of anti-abuse across Wikimedia projects

Fulltime

Senior Software Engineer (Backend focused)

Technology has been and continues to be the catalyst for GetYourGuide’s growth. ...

Location

Germany , Berlin

Salary:

Not provided

GetYourGuide

Expiration Date

Until further notice

Requirements

6+ years of software development experience
Expertise in web application development using component-based frameworks
High proficiency in Java
Experience designing architecture and deployment of web applications & services
Experience with writing tests
Ability to turn ideas into fast, reliable, and maintainable code
Positive, proactive team player who is passionate about their craft
Customer-centric prioritization and data-driven decision-making
Excellent written and verbal communication skills in English with the ability to clearly explain technical concepts to others

Job Responsibility

Work with engineers, designers, and analysts
Help to enable your mission team to iterate fast and learn about our customers by designing, launching, and iterating on A/B experiments
Maintain high-quality standards and continuously improve our code base, system, and processes
Design and develop efficient solutions that can continue to scale
Mentor other team members and be involved with hiring
Contribute to the team’s roadmap and long-term strategy
Work with Java, Spring Boot, Vue.js, SASS, Node.js, PHP, MySQL, PostgreSQL, GraphQL, Kafka, Kubernetes

What we offer

Invest in your development with an annual personal growth budget
Become a part of our success with virtual stock options
Enjoy flexibility with a hybrid work-from-home and telecommuting policy
Save on transportation costs with discounted public transportation tickets
Support your loved ones with generous maternity and paternity leave policies
Monthly allowance for transport (Deutschland ticket)
Bonuses for successful employee referrals
Company contributions to personal pension plans
30 days per year for telecommuting
20% discount for friends & family on GetYourGuide activities

Fulltime

Senior Backend Software Engineer - KICK Viewer Engagement

The Viewer Engagement and Experience feature development team powers the heart o...

Location

Australia , Melbourne

Salary:

Not provided

Easygo Gaming

Expiration Date

Until further notice

Requirements

Bachelor's/Master's degree in Computer Science or equivalent practical experience
6-7+ years of hands-on experience in software engineering, focusing on scalable system design and development
Proficiency in multiple programming languages and frameworks relevant to the role (Go, PHP and React)
Strong understanding of code architecture and design principles
Excellent communication skills for effective collaboration across teams and stakeholders
Positive attitude and eagerness to learn new technologies to grow as a full-stack engineer
Strong problem-solving skills and the ability to thrive in a fast-paced, dynamic environment

Job Responsibility

Architect and design scalable, high-performance software solutions in alignment with project requirements and company standards
Optimise existing systems for performance, scalability, and reliability, identifying and resolving bottlenecks and inefficiencies
Actively engage in hands-on coding and development, ensuring code quality, scalability, and maintainability
Collaborate with stakeholders, product managers, and engineering teams to effectively communicate technical concepts
Innovate within the team by pushing for improvements and driving constructive changes to enhance team performance and efficiency
Provide technical guidance and mentor junior engineers in the team

What we offer

Champion Engineering Excellence to influence cultural change across the organisation
Work alongside the top 5% of engineering talent in Australia, using a vast cloud native tech stack including AWS, Microservices, Large-Scale Distributed Systems, Kafka, K8's, Terraform, Golang, ArgoCD, Datadog & Cloudflare
Exposure to building global, large-scale volume products which operate at thousands per second frequency (3 Billion Requests per day!)
Access to over 9,000 courses across our Learning and Development Platform
EAP access for you and your family
Be rewarded with lucrative annual bonuses
Give back with a paid volunteer day
Fuel your day with daily breakfast and open pantries brimming with unlimited snacks and refreshments, all on the house
Break up the week with on site remedial massage Wednesdays
In house full-time barista’s providing you your daily coffee needs

Fulltime

Senior Software Engineer, Video

Senior Software Engineer with deep expertise in video streaming technologies to ...

Location

Australia , Melbourne

Salary:

Not provided

Easygo Gaming

Expiration Date

Until further notice

Requirements

Bachelor's/Master's degree in Computer Science or equivalent practical experience
7+ years of hands-on experience in video streaming software engineering, focusing on scalable system design and development
Proficiency in multiple programming languages and frameworks relevant to the role (Go, PHP and/or React)
Strong understanding of code architecture and design principles
Excellent communication skills for effective collaboration across teams and stakeholders
Positive attitude and eagerness to learn new technologies to grow as a full-stack engineer
Strong problem-solving skills and the ability to thrive in a fast-paced, dynamic environment

Job Responsibility

Serve as a subject matter expert, collaborating with engineering, product, and operations teams to diagnose and resolve complex video-related issues
Architect, develop, and deploy a robust Server-Side Ad Insertion system for our live and VOD platforms, ensuring seamless ad delivery and a high-quality viewer experience
Analyse and address video playback challenges such as startup latency and rebuffering. Implement technical solutions both in player and service architecture that improve Quality of Experience (QoE)
Contribute to the design and evolution of our streaming architecture, from encoding and packaging to content delivery network (CDN) integrations and playback logic
Provide input on technology selection, best practices, and future product requirements for our video and ad platform
Hands-on coding, testing, debugging, and troubleshooting to ensure code quality, scalability, and maintainability
Write efficient, scalable, and maintainable code, adhering to coding standards and best practices
Lead and independently complete medium-sized projects or components from start to finish
Identify opportunities for improvement and take initiative in technical discussions
Share knowledge and best practices with the team, fostering a collaborative and learning-oriented environment

What we offer

EAP access for you and your family
Access to over 9,000 courses across our Learning and Development Platform
A full-time barista who will make you coffee, tea and fresh juices
Daily catered breakfast
Massage Wednesdays
Team lunches and happy hour in the office from 4pm on Fridays
Fun office environment with pool tables, table tennis and all your favourite gaming consoles
Paid volunteer day
Office first culture with flexible start and finish times
Unlimited access to drinks and snacks

Fulltime

Scala Backend Software Engineer, Senior / Lead

To sustain the company's growth, Ledger is looking for new talents. You will sta...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

Experienced engineer and continuous learner with 6+ years of relevant engineering experience
2+ years of technical leadership experience, including effective communication of complex concepts and cross-team coordination to ship critical products
Advanced Scala proficiency
expert-level proficiency, and advanced mastery of a second backend language (e.g., Rust, Java, Python, PHP) is a plus
Excellent collaboration and communication skills
Experience collaborating closely with QA, product management, and key stakeholders to develop and deliver on a shared vision
Led development of complex, high-performance interactive browser applications, including architecture, infrastructure, and optimization
Experience with various web architecture patterns (e.g., Microservices, Event-Driven, P2P)
Ability to apply and adapt software engineering best practices to the engineering environment
Experience in the Web3 ecosystem and in a project involving blockchain fundamentals

Job Responsibility

Develop and maintain high-performance, resilient microservices and APIs to power Ledger's products, including integrations with staking, yield, DeFi services, and blockchain explorers
Contribute to the architecture, design, and implementation of scalable solutions, proactively identifying and addressing technical challenges
Ensure software quality through testing, documentation, and performance optimization, including monitoring and alerting systems
Enhance and maintain CI/CD pipelines to secure and streamline deployment workflows
Provide technical leadership and mentorship, collaborating across teams to deliver impactful projects and improve engineering standards
Drive innovation by identifying opportunities for improvement, contributing to a shared knowledge base, and participating in technical outreach
Manage projects effectively, respecting deadlines, priorities, and deliverables.

What we offer

Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow
Flexibility: A hybrid work policy
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
Well-being: Personal development, coaching & fitness with our dedicated partners
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
High tech: Access to high performance office equipment and gadgets
Transport: Ledger reimburses part of your preferred means of transportation
Discounts: Employee discount on all our products.

Fulltime

Senior Software Engineer (PHP)

HR Contact

Location:
Poland , Kraków

Category:
IT - Software Development

Contract Type:
B2B

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
January 15, 2026

Looking for more opportunities? Search for other job offers that match your skills and interests.

Similar Jobs for Senior Software Engineer (PHP)

Senior Software Engineer

Senior Software Engineer

Senior Software Engineer

Senior Software Engineer

Senior Software Engineer (Backend focused)

Senior Backend Software Engineer - KICK Viewer Engagement

Senior Software Engineer, Video

Scala Backend Software Engineer, Senior / Lead

Senior Software Engineer (PHP)

HR Contact

Location:Poland , Kraków

Category:IT - Software Development

Contract Type:B2B

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:January 15, 2026

Looking for more opportunities? Search for other job offers that match your skills and interests.

Similar Jobs for Senior Software Engineer (PHP)

Senior Software Engineer

Senior Software Engineer

Senior Software Engineer

Senior Software Engineer

Senior Software Engineer (Backend focused)

Senior Backend Software Engineer - KICK Viewer Engagement

Senior Software Engineer, Video

Scala Backend Software Engineer, Senior / Lead

Location:
Poland , Kraków

Category:
IT - Software Development

Contract Type:
B2B

Job Posted:
January 15, 2026