{"id":2122880,"url":"https://alion.io/job/test-driven-solutions-principal-frontend-developer","title":"Principal Frontend Developer","company":{"id":4372490,"name":"Test Driven Solutions","domain":"testdrivensolutions.com","url":"https://alion.io/company/test-driven-solutions","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Frontend","role_family":"Frontend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Wrocław, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":19900,"max":24500,"currency":"PLN","period":"month","gross":null,"usd_annual":75216},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-09-14T12:07:47Z","employer_posted_date":null,"last_verified_at":"2026-09-14T12:07:47Z","board_verified":false,"closed_at":null,"days_open":27,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":27},"description":"Who we are?\nWe are a software Consultancy, who provide highly skilled consultants to support client business needs. We work within private and public sectors, including financial services, government, healthcare, property, education, oil & gas, broadcasting, gaming and renewable energy organisations. We are continuously growing as a business, with new client wins and have multiple offices located in the UK, Poland and in Canada. \n\nAbout the Role\nAs our Engineering Practice continues to grow, we are looking for a Principal Frontend Consultant to help shape its future. This is a senior leadership role that sits at the intersection of technical strategy, people development, and client impact.\nYou will work closely with our Head of Engineering to define and uphold frontend engineering standards, lead our Communities of Practice, develop the engineers around you, and act as a trusted technical partner to our clients. At the same time, you will remain hands-on - taking on Tech Lead responsibilities within client engagements when needed and leading by example in craft.\nThis is not a purely managerial role, nor a purely technical one. It requires fluency across both and the credibility to operate at the Principal level in all three pillars of our framework: client work, internal collaboration, and technical specialism.\n\nWhat You'll Be Doing\n\nTechnical Strategy & Standards\nDefine and own frontend engineering standards across the practice — architecture patterns, testing philosophy, accessibility compliance, and performance benchmarks\n\nContribute to the broader engineering strategy alongside Heads of Practice and other Principals\n\nEstablish what good looks like across Core Web Vitals, WCAG compliance, and developer experience — and embed those standards into delivery processes across all engagements\n\nStay credibly hands-on: lead by example in complex architectural challenges, performance problems, and high-stakes delivery moments\n\nPeople Leadership & Development\n\nLine manage engineers up to Senior level — supporting their growth, contributing to performance reviews, and providing clear, evidence-based guidance\n\nMentor engineers across the practice, not just your direct reports — actively developing the next generation of Senior and Principal-level talent\n\nDefine and maintain the hiring bar for frontend engineering; lead and shape our interview process\n\nFoster a culture of collaboration, continuous learning, and high standards\n\nCommunity of Practice Leadership\n\nLead the Frontend Engineering Community of Practice — set the agenda, drive output, and ensure it creates real value for the engineers involved\n\nChampion best practices in frontend development across the practice: component architecture, testing, accessibility, performance, and developer tooling\n\nCollaborate with Principal Consultants across Delivery, UCD, QA, and DevOps to align strategy and drive cross-functional improvements\n\nDrive internal initiatives that produce lasting, measurable improvements to how we work\n\nClient Engagement & Delivery\n\nAct as a trusted technical advisor to senior client stakeholders — translating business challenges into scalable frontend engineering approaches\n\nLead or materially contribute to technical proposals, architecture sessions, and pre-sales conversations\n\nTake on Tech Lead or Senior Developer responsibilities within client engagements, setting technical direction and ensuring engineering excellence throughout the delivery lifecycle\n\nHandle complex and challenging client situations with confidence and composure — including escalations and high-pressure delivery moments\n\nContribute to the retention and growth of client accounts through the quality of your technical\nleadership and relationships\n\nWhat We're Looking For\n\nExperience & Background\n\n8+ years of experience in frontend software engineering, with meaningful time at Senior Consultant level or equivalent\n\nA track record of technical leadership on complex, client-facing engagements — not just strong individual contribution\n\nDemonstrable experience mentoring or managing engineers and helping them grow\n\nPrior experience in a consultancy or agency environment is strongly preferred\n\nTechnical\n\nDeep expertise in modern frontend development — component architecture, state management, build tooling, and the wider ecosystem\n\nStrong, practical knowledge of accessibility (WCAG 2.1 AA as a baseline), web performance (Core Web Vitals), and testing across unit, integration, and E2E\n\nAble to make high-quality architectural decisions in complex, ambiguous environments and articulate the trade-offs clearly\n\nComfortable contributing hands-on in critical delivery situations — this is not a purely strategic\nrole\n\nLeadership & Collaboration\n\nProven ability to lead Communities of Practice and shape engineering culture, not just participate in it\n\nStrong stakeholder management and communication skills — equally comfortable talking to engineers and to senior client decision-makers\n\nCollaborative by nature — works closely across disciplines (Delivery, UCD, QA, DevOps) and brings people with them\n\nWilling to attend our Poland office as needed\n\nTech stack\nJavaScript\nReact\nArchitecture","description_format":"text","description_chars":5191,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Continuous learning"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"},{"name":"Canada","iso":"CA","kind":"country"},{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-08T23:50:21Z"}],"visa":[],"liveness":{"score":32,"band":"fade","label":"Fading","p_open":0.85,"p_active":0.683,"p_room":0.55,"age_days":25,"expected_fill_days":23,"reasons":["seen:25","win:tail"],"computed_at":"2026-10-10T05:45:15Z"},"pay":{"stated_usd_annual":75216,"is_top_pay":false},"html_url":"https://alion.io/job/test-driven-solutions-principal-frontend-developer","json_url":"https://alion.io/job/test-driven-solutions-principal-frontend-developer.json","meta":{"generated_at":"2026-10-12T02:42:41Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":3982,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":4372490},"rest":"https://alion.io/mcp/rest/get_company?id=4372490"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftest-driven-solutions-principal-frontend-developer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ftest-driven-solutions-principal-frontend-developer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ftest-driven-solutions-principal-frontend-developer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/test-driven-solutions-principal-frontend-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftest-driven-solutions-principal-frontend-developer"}]}